/* App-Huelle: Seitenleiste links (Notion-artig) auf breiten Bildschirmen,
   untere Tab-Leiste auf Handy/iPad-Hochformat (Roadmap Abschnitt 16). */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

button, input, textarea, select {
  font-family: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

/* ---------- Seitenleiste ---------- */
.sidebar {
  background: var(--sidebar-bg);
  border-right: 1px solid var(--line);
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sidebar-brand {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  padding: var(--space-2) var(--space-3) var(--space-4);
  color: var(--ink);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.94rem;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-item:hover { background: var(--row-soft); }
.nav-item.active {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 12px -4px var(--accent-soft);
}

.nav-item.disabled {
  opacity: 0.45;
  cursor: default;
}
.nav-item.disabled:hover { background: transparent; }
.nav-item .badge-neu {
  margin-left: auto;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted-2);
}

.nav-icon { width: 20px; text-align: center; flex: 0 0 auto; }

.sidebar-footer {
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
}

/* ---------- Hauptbereich ---------- */
.main {
  min-width: 0;
  padding: var(--space-6) var(--space-5) 100px;
}

.main-inner { max-width: 1080px; margin: 0 auto; }

.view { display: none; }
.view.active { display: block; }

.view-empty {
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  color: var(--muted);
}
.view-empty .btn { margin-top: var(--space-3); }

/* ---------- Untere Tab-Leiste (mobil) ---------- */
.tabbar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--sidebar-bg);
  border-top: 1px solid var(--line);
  padding: var(--space-2) var(--space-2) calc(var(--space-2) + env(safe-area-inset-bottom));
  justify-content: space-around;
  z-index: 20;
}
.tabbar .nav-item {
  flex-direction: column;
  gap: 2px;
  font-size: 0.68rem;
  padding: var(--space-1) var(--space-2);
  width: auto;
  text-align: center;
  position: relative;
}
/* Im Fusion-Mockup hat die untere Tab-Leiste keine Pille, nur einen
   kleinen Punkt unter dem aktiven Tab -- dezenter als in der Seitenleiste. */
.tabbar .nav-item.active {
  background: transparent;
  color: var(--accent);
  box-shadow: none;
  font-weight: 700;
}
.tabbar .nav-item.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

@media (max-width: 780px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .tabbar { display: flex; }
  .main { padding: var(--space-4) var(--space-3) 88px; }
}

/* ---------- Karten (Fusion E: weiche, grosszuegige Cards) ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.card h2 { font-size: 1.05rem; margin: 0 0 var(--space-1); display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); }
.card .card-sub { font-size: 0.85rem; color: var(--muted); margin-bottom: var(--space-4); }

/* Hero-Karte: Fusion E's Gradient-Header-Behandlung, hier fuer die
   wichtigste Kachel (naechste Pruefung/Countdown) wiederverwendet. */
.card-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(150deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  box-shadow: var(--shadow-hero);
  border: none;
}
.card-hero::before {
  content: "";
  position: absolute;
  top: -60px; right: -60px;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}
.card-hero .card-sub { color: rgba(255, 255, 255, 0.78); }
.card-hero h2 { color: #fff; }

/* Zahlen/Countdown im Fusion-Stil: Space Mono statt normaler Schrift */
.stat-num { font-family: var(--font-mono); font-weight: 700; }

/* Grosse Countdown-Zahl in der Hero-Karte, wie im Fusion-Mockup */
.hero-countdown { display: flex; align-items: baseline; gap: 10px; margin: 6px 0 2px; }
.hero-countdown-num { font-family: var(--font-mono); font-weight: 700; font-size: 2.8rem; line-height: 1; }
.hero-countdown-label { font-size: 1rem; color: rgba(255, 255, 255, 0.8); font-weight: 600; }

.grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--space-4); margin-top: var(--space-4); }
@media (max-width: 820px) { .grid { grid-template-columns: 1fr; } }
.span-full { grid-column: 1 / -1; }

.btn {
  background: linear-gradient(180deg, var(--accent-light) 0%, var(--accent) 100%);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 10px 18px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--accent-dark), 0 10px 18px -10px var(--accent-soft);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.btn:hover { filter: brightness(1.05); }
.btn:active { transform: translateY(2px); box-shadow: 0 2px 0 var(--accent-dark), 0 6px 12px -8px var(--accent-soft); }
.btn:disabled { background: var(--muted-2); box-shadow: none; cursor: default; }
.btn-ghost {
  background: transparent;
  border: 1.5px solid var(--line);
  color: var(--ink);
  border-radius: var(--radius-md);
  padding: 9px 16px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
}
.btn-ghost:hover { background: var(--row-soft); }

/* ---------- Zeilen-Listen im Fusion-Stil (statt Trennlinien: weiche,
   abgerundete Reihen auf leicht getoentem Hintergrund) ---------- */
.row-soft {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--row-soft);
  margin-bottom: 6px;
}
.row-soft:last-child { margin-bottom: 0; }

