/* Shared look of the topic click-guides in the App Guides (en + de):
   ai_grading_rules_guide, grading_scale_guide, webuntis_import_guide.
   Same tokens, header, hero, numbered steps and mock-ups as the page click-guides
   (which keep their styles inline), plus a callout box and the grade-key calculator
   (grade_key.js). Linked as ../guide_topics.css from either language folder. */
@import url('fonts/fonts.css');

:root {
  --bg: #f5f6fb; --panel: #ffffff; --panel-alt: #eef0fa;
  --ink: #1b2036; --ink-dim: #5c6486; --ink-faint: #8b92b3;
  --line: rgba(58, 66, 110, 0.14);
  --violet: #7c3aed; --violet-soft: rgba(124, 58, 237, 0.12);
  --cyan: #0891b2; --cyan-soft: rgba(8, 145, 178, 0.12);
  --green: #059669; --green-soft: rgba(5, 150, 105, 0.12);
  --amber: #b45309; --amber-soft: rgba(180, 83, 9, 0.10);
  --red: #dc2626; --red-soft: rgba(220, 38, 38, 0.10);
  --shadow: 0 1px 2px rgba(30, 34, 60, 0.04), 0 8px 24px rgba(30, 34, 60, 0.06);
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f172a; --panel: #161f38; --panel-alt: #1d2846;
    --ink: #e7eaf6; --ink-dim: #a6adcf; --ink-faint: #6d7699;
    --line: rgba(148, 163, 214, 0.16);
    --violet: #a78bfa; --violet-soft: rgba(167, 139, 250, 0.14);
    --cyan: #22d3ee; --cyan-soft: rgba(34, 211, 238, 0.12);
    --green: #34d399; --green-soft: rgba(52, 211, 153, 0.14);
    --amber: #fbbf24; --amber-soft: rgba(251, 191, 36, 0.12);
    --red: #f87171; --red-soft: rgba(248, 113, 113, 0.12);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.35);
  }
}
:root[data-theme="dark"] {
  --bg: #0f172a; --panel: #161f38; --panel-alt: #1d2846;
  --ink: #e7eaf6; --ink-dim: #a6adcf; --ink-faint: #6d7699;
  --line: rgba(148, 163, 214, 0.16);
  --violet: #a78bfa; --violet-soft: rgba(167, 139, 250, 0.14);
  --cyan: #22d3ee; --cyan-soft: rgba(34, 211, 238, 0.12);
  --green: #34d399; --green-soft: rgba(52, 211, 153, 0.14);
  --amber: #fbbf24; --amber-soft: rgba(251, 191, 36, 0.12);
  --red: #f87171; --red-soft: rgba(248, 113, 113, 0.12);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: 'Inter', system-ui, sans-serif; line-height: 1.55; }
h1, h2, h3, h4 { font-family: 'Manrope', system-ui, sans-serif; text-wrap: balance; margin: 0; }
a { color: var(--violet); }
.wrap { max-width: 920px; margin: 0 auto; padding: 56px 24px 96px; }
@media (max-width: 560px) { .wrap { padding: 32px 16px 64px; } }

/* header + hero */
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-bottom: 22px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.site-header .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.site-header .brand-logo-chip { background: #ffffff; border-radius: 10px; padding: 6px 10px; display: flex; align-items: center; box-shadow: var(--shadow); border: 1px solid var(--line); }
.site-header .brand-logo-chip img { height: 20px; display: block; }
.site-header .brand-label { font-family: 'JetBrains Mono', monospace; font-size: 11.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); }
.site-header .links { display: flex; align-items: center; gap: 8px; }
.site-header .back-link { display: inline-flex; align-items: center; gap: 6px; font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--ink-dim); text-decoration: none; border: 1px solid var(--line); padding: 7px 14px; border-radius: 999px; background: var(--panel); box-shadow: var(--shadow); }
.site-header .back-link:hover { color: var(--violet); border-color: var(--violet); }

.hero { display: flex; flex-direction: column; gap: 14px; padding-bottom: 40px; border-bottom: 1px solid var(--line); margin-bottom: 48px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-family: 'JetBrains Mono', monospace; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--violet); width: fit-content; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: linear-gradient(135deg, var(--violet), var(--cyan)); }
.hero h1 { font-size: clamp(30px, 4.4vw, 42px); font-weight: 800; letter-spacing: -0.01em; }
.hero p { max-width: 62ch; color: var(--ink-dim); font-size: 16.5px; margin: 0; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.meta-pill { font-size: 13px; color: var(--ink-dim); background: var(--panel); border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; box-shadow: var(--shadow); }
.meta-pill b { color: var(--ink); font-weight: 600; }

.part-label { display: flex; align-items: center; gap: 12px; margin: 0 0 28px; }
.part-label .tag { font-family: 'JetBrains Mono', monospace; font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--cyan); background: var(--cyan-soft); padding: 4px 10px; border-radius: 6px; }
.part-label h2 { font-size: 22px; font-weight: 800; }
.part-label .rule { flex: 1; height: 1px; background: var(--line); }

