/* PyTrail. Colors follow apps/python-practice.html so the two apps look related. */
:root {
  /* Purple marks the task and the student's answers; gold marks help and rewards. */
  --bg: #F6F4F1;
  --surface: #FFFFFF;
  --surface-2: #EEEBE6;
  --code-inline: #EEEBE6;
  --ink: #1F1B24;
  --muted: #5A5462;
  --line: #DDD8D0;
  --line-strong: #8A8393;
  --accent: #450084;
  --accent-ink: #FFFFFF;
  --accent-soft: #F0E8FA;
  --gold: #CBB677;
  --gold-soft: #F8F1DD;
  --gold-strong: #9C7F25;
  --shown: #6B4D00;
  --ok: #1B6E3E;
  --ok-soft: #E3F3EA;
  --bad: #A61F15;
  --bad-soft: #FCE9E7;
  --danger: #A61F15;
  --danger-ink: #FFFFFF;
  --snake: #3E8E46;
  --snake-dark: #2F6B34;
  --tok-kw: #6B1FB8;
  --tok-fn: #7D5000;
  --tok-str: #1C6440;
  --tok-num: #A34400;
  --tok-com: #6B6577;
  --code-bg: #FAF9F7;
  --term-bg: #1E1A26;
  --term-ink: #ECE7F5;
  --shadow: 0 6px 18px rgba(40, 30, 50, 0.14);
  --ui: "Atkinson Hyperlegible", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #151418; --surface: #1E1C22; --surface-2: #2A2730; --code-inline: #3D3947; --ink: #EEEBF2; --muted: #B4AEBD;
    --line: #3B3742; --line-strong: #7D7787; --accent: #C4A5F7; --accent-ink: #1A1026; --accent-soft: #2F2541;
    --gold: #D9C78E; --gold-soft: #2F2A1C; --gold-strong: #D9C78E; --shown: #E8CF8A;
    --ok: #6BD49A; --ok-soft: #173325; --bad: #FF9483; --bad-soft: #3A1C1A; --danger: #FF9483; --danger-ink: #1F1B24;
    --snake: #5DB866; --snake-dark: #45914D;
    --tok-kw: #CDAEFF; --tok-fn: #E8C882; --tok-str: #8FD9A8; --tok-num: #FFB27F; --tok-com: #A39DAD;
    --code-bg: #19171D; --term-bg: #0E0D10; --term-ink: #ECE7F5;
    --shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #151418; --surface: #1E1C22; --surface-2: #2A2730; --code-inline: #3D3947; --ink: #EEEBF2; --muted: #B4AEBD;
  --line: #3B3742; --line-strong: #7D7787; --accent: #C4A5F7; --accent-ink: #1A1026; --accent-soft: #2F2541;
  --gold: #D9C78E; --gold-soft: #2F2A1C; --gold-strong: #D9C78E; --shown: #E8CF8A;
  --ok: #6BD49A; --ok-soft: #173325; --bad: #FF9483; --bad-soft: #3A1C1A; --danger: #FF9483; --danger-ink: #1F1B24;
  --snake: #5DB866; --snake-dark: #45914D;
  --tok-kw: #CDAEFF; --tok-fn: #E8C882; --tok-str: #8FD9A8; --tok-num: #FFB27F; --tok-com: #A39DAD;
  --code-bg: #19171D; --term-bg: #0E0D10; --term-ink: #ECE7F5;
  --shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--ui); font-size: 16px; line-height: 1.5; font-variant-ligatures: none;
}
button, input, textarea { font: inherit; color: inherit; }
a { color: var(--accent); }
a[target="_blank"]::after { content: "\2197"; font-size: 0.8em; margin-left: 1px; }   /* ↗: opens in a new tab */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
/* On phones, CodeMirror types into a contenteditable div; the editor's border shows its focus instead */
.CodeMirror-code:focus-visible { outline: none; }
[hidden] { display: none !important; }

code, pre, kbd, textarea, .CodeMirror, .item input, .blank { font-family: var(--mono); font-feature-settings: "calt" 0, "liga" 0; }
code, pre, kbd { font-size: 0.9em; }
:not(pre) > code { background: var(--code-inline); padding: 0.05em 0.3em; border-radius: 4px; white-space: nowrap; }
pre {
  margin: 0; padding: 10px 12px; background: var(--code-bg); border: 1px solid var(--line);
  border-radius: 8px; overflow-x: auto; line-height: 1.45; tab-size: 4;
}
pre code { background: none; padding: 0; font-size: 0.88rem; }
kbd { font-size: 0.78em; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 0 4px; background: var(--surface-2); }

