/* SuperTitles Meet — aligned with 2026.supertitles.gr */

:root {
  --bg: #1e1e1e;
  --bg-elevated: #2a2a2a;
  --bg-card: #353535;
  --border: rgba(255, 255, 255, 0.12);
  --text: #f0f1f4;
  --text-muted: #b8bcc8;
  --text-subtle: #949aab;
  --text-label: #d4d7e0;
  --accent: #4a9eff;

  /* Align Bootstrap 5 with dark UI (fixes .text-muted, headings, cards) */
  --bs-body-color: var(--text);
  --bs-body-bg: var(--bg);
  --bs-emphasis-color: #fff;
  --bs-secondary-color: var(--text-muted);
  --bs-tertiary-color: var(--text-subtle);
  --bs-heading-color: var(--text);
  --bs-card-color: var(--text);
  --bs-card-bg: var(--bg-elevated);
  --bs-card-cap-color: var(--text-muted);
  --bs-border-color: var(--border);
  --bs-link-color: var(--accent);
  --bs-link-hover-color: var(--accent-hover);
  --accent-hover: #3a8eef;
  --accent-deep: #2b7fd9;
  --accent-soft: rgba(74, 158, 255, 0.15);
  --accent-glow: rgba(74, 158, 255, 0.35);
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.2);
  --busy: #4a4f5c;
  --busy-border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --header-bg: #2c323c;
  --header-border: rgba(74, 158, 255, 0.22);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.text-accent { color: var(--accent) !important; }

.container-xl {
  width: min(100% - 1.5rem, 1200px);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--header-bg) 94%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--header-border);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

.site-header .container-xl {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  padding: 0.5rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.logo img { height: 34px; width: auto; max-width: min(200px, 45vw); }

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #fff;
}

.logo-text {
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.header-tagline {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.page-main { min-height: calc(100vh - 120px); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.site-footer a { color: var(--accent-hover); text-decoration: none; }

/* Typography — override Bootstrap on dark surfaces */
.page-main .text-muted {
  color: var(--text-muted) !important;
}

.page-main h1,
.page-main h2,
.page-main h3,
.page-main .h1,
.page-main .h2,
.page-main .h3,
.page-main .h4,
.page-main .h5,
.page-main .h6 {
  color: var(--text);
}

.card-panel,
.card-panel .card-body {
  color: var(--text);
}

.card-panel .text-muted {
  color: var(--text-muted) !important;
}

/* Bootstrap dark overrides */
.card-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.form-control,
.form-select {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text);
}

.form-control::placeholder {
  color: var(--text-subtle);
  opacity: 1;
}

.form-control:focus,
.form-select:focus {
  background: var(--bg-card);
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 0 0 0.2rem var(--accent-soft);
}

.form-label {
  color: var(--text-label);
  font-weight: 500;
}

.form-select option {
  background: var(--bg-card);
  color: var(--text);
}

/* Native date/time inputs */
input[type="date"],
input[type="time"] {
  color-scheme: dark;
}

input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
  filter: invert(0.85);
  opacity: 0.9;
}

.event-head .form-label {
  color: var(--text-muted);
}

#event-title {
  color: var(--text);
}

.badge.text-bg-secondary {
  --bs-secondary-bg: rgba(255, 255, 255, 0.14);
  background-color: var(--bs-secondary-bg) !important;
  color: var(--text) !important;
}

.alert-danger {
  --bs-alert-color: #fecaca;
  --bs-alert-bg: rgba(185, 28, 28, 0.25);
  --bs-alert-border-color: rgba(248, 113, 113, 0.35);
}

.alert-success {
  --bs-alert-color: #bbf7d0;
  --bs-alert-bg: rgba(16, 185, 129, 0.18);
  --bs-alert-border-color: rgba(16, 185, 129, 0.35);
}

.btn-primary {
  --bs-btn-bg: var(--accent);
  --bs-btn-border-color: var(--accent);
  --bs-btn-hover-bg: var(--accent-hover);
  --bs-btn-hover-border-color: var(--accent-hover);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-secondary {
  --bs-btn-bg: rgba(255, 255, 255, 0.08);
  --bs-btn-border-color: var(--border);
  --bs-btn-color: var(--text);
  --bs-btn-hover-bg: rgba(255, 255, 255, 0.12);
  --bs-btn-hover-color: var(--text);
}

.share-box .form-control { font-size: 0.9rem; }

/* Legend */
.turnstile-wrap {
  margin-top: 0.25rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.legend-item { display: inline-flex; align-items: center; gap: 0.4rem; }

.swatch {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.swatch-busy { background: var(--busy); }
.swatch-free { background: var(--success); border-color: rgba(16, 185, 129, 0.4); }
.swatch-group { background: linear-gradient(90deg, var(--busy), var(--success)); }

/* Availability grid */
.grid-scroll {
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 8px;
  border: 1px solid var(--border);
  user-select: none;
}

.avail-grid {
  display: grid;
  border-collapse: collapse;
  min-width: max-content;
  background: var(--bg);
}

.avail-grid .corner {
  position: sticky;
  left: 0;
  z-index: 3;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  min-width: 72px;
}

.avail-grid .hour-label {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--bg-elevated);
  padding: 0.35rem 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--busy-border);
  white-space: nowrap;
}

.avail-grid .day-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.05rem;
  padding: 0.4rem 0.25rem;
  text-align: center;
  line-height: 1.15;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--busy-border);
  min-width: 20px;
}

.avail-grid .day-head .month,
.avail-grid .day-head .day {
  display: block;
}

.avail-grid .day-head .month {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.avail-grid .day-head .day {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.avail-grid .day-head .wd {
  display: block;
  margin-top: 0.1rem;
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.65rem;
}

@media (max-width: 768px) {
  .avail-grid .day-head {
    min-width: 20px;
    padding: 0.35rem 0.15rem;
  }

  .avail-grid .day-head .month {
    font-size: 0.62rem;
  }

  .avail-grid .day-head .day {
    font-size: 0.88rem;
  }
}

.avail-grid .slot {
  min-width: 20px;
  min-height: 28px;
  border-right: 1px solid var(--busy-border);
  border-bottom: 1px solid var(--busy-border);
  cursor: pointer;
  transition: background 0.08s ease;
  touch-action: none;
}

.avail-grid .slot.busy {
  background: var(--busy);
}

.avail-grid .slot.free {
  background: var(--success);
}

.avail-grid .slot.free:hover {
  filter: brightness(1.08);
}

.avail-grid .slot.group {
  background: var(--busy);
}

.avail-grid.readonly .slot {
  cursor: default;
}

.avail-grid .slot.group-0 { background: var(--busy); }

.avail-grid .slot.group-1 { background: color-mix(in srgb, var(--success) 25%, var(--busy)); }
.avail-grid .slot.group-2 { background: color-mix(in srgb, var(--success) 45%, var(--busy)); }
.avail-grid .slot.group-3 { background: color-mix(in srgb, var(--success) 65%, var(--busy)); }
.avail-grid .slot.group-4 { background: color-mix(in srgb, var(--success) 85%, var(--busy)); }
.avail-grid .slot.group-all { background: var(--success); }

#save-status.saving { opacity: 0.7; }
#save-status.error { background: #b91c1c !important; }

@media (max-width: 768px) {
  .site-header .container-xl { flex-wrap: wrap; }
  .header-tagline { width: 100%; order: 3; padding-bottom: 0.25rem; }
}