/* =============================================================================
   TacLearn – Haupt-Stylesheet
   Design-Konzept: "Tactical HUD" – Militärisches Command Interface
   Dark Mode only, Neon-Akzente, Monospace-Typografie für Headers
   Optimiert für Mobile First (320px – 1440px)
   ============================================================================= */

/* Google Fonts – Tactical Feel */
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Exo+2:wght@300;400;600;700&display=swap');

/* =============================================================================
   CSS Custom Properties – Design-System
   ============================================================================= */
:root {
  /* Farben */
  --c-bg:        #0d0d0d;
  --c-surface:   #161616;
  --c-panel:     #1e1e1e;
  --c-border:    #2a2a2a;
  --c-text:      #e8e8e8;
  --c-muted:     #888;
  --c-primary:   #00e676;   /* Neon Grün – Erfolg, Primär */
  --c-secondary: #00b0ff;   /* Cyan – Info, Links */
  --c-warning:   #ffab00;   /* Amber – Streak, Warnung */
  --c-danger:    #ff1744;   /* Rot – Fehler */
  --c-gold:      #ffd600;   /* Gold – Abzeichen, Rang */
  --c-xp:        #e040fb;   /* Lila – XP-Anzeige */

  /* Glows */
  --glow-primary:   0 0 12px rgba(0, 230, 118, 0.4);
  --glow-secondary: 0 0 12px rgba(0, 176, 255, 0.4);
  --glow-gold:      0 0 15px rgba(255, 214, 0, 0.5);
  --glow-danger:    0 0 12px rgba(255, 23, 68, 0.4);

  /* Typografie */
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;
  --font-body: 'Exo 2', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Abstände */
  --s-xs: 4px;
  --s-sm: 8px;
  --s-md: 16px;
  --s-lg: 24px;
  --s-xl: 32px;

  /* Radien */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;

  /* Transitions */
  --t-fast: 0.15s ease;
  --t-mid:  0.3s ease;
  --t-slow: 0.5s ease;

  /* Navbar */
  --navbar-h: 60px;     /* Desktop: oben */
  --bottomnav-h: 68px;  /* Mobile: unten */
}

/* =============================================================================
   Reset & Basis
   ============================================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  /* Platz für Bottom-Nav + iOS Home Bar */
  padding-bottom: calc(var(--bottomnav-h) + env(safe-area-inset-bottom, 0px));
  /* Mindesthöhe damit auf iOS der Inhalt sichtbar ist */
  min-height: 100dvh;
}

/* Desktop: Platz für Top-Nav */
@media (min-width: 768px) {
  body {
    padding-top: var(--navbar-h);
    padding-bottom: 0;
  }
}

/* Subtiles Hintergrundmuster – "Command Grid" */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,230,118,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,230,118,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

#app { position: relative; z-index: 1; }

/* =============================================================================
   Typografie
   ============================================================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.3;
  color: var(--c-text);
}

h1 { font-size: clamp(1.4rem, 4vw, 2rem); }
h2 { font-size: clamp(1.1rem, 3vw, 1.5rem); color: var(--c-primary); }
h3 { font-size: 1rem; color: var(--c-secondary); }
h4 { font-size: 0.9rem; }

p { margin-bottom: var(--s-sm); }

a { color: var(--c-secondary); text-decoration: none; }
a:hover { color: var(--c-primary); }

/* =============================================================================
   Navigation – Desktop (Top) / Mobile (Bottom)
   ============================================================================= */
#main-nav {
  position: fixed;
  background: rgba(14, 14, 14, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;

  /* Mobile: Bottom */
  bottom: 0; left: 0; right: 0;
  height: var(--bottomnav-h);
  border-top: 1px solid var(--c-border);
  padding: 0 var(--s-sm);
  justify-content: space-around;
}

/* Desktop: Top */
@media (min-width: 768px) {
  #main-nav {
    top: 0; bottom: auto;
    height: var(--navbar-h);
    border-top: none;
    border-bottom: 1px solid var(--c-primary);
    padding: 0 var(--s-xl);
    justify-content: space-between;
    box-shadow: 0 2px 20px rgba(0,230,118,0.15);
  }
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--c-primary);
  text-shadow: var(--glow-primary);
  display: none;
  letter-spacing: 0.2em;
}

@media (min-width: 768px) {
  .nav-logo { display: block; }
}

.nav-links {
  display: flex;
  width: 100%;
  justify-content: space-around;
  gap: 0;
}

@media (min-width: 768px) {
  .nav-links {
    width: auto;
    gap: var(--s-xs);
  }
}

.nav-btn {
  background: none;
  border: none;
  color: var(--c-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--s-sm) var(--s-md);
  cursor: pointer;
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
  font-family: var(--font-body);
  position: relative;
  min-width: 56px;
}

/* Mobile: Icon groß, Label klein */
.nav-btn .icon { font-size: 1.3rem; }
.nav-btn .label { font-size: 0.6rem; letter-spacing: 0.05em; text-transform: uppercase; }

/* Desktop: Horizontal nebeneinander */
@media (min-width: 768px) {
  .nav-btn {
    flex-direction: row;
    gap: var(--s-sm);
    padding: var(--s-sm) var(--s-md);
  }
  .nav-btn .icon { font-size: 1rem; }
  .nav-btn .label { font-size: 0.85rem; }
}

.nav-btn:hover { color: var(--c-primary); background: rgba(0,230,118,0.05); }
.nav-btn.active { color: var(--c-primary); }
.nav-btn.active .icon { filter: drop-shadow(0 0 4px var(--c-primary)); }

