/* ── Google Fonts ─────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=Rajdhani:wght@400;500;600;700&display=swap');

/* ── Design tokens ─────────────────────────────────────── */
:root{
  /* Backgrounds */
  --bg:      #0a0608;
  --panel:   #120c10;
  --panel2:  #0e0910;

  /* Text */
  --text:    #f0e4ec;
  --muted:   #7a5a6a;

  /* Neon accents — crimson / cyan / amber */
  --neon-red:    #ff2244;
  --neon-cyan:   #00d4ff;
  --neon-amber:  #ffaa00;

  /* Borders */
  --border:  rgba(255, 34, 68, 0.13);

  /* Glow shadows */
  --glow-red:    0 0 8px rgba(255,34,68,0.45),  0 0 24px rgba(255,34,68,0.18);
  --glow-cyan:   0 0 8px rgba(0,212,255,0.45),   0 0 24px rgba(0,212,255,0.18);
  --glow-amber:  0 0 8px rgba(255,170,0,0.45),   0 0 24px rgba(255,170,0,0.18);

  --shadow:  rgba(0,0,0,0.50);
  --max:     1100px;
}

/* ── Light mode ─────────────────────────────────────── */
html.light-mode {
  --bg:     #faf4f6;
  --panel:  #ffffff;
  --panel2: #f4eaee;
  --text:   #1a1218;
  --muted:  #7a5a6a;
  --border: rgba(255,34,68,0.18);
  --shadow: rgba(0,0,0,0.10);
  --glow-red:    0 0 6px rgba(200,20,50,0.25);
  --glow-cyan:   0 0 6px rgba(0,160,200,0.25);
  --glow-amber:  0 0 6px rgba(200,130,0,0.25);
}
html.light-mode .sidebar {
  background: linear-gradient(180deg, #ffffff, #f4eaee);
}
html.light-mode .card,
html.light-mode .subnav a,
html.light-mode .nav-toggle,
html.light-mode .home-btn,
html.light-mode .nav-item,
html.light-mode .sidebtn,
html.light-mode .note,
html.light-mode .objective,
html.light-mode .md pre,
html.light-mode .pager-btn {
  background: rgba(0,0,0,0.03) !important;
}
html.light-mode .sidebar-backdrop { background: rgba(0,0,0,0.35); }
html.light-mode .hamburger-fab    { background: rgba(0,0,0,0.06); }
html.light-mode .brand h1 { text-shadow: none; color: #1a1218; }
html.light-mode .sidebar { border-right: 1px solid rgba(255,34,68,0.2); }

/* ── Reset ─────────────────────────────────────────── */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Rajdhani', system-ui, -apple-system, Segoe UI, sans-serif;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  background: var(--bg);
}

/* ── Subtle scan-line texture on body ─────────────── */
body::before {
  content: '';
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(255,34,68,0.013) 2px,
    rgba(255,34,68,0.013) 4px
  );
}

/* ── Layout ─────────────────────────────────────────── */
.layout{
  display:grid;
  grid-template-columns: 320px 1fr;
  min-height:100vh;
}

/* ── Sidebar ─────────────────────────────────────────── */
.sidebar{
  padding:18px;
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel2) 100%);
  position:sticky;
  top:0;
  height:100vh;
  overflow:auto;
}

/* ── Brand ─────────────────────────────────────────── */
.brand h1{
  margin: 0 0 4px 0;
  font-family: 'Orbitron', monospace;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--neon-red);
  text-shadow: 0 0 10px rgba(255,34,68,0.6), 0 0 30px rgba(255,34,68,0.2);
}
.brand p{margin:0 0 14px 0; font-size: 13px; color: var(--muted);}

/* ── Section labels ─────────────────────────────────── */
.section-title{
  margin:14px 0 8px 0;
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neon-red);
  opacity: 0.7;
}

/* ── Nav items ─────────────────────────────────────── */
.nav-item{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:10px 12px;
  border: 1px solid var(--border);
  border-radius:10px;
  color:inherit;
  text-decoration:none;
  margin:10px 0;
  box-shadow: 0 4px 14px var(--shadow);
  background: rgba(255,34,68,0.02);
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.nav-item:hover{
  border-color: rgba(255,34,68,0.4);
  box-shadow: var(--glow-red);
  background: rgba(255,34,68,0.05);
}
.nav-item.active{
  border-color: var(--neon-red);
  box-shadow: var(--glow-red);
  outline: none;
}

