/* =============================================================================
   SportsProclub - Modern Mobile-First CSS Framework
   ============================================================================= */

/* ---------------------------------------------------------------------------
   1. CSS Variables (Design Tokens)
   --------------------------------------------------------------------------- */
:root {
  /* Brand Colors */
  --primary-color: #00c896;
  --primary-dark: #00b389;
  --primary-light: #4dd9b3;
  --secondary-color: #0d6efd;
  --accent-color: #ffc107;
  
  /* UI Colors */
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --info: #17a2b8;
  
  /* Neutral Colors */
  --dark: #1a1a1a;
  --text-dark: #2c3e50;
  --text-light: #6c757d;
  --text-muted: #95a5a6;
  --border-color: #dee2e6;
  --bg-light: #f8f9fb;
  --white: #ffffff;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 6px 20px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.15);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ---------------------------------------------------------------------------
   2. Reset & Base Styles
   --------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
  overflow-x: hidden;
}

/* ---------------------------------------------------------------------------
   3. Typography
   --------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-dark);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

/* ---------------------------------------------------------------------------
   4. Layout Components
   --------------------------------------------------------------------------- */

/* Container */
.container-custom {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Card System */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.card-compact {
  padding: var(--spacing-md);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--text-dark);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

/* Match Cards */
.card-match {
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid var(--border-color);
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fb 100%);
}

.card-match:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

/* Tournament Cards */
.tournament-card {
  position: relative;
  overflow: hidden;
  border-left: 4px solid var(--primary-color);
}

.tournament-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

/* Feature Cards */
.feature-card {
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-xl);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.feature-card .icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

/* ---------------------------------------------------------------------------
   5. Button System
   --------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.625rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  outline: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
  box-shadow: 0 4px 12px rgba(0, 200, 150, 0.3);
  color: var(--white);
}

.btn-secondary {
  background: var(--secondary-color);
  color: var(--white);
  border-color: var(--secondary-color);
}

.btn-secondary:hover {
  background: #0056b3;
  box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
  color: var(--white);
}

.btn-outline-primary {
  background: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline-primary:hover {
  background: var(--primary-color);
  color: var(--white);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

.btn-outline-light:hover {
  background: var(--white);
  color: var(--primary-color);
}

.btn-success {
  background: var(--success);
  color: var(--white);
  border-color: var(--success);
}

.btn-success:hover {
  background: #218838;
  box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
  color: var(--white);
}

.btn-warning {
  background: var(--warning);
  color: var(--dark);
  border-color: var(--warning);
}

.btn-warning:hover {
  background: #e0a800;
  box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 0.875rem 2rem;
  font-size: var(--font-size-lg);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ---------------------------------------------------------------------------
   6. Form Elements
   --------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--text-dark);
  font-size: var(--font-size-sm);
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-dark);
  background-color: var(--white);
  background-clip: padding-box;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1);
}

.form-control::placeholder {
  color: var(--text-muted);
}

/* ---------------------------------------------------------------------------
   7. Badge System
   --------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--radius-full);
}

.badge-primary { background: var(--primary-color); color: var(--white); }
.badge-secondary { background: var(--secondary-color); color: var(--white); }
.badge-success { background: var(--success); color: var(--white); }
.badge-warning { background: var(--warning); color: var(--dark); }
.badge-danger { background: var(--danger); color: var(--white); }
.badge-info { background: var(--info); color: var(--white); }
.badge-light { background: #f8f9fa; color: var(--text-dark); border: 1px solid var(--border-color); }

/* ---------------------------------------------------------------------------
   8. Alert System
   --------------------------------------------------------------------------- */
.alert {
  position: relative;
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

.alert-success {
  color: #155724;
  background-color: #d4edda;
  border-color: #c3e6cb;
}

.alert-warning {
  color: #856404;
  background-color: #fff3cd;
  border-color: #ffeaa7;
}

.alert-danger {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

.alert-info {
  color: #0c5460;
  background-color: #d1ecf1;
  border-color: #bee5eb;
}

/* ---------------------------------------------------------------------------
   9. Loading & Animations
   --------------------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes slideInUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

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

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-slide-in-up {
  animation: slideInUp 0.4s ease-out;
}

