@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&display=swap');

:root {
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --gold-300: #E5C76B;
  --gold-400: #D4AF37;
  --gold-500: #C5A028;
  --slate-950: #020617;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --white: #f8fafc;
  --gradient-blue: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-gold: linear-gradient(135deg, #D4AF37, #E5C76B);
  --gradient-hero: linear-gradient(135deg, #020617 0%, #0f172a 50%, #1e293b 100%);
  --gradient-card: linear-gradient(135deg, rgba(30,41,59,0.8), rgba(15,23,42,0.6));
  --glass-bg: rgba(30, 41, 59, 0.6);
  --glass-border: rgba(148, 163, 184, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --font-body: 'Inter', sans-serif;
  --font-display: 'Playfair Display', serif;
  --section-gap: 120px;
  --container-max: 1280px;
  --container-narrow: 960px;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background: var(--slate-950);
  color: var(--slate-300);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--blue-500);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--blue-500);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: var(--slate-400);
  max-width: 640px;
}

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

.text-center .section-subtitle {
  margin: 0 auto;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.glass-card:hover {
  border-color: rgba(59, 130, 246, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-blue);
  color: white;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.45);
}

.btn-gold {
  background: var(--gradient-gold);
  color: var(--slate-950);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212, 175, 55, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.btn-outline:hover {
  border-color: var(--blue-500);
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

.gold-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(212, 175, 55, 0.05));
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: 100px;
  color: var(--gold-300);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.text-gradient {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.service-icon.blue {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.05));
  color: var(--blue-400);
}

.service-icon.gold {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(212, 175, 55, 0.05));
  color: var(--gold-300);
}

.service-icon.purple {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(139, 92, 246, 0.05));
  color: #a78bfa;
}

.service-icon.green {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(16, 185, 129, 0.05));
  color: #34d399;
}

/* Hero overlay gradient */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(2, 6, 23, 0.92) 0%,
    rgba(2, 6, 23, 0.7) 40%,
    rgba(15, 23, 42, 0.5) 70%,
    rgba(30, 41, 59, 0.3) 100%
  );
}

/* Image overlay for cards */
.img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 40%,
    rgba(2, 6, 23, 0.85) 100%
  );
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--slate-950);
}

::-webkit-scrollbar-thumb {
  background: var(--slate-700);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--slate-600);
}

/* Selection */
::selection {
  background: rgba(59, 130, 246, 0.3);
  color: var(--white);
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 2px;
}

/* Service tabs */
.tab-btn {
  padding: 12px 24px;
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 10px;
  color: var(--slate-400);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  border-color: rgba(59, 130, 246, 0.3);
  color: var(--slate-300);
}

.tab-btn.active {
  background: var(--gradient-blue);
  border-color: transparent;
  color: white;
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-content.active {
  display: block;
}

/* Timeline */
.timeline-line {
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--blue-500), rgba(59, 130, 246, 0.1));
}

.timeline-item {
  position: relative;
  padding-left: 72px;
  padding-bottom: 48px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 14px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--slate-800);
  border: 3px solid var(--blue-500);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.timeline-dot::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-500);
}

/* Gallery lightbox */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.95);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.1);
}

/* Accordion */
.accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  background: none;
  border: none;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: color 0.3s ease;
}

.accordion-btn:hover {
  color: var(--blue-400);
}

.accordion-btn .icon {
  font-size: 20px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.accordion-btn.open .icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.accordion-content.open {
  max-height: 300px;
}

.accordion-content > div {
  padding: 16px 0 24px;
  color: var(--slate-400);
  line-height: 1.7;
  font-size: 15px;
}

/* Back to top */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  color: var(--white);
  font-size: 18px;
  cursor: pointer;
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

#back-to-top:hover {
  border-color: var(--blue-500);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
  transform: translateY(-4px);
}

/* Counter */
.counter-value {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 700;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Lang toggle */
.lang-btn {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: var(--slate-400);
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-body);
}

.lang-btn:hover {
  border-color: var(--blue-500);
  color: var(--white);
}

.lang-btn.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--blue-500);
  color: var(--blue-400);
}

/* Mobile nav */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.95);
  backdrop-filter: blur(16px);
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-menu-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu-overlay a {
  font-size: 24px;
  font-weight: 500;
  color: var(--slate-400);
  padding: 12px;
  transition: color 0.3s ease;
}

.mobile-menu-overlay a:hover {
  color: var(--white);
}

/* Navbar glass on scroll */
.navbar-scrolled {
  background: rgba(2, 6, 23, 0.85) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid rgba(148, 163, 184, 0.08) !important;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3) !important;
}

/* Keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}