/* TemDaniels Academy — CYBS105 GRC */
:root{
  --bg:#070b17; --bg2:#0c1226; --panel:#0f1730; --panel2:#131e3c;
  --border:#1f2b52; --accent:#4f8cff; --accent2:#7c5cff; --gold:#ffb13b;
  --green:#3ddc97; --red:#ff5d73; --yellow:#ffd166; --text:#e7ecff;
  --muted:#97a3c7; --shadow:0 10px 30px rgba(0,0,0,.35);
  --grad:linear-gradient(135deg,#4f8cff 0%, #7c5cff 50%, #ff6bd6 100%);
  --grad-gold:linear-gradient(135deg,#ffb13b,#ff7a59);
  --topbar-bg:rgba(7,11,23,.85);
  --opt-bg:#0b1229; --opt-hover:#101a3b; --code-bg:#050814;
  --input-bg:#0a1126; --progress-bg:#0a1126; --th-bg:#0b1229;
}
/* Light theme override */
:root[data-theme="light"]{
  --bg:#f7f6f1; --bg2:#eceadd; --panel:#ffffff; --panel2:#f2eedf;
  --border:#d9d1b5; --accent:#8a6a1a; --accent2:#b8942d; --gold:#a67c00;
  --green:#1f8a5a; --red:#b8253b; --yellow:#a67c00; --text:#1a1a1a;
  --muted:#5a523c; --shadow:0 8px 24px rgba(60,45,10,.12);
  --grad:linear-gradient(135deg,#8a6a1a 0%, #b8942d 50%, #e6c67a 100%);
  --grad-gold:linear-gradient(135deg,#b8942d,#e6c67a);
  --topbar-bg:rgba(255,253,246,.9);
  --opt-bg:#faf7ec; --opt-hover:#efe8cf; --code-bg:#f1ecd9;
  --input-bg:#faf7ec; --progress-bg:#eae3ca; --th-bg:#f2eedf;
}
:root[data-theme="light"] h1,
:root[data-theme="light"] h2,
:root[data-theme="light"] h3,
:root[data-theme="light"] h4{color:#1a1a1a}
:root[data-theme="light"] .callout{background:#fff8e6}
:root[data-theme="light"] .callout.warn{background:#fff4d6}
:root[data-theme="light"] .callout.danger{background:#fde6ea}
:root[data-theme="light"] .callout.success{background:#e4f4ea}
:root[data-theme="light"] .hero{background:
  radial-gradient(1000px 400px at 20% -10%, rgba(184,148,45,.2), transparent),
  radial-gradient(800px 400px at 100% 10%, rgba(230,198,122,.25), transparent),
  linear-gradient(180deg,#f7f6f1 0%, #eceadd 100%)}
:root[data-theme="light"] pre.code,:root[data-theme="light"] code,:root[data-theme="light"] .code{color:#4a3b10}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:'Inter','Segoe UI',system-ui,Arial,sans-serif;line-height:1.55}
a{color:var(--accent);text-decoration:none}
a:hover{color:#9fbdff}
img{max-width:100%}
/* Topbar */
.topbar{position:sticky;top:0;z-index:30;background:var(--topbar-bg);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.topbar-inner{max-width:1200px;margin:auto;display:flex;align-items:center;
  gap:16px;padding:12px 20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.3px;color:var(--text)}
.brand-logo{width:44px;height:44px;border-radius:10px;background:#fff;
  display:grid;place-items:center;padding:2px;box-shadow:var(--shadow);overflow:hidden}
.brand-logo img{width:100%;height:100%;object-fit:contain;display:block}
.brand small{display:block;font-weight:500;color:var(--muted);font-size:11px}
.theme-toggle{background:var(--panel);border:1px solid var(--border);color:var(--text);
  width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:16px;display:grid;
  place-items:center;transition:transform .15s,background .15s}
.theme-toggle:hover{transform:translateY(-1px);background:var(--panel2)}
.nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.nav a{padding:8px 12px;border-radius:10px;color:var(--text);font-weight:500}
.nav a.active, .nav a:hover{background:var(--panel2)}
.xp-chip{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  background:var(--panel);border:1px solid var(--border);font-size:13px}
.xp-chip b{color:var(--gold)}
.rank-chip{padding:4px 10px;border-radius:999px;background:var(--grad);color:#fff;
  font-size:12px;font-weight:700}
/* Layout */
.container{max-width:1200px;margin:auto;padding:28px 20px}
.hero{padding:64px 20px 40px;background:
  radial-gradient(1000px 400px at 20% -10%, rgba(79,140,255,.25), transparent),
  radial-gradient(800px 400px at 100% 10%, rgba(124,92,255,.25), transparent),
  linear-gradient(180deg,#070b17 0%, #0b1228 100%);
  border-bottom:1px solid var(--border)}
.hero-inner{max-width:1200px;margin:auto;display:grid;grid-template-columns:1.3fr 1fr;gap:40px}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr}}
.hero h1{font-size:48px;line-height:1.1;margin:0 0 14px;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;color:var(--muted);max-width:640px}
