/* CCA Exam Prep Console — design system
   Developer-tool aesthetic. Light + dark. Code surfaces stay dark in both. */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --font-sans: 'IBM Plex Sans', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Semantic accents — shared across themes (same chroma family) */
  --accent: oklch(0.66 0.14 45);      /* terracotta */
  --accent-soft: oklch(0.66 0.14 45 / 0.12);
  --good: oklch(0.70 0.15 155);       /* ✓ */
  --bad: oklch(0.63 0.19 26);         /* ✗ */
  --tip: oklch(0.78 0.13 80);         /* ★ */
  --good-soft: oklch(0.70 0.15 155 / 0.12);
  --bad-soft: oklch(0.63 0.19 26 / 0.12);
  --tip-soft: oklch(0.78 0.13 80 / 0.14);
  --info: oklch(0.66 0.12 230);       /* 🔗 analogy */
  --warn: oklch(0.62 0.16 310);       /* ⚠ common confusion */
  --info-soft: oklch(0.66 0.12 230 / 0.12);
  --warn-soft: oklch(0.62 0.16 310 / 0.12);
}

/* ---------- Light (default) ---------- */
:root, [data-theme="light"] {
  --bg: oklch(0.975 0.004 75);
  --bg-grid: oklch(0.93 0.005 75);
  --panel: oklch(0.995 0.002 75);
  --panel-2: oklch(0.965 0.004 75);
  --border: oklch(0.89 0.006 75);
  --border-strong: oklch(0.82 0.008 75);
  --text: oklch(0.27 0.01 60);
  --text-soft: oklch(0.46 0.01 60);
  --text-faint: oklch(0.62 0.008 60);
  --shadow: 0 1px 2px oklch(0.27 0.01 60 / 0.06), 0 8px 24px oklch(0.27 0.01 60 / 0.05);
  /* code surfaces stay dark */
  --code-bg: oklch(0.20 0.008 265);
  --code-panel: oklch(0.245 0.009 265);
  --code-border: oklch(0.32 0.01 265);
  --code-text: oklch(0.90 0.01 265);
  --code-dim: oklch(0.62 0.012 265);
}

/* ---------- Dark ---------- */
[data-theme="dark"] {
  --bg: oklch(0.185 0.007 265);
  --bg-grid: oklch(0.225 0.008 265);
  --panel: oklch(0.225 0.008 265);
  --panel-2: oklch(0.255 0.009 265);
  --border: oklch(0.31 0.01 265);
  --border-strong: oklch(0.40 0.012 265);
  --text: oklch(0.93 0.008 265);
  --text-soft: oklch(0.72 0.01 265);
  --text-faint: oklch(0.56 0.011 265);
  --shadow: 0 1px 2px oklch(0 0 0 / 0.3), 0 12px 32px oklch(0 0 0 / 0.32);
  --code-bg: oklch(0.155 0.007 265);
  --code-panel: oklch(0.205 0.008 265);
  --code-border: oklch(0.30 0.01 265);
  --code-text: oklch(0.91 0.01 265);
  --code-dim: oklch(0.60 0.012 265);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--accent-soft); }

/* dotted-grid backdrop for the dev-tool feel */
.app-bg {
  background-image: radial-gradient(var(--bg-grid) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: -1px -1px;
}

button { font-family: inherit; cursor: pointer; }
a { color: inherit; }

/* global page footer — verse + disclaimer */
.app-foot {
  max-width: 900px;
  margin: 40px auto 8px;
  padding: 22px 24px 4px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.foot-verse {
  font-size: 13.5px;
  font-style: italic;
  color: var(--text-soft);
  line-height: 1.6;
  margin: 0 0 14px;
}
.foot-verse-ref {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 11.5px;
  color: var(--text-faint);
}
.foot-disclaimer {
  font-size: 10px;
  line-height: 1.7;
  color: var(--text-faint);
  margin: 0 auto;
  max-width: 680px;
}
.foot-disclaimer b { color: var(--text-soft); }

.mono { font-family: var(--font-mono); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 500;
}