/* Syntax colors, shared by static code and CodeMirror */
.t-kw, .cm-s-pytrail .cm-keyword { color: var(--tok-kw); font-weight: 600; }
.t-fn, .cm-s-pytrail .cm-builtin { color: var(--tok-fn); }
.t-str, .cm-s-pytrail .cm-string { color: var(--tok-str); }
.t-num, .cm-s-pytrail .cm-number { color: var(--tok-num); }
.t-com, .cm-s-pytrail .cm-comment { color: var(--tok-com); font-style: italic; }
.cm-s-pytrail .cm-def { color: var(--ink); font-weight: 600; }
.cm-s-pytrail .cm-variable, .cm-s-pytrail .cm-variable-2, .cm-s-pytrail .cm-property, .cm-s-pytrail .cm-operator { color: var(--ink); }

/* Header */
header.top {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.top-inner {
  max-width: 1240px; margin: 0 auto; padding: 10px 20px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px;
}
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--accent); font-weight: 700; font-size: 1.2rem; }
.brand svg { width: 34px; height: 34px; flex: none; }
.meter { flex: 1 1 180px; display: flex; align-items: center; gap: 10px; min-width: 160px; color: var(--muted); font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.bar { flex: 1; height: 8px; border-radius: 99px; background: var(--surface-2); overflow: hidden; display: flex; }
.bar span { display: block; height: 100%; }
.bar .solved { background: var(--accent); }
.bar .shown { background: var(--gold-strong); }
.actions { display: flex; gap: 8px; }
.btn.icon { padding: 7px 9px; }
#progress-button { position: relative; }
#progress-button.needs-info::after { content: ""; position: absolute; top: -4px; right: -4px; width: 10px; height: 10px;
  border-radius: 50%; background: var(--gold-strong); border: 2px solid var(--bg); }
.ask { padding: 10px 14px; border-radius: 10px; background: var(--gold-soft); border: 1px solid var(--gold); }
.ask p { margin: 0; }
.btn.icon svg { width: 18px; height: 18px; display: block; }

.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--surface); cursor: pointer; text-decoration: none;
  color: var(--ink); font-weight: 700; font-size: 0.95rem; line-height: 1.2;
}
/* Every button gets the same hover: its border and a faint glow, in the button's color */
.btn { --ring: var(--accent); }
.btn:hover:not(:disabled) { border-color: var(--ring); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ring) 20%, transparent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.quiet { background: transparent; }
.btn.small { padding: 3px 10px; font-size: 0.82rem; }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn.show { background: var(--gold-soft); border: 1px dashed var(--gold-strong); color: var(--shown); --ring: var(--gold-strong); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: var(--danger-ink); --ring: var(--danger); }
.btn.danger-outline { color: var(--bad); border-color: var(--bad); --ring: var(--bad); }
.confirm { margin-top: 10px; padding: 12px 14px; border-radius: 10px; background: var(--bad-soft); border: 1px solid var(--bad); }
.confirm p { margin: 0 0 10px; }
.confirm .field { margin-bottom: 10px; max-width: 260px; }
.btn.show:hover { border-style: solid; }
.btn .count { font-weight: 400; color: var(--muted); }

/* Page */
main { max-width: 1240px; margin: 0 auto; padding: 20px 20px 48px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 20px; min-width: 0; }
.eyebrow { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose p, .prose ul, .prose table, .prose pre { margin: 0 0 12px; }
.prose ul { padding-left: 22px; }
.prose li { margin: 3px 0; }
.prose table { border-collapse: collapse; font-size: 0.92rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: 4px 10px; text-align: left; }
.prose th { background: var(--surface-2); }
.prose td code { white-space: normal; }   /* long code in a table cell wraps at its spaces instead of widening the table */

