/* ================================================================
   U30 TRAINER — STYLESHEET
   Struktur:
     1. Design Tokens (Variablen & Farbpaletten)
     2. Reset & Basis-Typografie
     3. Layout-Grundgerüst
     4. Header, Fach-Leiste & Navigation
     5. Buttons & Chips
     6. Panels & Statistik-Kacheln
     7. Übersicht: Domains, Sections, Editions
     8. Quiz & Prüfungssimulation
     9. Manage-Formulare
     10. Modal
     11. Footer & Utilities
     12. Responsive Breakpoints (gesammelt am Ende)
   ================================================================ */

/* ----------------------------------------------------------------
   1. DESIGN TOKENS
   ---------------------------------------------------------------- */
:root{
  --radius: 3px;
  --mono: "SF Mono", "Cascadia Mono", "Consolas", "Roboto Mono", ui-monospace, monospace;
  --sans: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Nutzersteuerbarer Zoom-Faktor (theme/fontScale.js) - Default 1, per
     A-/Reset/A+-Buttons veraenderbar, in localStorage persistiert. */
  --font-scale: 1;

  /* Mathematisch korrekte Skalierung - von 360px - 1440px */
  --fs-1: calc(var(--font-scale) * clamp(0.5rem,   0.025vw + 0.41rem,   0.75rem));  /* Sehr klein — Fußzeile */
  --fs-2: calc(var(--font-scale) * clamp(0.875rem, 0.012vw + 0.8318rem,  1.0rem));  /* Klein — Metadaten */
  --fs-3: calc(var(--font-scale) * clamp(1.0rem,   0.025vw + 0.91rem,   1.25rem));  /* Standard — Fließtext */
  --fs-4: calc(var(--font-scale) * clamp(1.25rem,  0.035vw + 1.124rem,  1.625rem)); /* Mittel — H3 */
  --fs-5: calc(var(--font-scale) * clamp(1.5rem,   0.07vw  + 1.248rem,  2.25rem));  /* Groß — H2 */
  --fs-6: calc(var(--font-scale) * clamp(2.0rem,   0.14vw  + 1.496rem,  3.5rem));   /* Sehr groß — H1 */
  --fs-7: calc(var(--font-scale) * clamp(2.5rem,   0.28vw  + 1.492rem,  5.5rem));   /* Hero */

  /* Identity-Tokens: Default = Palette "Graphite Cobalt" (Light).
     Jede html[data-palette] Regel unten überschreibt NUR diese Identity-Tokens. */
  --bg: #F4F6F8; --bg-panel: #FFFFFF; --bg-panel-2: #EDF1F5;
  --ink: #1C1E24; --ink-soft: #3A3F4B; --muted: #6E7480;
  --line: #DDE1E6; --line-strong: #C3C9D1;
  --blueprint: #343A40; --heading-accent: #1C1E24;
  --accent: #2F6FDB;
  --header-bg: #1C1E24; --header-text: #F4F6F8; --header-text-dim: #9AA0AC; --header-active-text: #1C1E24;
  --header-border: rgba(255,255,255,0.14);
  --featured-bg-top: #F2F6FF;

  /* Abgeleitete Tokens: einmal definiert, passen sich automatisch an jede
     Palette an (color-mix referenziert die Identity-Tokens oben live). */
  --blueprint-dark: color-mix(in srgb, var(--blueprint) 78%, black);
  --accent-soft: color-mix(in srgb, var(--accent) 18%, var(--bg-panel));
  --accent-hover: color-mix(in srgb, var(--accent) 82%, black);
  --accent-deep-text: color-mix(in srgb, var(--accent) 55%, var(--ink));
  --accent-ring: 0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent);
  --neutral-bg: color-mix(in srgb, var(--accent) 12%, var(--bg-panel));
  --led-off: var(--line-strong);
  --selected-bg: var(--bg-panel-2);
  --tag-edited-bg: var(--bg-panel-2);
  --backdrop: color-mix(in srgb, var(--ink) 55%, transparent);
  --header-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 6px 14px color-mix(in srgb, var(--header-bg) 65%, transparent);

  /* Semantische Feedback-Farben: bewusst NICHT pro Palette variiert, damit
     "richtig/falsch" unabhängig vom gewählten Theme gleich lesbar bleibt.
     Dark-Mode-Variante wird unten in html[data-theme="dark"] überschrieben. */
  --success: #1F8F58; --success-soft: #DCF1E5; --success-text: #155C3A;
  --danger: #C8463B; --danger-soft: #FBE1DE; --danger-text: #8A2E26;
}

/* Dark Mode: hellere/kräftigere Feedback-Farben für Kontrast auf dunklem Grund.
   Gilt für ALLE Paletten, unabhängig von data-palette. */
html[data-theme="dark"]{
  --success: #3FBE82; --success-soft: #163828; --success-text: #8FE6B8;
  --danger: #E2685C; --danger-soft: #3A1C1A; --danger-text: #F0A199;
}

/* ===== Palette: NAVY (Executive Navy) ===== */
html[data-theme="light"][data-palette="navy"]{
  --bg: #EFF3F8; --bg-panel: #FFFFFF; --bg-panel-2: #F5F8FC;
  --ink: #0B1F3A; --ink-soft: #2C3E5C; --muted: #6B7A93;
  --line: #D6DEE9; --line-strong: #B4C2D4;
  --blueprint: #1F3B5C; --heading-accent: #0B1F3A;
  --accent: #2F6FDB;
  --header-bg: #0B1F3A; --header-text: #EFF3F8; --header-text-dim: #A7B1BE; --header-active-text: #0B1F3A;
  --header-border: rgba(255,255,255,0.18);
  --featured-bg-top: #F3F7FF;
}
html[data-theme="dark"][data-palette="navy"]{
  --bg: #0A0F1A; --bg-panel: #111B2E; --bg-panel-2: #0D1626;
  --ink: #E8EDF5; --ink-soft: #B7C2D6; --muted: #7C8AA3;
  --line: #1E2C42; --line-strong: #2C3F5C;
  --blueprint: #5B8DEF; --heading-accent: #BFD3F2;
  --accent: #4E8CFF;
  --header-bg: #060B14; --header-text: #EFF3F8; --header-text-dim: #7C8AA3; --header-active-text: #060B14;
  --header-border: rgba(255,255,255,0.12);
  --featured-bg-top: #141F33;
}

/* ===== Palette: GRAPHITE (Graphite Cobalt) ===== */
html[data-theme="light"][data-palette="graphite"]{
  --bg: #F4F6F8; --bg-panel: #FFFFFF; --bg-panel-2: #EDF1F5;
  --ink: #1C1E24; --ink-soft: #3A3F4B; --muted: #6E7480;
  --line: #DDE1E6; --line-strong: #C3C9D1;
  --blueprint: #343A40; --heading-accent: #1C1E24;
  --accent: #2F6FDB;
  --header-bg: #1C1E24; --header-text: #F4F6F8; --header-text-dim: #9AA0AC; --header-active-text: #1C1E24;
  --header-border: rgba(255,255,255,0.14);
  --featured-bg-top: #F2F6FF;
}
html[data-theme="dark"][data-palette="graphite"]{
  --bg: #121212; --bg-panel: #1A1A1E; --bg-panel-2: #161619;
  --ink: #ECEDEF; --ink-soft: #BEC2C9; --muted: #83878F;
  --line: #2A2B30; --line-strong: #3A3C43;
  --blueprint: #6C9BFF; --heading-accent: #C7D6FF;
  --accent: #3B82F6;
  --header-bg: #0E0E10; --header-text: #ECEDEF; --header-text-dim: #83878F; --header-active-text: #0E0E10;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #161E2E;
}