.pill{
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
}

/* ── Main content ─────────────────────────────────── */
.content{padding:22px}

.page-header{max-width: var(--max)}
.page-header h2{
  margin:0 0 6px 0;
  font-family: 'Orbitron', monospace;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: .03em;
  color: var(--text);
}
.page-header p{margin:0 0 16px 0}

/* ── Domain/objective cards ─────────────────────────── */
.cards{
  max-width: var(--max);
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap:14px;
}

.card{
  display:block;
  padding:14px;
  border: 1px solid var(--border);
  border-radius:14px;
  text-decoration:none;
  color:inherit;
  background: rgba(255,34,68,0.02);
  box-shadow: 0 6px 20px var(--shadow);
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.card:hover{
  border-color: rgba(255,34,68,0.4);
  box-shadow: var(--glow-red);
  background: rgba(255,34,68,0.04);
}
.card h3{
  margin:0 0 6px 0;
  font-family: 'Orbitron', monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--neon-red);
}
.card p{margin:0}

/* ── Study tool shortcut cards ─────────────────────── */
.study-tools-row {
  max-width: var(--max);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.study-tool-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  text-decoration: none;
  color: #fff;
  transition: opacity .15s, box-shadow .2s, border-color .2s;
}
/* Flashcards: cyan → crimson */
.study-tool-card--flash {
  background: linear-gradient(135deg, #0090b0 0%, #cc1133 100%);
  box-shadow: 0 4px 20px rgba(0,144,176,.4);
  border-color: rgba(0,212,255,0.25);
}
.study-tool-card--flash:hover {
  box-shadow: 0 0 18px rgba(0,212,255,0.5), 0 0 40px rgba(204,17,51,0.3);
  border-color: var(--neon-cyan);
  opacity: 1;
}
/* Quiz: amber → crimson */
.study-tool-card--quiz {
  background: linear-gradient(135deg, #cc8800 0%, #cc1133 100%);
  box-shadow: 0 4px 20px rgba(204,136,0,.4);
  border-color: rgba(255,170,0,0.25);
}
.study-tool-card--quiz:hover {
  box-shadow: 0 0 18px rgba(255,170,0,0.5), 0 0 40px rgba(204,17,51,0.3);
  border-color: var(--neon-amber);
  opacity: 1;
}
/* Dashboard: crimson → cyan */
.study-tool-card--dash {
  background: linear-gradient(135deg, #aa1133 0%, #0090b0 100%);
  box-shadow: 0 4px 20px rgba(170,17,51,.4);
  border-color: rgba(255,34,68,0.25);
}
.study-tool-card--dash:hover {
  box-shadow: 0 0 18px rgba(255,34,68,0.4), 0 0 40px rgba(0,212,255,0.3);
  border-color: var(--neon-cyan);
  opacity: 1;
}
/* Lab: crimson → amber */
.study-tool-card--tools {
  background: linear-gradient(135deg, #cc1133 0%, #cc8800 100%);
  box-shadow: 0 4px 20px rgba(204,17,51,.4);
  border-color: rgba(255,34,68,0.25);
}
.study-tool-card--tools:hover {
  box-shadow: 0 0 18px rgba(255,34,68,.5), 0 0 40px rgba(204,136,0,.3);
  border-color: var(--neon-red);
  opacity: 1;
}
/* Labs: cyan → dark teal */
.study-tool-card--labs {
  background: linear-gradient(135deg, #006688 0%, #0090b0 100%);
  box-shadow: 0 4px 20px rgba(0,102,136,.4);
  border-color: rgba(0,212,255,0.25);
}
.study-tool-card--labs:hover {
  box-shadow: 0 0 18px rgba(0,212,255,0.5), 0 0 40px rgba(0,144,176,0.3);
  border-color: var(--neon-cyan);
  opacity: 1;
}
.stc-icon {
  font-size: 1.6rem;
  line-height: 1;
  flex-shrink: 0;
}
.stc-title {
  font-family: 'Orbitron', monospace;
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .04em;
}
.stc-sub {
  font-size: .75rem;
  opacity: .82;
  margin-top: 2px;
}

/* ── Note / info panels ─────────────────────────────── */
.note{
  max-width: var(--max);
  margin-top:18px;
  padding:14px;
  border: 1px solid var(--border);
  border-radius:14px;
  background: rgba(255,34,68,0.02);
}

.muted{color:var(--muted)}
.footer{margin-top:20px; font-size:12px; color: var(--muted);}