/* Level */
.play { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 20px; align-items: start; }
.play.wide { grid-template-columns: minmax(0, 1fr); }   /* code too wide for two columns: the task goes under the lesson */
.lesson h1 { margin: 6px 0 12px; font-size: 1.6rem; line-height: 1.2; text-wrap: balance; }
.chapter-dots { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; }
.dot {
  width: 30px; height: 30px; border-radius: 7px; border: 1px solid var(--line); background: var(--surface);
  display: grid; place-items: center; font-size: 0.8rem; font-weight: 700; cursor: pointer;
  text-decoration: none; color: var(--ink); font-variant-numeric: tabular-nums;
}
.dot:hover { border-color: var(--accent); }
.dot.solved { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.dot.shown { background: var(--gold-soft); border-color: var(--gold-strong); color: var(--shown); }
.dot[aria-current="page"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.terms { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--line); }
.terms dl { margin: 6px 0 0; display: grid; gap: 6px; }
.terms dt { font-weight: 700; display: inline; }
.terms dd { margin: 0; display: inline; color: var(--muted); }
.terms div { line-height: 1.4; }

.work { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }   /* wide code scrolls, not the page */
.task { padding: 12px 14px; background: var(--accent-soft); border-radius: 10px; }
.task .eyebrow { color: var(--accent); }
.label { font-size: 0.82rem; color: var(--muted); font-weight: 700; margin-bottom: 4px; }

.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.controls .keys { color: var(--muted); font-size: 0.82rem; margin-left: auto; }
.record { font-size: 0.85rem; color: var(--muted); }

.feedback { border-radius: 10px; padding: 12px 14px; display: flex; gap: 12px; align-items: flex-start; }
.feedback.bad { background: var(--bad-soft); color: var(--ink); border: 1px solid color-mix(in srgb, var(--bad) 40%, transparent); }
.feedback.ok { background: var(--surface); border: 1px solid var(--line); border-left: 5px solid var(--ok); }
.feedback.info { background: var(--surface-2); border: 1px solid var(--line); }
.feedback svg { width: 52px; height: 52px; flex: none; margin-top: -4px; }
.feedback .msg { flex: 1; min-width: 0; }
.feedback .msg > :first-child { margin-top: 0; }
.feedback .msg p { margin: 0 0 8px; }
.feedback .msg p:last-child { margin-bottom: 0; }
.feedback .msg p:has(.btn) { margin-top: 12px; }
.feedback strong.ok-title { color: var(--ok); }
.tool-added { margin-top: 8px; background: var(--gold-soft); border: 1px solid var(--gold); border-radius: 8px; padding: 8px 10px; }
.tool-added .label { color: var(--shown); }
.tool-added pre { background: var(--code-bg); }
.pop { animation: pop 0.35s ease-out; }
@keyframes pop { from { transform: scale(0.96); opacity: 0.4; } to { transform: scale(1); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .pop { animation: none; } }
.new-chapter { margin: -4px 0 16px; padding: 12px 14px; border-radius: 10px; background: var(--gold-soft); border-left: 5px solid var(--gold); }
.new-chapter .eyebrow { color: var(--shown); }
.new-chapter p { margin: 4px 0 0; }
.new-chapter .new-chapter-title { font-weight: 700; font-size: 1.1rem; }
.confetti { position: fixed; inset: 0; pointer-events: none; overflow: hidden; z-index: 100; }
.confetti span { position: absolute; top: -12px; width: 8px; height: 14px; border-radius: 2px; animation: confetti-fall linear forwards; }
@keyframes confetti-fall { to { transform: translate(var(--drift), 105vh) rotate(var(--spin)); } }

.hint-box, .reveal { border-radius: 10px; padding: 12px 14px; background: var(--gold-soft); border: 1px solid var(--gold); }
.hint-box .eyebrow, .reveal .eyebrow { color: var(--shown); }
.reveal { border: 1px dashed var(--gold-strong); }
.reveal pre { background: var(--surface); }