/* ===== Palette: FOREST (Forest Ledger) ===== */
html[data-theme="light"][data-palette="forest"]{
  --bg: #F1F8F4; --bg-panel: #FFFFFF; --bg-panel-2: #E9F4EE;
  --ink: #16332A; --ink-soft: #33564A; --muted: #6C8A7E;
  --line: #D3E6DB; --line-strong: #B0CFBE;
  --blueprint: #2F6F63; --heading-accent: #173F35;
  --accent: #C97C3B;
  --header-bg: #173F35; --header-text: #F1F8F4; --header-text-dim: #A9C4B8; --header-active-text: #173F35;
  --header-border: rgba(255,255,255,0.16);
  --featured-bg-top: #FBF3EA;
}
html[data-theme="dark"][data-palette="forest"]{
  --bg: #0C1613; --bg-panel: #142520; --bg-panel-2: #10201B;
  --ink: #E5F2EC; --ink-soft: #B7D2C6; --muted: #7A9A8C;
  --line: #1F3A31; --line-strong: #2C5346;
  --blueprint: #4FAE94; --heading-accent: #A8E6CE;
  --accent: #E0995A;
  --header-bg: #081210; --header-text: #E5F2EC; --header-text-dim: #7A9A8C; --header-active-text: #081210;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #241A10;
}

/* ===== Palette: CHARCOAL-GOLD (Warm Charcoal Gold) ===== */
html[data-theme="light"][data-palette="charcoal-gold"]{
  --bg: #FBF6F0; --bg-panel: #FFFFFF; --bg-panel-2: #F5EDE3;
  --ink: #2A1F1D; --ink-soft: #4B3832; --muted: #8C7A6B;
  --line: #E6D9CC; --line-strong: #D2BFA9;
  --blueprint: #6B4E3A; --heading-accent: #3E2A24;
  --accent: #B87333;
  --header-bg: #2A1F1D; --header-text: #FBF6F0; --header-text-dim: #C9B8A9; --header-active-text: #2A1F1D;
  --header-border: rgba(255,255,255,0.16);
  --featured-bg-top: #FBF0E0;
}
html[data-theme="dark"][data-palette="charcoal-gold"]{
  --bg: #1C1917; --bg-panel: #262220; --bg-panel-2: #201C1A;
  --ink: #FAFAF9; --ink-soft: #D8CFC7; --muted: #A8A29E;
  --line: #3A332E; --line-strong: #4E443C;
  --blueprint: #D4A574; --heading-accent: #EBD3AE;
  --accent: #D4A574;
  --header-bg: #14110F; --header-text: #FAFAF9; --header-text-dim: #A8A29E; --header-active-text: #14110F;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #2A2016;
}

/* ===== Palette: LAVENDER (Slate Lavender) ===== */
html[data-theme="light"][data-palette="lavender"]{
  --bg: #F5F4FA; --bg-panel: #FFFFFF; --bg-panel-2: #EFEDF6;
  --ink: #2C2F3A; --ink-soft: #4A4F68; --muted: #7A7E93;
  --line: #DEDCEC; --line-strong: #C4C1DC;
  --blueprint: #4A4F68; --heading-accent: #2C2F3A;
  --accent: #7C63C9;
  --header-bg: #2C2F3A; --header-text: #F5F4FA; --header-text-dim: #ABA9C4; --header-active-text: #2C2F3A;
  --header-border: rgba(255,255,255,0.16);
  --featured-bg-top: #F5F2FC;
}
html[data-theme="dark"][data-palette="lavender"]{
  --bg: #17151F; --bg-panel: #211E2C; --bg-panel-2: #1B1826;
  --ink: #EDEBF5; --ink-soft: #C7C3DC; --muted: #8D89A6;
  --line: #312C42; --line-strong: #413B58;
  --blueprint: #9C8ADE; --heading-accent: #D6CCF2;
  --accent: #A78BFA;
  --header-bg: #100E17; --header-text: #EDEBF5; --header-text-dim: #8D89A6; --header-active-text: #100E17;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #241E33;
}

/* ===== Palette: CLOUD-BLUE (Clean Cloud Blue) ===== */
html[data-theme="light"][data-palette="cloud-blue"]{
  --bg: #F7F9FB; --bg-panel: #FFFFFF; --bg-panel-2: #EAF4FF;
  --ink: #133C55; --ink-soft: #2C5770; --muted: #6C8C9E;
  --line: #D3E6F0; --line-strong: #AFD2E3;
  --blueprint: #386FA4; --heading-accent: #133C55;
  --accent: #3E92C4;
  --header-bg: #133C55; --header-text: #F7F9FB; --header-text-dim: #9FC2D6; --header-active-text: #133C55;
  --header-border: rgba(255,255,255,0.18);
  --featured-bg-top: #EEF8FF;
}
html[data-theme="dark"][data-palette="cloud-blue"]{
  --bg: #0A1720; --bg-panel: #0F212E; --bg-panel-2: #0C1A25;
  --ink: #E4F1F8; --ink-soft: #B3D2E1; --muted: #719AAF;
  --line: #1B3242; --line-strong: #264458;
  --blueprint: #6BB6E8; --heading-accent: #BEE2F5;
  --accent: #4FB0E8;
  --header-bg: #071119; --header-text: #E4F1F8; --header-text-dim: #719AAF; --header-active-text: #071119;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #102434;
}

/* ===== Palette: STEEL-SAFFRON (Steel & Saffron) ===== */
html[data-theme="light"][data-palette="steel-saffron"]{
  --bg: #F4F5F6; --bg-panel: #FFFFFF; --bg-panel-2: #ECEEF0;
  --ink: #2A2F35; --ink-soft: #454C54; --muted: #767E88;
  --line: #DEE2E6; --line-strong: #C1C7CE;
  --blueprint: #5B6770; --heading-accent: #2A2F35;
  --accent: #D69A1F;
  --header-bg: #2A2F35; --header-text: #F4F5F6; --header-text-dim: #A9AFB6; --header-active-text: #2A2F35;
  --header-border: rgba(255,255,255,0.16);
  --featured-bg-top: #FFF7E4;
}
html[data-theme="dark"][data-palette="steel-saffron"]{
  --bg: #17191C; --bg-panel: #202327; --bg-panel-2: #1B1D21;
  --ink: #EEF0F2; --ink-soft: #C4C8CD; --muted: #8A9097;
  --line: #2C2F34; --line-strong: #3B3F45;
  --blueprint: #8A97A3; --heading-accent: #D6DBE0;
  --accent: #F2C14E;
  --header-bg: #101214; --header-text: #EEF0F2; --header-text-dim: #8A9097; --header-active-text: #101214;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #2A2312;
}

/* ===== Palette: TEAL-LIME (Coastal Teal Lime) ===== */
html[data-theme="light"][data-palette="teal-lime"]{
  --bg: #F1FAF7; --bg-panel: #FFFFFF; --bg-panel-2: #E7F5F1;
  --ink: #0B3C49; --ink-soft: #1F2933; --muted: #5E7A78;
  --line: #D2EAE3; --line-strong: #A9D4C8;
  --blueprint: #0F766E; --heading-accent: #0B3C49;
  --accent: #65A30D;
  --header-bg: #0B3C49; --header-text: #F1FAF7; --header-text-dim: #9FC8C0; --header-active-text: #0B3C49;
  --header-border: rgba(255,255,255,0.18);
  --featured-bg-top: #F3FBE8;
}
html[data-theme="dark"][data-palette="teal-lime"]{
  --bg: #081815; --bg-panel: #0E241F; --bg-panel-2: #0B1E19;
  --ink: #E3F6EF; --ink-soft: #AFD8C9; --muted: #679488;
  --line: #173A32; --line-strong: #215246;
  --blueprint: #3ECFB8; --heading-accent: #9FEBD3;
  --accent: #A3E635;
  --header-bg: #05100D; --header-text: #E3F6EF; --header-text-dim: #679488; --header-active-text: #05100D;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #1C2A0E;
}