/* Active-Indikator auf Mobile */
.nav-btn.active::before {
  content: '';
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 20px; height: 2px;
  background: var(--c-primary);
  border-radius: 0 0 2px 2px;
}

@media (min-width: 768px) {
  .nav-btn.active::before {
    top: auto; bottom: -1px;
    width: 100%; height: 2px;
    left: 0; transform: none;
  }
}

/* Notification-Dot auf Nav-Icon */
.nav-btn .notif-dot {
  position: absolute;
  top: 6px; right: 8px;
  width: 8px; height: 8px;
  background: var(--c-danger);
  border-radius: 50%;
  border: 1px solid var(--c-bg);
}

/* =============================================================================
   Views & Layout
   ============================================================================= */
.view {
  min-height: 100dvh;
  padding: var(--s-md);
  animation: viewFadeIn 0.25s ease;
}

.view.hidden { display: none !important; }

@media (min-width: 768px) {
  .view { max-width: 960px; margin: 0 auto; padding: var(--s-xl) var(--s-lg); }
}

@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =============================================================================
   Cards & Panels
   ============================================================================= */
.card {
  background: var(--c-panel);
  border-radius: var(--r-md);
  padding: var(--s-md);
  margin-bottom: var(--s-md);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-primary);
  transition: transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
  border-left-color: var(--c-primary);
}

.card.card-secondary { border-left-color: var(--c-secondary); }
.card.card-warning   { border-left-color: var(--c-warning); }
.card.card-gold      { border-left-color: var(--c-gold); box-shadow: var(--glow-gold); }

.rich-content {
  line-height: 1.6;
}

.rich-content > *:last-child {
  margin-bottom: 0;
}

.rich-content figure {
  margin: 14px 0;
}

.rich-content figcaption {
  margin-top: 8px;
  color: var(--c-muted);
  font-size: 0.82rem;
}

.rich-content img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.28);
}

.zoomable-image {
  cursor: zoom-in;
  transition: transform var(--t-mid), box-shadow var(--t-mid), border-color var(--t-mid);
}

.zoomable-image:focus-visible {
  outline: 2px solid var(--c-secondary);
  outline-offset: 3px;
}

.zoomable-image.is-zoomed {
  cursor: zoom-out;
  transform: scale(1.75);
  transform-origin: center center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.42);
  position: relative;
  z-index: 3;
}

.supplemental-image {
  margin-top: 14px;
}

.img-broken-placeholder {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border: 1px dashed var(--c-border);
  border-radius: 8px;
  color: var(--c-muted);
  font-size: 0.82rem;
  margin: 8px 0;
}

.supplemental-image figcaption {
  margin-top: 8px;
  color: var(--c-muted);
  font-size: 0.82rem;
}

.flashcard-supplemental-image {
  margin-top: 18px;
}

.case-shell {
  display: grid;
  gap: 16px;
}

.case-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
}

.case-score-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--c-gold);
  border: 1px solid rgba(255, 214, 0, 0.35);
  background: rgba(255, 214, 0, 0.08);
  padding: 8px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.case-grid {
  display: grid;
  gap: 16px;
}

@media (min-width: 900px) {
  .case-grid {
    grid-template-columns: 1.35fr 0.95fr;
  }
}

.case-main-card,
.case-side-card {
  margin-bottom: 0;
}

.case-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--c-warning);
  margin-bottom: 10px;
}

.case-options {
  display: grid;
  gap: 10px;
}

.case-option-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.case-options.is-locked {
  opacity: 0.45;
  pointer-events: none;
}

.case-lookup-box {
  border: 1px solid rgba(255, 214, 0, 0.2);
  background: rgba(255, 214, 0, 0.06);
  border-radius: var(--r-md);
  padding: 14px 16px;
  margin-bottom: 14px;
}

.case-reflection-box {
  border: 1px solid rgba(0, 176, 255, 0.18);
  background: rgba(0, 176, 255, 0.06);
  border-radius: var(--r-md);
  padding: 14px 16px;
  margin-bottom: 14px;
}

.case-lookup-input {
  flex: 1 1 280px;
  min-width: 240px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-text);
  padding: 10px 12px;
  border-radius: var(--r-sm);
}

.case-reflection-input {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  margin-bottom: 10px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-text);
  padding: 12px;
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  line-height: 1.55;
}

.case-choice {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(255,255,255,0.03), rgba(255,255,255,0.06));
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.case-choice input {
  margin-top: 3px;
  accent-color: var(--c-primary);
}

.case-choice.correct {
  background: rgba(0, 230, 118, 0.12);
  border-color: rgba(0, 230, 118, 0.35);
  color: var(--c-primary);
}

.case-choice.wrong {
  background: rgba(255, 23, 68, 0.12);
  border-color: rgba(255, 23, 68, 0.35);
  color: #ff8aa0;
}

.case-choice.neutral {
  opacity: 0.78;
}

.case-option {
  display: block;
  width: 100%;
  padding: 14px 16px;
  min-height: 60px;
  background: linear-gradient(135deg, rgba(255,255,255,0.03), rgba(255,255,255,0.06));
  border: 1px solid var(--c-border);
  color: var(--c-text);
  text-align: left;
  font-weight: 600;
  line-height: 1.35;
  white-space: normal;
  word-break: break-word;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.case-option:focus {
  outline: none;
}

.case-option:focus-visible {
  border-color: var(--c-secondary);
  box-shadow: 0 0 0 3px rgba(0, 176, 255, 0.18);
}

