/* ============================================================
   GOLDEN ENGLISH — Karteikasten / Referenzwerk-Gestaltung
   Serife (Quellnachweis) fuer Kopfwoerter, klare Sans fuer die
   Oberflaeche, Mono fuer alle Zahlen/Statistiken/Katalognummern.
   ============================================================ */

:root {
  /* Papier & Flaechen */
  --color-bg: #EAE7DD;
  --color-bg-deep: #DDD9CB;
  --color-surface: #FAF9F5;
  --color-surface-raised: #FFFFFF;

  /* Tinte / Text */
  --color-ink: #1E2530;
  --color-ink-soft: #5C6470;
  --color-ink-faint: #8B9099;

  /* Messing / Markenfarbe ("Golden") — zurueckhaltend eingesetzt */
  --color-brass: #8A6A2E;
  --color-brass-deep: #6B5021;
  --color-brass-bg: #F1E8D2;

  /* Linien */
  --color-rule: #CFC9B8;
  --color-rule-strong: #B7AF98;

  /* Semantik */
  --color-success: #335E3B;
  --color-success-bg: #E4EBE0;
  --color-error: #8A382A;
  --color-error-bg: #F3E2DC;

  --radius-card: 3px;
  --radius-btn: 4px;
  --radius-input: 4px;
  --radius-chip: 3px;

  --font-serif: "Source Serif 4", "Iowan Old Style", "Georgia", serif;
  --font-sans: "IBM Plex Sans", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", "SF Mono", monospace;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 19px;
  line-height: 1.55;
}

/* --- Reise-Leiste: schmale Linie, keine Beschriftung --- */
.countdown-bar-track {
  width: 100%;
  height: 3px;
  background: var(--color-rule);
}
.countdown-bar-fill {
  height: 3px;
  background: var(--color-brass);
  transition: width 1s ease;
}

a {
  color: var(--color-brass-deep);
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

/* --- Kopfzeile / Wortmarke --- */
header.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 24px 16px;
  max-width: 760px;
  margin: 0 auto;
}

header.topbar .brand {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  text-decoration: none;
}

header.topbar .brand .brand-divider {
  color: var(--color-brass);
  font-weight: 400;
  margin: 0 2px;
}

header.topbar .greeting {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--color-ink-soft);
  text-transform: uppercase;
}

nav.main-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 18px;
  border-bottom: 1px solid var(--color-rule-strong);
}

nav.main-nav a {
  text-decoration: none;
  color: var(--color-ink-soft);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 0 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -19px;
}

nav.main-nav a:hover {
  color: var(--color-ink);
}

nav.main-nav a.is-active {
  color: var(--color-ink);
  border-bottom-color: var(--color-brass);
}

nav.main-nav a.logout {
  margin-left: auto;
  color: var(--color-ink-faint);
}

/* --- Ueberschriften --- */
h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--color-ink);
  font-weight: 600;
  letter-spacing: 0.01em;
}

h1 { font-size: 1.9rem; margin-bottom: 4px; }
h2 { font-size: 1.25rem; margin-bottom: 4px; }

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brass-deep);
  margin-bottom: 6px;
}

.page-intro {
  color: var(--color-ink-soft);
  margin-top: 0;
  margin-bottom: 28px;
}

/* --- Karten / Panele --- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 26px 28px;
  margin-bottom: 22px;
  border: 1px solid var(--color-rule);
}

.card > h2 {
  border-bottom: 1px solid var(--color-rule);
  padding-bottom: 14px;
  margin-bottom: 18px;
}

.card-highlight {
  border-color: var(--color-brass);
  border-left: 3px solid var(--color-brass);
  background: var(--color-brass-bg);
}

.card-highlight h2 {
  border-bottom-color: var(--color-rule-strong);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 13px 24px;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  width: 100%;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--color-ink);
  color: var(--color-surface);
}
.btn-primary:hover { background: #323B49; }

.btn-accent {
  background: var(--color-brass);
  color: #FFFDF8;
}
.btn-accent:hover { background: var(--color-brass-deep); }

