:root {
  --bg-primary: #081c15;
  --bg-secondary: #0f2a21;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.05);
  --border-glow: rgba(34, 197, 94, 0.2);
  
  --accent-primary: #22c55e;
  --accent-secondary: #4ade80;
  --accent-highlight: #facc15;
  
  --text-primary: #ecfdf5;
  --text-secondary: #bbf7d0;
  --text-muted: #6ee7b7;
  
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  
  --font-main: 'Poppins', sans-serif;
  --font-alt: 'Inter', sans-serif;
  
  --spacing-section: 120px;
  --max-width: 1320px;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
}

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

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  letter-spacing: -1px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

p {
  color: var(--text-secondary);
  font-family: var(--font-alt);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

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

/* Layout System */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: var(--spacing-section) 0;
  position: relative;
  z-index: 1;
}

/* Glass Nature Nav */
.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(8, 28, 21, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  transition: all 0.4s ease;
}

.glass-nav.scrolled {
  background: rgba(8, 28, 21, 0.85);
  border-bottom: 1px solid var(--border-glow);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.brand-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-logo::after {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-secondary);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--accent-secondary);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 101;
}

.mobile-toggle span {
  width: 30px;
  height: 2px;
  background: var(--text-primary);
  transition: 0.3s;
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  font-family: var(--font-main);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  box-shadow: 0 4px 15px rgba(34, 197, 94, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(74, 222, 128, 0.4);
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-glow);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  background: var(--surface);
  border-color: var(--accent-secondary);
  transform: translateY(-2px);
}

.btn-group {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

/* Hero Immersive Entry */
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  min-height: 100vh;
  padding-top: 80px;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-visual {
  position: relative;
  height: 80vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform 10s linear;
}

.hero-visual:hover img {
  transform: scale(1);
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--bg-primary) 0%, transparent 40%, rgba(8, 28, 21, 0.4) 100%);
}

/* Glass Panels & Experience Cards */
.glass-panel {
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 3rem;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.glass-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.glass-panel:hover {
  background: var(--surface-hover);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.glass-panel:hover::before {
  opacity: 1;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4rem;
  align-items: center;
}

/* Core Experience Showcase */
.showcase-section {
  position: relative;
}

.showcase-container {
  display: flex;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.showcase-image {
  flex: 1;
  position: relative;
}

.showcase-image img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  border-radius: 0;
}

.showcase-content {
  flex: 1;
  padding: 5rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Ambient Background Elements */
.ambient-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.ambient-top-right {
  top: -10%;
  right: -10%;
}

.ambient-bottom-left {
  bottom: -10%;
  left: -10%;
}

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  padding: 6rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-col h4 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.footer-col p, .footer-col a {
  color: var(--text-muted);
  font-family: var(--font-alt);
  font-size: 0.95rem;
  margin-bottom: 0.8rem;
  display: block;
  transition: color 0.3s ease;
}

.footer-col a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-glass);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-legal a {
  margin-left: 1.5rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.form-control {
  width: 100%;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border-glass);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-alt);
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-secondary);
  background: rgba(0,0,0,0.4);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* Standard Page Headers */
.page-header {
  padding: 180px 0 80px;
  text-align: center;
  background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-primary));
  border-bottom: 1px solid var(--border-glass);
  position: relative;
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header p {
  max-width: 600px;
  margin: 0 auto;
}

/* Utilities */
.text-center { text-align: center; }
.mb-2 { margin-bottom: 2rem; }
.mt-4 { margin-top: 4rem; }
.highlight { color: var(--accent-highlight); }