.case-option.correct {
  background: rgba(0, 230, 118, 0.12);
  border-color: rgba(0, 230, 118, 0.35);
  color: var(--c-primary);
}

.case-option.wrong {
  background: rgba(255, 23, 68, 0.12);
  border-color: rgba(255, 23, 68, 0.35);
  color: #ff8aa0;
}

.case-feedback {
  border-radius: var(--r-md);
  padding: 14px 16px;
  border: 1px solid var(--c-border);
}

.case-feedback.ok {
  background: rgba(0, 230, 118, 0.08);
  border-color: rgba(0, 230, 118, 0.25);
}

.case-feedback.bad {
  background: rgba(255, 171, 0, 0.08);
  border-color: rgba(255, 171, 0, 0.25);
}

.case-feedback-norm {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-secondary);
}

.case-score-row {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--c-warning);
}

.case-duty-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.case-duty-card,
.case-question-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 14px;
}

.case-duty-head,
.case-question-title {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.case-duty-subtle {
  color: var(--c-muted);
  font-size: 0.78rem;
  margin-bottom: 10px;
}

.case-duty-options,
.case-mini-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.case-duty-row {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.case-duty-row-label {
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.case-binary-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.case-binary-option,
.case-mini-option {
  display: block;
  border: 1px solid var(--c-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--c-text);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  min-height: 56px;
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  width: 100%;
}

.case-binary-option-large {
  min-height: 60px;
  font-size: 1rem;
}

.case-binary-option.selected,
.case-mini-option.selected {
  border-color: rgba(0, 230, 118, 0.35);
  background: rgba(0, 230, 118, 0.12);
  color: var(--c-primary);
}

.case-binary-option.correct,
.case-mini-option.correct {
  border-color: rgba(0, 230, 118, 0.35);
  background: rgba(0, 230, 118, 0.12);
  color: var(--c-primary);
}

.case-binary-option.wrong,
.case-mini-option.wrong {
  border-color: rgba(255, 23, 68, 0.35);
  background: rgba(255, 23, 68, 0.12);
  color: #ff8aa0;
}

.case-question-set {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.case-feedback-line {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  font-size: 0.9rem;
}

.case-feedback-line.ok {
  background: rgba(0, 230, 118, 0.08);
  border: 1px solid rgba(0, 230, 118, 0.2);
}

.case-feedback-line.bad {
  background: rgba(255, 23, 68, 0.08);
  border: 1px solid rgba(255, 23, 68, 0.2);
}

.case-feedback-line.warn {
  background: rgba(255, 171, 0, 0.08);
  border: 1px solid rgba(255, 171, 0, 0.2);
}

.case-analysis-list {
  margin: 12px 0 0 18px;
  color: var(--c-muted);
  font-size: 0.82rem;
}

.flashcard-face-content h1,
.flashcard-face-content h2,
.flashcard-face-content h3,
.flashcard-face-content h4,
.flashcard-face-content h5,
.flashcard-face-content h6 {
  margin-bottom: 10px;
}

.flashcard-face-front {
  color: var(--c-secondary);
}

.flashcard-face-back {
  color: var(--c-primary);
}

.checkpoint-question h1,
.checkpoint-question h2,
.checkpoint-question h3,
.quiz-question-content h1,
.quiz-question-content h2,
.quiz-question-content h3 {
  margin-bottom: 10px;
}

.quiz-explanation-content {
  color: var(--c-muted);
  font-size: 0.82rem;
}

/* =============================================================================
   Buttons
   ============================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-sm);
  background: var(--c-primary);
  color: #000;
  border: none;
  border-radius: var(--r-sm);
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  width: 100%;
  transition: transform var(--t-fast), box-shadow var(--t-fast), opacity var(--t-fast);
  user-select: none;
  -webkit-user-select: none;
}

.btn:active { transform: scale(0.97); }
.btn:hover  { box-shadow: var(--glow-primary); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}
.btn-secondary:hover { background: rgba(0,230,118,0.08); }

.btn-danger {
  background: var(--c-danger);
  color: #fff;
}
.btn-sm { padding: 8px 14px; font-size: 0.78rem; width: auto; }
.btn-inline { width: auto; }

/* =============================================================================
   Fortschrittsbalken
   ============================================================================= */
.progress-track {
  background: var(--c-border);
  border-radius: 99px;
  height: 8px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c-primary), #69f0ae);
  border-radius: 99px;
  transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--glow-primary);
}

.progress-fill.fill-secondary { background: linear-gradient(90deg, var(--c-secondary), #80d8ff); }
.progress-fill.fill-gold      { background: linear-gradient(90deg, var(--c-gold), #fff176); }

/* =============================================================================
   XP-Badge / Streak-Badge
   ============================================================================= */
.xp-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(224, 64, 251, 0.15);
  color: var(--c-xp);
  border: 1px solid rgba(224,64,251,0.4);
  border-radius: 99px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: bold;
}

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 171, 0, 0.12);
  color: var(--c-warning);
  border: 1px solid rgba(255,171,0,0.3);
  border-radius: 99px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* =============================================================================
   Rangliste
   ============================================================================= */
.leaderboard-item {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  padding: var(--s-sm) var(--s-md);
  border-radius: var(--r-sm);
  transition: background var(--t-fast);
  min-width: 0;
}