.btn-success {
  background: var(--color-surface);
  color: var(--color-success);
  border-color: var(--color-success);
}
.btn-success:hover { background: var(--color-success-bg); }

.btn-accent-outline {
  background: var(--color-surface);
  color: var(--color-brass-deep);
  border-color: var(--color-brass);
}
.btn-accent-outline:hover { background: var(--color-brass-bg); }

.btn-soft {
  background: var(--color-surface);
  border-color: var(--color-rule-strong);
  color: var(--color-ink);
}
.btn-soft:hover { border-color: var(--color-ink-soft); }

.btn-danger {
  background: var(--color-surface);
  color: var(--color-error);
  border-color: var(--color-error);
}
.btn-danger:hover { background: var(--color-error-bg); }

.btn-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 22px;
}

@media (min-width: 600px) {
  .btn-row.horizontal {
    flex-direction: row;
  }
}

/* --- Lernkarte: Karteikasten-Optik --- */
.flip-card {
  perspective: 1400px;
  margin-bottom: 10px;
}
.flip-card-inner {
  position: relative;
  width: 100%;
  min-height: 270px;
  transition: transform 0.5s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}
.flip-card-inner.is-flipped {
  transform: rotateY(180deg);
}
.flip-card-face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-rule);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 28px 26px;
  text-align: center;
}
.flip-card-back {
  transform: rotateY(180deg);
}

.card-index {
  position: absolute;
  top: 16px;
  left: 18px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--color-ink-faint);
}

.card-tag {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brass-deep);
}

.session-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
  padding: 0 2px;
}
.session-meta .eyebrow { margin-bottom: 0; }
.session-meta .session-remaining {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-ink-soft);
}

.flashcard {
  text-align: center;
}
.flashcard .word-en {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
}
.flashcard .word-de {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  color: var(--color-ink-soft);
  margin: 6px 0 0;
}

.card-rule {
  width: 56px;
  height: 1px;
  background: var(--color-rule-strong);
  margin: 16px auto 18px;
}

.speak-btn {
  background: var(--color-surface);
  color: var(--color-ink);
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-btn);
  width: 46px;
  height: 46px;
  cursor: pointer;
  margin: 4px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.speak-btn:hover {
  border-color: var(--color-brass);
  color: var(--color-brass-deep);
}
.speak-btn svg {
  width: 20px;
  height: 20px;
}

.flip-hint {
  margin-top: 20px;
  background: none;
  border: none;
  color: var(--color-ink-soft);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 8px;
}
.flip-hint:hover { color: var(--color-ink); }

/* --- Fortschritt --- */
.progress-bar-bg {
  background: var(--color-rule);
  border-radius: 999px;
  height: 6px;
  overflow: hidden;
  margin: 8px 0 18px;
}
.progress-bar-fill {
  background: var(--color-brass);
  height: 100%;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}
.stat-row .stat-label {
  font-weight: 600;
  font-size: 1rem;
}
.stat-row .stat-figure {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.leaderboard-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--color-rule);
  font-size: 1.05rem;
}
.leaderboard-row:last-child { border-bottom: none; }
.leaderboard-row .rank {
  font-family: var(--font-mono);
  color: var(--color-ink-faint);
  margin-right: 10px;
}
.leaderboard-row .score {
  font-family: var(--font-mono);
  font-weight: 600;
}

/* --- Meldungen --- */
.flash {
  padding: 14px 18px;
  border-radius: var(--radius-card);
  margin-bottom: 18px;
  font-weight: 500;
  border-left: 3px solid;
  background: var(--color-surface);
}
.flash.success { border-color: var(--color-success); color: var(--color-success); background: var(--color-success-bg); }
.flash.error { border-color: var(--color-error); color: var(--color-error); background: var(--color-error-bg); }

