:root{
  --paper:#FBFAF6;--card:#FFFFFF;--ink:#1A1A1E;--ink-mute:#6E6C66;
  /* Always-dark chrome (logo mark, footer, TOC bar, inverted pills) — never flips with text --ink */
  --ink-solid:#1A1A1E;--on-ink:#FFFFFF;
  --hairline:#E8E4D9;--hairline-strong:#D9D4C6;--pen:#E03A45;--pen-deep:#C22C38;
  --pen-wash:#FBE7E4;--pass:#16875A;--highlight:#FBE9A8;
  --shadow:0 1px 2px rgba(26,26,30,.04),0 12px 30px -18px rgba(26,26,30,.22);
  --shadow-lift:0 2px 4px rgba(26,26,30,.05),0 26px 50px -22px rgba(26,26,30,.32);
  --radius:14px;--maxw:1180px;
  --display:'Space Grotesk',system-ui,sans-serif;
  --body:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --nav-bg:rgba(251,250,246,.86);
}
html[data-theme="dark"]{
  --paper:#12141A;--card:#1A1D26;--ink:#ECEEF3;--ink-mute:#9A9DA8;
  --ink-solid:#0E1016;--on-ink:#FFFFFF;
  --hairline:#2A2E3A;--hairline-strong:#3A4050;--pen:#F04550;--pen-deep:#FF6B73;
  --pen-wash:#3A1F24;--pass:#3DBA7E;--highlight:#3F3820;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 16px 36px -18px rgba(0,0,0,.55);
  --shadow-lift:0 2px 6px rgba(0,0,0,.4),0 28px 50px -20px rgba(0,0,0,.65);
  --nav-bg:rgba(18,20,26,.9);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
/* Content / question links — red, no underline */
.qc-answer a,
.qc-list a,
.qc-breadcrumbs a,
.subject-hub ol > li > a,
.qc-qitem{
  color:var(--pen);
  text-decoration:none;
}
.qc-answer a:hover,
.qc-list a:hover,
.qc-breadcrumbs a:hover,
.subject-hub ol > li > a:hover,
.qc-qitem:hover{
  color:var(--pen-deep);
}
.qc-answer .qc-qblock__head a,
.qc-answer .btn,
.qc-answer .qc-related-card{
  color:inherit;text-decoration:none;
}

/* Question row: checkbox + number + Q mark + title */
.qc-qlist{list-style:none;margin:0;padding:0;counter-reset:none}
.qc-qlist > li{border-bottom:1px dashed var(--hairline)}
.qc-qlist > li:last-child{border-bottom:0}
.qc-topic-heading{
  font-size:1.05rem;margin:18px 0 12px;padding-bottom:6px;
  border-bottom:1px solid var(--hairline);color:var(--ink);
}
.qc-topic-heading:first-of-type{margin-top:16px}
.qc-qrow{padding:10px 0}
.qc-qrow__main{display:flex;align-items:flex-start;gap:10px}
.qc-qrow.is-done .qc-qitem__text{color:var(--ink-mute);text-decoration:line-through}
.qc-qrow.is-done .qc-qmark{opacity:.7}
.qc-qcheck{flex:none;position:relative;width:22px;height:22px;margin-top:3px;cursor:pointer}
.qc-qcheck__input{
  position:absolute;inset:0;opacity:0;margin:0;cursor:pointer;z-index:1;
}
.qc-qcheck__box{
  display:grid;place-items:center;width:22px;height:22px;
  border:1.5px solid var(--hairline-strong);border-radius:6px;background:var(--card);
  transition:.15s;
}
.qc-qcheck__box::after{
  content:"";width:10px;height:6px;border-left:2px solid #fff;border-bottom:2px solid #fff;
  transform:rotate(-45deg) translate(1px,-1px);opacity:0;
}
.qc-qcheck__input:checked + .qc-qcheck__box{
  background:var(--pass);border-color:var(--pass);
}
.qc-qcheck__input:checked + .qc-qcheck__box::after{opacity:1}
.qc-qcheck__input:focus-visible + .qc-qcheck__box{outline:2px solid var(--pen);outline-offset:2px}
.qc-qitem{
  display:flex;align-items:flex-start;gap:10px;flex:1;min-width:0;
  padding:2px 0;font-weight:500;line-height:1.45;
}
.qc-qmark{
  flex:none;margin-top:2px;padding:4px 8px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--display);font-weight:700;font-size:13px;letter-spacing:-.02em;
  color:var(--pen);background:var(--pen-wash);line-height:1;
  border:1px solid rgba(224,58,69,.22);border-radius:8px;white-space:nowrap;
}
.qc-qitem__text{min-width:0;flex:1}
.qc-qrow__aside{
  flex:none;display:flex;align-items:center;gap:10px;margin-left:auto;
}
.qc-qrow__actions{display:inline-flex;align-items:center;gap:6px}
.qc-qrow__act{
  display:inline-grid;place-items:center;width:30px;height:30px;border-radius:999px;
  border:1px solid var(--hairline-strong);background:var(--card);color:var(--ink-mute);
  text-decoration:none!important;transition:color .15s,border-color .15s,background .15s;
}
.qc-qrow__act--read{
  width:auto;min-width:0;height:30px;padding:0 12px;
  border-radius:8px;font-size:12px;font-weight:700;letter-spacing:.02em;
  color:var(--pen);background:var(--pen-wash);border-color:rgba(224,58,69,.22);
}
.qc-qrow__act:hover{color:var(--pen);border-color:var(--pen);background:var(--pen-wash)}
.qc-qrow__act--read:hover{color:var(--pen-deep);background:var(--pen-wash)}
.qc-qrow__act--video{color:var(--pen)}
.qc-qrow__star .qc-later-read{
  position:relative;display:inline-grid;place-items:center;width:30px;height:30px;padding:0;margin:0;
  border:1px solid var(--hairline-strong);border-radius:999px;background:var(--card);
  color:var(--ink-mute);gap:0;
}
.qc-qrow__star .qc-later-read__text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.qc-qrow__star .qc-later-read__star{width:16px;height:16px}
.qc-qrow__admin{
  margin:8px 0 4px 32px;padding:8px 10px;background:var(--paper);
  border:1px solid var(--hairline);border-radius:8px;font-size:13px;
}
.qc-unit-progress{
  margin:20px 0 24px;padding:16px 18px;background:var(--card);
  border:1px solid var(--hairline);border-radius:14px;box-shadow:var(--shadow);
}
.qc-unit-progress__meta p{margin:6px 0 0;font-size:14px;color:var(--ink-mute)}
.qc-unit-progress__meta strong{color:var(--ink);font-family:var(--mono)}
.qc-unit-progress__login{
  border:0;background:none;padding:0;color:var(--pen);font:inherit;font-weight:600;cursor:pointer;
}
.qc-unit-progress__bar{
  margin-top:12px;height:8px;border-radius:999px;background:var(--paper);overflow:hidden;
  border:1px solid var(--hairline);
}
.qc-unit-progress__bar i{
  display:block;height:100%;width:0;background:var(--pass);border-radius:inherit;transition:width .25s ease;
}
.qc-uni-papers{margin-top:40px;padding-top:28px;border-top:1px solid var(--hairline)}
.qc-uni-papers .qc-section-head{margin-bottom:18px}
.qc-qitem .year-badge,.qc-qrow__aside .year-badge{margin-left:0;align-self:center;flex:none;white-space:nowrap}
.year-badge--empty{opacity:.45}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.08;letter-spacing:-.015em;margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}
/* Vertical only — horizontal inset comes from .wrap */
.band{padding-top:88px;padding-bottom:88px}
.eyebrow{font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--pen);display:inline-flex;align-items:center;gap:9px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--pen);display:inline-block}
.sec-head{max-width:640px;margin-bottom:40px}
.sec-head h2{font-size:clamp(28px,3.4vw,40px)}
.sec-head p{color:var(--ink-mute);margin:.6rem 0 0;font-size:17px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--body);font-weight:600;font-size:15px;padding:13px 22px;border-radius:10px;cursor:pointer;border:1.5px solid transparent;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;white-space:nowrap}
.btn-primary{background:var(--pen);color:#fff;box-shadow:0 10px 22px -12px var(--pen)}
.btn-primary:hover{background:var(--pen-deep);transform:translateY(-1px)}
.btn-ghost{background:var(--card);color:var(--ink);border-color:var(--hairline-strong)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-block{width:100%}

header.nav{position:sticky;top:0;z-index:50;background:var(--nav-bg);backdrop-filter:blur(10px);border-bottom:1px solid var(--hairline)}
.nav-in{display:flex;align-items:center;gap:28px;height:70px;position:relative}
.qc-theme-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;border:1.5px solid var(--hairline-strong);
  background:var(--card);color:var(--ink-mute);cursor:pointer;flex:none;
}
.qc-theme-toggle:hover{border-color:var(--pen);color:var(--pen);background:var(--pen-wash)}
.qc-theme-toggle__sun{display:none}
html[data-theme="dark"] .qc-theme-toggle__moon{display:none}
html[data-theme="dark"] .qc-theme-toggle__sun{display:inline-flex}

/* Nav icons: cart + shop + user menu */
.qc-nav-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;border:1.5px solid var(--hairline-strong);
  background:var(--card);color:var(--ink-mute);cursor:pointer;flex:none;position:relative;text-decoration:none;
  overflow:visible;
}
.qc-nav-icon:hover{border-color:var(--pen);color:var(--pen);background:var(--pen-wash)}
.qc-nav-icon svg{display:block;flex:none}
.qc-nav-cart svg{transform:translateX(-1px)}
.qc-nav-badge{
  position:absolute;right:-4px;top:-4px;
  min-width:17px;height:17px;border-radius:999px;
  background:var(--pen);color:#fff;font-size:11px;font-weight:700;
  display:none;align-items:center;justify-content:center;padding:0 4px;
  border:2px solid var(--paper);line-height:1;
}
.qc-nav-badge.is-visible{display:flex}

.qc-user-menu{position:relative;flex:none}
.qc-user-menu__panel[hidden]{display:none!important}
.qc-user-menu.is-open .qc-user-menu__panel{display:block}
.qc-user-menu__btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:48px;height:40px;border-radius:10px;border:1.5px solid var(--hairline-strong);
  background:var(--card);color:var(--ink-mute);cursor:pointer;flex:none;
  padding:0 8px;line-height:1;overflow:visible;
}
.qc-user-menu__btn:hover{border-color:var(--pen);color:var(--pen);background:var(--pen-wash)}
.qc-user-menu__avatar{
  width:22px;height:22px;border-radius:8px;
  background:var(--ink-solid);color:var(--on-ink);
  display:grid;place-items:center;font-weight:800;font-family:var(--display);font-size:12px;flex:none;
}
.qc-user-menu__panel{
  position:absolute;right:0;top:calc(100% + 10px);
  min-width:220px;background:var(--card);
  border:1px solid var(--hairline-strong);border-radius:12px;
  box-shadow:var(--shadow-lift);padding:8px;z-index:120;
}
.qc-user-menu__item{
  display:block;padding:10px 12px;border-radius:10px;
  color:var(--ink);font-weight:600;text-decoration:none;
}
.qc-user-menu__item:hover{background:rgba(26,26,30,.04);color:var(--pen)}
.qc-hub__gate{max-width:560px;margin:48px auto;text-align:left}
.qc-hub__gate h1{margin:8px 0 10px;font-size:clamp(26px,3vw,34px)}
.qc-hub__gate-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:-.02em;flex:none;z-index:2}
.logo .q{width:34px;height:34px;border-radius:9px;background:var(--ink-solid);color:var(--on-ink);display:grid;place-items:center;font-family:var(--display);font-weight:700;font-size:19px;position:relative}
.logo .q::after{content:"";position:absolute;right:-3px;bottom:-3px;width:12px;height:12px;border-radius:50%;background:var(--pen);border:2px solid var(--paper)}

/* Primary nav — top level only in the bar */
.nav-links{
  display:flex;align-items:center;gap:8px;margin:0 0 0 8px;padding:0;
  list-style:none;font-size:15px;font-weight:500;flex:1;min-width:0;
}
.nav-links>li{position:relative;list-style:none}
.nav-links>li>a{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink-mute);padding:10px 12px;border-radius:8px;white-space:nowrap;
}
.nav-links>li>a:hover,
.nav-links>li.current-menu-item>a,
.nav-links>li.current-menu-ancestor>a{color:var(--ink);background:rgba(26,26,30,.04)}
.nav-links>li.menu-item-has-children>a::after{
  content:"";width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-2px);opacity:.55;margin-left:2px;
}

/* Keep dropdown open across the parent→submenu hover path */
.nav-links>li.menu-item-has-children{position:relative}
.nav-links>li.menu-item-has-children::after{
  content:"";position:absolute;left:0;right:0;top:100%;height:20px;z-index:59;
  pointer-events:auto;
}

