:root {
  --bg-primary: #fafafa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #dbeafe;
  --success: #059669;
  --warning: #d97706;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --font-sans: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #1a1a1a;
    --border-light: #2a2a2a;
    --border-medium: #3a3a3a;
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: rgba(59, 130, 246, 0.1);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.header {
  text-align: center;
  margin-bottom: 1rem;
}

.header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 2rem;
}

.main-btn {
  display: inline-block;
  background-color: var(--accent);
  color: white;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.main-btn:hover {
  background-color: var(--accent-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* Enhanced styling when game is today */
body.game-today .main-btn {
  background-color: var(--success);
  box-shadow: var(--shadow-lg);
}

body.game-today .main-btn:hover {
  background-color: #047857;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.game-label {
  display: inline-block;
  background-color: var(--accent-light);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

#opponent {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.025em;
  line-height: 1.3;
}

#datetime {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-weight: 500;
}

/* Special TODAY styling */
body.game-today #datetime {
  font-size: 2rem;
  font-weight: 700;
  color: var(--success);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.countdown {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
  padding: 1rem;
  background-color: var(--accent-light);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--border-light);
}

.countdown.pop {
  animation: subtle-pop 0.3s ease;
}

@keyframes subtle-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

.games-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 400px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
  padding-right: 8px;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.games-list::-webkit-scrollbar {
  width: 6px;
}

.games-list::-webkit-scrollbar-track {
  background: transparent;
}

.games-list::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: 3px;
  transition: background-color 0.2s ease;
}

.games-list::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-muted);
}

/* Global scrollbar styling like Claude.ai */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

*::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-muted);
}

*::-webkit-scrollbar-corner {
  background: transparent;
}

.games-list h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
  line-height: 1.3;
}

.game-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  margin-right: 0;
}

.game-item:hover {
  background-color: var(--accent-light);
  border-color: var(--accent);
  transform: translateX(2px);
}

.opponent-name {
  font-weight: 500;
  color: var(--text-primary);
}

.game-time {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer {
  text-align: center;
  padding: 1rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  border-top: 1px solid var(--border-light);
  margin-top: auto;
}

.hidden {
  display: none !important;
}

.fade-in {
  animation: fade-in 0.6s ease-out;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive design */
@media (max-width: 640px) {
  .container {
    padding: 1rem;
    gap: 1.5rem;
  }

  .card {
    padding: 1rem;
  }

  .game-item {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  .countdown {
    font-size: 1.25rem;
  }

  body.game-today #datetime {
    font-size: 1.5rem;
  }
}