/* Glassmorphism Material UI Design */
:root {
  --bg: #0a0e1a;
  --panel: rgba(18, 25, 50, 0.4);
  --card: rgba(255, 255, 255, 0.05);
  --card-strong: rgba(255, 255, 255, 0.08);
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.7);
  --brand: #64b5f6;
  --brand-strong: #42a5f5;
  --accent: #26c6da;
  --border: rgba(255, 255, 255, 0.1);
  --border-light: rgba(255, 255, 255, 0.15);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --shadow-elevated: 0 12px 40px 0 rgba(0, 0, 0, 0.45);
  --radius: 20px;
  --blur: blur(20px);
}

* { box-sizing: border-box; }
html, body { 
  margin: 0; 
  padding: 0; 
  min-height: 100vh;
}

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(100, 181, 246, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(38, 198, 218, 0.15) 0%, transparent 50%),
    linear-gradient(135deg, #0a0e1a 0%, #1a1f35 100%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 30% 30%, rgba(100, 181, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(38, 198, 218, 0.08) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

a { 
  color: var(--brand); 
  text-decoration: none; 
  transition: color 0.2s ease;
}
a:hover { 
  color: var(--brand-strong); 
}

/* Glass Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.3);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px 0 rgba(0, 0, 0, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
  font-size: 1.25rem;
}

.nav { 
  display: flex; 
  gap: 24px; 
  align-items: center; 
}

.nav a { 
  color: var(--muted); 
  font-weight: 500; 
  padding: 8px 12px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav a.cta {
  color: white;
  background: linear-gradient(135deg, var(--brand-strong), var(--accent));
  padding: 10px 20px;
  border-radius: 999px;
  box-shadow: 0 4px 15px rgba(100, 181, 246, 0.3);
}

.nav a.cta:hover {
  box-shadow: 0 6px 20px rgba(100, 181, 246, 0.4);
  transform: translateY(-1px);
}

.nav-toggle { 
  display: none; 
  background: none; 
  border: 0; 
  color: var(--text); 
  font-size: 24px; 
  cursor: pointer;
  padding: 8px;
}

/* Hero Section */
.hero {
  position: relative;
  background-image:
    radial-gradient(ellipse 1200px 500px at 20% -10%, rgba(100, 181, 246, 0.2), transparent 70%),
    radial-gradient(ellipse 1000px 400px at 80% 0%, rgba(38, 198, 218, 0.15), transparent 70%),
    url('./images/PXN.png');
  background-size: cover, cover, cover;
  background-position: center, center, center;
  background-repeat: no-repeat;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.4) 100%);
  z-index: 0;
}

.hero, .hero * { position: relative; z-index: 1; }

.hero-inner { 
  text-align: center; 
}

.hero h1 { 
  font-size: 48px; 
  line-height: 1.2; 
  margin: 0 0 20px; 
  font-weight: 700;
  background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.9) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead { 
  color: var(--muted); 
  max-width: 720px; 
  margin: 0 auto 32px; 
  font-size: 1.1rem;
}

.hero-actions { 
  display: inline-flex; 
  gap: 16px; 
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-glass);
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}

.btn.primary {
  background: linear-gradient(135deg, var(--brand-strong), var(--accent));
  border: none;
  box-shadow: 0 8px 24px rgba(100, 181, 246, 0.35);
}

.btn.primary:hover {
  box-shadow: 0 12px 32px rgba(100, 181, 246, 0.45);
  transform: translateY(-2px);
}

/* Sections */
.section { 
  padding: 80px 0; 
  position: relative;
}

.section.alt { 
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0.01) 100%); 
  border-top: 1px solid var(--border); 
  border-bottom: 1px solid var(--border); 
}

.section h2 { 
  font-size: 32px; 
  margin: 0 0 24px; 
  font-weight: 700;
}

.note { 
  color: var(--muted); 
  font-size: 14px; 
  margin-top: 12px; 
}

/* Grid */
.grid { display: grid; gap: 28px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* Glass Cards */
.cards { align-items: stretch; }

.card {
  background: var(--card-strong);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-glass);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-light);
  box-shadow: var(--shadow-elevated);
  transform: translateY(-4px);
}

.checklist { padding-left: 24px; }
.checklist li { margin: 8px 0; }

.facts { 
  display: grid; 
  grid-template-columns: max-content 1fr; 
  gap: 12px 20px; 
}

