:root {
    --bg-dark: #07090e;
    --bg-surface: #0f141f;
    --bg-card: rgba(18, 25, 38, 0.7);
    --bg-card-hover: rgba(26, 35, 53, 0.85);
    
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --primary: #0284c7;
    --primary-glow: rgba(2, 132, 199, 0.4);
    
    --cyan: #38bdf8;
    --emerald: #10b981;
    --crimson: #ef4444;
    --gold: #f59e0b;
    
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(56, 189, 248, 0.3);
    
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Grids & Radar Glows */
.radar-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.04) 0%, transparent 60%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    pointer-events: none;
    z-index: -2;
}

.glow-sphere {
    position: fixed;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: -1;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: rgba(2, 132, 199, 0.12);
    top: -100px;
    right: -100px;
}

.glow-2 {
    width: 600px;
    height: 600px;
    background: rgba(16, 185, 129, 0.07);
    bottom: 10%;
    left: -150px;
}

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

.max-w-800 { max-w: 800px; max-width: 800px; }
.max-w-600 { max-width: 600px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }
.text-cyan { color: var(--cyan); }
.text-emerald { color: var(--emerald); }
.text-crimson { color: var(--crimson); }
.text-gold { color: var(--gold); }
.text-dim { color: var(--text-dim) !important; }
.font-mono { font-family: var(--font-mono); }
.mb-3 { margin-bottom: 16px; }

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(7, 9, 14, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 0.5px;
}

.brand-badge {
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--cyan);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--text-main);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.tag-free {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: var(--emerald);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
    color: white;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border);
    color: var(--text-main);
}

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

.btn-lg {
    padding: 14px 28px;
    font-size: 1.05rem;
    border-radius: var(--radius-md);
}

/* Hero Section */
.hero {
    padding: 80px 0 60px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}

.kicker-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: var(--cyan);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 30px;
    margin-bottom: 24px;
}

.pulse-radar {
    width: 8px;
    height: 8px;
    background: var(--cyan);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.7);
    animation: radar-pulse 2s infinite;
}

@keyframes radar-pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(56, 189, 248, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
}

.hero-title {
    font-size: clamp(2.3rem, 4.5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1.12rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 32px;
}

.hero-desc strong {
    color: var(--text-main);
}

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

.hero-metrics {
    display: flex;
    align-items: center;
    gap: 24px;
    background: rgba(18, 25, 38, 0.4);
    border: 1px solid var(--border);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    width: fit-content;
}

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

.metric-val {
    font-size: 1.4rem;
    font-weight: 800;
    font-family: var(--font-mono);
}

.metric-lbl {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

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

/* Flight HUD Preview Card */
.flight-hud-card {
    background: var(--bg-surface);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
}

.hud-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 14px;
    margin-bottom: 18px;
}

.hud-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

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

.hud-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--cyan);
    background: rgba(56, 189, 248, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.hud-telemetry-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 18px;
}

.hud-cell {
    background: rgba(7, 9, 14, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hud-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hud-value {
    font-size: 0.95rem;
    font-weight: 600;
}

.verdict-banner {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(6, 78, 59, 0.3) 100%);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: var(--radius-md);
    padding: 14px;
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 16px;
}

.verdict-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.verdict-info h4 {
    font-size: 0.85rem;
    color: var(--emerald);
    font-weight: 800;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.verdict-info p {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.hud-footer {
    text-align: center;
}

.hud-btn-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--cyan);
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
}

.hud-btn-link:hover {
    color: #7dd3fc;
}

/* Sections General */
.section {
    padding: 90px 0;
}

.bg-alt {
    background: rgba(15, 20, 31, 0.4);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-head {
    margin-bottom: 56px;
}

.section-kicker {
    display: inline-block;
    color: var(--cyan);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

.section-head h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}

.section-head p {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto;
}

/* 4 Pillars Grid */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.pillar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    transition: all 0.3s;
    backdrop-filter: blur(8px);
}

.pillar-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
}

.pillar-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.pillar-number {
    position: absolute;
    top: 28px;
    right: 32px;
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.06);
}

.card-emerald .pillar-icon { background: rgba(16, 185, 129, 0.12); color: var(--emerald); }
.card-emerald:hover { border-color: rgba(16, 185, 129, 0.4); }

.card-crimson .pillar-icon { background: rgba(239, 68, 68, 0.12); color: var(--crimson); }
.card-crimson:hover { border-color: rgba(239, 68, 68, 0.4); }