.hero .cta{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.btn{padding:12px 18px;border-radius:12px;border:1px solid var(--border);
  background:var(--panel);color:var(--text);font-weight:600;cursor:pointer;
  transition:transform .15s,box-shadow .15s;font-size:14px;display:inline-flex;
  align-items:center;gap:8px;text-decoration:none}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.btn.primary{background:var(--grad);border:none;color:#fff}
.btn.gold{background:var(--grad-gold);border:none;color:#241400}
.btn.ghost{background:transparent}
.btn.danger{background:#3a0f1a;border-color:#6e1e32;color:#ffb3c1}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.stat{background:var(--panel);border:1px solid var(--border);padding:14px;border-radius:14px}
.stat b{display:block;font-size:22px}
.stat span{color:var(--muted);font-size:12px}
/* Cards */
.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;
  padding:22px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}}
/* Module card */
.mod-card{position:relative;display:flex;flex-direction:column;gap:10px;
  background:var(--panel);border:1px solid var(--border);border-radius:16px;
  padding:18px;transition:transform .2s,border-color .2s;overflow:hidden}
.mod-card::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad)}
.mod-card:hover{transform:translateY(-3px);border-color:var(--accent)}
.mod-card.completed{border-color:var(--green)}
.mod-card.completed::before{background:linear-gradient(90deg,#3ddc97,#3a8aff)}
.mod-num{font-size:12px;color:var(--muted);letter-spacing:2px;text-transform:uppercase}
.mod-title{font-size:18px;font-weight:700;margin:2px 0 4px}
.level-pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11px;
  font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.level-pill.beginner{background:rgba(61,220,151,.12);color:#3ddc97;border:1px solid rgba(61,220,151,.35)}
.level-pill.intermediate{background:rgba(255,209,102,.12);color:#ffd166;border:1px solid rgba(255,209,102,.35)}
.level-pill.advanced{background:rgba(255,93,115,.12);color:#ff5d73;border:1px solid rgba(255,93,115,.35)}
.mod-desc{color:var(--muted);font-size:13px;min-height:48px}
.mod-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:auto}
.mod-xp{color:var(--gold);font-weight:700}
/* Progress bars */
.progress{width:100%;height:10px;background:var(--progress-bg);border:1px solid var(--border);
  border-radius:999px;overflow:hidden}
.progress > span{display:block;height:100%;background:var(--grad);width:0%;transition:width .35s}
/* Typography */
h1,h2,h3,h4{color:#fff}
h2.section{font-size:24px;margin:0 0 16px;display:flex;align-items:center;gap:10px}
h2.section::before{content:"";width:4px;height:22px;background:var(--grad);border-radius:3px}
.eyebrow{color:var(--accent);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:12px}
.kbd{font-family:ui-monospace,Menlo,monospace;padding:2px 6px;background:var(--panel2);
  border:1px solid var(--border);border-radius:6px;font-size:12px}
code,.code{font-family:ui-monospace,Menlo,monospace;background:var(--code-bg);border:1px solid var(--border);
  padding:2px 6px;border-radius:6px;color:var(--text);font-size:13px}
pre.code{display:block;padding:14px;overflow:auto;white-space:pre;line-height:1.45}
/* Module page */
.mod-wrap{display:grid;grid-template-columns:240px 1fr;gap:28px}
@media(max-width:900px){.mod-wrap{grid-template-columns:1fr}}
.mod-toc{position:sticky;top:72px;align-self:start;background:var(--panel);border:1px solid var(--border);
  border-radius:16px;padding:14px;font-size:13px}
.mod-toc a{display:block;padding:8px 10px;border-radius:8px;color:var(--muted)}
.mod-toc a:hover,.mod-toc a.active{background:var(--panel2);color:#fff}
.mod-hero{padding:22px;border-radius:16px;background:
  radial-gradient(600px 200px at 0% 0%, rgba(79,140,255,.25), transparent),
  var(--panel);border:1px solid var(--border)}
.callout{padding:14px 16px;border-left:4px solid var(--accent);background:#0a1331;
  border-radius:8px;margin:14px 0}
.callout.warn{border-color:var(--yellow);background:#2a2512}