.leaderboard-item:hover { background: rgba(255,255,255,0.03); }

.leaderboard-item.top-1 { background: rgba(255,214,0,0.08); border: 1px solid rgba(255,214,0,0.3); }
.leaderboard-item.top-2 { background: rgba(192,192,192,0.06); }
.leaderboard-item.top-3 { background: rgba(205,127,50,0.06); }
.leaderboard-item.is-me  { background: rgba(0,230,118,0.08); border: 1px solid rgba(0,230,118,0.3); }

.lb-rank {
  font-family: var(--font-mono);
  font-size: 1rem;
  min-width: 36px;
  text-align: center;
  color: var(--c-muted);
}

.lb-rank.gold   { color: var(--c-gold); text-shadow: var(--glow-gold); }
.lb-rank.silver { color: #c0c0c0; }
.lb-rank.bronze { color: #cd7f32; }

.lb-avatar { font-size: 1.6rem; }

.module-description,
#card-content,
.flashcard-front,
.flashcard-back {
  line-height: 1.6;
}

.module-description img,
#quiz-feedback img,
#quiz-view .card img,
#practice-view .card img,
#card-content img,
.flashcard-front img,
.flashcard-back img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 12px auto;
  border-radius: 12px;
  border: 1px solid var(--c-border);
}

.module-description figure,
#quiz-feedback figure,
#quiz-view .card figure,
#practice-view .card figure,
#card-content figure,
.flashcard-front figure,
.flashcard-back figure {
  margin: 14px 0;
}

.module-description figcaption,
#quiz-feedback figcaption,
#quiz-view .card figcaption,
#practice-view .card figcaption,
#card-content figcaption,
.flashcard-front figcaption,
.flashcard-back figcaption {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--c-muted);
  text-align: center;
}

.lb-info { flex: 1; min-width: 0; }
.lb-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-rank-title { font-size: 0.75rem; color: var(--c-muted); }

.lb-xp {
  font-family: var(--font-mono);
  color: var(--c-xp);
  font-size: 0.85rem;
  text-align: right;
  flex-shrink: 0;
}

/* =============================================================================
   Modul-Grid & Unit-Cards
   ============================================================================= */
.module-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-md);
  margin-top: var(--s-md);
}

@media (min-width: 540px) {
  .module-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .module-grid { grid-template-columns: repeat(3, 1fr); }
}

.module-tile {
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--s-lg);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all var(--t-mid);
  position: relative;
  overflow: hidden;
}

.module-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,230,118,0.05), transparent);
  opacity: 0;
  transition: opacity var(--t-mid);
}

.module-tile:hover { border-color: var(--c-primary); transform: translateY(-4px); box-shadow: var(--glow-primary); }
.module-tile:hover::after { opacity: 1; }

.module-tile.locked { opacity: 0.5; cursor: not-allowed; }

.module-icon { font-size: 2.5rem; margin-bottom: var(--s-md); }

.module-tile h3 { color: var(--c-text); font-size: 0.9rem; margin-bottom: var(--s-sm); }
.module-tile p  { color: var(--c-muted); font-size: 0.8rem; flex: 1; }

/* =============================================================================
   VENÜ-Phasen-Indikator
   ============================================================================= */
.venu-indicator {
  display: flex;
  gap: var(--s-sm);
  margin-bottom: var(--s-md);
  padding: var(--s-sm) var(--s-md);
  background: var(--c-surface);
  border-radius: var(--r-md);
  border: 1px solid var(--c-border);
}

.venu-step {
  flex: 1;
  text-align: center;
  padding: var(--s-xs) var(--s-sm);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--c-muted);
  transition: all var(--t-mid);
}

.venu-step.active {
  background: rgba(0,230,118,0.15);
  color: var(--c-primary);
  border: 1px solid rgba(0,230,118,0.3);
}

.venu-step.done { color: var(--c-primary); opacity: 0.5; }

/* =============================================================================
   Quiz-Optionen
   ============================================================================= */
.quiz-option {
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  color: var(--c-text);
  text-align: left;
  padding: var(--s-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  margin-bottom: var(--s-sm);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: all var(--t-fast);
  width: 100%;
  text-transform: none;
  letter-spacing: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.quiz-option:focus {
  outline: none;
}

.quiz-option:focus-visible {
  border-color: var(--c-secondary);
  box-shadow: 0 0 0 3px rgba(0, 176, 255, 0.18);
  background: rgba(0,176,255,0.06);
}

@media (hover: hover) and (pointer: fine) {
  .quiz-option:hover:not(:disabled) {
    border-color: var(--c-secondary);
    background: rgba(0,176,255,0.06);
  }

  .case-option:hover:not(:disabled) {
    border-color: var(--c-secondary);
    background: rgba(0,176,255,0.06);
  }
}

.quiz-option.correct  { border-color: var(--c-primary)  !important; background: rgba(0,230,118,0.12) !important; color: var(--c-primary); }
.quiz-option.wrong    { border-color: var(--c-danger)   !important; background: rgba(255,23,68,0.12)  !important; color: var(--c-danger); }
.quiz-option:disabled { cursor: default; }

/* =============================================================================
   Flashcard
   ============================================================================= */
.flashcard-wrap {
  perspective: 1200px;
  height: 220px;
  cursor: pointer;
  margin-bottom: var(--s-md);
}

.flashcard-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.flashcard-inner.flipped { transform: rotateY(180deg); }

.flashcard-front,
.flashcard-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--s-lg);
}

.flashcard-front {
  background: var(--c-panel);
  border: 1.5px solid var(--c-secondary);
  box-shadow: var(--glow-secondary);
}