/* Hide all nested menus by default (fixes Educrat mega-menu dump) */
.nav-links .sub-menu,
header.nav .nav-links ul.sub-menu{
  display:none!important;list-style:none;margin:0;padding:10px;
  position:absolute;top:100%;left:0;z-index:60;
  min-width:280px;max-width:360px;max-height:min(70vh,560px);overflow-x:hidden;overflow-y:auto;
  background:var(--card);border:1px solid var(--hairline-strong);border-radius:12px;
  box-shadow:var(--shadow-lift);
}
/* Invisible hover bridge sitting above the panel */
.nav-links>li>ul.sub-menu::before{
  content:"";position:absolute;left:0;right:0;top:-16px;height:16px;
}
.nav-links>li:hover>ul.sub-menu,
.nav-links>li:focus-within>ul.sub-menu,
.nav-links>li.is-open>ul.sub-menu{
  display:block!important;
}

/* Level-1 dropdown items (subjects / interview topics) */
.nav-links .sub-menu>li{position:relative;list-style:none}
.nav-links .sub-menu>li>a{
  display:block;padding:10px 12px;border-radius:8px;
  color:var(--ink);font-size:14px;font-weight:500;line-height:1.3;
}
.nav-links .sub-menu>li>a:hover{background:var(--pen-wash);color:var(--pen)}

/* Level-2 unit lists: flyout on desktop */
.nav-links .sub-menu .sub-menu{
  top:0;left:calc(100% - 4px);min-width:260px;max-width:340px;
  margin:0;
}
.nav-links .sub-menu>li:hover>ul.sub-menu,
.nav-links .sub-menu>li:focus-within>ul.sub-menu,
.nav-links .sub-menu>li.is-open>ul.sub-menu{display:block!important}
.nav-links .sub-menu>li.menu-item-has-children::after{
  content:"";position:absolute;top:0;right:-10px;width:14px;height:100%;
}
.nav-links .sub-menu .sub-menu a{
  font-size:13.5px;font-weight:400;color:var(--ink-mute);
}
.nav-links .sub-menu .sub-menu a:hover{color:var(--pen)}

/* Wide mega panel when a top item has many children (Subjects) */
.nav-links>li.menu-item-has-children:first-child>ul.sub-menu{
  display:none!important;
  left:0;right:auto;
  width:min(960px,calc(100vw - 40px));
  max-width:960px;
  min-width:min(640px,calc(100vw - 40px));
  max-height:min(78vh,680px);
  overflow-x:auto;
  overflow-y:auto;
  -webkit-overflow-scrolling:touch;
  padding:16px;
  columns:auto;
  column-count:auto;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:10px 14px;
  align-content:start;
}
.nav-links>li.menu-item-has-children:first-child:hover>ul.sub-menu,
.nav-links>li.menu-item-has-children:first-child:focus-within>ul.sub-menu,
.nav-links>li.menu-item-has-children:first-child.is-open>ul.sub-menu{
  display:grid!important;
}
.nav-links>li.menu-item-has-children:first-child>ul.sub-menu>li{
  break-inside:avoid;margin:0;min-width:0;
}
.nav-links>li.menu-item-has-children:first-child>ul.sub-menu>li>a{
  font-weight:600;color:var(--pen);padding:8px 10px;
}
.nav-links>li.menu-item-has-children:first-child>ul.sub-menu .sub-menu{
  position:static;display:block!important;box-shadow:none;border:0;
  padding:0 0 6px 8px;margin:0;
  max-height:none!important;min-width:0;max-width:none;
  width:auto;overflow:visible;background:transparent;
  columns:1;column-count:1;
}
.nav-links>li.menu-item-has-children:first-child>ul.sub-menu .sub-menu a{
  padding:5px 8px;font-size:12.5px;font-weight:500;color:var(--ink-mute);
}
.nav-links>li.menu-item-has-children:first-child>ul.sub-menu .sub-menu a:hover{
  color:var(--pen);background:var(--pen-wash);
}

.nav-cta{margin-left:auto;display:flex;align-items:center;gap:12px;flex:none;z-index:70;position:relative}
.nav-login{font-weight:600;font-size:15px;color:var(--ink);background:none;border:0;cursor:pointer}
.nav-dashboard{font-weight:600;font-size:15px;color:var(--ink);text-decoration:none}
.nav-dashboard:hover{color:var(--pen)}
.nav-cta .btn-primary,
.nav-cta .qc-open-register{
  font-size:13.5px;padding:9px 16px;border-radius:9px;
  box-shadow:0 6px 14px -10px var(--pen);
}
.menu-btn{display:none;background:none;border:0;padding:8px;cursor:pointer;z-index:2}

/* Mobile open state — simple panel (card/scroll experiments reverted) */
header.nav.is-mobile-open .nav-links{
  display:flex!important;flex-direction:column;align-items:stretch;
  position:absolute;top:70px;left:0;right:0;z-index:55;
  background:var(--paper);padding:12px 16px 20px;gap:4px;
  border-bottom:1px solid var(--hairline);max-height:calc(100vh - 70px);overflow:auto;
  box-shadow:var(--shadow-lift);
}
header.nav.is-mobile-open .nav-links>li>a{
  padding:12px 14px;color:var(--ink);
}
header.nav.is-mobile-open .nav-links>li.is-open>a,
header.nav.is-mobile-open .nav-links>li.current-menu-item>a,
header.nav.is-mobile-open .nav-links>li.current-menu-ancestor>a{
  color:var(--pen);
}
header.nav.is-mobile-open .nav-links .sub-menu{
  position:static!important;left:auto!important;right:auto!important;top:auto!important;
  display:none;width:auto!important;max-width:none!important;min-width:0!important;
  max-height:none!important;overflow:visible!important;
  box-shadow:none!important;border:0!important;background:transparent!important;
  padding:4px 0 8px 12px;columns:1!important;column-count:1!important;
}
/* Mobile accordion: ignore sticky hover/focus — only .is-open opens panels */
header.nav.is-mobile-open .nav-links>li:hover>ul.sub-menu,
header.nav.is-mobile-open .nav-links>li:focus-within>ul.sub-menu,
header.nav.is-mobile-open .nav-links>li.menu-item-has-children:first-child:hover>ul.sub-menu,
header.nav.is-mobile-open .nav-links>li.menu-item-has-children:first-child:focus-within>ul.sub-menu,
header.nav.is-mobile-open .nav-links .sub-menu>li:hover>ul.sub-menu,
header.nav.is-mobile-open .nav-links .sub-menu>li:focus-within>ul.sub-menu{
  display:none!important;
}
header.nav.is-mobile-open .nav-links>li.is-open>ul.sub-menu,
header.nav.is-mobile-open .nav-links>li.menu-item-has-children:first-child.is-open>ul.sub-menu{
  display:block!important;
}
/* Nested menus: accordion for non-mega items; mega (B Tech) keeps units visible */
header.nav.is-mobile-open .nav-links .sub-menu .sub-menu{
  display:none!important;padding-left:12px;position:static!important;
}
header.nav.is-mobile-open .nav-links .sub-menu>li.is-open>ul.sub-menu{
  display:block!important;
}
/* B Tech mega panel: show subject + unit links (tappable) when open */
header.nav.is-mobile-open .nav-links>li.menu-item-has-children:first-child.is-open>ul.sub-menu .sub-menu{
  display:block!important;padding-left:12px;position:static!important;
}
header.nav.is-mobile-open .nav-links>li.menu-item-has-children:first-child>ul.sub-menu{
  width:auto!important;max-width:none!important;columns:1!important;column-count:1!important;
}
/* Desktop hover bridges steal taps on mobile — kill hit targets */
header.nav.is-mobile-open .nav-links>li.menu-item-has-children::after,
header.nav.is-mobile-open .nav-links .sub-menu>li.menu-item-has-children::after,
header.nav.is-mobile-open .nav-links>li>ul.sub-menu::before{
  display:none!important;pointer-events:none!important;
}
header.nav.is-mobile-open .nav-links>li.menu-item-has-children>a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
header.nav.is-mobile-open .nav-links>li.menu-item-has-children.is-open>a::after{
  transform:rotate(225deg) translateY(2px);opacity:1;color:var(--pen);
}
@media(max-width:960px){
  .nav-links>li.menu-item-has-children::after,
  .nav-links .sub-menu>li.menu-item-has-children::after,
  .nav-links>li>ul.sub-menu::before{
    display:none!important;pointer-events:none!important;
  }
}

.hero{padding:64px 0 76px;position:relative;overflow:hidden}
/* .hero.wrap must set all sides — later .wrap{padding:0 Npx} would zero top/bottom */
.hero.wrap{padding:64px 24px 76px}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;background-image:linear-gradient(var(--hairline) 1px,transparent 1px);background-size:100% 32px;mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
.hero h1{font-size:clamp(38px,5.2vw,62px);letter-spacing:-.03em;margin:22px 0 0}
.hero h1 .mark{position:relative;white-space:nowrap}
.hero h1 .mark::after{content:"";position:absolute;left:-2px;right:-2px;bottom:2px;height:12px;z-index:-1;background:var(--pen-wash);border-radius:3px;transform:rotate(-.6deg)}
.hero p.lead{font-size:19px;color:var(--ink-mute);max-width:520px;margin:20px 0 0}
/* Use form.search — WP adds .search to body on search results pages */
form.search{margin-top:30px;background:var(--card);border:1.5px solid var(--hairline-strong);border-radius:14px;padding:10px 10px 10px 18px;display:flex;align-items:center;gap:12px;box-shadow:var(--shadow);max-width:540px;width:100%;box-sizing:border-box}
form.search svg{flex:none;color:var(--ink-mute);width:20px;height:20px}
form.search input{
  border:0;outline:0;flex:1;font-family:var(--body);
  font-size:17px;line-height:1.4;background:transparent;min-width:0;
  min-height:48px;padding:12px 4px;box-sizing:border-box;color:var(--ink);
}
form.search input::placeholder{color:#9c988e}
form.search .btn{padding:14px 22px;min-height:48px;flex:none}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{font-family:var(--mono);font-size:12.5px;color:var(--ink-mute);background:var(--card);border:1px solid var(--hairline-strong);padding:6px 11px;border-radius:20px}
.chip:hover{border-color:var(--pen);color:var(--pen)}
.hero-trust{display:flex;gap:26px;margin-top:30px;flex-wrap:wrap}
.hero-trust div{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--ink-mute)}
.hero-trust b{font-family:var(--display);color:var(--ink)}
.hero-trust .dot{width:7px;height:7px;border-radius:50%;background:var(--pass)}

.paper-wrap{position:relative;perspective:1400px}
.paper{background:var(--card);border:1px solid var(--hairline-strong);border-radius:12px;box-shadow:var(--shadow-lift);padding:26px 26px 26px 64px;position:relative;transform:rotate(1.4deg);transition:transform .4s ease}
.paper-wrap:hover .paper{transform:rotate(0)}
.paper::before{content:"";position:absolute;left:44px;top:0;bottom:0;width:1.5px;background:var(--pen-wash)}
.paper-head{display:flex;justify-content:space-between;border-bottom:1.5px solid var(--hairline);padding-bottom:14px;margin-bottom:6px}
.paper-head .subj{font-family:var(--display);font-weight:700;font-size:17px}
.paper-head .meta,.paper-head .marks,.qmark{font-family:var(--mono);font-size:11px;color:var(--ink-mute)}
.qrow{display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--hairline)}
.qrow:last-child{border-bottom:0}
.qno{font-family:var(--mono);font-weight:600;font-size:13px;color:var(--pen);width:26px;flex:none}
.qtext{font-size:14.5px;min-height:1.35em}
.qtext.is-caret::after{
  content:"";display:inline-block;width:1.5px;height:.95em;margin-left:2px;
  vertical-align:-2px;background:var(--pen);
  animation:qc-caret-blink .7s steps(1) infinite;
}
.qrow.is-typing .qmark{opacity:0;transition:opacity .35s ease}
.qrow.is-typed .qmark{opacity:1}
.anno{position:absolute;font-family:var(--mono);font-weight:600;color:var(--pen)}
.anno-star{
  top:78px;right:-14px;font-size:13px;transform:rotate(6deg);
  background:var(--card);padding:3px 8px;border:1.5px solid var(--pen);border-radius:20px;
  opacity:0;pointer-events:none;
  box-shadow:0 0 0 0 rgba(224,58,69,.35);
}
.anno-star.is-live{
  opacity:1;pointer-events:auto;
  animation:qc-most-asked 2.4s ease-in-out infinite;
}
.anno-tick{bottom:22px;right:16px;color:var(--pass);opacity:0;transform:scale(.6);transition:opacity .4s ease, transform .45s cubic-bezier(.2,1.4,.3,1)}
.anno-tick.is-live{opacity:1;transform:scale(1)}
.paper-badge{position:absolute;left:-18px;bottom:-16px;background:var(--ink-solid);color:var(--on-ink);font-family:var(--mono);font-size:12px;padding:9px 14px;border-radius:10px;display:flex;align-items:center;gap:8px}
.paper-badge .g{width:8px;height:8px;border-radius:50%;background:var(--pass)}

@keyframes qc-caret-blink{
  0%,100%{opacity:1}
  50%{opacity:0}
}
@keyframes qc-most-asked{
  0%,100%{transform:rotate(6deg) translateY(0) scale(1);box-shadow:0 0 0 0 rgba(224,58,69,.28)}
  35%{transform:rotate(8deg) translateY(-3px) scale(1.06);box-shadow:0 8px 18px -10px rgba(224,58,69,.55), 0 0 0 6px rgba(224,58,69,.12)}
  55%{transform:rotate(4deg) translateY(0) scale(1.02)}
  75%{transform:rotate(7deg) translateY(-1px) scale(1.04);box-shadow:0 0 0 0 rgba(224,58,69,.2)}
}
@media (prefers-reduced-motion: reduce){
  .qtext.is-caret::after{animation:none;display:none}
  .anno-star{opacity:1;animation:none!important}
  .anno-tick{opacity:1;transform:none}
  .qrow.is-typing .qmark{opacity:1}
}