/* ===== Palette: BURGUNDY (Burgundy Brief) ===== */
html[data-theme="light"][data-palette="burgundy"]{
  --bg: #F8F2F3; --bg-panel: #FFFFFF; --bg-panel-2: #F3E9EB;
  --ink: #3B1D2A; --ink-soft: #5C3444; --muted: #8C7078;
  --line: #EAD9DD; --line-strong: #D3B4BC;
  --blueprint: #6B2B3A; --heading-accent: #3B1D2A;
  --accent: #A44A3F;
  --header-bg: #3B1D2A; --header-text: #F8F2F3; --header-text-dim: #CBA9B2; --header-active-text: #3B1D2A;
  --header-border: rgba(255,255,255,0.16);
  --featured-bg-top: #FBF0EC;
}
html[data-theme="dark"][data-palette="burgundy"]{
  --bg: #180D12; --bg-panel: #231319; --bg-panel-2: #1C1015;
  --ink: #F3E6E9; --ink-soft: #D3B4BE; --muted: #977C85;
  --line: #33202A; --line-strong: #472B37;
  --blueprint: #C5A3AE; --heading-accent: #E9CBD3;
  --accent: #D97862;
  --header-bg: #100810; --header-text: #F3E6E9; --header-text-dim: #977C85; --header-active-text: #100810;
  --header-border: rgba(255,255,255,0.1);
  --featured-bg-top: #2B1712;
}

/* ===== Palette: ROSE-GOLD (Mono Rose Gold) ===== */
html[data-theme="light"][data-palette="rose-gold"]{
  --bg: #F6F5F5; --bg-panel: #FFFFFF; --bg-panel-2: #F0EEEE;
  --ink: #111214; --ink-soft: #3B3E45; --muted: #75787E;
  --line: #E1DFE0; --line-strong: #C8C5C7;
  --blueprint: #3B3E45; --heading-accent: #111214;
  --accent: #B76E79;
  --header-bg: #111214; --header-text: #F6F5F5; --header-text-dim: #A1A6B0; --header-active-text: #111214;
  --header-border: rgba(255,255,255,0.14);
  --featured-bg-top: #FBF1F2;
}
html[data-theme="dark"][data-palette="rose-gold"]{
  --bg: #0E0E10; --bg-panel: #18181B; --bg-panel-2: #141416;
  --ink: #F1F0F1; --ink-soft: #C6C4C6; --muted: #8A888B;
  --line: #232326; --line-strong: #302F33;
  --blueprint: #A1A6B0; --heading-accent: #DAD8DB;
  --accent: #D48A94;
  --header-bg: #08080A; --header-text: #F1F0F1; --header-text-dim: #8A888B; --header-active-text: #08080A;
  --header-border: rgba(255,255,255,0.08);
  --featured-bg-top: #241A1C;
}

/* ----------------------------------------------------------------
   2. RESET & BASIS-TYPOGRAFIE
   ---------------------------------------------------------------- */
*{ box-sizing: border-box; }

html,body{ margin:0; padding:0; }
body{
  background: var(--bg);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 28px 28px;
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-4);
  line-height: 1.5;
  min-height: 100vh;
}
a{ color: inherit; }

/* Basis-Schriftgrößen — Komponenten mit eigener Klasse überschreiben das gezielt */
h1{ font-size: var(--fs-4); }
h2{ font-size: var(--fs-3); }
h3{ font-size: var(--fs-2); }
button{ font-size: var(--fs-2); }

/* Sanfte Übergänge bei Theme-/Palette-Wechsel */
body, .panel, .stat-box, .qcard, .port, .opt, .btn, .chip, .modal, .rack-strip, .qrow, .panel-grid{
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

/* ----------------------------------------------------------------
   3. LAYOUT-GRUNDGERÜST
   ---------------------------------------------------------------- */
.wrap{
  max-width: 980px;
  margin: 0 auto;
  padding: 0 clamp(12px, 4vw, 20px) clamp(40px, 8vw, 80px);
  font-size: var(--fs-3);
}

/* ----------------------------------------------------------------
   4. HEADER, FACH-LEISTE & NAVIGATION
   ---------------------------------------------------------------- */
header.rack{
  margin: clamp(12px, 3vw, 22px) auto clamp(14px, 3vw, 26px);
  max-width: 980px;
  padding: 0 clamp(12px, 4vw, 20px);
  font-size: var(--fs-2);
}
/* Titel-Zeile und Navigations-Zeile sind fest übereinander gestapelt —
   dadurch ist die Header-Höhe/Zeilenzahl bei jedem Fach identisch,
   unabhängig davon, wie lang der Fachname im Untertitel ist. */
.rack-strip{
  background: var(--header-bg);
  color: var(--header-text);
  border-radius: var(--radius);
  padding: clamp(10px, 2vw, 14px) clamp(12px, 3vw, 18px);
  display:flex;
  flex-direction: column;
  gap: clamp(8px, 1.5vw, 12px);
  box-shadow: var(--header-shadow);
}
.rack-title{
  display:flex;
  align-items:baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.rack-title .jack{
  width:9px; height:9px; border-radius:50%;
  background: var(--accent);
  box-shadow: var(--accent-ring);
  display:inline-block;
  flex-shrink: 0;
}
.rack-title h1{
  font-family: var(--mono);
  font-size: clamp(14px, 2vw, 17px);
  letter-spacing: 0.5px;
  margin:0;
  font-weight: 600;
  color: var(--header-text);
}
.rack-title small{
  font-family: var(--mono);
  color: var(--header-text-dim);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.rack-controls{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: clamp(10px, 2vw, 16px);
  flex-wrap: wrap;
}
nav.tabs{
  display:flex;
  gap: 6px;
}
nav.tabs button{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: transparent;
  color: var(--header-text-dim);
  border: 1px solid var(--header-border);
  padding: 7px 12px;
  border-radius: var(--radius);
  cursor: pointer;
}
nav.tabs button.active{
  background: var(--accent);
  border-color: var(--accent);
  color: var(--header-active-text);
  font-weight: 700;
}

/* ---------- Fach-Leiste (Subject Bar) ---------- */
/* Zweischichtig wie Header (header.rack → .rack-strip): .subject-bar-outer
   positioniert (max-width 980px, zentriert, gleiches Padding wie header.rack/
   .wrap), .subject-bar ist die sichtbare Box darin — dadurch fluchtet ihr
   linker/rechter Rand exakt mit Header, Panels & Stat-Kacheln.
   Ein 5-Spalten-Grid über beide Zeilen hinweg: Zeile 1 (5 Fächer) füllt
   alle Spalten, Zeile 2 (4 Fächer) nutzt dieselbe Spaltenbreite statt sich
   auf 4 aufzublähen — dadurch sind wirklich alle Chips gleich groß, nicht
   nur innerhalb einer Zeile. .subject-row ist nur ein semantischer Wrapper
   (display:contents) und beeinflusst das Grid-Layout nicht. */
.subject-bar-outer{
  max-width: 980px;
  margin: 0 auto clamp(14px, 3vw, 26px);
  padding: 0 clamp(12px, 4vw, 20px);
}
.subject-bar{
  padding: clamp(8px, 1.5vw, 11px) clamp(10px, 2.5vw, 14px);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.subject-row{
  display: contents;
}
.subject-chip{
  text-align: center;
  font-family: var(--mono);
  font-size: var(--fs-3);
  letter-spacing: 0.3px;
  background: var(--bg-panel-2);
  color: var(--ink-soft);
  border: 1px solid var(--line-strong);
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
}
.subject-chip:hover{
  border-color: var(--blueprint);
}
.subject-chip.active{
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  font-weight: 700;
}