/* ── Objective panels ─────────────────────────────── */
.domain-wrap{max-width: var(--max)}
.objective{
  margin:14px 0;
  padding:14px;
  border: 1px solid var(--border);
  border-radius:14px;
  background: rgba(255,34,68,0.02);
  box-shadow: 0 6px 24px var(--shadow);
  transition: border-color .2s, box-shadow .2s;
}
.objective:hover {
  border-color: rgba(255,34,68,0.3);
  box-shadow: 0 0 14px rgba(255,34,68,0.12);
}
.objective h3{
  margin:0 0 10px 0;
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0,212,255,0.4);
}
.objective .sub{
  margin:14px 0 10px 0;
  font-size:13px;
  color:var(--muted);
}

ul{margin:8px 0 0 18px}
li{margin:6px 0}
code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
  color: var(--neon-red);
  background: rgba(255,34,68,0.06);
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid rgba(255,34,68,0.15);
}

/* ── Sidebar controls ───────────────────────────────── */
.sidebar-controls{
  display:flex;
  gap:8px;
  margin: 8px 0 12px 0;
}

.sidebtn{
  flex:1;
  cursor:pointer;
  padding:8px 10px;
  border: 1px solid var(--border);
  border-radius:10px;
  background: rgba(255,34,68,0.02);
  color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .03em;
  transition: border-color .2s, box-shadow .2s, color .2s;
}
.sidebtn:hover{
  border-color: rgba(255,34,68,0.5);
  color: var(--neon-red);
  box-shadow: 0 0 8px rgba(255,34,68,0.25);
}

/* ── Accordion nav ──────────────────────────────────── */
.nav-group{margin:10px 0}

.nav-toggle{
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  text-align:left;
  padding:10px 12px;
  border: 1px solid var(--border);
  border-radius:10px;
  background: rgba(255,34,68,0.02);
  color:inherit;
  cursor:pointer;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.nav-toggle:hover{
  border-color: rgba(0,212,255,0.4);
  box-shadow: 0 0 8px rgba(0,212,255,0.2);
  background: rgba(0,212,255,0.04);
}
.nav-toggle.active{
  border-color: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0,212,255,0.3);
  outline: none;
}

.nav-toggle .left{display:flex; flex-direction:column; gap:2px}
.nav-toggle .title{font-size:14px; font-weight: 600;}
.nav-toggle .meta{font-size:12px; color:var(--muted)}
.nav-toggle .chev{opacity:0.7; color: var(--neon-red);}

.subnav{
  margin-top:8px;
  padding-left:10px;
  display:flex;
  flex-direction:column;
  gap:6px;
}

.subnav a{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:8px 10px;
  border: 1px solid var(--border);
  border-radius:8px;
  text-decoration:none;
  color:inherit;
  background: rgba(255,34,68,0.01);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 500;
  font-size: 13px;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.subnav a:hover{
  border-color: rgba(255,34,68,0.35);
  background: rgba(255,34,68,0.04);
  box-shadow: 0 0 6px rgba(255,34,68,0.15);
}
.subnav a.active{
  border-color: var(--neon-red);
  background: rgba(255,34,68,0.06);
  box-shadow: 0 0 8px rgba(255,34,68,0.25);
  outline: none;
}

.subid{
  font-size:11px;
  color: var(--neon-amber);
  white-space:nowrap;
  font-family: 'Orbitron', monospace;
  font-weight: 600;
}

/* ── Home button ────────────────────────────────────── */
.home-btn{
  display:block;
  margin: 0 0 10px 0;
  padding:10px 12px;
  border: 1px solid var(--border);
  border-radius:10px;
  text-decoration:none;
  color:inherit;
  background: rgba(255,34,68,0.02);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  transition: border-color .2s, box-shadow .2s, color .2s;
}
.home-btn:hover{
  border-color: rgba(255,34,68,0.4);
  color: var(--neon-red);
  box-shadow: 0 0 8px rgba(255,34,68,0.2);
}