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  border-radius: var(--radius-md);
}

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

/* ---------------------------------------------------------------------------
   10. Navigation
   --------------------------------------------------------------------------- */
.navbar-custom {
  background: var(--white);
  padding: var(--spacing-md) 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.nav-link {
  color: var(--text-dark);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-color);
}

/* ---------------------------------------------------------------------------
   11. Footer Navigation (Mobile)
   --------------------------------------------------------------------------- */
.footer-menu {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--border-color);
  padding: 0.5rem 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: var(--z-fixed);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.footer-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--text-light);
  font-size: var(--font-size-xs);
  font-weight: 500;
  padding: var(--spacing-xs);
  transition: all var(--transition-fast);
  min-width: 60px;
}

.footer-link i {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  transition: transform var(--transition-fast);
}

.footer-link:hover, .footer-link.active {
  color: var(--primary-color);
}

.footer-link:hover i, .footer-link.active i {
  transform: scale(1.15);
}

/* ---------------------------------------------------------------------------
   12. Utilities
   --------------------------------------------------------------------------- */

/* Spacing */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }

.fw-normal { font-weight: 400; }
.fw-medium { font-weight: 500; }
.fw-semibold { font-weight: 600; }
.fw-bold { font-weight: 700; }

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-none { box-shadow: none; }

/* Border Radius */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

/* ---------------------------------------------------------------------------
   13. Logo & Image Styles
   --------------------------------------------------------------------------- */
.logo-img {
  height: 50px;
  width: 50px;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  padding: 4px;
  background: var(--white);
}

.team-logo {
  height: 48px;
  width: 48px;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  padding: 4px;
  transition: transform var(--transition-base);
}

.team-logo:hover {
  transform: scale(1.1);
}

.player-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-color);
}

/* ---------------------------------------------------------------------------
   14. WhatsApp Float Button
   --------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: var(--z-popover);
  background: #25d366;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
}

.whatsapp-float img {
  width: 32px;
  height: 32px;
}

@keyframes pulse-whatsapp {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 24px rgba(37, 211, 102, 0.7), 0 0 0 10px rgba(37, 211, 102, 0.2);
  }
}

/* ---------------------------------------------------------------------------
   15. Mobile Optimizations
   --------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.375rem;
    --font-size-xl: 1.125rem;
  }
  
  body {
    padding-bottom: 70px; /* Space for fixed footer nav */
  }
  
  .container-custom {
    padding: 0 var(--spacing-sm);
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  .feature-card {
    padding: var(--spacing-lg);
  }
  
  .btn {
    padding: 0.5rem 1.25rem;
    font-size: var(--font-size-sm);
  }
  
  .logo-img {
    height: 40px;
    width: 40px;
  }
  
  .team-logo {
    height: 36px;
    width: 36px;
  }
  
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  h4 { font-size: 1.125rem; }
  
  .whatsapp-float {
    bottom: 70px;
    right: 15px;
    width: 50px;
    height: 50px;
  }
  
  .whatsapp-float img {
    width: 28px;
    height: 28px;
  }
}

@media (max-width: 576px) {
  :root {
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.75rem;
  }
  
  .card {
    padding: var(--spacing-sm);
  }
  
  .btn {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
  }
  
  .btn-lg {
    padding: 0.625rem 1.5rem;
    font-size: var(--font-size-base);
  }
  
  .team-logo {
    height: 32px;
    width: 32px;
  }
}

/* ---------------------------------------------------------------------------
   16. Print Styles
   --------------------------------------------------------------------------- */
@media print {
  .footer-menu,
  .whatsapp-float,
  .navbar-custom,
  .btn {
    display: none !important;
  }
  
  body {
    background: white;
    padding-bottom: 0;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

/* ---------------------------------------------------------------------------
   17. Accessibility
   --------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------------------------------------------------------------------------
   18. Dark Mode Support (Optional - Ready for future implementation)
   --------------------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  /* Uncomment when implementing dark mode
  :root {
    --text-dark: #e0e0e0;
    --text-light: #a0a0a0;
    --bg-light: #1a1a1a;
    --white: #2d2d2d;
    --border-color: #404040;
  }
  */
}