/* Nabd theme: deep green + golden yellow, ECG pulse, RTL */
:root {
  --nabd-green: #1a3c34;
  --nabd-green-light: #2d5a4e;
  --nabd-green-5: rgba(26, 60, 52, 0.05);
  --nabd-green-10: rgba(26, 60, 52, 0.1);
  --nabd-gold: #c9a227;
  --nabd-gold-light: #D4A017;
  --nabd-gold-10: rgba(201, 162, 39, 0.1);
  --nabd-gold-20: rgba(201, 162, 39, 0.2);
  --nabd-white: #fafafa;
  --nabd-dark: #0f2924;
}

/* Arabic: Saudi-appropriate font (Tajawal) */
[dir="rtl"],
[lang="ar"] {
  font-family: 'Tajawal', 'Segoe UI', sans-serif;
}

/* English: modern sans */
[dir="ltr"]:not([lang="ar"]) {
  font-family: 'Plus Jakarta Sans', 'Outfit', system-ui, sans-serif;
}

/* ECG / pulse line animation */
.nabd-ecg-line {
  stroke: var(--nabd-gold);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@keyframes nabd-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.nabd-pulse {
  animation: nabd-pulse 2s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .nabd-pulse {
    animation: none;
  }
}

/* Back to top */
.nabd-scroll-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--nabd-green) 0%, var(--nabd-green-light) 100%);
  color: var(--nabd-gold);
  border: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s, transform 0.25s ease;
  box-shadow: 0 4px 20px rgba(26, 60, 52, 0.3);
  z-index: 50;
}

[dir="rtl"] .nabd-scroll-top {
  right: auto;
  left: 1.5rem;
}

.nabd-scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.nabd-scroll-top:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 6px 28px rgba(26, 60, 52, 0.4);
}

/* Modern card hover lift */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.25s ease;
}
.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(26, 60, 52, 0.1);
}

/* Glass morphism utility */
.glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.glass-dark {
  background: rgba(26, 60, 52, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Gradient text */
.text-gradient {
  background: linear-gradient(135deg, var(--nabd-gold) 0%, #d4af37 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Shadow utilities */
.shadow-sm { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04); }
.shadow { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); }
.shadow-lg { box-shadow: 0 10px 28px rgba(0, 0, 0, 0.12); }
.shadow-nabd-gold { box-shadow: 0 8px 24px var(--nabd-gold-20); }
.shadow-nabd-green { box-shadow: 0 8px 24px rgba(26, 60, 52, 0.15); }

/* Badge styles */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.badge-gold {
  background: var(--nabd-gold-10);
  color: var(--nabd-gold);
}

.badge-green {
  background: var(--nabd-green-5);
  color: var(--nabd-green);
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Link underline animation */
.link-underline {
  position: relative;
}
.link-underline::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--nabd-gold);
  transition: width 0.25s ease;
}
[dir="rtl"] .link-underline::after {
  left: auto;
  right: 0;
}
.link-underline:hover::after {
  width: 100%;
}

/* Focus visible improvements */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--nabd-gold-20);
  border-color: var(--nabd-gold) !important;
}

/* Modern gradient backgrounds */
.bg-gradient-nabd {
  background: linear-gradient(135deg, var(--nabd-green) 0%, var(--nabd-dark) 100%);
}

.bg-gradient-gold {
  background: linear-gradient(135deg, var(--nabd-gold) 0%, var(--nabd-gold-light) 100%);
}

/* Breadcrumb styles */
.nabd-breadcrumb {
  position: relative;
  background-size: cover;
  background-position: center;
}

/* Drop shadow utilities */
.drop-shadow-sm { filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1)); }
.drop-shadow-lg { filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.15)); }
.drop-shadow-xl { filter: drop-shadow(0 12px 32px rgba(0, 0, 0, 0.2)); }

/* ECG line class fix */
.nabd-ecg-line {
  stroke: var(--nabd-gold);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}