/* ---------- Lernen / Tipps & Tricks Umschalter ---------- */
.mode-switch{
  display:flex;
  align-items:center;
  flex-shrink: 0;
}

/* ---------- Theme-/Palette-Umschalter ---------- */
.theme-switch{
  display:flex;
  align-items:center;
  gap: 10px;
  flex-shrink: 0;
}
.seg{
  display:flex;
  border: 1px solid var(--header-border);
  border-radius: var(--radius);
  overflow:hidden;
}
.seg-btn{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: transparent;
  color: var(--header-text-dim);
  border: none;
  padding: 7px 10px;
  cursor: pointer;
}
.seg-btn.active{
  background: var(--accent);
  color: var(--header-active-text);
  font-weight: 700;
}
.settings-btn{
  font-family: var(--mono);
  font-size: 14px;
  background: transparent;
  color: var(--header-text-dim);
  border: 1px solid var(--header-border);
  border-radius: var(--radius);
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  line-height: 1;
}
.settings-btn:hover{ color: var(--header-text); border-color: var(--header-text-dim); }

/* .btn.ghost ist fuer helle Panels gedacht (dunkler Text) - im dunklen Header
   (.theme-switch: "Zur App"/"Passwort ändern"/"Logout"/Admin-Link) braucht es
   die Header-Textfarben, sonst ist der Text auf --header-bg kaum lesbar. */
.theme-switch .btn.ghost{
  color: var(--header-text-dim);
  border-color: var(--header-border);
}
.theme-switch .btn.ghost:hover{
  color: var(--header-text);
  border-color: var(--header-text-dim);
  background: rgba(255,255,255,0.06);
}

/* ---------- Boot-Screen (Laden/Fehler vor init(), siehe app.js boot()) ---------- */
.boot-screen{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  min-height: 50vh;
  padding: 40px 20px;
  text-align:center;
  color: var(--muted);
  font-family: var(--sans);
}
.boot-spinner{
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  animation: boot-spin 0.8s linear infinite;
}
@keyframes boot-spin{ to{ transform: rotate(360deg); } }
.boot-error p{ color: var(--danger-text); max-width: 420px; }

/* ---------- Save-Error-Toast (dezenter Hinweis bei fehlgeschlagenem Speichern) ---------- */
.save-error-toast{
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translate(-50%, 12px);
  z-index: 600;
  background: var(--danger-soft);
  color: var(--danger-text);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 13px;
  font-family: var(--sans);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--ink) 16%, transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.save-error-toast.visible{
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- Account (im Settings-Modal) ---------- */
.settings-account{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.settings-account-name{
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}
.settings-account-email{
  font-size: 12px;
  color: var(--muted);
}

/* ---------- Theme-Picker (im Settings-Modal) ---------- */
.theme-picker-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin: 4px 0 6px;
}
.theme-tile{
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel-2);
  cursor: pointer;
  font-family: var(--sans);
}
.theme-tile:hover{ border-color: var(--blueprint); }
.theme-tile.active{
  border-color: var(--accent);
  border-width: 2px;
  padding: 9px 11px;
  box-shadow: var(--accent-ring);
}
.theme-tile-swatches{ display:flex; height: 18px; border-radius: 3px; overflow:hidden; }
.theme-tile-swatches span{ flex:1; }
.theme-tile-name{ font-family: var(--mono); font-size: 12.5px; font-weight: 700; color: var(--ink); }
.theme-tile-desc{ font-size: 11px; color: var(--muted); line-height: 1.35; }

/* ----------------------------------------------------------------
   5. BUTTONS & CHIPS
   ---------------------------------------------------------------- */
.btn{
  font-family: var(--sans);
  font-weight:600;
  font-size: 13.5px;
  background: var(--blueprint);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover{ background: var(--blueprint-dark); }
.btn.accent{ background: var(--accent); }
.btn.accent:hover{ background: var(--accent-hover); }
.btn.ghost{
  background: transparent;
  color: var(--blueprint);
  border: 1px solid var(--line-strong);
}
.btn.ghost:hover{ background: var(--bg-panel-2); }
.btn.danger{ background: var(--danger); }
.btn:disabled{ opacity:0.45; cursor:not-allowed; }
.btn.small{ padding: 6px 10px; font-size: 12px; }

.skip-btn {
  opacity: 0.75;
  font-size: 12px;
  margin-left: 6px;
}
.skip-btn:hover:not(:disabled) {
  opacity: 1;
  color: var(--accent);
  border-color: var(--accent);
}
.skip-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.setup-row{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-bottom: 12px;
}
.chip{
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 6px 11px;
  cursor: pointer;
  background: var(--bg-panel);
}
.chip.active{ background: var(--blueprint); color:white; border-color: var(--blueprint); }

/* ----------------------------------------------------------------
   6. PANELS & STATISTIK-KACHELN
   ---------------------------------------------------------------- */
.panel{
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
}
.panel h2{
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--blueprint);
  margin: 0 0 14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.panel h2::after{
  content:"";
  flex:1;
  height:1px;
  background: var(--line);
}

.stat-strip{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: clamp(8px, 2vw, 12px);
  margin-bottom: 16px;
}
.stat-box{
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(10px, 2vw, 12px) clamp(12px, 2.5vw, 14px);
}
.stat-box .num{
  font-family: var(--mono);
  font-size: clamp(18px, 3.5vw, 24px);
  font-weight: 60;
  color: var(--heading-accent);
  display:block;
}
.stat-box .label{
  font-size: var(--fs-3);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.featured{
  font-size: var(--fs-2);
  border: 1px dashed var(--accent);
  background: linear-gradient(180deg, var(--featured-bg-top), var(--bg-panel));
}
.featured-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.featured-row .desc{
  color: var(--ink-soft);
  font-size: var(--fs-3);
  max-width: 600px;
}

/* ----------------------------------------------------------------
   7. ÜBERSICHT: DOMAINS, SECTIONS, EDITIONS
   ---------------------------------------------------------------- */
.domain-group{ margin-bottom: 18px; }
.domain-head{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 10px;
}
.domain-head .tag{
  font-family: var(--mono);
  font-size: 11px;
  background: var(--blueprint);
  color:white;
  padding: 3px 8px;
  border-radius: var(--radius);
  letter-spacing: 0.5px;
}
.domain-head .name{ font-weight:700; color: var(--ink); font-size: 14.5px;}
.domain-head .count{ color: var(--muted); font-size: 12px; font-family: var(--mono);}