.uni-strip{border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);background:var(--card)}
.uni-in{display:flex;align-items:center;gap:34px;padding:22px 0;flex-wrap:wrap}
.uni-in .label{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-mute)}
.uni-logos{display:flex;gap:14px;flex-wrap:wrap}
.uni-pill{font-family:var(--display);font-weight:700;font-size:15px;border:1.5px solid var(--hairline-strong);border-radius:8px;padding:8px 16px;background:var(--paper)}

.grid{display:grid;gap:18px}
.subjects,.unis,.posts{grid-template-columns:repeat(3,1fr)}
.subj-card,.uni-card,.post,.paper-card,.qc-card{background:var(--card);border:1px solid var(--hairline);border-radius:var(--radius);padding:24px;transition:.18s}
.post{display:flex;flex-direction:column;gap:10px;min-height:140px;text-decoration:none;color:inherit}
.subj-card:hover,.uni-card:hover,.post:hover,.paper-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:var(--hairline-strong)}
.subj-ic{width:46px;height:46px;border-radius:11px;background:var(--pen-wash);color:var(--pen);display:grid;place-items:center;margin-bottom:16px}
.subj-card h3,.uni-card h3{font-size:20px}
.subj-card p{color:var(--ink-mute);font-size:14.5px;margin:7px 0 16px}
.subj-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--hairline);padding-top:14px}
.subj-foot .units{font-family:var(--mono);font-size:12px;color:var(--ink-mute)}
.go{color:var(--pen);font-weight:600;font-size:14px}

.how{background:var(--ink-solid);color:#fff;border-radius:24px;padding:60px 52px}
.how .eyebrow{color:#fff}.how .eyebrow::before{background:var(--pen)}
.how h2{color:#fff;font-size:clamp(28px,3.4vw,38px)}
.how .sub{color:#b6b4ac;margin:.6rem 0 44px;max-width:560px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{border:1px solid #33333a;border-radius:16px;padding:26px 24px;background:#202027}
.step .n{font-family:var(--mono);font-size:13px;color:var(--pen);font-weight:600}
.step h3{color:#fff;font-size:21px;margin:14px 0 8px}
.step p{color:#a9a7a0;font-size:14.5px;margin:0}

.uni-badge{width:52px;height:52px;border-radius:12px;background:var(--ink-solid);color:var(--on-ink);display:grid;place-items:center;font-family:var(--display);font-weight:700}
.uni-card .tags{display:flex;flex-wrap:wrap;gap:6px}
.uni-card .tags span,.subj-card .tags span{font-family:var(--mono);font-size:11.5px;color:var(--ink-mute);background:var(--paper);border:1px solid var(--hairline);padding:4px 9px;border-radius:6px}
.subj-card .tags{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px}
.subj-card .uni-badge{margin-bottom:14px}

.prep{background:var(--card);border:1px solid var(--hairline);border-radius:24px;padding:52px}
.prep-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.prep-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.prep-tag{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-size:14.5px;padding:10px 15px;border:1.5px solid var(--hairline-strong);border-radius:10px;background:var(--paper)}
.prep-tag:hover{border-color:var(--pen);color:var(--pen)}

/* Homepage — Interview Preparation Zone */
.qc-interview-zone{
  position:relative;overflow:hidden;
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, var(--pen-wash) 0%, transparent 55%),
    linear-gradient(160deg, var(--highlight) 0%, var(--card) 42%, var(--card) 100%);
  border:1.5px solid rgba(224,58,69,.28);
  box-shadow:var(--shadow-lift, 0 2px 4px rgba(26,26,30,.05), 0 22px 40px -20px rgba(26,26,30,.22));
}
html[data-theme="dark"] .qc-interview-zone{
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, var(--pen-wash) 0%, transparent 55%),
    linear-gradient(160deg, var(--highlight) 0%, var(--card) 50%, var(--card) 100%);
  border-color:rgba(224,58,69,.4);
}
.qc-interview-zone__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px 28px;
  margin-bottom:28px;
}
.qc-interview-zone__head h2{
  font-size:clamp(26px,3.2vw,36px);margin:12px 0 0;letter-spacing:-.02em;max-width:22ch;
}
.qc-interview-zone__head p{
  color:var(--ink-mute);font-size:16.5px;margin:.55rem 0 0;max-width:38rem;line-height:1.45;
}
.qc-interview-zone__cta{display:flex;flex-wrap:wrap;gap:10px;flex:none}
.qc-interview-zone__body{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(220px,.85fr);gap:28px;align-items:stretch;
}
.qc-interview-zone__cards{min-width:0}
.qc-interview-zone__cards .qc-link-cards,
.qc-interview-zone__cards .qc-link-cards--cols-3{
  margin:0;gap:12px;
  grid-template-columns:repeat(3, minmax(0, 1fr));
}
.qc-interview-zone__fallback{
  grid-template-columns:repeat(3, minmax(0, 1fr));gap:12px;margin:0;
}
.qc-interview-zone__visual{display:flex;align-items:center}
.qc-interview-zone__visual .term{width:100%;margin:0}
.qc-interview-zone__foot{
  margin:22px 0 0;padding-top:18px;border-top:1px dashed var(--hairline-strong);
  font-weight:700;font-size:14.5px;
}
.qc-interview-zone__foot a{color:var(--pen)}
.qc-interview-zone__foot a:hover{text-decoration:underline}
@media(max-width:980px){
  .qc-interview-zone__body{grid-template-columns:1fr}
  .qc-interview-zone__visual{order:-1}
  .qc-interview-zone__cards .qc-link-cards,
  .qc-interview-zone__cards .qc-link-cards--cols-3,
  .qc-interview-zone__fallback{grid-template-columns:repeat(2, minmax(0, 1fr))}
}
@media(max-width:640px){
  .qc-interview-zone__cards .qc-link-cards,
  .qc-interview-zone__cards .qc-link-cards--cols-3,
  .qc-interview-zone__fallback{grid-template-columns:1fr}
  .qc-interview-zone__cta{width:100%}
  .qc-interview-zone__cta .btn{flex:1;justify-content:center;text-align:center}
}
.term{background:var(--ink-solid);border-radius:11px;padding:18px;font-family:var(--mono);font-size:13.5px;color:#e8e6df;line-height:1.9}
.term .prompt{color:var(--pen)}.term .ok{color:#3ecf8e}.term .cm{color:#8a877f}
.term .dots{display:flex;gap:6px;margin-bottom:14px}
.term .dots i{width:11px;height:11px;border-radius:50%;display:block}

.syl{columns:3;column-gap:24px}
.syl-block{break-inside:avoid;background:var(--card);border:1px solid var(--hairline);border-radius:var(--radius);padding:20px 22px;margin-bottom:24px}
.syl-block h3{font-size:16px;display:flex;align-items:center;gap:9px;margin-bottom:12px}
.syl-block h3 .tick{width:18px;height:18px;border-radius:5px;background:var(--pen-wash);color:var(--pen);display:grid;place-items:center;flex:none}
.syl-block h3 a{color:inherit}
.syl-block h3 a:hover{color:var(--pen)}
.syl-block ul{list-style:none;margin:0;padding:0}
.syl-block li{border-top:1px dashed var(--hairline)}
.syl-block li a{display:flex;gap:10px;padding:8px 0;font-size:14px;color:var(--ink-mute);align-items:baseline;transition:.13s}
.syl-block li a:hover{color:var(--pen)}
.syl-block li .u{font-family:var(--mono);font-size:11px;color:var(--pen);width:44px;flex:none}

.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--hairline);border-radius:20px;overflow:hidden;background:var(--card)}
.stat{padding:36px 28px;border-right:1px solid var(--hairline)}
.stat:last-child{border-right:0}
.stat .num{font-family:var(--display);font-weight:700;font-size:44px}
.stat .num .u{color:var(--pen)}
.stat .lbl{font-size:14px;color:var(--ink-mute);margin-top:4px}

.post .cat{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--pen)}
.post h3{font-size:18px;line-height:1.25}
.post .date{font-family:var(--mono);font-size:12px;color:var(--ink-mute);margin-top:auto}

.cta-band{background:var(--pen);border-radius:24px;padding:60px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-band h2{color:#fff;font-size:clamp(28px,3.6vw,42px);position:relative}
.cta-band p{color:#ffe3e0;font-size:18px;margin:14px 0 30px;position:relative}
.cta-band .btn{position:relative;background:#fff;color:var(--pen);border:0}
.cta-band .qc-home-modules__foot--cta{justify-content:center;margin-top:0}
.cta-band .qc-home-modules__foot--cta .btn{margin:0}

/* Homepage dual modules */
.qc-home-modules{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;
  margin:0 0 18px;max-width:560px;
}
.qc-home-modules--hero{
  margin:14px 0 0;gap:10px;
}
.qc-home-modules--hero .qc-home-modules__card{
  min-height:0;padding:12px 14px;gap:4px;
}
.qc-home-modules--hero .qc-home-modules__go{padding-top:4px}
.qc-home-modules--band{max-width:none;margin:0}
.qc-home-modules__card{
  display:flex;flex-direction:column;gap:6px;min-height:118px;
  padding:16px 18px;border-radius:14px;background:var(--card);
  border:1px solid var(--hairline-strong);box-shadow:var(--shadow);
  text-decoration:none!important;color:inherit;transition:.18s;
}
.qc-home-modules__card:hover{
  transform:translateY(-2px);border-color:var(--pen);box-shadow:var(--shadow-lift);
}
.qc-home-modules__card--lg{min-height:180px;padding:22px 22px}
.qc-home-modules__label{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--pen);
}
.qc-home-modules__card strong{
  font-family:var(--display);font-size:17px;line-height:1.25;font-weight:600;
}
.qc-home-modules__card--lg strong{font-size:22px}
.qc-home-modules__meta{font-size:13px;color:var(--ink-mute);line-height:1.4}
.qc-home-modules__links{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;
  font-family:var(--mono);font-size:12px;color:var(--ink-mute);
}
.qc-home-modules__go{margin-top:auto;font-weight:700;font-size:13px;color:var(--pen);padding-top:8px}
.hero .chips{margin-top:14px}
.hero .hero-trust{margin-top:22px}
.qc-home-modules__foot{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;
}

/* Quick path jumper */
.qc-path-jump{
  margin:16px 0 0;padding:16px 16px 14px;max-width:560px;
  background:var(--card);border:1px solid var(--hairline-strong);
  border-radius:14px;box-shadow:var(--shadow);
}
#quick-jump .qc-path-jump{
  margin:16px auto 0;max-width:640px;
}
.qc-hub__jump{padding:12px 0 24px}
.qc-hub__jump .qc-path-jump{margin:0 auto;max-width:720px}
/* Only vertical — keep .wrap left/right padding so CTA matches panel width */
.qc-hub__cta{
  padding-top:40px;
  padding-bottom:64px;
}

/* Homepage: keep section rhythm without double 88px gaps */
body.home .band.wrap{
  padding-top:44px;
  padding-bottom:44px;
}
body.home #quick-jump.band{
  padding-top:20px;
  padding-bottom:8px;
}
body.home #modules.band{
  padding-top:24px;
  padding-bottom:36px;
}
body.home #subjects.band,
body.home #syllabus.band,
body.home #universities.band,
body.home #interview.band{
  padding-top:36px;
  padding-bottom:36px;
}
body.home .sec-head{margin-bottom:28px}
.qc-uni-hub__intro{margin:0 0 18px}
.qc-uni-hub__intro p{margin:0 0 12px}
.qc-uni-hub__jump{margin:0 0 28px}
.qc-uni-hub__jump .qc-path-jump{
  margin-left:auto;margin-right:auto;max-width:640px;
}
.qc-uni-hub__courses-head{
  max-width:640px;margin:0 0 28px;
}
.qc-uni-hub__courses-head .eyebrow{margin-bottom:10px}
.qc-uni-hub__courses-head h2{
  font-size:clamp(26px,3.2vw,36px);margin:0;
}
.qc-uni-hub__courses-head p{
  color:var(--ink-mute);margin:10px 0 0;font-size:16px;
}
#uni-courses{scroll-margin-top:88px}
#quick-jump.band{padding-bottom:12px}
#modules.band{padding-top:28px}
.qc-path-jump__eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--pen);
}
.qc-path-jump__title{
  margin:4px 0 12px;font-family:var(--display);font-size:18px;font-weight:600;line-height:1.2;
}
.qc-path-jump__mods{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px}
.qc-path-jump__mod{
  display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;
  border:1px solid var(--hairline-strong);background:var(--paper);font-size:13px;font-weight:600;cursor:pointer;
}
.qc-path-jump__mod:has(input:checked){
  border-color:var(--pen);background:var(--pen-wash);color:var(--pen-deep);
}
.qc-path-jump__mod input{accent-color:var(--pen)}
.qc-path-jump__fields{
  display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0 0 12px;
}
.qc-path-jump__field{display:flex;flex-direction:column;gap:5px;min-width:0}
.qc-path-jump__field[hidden],
[data-qc-jump-branch-wrap][hidden]{display:none!important}
.qc-path-jump__field.is-disabled .qc-path-jump__control,
.qc-path-jump__field select:disabled{
  opacity:.55;cursor:not-allowed;background:var(--paper);color:var(--ink-mute);
}
.qc-path-jump__label{
  font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-mute);
}
/* Border on shell + padding-right = gap beside native OS arrow (padding on select alone cannot move it). */
.qc-path-jump__control{
  display:block;min-width:0;
  border:1.5px solid var(--hairline-strong);border-radius:10px;background:var(--card);
  padding-right:10px;
}
.qc-path-jump__control:focus-within{
  border-color:var(--pen);box-shadow:0 0 0 3px var(--pen-wash);
}
.qc-path-jump__field select{
  display:block;width:100%;border:0;border-radius:0;background:transparent;
  padding:10px 0 10px 12px;font:inherit;font-size:14px;color:var(--ink);
}
.qc-path-jump__field select:focus{outline:none}
.qc-path-jump__go{width:100%}
.qc-path-jump__hint{margin:8px 0 0;font-size:13px;color:var(--pen)}
@media(max-width:640px){
  .qc-home-modules{grid-template-columns:1fr;max-width:none}
  .qc-path-jump__fields{grid-template-columns:1fr}
}
.qc-home-uni__main{
  display:flex;flex-direction:column;gap:12px;padding:24px 24px 16px;
  text-decoration:none;color:inherit;
}
.qc-home-uni__actions{
  display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--hairline);
}
.qc-home-uni__actions a{
  padding:12px 14px;text-align:center;font-weight:700;font-size:13px;color:var(--pen);
  text-decoration:none!important;
}
.qc-home-uni__actions a:hover{background:var(--pen-wash)}
.qc-home-uni__actions a + a{border-left:1px solid var(--hairline)}
.qc-home-uni{padding:0;overflow:hidden}