.facts dt { 
  color: var(--muted); 
  font-weight: 500;
}

.facts dd { 
  margin: 0; 
  font-weight: 400;
}

/* Flight board */
.flight-board { 
  margin-top: 16px; 
  border: 1px solid var(--border); 
  border-radius: 16px; 
  overflow: hidden; 
  background: var(--card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}

.board-row { 
  display: grid; 
  grid-template-columns: 1.2fr 1.2fr .8fr 1fr; 
  gap: 0; 
}

.board-row > div { 
  padding: 14px 18px; 
  border-top: 1px solid var(--border); 
}

.board-head { 
  background: rgba(255, 255, 255, 0.05); 
  color: var(--muted); 
  font-weight: 600; 
}

/* Glass Tables */
.tables h3 { 
  font-size: 20px; 
  margin: 24px 0 16px; 
  color: var(--text); 
  font-weight: 600;
}

.table-wrap { 
  width: 100%; 
  overflow-x: auto; 
  border: 1px solid var(--border); 
  border-radius: 16px; 
  background: var(--card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  box-shadow: var(--shadow-glass);
}

.table { 
  width: 100%; 
  border-collapse: collapse; 
  font-size: 14px; 
  color: var(--text); 
}

.table th, .table td { 
  padding: 16px 18px; 
  border-top: 1px solid var(--border); 
  white-space: nowrap; 
  text-align: left; 
}

.table thead th { 
  position: sticky; 
  top: 0; 
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  color: var(--muted); 
  z-index: 2; 
  font-weight: 600;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
}

.table tbody tr {
  transition: all 0.2s ease;
}

.table tbody tr:hover {
  background: rgba(255, 255, 255, 0.05);
}

.table tbody td a {
  color: var(--brand);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.table tbody td a:hover {
  color: var(--accent);
}

/* Glass FAQ */
details {
  background: var(--card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border); 
  border-radius: 16px; 
  padding: 18px 20px; 
  margin: 16px 0; 
  box-shadow: var(--shadow-glass);
  transition: all 0.3s ease;
}

details:hover {
  border-color: var(--border-light);
  background: rgba(255, 255, 255, 0.08);
}

details summary { 
  cursor: pointer; 
  font-weight: 600; 
  color: var(--text);
  padding: 4px 0;
}

details summary:hover {
  color: var(--brand);
}

details p { 
  margin: 12px 0 0; 
  color: var(--muted); 
  padding-left: 8px;
}

/* Glass Form */
.form {
  background: var(--card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-glass);
}

.form label { 
  display: grid; 
  gap: 8px; 
  margin-bottom: 16px; 
}

.form label span {
  color: var(--muted);
  font-weight: 500;
  font-size: 14px;
}

.form input, .form textarea {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 16px;
  transition: all 0.3s ease;
}

.form input:focus, .form textarea:focus {
  outline: none;
  border-color: var(--brand);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(100, 181, 246, 0.1);
}

.form-note { 
  color: var(--muted); 
  font-size: 14px; 
  margin-top: 12px; 
}

.muted { color: var(--muted); }

/* Glass Footer */
.site-footer { 
  border-top: 1px solid var(--border); 
  background: rgba(10, 14, 26, 0.4);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  margin-top: 60px;
}

.footer-inner { 
  display: flex; 
  gap: 16px; 
  align-items: center; 
  justify-content: space-between; 
  padding: 32px 0; 
}

.footer-nav { 
  display: flex; 
  gap: 20px; 
}

.footer-nav a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--text);
}

.list {
  list-style: none;
  padding-left: 0;
}

.list li {
  position: relative;
  padding-left: 24px;
  margin: 10px 0;
}

.list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: bold;
}

/* Responsive */
@media (max-width: 900px) {
  .grid.two { grid-template-columns: 1fr; }
  .grid.three { grid-template-columns: 1fr; }
  .nav { display: none; }
  .nav.is-open { 
    display: flex; 
    flex-direction: column; 
    position: absolute; 
    right: 20px; 
    top: 72px; 
    background: rgba(18, 25, 50, 0.95);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border); 
    border-radius: 16px; 
    padding: 16px; 
    box-shadow: var(--shadow-elevated);
    min-width: 200px;
  }
  .nav-toggle { display: inline-block; }
  .hero h1 { font-size: 36px; }
  .section { padding: 60px 0; }
  .card { padding: 24px; }
  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}