/* ============================================
   IMPORTS
   ============================================ */

@import url('variables.css');
@import url('components.css');
@import url('animations.css');

/* ============================================
   RESET & BASE STYLES
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-primary);
  scroll-behavior: smooth;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

html, body {
  scroll-padding-top: 0;
}

body {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  line-height: var(--line-height-normal);
  font-size: var(--font-size-base);
  font-weight: var(--font-body-weight);
  letter-spacing: var(--font-body-spacing);
  position: relative;
}

/* Radial glow overlay behind hero section (top-left origin) */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: radial-gradient(circle at 0% 0%, 
    rgba(119, 141, 169, 0.15) 0%, 
    rgba(65, 90, 119, 0.1) 30%, 
    transparent 60%);
  pointer-events: none;
  z-index: 0;
  will-change: opacity;
}

/* ============================================
   NAVIGATION - Modern Glassmorphic Navbar
   ============================================ */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 27, 42, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.navbar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 4px;
  width: calc(var(--scroll-progress, 0) * 1%);
  max-width: 100%;
  min-width: 0;
  background: var(--gradient-gold);
  transform-origin: left center;
  transition: width 0.1s ease-out, opacity 0.2s ease-out;
  z-index: 1001;
  will-change: width;
  transform: translateZ(0);
  /* Hide until JS initializes to prevent flash */
  opacity: 0;
  pointer-events: none;
}

/* Show progress bar after JS initialization */
.js-loaded .navbar::before {
  opacity: 1;
}

.navbar.scrolled {
  background: rgba(13, 27, 42, 0.95);
  box-shadow: var(--shadow-md);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-logo {
  display: flex;
  align-items: center;
  height: 60px;
  transition: transform var(--transition-fast);
}

.navbar-logo:hover {
  transform: scale(1.05);
}

.navbar-logo img {
  max-height: 250px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 10px rgba(255, 206, 0, 0.5));
  animation: logo-glow 3s ease-in-out infinite;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  position: relative;
  transition: all var(--transition-fast);
  transform-style: preserve-3d;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-gold);
  transition: width var(--transition-base);
  transform-origin: left;
}

.nav-link:hover {
  color: var(--color-gold-200);
  transform: translateY(-2px);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--color-gold-200);
}

.nav-link.active::after {
  width: 100%;
  animation: underline-pulse 2s ease-in-out infinite;
}

/* Mobile Menu Toggle Button */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  z-index: 1002;
  transition: transform var(--transition-fast);
}

.navbar-toggle:hover {
  transform: scale(1.1);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.navbar-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.navbar-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.navbar-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu Overlay */
.navbar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 27, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 998;
}

.navbar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Mobile Menu Styles */
@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }
  
  .navbar-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(13, 27, 42, 0.98);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    flex-direction: column;
    padding: var(--spacing-xl);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
    z-index: 999;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .navbar-menu.active {
    transform: translateY(0);
  }
  
  .navbar-menu li {
    opacity: 0;
    transform: translateX(-20px);
    transition: all var(--transition-base);
  }
  
  .navbar-menu.active li {
    opacity: 1;
    transform: translateX(0);
  }
  
  .navbar-menu.active li:nth-child(1) { 
    transition-delay: 0.1s; 
  }
  
  .navbar-menu.active li:nth-child(2) { 
    transition-delay: 0.2s; 
  }
  
  .navbar-menu.active li:nth-child(3) { 
    transition-delay: 0.3s; 
  }
  
  .nav-link {
    display: block;
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-lg);
  }
  
  .nav-link::after {
    bottom: 0;
  }
}

/* ============================================
   HEADER / HERO - Enhanced with Multi-layer Orbs
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  overflow: hidden;
  perspective: var(--perspective-lg);
  z-index: 1;
}

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

/* Multi-layer Gradient Orbs */
.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  animation: float-orb 25s ease-in-out infinite;
  mix-blend-mode: screen;
  will-change: transform;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: var(--gradient-orb-gold);
  top: 5%;
  left: 5%;
  animation-duration: 20s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: var(--gradient-orb-blue);
  bottom: 10%;
  right: 10%;
  animation-duration: 25s;
  animation-delay: -5s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 206, 0, 0.3), transparent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-duration: 30s;
  animation-delay: -10s;
}

/* Particle System (CSS-only) */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(2px 2px at 20% 30%, rgba(255, 206, 0, 0.3), transparent),
    radial-gradient(2px 2px at 60% 70%, rgba(74, 144, 164, 0.3), transparent),
    radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.2), transparent);
  background-size: 200% 200%;
  animation: particle-float 20s linear infinite;
  opacity: 0.6;
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  transform-style: preserve-3d;
  will-change: transform;
}

.hero-title {
  font-size: var(--font-size-hero);
  font-weight: var(--font-heading-weight);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-tight);
}

.gradient-text {
  background: var(--gradient-gold-text);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s ease-in-out infinite;
  display: inline-block;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: var(--line-height-relaxed);
}

.hero-tagline {
  opacity: 0.85;
  font-size: var(--font-size-lg);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

/* Responsive Hero */
@media (max-width: 768px) {
  .hero {
    min-height: 90vh;
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .orb-1 {
    width: 300px;
    height: 300px;
  }
  
  .orb-2 {
    width: 250px;
    height: 250px;
  }
  
  .orb-3 {
    width: 200px;
    height: 200px;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }
}

/* ============================================
   SECTIONS (Using component classes)
   ============================================ */

section {
  padding: var(--spacing-3xl) var(--spacing-lg);
  text-align: center;
}

section h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-heading-weight);
  letter-spacing: var(--font-heading-spacing);
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-primary);
}

/* ============================================
   CARDS (Using component classes - enhanced styles in components.css)
   ============================================ */

.card:hover {
  transform: scale(1.05);
  background: var(--glass-heavy);
}

/* ============================================
   FOOTER (Modern footer styles in components.css)
   ============================================ */

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  header h1 { 
    font-size: var(--font-size-4xl); 
  }
  
  .card { 
    width: 90%; 
    max-width: 100%;
  }
}