:root {
  --bg-dark: #0a0e14;
  --bg-card: #121824;
  --bg-card-hover: #182234;
  --panel-dark: #0e1420;
  --accent-cyan: #00d2ff;
  --accent-red: #ff2a4b;
  --accent-blue: #2563eb;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --border-color: rgba(255, 255, 255, 0.09);
  --border-racing: rgba(0, 210, 255, 0.25);
  --glass-bg: rgba(14, 20, 32, 0.88);
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Orbitron', 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 210, 255, 0.06) 0%, transparent 60%),
    radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 24px 24px;
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  color: #ffffff;
  font-family: var(--font-heading);
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

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

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-container {
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.brand-logo-img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 12px rgba(0, 210, 255, 0.4);
}

.logo-icon {
  font-size: 1.4rem;
}

.logo-text .highlight {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: #ffffff;
}

.nav-btn-download {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #ffffff !important;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-size: 0.825rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.05em;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.nav-btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 210, 255, 0.4);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.25;
  pointer-events: none;
}

.hero-glow-1 {
  top: -100px;
  right: -100px;
  background: var(--accent-cyan);
}

.hero-glow-2 {
  bottom: -100px;
  left: -100px;
  background: var(--accent-red);
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(0, 210, 255, 0.12);
  border: 1px solid rgba(0, 210, 255, 0.35);
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  font-size: 0.775rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

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

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 210, 255, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 210, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 210, 255, 0); }
}

.hero-title {
  font-size: 3.1rem;
  line-height: 1.15;
  font-weight: 900;
  margin-bottom: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #ffffff;
  padding: 14px 28px;
  border-radius: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  box-shadow: 0 10px 25px rgba(0, 210, 255, 0.25);
  transition: all 0.25s ease;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(0, 210, 255, 0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

.hero-specs {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--font-mono);
}

.spec-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.spec-divider {
  width: 1px;
  height: 32px;
  background: var(--border-color);
}

/* Phone Frame Visual */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  position: relative;
  width: 310px;
  height: 640px;
  background: #000;
  border-radius: 40px;
  padding: 12px;
  border: 4px solid #2a3447;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 210, 255, 0.15);
  transition: transform 0.3s ease;
}

.phone-frame.glow-cyan {
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(0, 210, 255, 0.35);
}

.phone-frame.glow-blue {
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(37, 99, 235, 0.3);
}

.phone-frame.glow-green {
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(16, 185, 129, 0.3);
}

.phone-frame.glow-amber {
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(245, 158, 11, 0.3);
}

.phone-frame:hover {
  transform: translateY(-6px);
}

.phone-notch {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 18px;
  background: #000;
  border-radius: 10px;
  z-index: 10;
}

.phone-screen {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 30px;
  display: block;
}

/* Telemetry Bar */
.telemetry-bar {
  padding: 40px 0;
  background: rgba(18, 25, 39, 0.5);
  border-y: 1px solid var(--border-color);
}

.dashboard-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px 32px;
}

.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.dash-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  font-size: 0.95rem;
}

.dash-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--accent-green);
  font-weight: 600;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
}

.dash-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.metric-box {
  background: var(--panel-dark);
  padding: 16px 20px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 4px;
}

.metric-value-wrap {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.metric-value {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #ffffff;
}

.accent-amber {
  color: var(--accent-amber);
}

.accent-cyan {
  color: var(--accent-cyan);
}

.metric-unit {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 700;
}

/* Features Showcase Carousel Section */
.features-carousel-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-dark) 0%, #0c1424 50%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}

.features-tab-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.feature-tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.25s ease;
}

.feature-tab-btn:hover {
  color: #ffffff;
  border-color: rgba(0, 210, 255, 0.4);
  background: var(--bg-card-hover);
}

.feature-tab-btn.active {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.35);
}

.features-carousel-wrapper {
  position: relative;
  width: 100%;
}

.features-slides-container {
  display: flex;
  width: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none; /* Firefox */
  -webkit-overflow-scrolling: touch;
}