.panel-grid{
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(clamp(120px, 20vw, 150px), 1fr));
  gap: 8px;
}
.port{
  font-size: var(--fs-2);
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 10px 10px 9px;
  cursor: pointer;
  text-align: left;
  transition: border-color .15s, transform .1s;
  position: relative;
}
.port:hover{ border-color: var(--blueprint); transform: translateY(-1px); }
.port .port-top{
  display:flex;
  justify-content: space-between;
  align-items:center;
  margin-bottom: 6px;
}
.port .port-num{
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}
.led{
  width:8px; height:8px; border-radius:50%;
  background: var(--led-off);
  flex-shrink:0;
}
.led.in-progress{ background: var(--accent); }
.led.done-good{ background: var(--success); }
.led.done-review{ background: var(--danger); }
.port .port-title{
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 7px;
  min-height: 32px;
  line-height: 1.25;
}
.port .port-bar{
  height: 4px;
  background: var(--line);
  border-radius: 2px;
  overflow:hidden;
}
.port .port-bar > div{
  height:100%;
  background: var(--blueprint);
}
.port .port-foot{
  display:flex;
  justify-content: space-between;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted);
}
.port .no-key{
  color: var(--accent);
}

/* ---------- Edition-Abschnitte ---------- */
.edition-block{ margin-bottom: 6px; }
.edition-head{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 10px;
  margin: 22px 0 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--blueprint);
}
.edition-title{
  font-family: var(--mono);
  font-size: 13.5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--heading-accent);
  margin: 0;
}
.empty-edition{
  text-align:center;
  color: var(--muted);
  font-size: 13.5px;
}
.empty-edition p{ margin: 4px 0 12px; }

/* ---------- Domain-Auswertung (Progress-Ansicht) ---------- */
.dom-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.dom-row:last-child { border-bottom: none; }
.dom-row-left {
  flex: 1;
  min-width: 0;
}
.dom-row-title {
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 3px;
}
.dom-row-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  font-family: var(--mono);
  color: var(--muted);
}
.dom-dot { color: var(--line-strong); }
.dom-row-meta .c-correct { color: var(--success-text); font-weight: 600; }
.dom-row-meta .c-wrong   { color: var(--danger-text);  font-weight: 600; }
.dom-row-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.dom-row-bar-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 160px;
}
.dom-row-bar {
  flex: 1;
  height: 6px;
  background: var(--line);
  border-radius: 3px;
  overflow: hidden;
}
.dom-row-bar > div {
  height: 100%;
  background: var(--blueprint);
  border-radius: 3px;
  transition: width .3s ease;
}
.dom-acc-badge {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  min-width: 38px;
  text-align: right;
}
.dom-acc-badge.acc-good { color: var(--success-text); }
.dom-acc-badge.acc-bad  { color: var(--danger-text); }
.dom-acc-badge.acc-open { color: var(--muted); }

/* ----------------------------------------------------------------
   8. QUIZ & PRÜFUNGSSIMULATION
   ---------------------------------------------------------------- */
.quiz-head{
  display:flex;
  justify-content: space-between;
  align-items:center;
  margin-bottom: 14px;
  gap: 12px;
  flex-wrap: wrap;
}
.quiz-head .where{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.quiz-progress{
  font-family: var(--mono);
  font-size: 13px;
  color: var(--heading-accent);
  font-weight: 700;
}

.qcard{
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(14px, 3vw, 22px) clamp(16px, 4vw, 24px);
  margin-bottom: 14px;
}
.qcard .qtext{
  font-size: clamp(14px, 2.5vw, 16.5px);
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 18px;
  line-height: 1.45;
  white-space: pre-line;
}
.opt{
  font-size: var(--fs-2);
  display:flex;
  align-items:flex-start;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 11px 13px;
  margin-bottom: 8px;
  cursor: pointer;
  background: var(--bg-panel);
}
.opt:hover{ border-color: var(--blueprint); background: var(--bg-panel-2); }
.opt.selected{ border-color: var(--blueprint); background: var(--selected-bg); }
.opt.correct{ border-color: var(--success); background: var(--success-soft); }
.opt.incorrect{ border-color: var(--danger); background: var(--danger-soft); }
.opt .letter{
  font-family: var(--mono);
  font-weight:700;
  color: var(--blueprint);
  flex-shrink:0;
  width: 18px;
}
.opt.correct .letter{ color: var(--success); }
.opt.incorrect .letter{ color: var(--danger); }
.opt .otext{ flex:1; }
.opt .icon {
  float: right;
  font-weight: bold;
}
.opt.correct .icon {
  color: var(--success);
}
.opt.incorrect .icon {
  color: var(--danger);
}

.feedback{
  margin-top: 14px;
  padding: 13px 15px;
  border-radius: var(--radius);
  font-size: 13.5px;
  line-height: 1.5;
  white-space: pre-line;
}
.feedback.good{ background: var(--success-soft); border:1px solid var(--success); color:var(--success-text); }
.feedback.bad{ background: var(--danger-soft); border:1px solid var(--danger); color:var(--danger-text); }
.feedback.neutral{ background: var(--neutral-bg); border:1px solid var(--accent); color:var(--accent-deep-text); }

.self-assess{
  margin-top: 10px;
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}

.quiz-actions{
  display:flex;
  justify-content: space-between;
  align-items:center;
  margin-top: 6px;
}
.quiz-actions .left, .quiz-actions .right{ display:flex; gap:8px; }

/* ---------- Prüfungssimulation ---------- */
.exam-panel .desc{
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
  line-height: 1.5;
}
.exam-domain-breakdown{
  display:flex;
  flex-wrap:wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.exam-domain-chip{
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 5px 10px;
  background: var(--bg-panel-2);
  color: var(--ink-soft);
}
.exam-domain-chip b{ color: var(--accent); }
.exam-domain-pct{ color: var(--muted); }
.setup-row-label{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  align-self: center;
  margin-right: 2px;
}

.exam-timer-badge{
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--bg-panel-2);
  color: var(--ink);
  letter-spacing: 0.5px;
}
.exam-timer-badge.warn{
  border-color: var(--accent);
  color: var(--accent-deep-text);
  background: var(--accent-soft);
}
.exam-timer-badge.critical{
  border-color: var(--danger);
  color: var(--danger-text);
  background: var(--danger-soft);
  animation: examPulse 1s ease-in-out infinite;
}
@keyframes examPulse{
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.quiz-exam-layout{
  display:flex;
  gap: 16px;
  align-items:flex-start;
}
.quiz-exam-layout > .qcard{ flex: 1 1 auto; min-width: 0; width: 100%; }
.quiz-main-col{
  flex: 1 1 auto;
  min-width: 0;
  display:flex;
  flex-direction: column;
}
.quiz-main-col .qcard{ min-width: 0; }
.quiz-main-col .quiz-actions{ margin-top: 6px; }

.exam-nav{
  flex: 0 0 220px;
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 14px;
}
.exam-nav-title{
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin-bottom: 10px;
}
.exam-nav-controls{
  display:flex;
  gap: 8px;
  margin-bottom: 14px;
}
.exam-nav-controls .btn{ flex: 1 1 0; }
.exam-nav-grid{
  display:grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}
.exam-nav-btn{
  position: relative;
  font-family: var(--mono);
  font-size: 11px;
  padding: 6px 0;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  background: var(--bg-panel-2);
  color: var(--ink-soft);
  cursor: pointer;
}
.exam-nav-btn.answered{ background: var(--accent); border-color: var(--accent); color: white; font-weight: 700; }
.exam-nav-check{
  position: absolute;
  top: -5px;
  right: -4px;
  background: var(--success);
  color: white;
  border-radius: 50%;
  width: 13px;
  height: 13px;
  font-size: 9px;
  line-height: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.exam-nav-btn.current{ outline: 2px solid var(--accent); outline-offset: 1px; }
.exam-nav-btn.correct{ background: var(--success-soft); border-color: var(--success); color: var(--success-text); }
.exam-nav-btn.wrong{ background: var(--danger-soft); border-color: var(--danger); color: var(--danger-text); }
.exam-nav-btn.unanswered{ opacity: 0.7; }
.exam-nav-summary{
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  text-align:center;
}