.flashcard-back {
  background: var(--c-panel);
  border: 1.5px solid var(--c-primary);
  box-shadow: var(--glow-primary);
  transform: rotateY(180deg);
}

/* =============================================================================
   Abzeichen-Grid
   ============================================================================= */
.badge-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-sm);
}

.badge-item {
  background: rgba(255,214,0,0.08);
  border: 1px solid rgba(255,214,0,0.3);
  border-radius: var(--r-md);
  padding: var(--s-sm) var(--s-md);
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  font-size: 0.82rem;
  transition: all var(--t-fast);
}

.badge-item:hover { background: rgba(255,214,0,0.15); box-shadow: var(--glow-gold); }
.badge-item .badge-icon { font-size: 1.3rem; }

/* Gesperrtes Abzeichen */
.badge-item.locked {
  background: var(--c-surface);
  border-color: var(--c-border);
  opacity: 0.5;
  filter: grayscale(1);
}

/* =============================================================================
   Daily Mission Cards
   ============================================================================= */
.mission-card {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  padding: var(--s-md);
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  margin-bottom: var(--s-sm);
  transition: all var(--t-fast);
}

.mission-card.completed {
  border-color: var(--c-primary);
  background: rgba(0,230,118,0.05);
}

.mission-icon { font-size: 1.5rem; min-width: 36px; text-align: center; }
.mission-info { flex: 1; min-width: 0; }
.mission-title { font-weight: 600; font-size: 0.9rem; }
.mission-desc  { font-size: 0.78rem; color: var(--c-muted); }
.mission-xp    { font-family: var(--font-mono); color: var(--c-xp); font-size: 0.8rem; flex-shrink: 0; }

/* =============================================================================
   Util-Klassen
   ============================================================================= */
.text-primary   { color: var(--c-primary)   !important; }
.text-secondary { color: var(--c-secondary) !important; }
.text-warning   { color: var(--c-warning)   !important; }
.text-danger    { color: var(--c-danger)    !important; }
.text-gold      { color: var(--c-gold)      !important; }
.text-muted     { color: var(--c-muted)     !important; }
.text-xp        { color: var(--c-xp)        !important; }
.text-center    { text-align: center; }
.text-mono      { font-family: var(--font-mono); }

.mt-sm { margin-top: var(--s-sm); }
.mt-md { margin-top: var(--s-md); }
.mt-lg { margin-top: var(--s-lg); }
.mb-md { margin-bottom: var(--s-md); }

.flex          { display: flex; }
.flex-center   { display: flex; align-items: center; justify-content: center; }
.flex-between  { display: flex; align-items: center; justify-content: space-between; }
.flex-gap      { gap: var(--s-md); }
.flex-wrap     { flex-wrap: wrap; }

.w-full        { width: 100%; }
.grid-2        { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-md); }

/* Scan-Line Overlay – subtiles CRT-Feeling */
.scanlines::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* =============================================================================
   Login-Screen
   ============================================================================= */
.login-screen {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s-md);
}

.login-box {
  background: var(--c-panel);
  border: 1px solid var(--c-primary);
  border-radius: var(--r-lg);
  padding: var(--s-xl);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--glow-primary), 0 20px 60px rgba(0,0,0,0.5);
}

.login-logo {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--c-primary);
  text-shadow: var(--glow-primary);
  margin-bottom: var(--s-lg);
  letter-spacing: 0.3em;
}

.form-group {
  margin-bottom: var(--s-md);
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-sm);
  color: var(--c-text);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(0,230,118,0.15);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* =============================================================================
   Loading Spinner
   ============================================================================= */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--c-border);
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: var(--s-xl) auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* =============================================================================
   Modal / Overlay
   ============================================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  z-index: 2000;
  padding: var(--s-md);
  overflow-y: auto;
  animation: viewFadeIn 0.2s ease;
  backdrop-filter: blur(4px);
}

.modal-box {
  background: var(--c-panel);
  border: 1px solid var(--c-primary);
  border-radius: var(--r-lg);
  padding: var(--s-xl);
  max-width: 480px;
  width: 100%;
  margin: auto;
  box-shadow: var(--glow-primary), 0 20px 60px rgba(0,0,0,0.7);
  animation: modalSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.announcement-modal-box {
  max-width: 760px;
}

.announcement-modal-head {
  margin-bottom: 18px;
}

.announcement-modal-head h2 {
  margin: 6px 0 8px 0;
}

.announcement-list {
  display: grid;
  gap: 12px;
}

.announcement-item {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.03);
  padding: 14px 16px;
}

.announcement-item-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 8px;
}

.announcement-item h3 {
  margin: 0;
  font-size: 1rem;
}

.announcement-kicker,
.announcement-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.announcement-kicker {
  letter-spacing: 0.12em;
  color: var(--c-warning);
  margin-bottom: 6px;
}

.announcement-meta {
  color: var(--c-muted);
  white-space: nowrap;
}

.announcement-text {
  white-space: pre-line;
  margin-bottom: 12px;
}

.announcement-ack-btn {
  width: 100%;
}

@media (max-width: 640px) {
  .announcement-item-head {
    flex-direction: column;
  }

  .announcement-meta {
    white-space: normal;
  }
}

@keyframes modalSlideIn {
  from { transform: scale(0.85) translateY(20px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}

/* =============================================================================
   Toast Notifications
   ============================================================================= */
#toast-container {
  position: fixed;
  top: 80px;
  right: var(--s-md);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: var(--s-sm);
  pointer-events: none;
}

