/* ============================================================
   DESIGN TOKENS — Lexington Green Front Desk Briefing
   A late-night hotel-ops aesthetic: deep charcoal-navy surfaces,
   warm brass/gold accent, quiet teal for confirmations.
   ============================================================ */

:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #f6f4ef;
  --color-surface: #ffffff;
  --color-surface-2: #f1eee6;
  --color-surface-offset: #ebe7dc;
  --color-divider: #ddd7c9;
  --color-border: #d2ccbb;

  /* Text */
  --color-text: #201d17;
  --color-text-muted: #635c4d;
  --color-text-faint: #a49a83;
  --color-text-inverse: #f8f6f0;

  /* Brass / Gold primary accent */
  --color-primary: #97671f;
  --color-primary-hover: #7c5518;
  --color-primary-active: #634311;
  --color-primary-highlight: #ecdfc4;

  /* Status */
  --color-success: #2f7a5c;
  --color-success-highlight: #d4e8dd;
  --color-warning: #b3661a;
  --color-warning-highlight: #f0dcc0;
  --color-critical: #a1332c;
  --color-critical-highlight: #f1d4d1;
  --color-info: #2f6a8f;
  --color-info-highlight: #d4e4ed;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 80 / 0.08);
  --shadow-md: 0 8px 24px oklch(0.2 0.02 80 / 0.1);
  --shadow-lg: 0 20px 48px oklch(0.2 0.02 80 / 0.16);

  --content-wide: 1240px;

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Switzer', 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

[data-theme='dark'] {
  --color-bg: #0e1013;
  --color-surface: #15181c;
  --color-surface-2: #1a1e23;
  --color-surface-offset: #1d2127;
  --color-divider: #23272d;
  --color-border: #2b3038;

  --color-text: #eeece5;
  --color-text-muted: #9a9e9c;
  --color-text-faint: #5c6167;
  --color-text-inverse: #15181c;

  --color-primary: #dba556;
  --color-primary-hover: #e8bb72;
  --color-primary-active: #c1913f;
  --color-primary-highlight: #3a3122;

  --color-success: #57b795;
  --color-success-highlight: #1c332a;
  --color-warning: #e08a41;
  --color-warning-highlight: #3a2a1a;
  --color-critical: #e4685f;
  --color-critical-highlight: #3a2020;
  --color-info: #6fa9d1;
  --color-info-highlight: #1f2c35;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 24px 56px oklch(0 0 0 / 0.55);
}

/* Type scale */
:root {
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.83rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.375rem);
  --text-xl: clamp(1.375rem, 1.2rem + 0.9vw, 1.875rem);
  --text-2xl: clamp(1.875rem, 1.4rem + 2vw, 2.75rem);
  --text-3xl: clamp(2.25rem, 1.3rem + 3.5vw, 3.75rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
}

/* ============================================================
   BASE
   ============================================================ */

body {
  background:
    radial-gradient(
      ellipse 1200px 600px at 50% -10%,
      color-mix(in oklab, var(--color-primary) 10%, transparent),
      transparent
    ),
    var(--color-bg);
  font-family: var(--font-body);
}

.wrap {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

a {
  color: inherit;
}

/* ============================================================
   HEADER
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-block: var(--space-3);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.brand__mark {
  width: 34px;
  height: 34px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand__subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.header-nav {
  display: flex;
  gap: var(--space-5);
  margin-left: var(--space-4);
}

.header-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  white-space: nowrap;
}
.header-nav a:hover {
  color: var(--color-text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box svg {
  position: absolute;
  left: var(--space-3);
  width: 16px;
  height: 16px;
  color: var(--color-text-faint);
  pointer-events: none;
}

.search-box input {
  width: 240px;
  max-width: 40vw;
  padding: var(--space-2) var(--space-3) var(--space-2) calc(var(--space-3) * 2 + 16px);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.search-box input::placeholder {
  color: var(--color-text-faint);
}

.search-box input:focus {
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  flex-shrink: 0;
}
.icon-btn:hover {
  background: var(--color-surface-offset);
  border-color: var(--color-primary);
}
.icon-btn svg {
  width: 18px;
  height: 18px;
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  padding-block: var(--space-16) var(--space-12);
  position: relative;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-5);
}

.hero__eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-highlight);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 500;
  letter-spacing: -0.01em;
  max-width: 20ch;
  margin-bottom: var(--space-5);
}

.hero__title em {
  font-style: italic;
  color: var(--color-primary);
}

.hero__lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 62ch;
  margin-bottom: var(--space-10);
}

.hero__lede strong {
  color: var(--color-text);
  font-weight: 600;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.stat-card {
  padding: var(--space-5) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.stat-card__value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}

.stat-card__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ============================================================
   SECTION SHARED
   ============================================================ */

.section {
  padding-block: var(--space-12);
  border-top: 1px solid var(--color-divider);
}

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
}

.section__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  max-width: 56ch;
}

.section__count {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   ALERTS
   ============================================================ */

.alerts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.alert-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-left: 4px solid var(--color-border);
}

.alert-card[data-level='critical'] {
  border-left-color: var(--color-critical);
  background: linear-gradient(
    to right,
    color-mix(in oklab, var(--color-critical) 7%, var(--color-surface)),
    var(--color-surface) 30%
  );
}
.alert-card[data-level='warning'] {
  border-left-color: var(--color-warning);
  background: linear-gradient(
    to right,
    color-mix(in oklab, var(--color-warning) 7%, var(--color-surface)),
    var(--color-surface) 30%
  );
}
.alert-card[data-level='info'] {
  border-left-color: var(--color-info);
  background: linear-gradient(
    to right,
    color-mix(in oklab, var(--color-info) 7%, var(--color-surface)),
    var(--color-surface) 30%
  );
}

