/* ============================================================
   ONE XCLUSIVE TRAINING — Global Design System
   Premium Dark + Gold Theme
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,700&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand Colors */
  --gold: rgb(212, 175, 55);
  --gold-light: rgb(232, 205, 105);
  --gold-dark: rgb(170, 140, 40);
  --gold-glow: rgba(212, 175, 55, 0.35);
  --gold-subtle: rgba(212, 175, 55, 0.08);
  --gold-10: rgba(212, 175, 55, 0.1);
  --gold-20: rgba(212, 175, 55, 0.2);
  --gold-50: rgba(212, 175, 55, 0.5);

  /* Neutrals */
  --black: #000000;
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-card: #141414;
  --bg-card-hover: #1e1e1e;
  --border-subtle: rgba(212, 175, 55, 0.12);
  --border-medium: rgba(212, 175, 55, 0.25);
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #707070;
  --white-10: rgba(255, 255, 255, 0.1);
  --white-05: rgba(255, 255, 255, 0.05);

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --section-padding: clamp(80px, 10vw, 140px);
  --container-width: 1280px;
  --container-narrow: 900px;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: 0.25s var(--ease-out-expo);
  --transition-med: 0.5s var(--ease-out-expo);
  --transition-slow: 0.8s var(--ease-out-expo);

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-dark) var(--bg-primary);
}

html::-webkit-scrollbar {
  width: 8px;
}

html::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

html::-webkit-scrollbar-thumb {
  background: var(--gold-dark);
  border-radius: 4px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.015em;
}

h3 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
}

h4 {
  font-size: clamp(1.1rem, 1.5vw, 1.4rem);
}

p {
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--text-secondary);
  max-width: 70ch;
}

.gold-text {
  color: var(--gold);
}

.gradient-text {
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.container-narrow {
  max-width: var(--container-narrow);
}

section {
  padding: var(--section-padding) 0;
  position: relative;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 40px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  transition: transform 0.4s var(--ease-out-expo);
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--bg-primary);
  border: 1px solid var(--gold);
  box-shadow: 0 4px 24px var(--gold-glow), inset 0 1px 0 rgba(255,255,255,0.15);
}

.btn-primary::before {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  transform: translateY(100%);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px var(--gold-glow), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-primary:hover::before {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--border-medium);
}

.btn-secondary::before {
  background: var(--gold-10);
  transform: translateY(100%);
}

.btn-secondary:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.btn-secondary:hover::before {
  transform: translateY(0);
}

.btn-arrow::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------- Section Headers ---------- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.section-label::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.section-header {
  margin-bottom: 60px;
}

.section-header h2 {
  margin-bottom: 20px;
}

.section-header p {
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
}

/* ---------- Cards (Glassmorphism) ---------- */
.glass-card {
  background: rgba(20, 20, 20, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 40px;
  transition: all var(--transition-med);
}

.glass-card:hover {
  border-color: var(--gold-20);
  background: rgba(30, 30, 30, 0.7);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px var(--gold-subtle);
}

/* ---------- Dividers ---------- */
.gold-divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  margin: 24px 0;
}

.full-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

/* ============================================================
   HEADER / NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: all 0.4s ease;
}

.site-header.scrolled {
  padding: 12px 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1001;
}

.logo img {
  height: 72px;
  width: auto;
  transition: height 0.4s ease;
}

.site-header.scrolled .logo img {
  height: 56px;
}

/* Desktop Navigation */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-desktop a {
  position: relative;
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  border-radius: var(--radius-sm);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 18px;
  right: 18px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out-expo);
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--gold);
}

.nav-desktop a:hover::after,
.nav-desktop a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  margin-left: 16px;
}

.nav-cta .btn {
  padding: 10px 24px;
  font-size: 0.8rem;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--gold);
  border-radius: 1px;
  transition: all 0.35s var(--ease-out-expo);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Navigation */
.nav-mobile {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s var(--ease-out-expo);
}

.nav-mobile.active {
  opacity: 1;
  visibility: visible;
}

.nav-mobile a {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  color: var(--text-secondary);
  padding: 12px 0;
  transition: all 0.3s ease;
  transform: translateY(20px);
  opacity: 0;
}