footer.site-footer{background:var(--ink-solid);color:#c9c7c0;margin-top:88px;padding:64px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1.15fr 1fr;gap:40px}
footer .logo{color:#fff}
footer .logo .q{background:#fff;color:var(--ink-solid)}
footer .logo .q::after{border-color:var(--ink-solid)}
.foot-about{color:#96948d;font-size:14.5px;margin:16px 0 14px;max-width:300px;line-height:1.5}
.foot-contact{margin:0 0 14px}
.foot-contact a{color:#fff;font-size:14.5px;font-weight:600}
.foot-contact a:hover{color:var(--pen)}
.foot-cta{margin:0}
.foot-cta .btn{padding:10px 16px;font-size:13.5px}
footer h4{color:#fff;font-family:var(--display);font-size:14px;letter-spacing:.04em;text-transform:uppercase;margin-bottom:16px}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:10px}
footer li a{font-size:14.5px;color:#96948d}
footer li a:hover{color:#fff}
.foot-bottom{border-top:1px solid #33333a;margin-top:48px;padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px 20px;font-size:13.5px;color:#7d7b74}
.foot-legal{display:flex;flex-wrap:wrap;gap:8px 18px}
.foot-legal a{color:#96948d}
.foot-legal a:hover{color:#fff}
@media(max-width:960px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px 24px}
  .foot-brand{grid-column:1 / -1}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
}

/* Layout: question / answer pages */
.qc-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:32px;padding:36px 0 64px;align-items:start}
.qc-sidebar{position:sticky;top:90px;min-width:0}
.qc-rail__head-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.qc-rail__head-row .qc-rail__eyebrow{margin-bottom:0}
/* Desktop accordion: hide/show syllabus list top→bottom (no column width shift) */
.qc-rail-collapse{
  flex:0 0 auto;min-width:32px;height:32px;padding:0 10px;border-radius:9px;
  border:1px solid var(--hairline-strong);background:var(--paper);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;
  font:inherit;font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .15s ease,border-color .15s ease,color .15s ease;
}
.qc-rail-collapse:hover{background:var(--pen-wash);border-color:var(--pen);color:var(--pen)}
.qc-rail-collapse__icon{
  display:inline-flex;width:12px;height:12px;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(-135deg);margin-top:4px;transition:transform .18s ease;
}
.qc-rail-collapse__label-expand{display:none}
.qc-sidebar.is-rail-collapsed .qc-rail__panel{
  display:none!important;
}
.qc-sidebar.is-rail-collapsed .qc-rail-collapse__label-collapse{display:none}
.qc-sidebar.is-rail-collapsed .qc-rail-collapse__label-expand{display:inline}
.qc-sidebar.is-rail-collapsed .qc-rail-collapse__icon{
  transform:rotate(45deg);margin-top:-2px;
}
.qc-sidebar.is-interview .qc-rail__list a{
  grid-template-columns:28px minmax(0,1fr) auto;
}
.qc-sidebar.is-interview .qc-rail__name{
  font-size:13.5px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* Premium paper-style unit rail (homepage aesthetic) */
.qc-rail{
  background:var(--card);
  border:1px solid var(--hairline-strong);
  border-radius:14px;
  box-shadow:var(--shadow);
  padding:20px 16px 16px;
  position:relative;
  overflow:hidden;
}
.qc-rail__head{padding-left:0;margin-bottom:16px}
.qc-rail__eyebrow{
  font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--pen);
  display:block;margin-bottom:12px;
}
.qc-rail__subject{
  display:flex;align-items:flex-start;gap:12px;
  margin-bottom:14px;
}
.qc-rail__subject strong{
  display:block;font-family:var(--display);font-size:18px;
  letter-spacing:-.02em;line-height:1.15;
}
.qc-rail__subject em{
  display:block;font-style:normal;font-size:13px;
  color:var(--ink-mute);margin-top:4px;
}
.qc-rail__mark{
  width:36px;height:36px;border-radius:9px;flex:none;
  background:var(--ink-solid);color:var(--on-ink);
  display:grid;place-items:center;
  font-family:var(--display);font-weight:700;font-size:18px;
  position:relative;
}
.qc-rail__mark::after{
  content:"";position:absolute;right:-3px;bottom:-3px;
  width:11px;height:11px;border-radius:50%;
  background:var(--pen);border:2px solid var(--card);
}
.qc-rail__meta{
  display:flex;gap:14px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11.5px;color:var(--ink-mute);
  margin-bottom:10px;
}
.qc-rail__meta b{color:var(--ink);font-weight:600}
.qc-rail__progress{
  height:4px;border-radius:99px;background:var(--hairline);
  overflow:hidden;margin-bottom:8px;
}
.qc-rail__progress span{
  display:block;height:100%;border-radius:99px;background:var(--pen);
}
.qc-rail__hint,.qc-rail__empty{
  margin:0;font-size:12.5px;color:var(--ink-mute);line-height:1.45;
}
.qc-rail__nav{padding-left:0}
.qc-rail__list{list-style:none;margin:0;padding:0}
.qc-rail__list li{margin:0}
.qc-rail__list a{
  display:grid;grid-template-columns:28px minmax(0,1fr) auto;
  gap:10px;align-items:center;
  padding:11px 10px 11px 12px;margin:2px 0;
  border-radius:10px;border:1px solid transparent;
  color:var(--ink-mute);transition:background .15s ease,border-color .15s ease,color .15s ease;
}
.qc-rail__list a:hover{
  background:var(--paper);border-color:var(--hairline);color:var(--ink);
}
.qc-rail__list .is-active a{
  background:var(--pen-wash);border-color:#f0c7c2;color:var(--pen);
  box-shadow:inset 3px 0 0 var(--pen);
}
.qc-rail__no{
  font-family:var(--mono);font-weight:600;font-size:13px;
  color:var(--pen);text-align:center;
}
.qc-rail__list .is-empty .qc-rail__no{color:var(--ink-mute);opacity:.55}
.qc-rail__body{min-width:0;display:flex;flex-direction:column;gap:2px}
.qc-rail__code{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;
  text-transform:uppercase;opacity:.75;
}
.qc-rail__name{
  font-size:13.5px;font-weight:600;line-height:1.35;
  color:var(--pen);white-space:normal;overflow:visible;text-overflow:unset;
  overflow-wrap:anywhere;word-break:break-word;
}
.qc-rail__list a:hover .qc-rail__name,
.qc-rail__list .is-active .qc-rail__name{
  color:var(--pen-deep);text-decoration:underline;text-underline-offset:2px;
}
.qc-rail__count{
  font-family:var(--mono);font-size:11px;min-width:28px;text-align:right;
  color:var(--ink-mute);
}
.qc-rail__count.is-ready{
  color:var(--pass);font-weight:600;
}
.qc-rail__foot{
  display:grid;gap:8px;margin-top:16px;padding:14px 0 0;
  border-top:1px dashed var(--hairline);
}
.qc-rail__pill{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;
  border:1.5px solid var(--hairline-strong);background:var(--paper);
  font-size:13.5px;font-weight:600;color:var(--ink);
  transition:border-color .15s ease,transform .15s ease;
}
.qc-rail__pill:hover{border-color:var(--ink);transform:translateY(-1px)}
.qc-rail__pill--ink{background:var(--ink-solid);color:var(--on-ink);border-color:var(--ink-solid)}
.qc-rail__pill--ink:hover{background:#2a2a30;border-color:#2a2a30;color:var(--on-ink)}
html[data-theme="dark"] .qc-rail__pill--ink:hover{background:#252836;border-color:#252836}

/* Mobile-only syllabus collapse control */
.qc-rail__toggle{display:none}
.qc-rail__fab-label{display:none}
.qc-rail__drawer-close{display:none}
.qc-rail__subject-row{display:contents}
.qc-rail__subject strong{color:var(--pen)}
.qc-rail__subject:hover strong{color:var(--pen-deep);text-decoration:underline;text-underline-offset:2px}

.qc-unit-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px}
.qc-unit-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:500;color:var(--ink-mute);
  background:var(--card);border:1px solid var(--hairline-strong);
  padding:8px 12px;border-radius:10px;
}
.qc-unit-chip:hover{border-color:var(--pen);color:var(--pen)}
.qc-unit-chip__no{
  font-family:var(--mono);font-size:11px;font-weight:600;color:var(--pen);
}

.qc-qblock{margin-bottom:18px}
.qc-qblock__head{
  display:flex;align-items:center;gap:12px;
  margin-bottom:8px;padding-bottom:14px;
  border-bottom:1.5px solid var(--hairline);
}
.qc-qblock__head h2{
  font-size:20px;flex:1;margin:0;line-height:1.25;
}
.qc-qblock__tag{
  width:28px;height:28px;border-radius:8px;flex:none;
  display:grid;place-items:center;
  background:var(--pen-wash);color:var(--pen);
  font-family:var(--mono);font-weight:700;font-size:12px;
  line-height:1;
}
.qc-qblock__count{color:var(--ink-mute);font-size:12px}
.qc-unit-panel{
  padding:18px 0;border-bottom:1px dashed var(--hairline);
}
.qc-unit-panel:last-child{border-bottom:0;padding-bottom:0}
.qc-unit-panel__head{
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:16px;margin-bottom:8px;
}
.qc-unit-panel__head h3{font-size:17px;margin:2px 0 0;line-height:1.25}
.qc-unit-panel__code{font-size:11px;color:var(--pen);letter-spacing:.06em;text-transform:uppercase}
.qc-empty{color:var(--ink-mute);font-size:14px;margin:8px 0}

.qc-main{min-width:0}
.qc-main h1{font-size:clamp(22px,3.2vw,40px);margin-bottom:12px;overflow-wrap:anywhere;word-break:break-word}
.qc-main .lead{color:var(--ink-mute);margin:0 0 28px}
.qc-answer{
  background:var(--card);border:1px solid var(--hairline);border-radius:16px;
  padding:28px 30px;box-shadow:var(--shadow);min-width:0;overflow-x:clip;
}