.callout.danger{border-color:var(--red);background:#2a1018}
.callout.success{border-color:var(--green);background:#0f2a1e}
/* Quiz — standardized two-column grid layout */
.quiz{display:block}
.quiz .question{background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:18px;margin:12px 0}
.quiz .question h4{margin:0 0 12px;font-size:16px;line-height:1.45}
.quiz .options{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:0}
@media(max-width:700px){.quiz .options{grid-template-columns:1fr}}
.quiz .opt{padding:12px 14px;border:1px solid var(--border);border-radius:10px;
  cursor:pointer;background:var(--opt-bg);transition:background .15s,border-color .15s,transform .1s;
  font-size:14px;line-height:1.4;min-height:48px;display:flex;align-items:center}
.quiz .opt:hover{background:var(--opt-hover);border-color:var(--accent)}
.quiz .opt.correct{background:rgba(61,220,151,.15);border-color:var(--green);color:var(--text)}
.quiz .opt.wrong{background:rgba(255,93,115,.15);border-color:var(--red);color:var(--text)}
.quiz .explain{margin-top:12px;font-size:13px;color:var(--muted);display:none;
  padding:10px 12px;background:var(--opt-bg);border-left:3px solid var(--accent);border-radius:6px}
.quiz .question.answered .explain{display:block}
/* Scenario (branching) */
.scenario{background:var(--panel2);border:1px solid var(--border);border-radius:16px;padding:18px}
.scenario .node{display:none}
.scenario .node.active{display:block}
.choices{display:grid;gap:8px;margin-top:10px}
.choice{padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:var(--opt-bg);
  cursor:pointer;text-align:left;color:var(--text)}
.choice:hover{border-color:var(--accent)}
.badge-toast{position:fixed;right:20px;bottom:20px;background:var(--grad);color:#fff;
  padding:14px 18px;border-radius:12px;box-shadow:var(--shadow);display:none;z-index:100;
  animation:pop .35s}
@keyframes pop{from{transform:translateY(20px);opacity:0}to{transform:none;opacity:1}}
/* Table */
table{width:100%;border-collapse:collapse;margin:10px 0}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
th{background:var(--th-bg);color:var(--text)}
/* Badge */
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--panel2);border:1px solid var(--border);
  padding:6px 10px;border-radius:999px;font-size:12px}
.badge.gold{background:rgba(255,177,59,.12);color:var(--gold);border-color:rgba(255,177,59,.35)}
.badge.green{background:rgba(61,220,151,.12);color:var(--green);border-color:rgba(61,220,151,.35)}
.badge.purple{background:rgba(124,92,255,.14);color:#b3a1ff;border-color:rgba(124,92,255,.35)}
/* Match / Drag */
.drag-area{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drag-col{background:var(--panel2);border:1px dashed var(--border);border-radius:12px;padding:10px;min-height:120px}
.drag-item{padding:8px 10px;margin:6px 0;background:var(--opt-bg);border:1px solid var(--border);border-radius:8px;cursor:grab}
.drag-item.dragging{opacity:.5}
/* Footer */
footer{padding:30px 20px;text-align:center;color:var(--muted);border-top:1px solid var(--border);margin-top:40px}
.hstack{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.vstack{display:flex;flex-direction:column;gap:10px}
.space{margin-top:16px}
/* Skill bar */
.rank-track{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px;font-size:12px}
.rank-track .node{padding:8px 10px;text-align:center;border:1px solid var(--border);border-radius:10px;background:var(--opt-bg);color:var(--muted)}
.rank-track .node.active{background:var(--grad);color:#fff;border-color:transparent;font-weight:700}
/* Small */
.small{font-size:12px;color:var(--muted)}
.center{text-align:center}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--panel2);border:1px solid var(--border);font-size:12px}
.ok{color:var(--green)} .bad{color:var(--red)} .warn{color:var(--yellow)}
input[type=text],input[type=number],textarea,select{width:100%;padding:10px 12px;border-radius:10px;background:var(--input-bg);border:1px solid var(--border);color:var(--text);font-family:inherit;font-size:14px}
label{display:block;margin:10px 0 6px;color:var(--muted);font-size:13px}
hr{border:none;border-top:1px solid var(--border);margin:20px 0}

