/* ============================================
   STARLINK BONDING - Premium Tech Aesthetic
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2332;
    --bg-card-hover: #222d3f;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-primary: #00d4ff;
    --accent-secondary: #0099cc;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #0066ff 100%);
    --success: #10b981;
    --warning: #f59e0b;
    --border-color: rgba(148, 163, 184, 0.1);
    --border-glow: rgba(0, 212, 255, 0.2);
    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --section-padding: 100px 0;
    --container-width: 1200px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
::selection { background: var(--accent-primary); color: var(--bg-primary); }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.5rem, 6vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
p { color: var(--text-secondary); font-size: 1.1rem; }
a { color: var(--accent-primary); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--text-primary); }

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-normal);
}
.nav.scrolled {
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}
.nav-logo svg { width: 40px; height: 40px; }
.nav-logo .highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition-fast);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
}
.btn-primary {
    background: var(--accent-gradient);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
    color: var(--bg-primary);
}
.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    border-color: var(--accent-primary);
    background: rgba(0, 212, 255, 0.05);
    color: var(--accent-primary);
}
.btn-large { padding: 18px 36px; font-size: 1.1rem; }

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: -1; }
.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}
.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.15) 0%, transparent 70%);
    animation: pulse 10s ease-in-out infinite reverse;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}
.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 50%, black 40%, transparent 100%);
}
.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-text { animation: fadeInUp 0.8s ease-out; }
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: 24px;
}
.hero h1 { margin-bottom: 24px; }
.hero h1 .highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-description { font-size: 1.25rem; margin-bottom: 32px; max-width: 540px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}
.hero-diagram {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    position: relative;
}
.hero-diagram::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 16px;
    padding: 1px;
    background: var(--accent-gradient);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    -webkit-mask-composite: xor;
    opacity: 0.3;
}
.diagram-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
}
.diagram-sources {
    display: flex;
    justify-content: space-around;
    margin-bottom: 24px;
}
.diagram-source { text-align: center; }
.diagram-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
}
.diagram-icon svg { width: 24px; height: 24px; color: var(--accent-primary); }
.diagram-label { font-size: 0.75rem; color: var(--text-muted); }
.diagram-lines {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin-bottom: 24px;
}
.diagram-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
    position: relative;
}
.diagram-line::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: flowDown 1.5s ease-in-out infinite;
}
.diagram-line:nth-child(2)::after { animation-delay: 0.3s; }
.diagram-line:nth-child(3)::after { animation-delay: 0.6s; }
@keyframes flowDown {
    0% { transform: translateX(-50%) translateY(-40px); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(-50%) translateY(0); opacity: 0; }
}
.diagram-router {
    background: var(--accent-gradient);
    border-radius: 12px;
    padding: 16px 32px;
    text-align: center;
    margin: 0 auto 24px;
    max-width: 200px;
}
.diagram-router-label {
    font-weight: 600;
    color: var(--bg-primary);
    font-size: 0.9rem;
}
.diagram-output { text-align: center; }
.diagram-speed {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--success);
    margin-bottom: 4px;
}
.diagram-speed-label { font-size: 0.875rem; color: var(--text-muted); }

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-top: 80px;
}
.stat { text-align: center; }
.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}
.stat-label { font-size: 0.9rem; color: var(--text-muted); }

/* Section Styles */
.section { padding: var(--section-padding); }
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.15rem; }

/* Problem Section */
.problem { background: var(--bg-secondary); }
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition-normal);
}
.problem-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}
.problem-icon {
    width: 56px;
    height: 56px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.problem-icon svg { width: 28px; height: 28px; color: #ef4444; }
.problem-card h4 { margin-bottom: 12px; color: var(--text-primary); }
.problem-card p { font-size: 1rem; }

/* Solution Section */
.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.solution-text h2 { margin-bottom: 24px; }
.solution-text > p { margin-bottom: 32px; }
.solution-features { display: flex; flex-direction: column; gap: 20px; }
.solution-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.feature-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.feature-icon svg { width: 24px; height: 24px; color: var(--accent-primary); }
.feature-content h4 { margin-bottom: 4px; font-size: 1.1rem; }
.feature-content p { font-size: 0.95rem; }
.solution-visual {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
}
.comparison-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
    text-align: center;
}
.comparison-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}
.comparison-item:last-child { margin-bottom: 0; }
.comparison-label {
    width: 140px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.comparison-bar {
    flex: 1;
    height: 32px;
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
}
.comparison-fill {
    height: 100%;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 12px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
}
.comparison-fill.single {
    width: 25%;
    background: linear-gradient(90deg, #64748b 0%, #475569 100%);
    color: var(--text-primary);
}
.comparison-fill.bonded {
    width: 95%;
    background: var(--accent-gradient);
    color: var(--bg-primary);
}

/* How It Works */
.how-it-works { background: var(--bg-secondary); }
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.step {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: var(--transition-normal);
}
.step:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}
.step-number {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--bg-primary);
    margin: 0 auto 20px;
}
.step h4 { margin-bottom: 12px; }
.step p { font-size: 0.95rem; }

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition-normal);
}
.feature-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}
.feature-card-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.feature-card-icon svg { width: 28px; height: 28px; color: var(--accent-primary); }
.feature-card h4 { margin-bottom: 12px; }
.feature-card p { font-size: 0.95rem; }

/* Use Cases */
.use-cases { background: var(--bg-secondary); }
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.use-case {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    display: flex;
    gap: 24px;
    transition: var(--transition-normal);
}
.use-case:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}
.use-case-icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.use-case-icon svg { width: 32px; height: 32px; color: var(--accent-primary); }
.use-case h4 { margin-bottom: 8px; font-size: 1.25rem; }
.use-case p { font-size: 0.95rem; margin-bottom: 12px; }
.use-case-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.use-case-tag {
    padding: 4px 12px;
    background: var(--bg-secondary);
    border-radius: 100px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* CTA Section */
.cta {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}
.cta-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 102, 255, 0.05) 100%);
    z-index: -1;
}
.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}
.cta h2 { margin-bottom: 16px; }
.cta p { font-size: 1.2rem; margin-bottom: 32px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Contact Form */
.contact { background: var(--bg-secondary); }
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-info > p { margin-bottom: 32px; }
.contact-details { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.contact-icon svg { width: 24px; height: 24px; color: var(--accent-primary); }
.contact-item h4 { margin-bottom: 4px; font-size: 1rem; }
.contact-item p { font-size: 0.95rem; }
.contact-item a { color: var(--text-secondary); }
.contact-item a:hover { color: var(--accent-primary); }
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-secondary); }
.form-submit { width: 100%; margin-top: 8px; }

/* Footer */
.footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}
.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}
.footer-brand p {
    margin-top: 16px;
    font-size: 0.95rem;
    max-width: 300px;
}
.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}
.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.footer-links a:hover { color: var(--accent-primary); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}
.footer-bottom p {
    font-size: 0.9rem;
    color: var(--text-muted);
}
.footer-parent {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.footer-parent a { color: var(--accent-primary); }

/* Responsive */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-description { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-visual { max-width: 500px; margin: 0 auto; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .problem-grid { grid-template-columns: 1fr; }
    .solution-content { grid-template-columns: 1fr; }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: 1fr; }
    .use-cases-grid { grid-template-columns: 1fr; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .nav-cta .btn { display: none; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        gap: 16px;
    }
    .hero { padding: 100px 0 60px; }
    .stats { grid-template-columns: 1fr 1fr; gap: 24px; }
    .stat-value { font-size: 2rem; }
    .steps { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

/* Alert Messages */
.alert {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.95rem;
}
.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success);
}
.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}