/* ── Sidebar study-tool nav buttons ─────────────────── */
.study-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0 0 10px 0;
}
.flashcards-link,
.quiz-link,
.dashboard-link,
.tools-link {
  display: block;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  color: #fff;
  font-family: 'Orbitron', monospace;
  font-weight: 700;
  font-size: .72rem;
  text-align: center;
  letter-spacing: .06em;
  transition: opacity .15s, box-shadow .2s, border-color .2s;
}
.flashcards-link {
  background: linear-gradient(135deg, #0080a0 0%, #cc1133 100%);
  box-shadow: 0 3px 12px rgba(0,128,160,0.4);
  border-color: rgba(0,212,255,0.2);
}
.flashcards-link:hover {
  box-shadow: var(--glow-cyan);
  border-color: var(--neon-cyan);
  opacity: 1;
}
.quiz-link {
  background: linear-gradient(135deg, #b07700 0%, #cc1133 100%);
  box-shadow: 0 3px 12px rgba(176,119,0,0.4);
  border-color: rgba(255,170,0,0.2);
}
.quiz-link:hover {
  box-shadow: var(--glow-amber);
  border-color: var(--neon-amber);
  opacity: 1;
}
.dashboard-link {
  background: linear-gradient(135deg, #991133 0%, #0080a0 100%);
  box-shadow: 0 3px 12px rgba(153,17,51,0.4);
  border-color: rgba(255,34,68,0.2);
}
.dashboard-link:hover {
  box-shadow: var(--glow-red);
  border-color: var(--neon-red);
  opacity: 1;
}
.tools-link {
  background: linear-gradient(135deg, #cc1133 0%, #b07700 100%);
  box-shadow: 0 3px 12px rgba(204,17,51,0.4);
  border-color: rgba(255,34,68,0.2);
}
.tools-link:hover {
  box-shadow: var(--glow-red);
  border-color: var(--neon-red);
  opacity: 1;
}

/* ── Socials ─────────────────────────────────────────── */
.social-title{
  margin:16px 0 8px 0;
  font-family: 'Orbitron', monospace;
  font-size:10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform:uppercase;
  color: var(--neon-red);
  opacity: 0.7;
}
.social-icons{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.social-icons a{
  width:36px;
  height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border: 1px solid var(--border);
  border-radius:8px;
  background: rgba(255,34,68,0.02);
  color: var(--muted);
  text-decoration:none;
  transition: border-color .2s, box-shadow .2s, color .2s;
}
.social-icons a:hover{
  border-color: var(--neon-red);
  color: var(--neon-red);
  box-shadow: 0 0 8px rgba(255,34,68,0.3);
}
.social-icons svg{width:16px; height:16px; fill: currentColor;}

/* ── Pager ───────────────────────────────────────────── */
.pager{
  max-width: var(--max);
  margin-top: 18px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.pager-btn{
  display:inline-block;
  padding:10px 16px;
  border: 1px solid var(--border);
  border-radius:8px;
  text-decoration:none;
  color: var(--text);
  background: rgba(255,34,68,0.02);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .03em;
  transition: border-color .2s, box-shadow .2s, color .2s;
}
.pager-btn:hover{
  border-color: rgba(255,34,68,0.4);
  color: var(--neon-red);
  box-shadow: 0 0 8px rgba(255,34,68,0.2);
}

/* ── YouTube embed ──────────────────────────────────── */
.yt{
  position:relative;
  width:100%;
  padding-top:56.25%;
  border: 1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  background: rgba(255,34,68,0.02);
  box-shadow: 0 6px 24px var(--shadow);
  margin-top: 6px;
}
.yt iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0;
}

/* ── Markdown content ────────────────────────────────── */
.md{
  margin-top: 14px;
  line-height: 1.7;
}
.md h1,.md h2,.md h3{
  margin: 16px 0 10px 0;
  font-family: 'Orbitron', monospace;
  letter-spacing: .03em;
}
.md h2 { color: var(--neon-cyan); font-size: 1.1rem; }
.md h3 { color: var(--neon-red);  font-size: .95rem; }
.md p{ margin: 10px 0; }
.md pre{
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,34,68,0.03);
  overflow:auto;
}
.md blockquote{
  margin: 10px 0;
  padding: 10px 14px;
  border-left: 3px solid var(--neon-cyan);
  background: rgba(0,212,255,0.05);
  border-radius: 0 10px 10px 0;
}
.md-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1rem 0;
}
.md table{
  width:100%;
  border-collapse: collapse;
  margin-top: 0;
  min-width: 400px;
}
.md th,.md td{
  border: 1px solid var(--border);
  padding: 8px;
  vertical-align: top;
}
.md th {
  background: rgba(255,34,68,0.06);
  color: var(--neon-red);
  font-family: 'Orbitron', monospace;
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.md a{
  color: var(--neon-red);
  text-decoration: underline;
}