/* Premium TOC — matches rail / answer card language */
.custom-toc-wrapper,
.qc-answer .custom-toc-wrapper{
  margin:0 0 1.4em;padding:0;overflow:hidden;
  background:var(--card);border:1px solid var(--hairline-strong);border-radius:14px;
  box-shadow:var(--shadow);font-family:var(--body);
}
.custom-toc-toggle,
.qc-answer .custom-toc-toggle{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  width:100%;margin:0;padding:14px 16px;
  border:0;border-bottom:1px solid transparent;background:var(--pen-wash);
  color:var(--ink);font:inherit;text-align:left;cursor:pointer;
  transition:background .15s ease,border-color .15s ease;
}
.custom-toc-wrapper.is-open .custom-toc-toggle{
  border-bottom-color:var(--hairline);
  background:linear-gradient(180deg,var(--pen-wash) 0%,var(--card) 100%);
}
.custom-toc-toggle:hover{background:var(--pen-wash);filter:brightness(0.98)}
.custom-toc-toggle:focus-visible{outline:2px solid var(--pen);outline-offset:-2px}
.custom-toc-toggle svg{display:none!important} /* legacy hamburger from older plugin */
.custom-toc-toggle__text{display:flex;flex-direction:column;gap:3px;min-width:0}
.custom-toc-toggle__eyebrow{
  font-family:var(--mono);font-size:10.5px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--pen);
}
.custom-toc-toggle__title{
  font-family:var(--display);font-size:16px;font-weight:600;letter-spacing:-.02em;line-height:1.2;color:var(--ink);
}
.custom-toc-toggle__chevron{
  flex:0 0 auto;width:10px;height:10px;margin-right:4px;
  border-right:2px solid var(--pen);border-bottom:2px solid var(--pen);
  transform:rotate(45deg);transition:transform .2s ease;opacity:.85;
}
.custom-toc-wrapper.is-open .custom-toc-toggle__chevron{
  transform:rotate(-135deg);margin-top:4px;
}
.custom-toc-list,
.qc-answer .custom-toc-list{
  display:none;padding:6px 8px 12px;background:var(--card);
}
.custom-toc-wrapper.is-open .custom-toc-list,
.custom-toc-wrapper.is-open .custom-toc-list[hidden]{
  display:block;animation:qcTocIn .22s ease;
}
@keyframes qcTocIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.custom-toc-list__items,
.custom-toc-list ul,
.qc-answer .custom-toc-list ul{
  list-style:none;margin:0;padding:0;counter-reset:qc-toc;
}
.custom-toc-list li,
.qc-answer .custom-toc-list li{
  margin:0;border-bottom:1px dashed var(--hairline);
}
.custom-toc-list li:last-child{border-bottom:0}
.custom-toc-list a,
.qc-answer .custom-toc-list a{
  display:grid;grid-template-columns:28px minmax(0,1fr);gap:10px;align-items:flex-start;
  padding:10px 10px;border-radius:9px;
  color:var(--ink);font-size:14px;font-weight:500;line-height:1.35;text-decoration:none;
  transition:background .15s ease,color .15s ease;
}
.custom-toc-list a:hover,
.qc-answer .custom-toc-list a:hover{
  background:var(--pen-wash);color:var(--pen);
}
.custom-toc-list__no{
  font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.04em;
  color:var(--ink-mute);padding-top:2px;
}
.custom-toc-list a:hover .custom-toc-list__no{color:var(--pen)}
.custom-toc-list__items > li{counter-increment:qc-toc}
.custom-toc-list__items > li .custom-toc-list__no::before{
  content:counter(qc-toc, decimal-leading-zero);
}
/* Fallback when old <ul> markup has no number span */
.custom-toc-list ul > li{counter-increment:qc-toc}
.custom-toc-list ul > li > a::before{
  content:counter(qc-toc, decimal-leading-zero);
  font-family:var(--mono);font-size:11px;font-weight:600;color:var(--ink-mute);
  min-width:28px;
}
.custom-toc-list__items > li > a::before{content:none}
.custom-toc-list .toc-level-3 a{padding-left:18px}
.custom-toc-list .toc-level-4 a{padding-left:28px}
.custom-toc-list .toc-level-5 a{padding-left:36px}
.custom-toc-list__label{min-width:0;overflow-wrap:anywhere;word-break:break-word}
.qc-answer .custom-toc-list a{color:var(--ink)} /* don't inherit answer-link pen for every row */

.qc-answer h2,.qc-answer h3,.qc-answer h4{
  margin:1.4em 0 .55em;overflow-wrap:anywhere;word-break:break-word;
}
/* Q-block / unit-panel chrome — don't inherit answer body heading margins */
.qc-answer .qc-qblock__head h2,
.qc-answer .qc-unit-panel__head h3{
  margin:0;
}
.qc-answer .qc-unit-panel__head h3{margin-top:2px}
.qc-answer h2{font-size:clamp(20px,2.4vw,26px)}
.qc-answer h3{font-size:clamp(17px,2vw,21px)}
.qc-answer p,.qc-answer li{overflow-wrap:anywhere;word-break:break-word}
.qc-answer ul,.qc-answer ol{padding-left:1.25em}
.qc-answer a{color:var(--pen);text-decoration:none}
.qc-answer img,.qc-answer figure,.qc-answer video,.qc-answer iframe{
  max-width:100%;height:auto;
}
.qc-answer pre,
.qc-answer .wp-block-code,
.qc-answer .wp-block-preformatted{
  max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:#1A1A1E;color:#F4F1EA;border-radius:12px;
  padding:14px 16px;margin:1em 0;font-family:var(--mono);font-size:13px;line-height:1.55;
  white-space:pre;
}
.qc-answer code{
  font-family:var(--mono);font-size:.92em;
  background:var(--paper);border:1px solid var(--hairline);border-radius:6px;
  padding:.12em .4em;overflow-wrap:anywhere;word-break:break-word;
}
.qc-answer pre code{
  background:transparent;border:0;padding:0;color:inherit;font-size:inherit;
  white-space:inherit;overflow-wrap:normal;word-break:normal;
}
.qc-answer .wp-block-table,
.qc-answer .table-wrap,
.qc-answer table:not(.shop_table):not(.woocommerce-table){
  display:block;width:100%;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;
  border-collapse:collapse;margin:1em 0;
}
.qc-answer table:not(.shop_table):not(.woocommerce-table){display:block}
.qc-answer th,.qc-answer td{
  padding:10px 12px;border:1px solid var(--hairline-strong);
  text-align:left;vertical-align:top;white-space:nowrap;
}
.qc-answer .shop_table th,
.qc-answer .shop_table td,
.qc-answer .woocommerce-table th,
.qc-answer .woocommerce-table td{
  white-space:normal;border:0;
}
.qc-answer th{background:var(--paper);font-weight:600}
.qc-answer .ez-toc-v2,.qc-answer .ez-toc,.qc-answer nav.toc{
  max-width:100%;overflow-x:auto;margin:0 0 1.25em;
}
.qc-breadcrumbs{
  font-size:13.5px;color:var(--ink-mute);margin-bottom:18px;line-height:1.55;
  overflow-wrap:anywhere;word-break:break-word;
}
.qc-breadcrumbs a:hover{color:var(--pen)}
.qc-list{list-style:none;margin:0;padding:0}
.qc-list li{border-bottom:1px dashed var(--hairline)}
.qc-list a{display:block;padding:14px 4px;font-weight:500;color:var(--pen);text-decoration:none}
.qc-list a:hover{color:var(--pen-deep)}
.year-badge{font-family:var(--mono);font-size:11px;color:var(--pen);margin-left:8px}

.paper-container{padding:40px 0 72px}
/* Title top gap comes from breadcrumb margin-bottom (same on /university and /papers) */
.paper-title{font-size:clamp(26px,3vw,38px);margin:0 0 16px}
.paper-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:20px}
.paper-btn,.paper-card,.related-btn{display:inline-flex;margin:0 8px 10px 0;padding:10px 14px;border:1.5px solid var(--hairline-strong);border-radius:10px;background:var(--card);font-weight:600;font-size:14px}
.paper-btn:hover,.related-btn:hover{border-color:var(--pen);color:var(--pen)}
.paper-card{padding:20px;border:1px solid var(--hairline);border-radius:var(--radius);box-shadow:var(--shadow)}
.paper-card h3{font-size:17px;margin:0 0 8px}
.delete-btn,.view-btn{font-size:13px;padding:8px 12px;border-radius:8px;border:1px solid var(--hairline-strong);background:var(--paper);cursor:pointer;margin-right:8px}
.delete-btn:hover{background:var(--pen-wash);border-color:var(--pen);color:var(--pen)}
.subject-grid,.unit-buttons{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin:20px 0}
.subject-card,.unit-buttons a{padding:18px;border:1px solid var(--hairline);border-radius:var(--radius);background:var(--card)}
.breadcrumbs,.quescol-breadcrumb,.quescol-breadcrumbs{
  font-size:13.5px;color:var(--ink-mute);margin:0 0 14px;line-height:1.55;
  overflow-wrap:anywhere;word-break:break-word;
}
.breadcrumbs a,.quescol-breadcrumb a,.quescol-breadcrumbs a{color:var(--ink-mute)}
.breadcrumbs a:hover,.quescol-breadcrumb a:hover{color:var(--pen)}
.faq-section{margin-top:40px}
.faq-title{font-size:22px;margin-bottom:16px}
.faq-item{border:1px solid var(--hairline);border-radius:10px;margin-bottom:10px;overflow:hidden;background:var(--card)}
.faq-question{width:100%;text-align:left;padding:14px 16px;border:0;background:var(--paper);font:inherit;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;gap:12px}
.faq-answer{display:none;padding:0 16px 14px;color:var(--ink-mute);font-size:14.5px}
.faq-item.active .faq-answer{display:block}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.related-section{margin-top:36px}
.related-links{display:flex;flex-wrap:wrap;gap:8px}
.qc-admin-edit{margin-bottom:20px}
.qc-admin-order{width:70px;margin-right:8px;padding:6px 8px;border:1px solid var(--hairline-strong);border-radius:8px}
.qc-admin-title{width:min(100%,420px);padding:6px 8px;border:1px solid var(--hairline-strong);border-radius:8px;margin-right:8px}
#pdfDelayPopup{position:fixed;inset:0;background:rgba(26,26,30,.55);z-index:1100;display:none;place-items:center;padding:20px}
#pdfDelayPopup[style*="block"]{display:grid!important}
.pdf-popup-box{background:var(--card);border-radius:16px;padding:28px;max-width:420px;width:100%;text-align:center;position:relative;box-shadow:var(--shadow-lift)}
#pdfPopupClose{position:absolute;right:12px;top:10px;cursor:pointer;font-size:18px}
.pdf-disabled{pointer-events:none;opacity:.45}
.pdf-active{animation:qcPulse 1s ease infinite}
@keyframes qcPulse{50%{box-shadow:0 0 0 6px var(--pen-wash)}}
/* AdSense: avoid light-grey empty placeholders flashing then vanishing */
.qc-adsense-slot{min-height:0;overflow:hidden;margin:0 auto}
.qc-adsense-slot[hidden]{display:none!important}
.qc-adsense-slot:not(.is-filled) ins.adsbygoogle{opacity:0;min-height:0!important;height:0!important;overflow:hidden}
.qc-adsense-slot.is-filled ins.adsbygoogle{opacity:1;min-height:120px}
ins.adsbygoogle[data-adsbygoogle-status="unfilled"]{display:none!important;height:0!important;min-height:0!important}
.paper-download-btn,.qc-pdf-btn{display:inline-flex;margin-top:16px}

/* Single paper download page */
.qc-paper{padding:28px 0 72px}
.qc-paper .breadcrumbs{margin-bottom:22px}
.qc-paper__hero{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(240px,.7fr);
  gap:28px;align-items:stretch;
  background:var(--card);border:1px solid var(--hairline);border-radius:20px;
  box-shadow:var(--shadow);padding:28px 28px 30px;overflow:hidden;
  position:relative;
}
.qc-paper__hero::before{
  content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--pen);
}
.qc-paper__hero-main{min-width:0;padding-left:8px}
.qc-paper__title{
  font-size:clamp(24px,3vw,34px);line-height:1.15;margin:10px 0 0;
  overflow-wrap:anywhere;word-break:break-word;
}
.qc-paper__chips{
  list-style:none;margin:18px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px;
}
.qc-paper__chips li{
  font-family:var(--mono);font-size:12px;color:var(--ink-mute);
  background:var(--paper);border:1px solid var(--hairline-strong);
  border-radius:999px;padding:6px 11px;
}
.qc-paper__hero-aside{
  display:flex;flex-direction:column;justify-content:center;gap:12px;
  background:var(--paper);border:1px solid var(--hairline);border-radius:16px;
  padding:22px 20px;min-width:0;
}
.qc-paper__session{
  font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--pen);text-transform:uppercase;
}
.qc-paper__hero-aside .paper-download-btn,
.qc-paper__hero-aside .qc-pdf-btn{
  margin-top:0;width:100%;justify-content:center;gap:10px;
  text-decoration:none!important;
}
.qc-paper__hero-aside .qc-solved-cta{
  width:100%;justify-content:center;text-decoration:none!important;margin:0;
  display:inline-flex;align-items:center;cursor:pointer;font:inherit;
}
.qc-paper__hint,.qc-paper__missing{
  margin:0;font-size:13px;color:var(--ink-mute);line-height:1.4;
}

/* Solved paper hub */
.qc-solved{max-width:900px;margin:0 auto;padding:24px 0 48px}
.qc-solved__hero{
  background:var(--card);border:1px solid var(--hairline);border-radius:16px;
  padding:28px 26px;box-shadow:var(--shadow);margin-bottom:28px;
}
.qc-solved__title{margin:8px 0 14px;font-size:clamp(22px,3vw,32px);line-height:1.2}
.qc-solved__chips{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.qc-solved__chips li{
  background:var(--paper);border:1px solid var(--hairline-strong);
  border-radius:999px;padding:6px 11px;font-size:13px;
}
.qc-solved__actions{display:flex;flex-wrap:wrap;gap:10px}
.qc-solved__actions .btn{text-decoration:none!important}
.qc-solved__list h2{margin:0 0 8px;font-size:1.25rem}
.qc-solved__ol{margin:16px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.qc-solved__ol li,
.qc-solved__row{
  display:flex;flex-wrap:nowrap;align-items:center;gap:10px 14px;
  padding:14px 16px;background:var(--card);border:1px solid var(--hairline);
  border-radius:12px;
}
.qc-solved__ol a,
.qc-solved__link{text-decoration:none;color:inherit;font-weight:600;flex:1;min-width:0}
.qc-solved__ol a:hover,
.qc-solved__link:hover{color:var(--pen)}
.qc-solved__qnum{color:var(--ink-mute);font-family:var(--mono);margin-right:4px}
.qc-solved__aside{flex:none;display:flex;align-items:center;gap:10px;margin-left:auto}
.qc-solved__years{font-size:12px;color:var(--ink-mute);font-family:var(--mono);white-space:nowrap}
.qc-solved__years--empty{opacity:.45}
.qc-solved__gate .meta{margin:0 0 18px;color:var(--ink-mute);max-width:42ch}
@media (max-width:640px){
  .qc-qrow__main{flex-wrap:wrap}
  .qc-qrow__aside{width:100%;margin-left:32px;justify-content:flex-end}
  .qc-solved__row{flex-wrap:wrap}
  .qc-solved__aside{width:100%;margin-left:0;justify-content:flex-end}
}

