/* ==========================================================================
   erz.biz Design Tokens
   Single source of truth. Alle CSS-Custom-Properties.
   Gesetzt von /js/mood.js zur Laufzeit — hier nur Fallback-Defaults.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Brand-Konstanten (unveränderlich)
   -------------------------------------------------------------------------- */
:root {
  --brand-champagne:     #c79b58;
  --brand-champagne-lt:  #d4af6f;
  --brand-champagne-dk:  #b8853d;
  --brand-ink:           #0a0a0a;
  --brand-ink-soft:      #171717;

  /* Foto-basierter Akzent — wird von palette.js überschrieben */
  --accent-living: #c79b58;

  /* Transition-Dauer für Living-Palette */
  --palette-transition: 600ms ease;
}

/* --------------------------------------------------------------------------
   2. Theme-Tokens: Dark (Default)
   Werden von mood.js auf <html data-theme="dark"> gesetzt.
   -------------------------------------------------------------------------- */
:root,
[data-theme="dark"] {
  --bg-base:         #0a0a0a;
  --bg-soft:         #111111;
  --bg-card:         rgba(255,255,255,0.04);
  --bg-card-hover:   rgba(255,255,255,0.07);
  --bg-overlay:      rgba(10,10,10,0.80);
  --border-subtle:   rgba(255,255,255,0.08);
  --border-soft:     rgba(255,255,255,0.12);

  --text-primary:    #fafafa;
  --text-secondary:  #a3a3a3;
  --text-muted:      #525252;
  --text-accent:     var(--accent-living);

  --glass-bg:        rgba(255,255,255,0.04);
  --glass-border:    rgba(255,255,255,0.08);
  --glass-blur:      12px;

  /* Schatten im Dunkeln: warm-getönt, nicht reines Schwarz */
  --shadow-card:     0 4px 24px rgba(0,0,0,0.5), 0 1px 4px rgba(0,0,0,0.3);
  --shadow-float:    0 16px 48px rgba(0,0,0,0.6), 0 2px 8px rgba(0,0,0,0.4);

  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   3. Theme-Tokens: Light
   -------------------------------------------------------------------------- */
[data-theme="light"] {
  --bg-base:         #f5f0ea;
  --bg-soft:         #ede8e1;
  --bg-card:         rgba(255,255,255,0.72);
  --bg-card-hover:   rgba(255,255,255,0.90);
  --bg-overlay:      rgba(245,240,234,0.85);
  --border-subtle:   rgba(0,0,0,0.07);
  --border-soft:     rgba(0,0,0,0.12);

  --text-primary:    #1a1612;
  --text-secondary:  #6b6055;
  --text-muted:      #a09585;
  --text-accent:     var(--accent-living);

  --glass-bg:        rgba(255,255,255,0.72);
  --glass-border:    rgba(0,0,0,0.08);
  --glass-blur:      16px;

  --shadow-card:     0 4px 24px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-float:    0 16px 48px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);

  color-scheme: light;
}

/* --------------------------------------------------------------------------
   4. Daypart-Tönung: 4 Phasen × 2 Themes
   mood.js setzt [data-daypart="morning|day|evening|night"] auf <html>
   -------------------------------------------------------------------------- */

/* Morgen: kühl-cremig (Light) / tiefblau-grau (Dark) */
[data-theme="light"][data-daypart="morning"] {
  --bg-base:  #f0ede8;
  --bg-soft:  #e8e3dc;
  --bg-tint:  rgba(200,210,220,0.15);
}
[data-theme="dark"][data-daypart="morning"] {
  --bg-base:  #0d1117;
  --bg-soft:  #111820;
  --bg-tint:  rgba(100,140,180,0.06);
}

/* Tag: klar, neutral */
[data-theme="light"][data-daypart="day"] {
  --bg-base:  #f5f0ea;
  --bg-soft:  #ede8e1;
  --bg-tint:  rgba(255,255,255,0);
}
[data-theme="dark"][data-daypart="day"] {
  --bg-base:  #0a0a0a;
  --bg-soft:  #111111;
  --bg-tint:  rgba(255,255,255,0);
}