/* ---------- Layout shell ---------- */
.shell { display: grid; grid-template-columns: 280px 1fr; height: 100vh; overflow: hidden; }

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  min-height: 0;
}
.sb-head {
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--accent); color: oklch(0.99 0 0);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-weight: 600; font-size: 15px;
  box-shadow: inset 0 0 0 1px oklch(1 0 0 / 0.15);
}
.brand-txt b { font-size: 14px; font-weight: 600; display: block; line-height: 1.2; }
.brand-txt span { font-size: 11.5px; color: var(--text-faint); font-family: var(--font-mono); }

.sb-nav { padding: 10px 10px; overflow-y: auto; flex: 1; min-height: 0; }
.nav-group + .nav-group { margin-top: 8px; }
.nav-label {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-faint);
  padding: 10px 10px 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 8px 10px; border: none; background: transparent;
  border-radius: 8px; color: var(--text-soft); text-align: left;
  font-size: 13.5px; font-weight: 500; transition: background .12s, color .12s;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--text); }
.nav-item.active .nav-dot { background: var(--accent); }
.nav-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--border-strong); flex: none; }
.nav-key {
  margin-left: auto; font-family: var(--font-mono); font-size: 10.5px;
  color: var(--text-faint); border: 1px solid var(--border); border-radius: 5px;
  padding: 1px 5px;
}

.sb-foot { padding: 12px; border-top: 1px solid var(--border); }

/* domain nav rows */
.dnav { display: flex; flex-direction: column; gap: 1px; }
.dnav-row {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 7px 10px; border: none; background: transparent; border-radius: 7px;
  color: var(--text-soft); text-align: left; font-size: 13px; font-weight: 500;
  transition: background .12s;
}
.dnav-row:hover { background: var(--panel-2); color: var(--text); }
.dnav-row.active { background: var(--panel-2); color: var(--text); }
.dnum {
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  width: 20px; height: 20px; border-radius: 5px; flex: none;
  display: grid; place-items: center;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text-soft);
}
.dnav-row.active .dnum, .dnav-row:hover .dnum { border-color: var(--accent); color: var(--accent); }

/* ---------- Main column ---------- */
.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.topbar {
  height: 56px; flex: none; display: flex; align-items: center; gap: 14px;
  padding: 0 22px; border-bottom: 1px solid var(--border); background: var(--panel);
}
.crumbs { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-faint); display: flex; align-items: center; gap: 8px; }
.crumbs b { color: var(--text); font-weight: 600; }
.crumb-sep { color: var(--border-strong); }
.topbar-spacer { flex: 1; }
.tb-btn {
  display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 12px;
  border: 1px solid var(--border); background: var(--panel); border-radius: 8px;
  color: var(--text-soft); font-size: 12.5px; font-weight: 500; transition: all .12s;
}
.tb-btn:hover { border-color: var(--border-strong); color: var(--text); }
.tb-icon { width: 16px; height: 16px; display: block; }

/* mobile drawer controls — hidden on desktop, shown ≤820px */
.hamburger, .sb-close { display: none; }
.nav-backdrop { display: none; }

.scroll { overflow-y: auto; flex: 1; min-height: 0; }
.page { max-width: 1080px; margin: 0 auto; padding: 34px 30px 80px; }
.page-wide { max-width: 1240px; }

/* ---------- Generic bits ---------- */
.h1 { font-size: 26px; font-weight: 600; letter-spacing: -0.01em; margin: 0; }
.lede { color: var(--text-soft); font-size: 15px; line-height: 1.55; margin: 10px 0 0; max-width: 70ch; }
.section-title { font-size: 13px; font-weight: 600; letter-spacing: 0.02em; margin: 0; display: flex; align-items: center; gap: 9px; }

.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow);
}
.pill {
  display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono);
  font-size: 11px; font-weight: 500; padding: 3px 8px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--text-soft); background: var(--panel-2);
}
.pill.accent { color: var(--accent); border-color: color-mix(in oklch, var(--accent) 45%, var(--border)); background: var(--accent-soft); }