/* ── THEORY / TEXTBOOK ENHANCEMENTS ───────────────────────────────────── */

/* Theory section wrapper */
.theory-block{border-radius:16px;padding:22px 24px;margin:18px 0;position:relative;overflow:hidden}
.theory-block::before{content:"";position:absolute;top:0;left:0;width:6px;height:100%}
.theory-block.blue{background:rgba(79,140,255,.1);border:1px solid rgba(79,140,255,.3)}
.theory-block.blue::before{background:linear-gradient(180deg,#4f8cff,#3a6bff)}
.theory-block.purple{background:rgba(124,92,255,.1);border:1px solid rgba(124,92,255,.3)}
.theory-block.purple::before{background:linear-gradient(180deg,#7c5cff,#a855f7)}
.theory-block.teal{background:rgba(61,220,151,.1);border:1px solid rgba(61,220,151,.3)}
.theory-block.teal::before{background:linear-gradient(180deg,#3ddc97,#10b981)}
.theory-block.gold{background:rgba(255,177,59,.1);border:1px solid rgba(255,177,59,.3)}
.theory-block.gold::before{background:linear-gradient(180deg,#ffb13b,#f59e0b)}
.theory-block.rose{background:rgba(255,93,115,.1);border:1px solid rgba(255,93,115,.3)}
.theory-block.rose::before{background:linear-gradient(180deg,#ff5d73,#f43f5e)}
.theory-block.cyan{background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.3)}
.theory-block.cyan::before{background:linear-gradient(180deg,#22d3ee,#06b6d4)}
.theory-block.orange{background:rgba(251,146,60,.1);border:1px solid rgba(251,146,60,.3)}
.theory-block.orange::before{background:linear-gradient(180deg,#fb923c,#ea580c)}
.theory-block h4{margin:0 0 10px;font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px}
.theory-block p,.theory-block li{font-size:14px;line-height:1.65;margin:6px 0}
.theory-block ul,.theory-block ol{margin:8px 0;padding-left:20px}

/* Concept pill tags */
.concept-pills{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.cpill{padding:5px 14px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.3px}
.cpill.blue{background:rgba(79,140,255,.18);color:#7eb4ff;border:1px solid rgba(79,140,255,.4)}
.cpill.purple{background:rgba(124,92,255,.18);color:#b3a1ff;border:1px solid rgba(124,92,255,.4)}
.cpill.teal{background:rgba(61,220,151,.18);color:#5ee8aa;border:1px solid rgba(61,220,151,.4)}
.cpill.gold{background:rgba(255,177,59,.18);color:#ffc96b;border:1px solid rgba(255,177,59,.4)}
.cpill.rose{background:rgba(255,93,115,.18);color:#ff8fa0;border:1px solid rgba(255,93,115,.4)}
.cpill.cyan{background:rgba(34,211,238,.18);color:#67e8f9;border:1px solid rgba(34,211,238,.4)}

/* Framework badge */
.fw-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:8px;
  font-size:11px;font-weight:800;letter-spacing:.8px;text-transform:uppercase}
.fw-badge.nist{background:rgba(79,140,255,.2);color:#7eb4ff;border:1px solid rgba(79,140,255,.4)}
.fw-badge.iso{background:rgba(61,220,151,.2);color:#5ee8aa;border:1px solid rgba(61,220,151,.4)}
.fw-badge.coso{background:rgba(255,177,59,.2);color:#ffc96b;border:1px solid rgba(255,177,59,.4)}
.fw-badge.cobit{background:rgba(124,92,255,.2);color:#b3a1ff;border:1px solid rgba(124,92,255,.4)}
.fw-badge.aicpa{background:rgba(34,211,238,.2);color:#67e8f9;border:1px solid rgba(34,211,238,.4)}
.fw-badge.pci{background:rgba(255,93,115,.2);color:#ff8fa0;border:1px solid rgba(255,93,115,.4)}
.fw-badge.nerc{background:rgba(251,146,60,.2);color:#fda96a;border:1px solid rgba(251,146,60,.4)}

