/* ALGS Schedule - CSS Custom Properties for theming */
:root {
  --bg-primary: #0f1115;
  --bg-secondary: #1a1d24;
  --bg-card: #22262e;
  --bg-hover: #2a2f38;
  --text-primary: #e8eaed;
  --text-secondary: #9aa0a6;
  --text-muted: #5f6368;
  --accent: #e53935;
  --accent-hover: #f44336;
  --accent-dim: rgba(229, 57, 53, 0.15);
  --border: #333840;
  --region-americas: #4fc3f7;
  --region-emea: #81c784;
  --region-apac-north: #ffb74d;
  --region-apac-south: #ce93d8;
  --status-upcoming: #4fc3f7;
  --status-live: #e53935;
  --status-completed: #5f6368;
  --confirmed-weight: 600;
  --estimated-weight: 400;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
}

[data-theme="light"] {
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #f1f3f4;
  --text-primary: #202124;
  --text-secondary: #5f6368;
  --text-muted: #9aa0a6;
  --border: #dadce0;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --accent-dim: rgba(229, 57, 53, 0.08);
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

/* Header */
header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.timezone-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.timezone-control label {
  color: var(--text-secondary);
}

.tz-detected-label {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.tz-badge {
  background: rgba(79, 195, 247, 0.12);
  color: var(--status-upcoming);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

#timezone-select {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
}

#theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text-primary);
  transition: background 0.2s;
}
#theme-toggle:hover {
  background: var(--bg-hover);
}

/* Filters */
.filters {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.filter-label {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  margin-right: 0.25rem;
}

.filter-btn {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
}
.filter-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.filter-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
}

.cal-btn {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
}
.cal-btn:hover {
  background: var(--accent-dim);
  color: var(--accent);
}

/* Main */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

.section {
  margin-bottom: 2rem;
}

.section h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

/* Timeline */
.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  transition: transform 0.15s, box-shadow 0.15s;
}
.timeline-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.timeline-card .event-type {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.timeline-card .event-type.lan { color: var(--accent); }
.timeline-card .event-type.pro-league { color: var(--status-upcoming); }
.timeline-card .event-type.qualifier { color: var(--text-muted); }

.timeline-card .event-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.timeline-card .event-dates {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}

.timeline-card .event-location {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.timeline-card .event-prize {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.timeline-card .event-countdown {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--status-upcoming);
  font-weight: 500;
}

/* Schedule */
.schedule .date-group {
  margin-bottom: 1.5rem;
}

.schedule .date-header {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
  position: sticky;
  top: 80px;
  background: var(--bg-primary);
  z-index: 10;
}

.match-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  transition: background 0.15s;
}
.match-card:hover {
  background: var(--bg-hover);
}

.match-time {
  min-width: 80px;
  text-align: center;
}

.match-time .time {
  font-size: 1rem;
  font-weight: var(--confirmed-weight);
}
.match-time .time.estimated {
  font-weight: var(--estimated-weight);
  font-style: italic;
  opacity: 0.8;
}

.match-time .time-label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.match-info {
  min-width: 0;
}

.match-info .match-description {
  font-weight: 500;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.match-info .match-event {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.match-info .match-teams {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.match-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.region-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.region-badge.americas { background: rgba(79,195,247,0.15); color: var(--region-americas); }
.region-badge.emea { background: rgba(129,199,132,0.15); color: var(--region-emea); }
.region-badge.apac-north { background: rgba(255,183,77,0.15); color: var(--region-apac-north); }
.region-badge.apac-south { background: rgba(206,147,216,0.15); color: var(--region-apac-south); }

.status-badge {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}
.status-badge.upcoming { background: rgba(79,195,247,0.12); color: var(--status-upcoming); }
.status-badge.live { background: rgba(229,57,53,0.15); color: var(--status-live); font-weight: 700; }
.status-badge.completed { background: rgba(95,99,104,0.12); color: var(--status-completed); }

.match-countdown {
  font-size: 0.7rem;
  color: var(--status-upcoming);
  white-space: nowrap;
}

/* Teams */
.teams-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.region-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.region-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.group-section {
  margin-bottom: 0.75rem;
}

.group-section h4 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.team-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.15rem 1rem;
}

.team-list li {
  font-size: 0.8rem;
  padding: 0.1rem 0;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.team-tag {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 500;
}

.team-qualifier {
  font-size: 0.6rem;
  color: var(--accent);
  font-weight: 500;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
footer p { margin-bottom: 0.5rem; }

/* Responsive */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    position: static;
  }

  .header-controls {
    width: 100%;
    flex-wrap: wrap;
  }

  .timezone-control {
    flex-wrap: wrap;
  }

  .filters {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-group {
    width: 100%;
  }

  .match-card {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .match-time {
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
  }

  .match-meta {
    justify-content: flex-start;
  }

  .teams-grid {
    grid-template-columns: 1fr;
  }

  .team-list {
    grid-template-columns: 1fr;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .schedule .date-header {
    top: 0;
  }
}

@media (max-width: 480px) {
  main { padding: 1rem; }
  header { padding: 0.75rem 1rem; }
  .filters { padding: 0.5rem 1rem; }
}

/* Prefers color scheme */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-hover: #f1f3f4;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #9aa0a6;
    --border: #dadce0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --accent-dim: rgba(229, 57, 53, 0.08);
  }
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
  height: 60px;
  margin-bottom: 0.5rem;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}