[hidden] { display: none !important; }

/* ── Markdown images ─────────────────────────────────── */
.md-figure {
  margin: 1.8rem auto;
  text-align: center;
}
.md-img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,34,68,0.02);
  box-shadow: 0 8px 28px var(--shadow);
  cursor: zoom-in;
  transition: transform .2s ease, box-shadow .2s ease;
}
.md-img:hover {
  transform: scale(1.015);
  box-shadow: var(--glow-red);
}
.md-caption {
  margin-top: 8px;
  font-size: .78rem;
  color: var(--muted);
  font-style: italic;
  line-height: 1.4;
}

/* ── Image zoom lightbox ─────────────────────────────── */
.img-zoom-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 24px;
  cursor: zoom-out;
}
.img-zoom-overlay.open { display: flex; }
.img-zoom-img {
  max-width: min(90vw, 1000px);
  max-height: 78vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 0 40px rgba(255,34,68,0.2), 0 32px 80px rgba(0,0,0,.7);
  cursor: default;
}
.img-zoom-caption {
  color: rgba(255,255,255,.7);
  font-size: .82rem;
  font-style: italic;
  text-align: center;
  max-width: 680px;
  line-height: 1.5;
  margin: 0;
}
.img-zoom-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid rgba(255,34,68,0.3);
  background: rgba(255,34,68,0.08);
  color: var(--neon-red);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, box-shadow .15s;
}
.img-zoom-close:hover {
  background: rgba(255,34,68,0.18);
  box-shadow: var(--glow-red);
}

/* ── Mobile Hamburger Drawer ─────────────────────────── */
.hamburger-fab{
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 1101;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid rgba(255,34,68,0.3);
  background: rgba(255,34,68,0.06);
  color: var(--neon-red);
  box-shadow: 0 0 10px rgba(255,34,68,0.2);
  cursor: pointer;
  display: none;
  font-size: 20px;
  line-height: 1;
}
.hamburger-fab:hover{
  background: rgba(255,34,68,0.12);
  box-shadow: var(--glow-red);
}
.sidebar-backdrop{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 1100;
  display: none;
}

@media (max-width: 900px){
  .hamburger-fab{ display: inline-flex; align-items:center; justify-content:center; }
  .layout{ grid-template-columns: 1fr; }
  .sidebar{
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    width: min(86vw, 360px);
    z-index: 1102;
    transform: translateX(-110%);
    transition: transform 180ms ease;
    border-right: 1px solid rgba(255,34,68,0.2);
    overflow: auto;
  }
  body.sidebar-open .sidebar{ transform: translateX(0); }
  body.sidebar-open .sidebar-backdrop{ display: block; }
  .content, .main-content{ padding-top: 64px; }
}

@media (max-width: 900px){
  .cards{ grid-template-columns: 1fr !important; }
  .layout{ grid-template-columns: 1fr !important; }
  .page-header, .cards, .note, .domain-wrap{ max-width: 100% !important; }
}

/* ══════════════════════════════════════════════════════
   BOOKMARKS
   ══════════════════════════════════════════════════════ */
.bm-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,34,68,0.02);
  color: var(--muted);
  font-size: .85rem;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s, box-shadow .15s;
  margin-bottom: 12px;
}
.bm-btn:hover {
  color: var(--neon-amber);
  border-color: var(--neon-amber);
  box-shadow: 0 0 8px rgba(255,170,0,0.25);
}
.bm-btn.bookmarked {
  color: var(--neon-amber);
  border-color: var(--neon-amber);
  background: rgba(255,170,0,0.08);
  box-shadow: 0 0 8px rgba(255,170,0,0.2);
}
.bm-star {
  font-size: 10px;
  color: var(--neon-amber);
  margin-left: 4px;
  flex-shrink: 0;
}
.db-bookmark-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}
.db-bookmark-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,34,68,0.02);
  text-decoration: none;
  color: inherit;
  transition: border-color .2s, box-shadow .2s;
}
.db-bookmark-card:hover {
  border-color: rgba(255,170,0,0.4);
  box-shadow: 0 0 8px rgba(255,170,0,0.2);
}
.db-bookmark-card .bmc-id {
  font-size: .7rem;
  color: var(--neon-amber);
  font-weight: 700;
  font-family: 'Orbitron', monospace;
}
.db-bookmark-card .bmc-title { font-size: .85rem; color: var(--text); }