.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 16px;
  border-radius: 9px; border: 1px solid transparent; font-size: 13.5px; font-weight: 600;
  transition: all .12s;
}
.btn-primary { background: var(--accent); color: oklch(0.99 0 0); box-shadow: inset 0 0 0 1px oklch(1 0 0 / 0.12); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost { background: var(--panel); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--border-strong); }

/* ---------- Code / console surface ---------- */
.console {
  background: var(--code-bg); border: 1px solid var(--code-border); border-radius: 12px;
  overflow: hidden; font-family: var(--font-mono);
}
.console-bar {
  display: flex; align-items: center; gap: 8px; padding: 9px 13px;
  border-bottom: 1px solid var(--code-border); background: var(--code-panel);
}
.tl { width: 11px; height: 11px; border-radius: 50%; }
.tl.r { background: oklch(0.65 0.18 25); } .tl.y { background: oklch(0.80 0.13 80); } .tl.g { background: oklch(0.72 0.15 150); }
.console-name { margin-left: 6px; font-size: 11.5px; color: var(--code-dim); }
.src-badge { margin-left: 10px; font-family: var(--font-mono); font-size: 10.5px; padding: 2px 7px; border-radius: 999px; border: 1px solid; }
.src-badge.live { color: oklch(0.80 0.13 150); border-color: color-mix(in oklch, oklch(0.72 0.15 150) 45%, transparent); background: oklch(0.72 0.15 150 / 0.12); }
.src-badge.simulated { color: var(--code-dim); border-color: var(--code-border); }
.console-body { padding: 14px 16px; font-size: 13px; line-height: 1.7; min-height: 120px; }
.cl { white-space: pre-wrap; display: flex; gap: 8px; }
.cl-info { color: var(--code-text); }
.cl-cmd { color: oklch(0.78 0.12 200); }
.cl-dim { color: var(--code-dim); }
.cl-head { color: oklch(0.99 0 0); font-weight: 600; margin: 4px 0 2px; }
.cl-bad, .cl-good, .cl-tip {
  border-radius: 8px; padding: 7px 11px; margin: 4px 0; border: 1px solid;
}
.cl-bad { background: var(--bad-soft); border-color: color-mix(in oklch, var(--bad) 40%, transparent); color: oklch(0.82 0.1 26); }
.cl-good { background: var(--good-soft); border-color: color-mix(in oklch, var(--good) 40%, transparent); color: oklch(0.85 0.12 155); }
.cl-tip { background: var(--tip-soft); border-color: color-mix(in oklch, var(--tip) 45%, transparent); color: oklch(0.86 0.11 82); }
.cl-glyph { font-weight: 700; flex: none; }
.cursor { display: inline-block; width: 8px; height: 15px; background: var(--accent); vertical-align: text-bottom; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Dashboard ---------- */
.grid-domains { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.dcard { padding: 20px; display: flex; flex-direction: column; gap: 14px; cursor: pointer; transition: border-color .14s, transform .14s; }
.dcard:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.dcard-top { display: flex; align-items: flex-start; gap: 13px; }
.dcard-num {
  font-family: var(--font-mono); font-weight: 600; font-size: 14px; flex: none;
  width: 38px; height: 38px; border-radius: 9px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); border: 1px solid color-mix(in oklch, var(--accent) 30%, transparent);
}
.dcard h3 { margin: 0; font-size: 15.5px; font-weight: 600; line-height: 1.25; }
.dcard .blurb { margin: 5px 0 0; font-size: 12.5px; color: var(--text-soft); line-height: 1.5; }
.weightbar { height: 6px; border-radius: 999px; background: var(--panel-2); overflow: hidden; border: 1px solid var(--border); }
.weightbar > i { display: block; height: 100%; background: var(--accent); border-radius: 999px; }
.dcard-foot { display: flex; align-items: center; justify-content: space-between; font-family: var(--font-mono); font-size: 11.5px; color: var(--text-faint); }
.prog-mini { display: flex; align-items: center; gap: 7px; }
.prog-track { width: 64px; height: 5px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); overflow: hidden; }
.prog-track > i { display: block; height: 100%; background: var(--good); }