.alert-card__icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
}
.alert-card[data-level='critical'] .alert-card__icon {
  background: var(--color-critical-highlight);
  color: var(--color-critical);
}
.alert-card[data-level='warning'] .alert-card__icon {
  background: var(--color-warning-highlight);
  color: var(--color-warning);
}
.alert-card[data-level='info'] .alert-card__icon {
  background: var(--color-info-highlight);
  color: var(--color-info);
}
.alert-card__icon svg {
  width: 18px;
  height: 18px;
}

.alert-card__body {
  min-width: 0;
}

.alert-card__tag {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: var(--space-1);
  display: block;
}
.alert-card[data-level='critical'] .alert-card__tag {
  color: var(--color-critical);
}
.alert-card[data-level='warning'] .alert-card__tag {
  color: var(--color-warning);
}
.alert-card[data-level='info'] .alert-card__tag {
  color: var(--color-info);
}

.alert-card__title {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.alert-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   FILTER BAR
   ============================================================ */

.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.filter-pill {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.filter-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.filter-pill.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 600;
}

/* ============================================================
   GROUP CARDS
   ============================================================ */

.group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-5);
}

.group-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
}

.group-card:hover {
  border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border));
  box-shadow: var(--shadow-md);
}

.group-card[data-type='meeting'] {
  border-style: dashed;
}

.group-card__top {
  padding: var(--space-5);
}

.group-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.group-card__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.25;
}

.group-card__code {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
}

.group-card__dates {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.group-card__dates svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.group-card__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.meta-item__label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 2px;
}
.meta-item__value {
  color: var(--color-text);
}
.meta-item__value a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-text-faint);
}
.meta-item__value a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.group-card__pickup {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.pickup-chip {
  font-size: var(--text-xs);
  background: var(--color-surface-2);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-sm);
  padding: 3px var(--space-2);
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}
.pickup-chip strong {
  color: var(--color-text);
}

.group-card__flag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.flag-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 3px var(--space-2);
  border-radius: var(--radius-full);
}
.flag-badge[data-level='critical'] {
  background: var(--color-critical-highlight);
  color: var(--color-critical);
}
.flag-badge[data-level='warning'] {
  background: var(--color-warning-highlight);
  color: var(--color-warning);
}
.flag-badge[data-level='info'] {
  background: var(--color-info-highlight);
  color: var(--color-info);
}
.flag-badge svg {
  width: 11px;
  height: 11px;
}

.group-card__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}
.group-card__toggle:hover {
  color: var(--color-primary);
  background: var(--color-surface-offset);
}
.group-card__toggle svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-interactive);
}
.group-card.is-open .group-card__toggle svg {
  transform: rotate(180deg);
}

.group-card__details {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 260ms cubic-bezier(0.16, 1, 0.3, 1);
}
.group-card.is-open .group-card__details {
  grid-template-rows: 1fr;
}
.group-card__details-inner {
  overflow: hidden;
}

.detail-block {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-divider);
}
.detail-block:first-child {
  border-top: none;
}

.detail-block__label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.detail-block__label svg {
  width: 13px;
  height: 13px;
}

.detail-block ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.detail-block li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: var(--space-4);
  position: relative;
}
.detail-block li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.65em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-text-faint);
}

/* ============================================================
   TIMELINE / SCHEDULE
   ============================================================ */

.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--color-divider);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-6);
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: var(--space-5);
}
.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) + 1px);
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
}

.timeline-item__when {
  font-size: var(--text-sm);
}
.timeline-item__date {
  font-weight: 700;
  color: var(--color-text);
}
.timeline-item__time {
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  margin-top: 2px;
}

.timeline-item__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.timeline-item__room {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-1);
}
.timeline-item__room svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.timeline-item__name {
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.timeline-item__note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   EMPTY STATE
   ============================================================ */

.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  color: var(--color-text-muted);
  display: none;
}
.empty-state.is-visible {
  display: block;
}
.empty-state svg {
  width: 32px;
  height: 32px;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  color: var(--color-text-faint);
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-10);
  margin-top: var(--space-12);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.footer-note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 48ch;
}
.footer-note strong {
  color: var(--color-text);
}

.footer-actions {
  display: flex;
  gap: var(--space-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn svg {
  width: 14px;
  height: 14px;
}
.btn--primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text-inverse);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 900px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .alerts-grid {
    grid-template-columns: 1fr;
  }
  .header-nav {
    display: none;
  }
  .timeline-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

@media (max-width: 640px) {
  .stat-grid {
    grid-template-columns: 1fr 1fr;
  }
  .wrap {
    padding-inline: var(--space-4);
  }
  .site-header__inner {
    gap: var(--space-2);
  }
  .header-actions {
    gap: var(--space-2);
  }
  .brand__subtitle {
    display: none;
  }
  .brand__title {
    font-size: var(--text-sm);
  }
  .search-box input {
    width: 26vw;
    max-width: 26vw;
    padding-left: calc(var(--space-2) * 2 + 14px);
    padding-right: var(--space-2);
  }
  .search-box svg {
    left: var(--space-2);
    width: 14px;
    height: 14px;
  }
  .icon-btn {
    width: 32px;
    height: 32px;
  }
  .icon-btn svg {
    width: 16px;
    height: 16px;
  }
  .brand__mark {
    width: 26px;
    height: 26px;
  }
  .group-card__meta {
    grid-template-columns: 1fr;
  }
  .hero__title {
    max-width: 100%;
  }
  .footer-grid {
    flex-direction: column;
  }
}

@media print {
  .site-header,
  .filter-bar,
  .search-box,
  .icon-btn,
  .group-card__toggle {
    display: none !important;
  }
  .group-card__details {
    grid-template-rows: 1fr !important;
  }
  body {
    background: white;
  }
}