/* Definition box */
.defbox{background:var(--panel2);border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin:10px 0}
.defbox .term{font-weight:800;font-size:15px;color:#fff;margin-bottom:6px}
.defbox .def{font-size:13px;color:var(--muted);line-height:1.6}
.defbox .source{font-size:11px;color:var(--accent);margin-top:6px;font-style:italic}

/* Key insight highlight */
.key-insight{background:linear-gradient(135deg,rgba(79,140,255,.15),rgba(124,92,255,.15));
  border:1px solid rgba(124,92,255,.35);border-radius:12px;padding:16px 18px;margin:14px 0;
  position:relative}
.key-insight::after{content:"💡 KEY INSIGHT";position:absolute;top:-10px;left:16px;
  background:var(--grad);color:#fff;padding:2px 10px;border-radius:999px;
  font-size:10px;font-weight:800;letter-spacing:.8px}
.key-insight p{margin:0;font-size:14px;line-height:1.65}

/* Colorful section labels */
.section-label{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:10px;
  font-size:12px;font-weight:800;letter-spacing:.5px;text-transform:uppercase;margin-bottom:12px}
.section-label.theory{background:rgba(124,92,255,.2);color:#b3a1ff;border:1px solid rgba(124,92,255,.3)}
.section-label.history{background:rgba(255,177,59,.2);color:#ffc96b;border:1px solid rgba(255,177,59,.3)}
.section-label.framework{background:rgba(79,140,255,.2);color:#7eb4ff;border:1px solid rgba(79,140,255,.3)}
.section-label.model{background:rgba(61,220,151,.2);color:#5ee8aa;border:1px solid rgba(61,220,151,.3)}
.section-label.standard{background:rgba(34,211,238,.2);color:#67e8f9;border:1px solid rgba(34,211,238,.3)}
.section-label.practice{background:rgba(251,146,60,.2);color:#fda96a;border:1px solid rgba(251,146,60,.3)}

/* Colorful numbered process steps */
.process-steps{display:flex;flex-direction:column;gap:10px;margin:12px 0}
.process-step{display:flex;gap:14px;align-items:flex-start;padding:12px 16px;
  background:var(--panel2);border:1px solid var(--border);border-radius:12px}
.step-num{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  font-weight:900;font-size:14px;flex-shrink:0;color:#fff}
.step-num.blue{background:linear-gradient(135deg,#4f8cff,#3a6bff)}
.step-num.purple{background:linear-gradient(135deg,#7c5cff,#a855f7)}
.step-num.teal{background:linear-gradient(135deg,#3ddc97,#10b981)}
.step-num.gold{background:linear-gradient(135deg,#ffb13b,#f59e0b)}
.step-num.rose{background:linear-gradient(135deg,#ff5d73,#f43f5e)}
.step-num.cyan{background:linear-gradient(135deg,#22d3ee,#06b6d4)}
.step-num.orange{background:linear-gradient(135deg,#fb923c,#ea580c)}
.step-body{flex:1}
.step-body strong{display:block;font-size:14px;margin-bottom:4px;color:#fff}
.step-body p{margin:0;font-size:13px;color:var(--muted);line-height:1.55}

/* Two-column definition grid */
.def-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0}
@media(max-width:700px){.def-grid{grid-template-columns:1fr}}
.def-card{padding:14px 16px;border-radius:12px;border:1px solid var(--border)}
.def-card.blue{background:rgba(79,140,255,.08)}
.def-card.purple{background:rgba(124,92,255,.08)}
.def-card.teal{background:rgba(61,220,151,.08)}
.def-card.gold{background:rgba(255,177,59,.08)}
.def-card.rose{background:rgba(255,93,115,.08)}
.def-card.cyan{background:rgba(34,211,238,.08)}
.def-card.orange{background:rgba(251,146,60,.08)}
.def-card h5{margin:0 0 6px;font-size:14px;font-weight:700}
.def-card p{margin:0;font-size:13px;color:var(--muted);line-height:1.55}

/* Colorful h3 variants inside theory blocks */
.theory-block h3{font-size:16px;margin:16px 0 8px}

