/* =============================================
   GLOBAL.CSS - Green Park Stadium Portal
   Enterprise-grade base styles
   ============================================= */

:root {
  --primary-color: #1E3A8A;
  --accent-color: #3B82F6;
  --dark-bg: #0F172A;
  --saffron-gold: #F59E0B;
  --dark-green: #1B5E20;
  --light-bg: #F8FAFC;
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --text-muted: #374151;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--light-bg);
  color: #333;
  overflow-x: hidden;
  font-size: 1.1rem;
  line-height: 1.7;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--dark-bg);
  text-transform: uppercase;
  letter-spacing: -0.5px;
  font-weight: 800;
  margin-top: 0;
}

.display-1 {
  font-weight: 900 !important;
  letter-spacing: -2px;
  line-height: 1.05;
  text-transform: uppercase;
}

.display-4 {
  font-weight: 900 !important;
  letter-spacing: -1px;
  text-transform: uppercase;
}

/* Skip to content link (WCAG 2.1 Level A) */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--dark-bg);
  color: #fff;
  padding: 12px 24px;
  z-index: 9999;
  font-weight: 700;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

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

/* Navbar */
.glass-nav {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
  padding: 15px 0;
  transition: all var(--transition-normal);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary-color) !important;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  text-decoration: none;
}

.brand-icon {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, var(--primary-color), var(--dark-green));
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(30, 58, 138, 0.4);
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  color: var(--dark-bg) !important;
  margin: 0 2px;
  padding: 10px 14px !important;
  border-radius: 8px;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.nav-link:hover, .nav-link.active-nav {
  background-color: var(--primary-color);
  color: white !important;
  box-shadow: 0 4px 15px rgba(30, 58, 138, 0.2);
}

@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 16px;
    padding: 20px;
    margin-top: 15px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    border: 1px solid rgba(30, 58, 138, 0.1);
  }
  .nav-link { margin-bottom: 8px; text-align: center; }
}

/* Navbar collapse fix */
.navbar-collapse.collapse { visibility: visible !important; }
.navbar-collapse.collapsing { visibility: visible !important; }

/* Buttons */
.btn {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 800;
  padding: 14px 32px;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-gradient {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: white;
  box-shadow: 0 10px 20px rgba(30, 58, 138, 0.3);
}

.btn-gradient:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 30px rgba(30, 58, 138, 0.5);
  color: white;
}

.btn-outline-light-premium {
  border: 2px solid white;
  color: white;
  background: transparent;
}

.btn-outline-light-premium:hover {
  background: white;
  color: var(--dark-bg);
  transform: translateY(-3px) scale(1.02);
}

.btn-youtube {
  background: linear-gradient(135deg, #dc2626, #991b1b);
  color: white;
  padding: 12px 24px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
  text-decoration: none;
  white-space: nowrap;
}

.btn-youtube:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(220, 38, 38, 0.5);
  color: white;
}

/* Footer */
.footer-premium {
  background: #020617;
  color: #94A3B8;
  border-top: 6px solid var(--accent-color);
}

/* Form Inputs */
.form-control, .form-select {
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  border: 2px solid #E2E8F0;
  font-size: 1.1rem;
  background-color: #F8FAFC;
  transition: all var(--transition-fast);
}

.form-control:focus, .form-select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
  background-color: white;
  outline: none;
}

/* Utility Classes */
.container {
  max-width: 1200px;
}

.text-muted {
  color: var(--text-muted) !important;
}

.bg-theme-light { background-color: rgba(30, 58, 138, 0.08); color: var(--primary-color); }
.bg-purple-light { background-color: rgba(109, 40, 217, 0.08); color: var(--dark-green); }
.bg-gold-light { background-color: rgba(245, 158, 11, 0.12); color: #B45309; }

/* Hero Gradient */
.hero-gradient {
  background: linear-gradient(-45deg, #1E3A8A, #1B5E20, #0F172A, #0EA5E9);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  position: relative;
  color: white;
  padding: 180px 0 120px;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-gradient::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0IiBoZWlnaHQ9IjQiPgo8cmVjdCB3aWR0aD0iNCIgaGVpZ2h0PSI0IiBmaWxsPSIjZmZmIiBmaWxsLW9wYWNpdHk9IjAuMDUiLz4KPC9zdmc+') repeat;
  opacity: 0.3;
  pointer-events: none;
}

@media (max-width: 767.98px) {
  .hero-gradient { padding: 120px 0 80px; }
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Page Sections */
.page-section {
  display: none;
  animation: fadeUp 0.6s ease-out forwards;
}

.page-section.active {
  display: block;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Custom Table */
.table-premium th {
  background-color: var(--dark-bg);
  color: white;
  border: none;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 20px !important;
}

.table-premium td {
  vertical-align: middle;
  border-bottom: 1px solid #edf2f7;
  padding: 20px !important;
  font-size: 1.1rem;
}

.table-premium tr:hover td {
  background-color: #F4F7FF;
}

/* Custom Nav Pills */
.nav-pills .nav-link.active, .nav-pills .show>.nav-link {
  background-color: var(--primary-color) !important;
  color: white !important;
  box-shadow: 0 5px 15px rgba(30, 58, 138, 0.3);
  border-radius: 50px !important;
}

.nav-pills .nav-link {
  color: var(--dark-bg);
  background-color: white;
  border-radius: 50px !important;
  padding: 12px 28px;
  transition: all var(--transition-normal);
}

.nav-pills .nav-link:hover {
  background-color: #F4F7FF;
  color: var(--primary-color);
}

/* Icon Box */
.icon-box {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 30px;
}

/* Main Content Area */
main {
  flex-grow: 1;
}

/* Link styles */
a {
  color: var(--primary-color);
  text-decoration: none;
}

a:hover {
  color: var(--accent-color);
}

/* Responsive typography */
@media (max-width: 768px) {
  body { font-size: 1rem; }
  h1, .display-1 { font-size: 2rem; letter-spacing: -1px; }
  h2, .display-4 { font-size: 1.75rem; }
}

/* Print styles */
@media print {
  .glass-nav, .footer-premium, .btn { display: none !important; }
  .page-section { display: block !important; }
  body { background: white; }
}