.nav-mobile.active a {
  transform: translateY(0);
  opacity: 1;
}

.nav-mobile a:nth-child(1) { transition-delay: 0.1s; }
.nav-mobile a:nth-child(2) { transition-delay: 0.15s; }
.nav-mobile a:nth-child(3) { transition-delay: 0.2s; }
.nav-mobile a:nth-child(4) { transition-delay: 0.25s; }
.nav-mobile a:nth-child(5) { transition-delay: 0.3s; }
.nav-mobile a:nth-child(6) { transition-delay: 0.35s; }
.nav-mobile a:nth-child(7) { transition-delay: 0.4s; }

.nav-mobile a:hover,
.nav-mobile a.active {
  color: var(--gold);
}

.nav-mobile .mobile-cta {
  margin-top: 30px;
  transform: translateY(20px);
  opacity: 0;
  transition-delay: 0.45s;
}

.nav-mobile.active .mobile-cta {
  transform: translateY(0);
  opacity: 1;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 0;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand p {
  margin-top: 20px;
  font-size: 0.9rem;
  max-width: 300px;
}

.footer-brand .logo img {
  height: 45px;
}

.footer-heading {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
}

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--gold);
  padding-left: 8px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: var(--gold-10);
  transform: translateY(-2px);
}

.footer-social a svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--gold);
  transition: opacity var(--transition-fast);
}

.footer-bottom a:hover {
  opacity: 0.8;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s var(--ease-out-expo);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: all 0.8s var(--ease-out-expo);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: all 0.8s var(--ease-out-expo);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s var(--ease-out-expo);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s !important; }
.stagger-2 { transition-delay: 0.2s !important; }
.stagger-3 { transition-delay: 0.25s !important; }
.stagger-4 { transition-delay: 0.3s !important; }
.stagger-5 { transition-delay: 0.35s !important; }
.stagger-6 { transition-delay: 0.4s !important; }

/* Floating animation */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Pulse glow */
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 4px 24px var(--gold-glow); }
  50% { box-shadow: 0 8px 50px rgba(212, 175, 55, 0.5); }
}

/* Gradient shift */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Shimmer */
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Spin slow */
@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Gold line draw */
@keyframes lineGrow {
  from { width: 0; }
  to { width: 60px; }
}

/* Page load animation */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 9999;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.6s ease 0.2s;
}

.page-transition.loaded {
  opacity: 0;
}

/* ============================================================
   HERO COMMON STYLES
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img,
.hero-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0, 0, 0, 0.85) 0%,
    rgba(0, 0, 0, 0.6) 40%,
    rgba(10, 10, 10, 0.7) 100%
  );
  z-index: 1;
}

.hero-overlay::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--bg-primary), transparent);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding-top: 100px;
}

.hero-content .section-label {
  margin-bottom: 24px;
}

.hero-content h1 {
  margin-bottom: 28px;
}

.hero-content p {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  margin-bottom: 40px;
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Gold particles on hero */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.hero-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 8s infinite ease-in-out;
}

@keyframes particleFloat {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0);
  }
  20% {
    opacity: 0.6;
  }
  80% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: translateY(-20vh) scale(1);
  }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.6;
  animation: float 2s ease-in-out infinite;
}

.scroll-indicator .scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  position: relative;
  overflow: hidden;
}

.scroll-indicator .scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gold-light);
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { top: -100%; }
  100% { top: 100%; }
}

/* ============================================================
   CTA SECTIONS
   ============================================================ */
.cta-section {
  position: relative;
  padding: var(--section-padding) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, var(--gold-subtle) 0%, transparent 50%);
  animation: spinSlow 30s linear infinite;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  margin-bottom: 24px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section p {
  margin: 0 auto 40px;
  text-align: center;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-desktop, .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    min-height: 100svh;
  }

  .hero-content {
    padding-top: 120px;
    padding-bottom: 60px;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
    text-align: center;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .btn {
    padding: 14px 32px;
    font-size: 0.88rem;
  }

  section {
    padding: clamp(60px, 8vw, 100px) 0;
  }

  .section-header {
    margin-bottom: 40px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: clamp(2rem, 7vw, 2.8rem);
  }

  h2 {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
  }

  .glass-card {
    padding: 28px;
  }
}