@media (min-width: 768px) {
  #toast-container { top: 80px; }
}

.toast {
  background: var(--c-panel);
  border-radius: var(--r-md);
  padding: var(--s-md);
  max-width: 300px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  animation: toastIn 0.3s ease;
  pointer-events: all;
  font-size: 0.9rem;
  border-left: 3px solid var(--c-primary);
}

.toast.warning { border-left-color: var(--c-warning); }
.toast.error   { border-left-color: var(--c-danger); }
.toast.gold    { border-left-color: var(--c-gold); box-shadow: var(--glow-gold); }

@keyframes toastIn {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
  to { transform: translateX(120%); opacity: 0; }
}

/* =============================================================================
   Spiele (Sorting, Drag-Drop, Cloze)
   ============================================================================= */
.sorting-item, .draggable-source {
  background: var(--c-panel);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-sm);
  padding: var(--s-md);
  cursor: grab;
  user-select: none;
  transition: all var(--t-fast);
  touch-action: none;   /* Wichtig für Touch-Drag */
}

.sorting-item:active, .draggable-source:active { cursor: grabbing; }
.sorting-item.dragging, .draggable-source.dragging {
  opacity: 0.5;
  border-color: var(--c-primary);
  box-shadow: var(--glow-primary);
}

.drop-zone {
  min-height: 60px;
  border: 2px dashed var(--c-border);
  border-radius: var(--r-sm);
  padding: var(--s-md);
  transition: all var(--t-fast);
}

.drop-zone.drag-over { border-color: var(--c-primary); background: rgba(0,230,118,0.05); }
.drop-zone.correct   { border-color: var(--c-primary); background: rgba(0,230,118,0.1); }
.drop-zone.wrong     { border-color: var(--c-danger);  background: rgba(255,23,68,0.1); }

.cloze-input {
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--c-primary);
  color: var(--c-text);
  width: 100px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 2px 4px;
  outline: none;
  transition: border-color var(--t-fast);
}

.cloze-input:focus { border-bottom-color: var(--c-secondary); }
.cloze-input.correct { border-bottom-color: var(--c-primary); color: var(--c-primary); }
.cloze-input.wrong   { border-bottom-color: var(--c-danger);  color: var(--c-danger); }

/* =============================================================================
   Kreuzworträtsel — klassisches Grid-Design
   ============================================================================= */

.cw-layout {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 28px;
    align-items: start;
}
@media (max-width: 760px) {
    .cw-layout { grid-template-columns: 1fr; }
}

/* ── Grid-Container ─────────────────────────────────────────── */
.cw-grid-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-shrink: 0;
    padding-bottom: 4px;
}

.cw-grid {
    display: grid !important;
    gap: 2px;
    width: fit-content;
    background: #222;          /* Hintergrund = "Mörtel" zwischen den Zellen */
    padding: 2px;
    /* KEIN border-radius — klassisches Kreuzwort hat scharfe Kanten */
}

/* Einzelne Zelle — exakt quadratisch, KEINE runden Ecken */
.cw-cell {
    position: relative;
    width: 28px; height: 28px;    /* kleiner als vorher */
    background: var(--c-surface);
    border: none;                  /* kein eigener Rahmen — das Gap macht den Abstand */
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}
@media (max-width: 480px) {
    .cw-cell { width: 28px; height: 28px; }
}

/* Schwarze/leere Zelle */
.cw-cell.cw-black {
    background: #111;
}

/* Aktiv / hervorgehoben */
.cw-cell.cw-active    { background: rgba(0,230,118,0.25); }
.cw-cell.cw-highlight { background: rgba(0,230,118,0.10); }

/* Zellnummer (oben links, sehr klein) */
.cw-num {
    position: absolute;
    top: 1px; left: 2px;
    font-size: 0.42rem;
    line-height: 1;
    color: var(--c-muted);
    font-family: var(--font-mono);
    pointer-events: none;
    user-select: none;
}

/* Eingabefeld — füllt die Zelle komplett aus, KEINE runden Ecken */
.cw-input {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    background: transparent;
    border: none;
    outline: none;
    -webkit-appearance: none;      /* iOS entfernt Standard-Styling */
    appearance: none;
    border-radius: 0 !important;   /* KEIN border-radius unter keinen Umständen */
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
    caret-color: transparent;      /* kein Cursor-Blinkern */
    padding: 8px 0 0 0;            /* Platz für Zellnummer */
    box-sizing: border-box;
    cursor: pointer;
    line-height: 1;
}
@media (max-width: 480px) {
    .cw-input { font-size: 16px; padding-top: 8px; }
}

.cw-input:focus {
    background: rgba(0,230,118,0.15);
    outline: none;
    box-shadow: none;
}

.cw-input.correct  { color: var(--c-primary); background: rgba(0,230,118,0.08); }
.cw-input.wrong    { color: var(--c-danger);  background: rgba(255,23,68,0.12); }
.cw-input.revealed { color: var(--c-muted);   font-style: italic; }

/* ── Aktionsbuttons ─────────────────────────────────────────── */
.cw-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.cw-active-clue {
    background: linear-gradient(180deg, rgba(0,230,118,0.08), rgba(0,230,118,0.03));
    border: 1px solid rgba(0,230,118,0.24);
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 14px;
}

.cw-active-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--c-muted);
    margin-bottom: 4px;
}

.cw-active-title {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--c-primary);
    margin-bottom: 4px;
}