/* ---------- Sync-Status-Zeile (Ausfall-Verhalten, Abschnitt 16) ---------- */
.sync-status { font-size: 0.78rem; margin-top: var(--space-2); }
.sync-status.sync-ok { color: var(--muted-2); }
.sync-status.sync-fehler { color: var(--warn); }
.sync-status.sync-laedt { color: var(--muted-2); font-style: italic; }

/* ---------- Onboarding-Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: center; z-index: 50;
  padding: var(--space-4);
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--bg-elevated);
  color: var(--ink);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: var(--space-5);
  box-shadow: var(--shadow-md);
}
.modal h2 { margin-top: 0; }
.modal-steps { display: flex; gap: 6px; margin-bottom: var(--space-4); }
.modal-steps .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.modal-steps .dot.done { background: var(--accent); }
.modal-actions { display: flex; justify-content: space-between; margin-top: var(--space-5); gap: var(--space-3); }

.option-list { display: flex; flex-direction: column; gap: var(--space-2); margin: var(--space-3) 0; }
.option-btn {
  text-align: left;
  border: 1.5px solid var(--line);
  background: transparent;
  color: var(--ink);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  cursor: pointer;
  font-size: 0.92rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.option-btn.selected { border-color: var(--accent); background: var(--accent-soft); font-weight: 700; }

.stundenplan-grid {
  display: grid;
  grid-template-columns: 60px repeat(5, 1fr);
  gap: 4px;
  font-size: 0.78rem;
  max-height: 260px;
  overflow-y: auto;
}
.stundenplan-grid .kopf { font-weight: 700; text-align: center; padding: 4px; color: var(--muted); }
.stundenplan-grid input {
  width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 4px;
  font-size: 0.76rem; background: var(--bg-elevated); color: var(--ink);
}

/* ---------- Eigener Kalender (Abschnitt 8) ---------- */
.kalender-kopfzeile { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-4); flex-wrap: wrap; }
.kalender-monatslabel { font-size: 1.15rem; font-weight: 700; }
.kalender-nav { display: flex; gap: var(--space-2); }
.kalender-monat-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.kalender-wochentag { text-align: center; font-size: 0.72rem; font-weight: 700; color: var(--muted); padding: 4px 0; }
.kalender-tag {
  min-height: 78px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow: hidden;
}
.kalender-tag:hover { border-color: var(--accent); }
.kalender-tag.ausserhalb { opacity: 0.35; }
.kalender-tag.heute { border-color: var(--accent); border-width: 2px; }
.kalender-tag .tagnummer { font-size: 0.8rem; font-weight: 700; }
.kalender-eintrag {
  font-size: 0.68rem;
  border-radius: 4px;
  padding: 2px 5px;
  background: var(--accent-soft);
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kalender-eintrag.pruefung { background: var(--danger); color: #fff; font-weight: 700; }
.kalender-eintrag.google { background: var(--row-soft); }
.kalender-mehr { font-size: 0.66rem; color: var(--muted); }

@media (max-width: 640px) {
  .kalender-tag { min-height: 52px; padding: 4px; }
  .kalender-eintrag { display: none; }
  .kalender-tag.hat-eintraege .tagnummer::after { content: "•"; color: var(--accent); margin-left: 4px; }
}

.kalender-liste-tag { padding: var(--space-4) 0; border-bottom: 1px solid var(--line); }
.kalender-liste-tag:last-child { border-bottom: none; }
.kalender-liste-eintrag { display: flex; align-items: center; gap: var(--space-3); padding: 6px 0; }
.kalender-liste-eintrag .punkt { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.kalender-liste-eintrag.pruefung .punkt { background: var(--danger); }

/* ---------- Einstellungen (Design + Akzentfarbe) ---------- */
.settings-popover-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 60;
  padding: 0;
}
.settings-popover-overlay[hidden] { display: none; }
.settings-popover {
  background: var(--bg-elevated);
  color: var(--ink);
  width: 100%;
  max-width: 380px;
  padding: var(--space-5);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow-md);
}
@media (min-width: 781px) {
  .settings-popover-overlay { align-items: center; }
  .settings-popover { border-radius: var(--radius-lg); }
}
.settings-popover-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.settings-popover-head h3 { margin: 0; font-size: 1.02rem; }
.settings-popover-close {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 1.05rem;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
}
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--line);
}
.settings-row:last-child { border-bottom: none; padding-bottom: 0; }
.settings-row-col { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
.settings-row-label { font-size: 0.92rem; font-weight: 700; }

.akzent-dots { display: flex; gap: 12px; }
.akzent-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  padding: 0;
  cursor: pointer;
  position: relative;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}
.akzent-dot.selected { border-color: var(--ink); }
.akzent-dot.selected::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}