/* Abend: warm-champagner (Light) / burgund-tief (Dark) */
[data-theme="light"][data-daypart="evening"] {
  --bg-base:  #f2ebe0;
  --bg-soft:  #ece2d2;
  --bg-tint:  rgba(199,155,88,0.07);
}
[data-theme="dark"][data-daypart="evening"] {
  --bg-base:  #0f0a07;
  --bg-soft:  #160d09;
  --bg-tint:  rgba(160,60,40,0.06);
}

/* Nacht: tief-beruhigt (Dark-only eigentlich) */
[data-theme="light"][data-daypart="night"] {
  --bg-base:  #ede8e2;
  --bg-soft:  #e5e0da;
  --bg-tint:  rgba(80,80,100,0.06);
}
[data-theme="dark"][data-daypart="night"] {
  --bg-base:  #080810;
  --bg-soft:  #0c0c18;
  --bg-tint:  rgba(30,30,80,0.08);
}

/* --------------------------------------------------------------------------
   5. Mood-Tokens: 4 Moods
   mood.js setzt [data-mood="traeumen|sofort|entspannen|entdecken"] auf <html>
   -------------------------------------------------------------------------- */

/* Default: Entspannen — luftig, ruhig */
:root,
[data-mood="entspannen"] {
  --mood-tempo:              400ms;
  --mood-tempo-fast:         250ms;
  --mood-spacing-mult:       1;
  --mood-headline-weight:    300;
  --mood-headline-style:     normal;
  --mood-leading:            1.35;
  --mood-card-scale:         1.02;
  --mood-letter-spacing:     0em;
}

/* Träumen — verträumt, sanft, italic */
[data-mood="traeumen"] {
  --mood-tempo:              700ms;
  --mood-tempo-fast:         450ms;
  --mood-spacing-mult:       1.1;
  --mood-headline-weight:    300;
  --mood-headline-style:     italic;
  --mood-leading:            1.45;
  --mood-card-scale:         1.015;
  --mood-letter-spacing:     0.01em;
}

/* Sofort weg — high-energy, kompakt, bold */
[data-mood="sofort"] {
  --mood-tempo:              180ms;
  --mood-tempo-fast:         100ms;
  --mood-spacing-mult:       0.9;
  --mood-headline-weight:    700;
  --mood-headline-style:     normal;
  --mood-leading:            1.2;
  --mood-card-scale:         1.03;
  --mood-letter-spacing:     -0.01em;
}

/* Entdecken — cinematisch, groß, kontrastreich */
[data-mood="entdecken"] {
  --mood-tempo:              350ms;
  --mood-tempo-fast:         200ms;
  --mood-spacing-mult:       1.05;
  --mood-headline-weight:    600;
  --mood-headline-style:     normal;
  --mood-leading:            1.25;
  --mood-card-scale:         1.025;
  --mood-letter-spacing:     -0.02em;
}

/* --------------------------------------------------------------------------
   6. Globale Basis-Styles
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background-color: var(--bg-base);
  color: var(--text-primary);
  transition:
    background-color var(--mood-tempo, 400ms) ease,
    color var(--mood-tempo, 400ms) ease;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100svh;
}

/* Glassmorphism — nutzt Tokens */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

/* Karten-Transitions */
.erz-card {
  transition:
    background var(--mood-tempo, 400ms) ease,
    border-color var(--mood-tempo, 400ms) ease,
    box-shadow var(--mood-tempo, 400ms) ease,
    transform var(--mood-tempo-fast, 250ms) ease;
}
.erz-card:hover {
  background: var(--bg-card-hover);
  transform: scale(var(--mood-card-scale, 1.02));
  box-shadow: var(--shadow-float);
}

/* Accent-Color — nutzt Living Palette */
.accent-text  { color: var(--accent-living); }
.accent-bg    { background-color: var(--accent-living); }
.accent-border{ border-color: var(--accent-living); }