.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { padding: 16px 18px; }
.stat .n { font-family: var(--font-mono); font-size: 28px; font-weight: 600; letter-spacing: -0.02em; }
.stat .k { font-size: 12px; color: var(--text-faint); margin-top: 2px; }
.stat .n.accent { color: var(--accent); }

.themes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.theme { padding: 18px; }
.theme .tnum { font-family: var(--font-mono); font-size: 12px; color: var(--accent); font-weight: 600; }
.theme h4 { margin: 8px 0 7px; font-size: 14.5px; font-weight: 600; }
.theme p { margin: 0; font-size: 12.5px; color: var(--text-soft); line-height: 1.55; }

/* ---------- Demo / task view ---------- */
.demo-layout { display: grid; grid-template-columns: 1fr 320px; gap: 22px; align-items: start; }
.demo-main { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.demo-side { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 0; }

.concept { padding: 20px 22px; }
.concept p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--text); }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cmp { padding: 14px 15px; border-radius: 11px; border: 1px solid var(--border); }
.cmp.bad { background: var(--bad-soft); border-color: color-mix(in oklch, var(--bad) 30%, var(--border)); }
.cmp.good { background: var(--good-soft); border-color: color-mix(in oklch, var(--good) 30%, var(--border)); }
.cmp .lbl { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 0.06em; display: flex; align-items: center; gap: 6px; }
.cmp.bad .lbl { color: var(--bad); }
.cmp.good .lbl { color: var(--good); }
.cmp.warn { background: var(--warn-soft); border-color: color-mix(in oklch, var(--warn) 32%, var(--border)); }
.cmp.warn .lbl { color: var(--warn); }
.cmp p { margin: 8px 0 0; font-size: 13px; line-height: 1.5; color: var(--text); }

.analogy-card { padding: 18px 22px; background: var(--info-soft); border-color: color-mix(in oklch, var(--info) 28%, var(--border)); }
.analogy-card .eyebrow { color: var(--info); }
.analogy-card p { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--text); }

.tipbar { display: flex; gap: 11px; padding: 14px 16px; border-radius: 11px; background: var(--tip-soft); border: 1px solid color-mix(in oklch, var(--tip) 40%, var(--border)); }
.tipbar .star { color: var(--tip); font-size: 16px; flex: none; }
.tipbar p { margin: 0; font-size: 13.5px; line-height: 1.5; }
.tipbar b { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-faint); display: block; margin-bottom: 3px; }

.side-card { padding: 16px 17px; }
.side-card h5 { margin: 0 0 12px; font-size: 12px; font-family: var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-faint); }
.link-row { display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 10px; border-radius: 9px; border: 1px solid var(--border); background: var(--panel-2); text-align: left; transition: border-color .12s; margin-bottom: 8px; }
.link-row:last-child { margin-bottom: 0; }
.link-row:hover { border-color: var(--accent); }
.link-row .lid { font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: var(--accent); flex: none; }
.link-row .ltxt { font-size: 12.5px; color: var(--text); line-height: 1.35; }
.link-row .larr { margin-left: auto; color: var(--text-faint); flex: none; }

.qlink { padding: 11px 12px; border: 1px solid var(--border); border-radius: 9px; margin-bottom: 9px; cursor: pointer; transition: border-color .12s; background: var(--panel-2); }
.qlink:last-child { margin-bottom: 0; }
.qlink:hover { border-color: var(--accent); }
.qlink .qmeta { display: flex; align-items: center; gap: 7px; margin-bottom: 6px; }
.qlink .qtag { font-family: var(--font-mono); font-size: 10px; font-weight: 600; color: var(--accent); border: 1px solid color-mix(in oklch, var(--accent) 35%, transparent); border-radius: 5px; padding: 1px 5px; }
.qlink .qp { font-size: 12.5px; line-height: 1.45; color: var(--text); margin: 0; }