.result-exam-meta{
  font-size: 12.5px;
  color: var(--ink-soft);
  text-align:center;
  margin: 4px 0 10px;
  line-height: 1.5;
}
.result-exam-timeout{
  color: var(--danger-text);
  font-weight: 700;
  margin-bottom: 4px;
}
.result-exam-note{
  color: var(--muted);
  font-size: 11.5px;
  max-width: 440px;
  margin: 6px auto 0;
}

/* ---------- Result-Screen ---------- */
.result-screen {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}
.result-header {
  width: calc(100% + 32px);
  margin: -16px -16px 0 -16px;
  background: var(--header-bg);
  color: var(--header-text);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: clamp(10px,2vw,14px) clamp(12px,3vw,18px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  box-shadow: var(--header-shadow);
}
.result-header-sub {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--header-text-dim);
}
.result-ring-wrap { width: 160px; height: 160px; }
.result-ring { width: 100%; height: 100%; overflow: visible; }
.result-badge {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 10px 28px;
  border-radius: 999px;
}
.result-badge.pass { background: var(--success-soft); color: var(--success-text); }
.result-badge.fail { background: var(--danger-soft);  color: var(--danger-text); }
.result-threshold  { font-size: 0.82rem; color: var(--muted); }
.result-stats { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 4px 0; }
.rstat {
  display: flex; flex-direction: column; align-items: center;
  border: 2px solid var(--line-strong); border-radius: 12px;
  padding: 12px 18px; min-width: 72px;
}
.rstat.correct .rstat-num { color: var(--success-text); }
.rstat.wrong   .rstat-num { color: var(--danger-text); }
.rstat.skipped .rstat-num { color: var(--muted); }
.rstat.total   .rstat-num { color: var(--accent); }
.rstat-num { font-size: 1.6rem; font-weight: 700; line-height: 1; }
.rstat-lbl {
  font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted); margin-top: 4px;
}
.result-actions {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center; margin-top: 8px; padding-bottom: 8px;
}
.result-actions .btn { min-width: 160px; }

/* ----------------------------------------------------------------
   9. MANAGE-FORMULARE
   ---------------------------------------------------------------- */
#app label,
#modalContent label{
  display:block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
#modalContent input[type=text],
#modalContent input[type=password],
#modalContent input[type=email]{
  display:block;
  width: 100%;
  margin-top: 5px;
  font-family: var(--sans);
  font-size: 13.5px;
  padding: 9px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--ink);
}
#modalContent .pw-field{
  position: relative;
  display: block;
  margin-top: 5px;
}
#modalContent .pw-field input[type=password],
#modalContent .pw-field input[type=text]{
  margin-top: 0;
  padding-right: 40px;
}
#modalContent .pw-toggle{
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 15px;
  opacity: 0.55;
  border-radius: var(--radius);
}
#modalContent .pw-toggle:hover{ opacity: 0.85; background: var(--bg); }
#modalContent .pw-toggle.active{ opacity: 1; }
#app .panel input[type=text],
#app .panel select,
#app .panel textarea,
#app .qcard input[type=text],
#app .qcard select,
#app .qcard textarea{
  display:block;
  width: 100%;
  margin-top: 5px;
  font-family: var(--sans);
  font-size: 13.5px;
  padding: 9px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--ink);
}
.form-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 4px 16px;
  align-items: start;
}
#newChapDomainCustom, #newChapEditionCustom{
  grid-column: span 1;
  margin-top: -4px;
}
.opt-edit-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 4px 16px;
}
.opt-edit-grid label{ display:flex; align-items:flex-start; gap:8px; }
.opt-edit-grid .letter-label{
  font-family: var(--mono);
  font-weight:700;
  color: var(--blueprint);
  flex-shrink:0;
  padding-top: 9px; /* fluchtet mit der ersten Zeile bei mehrzeiligen Textareas */
}
.opt-edit-grid input, .opt-edit-grid textarea{ margin-top:0 !important; resize: vertical; }
.opt-edit-grid label button{ flex-shrink:0; }
.radio-row{ display:flex; gap: 14px; margin-top: 6px; }
.radio-inline{
  display:flex; align-items:center; gap:5px;
  font-weight:500; font-size: 13px; color: var(--ink);
  margin-bottom:0;
}
.radio-inline input{ width:auto; }

.qlist{ display:flex; flex-direction:column; gap: 8px; max-height: 480px; overflow-y:auto; }
.qrow{
  display:flex;
  justify-content: space-between;
  align-items:center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 9px 11px;
  background: var(--bg-panel-2);
}
.qrow-text{ font-size: 13px; line-height:1.4; }
.qrow-loc{ font-family: var(--mono); font-size: 10.5px; color: var(--muted); text-transform: uppercase; }
.tagbadge{
  font-family: var(--mono);
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 2px;
  text-transform: uppercase;
}
.tagbadge.edited{ background: var(--tag-edited-bg); color: var(--heading-accent); }
.tagbadge.danger{ background: var(--danger-soft); color: var(--danger-text); }
.tagbadge.sent{ background: var(--success-soft); color: var(--success-text); }

/* ----------------------------------------------------------------
   10. MODAL
   ---------------------------------------------------------------- */
.modal-backdrop{
  position: fixed; inset:0;
  background: var(--backdrop);
  display:none;
  align-items:center;
  justify-content:center;
  z-index: 50;
  padding: 20px;
}
.modal-backdrop.show{ display:flex; }
.modal{
  background: var(--bg-panel);
  border-radius: var(--radius);
  max-width: 520px;
  width:100%;
  padding: 22px 24px;
  border: 1px solid var(--line-strong);
}
/* Groessere Variante fuer Modals mit viel Editier-Inhalt (z.B. Admin-
   Fragen-Editor) - 75% der Viewport-Breite/-Hoehe statt der generischen
   520px, mit eigenem Scroll bei Ueberlauf statt die Seite zu sprengen. */
.modal.modal-large{
  max-width: 75vw;
  max-height: 75vh;
  overflow-y: auto;
}
.modal h3{
  font-family: var(--mono);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--blueprint);
  margin:0 0 12px;
}
.modal textarea, .modal input[type=text]{
  width: 100%;
  font-family: var(--mono);
  font-size: 13px;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  margin-bottom: 10px;
  resize: vertical;
}
.modal .row{ display:flex; justify-content:flex-end; gap:8px; margin-top: 6px;}
.modal p.hint{ font-size: 12.5px; color: var(--muted); margin: 0 0 10px;}

/* ----------------------------------------------------------------
   11. FOOTER & UTILITIES
   ---------------------------------------------------------------- */
footer.foot{
  margin-top: 30px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
footer.foot .actions{ display:flex; gap:8px; margin-top:10px; flex-wrap:wrap; }

.empty{
  text-align:center;
  color: var(--muted);
  padding: 30px 10px;
  font-size: 14px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 8px;
  background: var(--accent);
  color: white;
  padding: 10px 16px;
  z-index: 100;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
}
.skip-link:focus {
  top: 8px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ----------------------------------------------------------------
   12. RESPONSIVE BREAKPOINTS (gesammelt)
   ---------------------------------------------------------------- */