/* Living-Palette Transition */
.accent-text,
.accent-bg,
.accent-border {
  transition:
    color var(--palette-transition),
    background-color var(--palette-transition),
    border-color var(--palette-transition);
}

/* Headline-Mood */
.mood-headline {
  font-weight: var(--mood-headline-weight, 300);
  font-style:  var(--mood-headline-style, normal);
  line-height: var(--mood-leading, 1.35);
  letter-spacing: var(--mood-letter-spacing, 0em);
  transition:
    font-weight var(--mood-tempo, 400ms) ease,
    font-style  var(--mood-tempo, 400ms) ease,
    line-height var(--mood-tempo, 400ms) ease;
}

/* Discount-Badge */
.erz-badge {
  background-color: var(--accent-living);
  color: var(--brand-ink);
  transition: background-color var(--palette-transition);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  white-space: nowrap;
}

/* Stars */
.erz-stars {
  color: var(--accent-living);
  transition: color var(--palette-transition);
}

/* Theme-Toggle-Button */
.theme-toggle {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 200ms ease;
  font-size: 0.875rem;
  line-height: 1;
}
.theme-toggle:hover {
  border-color: var(--border-soft);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

/* Mood-Pill in Header */
.mood-pill {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 200ms ease;
}
.mood-pill:hover {
  border-color: var(--accent-living);
  color: var(--accent-living);
}

/* Mood-Popover (Header-Pill oeffnet Menu mit 4 Optionen) */
.site-header-actions { position: relative; }

.mood-popover {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 11rem;
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border-soft);
  border-radius: 0.875rem;
  padding: 0.375rem;
  box-shadow: var(--shadow-float);
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 180ms ease, transform 180ms ease;
  z-index: 20;
}
.mood-popover.open { opacity: 1; transform: translateY(0); }

.mood-popover-item {
  background: transparent;
  border: none;
  padding: 0.625rem 1rem;
  text-align: left;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  cursor: pointer;
  border-radius: 0.625rem;
  transition: background 160ms ease, color 160ms ease;
}
.mood-popover-item:hover { background: var(--bg-card-hover); }
.mood-popover-item[aria-current="true"] {
  color: var(--accent-living);
  background: var(--bg-card-hover);
  font-weight: 600;
}

/* Mood-Selector-Block (inline auf index.html) */
.mood-selector {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.mood-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition:
    border-color var(--mood-tempo-fast, 250ms) ease,
    color var(--mood-tempo-fast, 250ms) ease,
    background var(--mood-tempo-fast, 250ms) ease;
}
.mood-btn:hover {
  border-color: var(--accent-living);
  color: var(--text-primary);
}
.mood-btn[aria-pressed="true"] {
  border-color: var(--accent-living);
  background: var(--accent-living);
  color: var(--brand-ink);
}

/* --------------------------------------------------------------------------
   7. Filter-Chip + Filter-Popover
   Wiederverwendbare Komponenten für Feed-Filter. Gleiche Sprache wie .mood-pill
   und .mood-popover, damit das System kohärent bleibt.
   -------------------------------------------------------------------------- */

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  padding: 0.4375rem 0.9375rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    border-color var(--mood-tempo-fast, 250ms) ease,
    color var(--mood-tempo-fast, 250ms) ease,
    background var(--mood-tempo-fast, 250ms) ease;
  white-space: nowrap;
}
.filter-chip:hover {
  border-color: var(--border-soft);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.filter-chip.is-active,
.filter-chip[aria-pressed="true"] {
  border-color: var(--accent-living);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.filter-chip .chip-caret {
  font-size: 0.625rem;
  opacity: 0.55;
  transition: transform 200ms ease;
}
.filter-chip[aria-expanded="true"] .chip-caret { transform: rotate(180deg); }
.filter-chip .chip-count {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent-living);
  padding: 0.0625rem 0.4375rem;
  border-radius: 999px;
  border: 1px solid var(--accent-living);
  line-height: 1.25;
  transition: color var(--palette-transition), border-color var(--palette-transition);
}

.filter-reset {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  letter-spacing: 0.04em;
  transition: color 200ms ease;
}
.filter-reset:hover { color: var(--accent-living); }