/* Wide colorful info banner */
.info-banner{display:flex;align-items:center;gap:16px;padding:16px 20px;border-radius:14px;margin:16px 0}
.info-banner.blue{background:linear-gradient(135deg,rgba(79,140,255,.2),rgba(124,92,255,.15));
  border:1px solid rgba(79,140,255,.35)}
.info-banner.teal{background:linear-gradient(135deg,rgba(61,220,151,.15),rgba(79,140,255,.1));
  border:1px solid rgba(61,220,151,.3)}
.info-banner.gold{background:linear-gradient(135deg,rgba(255,177,59,.18),rgba(251,146,60,.1));
  border:1px solid rgba(255,177,59,.3)}
.info-banner .icon{font-size:28px;flex-shrink:0}
.info-banner .text strong{display:block;font-size:14px;margin-bottom:4px}
.info-banner .text p{margin:0;font-size:13px;color:var(--muted)}

/* Colorful comparison table */
.compare-table{width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;
  border:1px solid var(--border);margin:12px 0}
.compare-table th{padding:12px 14px;font-size:13px;font-weight:700;text-align:left}
.compare-table th:nth-child(1){background:rgba(79,140,255,.2);color:#7eb4ff}
.compare-table th:nth-child(2){background:rgba(124,92,255,.2);color:#b3a1ff}
.compare-table th:nth-child(3){background:rgba(61,220,151,.2);color:#5ee8aa}
.compare-table td{padding:10px 14px;font-size:13px;border-top:1px solid var(--border);color:var(--text)}
.compare-table tr:nth-child(even) td{background:rgba(255,255,255,.02)}

/* Module hero color variants */
.mod-hero.hero-blue{background:radial-gradient(600px 200px at 0% 0%,rgba(79,140,255,.3),transparent),var(--panel);border:1px solid rgba(79,140,255,.3)}
.mod-hero.hero-purple{background:radial-gradient(600px 200px at 0% 0%,rgba(124,92,255,.3),transparent),var(--panel);border:1px solid rgba(124,92,255,.3)}
.mod-hero.hero-teal{background:radial-gradient(600px 200px at 0% 0%,rgba(61,220,151,.25),transparent),var(--panel);border:1px solid rgba(61,220,151,.3)}
.mod-hero.hero-gold{background:radial-gradient(600px 200px at 0% 0%,rgba(255,177,59,.25),transparent),var(--panel);border:1px solid rgba(255,177,59,.3)}
.mod-hero.hero-rose{background:radial-gradient(600px 200px at 0% 0%,rgba(255,93,115,.25),transparent),var(--panel);border:1px solid rgba(255,93,115,.3)}
.mod-hero.hero-cyan{background:radial-gradient(600px 200px at 0% 0%,rgba(34,211,238,.25),transparent),var(--panel);border:1px solid rgba(34,211,238,.3)}

/* Textbook-style quote block */
.blockquote{border-left:4px solid var(--accent2);padding:12px 18px;background:rgba(124,92,255,.08);
  border-radius:0 12px 12px 0;margin:14px 0;font-style:italic;font-size:14px;color:var(--text)}
.blockquote cite{display:block;font-style:normal;font-size:12px;color:var(--muted);margin-top:6px}

/* Colored section dividers within cards */
.sub-section{margin:20px 0 8px;padding-bottom:6px;border-bottom:2px solid transparent}
.sub-section.blue{border-color:rgba(79,140,255,.4);color:#7eb4ff}
.sub-section.purple{border-color:rgba(124,92,255,.4);color:#b3a1ff}
.sub-section.teal{border-color:rgba(61,220,151,.4);color:#5ee8aa}
.sub-section.gold{border-color:rgba(255,177,59,.4);color:#ffc96b}
.sub-section.rose{border-color:rgba(255,93,115,.4);color:#ff8fa0}
.sub-section.cyan{border-color:rgba(34,211,238,.4);color:#67e8f9}