.features-slides-container::-webkit-scrollbar {
  display: none; /* Chrome/Safari/Edge */
}

.feature-slide {
  flex: 0 0 100%;
  width: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  padding: 10px 4px 30px;
  transition: opacity 0.3s ease;
}

.feature-split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.feature-split.reverse {
  grid-template-columns: 1.1fr 1fr;
}

.feature-split-visual {
  display: flex;
  justify-content: center;
}

.feature-split-content .section-tag {
  color: var(--accent-cyan);
  font-size: 0.825rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 12px;
}

.feature-split-content .section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.feature-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.feature-highlights-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.highlight-item {
  display: flex;
  gap: 16px;
  background: var(--bg-card);
  padding: 20px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.highlight-item:hover {
  transform: translateX(4px);
  border-color: rgba(0, 210, 255, 0.3);
}

.highlight-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.highlight-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.highlight-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Full Screenshots Carousel Section */
.screenshots-section {
  padding: 100px 0;
  background: rgba(18, 25, 39, 0.3);
}

.carousel-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.gallery-grid {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 12px 4px 24px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* Firefox */
}

.gallery-grid::-webkit-scrollbar {
  display: none; /* Chrome/Safari/Edge */
}

.gallery-card {
  flex: 0 0 260px;
  scroll-snap-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.gallery-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-cyan);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

/* Carousel Navigation Arrows */
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.25s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.carousel-arrow:hover {
  background: var(--accent-cyan);
  color: #000000;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.5);
}

.carousel-arrow svg {
  width: 24px;
  height: 24px;
}

.carousel-arrow-prev {
  left: -22px;
}

.carousel-arrow-next {
  right: -22px;
}

/* Carousel Indicator Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.carousel-dot.active {
  width: 28px;
  border-radius: 12px;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.gallery-image-wrap {
  position: relative;
  width: 100%;
  padding-top: 215%;
  background: #000;
}

.gallery-image-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-info {
  padding: 16px;
}

.gallery-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.gallery-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ROADMAP & TESTING BACKLOG STYLING */
.roadmap-section {
  padding: 100px 0;
  background: #080d16;
  border-bottom: 1px solid var(--border-color);
}

.roadmap-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px;
}

.margin-top-large {
  margin-top: 48px;
}

.roadmap-block-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.title-icon {
  font-size: 1.8rem;
}

.testing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.test-card {
  background: var(--panel-dark);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 24px;
  position: relative;
  transition: border-color 0.2s ease;
}

.test-card:hover {
  border-color: rgba(0, 210, 255, 0.4);
}

.test-status-badge {
  display: inline-block;
  font-size: 0.725rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
  margin-bottom: 12px;
}

.test-status-badge.completed {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border-color: rgba(16, 185, 129, 0.3);
}

.test-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.test-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.test-card code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

/* Timeline Styling */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  padding-left: 20px;
  border-left: 2px solid var(--border-color);
}

.timeline-item {
  position: relative;
  padding-left: 24px;
}

.timeline-marker {
  position: absolute;
  left: -27px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent-cyan);
}

.timeline-item.status-active .timeline-marker {
  background: var(--accent-green);
  border-color: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

.timeline-content {
  background: var(--panel-dark);
  border: 1px solid var(--border-color);
  padding: 20px 24px;
  border-radius: 14px;
}

.phase-tag {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 4px;
}

.timeline-item.status-active .phase-tag {
  color: var(--accent-green);
}

.timeline-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.timeline-content ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.timeline-content li {
  font-size: 0.9rem;
  color: var(--text-muted);
  position: relative;
}

/* Extended Roadmap Cards (Phases 11-16) */
.extended-phases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.extended-card {
  background: var(--panel-dark);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 14px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.extended-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 210, 255, 0.4);
}