.qc-paper__related{margin-top:40px}
.qc-paper__related-head{max-width:720px;margin-bottom:18px}
.qc-paper__related-head h2{
  font-size:clamp(20px,2.4vw,26px);margin:8px 0 8px;line-height:1.2;
}
.qc-paper__related-head p{margin:0;color:var(--ink-mute);font-size:15px}
.qc-paper__related-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.qc-paper__related-row{
  display:grid;grid-template-columns:120px minmax(0,1fr) auto;
  gap:14px;align-items:center;
  padding:16px 18px;background:var(--card);
  border:1px solid var(--hairline);border-radius:14px;
  box-shadow:var(--shadow);text-decoration:none!important;color:inherit;
  transition:.18s;
}
.qc-paper__related-row:hover{
  transform:translateY(-2px);border-color:var(--hairline-strong);box-shadow:var(--shadow-lift);
}
.qc-paper__related-session{
  font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.03em;
  color:var(--pen);background:var(--pen-wash);border-radius:8px;
  padding:8px 10px;text-align:center;white-space:nowrap;
}
.qc-paper__related-title{
  color:var(--ink);font-weight:600;font-size:15px;line-height:1.35;
  overflow-wrap:anywhere;word-break:break-word;
}
.qc-paper__related-row:hover .qc-paper__related-title{color:var(--pen)}
.qc-paper__related-go{color:var(--pen);font-weight:700;font-size:18px;line-height:1}

/* Premium archive / university choice cards */
.paper-container .lead{color:var(--ink-mute);max-width:640px;margin:0 0 28px}
.qc-archive-panel{margin-top:8px}
.qc-archive-panel__head{display:flex;gap:14px;align-items:flex-start;margin-bottom:22px}
.qc-archive-panel__head h2{font-size:22px;margin:0 0 4px}
.qc-archive-panel__head p{margin:0;color:var(--ink-mute);font-size:14.5px}
.qc-archive-panel__tag{
  width:34px;height:34px;border-radius:9px;flex:none;
  display:grid;place-items:center;background:var(--pen-wash);color:var(--pen);
  font-family:var(--mono);font-weight:700;font-size:13px;
}
.qc-choice-grid,.university-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:14px;margin:18px 0 28px;
}
.qc-choice-card,.university-card{
  display:flex;flex-direction:column;gap:8px;
  padding:20px 18px;background:var(--card);
  border:1px solid var(--hairline-strong);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:.18s;min-height:118px;
}
.qc-choice-card:hover,.university-card:hover{
  transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:var(--pen);
}
.qc-choice-card__label,.qc-choice-card .qc-choice-card__label{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--pen);
}
.qc-choice-card strong,.qc-choice-card h3,.university-card h3{
  font-family:var(--display);font-size:18px;line-height:1.2;margin:0;font-weight:600;
}
.qc-choice-card .go,.university-card>span,.university-card .go{
  margin-top:auto;color:var(--pen);font-weight:600;font-size:14px;
}
.uni-card{
  display:flex;flex-direction:column;gap:12px;min-height:168px;
}
.uni-card .uni-badge{margin-bottom:2px}
.uni-card .tags{margin-top:2px}
.uni-card .go{margin-top:auto}
.seo-intro{
  background:var(--card);border:1px solid var(--hairline);border-radius:14px;
  padding:20px 22px;margin:0 0 24px;color:var(--ink-mute);font-size:15px;
  box-shadow:var(--shadow);
}
.seo-intro p{margin:0 0 10px}
.seo-intro p:last-of-type{margin-bottom:0}
.seo-intro ul{margin:12px 0 0;padding-left:18px}
.seo-intro li{margin-bottom:4px}
.paper-subtitle{font-size:20px;margin:8px 0 16px}
.paper-grid .paper-card{
  display:flex;flex-direction:column;gap:10px;min-height:140px;
  background:var(--card);border:1px solid var(--hairline-strong);
}
.paper-card .paper-meta{font-family:var(--mono);font-size:12px;color:var(--ink-mute)}
.paper-card .paper-actions{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap}
.paper-card .view-btn{
  display:inline-flex;align-items:center;padding:9px 14px;border-radius:8px;
  background:var(--ink-solid);color:var(--on-ink);border:0;font-weight:600;font-size:13px;
}
.paper-card .view-btn:hover{background:var(--pen)}
.qc-empty{
  padding:22px 20px;border:1.5px dashed var(--hairline-strong);border-radius:14px;
  color:var(--ink-mute);background:rgba(255,255,255,.35);margin:8px 0 24px;
}
.qc-module-switch{margin:0 0 28px}
.qc-module-switch__hint{
  margin:0 0 10px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-mute);
}
.qc-module-switch__grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;
}
.qc-module-switch__card{
  display:flex;flex-direction:column;gap:6px;min-height:120px;
  padding:16px 18px;border-radius:14px;background:var(--card);
  border:1px solid var(--hairline-strong);box-shadow:var(--shadow);
  text-decoration:none!important;color:inherit;transition:.18s;
}
.qc-module-switch__card:hover{
  transform:translateY(-2px);border-color:var(--pen);box-shadow:var(--shadow-lift);
}
.qc-module-switch__card.is-active{
  border-color:var(--pen);background:var(--pen-wash);
}
.qc-module-switch__label{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--pen);
}
.qc-module-switch__card strong{
  font-family:var(--display);font-size:17px;line-height:1.25;font-weight:600;
}
.qc-module-switch__meta{font-size:13px;color:var(--ink-mute);line-height:1.35}
.qc-module-switch__go{margin-top:auto;font-weight:700;font-size:13px;color:var(--pen)}
@media(max-width:640px){
  .qc-module-switch__grid{grid-template-columns:1fr}
}
.qc-section-head{margin:28px 0 8px}
.qc-section-head h2{font-size:22px;margin:0 0 6px}
.qc-section-head p{margin:0;color:var(--ink-mute);font-size:14.5px}
.related-section{padding:18px 0 4px;border-top:1px solid var(--hairline);margin-top:28px}
.related-section h2{
  margin:0 0 14px;font-size:clamp(20px,2.4vw,24px);line-height:1.25;
}
.related-links{
  display:flex;flex-wrap:wrap;gap:8px 10px;margin:0;
}
.related-links a,.related-btn{
  display:inline-flex;margin:0;padding:10px 14px;border:1.5px solid var(--hairline-strong);
  border-radius:10px;background:var(--card);font-weight:600;font-size:14px;
}
.related-links a:hover,.related-btn:hover{border-color:var(--pen);color:var(--pen)}
.qc-uni-main h1,.qc-uni-main h2{margin-top:0}
.qc-uni-main h3{margin-top:28px}
.qc-uni-main .qc-topic-heading:first-of-type{margin-top:18px}
.subject-hub,.qc-uni-main .content-area{max-width:100%}

.qc-premium-teaser{position:relative}
.qc-premium-gate{
  position:relative;margin:8px 0 8px;padding-top:0;
}
.qc-premium-gate__fade{
  pointer-events:none;height:88px;margin-top:-88px;position:relative;z-index:1;
  background:linear-gradient(180deg,rgba(255,255,255,0),var(--card) 78%);
}
.qc-premium-gate__card{
  position:relative;z-index:2;text-align:center;
  background:linear-gradient(180deg,#fff,var(--pen-wash));
  border:1.5px solid #f0c7c2;border-radius:16px;padding:28px 24px;
  box-shadow:var(--shadow);
}
.qc-premium-gate__kicker{
  font-family:var(--mono);font-size:12px;color:var(--pen);
  letter-spacing:.08em;text-transform:uppercase;margin:0 0 10px;
}
.qc-premium-gate__title{
  font-family:var(--display);font-size:clamp(20px,2.4vw,26px);
  margin:0 0 10px;line-height:1.2;
}
.qc-premium-gate__text{
  margin:0 auto 18px;max-width:420px;color:var(--ink-mute);font-size:15px;
}
.qc-premium-gate__actions{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
}

/* Search results */
.qc-search{padding:36px 0 72px;width:100%;box-sizing:border-box}
.qc-search__hero{max-width:720px;margin-bottom:36px}
.qc-search__hero .lead{color:var(--ink-mute);margin:10px 0 0}
.qc-search__form{margin-top:22px;max-width:540px}
.qc-search__subjects{margin-bottom:40px}
.qc-search__subjects h2,
.qc-search__results h2{
  font-size:clamp(20px,2.2vw,26px);margin:0 0 16px;
}
.qc-search__subject-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;
}
.qc-search__subject-card{
  display:flex;flex-direction:column;gap:8px;
  padding:18px 16px;background:var(--card);
  border:1px solid var(--hairline);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:.18s;min-height:132px;
}
.qc-search__subject-card:hover{
  transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:var(--hairline-strong);
}
.qc-search__subject-kicker{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--pen);
}
.qc-search__subject-card strong{
  font-family:var(--display);font-size:18px;line-height:1.2;color:var(--ink);
}
.qc-search__subject-meta{font-size:13px;color:var(--ink-mute)}
.qc-search__subject-card .go{margin-top:auto;color:var(--pen);font-weight:600}
.qc-search__grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;
}
.qc-search__card{
  display:flex;flex-direction:column;gap:10px;min-height:168px;
  padding:20px 18px;background:var(--card);
  border:1px solid var(--hairline);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:.18s;color:inherit;text-decoration:none;
}
.qc-search__card:hover{
  transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:var(--hairline-strong);
}
.qc-search__card-top{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.qc-search__tag{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--pen);background:var(--pen-wash);padding:4px 8px;border-radius:6px;
}
.qc-search__premium{
  font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;
  color:var(--ink);background:var(--paper);border:1px solid var(--hairline-strong);
  padding:4px 8px;border-radius:6px;
}
.qc-search__card-title{
  font-family:var(--display);font-size:17px;line-height:1.25;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  color:var(--ink);text-decoration:none;
}
.qc-search__card-meta{
  font-family:var(--mono);font-size:12px;color:var(--ink-mute);
}
.qc-search__excerpt{
  margin:0;font-size:14px;color:var(--ink-mute);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.qc-search__card .go{margin-top:auto;color:var(--pen);font-weight:600}
.qc-search__pagination{margin-top:28px}
.qc-search__pagination .nav-links{
  display:flex!important;flex-wrap:wrap;gap:8px;align-items:center;
  position:static;background:transparent;box-shadow:none;border:0;padding:0;max-height:none;
}
.qc-search__pagination .page-numbers{
  display:inline-flex;padding:8px 12px;border:1.5px solid var(--hairline-strong);
  border-radius:10px;background:var(--card);font-weight:600;font-size:14px;
}
.qc-search__pagination .page-numbers.current,
.qc-search__pagination a.page-numbers:hover{
  border-color:var(--pen);color:var(--pen);background:var(--pen-wash);
}
.qc-search__empty{padding:24px}
.qc-search__empty-chips{margin-top:16px}