/* ---------- Quiz inline ---------- */
.qopt { display: flex; align-items: flex-start; gap: 11px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); margin-bottom: 9px; text-align: left; width: 100%; font-size: 13.5px; color: var(--text); transition: all .12s; line-height: 1.45; }
.qopt:hover { border-color: var(--border-strong); }
.qopt .qk { font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: var(--text-faint); flex: none; width: 18px; }
.qopt.correct { background: var(--good-soft); border-color: var(--good); }
.qopt.wrong { background: var(--bad-soft); border-color: var(--bad); }
.qopt.correct .qk { color: var(--good); }
.qopt.wrong .qk { color: var(--bad); }
.qopt:disabled { cursor: default; }
.explain { padding: 13px 15px; border-radius: 10px; background: var(--panel-2); border: 1px solid var(--border); font-size: 13px; line-height: 1.55; margin-top: 4px; }
.explain b { color: var(--accent); }

/* ---------- Scenarios ---------- */
.scn { padding: 22px; display: flex; flex-direction: column; gap: 16px; margin-bottom: 18px; }
.scn-head { display: flex; align-items: flex-start; gap: 14px; }
.scn-n { font-family: var(--font-mono); font-weight: 600; font-size: 16px; width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); border: 1px solid color-mix(in oklch, var(--accent) 30%, transparent); flex: none; }
.scn-head h3 { margin: 0; font-size: 17px; font-weight: 600; }
.scn-head p { margin: 7px 0 0; font-size: 13.5px; color: var(--text-soft); line-height: 1.55; }
.scn-dtags { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.steps { display: flex; flex-direction: column; gap: 0; }
.step { display: grid; grid-template-columns: 28px 1fr auto; gap: 12px; align-items: start; padding: 11px 0; border-top: 1px dashed var(--border); }
.step:first-child { border-top: none; }
.step .sdot { width: 26px; height: 26px; border-radius: 7px; background: var(--panel-2); border: 1px solid var(--border); display: grid; place-items: center; font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: var(--text-soft); }
.step .stxt b { font-size: 13.5px; font-weight: 600; }
.step .stxt span { display: block; font-size: 12.5px; color: var(--text-soft); margin-top: 2px; line-height: 1.45; }
.step .slink { font-family: var(--font-mono); font-size: 11px; color: var(--accent); border: 1px solid color-mix(in oklch, var(--accent) 35%, transparent); border-radius: 6px; padding: 3px 7px; background: var(--accent-soft); white-space: nowrap; align-self: center; }
.step .slink:hover { filter: brightness(1.05); }

/* ---------- Cheat sheet ---------- */
.cheat-group { margin-bottom: 26px; }
.cheat-group h3 { font-size: 14px; font-weight: 600; margin: 0 0 12px; display: flex; align-items: center; gap: 10px; }
.cheat-group .cg-w { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); margin-left: auto; }
.cheat-list { display: flex; flex-direction: column; gap: 8px; }
.cheat-item { display: flex; align-items: center; gap: 13px; padding: 13px 16px; }
.cheat-item .ci-mark { font-family: var(--font-mono); font-size: 12px; color: var(--accent); flex: none; font-weight: 600; }
.cheat-item .ci-fact { font-size: 13.5px; line-height: 1.45; flex: 1; }
.cheat-item .ci-link { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); border: 1px solid var(--border); border-radius: 6px; padding: 3px 8px; white-space: nowrap; transition: all .12s; }
.cheat-item:hover .ci-link { border-color: var(--accent); color: var(--accent); }

/* misc */
.divider { height: 1px; background: var(--border); margin: 0; border: none; }
.spacer-l { height: 30px; }
.spacer-m { height: 20px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.muted { color: var(--text-soft); }
.kbd { font-family: var(--font-mono); font-size: 11px; border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; color: var(--text-soft); }

@media (max-width: 1080px) {
  .demo-layout { grid-template-columns: 1fr; }
  .demo-side { position: static; }
  .grid-domains, .themes, .stat-row { grid-template-columns: 1fr 1fr; }
  .course-map { grid-template-columns: 1fr; }
}