.ext-badge {
  font-size: 0.725rem;
  font-weight: 800;
  color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 3px 8px;
  border-radius: 12px;
  display: inline-block;
  margin-bottom: 12px;
}

.extended-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.extended-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.extended-card code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

/* Download Section */
.download-section {
  padding: 100px 0;
}

.download-card {
  position: relative;
  background: linear-gradient(135deg, #121d33, #0b1324);
  border: 1px solid rgba(0, 210, 255, 0.2);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  overflow: hidden;
}

.download-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: var(--accent-cyan);
  filter: blur(150px);
  opacity: 0.15;
  pointer-events: none;
}

.badge-download {
  color: var(--accent-cyan);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: inline-block;
}

.download-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.download-desc {
  max-width: 600px;
  margin: 0 auto 36px;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.download-actions {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.btn-large {
  padding: 18px 36px;
  font-size: 1.1rem;
}

.download-note {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  background: var(--bg-dark);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 4px;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.9);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  padding: 20px;
}

.lightbox.active {
  display: flex;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
}

#lightbox-img {
  max-width: 90%;
  max-height: 90vh;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
}

/* Mobile Hamburger Button */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.hamburger-bar {
  width: 100%;
  height: 3px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

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

.nav-toggle.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .hamburger-bar:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Comprehensive Mobile & Responsive Breakpoints */
@media (max-width: 1100px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 32px 24px;
    gap: 20px;
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease-in-out;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: 1.1rem;
    width: 100%;
    text-align: center;
  }

  .nav-btn-download {
    margin-top: 8px;
    text-align: center;
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .feature-split,
  .feature-split.reverse {
    display: flex;
    flex-direction: column;
    text-align: center;
    gap: 40px;
  }

  .feature-split-content {
    order: 1;
  }

  .feature-split-visual {
    order: 2;
  }

  .hero-subtitle,
  .feature-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-specs {
    justify-content: center;
  }

  .dash-metrics {
    grid-template-columns: 1fr;
  }

  .highlight-item {
    text-align: left;
  }

  .roadmap-block {
    padding: 24px 16px;
  }

  .testing-grid,
  .extended-phases-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .section-container {
    padding: 0 16px;
  }

  .features-carousel-section {
    padding: 60px 0 40px;
  }

  .features-tab-bar {
    gap: 8px;
    margin-bottom: 24px;
  }

  .feature-tab-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .feature-split,
  .feature-split.reverse {
    gap: 20px;
  }

  .feature-split-content .section-title {
    font-size: 1.6rem;
    margin-bottom: 12px;
  }

  .feature-desc {
    font-size: 0.925rem;
    margin-bottom: 20px;
  }

  .feature-highlights-grid {
    gap: 12px;
  }

  .highlight-item {
    padding: 12px 14px;
    gap: 12px;
  }

  .highlight-icon {
    font-size: 1.4rem;
  }

  .highlight-item h4 {
    font-size: 0.95rem;
  }

  .highlight-item p {
    font-size: 0.825rem;
  }

  .carousel-arrow {
    width: 36px;
    height: 36px;
  }

  .carousel-arrow-prev {
    left: 4px;
  }

  .carousel-arrow-next {
    right: 4px;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-title {
    font-size: 2.1rem;
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .phone-frame {
    width: 100%;
    max-width: 220px;
    height: 450px;
    padding: 8px;
    border-radius: 30px;
  }

  .phone-screen {
    border-radius: 22px;
  }

  .hero-specs {
    flex-direction: column;
    gap: 16px;
  }

  .spec-divider {
    width: 40px;
    height: 1px;
  }

  .download-card {
    padding: 40px 20px;
  }

  .download-title {
    font-size: 2rem;
  }

  .btn-large {
    width: 100%;
    justify-content: center;
    padding: 16px 20px;
    font-size: 0.95rem;
  }

  .download-note {
    flex-direction: column;
    gap: 6px;
  }

  .footer-container {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand .brand-logo {
    justify-content: center;
  }
}