/* numbered steps */
.steps { display: flex; flex-direction: column; gap: 0; margin-bottom: 64px; }
.step { position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 24px; padding: 28px 0; }
.step:not(:last-child) { border-bottom: 1px dashed var(--line); }
@media (max-width: 560px) { .step { grid-template-columns: 44px 1fr; gap: 14px; } }
.step-num-col { display: flex; flex-direction: column; align-items: center; }
.step-num { width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-family: 'Manrope', sans-serif; font-weight: 800; font-size: 16px; color: #fff; background: linear-gradient(150deg, var(--violet), var(--cyan)); box-shadow: var(--shadow); flex-shrink: 0; }
.step-thread { flex: 1; width: 2px; background: var(--line); margin-top: 8px; }
.step:last-child .step-thread { display: none; }
.step-body { display: grid; grid-template-columns: minmax(220px, 1fr) minmax(240px, 320px); gap: 28px; align-items: center; }
@media (max-width: 720px) { .step-body { grid-template-columns: 1fr; } }
.step-text h3 { font-size: 18.5px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.005em; }
.step-text p { margin: 0 0 8px; color: var(--ink-dim); font-size: 14.8px; }
.step-text p:last-child { margin-bottom: 0; }
.step-text .click-hint { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--violet); background: var(--violet-soft); padding: 5px 10px; border-radius: 7px; }

/* mock-ups */
.mock { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; position: relative; overflow: hidden; }
.mock-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); font-family: 'JetBrains Mono', monospace; }
.mock-input { background: var(--panel-alt); border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; font-size: 13px; color: var(--ink); margin-top: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mock-input.mono { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--ink-dim); }
.mock-select { background: var(--panel-alt); border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; font-size: 13px; color: var(--ink-dim); margin-top: 6px; display: flex; justify-content: space-between; gap: 8px; }
.mock-select::after { content: "▾"; color: var(--ink-faint); }
.mock-btn { display: inline-flex; align-items: center; gap: 6px; background: linear-gradient(135deg, var(--violet), var(--cyan)); color: #fff; font-weight: 600; font-size: 13px; padding: 8px 14px; border-radius: 8px; width: fit-content; position: relative; }
.mock-btn.ghost { background: var(--panel-alt); color: var(--ink); border: 1px solid var(--line); }
.btn-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.btn-row .mock-btn { font-size: 11.5px; padding: 6px 10px; }
.target { position: absolute; width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--cyan); pointer-events: none; }
.target::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; border: 2px solid var(--cyan); opacity: 0.5; animation: pulse 2.2s ease-out infinite; }
@keyframes pulse { 0% { transform: scale(0.7); opacity: 0.55; } 100% { transform: scale(1.7); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .target::after { animation: none; opacity: 0.25; } }

.side-nav { display: flex; flex-direction: column; gap: 4px; }
.side-item { font-size: 12.5px; padding: 7px 10px; border-radius: 8px; color: var(--ink-dim); position: relative; }
.side-item.on { background: var(--violet-soft); color: var(--violet); font-weight: 600; }
.check-rows { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.check-row { display: flex; align-items: center; gap: 8px; font-size: 12.5px; background: var(--panel-alt); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; }
.check-row .box { width: 16px; height: 16px; border-radius: 5px; background: var(--green-soft); color: var(--green); border: 1.5px solid var(--green); font-size: 10px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.check-row.open .box { background: transparent; border-color: var(--ink-faint); color: transparent; }
.paper { background: #fffdf7; color: #2a2a2a; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; font-family: 'Caveat', 'Segoe Print', cursive; font-size: 13px; line-height: 1.5; }
.paper .head { display: flex; justify-content: space-between; font-family: 'Inter', sans-serif; font-size: 11px; color: #555; margin-bottom: 6px; }
.paper .blackout { background: #1b2036; color: #1b2036; border-radius: 3px; padding: 0 22px; }
.file-list { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.file-row { display: flex; align-items: center; gap: 8px; background: var(--panel-alt); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; font-size: 12px; }
.file-row .badge { margin-left: auto; color: var(--green); font-size: 11px; font-weight: 700; }
.editor-split { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.editor-pane { background: var(--panel-alt); border: 1px solid var(--line); border-radius: 8px; padding: 8px; font-size: 11px; color: var(--ink-dim); }
.editor-pane .ep-label { font-family: 'JetBrains Mono', monospace; font-size: 9.5px; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 4px; display: block; }
.strike { text-decoration: line-through; color: var(--amber); }
.grade-pill { display: inline-flex; align-items: center; gap: 6px; background: var(--cyan-soft); color: var(--cyan); font-weight: 700; padding: 4px 10px; border-radius: 999px; font-size: 12.5px; margin-top: 8px; }
.ai-tag { display: inline-flex; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--violet); background: var(--violet-soft); padding: 2px 7px; border-radius: 999px; }
.bubble { background: var(--panel-alt); border: 1px solid var(--line); border-radius: 12px 12px 12px 4px; padding: 10px 12px; font-size: 13px; color: var(--ink); }
.scale-rows { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }
.scale-row { display: flex; justify-content: space-between; gap: 8px; font-size: 12.5px; padding: 6px 10px; border-radius: 6px; background: var(--panel-alt); }
.scale-row .g { font-weight: 700; }
.scale-row.a { border-left: 3px solid #10b981; }
.scale-row.b { border-left: 3px solid var(--cyan); }
.scale-row.c { border-left: 3px solid #f59e0b; }
.scale-row.d { border-left: 3px solid #ef4444; }
.calc-line { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 13px; padding: 8px 10px; background: var(--panel-alt); border-radius: 8px; margin-top: 6px; }
.calc-line b { font-family: 'Manrope', sans-serif; font-size: 15px; color: var(--violet); }
.map-row { display: grid; grid-template-columns: 1fr auto 1fr; gap: 6px; align-items: center; font-size: 11.5px; margin-top: 6px; }
.map-row .from { background: var(--panel-alt); border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; color: var(--ink-dim); }
.map-row .to { background: var(--panel); border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; display: flex; justify-content: space-between; }
.map-row .to::after { content: "▾"; color: var(--ink-faint); }
.map-row .arrow { color: var(--ink-faint); }
.cal-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; margin-top: 8px; }
.cal-day { background: var(--panel-alt); border: 1px solid var(--line); border-radius: 7px; padding: 5px; min-height: 46px; }
.cal-day .dhead { font-size: 9px; color: var(--ink-faint); text-transform: uppercase; }
.cal-lesson { background: var(--cyan-soft); color: var(--cyan); font-size: 8.5px; border-radius: 4px; padding: 2px 3px; margin-top: 3px; font-weight: 600; }
.cal-lesson.off { background: var(--panel); color: var(--ink-faint); text-decoration: line-through; }
.status-line { font-size: 11.5px; color: var(--green); background: var(--green-soft); border-radius: 7px; padding: 6px 9px; margin-top: 8px; }
.status-line.warn { color: var(--amber); background: var(--amber-soft); }