.terminal pre { background: var(--term-bg); color: var(--term-ink); border-color: var(--term-bg); min-height: 2.6em; white-space: pre-wrap; }
.expected pre { white-space: pre-wrap; }

.pager { display: flex; justify-content: space-between; gap: 8px; padding-top: 6px; border-top: 1px solid var(--line); }

/* Editor */
.editor { border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; background: var(--code-bg); }
.editor:focus-within { border-color: var(--accent); }
.CodeMirror { height: auto; min-height: 7.5em; font-family: var(--mono); font-size: 0.92rem; background: var(--code-bg); color: var(--ink); }
.editor.one-line .CodeMirror { min-height: 0; }
.CodeMirror-scroll { min-height: inherit; }
.CodeMirror-gutters { background: var(--surface-2); border-right: 1px solid var(--line); }
.CodeMirror-linenumber { color: var(--muted); }
.CodeMirror-cursor { border-left-color: var(--ink); }
.CodeMirror-selected, .CodeMirror-focused .CodeMirror-selected { background: var(--accent-soft); }
.CodeMirror .error-line { background: var(--bad-soft); }
.CodeMirror-matchingbracket { color: var(--ok) !important; font-weight: 700; }

/* Predict */
.items { display: grid; gap: 8px; }
.item { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 22px; gap: 10px; align-items: center; }
.item code { font-size: 0.92rem; overflow-x: auto; }
.item input, .answer-box {
  width: 100%; padding: 6px 9px; border: 1px solid var(--line-strong); border-radius: 7px; background: var(--code-bg);
  font-family: var(--mono); font-size: 0.92rem;
}
.answer-box { min-height: 7em; resize: vertical; line-height: 1.45; }
.item input:focus, .answer-box:focus, .blank:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 2px var(--accent-soft); }
.item .mark { font-weight: 700; text-align: center; }
.mark.ok { color: var(--ok); }
.mark.bad { color: var(--bad); }
.item .note { grid-column: 1 / -1; font-size: 0.85rem; color: var(--muted); margin-top: -4px; }

/* Fill */
.blank {
  font-family: var(--mono); font-size: 0.88rem; padding: 0 4px; margin: 0 1px; border: 1px solid var(--accent);
  border-radius: 4px; background: var(--surface); line-height: 1.3;
}
.blank.ok { border-color: var(--ok); background: var(--ok-soft); }
.blank.bad { border-color: var(--bad); background: var(--bad-soft); }

/* Click */
.clickable pre { line-height: 1.9; }
.tok {
  font: inherit; color: inherit; background: transparent; border: 1px dashed transparent; border-bottom-color: var(--accent);
  border-radius: 4px; padding: 0 2px; margin: 0 -1px; cursor: pointer;
}
.tok:hover { background: var(--accent-soft); }
.answer-label { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 4px; }
.answer-label .label { margin: 0 auto 0 0; }
.tok.found { background: var(--ok-soft); border: 1px solid var(--ok); }
.tok.picked { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.tok.picked span { color: inherit !important; }
.tok.target { outline: 2px solid var(--gold-strong); }
.step-list { margin: 0; padding-left: 0; list-style: none; display: grid; gap: 6px; }
.step-list li { padding: 6px 10px; border-radius: 8px; color: var(--muted); }
.step-list li.current { background: var(--surface-2); color: var(--ink); font-weight: 700; }
.step-list li.done { color: var(--ok); }
.step-list li.done::before { content: "✓ "; }
.step-list p { display: inline; margin: 0; }

/* Choose */
.questions { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.question .prompt { margin-bottom: 6px; }
.question .prompt pre { margin-bottom: 8px; }
.options { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; }
.option {
  display: flex; gap: 10px; align-items: center; text-align: left; padding: 8px 12px; border-radius: 8px; min-width: 0;
  border: 1px solid var(--line); background: var(--surface); cursor: pointer;
}
.option > span:last-child { min-width: 0; overflow-wrap: anywhere; }
.option code { white-space: normal; -webkit-box-decoration-break: clone; box-decoration-break: clone; }   /* long code in a choice wraps instead of widening the page */
.option:hover { border-color: var(--accent); }
.option[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); font-weight: 700; }
.option.ok { border-color: var(--ok); background: var(--ok-soft); }
.option.bad { border-color: var(--bad); background: var(--bad-soft); }
.option.answer { outline: 2px solid var(--gold-strong); }
.option .radio { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--muted); flex: none; }
.option[aria-pressed="true"] .radio { border-color: var(--accent); background: radial-gradient(var(--accent) 45%, transparent 50%); }