.cw-active-text {
    font-size: 0.88rem;
    color: var(--c-text);
    line-height: 1.45;
}

.cw-active-meta {
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    color: var(--c-muted);
    font-size: 0.76rem;
}

/* ── Hinweisliste rechts ────────────────────────────────────── */
.cw-clues {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 8px;
    padding: 0;
    overflow-y: auto;
    max-height: 600px;
    min-width: 240px;
}
@media (max-width: 760px) {
    .cw-clues { max-height: none; }
    .cw-active-clue {
        position: sticky;
        top: max(12px, env(safe-area-inset-top));
        z-index: 4;
    }
    .cw-active-meta {
        flex-wrap: wrap;
    }
    .cw-active-meta .btn {
        width: auto;
    }
}

.cw-clue-section { padding: 12px 0 8px; }
.cw-clue-section + .cw-clue-section { border-top: 1px solid var(--c-border); }

.cw-clue-header {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 0 16px 8px;
}

.cw-clue-item {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 5px 16px;
    font-size: 0.83rem;
    cursor: pointer;
    line-height: 1.4;
    transition: background 0.12s;
    color: var(--c-muted);
}
.cw-clue-item::before {
    content: "•";
    color: var(--c-muted);
    flex-shrink: 0;
}
.cw-clue-item:hover  { background: rgba(255,255,255,0.04); color: var(--c-text); }
.cw-clue-item.active { background: rgba(0,230,118,0.08); color: var(--c-primary); }
.cw-clue-item.active::before { color: var(--c-primary); }
.cw-clue-item.solved { color: var(--c-primary); opacity: 0.6; }

.cw-clue-num {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--c-text);
    min-width: 18px;
    flex-shrink: 0;
}
.cw-clue-item.active .cw-clue-num { color: var(--c-primary); }

#cw-feedback {
    margin-top: 8px;
    min-height: 20px;
    font-size: 0.82rem;
    font-family: var(--font-mono);
}


/* ════════════════════════════════════════════════════════════════
   TIMELINE — Militärhistorische Zeitleiste (CSS Grid, robust)
   ════════════════════════════════════════════════════════════════ */

.tl-page-header { padding-bottom: 16px; }
.tl-subtitle { color: var(--c-muted); font-size: 0.82rem; margin-top: 4px; }

.tl-progress-bar {
  height: 4px; background: var(--c-border);
  border-radius: 2px; overflow: hidden; margin-top: 8px;
}
.tl-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c-primary), var(--c-xp));
  border-radius: 2px; transition: width 0.5s ease; width: 0%;
}

/* ── Wrapper ─────────────────────────────────────────────────── */
.tl-wrapper { position: relative; padding-bottom: 40px; }

.tl-spine {
  display: none; /* Wird nur auf Desktop via Media Query gezeigt */
}

.tl-events { }

/* ── Ären-Trenner ────────────────────────────────────────────── */
.tl-era-header {
  display: flex; align-items: center; gap: 10px;
  margin: 32px 0 14px;
}
.tl-era-line { flex: 1; height: 1px; }
.tl-era-badge {
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 4px 12px; border: 1px solid; border-radius: 20px;
  white-space: nowrap; flex-shrink: 0;
}

/* ── Ereignis-Element (Mobile: einfache Liste) ───────────────── */
.tl-event {
  display: block;
  margin-bottom: 12px;
  cursor: pointer;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.tl-event.tl-visible { opacity: 1; transform: translateY(0); }
.tl-dot { display: none; } /* Mobile: kein Dot */

/* Karte */
.tl-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--accent, var(--c-primary));
  border-radius: 8px;
  padding: 12px 15px;
  transition: background 0.2s, transform 0.15s;
}
.tl-event:hover .tl-card,
.tl-event:active .tl-card { background: rgba(255,255,255,0.04); transform: translateX(3px); }

.tl-card-year {
  font-family: var(--font-mono); font-size: 0.72rem;
  font-weight: 700; margin-bottom: 2px; letter-spacing: 0.02em;
}
.tl-card-title {
  font-weight: 700; font-size: 0.92rem;
  color: var(--c-text); margin-bottom: 4px; line-height: 1.3;
}
.tl-card-fact {
  font-size: 0.78rem; color: var(--c-muted); line-height: 1.45; margin-bottom: 5px;
}
.tl-card-cta {
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--c-secondary); opacity: 0.8;
}
.tl-event:hover .tl-card-cta { opacity: 1; }

/* Gesehen-Markierung */
.tl-card.tl-seen {
  border-left-color: var(--c-primary) !important;
  background: rgba(0,230,118,0.04);
}
.tl-card.tl-seen .tl-card-cta::before { content: "✓ "; color: var(--c-primary); }

/* ── Desktop: Vertikale Mittelachse ──────────────────────────── */
@media (min-width: 700px) {

  .tl-wrapper { padding-left: 0; padding-right: 0; }

  .tl-spine {
    display: block;
    position: absolute; left: 50%; top: 0; bottom: 0; width: 2px;
    background: linear-gradient(to bottom, transparent, var(--c-border) 5%, var(--c-border) 95%, transparent);
    transform: translateX(-50%); z-index: 0;
  }
  .tl-events { position: relative; z-index: 1; }

  /* Ären-Trenner Desktop: immer über die volle Breite */
  .tl-era-header { margin: 36px 0 18px; }

  /* Event Desktop: Flex-Layout mit Dot auf Mittelachse */
  .tl-event {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    position: relative;
  }