.card-cyan .pillar-icon { background: rgba(56, 189, 248, 0.12); color: var(--cyan); }
.card-cyan:hover { border-color: rgba(56, 189, 248, 0.4); }

.card-gold .pillar-icon { background: rgba(245, 158, 11, 0.12); color: var(--gold); }
.card-gold:hover { border-color: rgba(245, 158, 11, 0.4); }

.pillar-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.pillar-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.65;
    margin-bottom: 20px;
}

.pillar-highlight {
    background: rgba(7, 9, 14, 0.6);
    border-left: 3px solid var(--border);
    padding: 8px 12px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-main);
}

.card-emerald .pillar-highlight { border-left-color: var(--emerald); }
.card-crimson .pillar-highlight { border-left-color: var(--crimson); }
.card-cyan .pillar-highlight { border-left-color: var(--cyan); }
.card-gold .pillar-highlight { border-left-color: var(--gold); }

/* Fleet Grid */
.fleet-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.fleet-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: all 0.2s;
}

.fleet-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.fleet-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--cyan);
    background: rgba(56, 189, 248, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.fleet-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.fleet-card p {
    color: var(--text-dim);
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Dossier Grid */
.dossier-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.dossier-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 28px;
}

.dossier-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.dossier-item svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
}

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

.dossier-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* PDF Mockup */
.pdf-mockup-card {
    background: #ffffff;
    color: #1e293b;
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    font-size: 0.85rem;
    line-height: 1.5;
    position: relative;
}

.pdf-tag {
    position: absolute;
    top: -12px;
    right: 20px;
    background: #0284c7;
    color: white;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.pdf-header-sim {
    display: flex;
    justify-content: space-between;
    border-bottom: 2px solid #0f172a;
    padding-bottom: 10px;
    margin-bottom: 16px;
}

.pdf-logo-sim {
    font-weight: 800;
    color: #0f172a;
    font-size: 0.95rem;
}

.pdf-code-sim {
    font-family: var(--font-mono);
    color: #64748b;
    font-size: 0.8rem;
}

.pdf-line-sim {
    margin-bottom: 8px;
    color: #334155;
}

.pdf-line-sim.bold {
    font-weight: 800;
    color: #0f172a;
}

.pdf-box-sim {
    background: #f8fafc;
    border: 1px solid #cbd5e1;
    border-left: 4px solid #10b981;
    padding: 10px 14px;
    margin: 14px 0;
    border-radius: 4px;
}

.pdf-box-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: #64748b;
}

.pdf-box-val {
    font-weight: 800;
    color: #047857;
    font-size: 0.9rem;
}

.pdf-table-sim {
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 16px;
}

.pdf-row-sim {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 1px solid #e2e8f0;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.pdf-row-sim:last-child {
    border-bottom: none;
    background: #f8fafc;
}

.pdf-footer-sim {
    font-size: 0.72rem;
    color: #94a3b8;
    text-align: center;
    border-top: 1px solid #e2e8f0;
    padding-top: 10px;
}

/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.2s;
}

.faq-card.open {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.faq-q {
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.faq-q h4 {
    font-size: 1.05rem;
    font-weight: 600;
}

.faq-q svg {
    transition: transform 0.3s;
    color: var(--text-dim);
}

.faq-card.open .faq-q svg {
    transform: rotate(180deg);
    color: var(--cyan);
}

.faq-a {
    display: none;
    padding: 0 24px 20px;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.faq-card.open .faq-a {
    display: block;
}

/* CTA Final */
.cta-final {
    background: radial-gradient(circle at 50% 50%, rgba(2, 132, 199, 0.15) 0%, transparent 70%);
}

.cta-final h2 {
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
}

/* Footer */
.footer {
    background: #040508;
    border-top: 1px solid var(--border);
    padding: 48px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 32px;
}

.footer-brand {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    display: inline-block;
    margin-bottom: 6px;
}

.footer-left p {
    color: var(--text-dim);
    font-size: 0.88rem;
}

.footer-copy {
    margin-top: 12px;
    font-size: 0.8rem;
    color: #475569;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links h5 {
    color: var(--text-main);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.2s;
}

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

/* Responsive */
@media (max-width: 992px) {
    .hero-grid { grid-template-columns: 1fr; }
    .pillars-grid { grid-template-columns: 1fr; }
    .fleet-grid { grid-template-columns: repeat(2, 1fr); }
    .dossier-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .mobile-toggle { display: block; }
    .fleet-grid { grid-template-columns: 1fr; }
    .hero-metrics { width: 100%; justify-content: space-around; }
}