/* Level list drawer */
.drawer-panel {
  position: fixed; inset: 0 0 0 auto; width: min(420px, 92vw); z-index: 40; overflow-y: auto;
  background: var(--surface); border-left: 1px solid var(--line); box-shadow: var(--shadow); padding: 18px;
}
.scrim { position: fixed; inset: 0; z-index: 30; background: rgba(20, 10, 30, 0.35); }
.drawer-panel h2 { margin: 0; font-size: 1.2rem; }
.drawer-panel .panel-title { margin-bottom: 12px; }
.chapter-row { padding: 10px 0; border-top: 1px solid var(--line); }
.search { width: 100%; margin-bottom: 12px; padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); }
.search:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 2px var(--accent-soft); }
.results { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.result { display: grid; gap: 2px; padding: 8px 10px; border-radius: 8px; color: var(--ink); text-decoration: none; }
.result:hover, .result:focus-visible { background: var(--surface-2); }
.result-title { font-weight: 700; }
.result .check { color: var(--accent); }
.result .where { font-size: 0.82rem; color: var(--muted); }
.result .snippet { font-size: 0.85rem; color: var(--muted); overflow-wrap: anywhere; }
mark { background: var(--gold-soft); color: var(--ink); border-radius: 2px; padding: 0 1px; }
.chapter-row h3 { margin: 0 0 6px; font-size: 1rem; display: flex; justify-content: space-between; gap: 8px; }
.chapter-row h3 span { color: var(--muted); font-weight: 400; font-size: 0.85rem; white-space: nowrap; }

/* Start page */
.start { max-width: 720px; margin: 20px auto; display: grid; gap: 18px; }
.start .hero { display: flex; gap: 16px; align-items: center; }
.start .hero svg { width: 72px; height: 72px; flex: none; }
.start h1 { margin: 0; font-size: 2rem; color: var(--accent); }
.start .tagline { margin: 2px 0 0; color: var(--muted); font-size: 1.05rem; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: grid; gap: 4px; align-content: start; }
.field label { font-weight: 700; font-size: 0.9rem; }
.field input {
  padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface);
}
.field input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 2px var(--accent-soft); }
.field .help { font-size: 0.82rem; color: var(--muted); }
.field input[aria-invalid="true"] { border-color: var(--bad); }
.field.saved input { border-color: var(--ok); }
.field .saved-mark { margin-left: 6px; font-weight: 700; font-size: 0.82rem; color: var(--ok); }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.start-actions { justify-content: center; }