/* --- Formulare --- */
label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
  margin-top: 18px;
  color: var(--color-ink-soft);
}
input[type="text"], input[type="password"] {
  width: 100%;
  padding: 13px 14px;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  border-radius: var(--radius-input);
  border: 1px solid var(--color-rule-strong);
  background: var(--color-surface-raised);
  color: var(--color-ink);
}
input[type="text"]:focus, input[type="password"]:focus {
  outline: none;
  border-color: var(--color-brass);
  box-shadow: 0 0 0 3px var(--color-brass-bg);
}

/* --- Listen / Tabellen --- */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 -28px;
  padding: 0 28px;
}
table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 1rem;
}
table th {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--color-rule-strong);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  font-weight: 500;
}
table td {
  text-align: left;
  padding: 13px 8px;
  border-bottom: 1px solid var(--color-rule);
}
table td.col-no {
  font-family: var(--font-mono);
  color: var(--color-ink-faint);
  font-size: 0.85rem;
  white-space: nowrap;
}
table td.col-actions {
  white-space: nowrap;
  text-align: right;
}
table td.col-actions a,
table td.col-actions button {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-ink-soft);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
table td.col-actions a:hover { color: var(--color-ink); }
table td.col-actions button:hover { color: var(--color-error); }
table td.col-actions .sep {
  color: var(--color-rule-strong);
  margin: 0 8px;
}

/* Unter 600px: Zeilen stapeln statt seitlich scrollen lassen
   (besser fuer Touch-Bedienung als ein Tabellen-Scrollbereich) */
@media (max-width: 600px) {
  .table-scroll {
    overflow-x: visible;
    margin: 0;
    padding: 0;
  }
  table { min-width: 0; }
  table thead { display: none; }
  table tr {
    display: block;
    border-bottom: 1px solid var(--color-rule-strong);
    padding: 14px 0;
  }
  table tr:last-child { border-bottom: none; }
  table td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    border-bottom: none;
    padding: 5px 0;
  }
  table td::before {
    content: attr(data-label);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--color-ink-faint);
    flex-shrink: 0;
  }
  table td.col-no { order: -1; }
  table td.col-actions {
    text-align: left;
    margin-top: 4px;
  }
  table td.col-empty {
    display: block;
  }
  table td.col-empty::before {
    content: none;
  }
}

/* --- Wort-Bank fuer Satz-Umordnen --- */
.word-order-area {
  margin: 20px 0;
}
.word-order-area .area-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 8px;
  display: block;
}
.word-box {
  min-height: 60px;
  border: 1px dashed var(--color-rule-strong);
  border-radius: var(--radius-card);
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.word-answer {
  border-style: solid;
  border-color: var(--color-brass);
  background: var(--color-brass-bg);
}
.word-chip {
  background: var(--color-surface-raised);
  color: var(--color-ink);
  border: 1px solid var(--color-rule-strong);
  padding: 9px 14px;
  border-radius: var(--radius-chip);
  font-size: 1.02rem;
  cursor: pointer;
  user-select: none;
}
.word-answer .word-chip {
  border-color: var(--color-brass);
}

.test-progress {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.mc-options {
  border-top: 1px solid var(--color-rule);
}
.mc-options label {
  display: flex;
  align-items: center;
  gap: 14px;
  background: none;
  border: none;
  border-bottom: 1px solid var(--color-rule);
  border-radius: 0;
  padding: 16px 4px;
  margin-bottom: 0;
  font-weight: 500;
  font-size: 1.08rem;
  color: var(--color-ink);
  cursor: pointer;
}
.mc-options label:hover {
  background: var(--color-bg-deep);
}
.mc-options input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-brass);
}

/* --- Ergebnis-Anzeige --- */
.result-score {
  font-family: var(--font-mono);
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--color-ink);
  margin: 6px 0 2px;
}
.result-score .of {
  font-size: 1.5rem;
  color: var(--color-ink-faint);
  font-weight: 400;
}

.center-text { text-align: center; }
.muted { color: var(--color-ink-soft); }

/* --- Leerer Zustand --- */
.empty-state {
  text-align: center;
  padding: 12px 0;
}
.empty-state .eyebrow { display: block; }