.qc-modal[hidden]{display:none!important}
.qc-modal{
  position:fixed;inset:0;background:rgba(26,26,30,.48);z-index:1000;
  display:flex;align-items:flex-start;justify-content:center;
  padding:max(12px,env(safe-area-inset-top)) 14px max(12px,env(safe-area-inset-bottom));
  overflow-y:auto;-webkit-overflow-scrolling:touch;
}
html.qc-modal-open,body.qc-modal-open{overflow:hidden}
.qc-modal__box{
  background:var(--card);border-radius:14px;padding:22px 20px 18px;
  width:min(400px,100%);position:relative;box-shadow:var(--shadow-lift);
  margin:auto; /* centers when shorter than viewport; scrolls when taller */
}
.qc-login-box{
  padding:28px 22px 26px;
  max-height:none;
}
.qc-modal__close{
  position:absolute;right:12px;top:12px;border:0;background:none;
  font-size:16px;cursor:pointer;color:var(--ink-mute);line-height:1;padding:4px 6px;z-index:2;
}
.qc-login-tabs{display:flex;gap:6px;margin:0 32px 14px 0}
.qc-login-tabs button{
  flex:1;border:1.5px solid var(--hairline-strong);background:var(--paper);
  border-radius:8px;padding:9px 12px;font-size:13.5px;font-weight:600;cursor:pointer;
  color:var(--ink-mute);transition:background .15s ease,border-color .15s ease,color .15s ease;
}
.qc-login-tabs button:hover:not(.is-active){
  border-color:var(--pen);color:var(--ink);background:var(--pen-wash);
}
.qc-login-tabs button.is-active{
  background:var(--pen);color:#fff;border-color:var(--pen);
  box-shadow:0 8px 22px -12px var(--pen);
}
.qc-auth-form label{display:block;margin-bottom:10px;font-size:13px}
.qc-auth-form input[type=text],
.qc-auth-form input[type=email],
.qc-auth-form input[type=password]{
  width:100%;margin-top:4px;padding:10px 12px;border:1.5px solid var(--hairline-strong);
  border-radius:9px;font:inherit;font-size:15px;box-sizing:border-box;
}
.qc-auth-form .btn-block{margin-top:6px;padding:12px 16px;font-size:14.5px}
.qc-auth-hint{margin:0 0 12px;font-size:12.5px;color:var(--ink-mute);line-height:1.45}
.qc-check{display:flex!important;align-items:center;gap:8px;margin-bottom:10px!important}
.qc-auth-row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin:0 0 12px;flex-wrap:wrap;
}
.qc-auth-row .qc-check{margin-bottom:0!important}
.qc-forgot-link{
  border:0;background:none;padding:0;font:inherit;font-size:13px;font-weight:600;
  color:var(--pen);cursor:pointer;text-decoration:none;
}
.qc-forgot-link:hover{text-decoration:underline}
.qc-auth-msg{background:var(--pen-wash);color:var(--pen-deep);padding:8px 10px;border-radius:8px;font-size:13px;margin:0 0 10px}
.qc-google-wrap{width:100%;margin:0 0 4px}
.qc-google-slot{
  position:relative;width:100%;min-height:44px;
}
.qc-google-native{
  position:absolute;inset:0;z-index:1;
  display:flex;align-items:center;justify-content:center;gap:10px;
  padding:10px 14px;
  border:1.5px solid var(--hairline-strong);border-radius:10px;
  background:var(--paper);color:var(--ink);
  font-size:14.5px;font-weight:600;line-height:1.2;
  pointer-events:none;box-sizing:border-box;
  transition:border-color .15s ease,background .15s ease,box-shadow .15s ease;
}
.qc-google-native__icon{flex:none;width:20px;height:20px}
.qc-google-btn{
  position:absolute;inset:0;z-index:2;
  width:100%!important;height:100%!important;min-height:44px;
  opacity:0;overflow:hidden;cursor:pointer;
}
.qc-google-btn > div{
  width:100%!important;height:100%!important;min-height:44px!important;margin:0!important;
}
.qc-google-btn iframe{
  width:100%!important;height:44px!important;min-height:44px!important;margin:0!important;
}
.qc-google-slot:hover .qc-google-native{
  border-color:var(--pen);background:var(--pen-wash);
}
.qc-google-slot:focus-within .qc-google-native{
  border-color:var(--pen);box-shadow:0 0 0 3px var(--pen-wash);
}
.qc-auth-divider{
  display:flex;align-items:center;gap:10px;margin:12px 0 14px;
  color:var(--ink-mute);font-size:12px;font-weight:500;
}
.qc-auth-divider::before,.qc-auth-divider::after{
  content:"";flex:1;height:1px;background:var(--hairline-strong);
}
.qc-auth-divider span{flex:none}
.qc-modal__actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}

.qc-auth-page{padding:48px 0 72px;display:flex;justify-content:center}
.qc-auth-page__card{
  width:min(440px,100%);background:var(--card);border:1.5px solid var(--hairline-strong);
  border-radius:18px;padding:32px 28px 28px;box-shadow:var(--shadow);
}
.qc-auth-page__card h1{
  font-size:clamp(24px,3vw,30px);margin:10px 0 0;letter-spacing:-.02em;
}
.qc-auth-page__card .lead{
  color:var(--ink-mute);font-size:15.5px;margin:10px 0 20px;line-height:1.45;
}
.qc-auth-page__foot{margin:16px 0 0;font-size:14px}
.qc-auth-page__foot a,.qc-auth-page__foot .qc-forgot-link{color:var(--pen);font-weight:600}

@media(max-height:720px){
  .qc-login-box{padding:22px 20px 22px}
  .qc-login-tabs{margin-bottom:12px}
  .qc-auth-hint{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
  .qc-auth-form label{margin-bottom:8px}
  .qc-auth-divider{margin:10px 0 12px}
}

/* Single post — related questions */
.qc-related-posts{
  margin-top:40px;padding-top:36px;border-top:1px solid var(--hairline);
}
.qc-related-posts__head{margin-bottom:22px;max-width:640px}
.qc-related-posts__head h2{font-size:clamp(22px,2.4vw,28px);margin:10px 0 8px}
.qc-related-posts__head p{margin:0;color:var(--ink-mute);font-size:15px}
.qc-related-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;
}
.qc-related-card{
  display:flex;flex-direction:column;gap:10px;min-height:148px;
  padding:20px 18px;background:var(--card);
  border:1px solid var(--hairline);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:.18s;color:inherit;text-decoration:none;
  height:auto;width:auto;max-width:none;
}
.qc-related-card:hover{
  transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:var(--hairline-strong);
}
.qc-related-card__top{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.qc-related-card__tag{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--pen);background:var(--pen-wash);padding:4px 8px;border-radius:6px;
}
.qc-related-card__premium{
  font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;
  color:var(--ink);background:var(--paper);border:1px solid var(--hairline-strong);
  padding:4px 8px;border-radius:6px;
}
.qc-related-card__title{
  font-family:var(--display);font-size:17px;line-height:1.25;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.qc-related-card__meta{
  font-family:var(--mono);font-size:12px;color:var(--ink-mute);margin-top:auto;
}
.qc-related-card .go{margin-top:4px;color:var(--pen);font-weight:600;text-decoration:none}
.qc-related-posts__foot{margin-top:22px}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media(max-width:960px){
  /* Global page gutter on tablet + phone — keep university/papers widths aligned */
  :root{ --qc-page-gutter: 6px; }
  .wrap{
    padding-left:var(--qc-page-gutter);
    padding-right:var(--qc-page-gutter);
  }
  .hero{padding:48px 0 56px}
  .hero.wrap{padding:48px var(--qc-page-gutter) 56px}
  .hero h1{font-size:clamp(30px,8vw,42px);margin-top:18px}
  .hero p.lead{font-size:16.5px;margin-top:16px}
  .hero-grid{gap:36px}
  .hero-trust{gap:14px 18px;margin-top:22px}
  form.search{margin-top:22px;flex-wrap:wrap;padding:14px;gap:10px 12px;align-items:center}
  form.search svg{flex:none;align-self:center}
  form.search input{
    flex:1 1 0;min-width:0;width:auto;
    min-height:48px;padding:12px 4px;font-size:16px;
  }
  form.search .btn{
    flex:1 1 100%;width:100%;
    min-height:52px;padding:15px 22px;justify-content:center;
  }
  .nav-in{height:62px;gap:10px}
  .nav-cta{gap:8px}
  .nav-dashboard{font-size:13.5px}
  .qc-theme-toggle{width:36px;height:36px}
  .qc-nav-icon{width:36px;height:36px}
  .qc-user-menu__btn{min-width:42px;height:36px;padding:0 6px;gap:6px}
  .qc-user-menu__avatar{width:20px;height:20px;font-size:11px}
  .hero-grid,.prep-grid,.qc-layout{grid-template-columns:1fr}
  .qc-layout{gap:16px;padding:24px var(--qc-page-gutter) 48px}
  /* Combos that used to zero .wrap side/top padding (.paper-container / .qc-layout) */
  .wrap.paper-container,
  .wrap.qc-layout,
  .paper-container.qc-layout{
    padding-top:24px;
    padding-left:var(--qc-page-gutter);
    padding-right:var(--qc-page-gutter);
    padding-bottom:48px;
  }
  /* Hubs / shop / homepage bands — never wipe .wrap side gutter */
  .wrap.qc-hub__hero,
  .wrap.qc-shop,
  body.home .band.wrap{
    padding-left:var(--qc-page-gutter);
    padding-right:var(--qc-page-gutter);
  }
  /* Main content only in flow; unit syllabus opens from a right-edge tab */
  .qc-main{order:1;min-width:0}
  .qc-sidebar{order:2;position:static;margin-top:4px}
  .qc-answer{padding:20px 18px;border-radius:14px}
  .qc-related-grid{grid-template-columns:1fr 1fr}

  /*
   * Mobile unit drawer — right-edge "Unit" / "Topics" tab.
   * Only when new toggle markup exists (data-qc-sidebar).
   */
  .qc-layout > .sidebar-wrapper.qc-sidebar:has([data-qc-sidebar]){
    position:fixed;inset:0;z-index:200;
    width:auto;height:auto;margin:0;padding:0;
    border:0;background:transparent;pointer-events:none;order:0;
  }
  .qc-layout .qc-sidebar[data-qc-sidebar]{
    position:fixed;
    inset:0;
    z-index:200;
    width:auto;height:auto;margin:0;padding:0;
    border:0;background:transparent;
    pointer-events:none;
    order:0;
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail{
    padding:0;overflow:visible;border:0;background:transparent;box-shadow:none;
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__toggle{
    display:inline-flex!important;align-items:center;justify-content:center;
    pointer-events:auto;
    position:fixed;right:0;top:110px;transform:none;
    z-index:202;
    width:auto;min-width:0;margin:0;
    padding:18px 9px;
    border:1.5px solid var(--hairline-strong);border-right:0;
    border-radius:12px 0 0 12px;
    background:var(--card);color:var(--pen);
    box-shadow:var(--shadow-lift);
    writing-mode:vertical-rl;text-orientation:mixed;
    font:inherit;cursor:pointer;letter-spacing:.12em;
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__fab-label{
    display:block;font-family:var(--display);font-size:13px;font-weight:700;
    text-transform:uppercase;line-height:1;
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__toggle-label,
  .qc-sidebar[data-qc-sidebar] .qc-rail__toggle-action{display:none!important}
  .qc-sidebar[data-qc-sidebar].is-open .qc-rail__toggle{opacity:0;pointer-events:none}

  .qc-sidebar[data-qc-sidebar]::before{
    content:"";position:fixed;inset:0;z-index:201;
    background:rgba(20,20,24,.42);opacity:0;pointer-events:none;
    transition:opacity .2s ease;
  }
  .qc-sidebar[data-qc-sidebar].is-open::before{
    opacity:1;pointer-events:auto;
  }

  .qc-rail-collapse{display:none!important}
  /* × sits beside subject name — not under the sticky nav */
  .qc-sidebar[data-qc-sidebar] .qc-rail__subject-row{
    display:flex!important;align-items:flex-start;gap:10px;
    margin-bottom:14px;
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__subject-row .qc-rail__subject{
    flex:1;min-width:0;margin-bottom:0;
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__drawer-close{
    display:inline-flex!important;align-items:center;justify-content:center;
    flex:none;width:40px;height:40px;margin:0;padding:0;margin-top:0;
    border:1.5px solid var(--hairline-strong);border-radius:10px;
    background:var(--paper);color:var(--ink);font-size:28px;line-height:1;
    cursor:pointer;-webkit-tap-highlight-color:transparent;
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__drawer-close:hover,
  .qc-sidebar[data-qc-sidebar] .qc-rail__drawer-close:focus-visible{
    border-color:var(--pen);color:var(--pen);background:var(--pen-wash);
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__drawer{
    display:block!important;
    pointer-events:auto;
    /* Start below sticky mobile nav (62px) so close/heading stay visible */
    position:fixed;top:62px;right:0;bottom:0;
    z-index:203;
    width:min(340px,88vw);
    margin:0;padding:16px 14px 24px;
    background:var(--card);
    border-left:1px solid var(--hairline-strong);
    box-shadow:var(--shadow-lift);
    transform:translateX(100%);
    transition:transform .22s ease;
    overflow:auto;-webkit-overflow-scrolling:touch;
  }
  .qc-sidebar[data-qc-sidebar].is-open .qc-rail__drawer{
    transform:translateX(0);
  }
  .qc-sidebar[data-qc-sidebar] .qc-rail__head{display:block!important;margin-bottom:12px}
  .qc-sidebar[data-qc-sidebar] .qc-rail__panel{display:block!important}
  .qc-sidebar[data-qc-sidebar] .qc-rail__nav{padding-left:0}
  .qc-sidebar[data-qc-sidebar] .qc-rail__foot{padding-left:0}