/* ===================== Course features ===================== */

/* generic quiz bits (used by .qcard lessons + .exam-q) */
.qmeta { display: flex; align-items: center; gap: 7px; margin-bottom: 8px; }
.qtag { font-family: var(--font-mono); font-size: 10px; font-weight: 600; color: var(--accent); border: 1px solid color-mix(in oklch, var(--accent) 35%, transparent); border-radius: 5px; padding: 1px 6px; }
.qp { font-size: 13px; line-height: 1.5; color: var(--text); margin: 0 0 10px; }
.qsolved { font-family: var(--font-mono); font-size: 10px; font-weight: 600; color: var(--good); border: 1px solid color-mix(in oklch, var(--good) 35%, transparent); background: var(--good-soft); border-radius: 5px; padding: 1px 6px; margin-left: auto; }
.qsolved.bad { color: var(--bad); border-color: color-mix(in oklch, var(--bad) 35%, transparent); background: var(--bad-soft); }
.qcard { padding: 2px 0; }
.qhint { font-size: 12.5px; line-height: 1.5; color: var(--warn); background: var(--warn-soft); border: 1px solid color-mix(in oklch, var(--warn) 30%, var(--border)); border-radius: 9px; padding: 9px 12px; margin-top: 2px; }
.side-hint { font-size: 12px; color: var(--text-faint); margin: -6px 0 12px; line-height: 1.45; }

/* progress bars */
.minibar { display: inline-block; height: 6px; min-width: 70px; border-radius: 99px; background: var(--panel-2); border: 1px solid var(--border); overflow: hidden; }
.minibar > i { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width .4s ease; }
.tb-progress { display: flex; align-items: center; gap: 8px; margin-right: 4px; }
.greet { font-size: 12.5px; color: var(--text-soft); padding: 0 6px; white-space: nowrap; }
.sb-progress { height: 6px; border-radius: 99px; background: var(--panel-2); border: 1px solid var(--border); overflow: hidden; margin: 0 4px 10px; }
.sb-progress > i { display: block; height: 100%; background: var(--good); border-radius: 99px; transition: width .4s ease; }
.nav-check { color: var(--good); flex: none; }

.progress-panel { padding: 18px 20px; }
.bigbar { height: 12px; border-radius: 99px; background: var(--panel-2); border: 1px solid var(--border); overflow: hidden; }
.bigbar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), color-mix(in oklch, var(--accent) 55%, var(--good))); border-radius: 99px; transition: width .5s ease; }

/* shared action row */
.start-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* Start here */
.namebox { padding: 18px 20px; margin: 18px 0 6px; display: flex; flex-direction: column; gap: 7px; max-width: 520px; }
.namebox label { font-size: 13px; font-weight: 600; color: var(--text); }
.namebox input { font: inherit; font-size: 14px; padding: 10px 12px; border-radius: 9px; border: 1px solid var(--border-strong); background: var(--panel-2); color: var(--text); }
.namebox input:focus { outline: none; border-color: var(--accent); }
.namebox small { font-size: 11.5px; color: var(--text-faint); }
.course-map { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.map-card { padding: 16px 18px; display: flex; gap: 13px; align-items: flex-start; }
.map-ic { width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); border: 1px solid color-mix(in oklch, var(--accent) 28%, transparent); flex: none; }
.map-card h4 { margin: 0 0 4px; font-size: 14px; }
.map-card p { margin: 0; font-size: 12.5px; color: var(--text-soft); line-height: 1.5; }
.anatomy { padding: 8px 6px; }
.anat-step { display: grid; grid-template-columns: 30px 150px 1fr; gap: 12px; align-items: center; padding: 11px 14px; border-top: 1px dashed var(--border); }
.anat-step:first-child { border-top: none; }
.anat-n { width: 24px; height: 24px; border-radius: 7px; background: var(--panel-2); border: 1px solid var(--border); display: grid; place-items: center; font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: var(--text-soft); }
.anat-t { font-size: 13.5px; font-weight: 600; }
.anat-d { font-size: 12.5px; color: var(--text-soft); line-height: 1.45; }