/* callout + check list + ampel cards */
/* Sign-up box under a topic guide's tool (the grading-scale calculator). */
.cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px 22px; margin: 0 0 56px; }
.cta p { margin: 0; color: var(--ink-dim); font-size: 15px; max-width: 56ch; }
.cta p b { color: var(--ink); }
.cta-btn { display: inline-flex; align-items: center; background: linear-gradient(135deg, var(--violet), var(--cyan)); color: #fff; font-weight: 700; font-size: 14.5px; padding: 11px 20px; border-radius: 10px; text-decoration: none; white-space: nowrap; }
.cta-btn:hover, .cta-btn:focus-visible { filter: brightness(1.08); }

.callout { display: grid; grid-template-columns: 30px 1fr; gap: 12px; align-items: start; border-radius: var(--radius); padding: 16px 18px; margin: 0 0 40px; background: var(--violet-soft); }
.callout .ico { font-size: 20px; line-height: 1.3; }
.callout p { margin: 0; font-size: 15px; }
.callout p + p { margin-top: 8px; }
.callout.warn { background: var(--amber-soft); }
.next { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 8px 0 56px; }
.next-card { display: block; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px; text-decoration: none; color: inherit; }
a.next-card:hover { border-color: var(--violet); }
.next-card h4 { font-size: 15px; margin: 0 0 6px; color: var(--violet); }
.next-card p { margin: 0; font-size: 13.5px; color: var(--ink-dim); }
.next-card ul { margin: 6px 0 0; padding-left: 18px; font-size: 13.5px; color: var(--ink-dim); }
.next-card li { margin: 3px 0; }
.next-card.ok h4 { color: var(--green); }
.next-card.care h4 { color: var(--amber); }
.next-card.no h4 { color: var(--red); }
.sources { font-size: 13px; color: var(--ink-dim); padding-left: 18px; margin: 0 0 8px; }
.sources li { margin: 4px 0; }

/* grade-key calculator (grade_key.js) */
.gk { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; margin: 0 0 64px; }
.gk-controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 14px; }
.gk-controls label { display: flex; flex-direction: column; gap: 4px; font-size: 11px; font-family: 'JetBrains Mono', monospace; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-faint); }
.gk input, .gk select { font-family: 'Inter', system-ui, sans-serif; font-size: 15px; color: var(--ink); background: var(--panel-alt); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; text-transform: none; letter-spacing: 0; }
.gk input:focus, .gk select:focus { outline: 2px solid var(--violet); outline-offset: 1px; }
.gk table { width: 100%; border-collapse: collapse; font-size: 15px; }
.gk th, .gk td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; }
.gk th { font-size: 12.5px; color: var(--ink-dim); font-family: 'Manrope', sans-serif; }
.gk tr:last-child td { border-bottom: 0; }
.gk .gk-grade { font-weight: 700; font-family: 'Manrope', sans-serif; }
.gk .gk-pct { width: 86px; }
.gk .gk-points { font-variant-numeric: tabular-nums; font-weight: 600; }
.gk-note { font-size: 13px; color: var(--ink-dim); margin: 10px 0 0; }

footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--ink-faint); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
footer a { color: var(--ink-dim); text-decoration: none; font-weight: 600; }