/* ============================================
   مؤسسة النجاح الشامل - Design System
   Saudi identity + premium industrial aesthetic
   ============================================ */

:root {
  --teal-950: #0a2622;
  --teal-900: #0f342e;
  --teal-800: #14453c;
  --teal-700: #1a5a4d;
  --teal-600: #21715f;
  --teal-500: #2d8a73;
  --teal-400: #3ea888;
  --teal-300: #6ec4a8;
  --teal-200: #a8dcc9;
  --teal-100: #d9f0e6;
  --teal-50: #f0f9f5;
  --gold-500: #b8935a;
  --gold-400: #cdab7c;
  --gold-300: #e0c69e;
  --sand-50: #faf7f0;
  --sand-100: #f3ecdd;
  --ink-900: #0b1512;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Tajawal', 'Almarai', sans-serif;
  overflow-x: hidden;
}

.font-display {
  font-family: 'Tajawal', sans-serif;
}

/* ============ Scrollbar ============ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--sand-50); }
::-webkit-scrollbar-thumb { background: var(--teal-600); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--teal-700); }

/* ============ Saudi Geometric Pattern ============ */
.sadu-pattern {
  background-image:
    repeating-linear-gradient(45deg, rgba(184,147,90,0.06) 0, rgba(184,147,90,0.06) 2px, transparent 2px, transparent 14px),
    repeating-linear-gradient(-45deg, rgba(45,138,115,0.06) 0, rgba(45,138,115,0.06) 2px, transparent 2px, transparent 14px);
}

.geo-divider {
  height: 6px;
  background: linear-gradient(90deg,
    var(--teal-700) 0%, var(--teal-700) 20%,
    var(--gold-500) 20%, var(--gold-500) 24%,
    var(--teal-700) 24%, var(--teal-700) 44%,
    var(--gold-500) 44%, var(--gold-500) 48%,
    var(--teal-700) 48%, var(--teal-700) 68%,
    var(--gold-500) 68%, var(--gold-500) 72%,
    var(--teal-700) 72%, var(--teal-700) 100%);
}

/* Diamond / Sadu inspired corner motif */
.sadu-corner {
  position: absolute;
  width: 40px;
  height: 40px;
  border-top: 3px solid var(--gold-500);
  border-inline-end: 3px solid var(--gold-500);
  opacity: 0.85;
  border-start-end-radius: 12px;
}

/* ============ Hero ============ */
.hero-gradient {
  background: linear-gradient(120deg, rgba(10,38,34,0.94) 0%, rgba(15,52,46,0.88) 45%, rgba(26,90,77,0.75) 100%);
}

.hero-bg {
  background-image: url('/static/images/hero-bg.webp');
  background-size: cover;
  background-position: center;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
.float-anim { animation: floatY 6s ease-in-out infinite; }

@keyframes pulseSlow {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.08); }
}
.pulse-slow { animation: pulseSlow 4s ease-in-out infinite; }

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.shimmer-text {
  background: linear-gradient(90deg, var(--gold-300) 0%, #fff 25%, var(--gold-300) 50%, #fff 75%, var(--gold-300) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 5s linear infinite;
}

/* ============ Buttons ============ */
.btn-primary {
  background: linear-gradient(135deg, var(--teal-600), var(--teal-700));
  color: #fff;
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
  box-shadow: 0 8px 24px -8px rgba(20,69,60,0.5);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px -8px rgba(20,69,60,0.65);
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-500));
  color: #1a2b26;
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
}
.btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px -8px rgba(184,147,90,0.55);
}
.btn-outline-light {
  border: 1.5px solid rgba(255,255,255,0.5);
  color: #fff;
  backdrop-filter: blur(6px);
  transition: all 0.3s ease;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

/* ============ Cards ============ */
.card-hover {
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1), box-shadow 0.4s ease;
}
.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px -16px rgba(15,52,46,0.25);
}

.product-card {
  position: relative;
  border-radius: 1.25rem;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(15,52,46,0.08);
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0; left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--teal-500), var(--gold-500));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s ease;
}
.product-card:hover::before { transform: scaleX(1); }

.img-zoom { overflow: hidden; }
.img-zoom img { transition: transform 0.7s cubic-bezier(0.4,0,0.2,1); }
.img-zoom:hover img { transform: scale(1.08); }

/* ============ Stat counters ============ */
.stat-number {
  font-weight: 800;
  background: linear-gradient(135deg, var(--teal-600), var(--gold-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ============ Timeline ============ */
.timeline-line {
  background: linear-gradient(180deg, var(--teal-200), var(--teal-600), var(--gold-500));
}
.timeline-dot {
  box-shadow: 0 0 0 5px #fff, 0 0 0 8px var(--teal-200);
}

/* ============ Section headers ============ */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.1rem;
  border-radius: 999px;
  background: var(--teal-50);
  color: var(--teal-700);
  font-weight: 700;
  font-size: 0.85rem;
  border: 1px solid var(--teal-200);
}
.section-badge.dark {
  background: rgba(255,255,255,0.1);
  color: var(--gold-300);
  border-color: rgba(255,255,255,0.15);
}

.underline-accent {
  position: relative;
  display: inline-block;
}
.underline-accent::after {
  content: '';
  position: absolute;
  bottom: -10px;
  right: 0;
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--gold-500), var(--teal-500));
  border-radius: 4px;
}
.underline-accent.center::after { right: 50%; transform: translateX(50%); }

/* ============ Certificates ============ */
.cert-card {
  background: linear-gradient(145deg, #fff, var(--sand-50));
  border: 1px solid rgba(184,147,90,0.25);
}

/* ============ Tabs ============ */
.tab-btn {
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
}
.tab-btn.active {
  color: var(--teal-700);
  border-bottom-color: var(--gold-500);
}

/* ============ Accordion ============ */
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4,0,0.2,1);
}
.accordion-content.open {
  max-height: 2000px;
}
.accordion-icon {
  transition: transform 0.35s ease;
}
.accordion-icon.rotated {
  transform: rotate(180deg);
}

/* ============ Nav ============ */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: 0;
  width: 0;
  height: 2px;
  background: var(--gold-500);
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

#main-header {
  transition: all 0.4s ease;
}
#main-header.scrolled {
  background: rgba(10,38,34,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}

/* ============ Back to top ============ */
#back-to-top {
  transition: all 0.3s ease;
}

/* ============ Fade animations (fallback for AOS) ============ */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
}
[data-aos].aos-animate {
  opacity: 1;
}

/* ============ WhatsApp floating button ============ */
.whatsapp-float {
  animation: pulseWA 2.4s infinite;
}
@keyframes pulseWA {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,0.55); }
  70% { box-shadow: 0 0 0 14px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

/* ============ Table styling ============ */
.spec-table th, .spec-table td {
  border: 1px solid rgba(15,52,46,0.12);
}
.spec-table thead th {
  background: linear-gradient(135deg, var(--teal-700), var(--teal-600));
  color: #fff;
}
.spec-table tbody tr:nth-child(even) { background: var(--teal-50); }

/* Marquee for logos/certs */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.marquee-track {
  animation: marquee 30s linear infinite;
}

/* Loader */
.loader-bar {
  background: linear-gradient(90deg, var(--teal-600), var(--gold-500), var(--teal-600));
  background-size: 200% auto;
  animation: shimmer 1.6s linear infinite;
}

/* Utility */
.text-teal-950 { color: var(--teal-950); }
.bg-teal-950 { background-color: var(--teal-950); }
.mask-fade-b {
  -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}