@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  /* Wimbledon Palette */
  --wimbledon-green: #00703c;
  --wimbledon-green-light: #00a859;
  --wimbledon-purple: #4f2e7c;
  --wimbledon-purple-light: #7b4cbe;
  
  /* Layout & Spacing */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Status Colors */
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
}

/* Theme - Dark Mode (Default) */
body, body.dark-theme {
  --bg-color: #0b0f19;
  --surface: #151a28;
  --surface-elevated: #1f273b;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.08);
  
  /* Glass & Cards */
  --glass-bg: rgba(21, 26, 40, 0.6);
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  --glass-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  
  /* Leaderboard Rows & Flags */
  --row-bg-even: #151a28;
  --row-bg-odd: #1d2436;
  --flag-gradient-start: rgba(11, 15, 25, 0.55);
  
  /* Accents & Special States */
  --accent-color: #ffd700;
}

/* Theme - Light Mode (Flat) */
body.light-theme {
  --bg-color: #f8fafc;
  --surface: #ffffff;
  --surface-elevated: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --border-color: #e2e8f0;
  
  /* Glass & Cards (Flat light card styles) */
  --glass-bg: #ffffff;
  --glass-border: #e2e8f0;
  --glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --glass-shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.06);
  --glass-border-hover: #cbd5e1;
  
  /* Leaderboard Rows & Flags */
  --row-bg-even: #ffffff;
  --row-bg-odd: #f8fafc;
  --flag-gradient-start: rgba(255, 255, 255, 0.6);
  
  /* Accents & Special States */
  --accent-color: #d97706;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

a {
  color: var(--wimbledon-green-light);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--text-primary);
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

/* Layout */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
  flex: 1;
}

/* Navbar */
.navbar {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.navbar-logo {
  height: 32px;
  width: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.navbar-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  text-shadow: none;
}

/* Glass Cards */
.glass-card {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  box-shadow: var(--glass-shadow);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--wimbledon-purple), var(--wimbledon-green));
  opacity: 0;
  transition: var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-hover);
  border-color: var(--glass-border-hover);
}

.glass-card:hover::before {
  opacity: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  text-align: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--wimbledon-purple);
  color: #fff;
}

.btn-primary:hover {
  background: var(--wimbledon-purple-light);
  transform: translateY(-1.5px);
}

.btn-secondary {
  background: var(--surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--surface-elevated);
  filter: brightness(0.95);
  transform: translateY(-1.5px);
}

.btn-success {
  background: var(--wimbledon-green);
  color: #fff;
}

.btn-success:hover {
  background: var(--wimbledon-green-light);
  transform: translateY(-1.5px);
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}

.btn-danger:hover {
  background: var(--danger);
  color: #fff;
  transform: translateY(-1.5px);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--wimbledon-purple-light);
  box-shadow: 0 0 0 3px rgba(123, 76, 190, 0.2);
}

/* Flash Messages */
.flash-messages {
  position: fixed;
  top: 80px;
  right: 1.5rem;
  z-index: 1050;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.flash {
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
  animation: slideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(8px);
}

.flash-notice { background: rgba(16, 185, 129, 0.2); border-left: 4px solid var(--success); }
.flash-alert { background: rgba(239, 68, 68, 0.2); border-left: 4px solid var(--danger); }

/* Utilities */
.text-center { text-align: center; }
.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-3 { gap: 1rem; }

/* Animations */
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.league-show-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 2rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .app-container {
    padding: 1.5rem 1rem;
  }

  .navbar {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .navbar-nav {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .dashboard-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 1rem;
  }

  .dashboard-header .btn {
    width: 100%;
  }

  .flash-messages {
    right: 1rem;
    left: 1rem;
    top: auto;
    bottom: 1rem;
  }

  .league-show-grid {
    grid-template-columns: 1fr;
  }
}

/* Responsive Table & Content Utilities */
.show-on-mobile {
  display: none !important;
}

@media (max-width: 576px) {
  .hide-on-mobile {
    display: none !important;
  }
  .show-on-mobile {
    display: inline-block !important;
  }
  th.show-on-mobile, td.show-on-mobile {
    display: table-cell !important;
  }
  .league-show-grid table {
    min-width: 100% !important;
  }
}