/* Light theme overrides for theory blocks */
:root[data-theme="light"] .theory-block.blue{background:rgba(138,106,26,.08);border-color:rgba(138,106,26,.3)}
:root[data-theme="light"] .theory-block.blue::before{background:#8a6a1a}
:root[data-theme="light"] .theory-block.purple{background:rgba(124,92,255,.06);border-color:rgba(124,92,255,.25)}
:root[data-theme="light"] .theory-block.teal{background:rgba(31,138,90,.08);border-color:rgba(31,138,90,.25)}
:root[data-theme="light"] .theory-block.gold{background:rgba(166,124,0,.08);border-color:rgba(166,124,0,.25)}
:root[data-theme="light"] .blockquote{background:rgba(124,92,255,.05)}
:root[data-theme="light"] .key-insight{background:linear-gradient(135deg,rgba(138,106,26,.08),rgba(124,92,255,.05))}
:root[data-theme="light"] .defbox{background:#fff}
:root[data-theme="light"] .def-card.blue{background:rgba(138,106,26,.06)}
:root[data-theme="light"] .def-card.purple{background:rgba(124,92,255,.04)}


/* ── HORIZONTAL OVERFLOW FIX ─────────────────────────────────────────────── */
/* Prevent the page itself from scrolling horizontally */
html,body{max-width:100%;overflow-x:hidden}

/* Constrain layout wrappers */
.container{overflow-x:hidden}
.mod-wrap{min-width:0}
.card{min-width:0}

/* Make all tables scrollable within their box */
table{display:block;overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}

/* Compare-table: swap overflow:hidden to auto so it scrolls instead of clipping */
.compare-table{display:block;overflow-x:auto;overflow-y:visible;max-width:100%;-webkit-overflow-scrolling:touch}

/* Code blocks */
pre.code{overflow-x:auto;max-width:100%;white-space:pre;word-break:normal}

/* Process steps and def-grid shrink safely */
.process-step{flex-wrap:wrap}
.def-grid{min-width:0}
.def-card{min-width:0;word-break:break-word}

/* Info banners */
.info-banner{flex-wrap:wrap}

/* Theory blocks */
.theory-block{word-break:break-word}

/* Ensure images never blow out */
img,iframe,video{max-width:100%;height:auto}

/* ── LAB CHECKLIST COMPONENT ──────────────────────────────────────────── */
.lab-shell{border:1.5px solid var(--border);border-radius:14px;overflow:hidden;margin-top:6px}
.lab-hdr{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--panel);border-bottom:1px solid var(--border);gap:12px}
.lab-hdr-title{font-weight:700;font-size:14px;margin-bottom:3px;color:var(--text)}
.lab-hdr-sub{font-size:12px;color:var(--muted);line-height:1.4}
.lab-counter{font-size:28px;font-weight:800;color:var(--accent);line-height:1;white-space:nowrap;font-variant-numeric:tabular-nums;flex-shrink:0}
.lab-bar{height:3px;background:var(--border)}
.lab-fill{height:100%;background:var(--accent);transition:width .35s ease;width:0%}
.lab-items{display:flex;flex-direction:column;gap:8px;padding:14px 16px;background:var(--panel2)}
.lab-item{display:flex;align-items:flex-start;gap:12px;padding:13px 15px;background:var(--bg);border:1.5px solid var(--border);border-radius:10px;cursor:pointer;transition:border-color .2s,background .2s;user-select:none;outline:none}
.lab-item:hover{border-color:var(--accent)}
.lab-item:focus-visible{box-shadow:0 0 0 2px var(--accent)}
.lab-item.done{border-color:var(--accent)}
[data-theme="dark"] .lab-item.done{background:rgba(99,179,237,.09)}
[data-theme="light"] .lab-item.done{background:rgba(59,130,246,.07)}
.lab-cb{width:22px;height:22px;min-width:22px;border:2px solid var(--border);border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .2s;background:var(--panel2);margin-top:2px;flex-shrink:0}
.lab-item.done .lab-cb{background:var(--accent);border-color:var(--accent)}
.lab-ck{color:#fff;font-size:11px;font-weight:900;opacity:0;transition:opacity .15s}
.lab-item.done .lab-ck{opacity:1}
.lab-item-text{font-size:13.5px;line-height:1.6;flex:1;min-width:0;color:var(--text);transition:color .2s}
.lab-item.done .lab-item-text{color:var(--muted)}
.lab-foot{padding:14px 18px;background:var(--panel);border-top:1px solid var(--border);display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.lab-result{font-size:13px;font-weight:600;flex:1}
.lab-result.ok{color:#22c55e}
.lab-result.warn{color:var(--gold)}
@media(max-width:600px){.lab-counter{font-size:22px}.lab-hdr{gap:8px}}