/* ══════════════════════════════════════════════════════
   SEARCH OVERLAY
   ══════════════════════════════════════════════════════ */
.search-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,34,68,0.02);
  color: var(--muted);
  font-size: .83rem;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 500;
  cursor: pointer;
  margin-bottom: 6px;
  transition: color .15s, border-color .15s, background .15s, box-shadow .15s;
  text-align: left;
}
.search-trigger:hover {
  color: var(--neon-red);
  border-color: rgba(255,34,68,0.4);
  background: rgba(255,34,68,0.05);
  box-shadow: 0 0 8px rgba(255,34,68,0.15);
}
.search-trigger kbd {
  font-size: .72rem;
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(255,34,68,0.05);
  color: var(--neon-red);
  font-family: inherit;
  opacity: 0.8;
}
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(0,0,0,.80);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}
.search-overlay.open { display: flex; }
.search-box {
  width: min(620px, 94vw);
  background: var(--panel);
  border: 1px solid rgba(255,34,68,0.3);
  border-radius: 14px;
  box-shadow: var(--glow-red), 0 24px 60px rgba(0,0,0,.6);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.search-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.search-input-row .search-icon { font-size: 1.1rem; opacity: .6; flex-shrink: 0; }
.search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 1rem;
  color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 500;
}
.search-input::placeholder { color: var(--muted); }
.search-esc-hint {
  font-size: .72rem;
  color: var(--muted);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  flex-shrink: 0;
}
.search-results {
  max-height: 54vh;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.search-group-label {
  padding: 8px 16px 4px;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: var(--neon-red);
  opacity: 0.7;
  font-family: 'Orbitron', monospace;
}
.search-result {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 16px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background .1s, border-color .1s;
}
.search-result:hover,
.search-result.active {
  background: rgba(255,34,68,0.06);
  border-left-color: var(--neon-red);
}
.search-result-badge {
  flex-shrink: 0;
  font-size: .62rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: 2px;
  font-family: 'Orbitron', monospace;
}
.badge-obj  { background: rgba(0,212,255,.18); color: var(--neon-cyan); border: 1px solid rgba(0,212,255,.3); }
.badge-card { background: rgba(255,34,68,.12);  color: var(--neon-red);  border: 1px solid rgba(255,34,68,.25);}
.badge-q    { background: rgba(255,170,0,.14);  color: var(--neon-amber); border: 1px solid rgba(255,170,0,.3); }

.search-result-text { flex: 1; min-width: 0; }
.search-result-main {
  font-size: .9rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-result-sub {
  font-size: .75rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}
.search-empty {
  padding: 2.5rem 1rem;
  text-align: center;
  color: var(--muted);
  font-size: .88rem;
}

/* ══════════════════════════════════════════════════════
   PDF EXPORT BUTTON
   ══════════════════════════════════════════════════════ */
.btn-export-pdf {
  background: rgba(255,34,68,0.04);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .6rem 1.5rem;
  font-size: .9rem;
  font-weight: 600;
  font-family: 'Rajdhani', sans-serif;
  letter-spacing: .04em;
  cursor: pointer;
  transition: border-color .2s, color .2s, box-shadow .2s;
}
.btn-export-pdf:hover {
  border-color: rgba(255,34,68,0.4);
  color: var(--neon-red);
  box-shadow: 0 0 8px rgba(255,34,68,0.2);
}

/* ══════════════════════════════════════════════════════
   PRINT  (@media print)
   ══════════════════════════════════════════════════════ */
@media print {
  .sidebar,
  .hamburger-fab,
  .sidebar-backdrop,
  #qz-setup-screen,
  #qz-active-screen,
  .qz-result-actions { display: none !important; }

  body { background: #fff !important; color: #111 !important; margin: 0; }
  .layout { display: block !important; }
  .main-content { display: block !important; }
  .qz-wrap { max-width: 100% !important; padding: 1rem !important; }

  .qz-results-hero,
  .qz-domain-breakdown,
  .qz-missed-section {
    background: #fff !important;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
    break-inside: avoid;
  }

  .qz-missed-your    { color: #c0392b !important; }
  .qz-missed-correct { color: #27ae60 !important; }
  .qz-score-pct      { color: #111    !important; }
  .qz-pass-badge.pass { color: #27ae60 !important; border-color: #27ae60 !important; }
  .qz-pass-badge.fail { color: #c0392b !important; border-color: #c0392b !important; }
  .qz-missed-exp { color: #555 !important; }
  .qz-score-ring.pass { border-color: #27ae60 !important; }
  .qz-score-ring.fail { border-color: #c0392b !important; }
}