:root {
  --bg-primary: #070a11;
  --bg-secondary: #0d131f;
  --bg-card: rgba(16, 24, 40, 0.75);
  --bg-card-hover: rgba(22, 34, 56, 0.9);
  --border-color: rgba(0, 240, 255, 0.18);
  --border-glow: rgba(0, 240, 255, 0.45);
  
  --accent-cyan: #00f0ff;
  --accent-cyan-glow: rgba(0, 240, 255, 0.25);
  --accent-emerald: #00ffaa;
  --accent-emerald-glow: rgba(0, 255, 170, 0.25);
  --accent-amber: #ffb700;
  --accent-rose: #ff3366;
  
  --text-primary: #f0f6fc;
  --text-secondary: #8b9bb4;
  --text-muted: #56657a;
  
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-color);
  --shadow-glow: 0 0 25px var(--accent-cyan-glow);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 240, 255, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(0, 255, 170, 0.04) 0%, transparent 45%);
  background-attachment: fixed;
}

/* Glassmorphism utility */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.glass:hover {
  border-color: var(--border-glow);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 2rem;
  background: rgba(7, 10, 17, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-badge {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-emerald));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 900;
  color: #000;
  font-size: 1.2rem;
  box-shadow: 0 0 15px var(--accent-cyan-glow);
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}

.brand-text p {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #00a2ff);
  color: #050b14;
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: 30px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(0, 240, 255, 0.5);
  color: #000;
}

.btn-outline {
  background: rgba(0, 240, 255, 0.05);
  color: var(--accent-cyan);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.4rem;
  border-radius: 30px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  text-decoration: none;
}

.btn-outline:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: #fff;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 8rem 2rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: linear-gradient(180deg, rgba(7, 10, 17, 0.4) 0%, rgba(7, 10, 17, 0.95) 100%),
              url('assets/aerial_masterplan.jpg') center/cover no-repeat;
  border-bottom: 1px solid var(--border-color);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, rgba(0, 240, 255, 0.12) 0%, rgba(7, 10, 17, 0.9) 75%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 1100px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 30px;
  background: rgba(0, 255, 170, 0.1);
  border: 1px solid rgba(0, 255, 170, 0.3);
  color: var(--accent-emerald);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
  100% { opacity: 1; transform: scale(1); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.2rem;
  letter-spacing: -1px;
}

.hero-title span {
  background: linear-gradient(135deg, var(--accent-cyan) 20%, var(--accent-emerald) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 2.5rem;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.2rem;
  width: 100%;
  max-width: 1000px;
  margin-top: 1.5rem;
}

.stat-box {
  padding: 1.4rem 1rem;
  text-align: center;
  background: rgba(13, 19, 31, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
}

.stat-box .val {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-box .val.cyan { color: var(--accent-cyan); text-shadow: 0 0 15px var(--accent-cyan-glow); }
.stat-box .val.emerald { color: var(--accent-emerald); text-shadow: 0 0 15px var(--accent-emerald-glow); }
.stat-box .val.amber { color: var(--accent-amber); }

.stat-box .lbl {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* Sections General */
.section {
  padding: 6rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: #fff;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0.8rem auto 0;
}

/* Zone Interactive Map */
.zone-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 992px) {
  .zone-grid { grid-template-columns: 1fr; }
}

.map-container {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
}

.map-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.map-hotspot {
  position: absolute;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.3);
  border: 2px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  cursor: pointer;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 15px var(--accent-cyan);
  transition: var(--transition);
  animation: pulse 2.5s infinite;
}

.map-hotspot:hover, .map-hotspot.active {
  transform: translate(-50%, -50%) scale(1.25);
  background: var(--accent-cyan);
  color: #000;
  z-index: 20;
}

.zone-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.zone-card {
  padding: 1.2rem 1.5rem;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: var(--transition);
}

.zone-card:hover, .zone-card.active {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.06);
  transform: translateX(6px);
}

.zone-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.zone-card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.zone-badge {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  font-weight: 600;
}

.zone-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Media & Video Showcase */
.media-tabs {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.media-tab-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.6rem 1.4rem;
  border-radius: 30px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.media-tab-btn:hover, .media-tab-btn.active {
  background: var(--accent-cyan);
  color: #000;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--accent-cyan-glow);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
}

.media-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.media-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-cyan);
  box-shadow: 0 15px 35px -10px rgba(0, 240, 255, 0.25);
}

.media-preview {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  overflow: hidden;
}

.media-preview img, .media-preview iframe {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: none;
}

.media-info {
  padding: 1.5rem;
}

.media-tag {
  color: var(--accent-emerald);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.4rem;
  display: block;
}

.media-heading {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.media-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Power Simulator */
.simulator-box {
  padding: 2.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

@media (max-width: 850px) {
  .simulator-box { grid-template-columns: 1fr; gap: 2rem; }
}

.control-group {
  margin-bottom: 2rem;
}

.control-label {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: #fff;
}

.control-label span.value {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
}

.slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 12px var(--accent-cyan);
  transition: var(--transition);
}

.calc-display-card {
  padding: 1.8rem;
  background: rgba(7, 10, 17, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-stat-row {
  display: flex;
  justify-content: space-between;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.calc-stat-row:last-child { border-bottom: none; }
.calc-stat-lbl { color: var(--text-secondary); font-size: 0.9rem; }
.calc-stat-val { font-family: var(--font-mono); font-weight: 700; color: #fff; }

/* Financial Waterfall */
.financial-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.fin-card {
  padding: 1.8rem;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.fin-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-emerald));
}

.fin-card-phase {
  color: var(--accent-cyan);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.4rem;
}

.fin-card-amount {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.6rem;
}

.fin-card-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 0.8rem;
  margin-top: 0.8rem;
}

/* Document Vault */
.doc-tabs {
  display: flex;
  gap: 0.8rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
  overflow-x: auto;
}

.doc-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.doc-tab:hover, .doc-tab.active {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  border-color: rgba(0, 240, 255, 0.25);
}

.doc-content-viewer {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #d1d5db;
  line-height: 1.7;
  max-height: 550px;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* Footer */
.footer {
  background: #04060a;
  border-top: 1px solid var(--border-color);
  padding: 4rem 2rem 2rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  max-width: 1300px;
  margin: 0 auto 3rem;
}

@media (max-width: 850px) {
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}

.footer-heading {
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8rem;
  color: var(--text-muted);
}