/* Large desktop (>= 1280px) */
@media (min-width: 1280px){
  .wrap, header.rack, .subject-bar-outer{ max-width: 1200px; }
  .stat-strip{ grid-template-columns: repeat(4, 1fr); }
}

/* Standard laptop / desktop (769px – 1279px) — default styles already cover this */

/* Tablet (481px – 768px) */
@media (max-width: 768px){
  .stat-strip{ grid-template-columns: repeat(2, 1fr); }
  nav.tabs{ flex-wrap: wrap; }
  .featured-row{ flex-direction: column; align-items: flex-start; }
  .featured-row .desc{ max-width: 100%; }
  .quiz-actions{ flex-direction: column; align-items: flex-start; gap: 8px; }
  .quiz-actions .left, .quiz-actions .right{ flex-wrap: wrap; }
  .modal{ padding: 18px 16px; }
  .qlist{ max-height: 360px; }
  .quiz-exam-layout{ flex-direction: column; }
  .exam-nav{ flex: 1 1 auto; width: 100%; order: 2; }
  .exam-nav-grid{ grid-template-columns: repeat(8, 1fr); }
  .dom-row{ flex-direction: column; align-items: flex-start; gap: 8px; }
  .dom-row-right{ width: 100%; }
  .dom-row-bar-wrap{ width: 100%; }
  .subject-bar{ grid-template-columns: repeat(3, 1fr); }
}

/* Mobile (max 480px) */
@media (max-width: 480px){
  body{ background-size: 20px 20px; }
  .stat-strip{ grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .rack-strip{ padding: 10px 12px; gap: 10px; }
  .rack-title h1{ font-size: 14px; }
  .rack-title small{ font-size: 10px; }
  nav.tabs button{ padding: 6px 9px; font-size: 11px; }
  .subject-bar{ grid-template-columns: repeat(2, 1fr); padding: 8px 12px; gap: 5px; }
  .subject-chip{ padding: 6px 8px; }
  .panel{ padding: 14px 14px; }
  .panel-grid{
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 6px;
  }
  .port .port-title{ font-size: 11.5px; }
  .qcard{ padding: 14px 14px; }
  .qcard .qtext{ font-size: 14.5px; }
  .opt{ padding: 10px 11px; }
  .btn{ padding: 9px 13px; font-size: 13px; }
  .btn.small{ padding: 5px 9px; font-size: 11px; }
  .domain-head .name{ font-size: 13.5px; }
  .featured-row{ flex-direction: column; gap: 10px; }
  .self-assess{ gap: 6px; }
  .chip{ padding: 5px 9px; font-size: 11px; }
  .modal{ padding: 14px 14px; max-width: 100%; }
  .modal-backdrop{ padding: 12px; }
  .qlist{ max-height: 280px; }
  .qrow{ flex-direction: column; align-items: flex-start; gap: 8px; }
  .radio-row{ flex-direction: column; gap: 8px; }
  .theme-switch{ flex-wrap: wrap; gap: 8px; }
  footer.foot .actions{ gap: 6px; }
  .edition-head{ flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; }
}

/* ---------- Tipps & Tricks ---------- */
nav.tabs button.disabled{
  opacity: 0.4;
  cursor: default;
}

.tips-placeholder-text{
  color: var(--muted);
  font-size: var(--fs-3);
  margin: 0;
}

.tip-merksatz{
  font-size: var(--fs-3);
  color: var(--ink);
  background: var(--neutral-bg);
  border-left: 3px solid var(--accent);
  padding: 10px 14px;
  border-radius: var(--radius);
  margin: 0 0 14px;
}
.tip-steps{
  margin: 0 0 16px;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tip-steps li{
  font-size: var(--fs-3);
  color: var(--ink-soft);
  line-height: 1.5;
}
.tip-example{
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 12px;
}
.tip-example-label{
  font-family: var(--mono);
  font-size: var(--fs-2);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 8px;
}
.tip-table{
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: var(--fs-2);
}
.tip-table th, .tip-table td{
  text-align: left;
  padding: 5px 8px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.tip-table th{
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
  width: 1%;
}
.tip-table tr:last-child th, .tip-table tr:last-child td{ border-bottom: none; }
.tip-table-full thead th{
  color: var(--muted);
  text-transform: uppercase;
  font-size: var(--fs-1);
  letter-spacing: 0.4px;
  width: auto;
}

/* Akkordeon-Layout */
.tip-card{
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}
.tip-card-head{
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--bg-panel-2);
  border: none;
  padding: 12px 14px;
  cursor: pointer;
  text-align: left;
}
.tip-card-title{
  font-size: var(--fs-3);
  font-weight: 700;
  color: var(--ink);
}
.tip-card-chevron{
  color: var(--muted);
  transition: transform .15s;
  flex: 0 0 auto;
}
.tip-card-head[aria-expanded="true"] .tip-card-chevron{ transform: rotate(180deg); }
.tip-card-body{
  padding: 16px 16px 4px;
}

/* ----------------------------------------------------------------
   13. AUTH-GATE (Login/Register, blockiert die App bis eingeloggt)
   ---------------------------------------------------------------- */
#authGate{
  position: fixed;
  inset: 0;
  z-index: 500;
  display:flex;
  align-items:center;
  justify-content:center;
  background: var(--bg);
  padding: 24px;
}
.auth-card{
  width: 100%;
  max-width: 380px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: 0 10px 30px color-mix(in srgb, var(--ink) 12%, transparent);
}
.auth-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 20px;
}
.auth-brand h1{
  font-family: var(--mono);
  font-size: var(--fs-4);
  letter-spacing: 1px;
  color: var(--heading-accent);
  margin:0;
}
.auth-seg{
  border-color: var(--line-strong);
  margin-bottom: 18px;
}
.auth-seg .seg-btn{ color: var(--muted); flex:1; padding: 9px 0; }
.auth-seg .seg-btn.active{ color: var(--header-active-text); }
#authForm label{
  display:block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
#authForm input{
  display:block;
  width: 100%;
  margin-top: 6px;
  font-family: var(--sans);
  font-size: 13.5px;
  padding: 9px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--ink);
}
.auth-submit{ width:100%; margin-top: 4px; }
.auth-error{
  background: var(--danger-soft);
  color: var(--danger-text);
  border-radius: var(--radius);
  padding: 9px 11px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ----------------------------------------------------------------
   14. ADMIN (admin.html/admin.js - Nutzer-/Invite-/Fragen-/Override-Verwaltung)
   ---------------------------------------------------------------- */
/* Admin-Seite bekommt mehr Breite als die Lern-App (.wrap max-width: 980px) -
   Tabellen (Nutzer/Fragen/Overrides) profitieren von mehr Platz, insbesondere
   damit die Aktions-Buttons in einer Zeile bleiben statt umzubrechen. */
.admin-wrap{ max-width: 1400px; }
.admin-count{
  font-family: var(--mono);
  font-size: var(--fs-2);
  font-weight: 400;
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0;
}
.admin-toolbar{
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 14px;
}
.admin-toolbar label{
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
}
.admin-toolbar input, .admin-toolbar select{
  font-family: var(--sans);
  font-size: 13.5px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--ink);
}
.admin-table-wrap{
  overflow-x: auto;
}
.admin-table{
  width: 100%;
}
.admin-table th{
  white-space: nowrap;
}
.admin-table td{
  vertical-align: top;
}
.admin-qtext{
  max-width: 320px;
}
.admin-col-narrow{ width: 1%; }
.admin-col-actions{ width: 1%; }
.admin-row-actions{
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.admin-confirm-check{
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}
.admin-pagination{
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