/* Mock exam */
.exam-bar { display: flex; align-items: center; gap: 12px; margin: 6px 0 4px; }
.exam-q { padding: 18px 20px; margin-bottom: 14px; }
.exam-result { display: flex; align-items: center; gap: 18px; padding: 18px 22px; border-radius: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.exam-result.pass { background: var(--good-soft); border: 1px solid color-mix(in oklch, var(--good) 40%, var(--border)); }
.exam-result.fail { background: var(--bad-soft); border: 1px solid color-mix(in oklch, var(--bad) 40%, var(--border)); }
.exam-result .score { font-size: 38px; font-weight: 700; line-height: 1; }
.exam-result.pass .score { color: var(--good); }
.exam-result.fail .score { color: var(--bad); }
.exam-result .score span { font-size: 15px; color: var(--text-faint); font-weight: 500; }
.exam-result .score-txt { display: flex; flex-direction: column; gap: 3px; }
.exam-result .score-txt b { font-size: 15px; }
.exam-result .score-txt span { font-size: 12.5px; color: var(--text-soft); }
.exam-result .btn { margin-left: auto; }

/* mock-exam setup + timer + per-domain breakdown */
.setup-card { border: 1px solid var(--border); background: var(--panel); border-radius: 14px; padding: 20px 22px; margin-top: 8px; }
.setup-row { display: flex; align-items: center; gap: 16px; padding: 10px 0; flex-wrap: wrap; }
.setup-row + .setup-row { border-top: 1px solid var(--border); }
.setup-label { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); width: 72px; flex: none; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { border: 1px solid var(--border); background: var(--panel-2); color: var(--text-soft); border-radius: 999px; padding: 7px 14px; font-size: 13px; transition: all .12s; }
.chip:hover { border-color: var(--border-strong); }
.chip.on { background: var(--accent-soft); border-color: color-mix(in oklch, var(--accent) 45%, var(--border)); color: var(--accent); font-weight: 600; }
.setup-foot { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.setup-hint { font-size: 11.5px; color: var(--text-faint); }
.exam-timer { font-size: 13px; font-weight: 600; color: var(--text-soft); border: 1px solid var(--border); border-radius: 8px; padding: 4px 10px; background: var(--panel-2); }
.exam-timer.low { color: var(--bad); border-color: color-mix(in oklch, var(--bad) 45%, var(--border)); background: var(--bad-soft); }
.dombreak { border: 1px solid var(--border); background: var(--panel); border-radius: 12px; padding: 14px 18px; margin-bottom: 14px; }
.dombreak-h { font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--text-faint); margin-bottom: 10px; }
.dombar-row { display: flex; align-items: center; gap: 12px; padding: 5px 0; cursor: pointer; }
.dombar-row:hover .dombar-name { color: var(--accent); }
.dombar-name { width: 118px; flex: none; font-size: 13px; color: var(--text); }
.dombar-track { flex: 1; height: 8px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); overflow: hidden; }
.dombar-track i { display: block; height: 100%; border-radius: 999px; }
.dombar-track i.ok { background: var(--good); }
.dombar-track i.low { background: var(--bad); }
.dombar-num { width: 44px; flex: none; text-align: right; font-size: 12px; color: var(--text-soft); }
.qopt.chosen { background: var(--accent-soft); border-color: color-mix(in oklch, var(--accent) 45%, var(--border)); }
.qopt.chosen .qk { color: var(--accent); }
.qref { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--border); font-size: 12px; color: var(--text-faint); line-height: 1.5; }

/* Course complete + certificate */
.complete-page { position: relative; }
.complete-inner { max-width: 680px; margin: 10px auto 40px; text-align: center; }
.cert { position: relative; padding: 38px 40px 30px; border-radius: 18px; background: var(--panel); border: 1px solid color-mix(in oklch, var(--accent) 30%, var(--border)); box-shadow: var(--shadow); overflow: hidden; }
.cert::before { content: ""; position: absolute; inset: 8px; border: 1.5px solid color-mix(in oklch, var(--accent) 22%, transparent); border-radius: 12px; pointer-events: none; }
.cert-ribbon { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.cert-badge { width: 70px; height: 70px; margin: 0 auto 14px; border-radius: 50%; display: grid; place-items: center; color: var(--accent); background: var(--accent-soft); border: 1.5px solid color-mix(in oklch, var(--accent) 40%, transparent); }
.cert-pre { margin: 0; font-size: 13px; color: var(--text-faint); }
.cert-name { font-size: 32px; margin: 6px 0 10px; line-height: 1.1; }
.cert-body { margin: 0 auto 16px; font-size: 14.5px; color: var(--text-soft); line-height: 1.6; max-width: 440px; }
.cert-body b { color: var(--text); }
.cert-stats { font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); padding-top: 14px; border-top: 1px dashed var(--border); }
.cert-foot { display: flex; justify-content: space-between; margin-top: 18px; font-size: 11.5px; color: var(--text-faint); }
.congrats { margin: 26px 0 8px; font-size: 24px; }
.congrats-sub { margin: 0 auto 22px; max-width: 520px; font-size: 14px; color: var(--text-soft); line-height: 1.6; }