  .tl-dot {
    display: block;
    width: 14px; height: 14px; border-radius: 50%;
    border: 2px solid var(--c-bg); flex-shrink: 0;
    position: absolute; left: calc(50% - 7px);
    z-index: 3; transition: transform 0.2s;
  }
  .tl-event:hover .tl-dot { transform: scale(1.5); }

  /* Links: Karte auf linker Seite der Achse */
  .tl-event.tl-left {
    flex-direction: row;
    padding-right: calc(50% + 22px);
    padding-left: 0;
  }
  .tl-event.tl-left .tl-card {
    width: 100%;
    text-align: right;
    border-left: 1px solid var(--c-border);
    border-right: 3px solid var(--accent, var(--c-primary));
  }
  .tl-event.tl-left .tl-card-cta { text-align: right; }
  .tl-event.tl-left:hover .tl-card { transform: translateX(-3px); }

  /* Rechts: Karte auf rechter Seite der Achse */
  .tl-event.tl-right {
    flex-direction: row;
    padding-left: calc(50% + 22px);
    padding-right: 0;
  }
  .tl-event.tl-right .tl-card {
    width: 100%;
    text-align: left;
    border-left: 3px solid var(--accent, var(--c-primary));
    border-right: 1px solid var(--c-border);
  }
  .tl-event.tl-right:hover .tl-card { transform: translateX(3px); }
}

/* ── Modal ───────────────────────────────────────────────────── */
.tl-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.72);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  /* iOS Safe Area */
  padding-top: max(20px, env(safe-area-inset-top));
  padding-bottom: max(20px, env(safe-area-inset-bottom));
}
.tl-modal-box {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: 12px; padding: 24px 24px 20px;
  max-width: 540px; width: 100%;
  max-height: 80vh; overflow-y: auto; position: relative;
}
.tl-modal-close {
  position: absolute; top: 12px; right: 12px;
  background: none; border: 1px solid var(--c-border);
  color: var(--c-muted); width: 30px; height: 30px;
  border-radius: 50%; cursor: pointer; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.tl-modal-close:hover { color: var(--c-text); border-color: var(--c-text); }
.tl-modal-year {
  font-family: var(--font-mono); font-size: 0.78rem;
  font-weight: 700; margin-bottom: 4px;
}
.tl-modal-title {
  font-size: 1.1rem; font-weight: 700; margin: 0 0 14px; padding-right: 24px;
}
.tl-modal-points {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.tl-modal-points li {
  font-size: 0.875rem; color: var(--c-muted);
  line-height: 1.6; padding-left: 18px; position: relative;
}
.tl-modal-points li::before {
  content: "›"; position: absolute; left: 0;
  color: var(--c-secondary); font-weight: 700;
}
.tl-modal-xp {
  margin-top: 16px; padding-top: 12px;
  border-top: 1px solid var(--c-border);
  font-family: var(--font-mono); font-size: 0.8rem;
}

/* ════════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════════ */

/* ── Mobile ≤ 600px ──────────────────────────────────────────── */
@media (max-width: 600px) {
  #main-nav .nav-logo { font-size: 0.82rem; }
  .nav-btn .label { font-size: 0.6rem; }
  #app {
    padding: max(12px, env(safe-area-inset-top)) 12px 12px;
  }
  .module-grid { grid-template-columns: 1fr !important; }
  .unit-list    { grid-template-columns: 1fr !important; }
  .flashcard    { min-height: 180px; }
  .stat-grid    { grid-template-columns: 1fr 1fr !important; }
  .leaderboard-item { padding: 10px 12px; }
  .lb-avatar    { display: none; }
  .lb-xp        { font-size: 0.8rem; }

  /* Timeline Mobile: alles linksbündig */
  .tl-spine { left: 14px; }
  .tl-era-badge { font-size: 0.62rem; padding: 3px 8px; }

  .tl-event.tl-left,
  .tl-event.tl-right {
    position: relative;
    flex-direction: row;
    padding-left: 32px;
    padding-right: 0;
  }
  .tl-event.tl-left .tl-dot,
  .tl-event.tl-right .tl-dot {
    position: absolute; left: 7px; top: 14px; margin: 0;
    order: 1;
  }
  .tl-event.tl-left .tl-card,
  .tl-event.tl-right .tl-card {
    order: 2; text-align: left; margin: 0;
    max-width: 100%;
    border-left: 3px solid var(--accent, var(--c-primary)) !important;
    border-right: 1px solid var(--c-border) !important;
    border-radius: 6px;
  }
  .tl-event.tl-left .tl-card.tl-seen::after  { left: auto; right: 8px; }
  .tl-modal-box { padding: 18px 14px; }
  .tl-modal-title { font-size: 1rem; }
}

/* ── Tablet 601–900px ────────────────────────────────────────── */
@media (min-width: 601px) and (max-width: 900px) {
  .module-grid { grid-template-columns: 1fr 1fr !important; }
  .stat-grid   { grid-template-columns: repeat(2, 1fr) !important; }
  .tl-card     { max-width: 270px; }
  .tl-event.tl-left  { padding-right: calc(50% + 16px); }
  .tl-event.tl-right { padding-left:  calc(50% + 16px); }
}

/* ── Desktop > 1200px ────────────────────────────────────────── */
@media (min-width: 1200px) {
  #app         { max-width: 1100px; margin: 0 auto; }
  .module-grid { grid-template-columns: repeat(3, 1fr) !important; }
  .stat-grid   { grid-template-columns: repeat(4, 1fr) !important; }
  .tl-card     { max-width: 420px; }
}