/* ---------- Zoom / Schriftgroesse (theme/fontScale.js) ---------- */
.font-scale-float{
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 40;
  display: flex;
  gap: 4px;
  align-items: center;
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 5px;
  box-shadow: 0 2px 10px color-mix(in srgb, var(--ink) 18%, transparent);
}
.font-scale-float .btn.small{ min-width: 32px; text-align:center; padding-left:7px; padding-right:7px; }

@media (max-width: 640px){
  .font-scale-float{ top: 8px; right: 8px; padding: 4px; gap: 3px; }
  .font-scale-float .btn.small{ min-width: 28px; padding-left:5px; padding-right:5px; font-size: calc(var(--font-scale) * 10px); }
}

/* ----------------------------------------------------------------
   16. FRAGETYPEN: ZUORDNUNG (match) / LÜCKENTEXT (cloze)
   ---------------------------------------------------------------- */
.match-wrap{ display:flex; flex-direction:column; gap:8px; }
.match-row{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.match-left, .match-right{
  font-size: var(--fs-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 9px 12px;
  background: var(--bg-panel);
  min-width: 140px;
  flex: 1 1 220px;
}
.match-left{ cursor:pointer; }
.match-left:hover{ border-color: var(--blueprint); background: var(--bg-panel-2); }
.match-left.selected{ border-color: var(--blueprint); background: var(--selected-bg); }
.match-right{ text-align:center; transition: border-color .1s, background .1s; }
.match-right.empty{ border-style: dashed; color: var(--muted); }
.match-right.filled{ color: var(--ink); cursor:pointer; }
.match-right.filled:hover{ border-color: var(--blueprint); }
.match-right.drag-over{ border-color: var(--blueprint); background: var(--selected-bg); border-style: solid; }
.match-arrow{ color: var(--muted); flex: 0 0 auto; }
.match-row.correct .match-right{ border-color: var(--success); background: var(--success-soft); color: var(--success-text); }
.match-row.wrong .match-right{ border-color: var(--danger); background: var(--danger-soft); color: var(--danger-text); }
.match-hint{ font-size: var(--fs-2); color: var(--danger-text); font-weight: 600; flex-basis:100%; margin-top: 2px; }
.match-right-num, .match-pool-num{
  display:inline-flex; align-items:center; justify-content:center;
  min-width: 24px; height: 24px; padding: 0 6px;
  border-radius: 999px;
  background: var(--accent);
  border: 1px solid var(--accent);
  font-size: var(--fs-2);
  font-weight: 700;
  color: #fff;
  margin-right: 6px;
}
.match-row.correct .match-right-num{ background: var(--success); border-color: var(--success); }
.match-row.wrong .match-right-num{ background: var(--danger); border-color: var(--danger); }
.exercise-instructions{
  font-size: var(--fs-2);
  color: var(--ink-soft);
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 9px 12px;
  margin-bottom: 16px;
}
.match-pool{ display:flex; flex-wrap:wrap; gap:8px; margin-top: 8px; padding-top: 14px; border-top: 1px solid var(--line); }
.match-pool-chip{
  font-size: var(--fs-2);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 6px 14px;
  background: var(--bg-panel);
  cursor: pointer;
}
.match-pool-chip:hover{ border-color: var(--blueprint); background: var(--bg-panel-2); }
.match-pool-chip.used{ opacity: 0.35; cursor: default; pointer-events: none; }
.match-pool-chip[draggable="true"]{ cursor: grab; }
.match-pool-chip.dragging{ opacity: 0.4; cursor: grabbing; }

.cloze-text{
  font-size: var(--fs-3);
  color: var(--ink);
  line-height: 2.1;
}
.cloze-blank{
  display:inline-block;
  min-width: 64px;
  text-align:center;
  padding: 3px 10px;
  margin: 0 2px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel-2);
  color: var(--muted);
  cursor:pointer;
  font-family: var(--mono);
  font-size: var(--fs-2);
}
.cloze-blank:hover{ border-color: var(--blueprint); }
.cloze-blank.filled{ border-style: solid; color: var(--ink); background: var(--selected-bg); }
.cloze-blank.correct{ border-color: var(--success); background: var(--success-soft); color: var(--success-text); }
.cloze-blank.wrong{ border-color: var(--danger); background: var(--danger-soft); color: var(--danger-text); }
.cloze-hint{ font-size: var(--fs-2); color: var(--danger-text); font-weight: 600; margin-left: 4px; }
.cloze-bank{ display:flex; flex-wrap:wrap; gap:8px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.cloze-chip{
  font-family: var(--mono);
  font-size: var(--fs-2);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 6px 14px;
  background: var(--bg-panel);
  cursor: pointer;
}
.cloze-chip:hover{ border-color: var(--blueprint); background: var(--bg-panel-2); }
.cloze-chip.selected{ border-color: var(--blueprint); background: var(--selected-bg); }
.cloze-chip.used{ opacity: 0.35; cursor: default; pointer-events: none; }

.sample-tables{ display:flex; flex-wrap:wrap; gap: 16px; margin-bottom: 16px; }
.sample-table-block{ flex: 1 1 220px; min-width: 200px; }
.sample-table-title{
  font-family: var(--mono);
  font-size: clamp(calc(var(--font-scale) * 14px), calc(var(--font-scale) * 2.5vw), calc(var(--font-scale) * 16.5px));
  font-weight: 700;
  color: var(--blueprint);
  margin-bottom: 6px;
}
.sample-table-alias{ color: var(--muted); font-weight: 400; }
.sample-table{
  width: 100%;
  border-collapse: collapse;
  font-size: clamp(calc(var(--font-scale) * 14px), calc(var(--font-scale) * 2.5vw), calc(var(--font-scale) * 16.5px));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}
.sample-table th, .sample-table td{
  text-align: left;
  padding: 5px 9px;
  border-bottom: 1px solid var(--line);
}
.sample-table th{
  background: var(--bg-panel-2);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-weight: 700;
}
.sample-table td{ font-family: var(--mono); color: var(--ink); }
.sample-table tbody tr:last-child td{ border-bottom: none; }

/* ----------------------------------------------------------------
   17. ADMIN-STATISTIKEN
   ---------------------------------------------------------------- */
.admin-stat-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.admin-stat-tile{
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel-2);
}
.admin-stat-num{
  font-family: var(--mono);
  font-size: clamp(calc(var(--font-scale) * 22px), calc(var(--font-scale) * 4vw), calc(var(--font-scale) * 28px));
  font-weight: 700;
  color: var(--blueprint);
}
.admin-stat-lbl{
  font-size: var(--fs-2);
  color: var(--muted);
}

.chart-wrap{ width: 100%; }
.line-chart{
  width: 100%;
  height: 180px;
  display: block;
  overflow: visible;
}
.chart-hit{ cursor: default; }
.chart-xaxis{
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-1);
  color: var(--muted);
  font-family: var(--mono);
  margin-top: 4px;
}
.chart-legend{
  display: flex;
  gap: 16px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.chart-legend-item{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-2);
  color: var(--ink-soft);
}
.chart-legend-dot{
  width: 9px;
  height: 9px;
  border-radius: 999px;
  flex-shrink: 0;
}

.admin-rank{
  font-family: var(--mono);
  color: var(--muted);
  text-align: center;
}
.admin-bar-cell{ display: flex; align-items: center; gap: 8px; min-width: 160px; }
.admin-mini-bar-track{
  flex: 1;
  height: 8px;
  border-radius: 999px;
  background: var(--bg-panel-2);
  overflow: hidden;
}
.admin-mini-bar-fill{
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
}