/* confetti */
.confetti { position: fixed; inset: 0; pointer-events: none; overflow: hidden; z-index: 40; }
.confetti > i { position: absolute; top: -14px; border-radius: 2px; opacity: 0.9; animation-name: confetti-fall; animation-timing-function: cubic-bezier(.3,.2,.6,1); animation-iteration-count: 1; animation-fill-mode: forwards; }
@keyframes confetti-fall { 0% { transform: translateY(0) rotate(0); opacity: 1; } 100% { transform: translateY(108vh) rotate(680deg); opacity: 0.85; } }

/* ---------- Mobile: sidebar becomes a slide-in drawer ---------- */
@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }        /* main column takes the full width */
  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 60;
    width: 284px; max-width: 86vw;
    transform: translateX(-100%);
    transition: transform .22s ease;
    box-shadow: 0 0 40px oklch(0 0 0 / 0.25);
  }
  .sidebar.open { transform: translateX(0); }
  .nav-backdrop { display: block; position: fixed; inset: 0; z-index: 50; background: oklch(0 0 0 / 0.45); }

  .hamburger {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; flex: none; padding: 0;
    border: 1px solid var(--border); background: var(--panel); border-radius: 9px;
    color: var(--text);
  }
  .sb-head { display: flex; align-items: center; justify-content: space-between; }
  .sb-close {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; flex: none; padding: 0; margin-left: 8px;
    border: 1px solid var(--border); background: var(--panel); border-radius: 8px; color: var(--text-soft);
  }

  .topbar { padding: 0 12px; gap: 10px; }
  .greet { display: none; }                       /* free up room on narrow screens */
  .page { padding: 22px 16px 64px; }
}

@media print {
  /* default the certificate PDF/print to landscape */
  @page { size: landscape; margin: 12mm; }
  .sidebar, .topbar, .confetti, .congrats, .congrats-sub, .start-actions, .app-foot { display: none !important; }
  /* collapse the app's grid/flex chrome so the cert can use the full page width
     (otherwise the hidden sidebar's 280px grid column squeezes it into a strip) */
  .shell { display: block !important; height: auto !important; overflow: visible !important; }
  .main { display: block !important; }
  .scroll { overflow: visible !important; height: auto !important; }
  .page { max-width: none !important; padding: 0 !important; }
  .app-bg { background-image: none !important; }
  /* collapse the document to the certificate's height so no blank 2nd page prints */
  html, body { height: auto !important; }
  .complete-page { display: block !important; min-height: 0 !important; }
  .complete-inner { max-width: none !important; width: 100%; margin: 0 auto !important; }
  /* the certificate must stay on ONE page — never split it across sheets */
  .cert {
    box-shadow: none;
    border-color: #bbb;
    margin: 8mm auto 0;
    max-width: 860px;
    padding: 54px 64px 44px;
    break-inside: avoid;
    page-break-inside: avoid;
  }
  .cert::before { inset: 12px; }
  .cert-ribbon { font-size: 14px; margin-bottom: 20px; }
  .cert-badge { width: 92px; height: 92px; margin-bottom: 20px; }
  .cert-pre { font-size: 16px; }
  .cert-name { font-size: 46px; margin: 12px 0 14px; }
  .cert-body { font-size: 19px; max-width: 620px; margin-bottom: 22px; }
  .cert-stats { font-size: 15px; padding-top: 20px; }
  .cert-foot { font-size: 14px; margin-top: 24px; }
}