.filter-popover {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 14rem;
  max-width: min(22rem, calc(100vw - 2rem));
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border-soft);
  border-radius: 0.875rem;
  padding: 0.5rem;
  box-shadow: var(--shadow-float);
  display: flex;
  flex-direction: column;
  gap: 0.0625rem;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 180ms ease, transform 180ms ease;
  z-index: 30;
}
.filter-popover.open { opacity: 1; transform: translateY(0); }
.filter-popover-title {
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.375rem 0.75rem 0.5rem;
}

.filter-option {
  background: transparent;
  border: none;
  padding: 0.5625rem 0.875rem;
  text-align: left;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  cursor: pointer;
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  transition: background 160ms ease, color 160ms ease;
}
.filter-option:hover:not([disabled]) { background: var(--bg-card-hover); }
.filter-option[aria-pressed="true"],
.filter-option[aria-current="true"] {
  color: var(--accent-living);
  background: var(--bg-card-hover);
  font-weight: 600;
}
.filter-option[disabled] {
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.5;
}
.filter-option .opt-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}
.filter-option[aria-pressed="true"] .opt-meta,
.filter-option[aria-current="true"] .opt-meta { color: var(--accent-living); }

/* Filter-Bar Layout — verwendet von feed.html + fluege.html */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.filter-chip-wrap {
  position: relative;
}
.filter-bar-tail {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.filter-result-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}
.filter-result-count .num {
  color: var(--accent-living);
  font-weight: 600;
  font-size: 0.8125rem;
  margin-right: 0.3125rem;
  transition: color var(--palette-transition);
}
.filter-result-count .noun {
  font-style: var(--mood-headline-style, normal);
  transition: font-style var(--mood-tempo, 400ms) ease;
}
@media (max-width: 520px) {
  .filter-bar-tail {
    width: 100%;
    margin-left: 0;
    justify-content: space-between;
    padding-top: 0.25rem;
  }
}

/* --------------------------------------------------------------------------
   8. Top-Nav-Primary + Hotels-Sub-Nav
   Gemeinsame Komponenten fuer die neu strukturierte Navigation (Session 17).
   Top-Nav = 3 Tabs (Frag prominent, Hotels, Flüge).
   Sub-Nav = 3 Browse-Modi unter dem Hero auf hotel-relevanten Pages.
   -------------------------------------------------------------------------- */

/* "Frag" wird visuell hervorgehoben — der primaere Einstieg in die AI-Suche. */
.nav-tab.is-primary {
  background: var(--bg-card);
  border: 1px solid var(--accent-living);
  color: var(--accent-living);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition:
    color var(--palette-transition),
    border-color var(--palette-transition),
    background 180ms ease;
}
.nav-tab.is-primary:hover {
  background: var(--accent-living);
  color: var(--brand-ink);
}
.nav-tab.is-primary::before {
  content: "✦";
  margin-right: 0.375rem;
  font-size: 0.6875rem;
  display: inline-block;
  transform: translateY(-1px);
}

/* Hotels-Sub-Nav — sitzt direkt unter dem Hero auf hotel-relevanten Pages. */
.sub-nav {
  display: flex;
  gap: 0.375rem;
  align-items: center;
  padding: 0.5rem 0 1.25rem;
  flex-wrap: wrap;
}
.sub-nav-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-right: 0.375rem;
}
.sub-nav a {
  font-size: 0.8125rem;
  padding: 0.3125rem 0.75rem;
  border-radius: 999px;
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  background: transparent;
  transition: background 180ms, color 180ms, border-color 180ms;
}
.sub-nav a:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
  border-color: var(--border-soft);
}
.sub-nav a.active {
  color: var(--accent-living);
  border-color: var(--accent-living);
  background: var(--bg-card);
}
@media (max-width: 480px) {
  .sub-nav { gap: 0.25rem; padding-top: 0.25rem; }
  .sub-nav-label { width: 100%; }
}

/* Scrollbar — dezent */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-soft); border-radius: 2px; }