  body.qc-unit-drawer-open{overflow:hidden}

  .subjects,.unis,.posts{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .syl{columns:2}
  .stats{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .menu-btn{display:block;margin-left:4px}
  .nav-cta{margin-left:auto}
  header.nav.is-mobile-open .nav-links{top:62px;max-height:calc(100vh - 62px)}
  .nav-links>li.menu-item-has-children:first-child>ul.sub-menu{columns:1;width:auto}
  .how,.prep,.cta-band{padding:40px 26px}
}
@media(max-width:600px){
  /* Only sides — never zero vertical (papers page was flush under nav) */
  .wrap{
    padding-left:var(--qc-page-gutter, 6px);
    padding-right:var(--qc-page-gutter, 6px);
  }
  .hero{padding:36px 0 48px}
  .hero.wrap{padding:36px var(--qc-page-gutter, 6px) 48px}
  .band{padding-top:60px;padding-bottom:60px}
  .subjects,.unis,.posts,.stats{grid-template-columns:1fr}
  .syl{columns:1}
  .nav-cta .nav-login,
  .nav-cta .nav-dashboard{display:none}
  .nav-cta{margin-left:auto}
  .menu-btn{margin-left:4px}
  header.nav.is-mobile-open .nav-links{top:62px;max-height:calc(100vh - 62px)}
  .qc-layout{padding:18px var(--qc-page-gutter, 6px) 40px;gap:16px}
  /* Match university / papers page top spacing under sticky nav */
  .wrap.paper-container,
  .wrap.qc-layout,
  .paper-container.qc-layout{
    padding-top:18px;
    padding-left:var(--qc-page-gutter, 6px);
    padding-right:var(--qc-page-gutter, 6px);
    padding-bottom:40px;
  }
  .wrap.qc-hub__hero,
  .wrap.qc-shop,
  body.home .band.wrap{
    padding-left:var(--qc-page-gutter, 6px);
    padding-right:var(--qc-page-gutter, 6px);
  }
  .qc-main h1{font-size:clamp(22px,7vw,28px);line-height:1.2}
  .qc-answer{padding:16px 14px;border-radius:12px}
  .qc-answer pre,
  .qc-answer .wp-block-code,
  .qc-answer .wp-block-preformatted{
    font-size:12px;padding:12px;border-radius:10px;
    margin-left:-2px;margin-right:-2px;
  }
  .qc-answer th,.qc-answer td{padding:8px 10px;font-size:13px}
  .qc-related-grid{grid-template-columns:1fr}
  .qc-related-card{min-height:0;padding:16px}
  .qc-breadcrumbs{font-size:12.5px;margin-bottom:14px}
  .qc-search{padding:18px 0 48px}
  .qc-search__subject-grid,
  .qc-search__grid{grid-template-columns:1fr}
  .qc-paper__hero{grid-template-columns:1fr;padding:22px}
  .qc-paper__related-row{grid-template-columns:96px minmax(0,1fr);gap:10px 12px}
  .qc-paper__related-go{display:none}
}

/* Student hub + report error */
.qc-hub{padding:36px 0 72px}
.qc-hub--embedded{padding:0 0 24px;max-width:100%}
.tutor-dashboard-content .qc-hub--embedded .qc-hub__hero{margin-bottom:20px}
.tutor-dashboard-content .qc-hub--embedded .qc-hub__panel{box-shadow:none}
.qc-hub__hero{margin-bottom:28px}
.qc-hub--embedded .qc-hub__hero{max-width:720px}
.qc-hub__hero .lead{color:var(--ink-mute);margin:10px 0 0}
.qc-hub__coins{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;margin-top:18px}
.qc-hub__coin-pill{
  font-family:var(--mono);font-size:13px;font-weight:600;
  color:var(--pen);background:var(--pen-wash);border-radius:999px;padding:8px 14px;
}
.qc-hub__coin-hint{font-size:14px;color:var(--ink-mute)}
.qc-hub__tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.qc-hub__tab{
  padding:10px 16px;border-radius:10px;border:1.5px solid var(--hairline-strong);
  background:var(--card);font-weight:600;font-size:14px;text-decoration:none;color:var(--ink);
}
.qc-hub__tab.is-active,.qc-hub__tab:hover{border-color:var(--pen);color:var(--pen);background:var(--pen-wash)}
.qc-hub__panel{
  background:var(--card);border:1px solid var(--hairline);border-radius:16px;
  box-shadow:var(--shadow);padding:28px 32px 32px;
}
.wrap > .qc-hub__panel,
.qc-hub .qc-hub__panel{
  padding:28px 32px 36px;
}
.qc-hub__panel h2{font-size:clamp(20px,2.2vw,26px);margin:0 0 8px}
.qc-hub__help{margin:0 0 18px;color:var(--ink-mute);font-size:15px}
.qc-hub__alert{
  padding:12px 14px;border-radius:10px;background:var(--pen-wash);color:var(--pen-deep);font-weight:600;
}
.qc-hub-form__grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 18px;margin-bottom:18px;
  align-items:start;
}
.qc-hub-form label{
  display:flex;flex-direction:column;gap:8px;font-size:14px;font-weight:600;
  min-width:0;margin:0;
}
.qc-hub-form label span{
  color:var(--ink-mute);font-weight:600;font-size:12px;text-transform:uppercase;
  letter-spacing:.04em;font-family:var(--mono);line-height:1.3;
}
.qc-hub-form label.is-disabled{opacity:.55}
.qc-hub-form label.is-disabled select,
html[data-theme="dark"] .qc-hub-form label.is-disabled select{
  cursor:not-allowed;background:var(--paper);
}
.qc-hub-form input[type="text"],
.qc-hub-form input[type="email"],
.qc-hub-form input[type="url"],
.qc-hub-form select,
.qc-hub-form textarea{
  display:block;width:100%;max-width:100%;box-sizing:border-box;
  margin:0;min-height:46px;padding:11px 12px;
  border:1.5px solid var(--hairline-strong);border-radius:10px;
  background:var(--card);color:var(--ink);
  font:inherit;font-weight:500;line-height:1.35;
  appearance:none;-webkit-appearance:none;
}
.qc-hub-form select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236E6C66' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:34px;
}
html[data-theme="dark"] .qc-hub-form select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%239A9DA8' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
}
.qc-hub-form textarea{min-height:120px;resize:vertical}
.qc-hub-form input[type="file"]{
  display:block;width:100%;max-width:100%;box-sizing:border-box;
  margin:0;padding:10px 12px;min-height:46px;
  border:1.5px dashed var(--hairline-strong);border-radius:10px;
  background:var(--paper);color:var(--ink);font:inherit;font-size:14px;
}
.qc-hub-form input:focus,
.qc-hub-form select:focus,
.qc-hub-form textarea:focus{
  outline:none;border-color:var(--pen);box-shadow:0 0 0 3px var(--pen-wash);
}
.qc-hub-form__file{grid-column:1 / -1}
.qc-hub-form__full{grid-column:1 / -1}
.qc-hub-form__msg{padding:10px 12px;border-radius:8px;margin-bottom:12px;font-size:14px}
.qc-hub-form__msg.is-ok{background:#e8f6ef;color:var(--pass)}
.qc-hub-form__msg.is-err,.qc-auth-msg.is-err{background:var(--pen-wash);color:var(--pen-deep)}
.qc-hub-form__dup{min-height:1.4em;font-size:14px;margin:0 0 14px;color:var(--ink-mute)}
.qc-hub-form__dup.is-dup{color:var(--pen-deep);font-weight:600}
.qc-hub-form__dup.is-ok{color:var(--pass);font-weight:600}
.qc-hub__coin-big{font-family:var(--display);font-size:48px;font-weight:700;margin:8px 0 6px;color:var(--pen)}
.qc-hub-log{list-style:none;margin:18px 0 0;padding:0}
.qc-hub-log li{
  display:grid;grid-template-columns:120px 64px 1fr;gap:10px;padding:10px 0;
  border-bottom:1px dashed var(--hairline);font-size:14px;
}
.qc-hub-log strong{color:var(--pass);font-family:var(--mono)}
.qc-hub-log em{color:var(--ink-mute);font-style:normal}
.qc-report-bar{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--hairline);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
}
.qc-report-btn{
  display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--hairline-strong);
  background:var(--paper);color:var(--ink-mute);border-radius:10px;padding:10px 14px;
  font:inherit;font-weight:600;font-size:14px;cursor:pointer;
}
.qc-report-btn:hover{border-color:var(--pen);color:var(--pen);background:var(--pen-wash)}

.qc-revision-list{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:12px}
.qc-revision-item{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 14px;background:var(--card);border:1px solid var(--hairline);border-radius:12px;
}
.qc-revision-item__main{min-width:0;display:flex;flex-direction:column;gap:6px}
.qc-revision-item__title{color:var(--ink);font-weight:700;text-decoration:none}
.qc-revision-item__title:hover{color:var(--pen);text-decoration:underline}
.qc-revision-item__meta{color:var(--ink-mute);font-size:12.5px;font-family:var(--mono)}
.qc-revision-unmark{
  border-color:var(--hairline-strong);background:var(--paper);color:var(--ink-mute);white-space:nowrap;
}
.qc-revision-unmark:hover{border-color:var(--pen);color:var(--pen);background:var(--pen-wash)}

.qc-later-read-wrap{margin:10px 0 18px}
.qc-later-read-wrap--lesson{margin:0 0 16px}
.qc-later-read{
  display:inline-flex;align-items:center;gap:8px;
  border:0;background:none;padding:0;cursor:pointer;
  color:var(--ink-mute);font:inherit;font-weight:600;font-size:14px;line-height:1.2;
}
.qc-later-read:hover{color:var(--pen)}
.qc-later-read__star{
  flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linejoin:round;
  transition:fill .15s ease,color .15s ease;
}
.qc-later-read.is-marked,
.qc-later-read.is-marked:hover{color:var(--pen-deep)}
.qc-later-read.is-marked .qc-later-read__star{
  fill:var(--pen);stroke:var(--pen-deep);
}

@media(max-width:720px){
  .qc-revision-item{flex-direction:column;align-items:flex-start}
}

.qc-report-box h3{margin:0 0 8px;font-size:22px}
.qc-report-lead{margin:0 0 14px;color:var(--ink-mute);font-size:14px}
.qc-report-msg.is-ok{background:#e8f6ef;color:var(--pass)}

@media(max-width:720px){
  .qc-hub-form__grid{grid-template-columns:1fr}
  .qc-hub-log li{grid-template-columns:1fr;gap:4px}
}

/* Archive hubs: /subject/ /university/ /papers/ /paper/ */
.qc-hub{padding:0 0 8px}
.qc-hub > .wrap.qc-hub__hero{
  max-width:var(--maxw);
  width:100%;
}
.qc-hub__hero{
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.9fr);gap:40px;align-items:center;
  /* Vertical only — .wrap supplies side gutter (incl. mobile 6px) */
  padding-top:48px;padding-bottom:32px;
}
.qc-hub__title{font-size:clamp(30px,3.8vw,46px);margin:12px 0 14px;line-height:1.08}
.qc-hub__hero .lead{margin:0 0 20px;max-width:62ch}
.qc-hub__search{
  display:flex;align-items:center;gap:10px;max-width:min(100%,560px);
  background:var(--card);border:1.5px solid var(--hairline-strong);border-radius:12px;
  padding:12px 14px;margin:0 0 16px;box-shadow:var(--shadow);color:var(--ink-mute);
}
.qc-hub__search input{
  flex:1;border:0;background:transparent;font:inherit;font-size:15px;color:var(--ink);outline:none;min-width:0;
}
.qc-hub__chips{margin:0 0 18px}
.qc-hub__stats{margin-top:4px}
.qc-hub__hero-visual{display:flex;justify-content:flex-end}
.qc-hub__sheet{
  width:min(100%,360px);aspect-ratio:4/5;border-radius:18px;padding:18px;
  background:linear-gradient(165deg,var(--card) 0%,var(--paper) 55%,var(--pen-wash) 100%);
  border:1px solid var(--hairline-strong);box-shadow:var(--shadow-lift);position:relative;
  transform:rotate(2deg);
}
.qc-hub__sheet-head{display:flex;gap:6px;margin-bottom:22px}
.qc-hub__sheet-head span{width:10px;height:10px;border-radius:50%;background:var(--hairline-strong)}
.qc-hub__sheet-head span:first-child{background:#ff5f57}
.qc-hub__sheet-head span:nth-child(2){background:#febc2e}
.qc-hub__sheet-head span:nth-child(3){background:#28c840}
.qc-hub__sheet-lines{display:grid;gap:12px}
.qc-hub__sheet-lines i{
  display:block;height:10px;border-radius:6px;background:rgba(0,0,0,.06);
}
.qc-hub__sheet-lines i:nth-child(1){width:88%}
.qc-hub__sheet-lines i:nth-child(2){width:72%}
.qc-hub__sheet-lines i:nth-child(3){width:94%}
.qc-hub__sheet-lines i:nth-child(4){width:60%}
.qc-hub__sheet-stamp{
  position:absolute;right:16px;bottom:16px;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--pen);background:var(--card);border:1px solid rgba(224,58,69,.25);
  padding:6px 10px;border-radius:999px;
}
.qc-hub__panel{padding:28px 32px 36px}
.qc-hub__panel .sec-head{margin-bottom:22px}
.qc-hub__grid{grid-template-columns:repeat(3,1fr)}
.qc-hub__card{display:flex;flex-direction:column;text-decoration:none;color:inherit;min-height:210px}
.qc-hub__card .subj-foot{margin-top:auto}
.qc-hub__card.is-filtered-out{display:none}
.qc-hub__filter-empty{color:var(--ink-mute);margin:8px 0 0}
.qc-hub__cta-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:8px}
@media(max-width:900px){
  .qc-hub__hero{grid-template-columns:1fr;padding-top:32px}
  .qc-hub__hero-visual{display:none}
  .qc-hub__grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .qc-hub__grid{grid-template-columns:1fr}
  .qc-hub__panel,
  .wrap > .qc-hub__panel,
  .qc-hub .qc-hub__panel{padding:22px 20px 28px}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}