/* === Premium UI — VisionOS x PlayStation Blend === */

:root {
  --brand-primary: #5BC0F8;
  --brand-primary-soft: rgba(91, 192, 248, 0.15);
  --brand-primary-glow: rgba(91, 192, 248, 0.6);
  --bg-glass: rgba(255,255,255,0.45);
  --bg-glass-dark: rgba(15,20,30,0.55);
  --blur: blur(18px);
  --radius: 18px;
}

/* === NAVBAR (glass bar) === */
.navbar {
  background: var(--bg-glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid rgba(255,255,255,0.3);
}

/* Dark mode navbar */
[data-theme="dark"] .navbar {
  background: var(--bg-glass-dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

/* === SIDEBAR (glass + glow) === */
.sidebar {
  background: var(--bg-glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-right: 1px solid rgba(255,255,255,0.3);
}

[data-theme="dark"] .sidebar {
  background: var(--bg-glass-dark);
  border-right: 1px solid rgba(255,255,255,0.08);
}

/* Sidebar hover glow */
.sidebar a:hover {
  background: var(--brand-primary-soft);
  color: var(--brand-primary);
  text-shadow: 0 0 6px var(--brand-primary-glow);
}

/* === CARDS === */
.card, .container, .alert, .modal-content {
  border-radius: var(--radius);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  background: rgba(255,255,255,0.55);
  box-shadow: 0 4px 25px rgba(0,0,0,0.08);
  border: none;
}

[data-theme="dark"] .card,
[data-theme="dark"] .container,
[data-theme="dark"] .alert,
[data-theme="dark"] .modal-content {
  background: rgba(20,25,35,0.6);
}

/* === BUTTONS === */
.btn-primary {
  background: var(--brand-primary);
  border: none;
  border-radius: var(--radius);
  box-shadow: 0 0 10px var(--brand-primary-glow);
}

.btn-primary:hover {
  background: #4ab3f3;
  box-shadow: 0 0 15px var(--brand-primary-glow);
}

/* === PAGE TRANSITION === */
main {
  animation: fadeIn 0.35s ease;
}

@keyframes fadeIn {
  from { opacity: 0; translate: 0 4px; }
  to { opacity: 1; translate: 0 0; }
}