/* Toolbox */
.toolbox-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 12px; margin-bottom: 16px; }
.toolbox-head h1 { margin: 0; font-size: 1.8rem; }
.toolbox-head p { margin: 4px 0 0; color: var(--muted); max-width: 70ch; }
.drawers { display: grid; gap: 18px; }
.drawer-card { padding: 0; }
.drawer-heading { margin: 0; font: inherit; }
.drawer-toggle { display: flex; gap: 12px; align-items: flex-start; width: 100%; padding: 16px 20px; border: none; border-radius: 12px;
  background: none; text-align: left; cursor: pointer; }
.drawer-toggle:hover { background: var(--surface-2); }
.drawer-card.open .drawer-toggle { border-bottom: 1px solid var(--line); border-radius: 12px 12px 0 0; }
.drawer-card:not(.open) .drawer-body { display: none; }
.chevron { flex: none; width: 10px; height: 10px; margin-top: 8px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(-45deg); transition: transform 0.15s; }
.drawer-card.open .chevron { transform: rotate(45deg); margin-top: 4px; }
.drawer-head { flex: 1; min-width: 0; display: flex; gap: 6px 20px; align-items: flex-start; }
.drawer-main { flex: 1; min-width: 0; display: grid; gap: 4px; }
.drawer-side { flex: none; width: 170px; display: grid; gap: 6px; padding-top: 3px; }
.drawer-title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.drawer-name { font-size: 1.15rem; font-weight: 700; }
.drawer-meta { font-size: 0.85rem; color: var(--muted); text-align: right; }
.drawer-intro { color: var(--muted); font-size: 0.95rem; }
.mini-bar { display: block; height: 5px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.mini-bar span { display: block; height: 100%; background: var(--gold-strong); }
.badge { font-size: 0.78rem; font-weight: 700; color: var(--shown); background: var(--gold-soft); border: 1px solid var(--gold); border-radius: 99px; padding: 1px 8px; }
.drawer-card.full { border-color: var(--gold); }
.drawer-card .tools, .drawer-card .glossary { margin: 14px 20px 18px; }
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: 12px; margin-top: 12px; }
.tool { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; display: grid; gap: 6px; align-content: start; min-width: 0; }
.tool .prose { min-width: 0; }
.tool .prose p { margin: 0; font-size: 0.92rem; }
.tool .prose pre { margin: 0 0 6px; }
.tool-name { font-weight: 700; font-size: 0.92rem; color: var(--ink); text-decoration: none; }
.tool-name:hover { text-decoration: underline; }
.tool.done { border-color: var(--gold); box-shadow: inset 4px 0 0 var(--gold-strong); padding-left: 16px; }
.tool.done .check { color: var(--shown); }
.tool.locked { border-style: dashed; color: var(--muted); font-size: 0.85rem; padding: 8px 12px; }
.tool.locked .tool-name { color: var(--muted); font-weight: 400; }
.glossary { margin-top: 12px; font-size: 0.92rem; }
.glossary dt { font-weight: 700; display: inline; }
.glossary dd { margin: 0 0 4px; display: inline; color: var(--muted); }

/* Dialog */
dialog { border: 1px solid var(--line); border-radius: 14px; padding: 0; background: var(--surface); color: var(--ink); max-width: min(560px, 94vw); box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(20, 10, 30, 0.45); }
.dialog-body { padding: 20px; display: grid; gap: 14px; }
.dialog-body h2 { margin: 0; }
.panel-title { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.close-x { display: grid; place-items: center; width: 34px; height: 34px; margin: -6px -6px -6px 0; padding: 0;
  border: none; border-radius: 8px; background: transparent; color: var(--muted); cursor: pointer; }
.close-x:hover { background: var(--surface-2); color: var(--ink); }
.close-x svg { width: 20px; height: 20px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.stat { background: var(--surface-2); border-radius: 8px; padding: 8px 10px; }
.stat b { display: block; font-size: 1.3rem; font-variant-numeric: tabular-nums; }
.stat span { font-size: 0.8rem; color: var(--muted); }
.note-small { font-size: 0.85rem; color: var(--muted); margin: 0; }

@media (max-width: 900px) {
  .play { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .drawer-head { flex-direction: column; }
  .drawer-side { width: 100%; max-width: 260px; }
  .drawer-meta { text-align: left; }
  .top-inner, main { padding-inline: 16px; }
  .fields { grid-template-columns: 1fr; }
  .item { grid-template-columns: minmax(0, 1fr) 22px; }
  .item code { grid-column: 1 / -1; }
  .controls .keys { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .brand .word { display: none; }
}

@media print {
  header.top, .toolbox-head .row, .tool.locked { display: none; }
  body { background: #fff; color: #000; }
  .card { border: none; padding: 0; }
  .drawer-card { margin-bottom: 18px; }
  .drawer-heading { break-after: avoid; }
  .tool { break-inside: avoid; }
  pre { white-space: pre-wrap; overflow: visible; }
  .drawer-card:not(.open) .drawer-body { display: block; }   /* every chapter, open or not */
  .chevron, .mini-bar { display: none; }
  .drawer-toggle { padding: 0; }
  .drawer-card .tools, .drawer-card .glossary { margin: 10px 0; }
}