/* OrbitGuard Landing Page - NOIR Aesthetic */

:root {
    /* NOIR Color Tokens */
    --bg-primary: #000000;
    --bg-secondary: #080808;
    --bg-elevated: #101010;
    --bg-hover: #181818;
    --text-primary: #FFFFFF;
    --text-secondary: #999999;
    --text-muted: #555555;
    --accent: #FF6B35;
    --accent-dim: rgba(255,107,53,0.15);
    --accent-glow: rgba(255,107,53,0.25);
    --border: rgba(255,255,255,0.06);
    --success: #00FF88;
    --error: #FF3366;
    --warning: #FFB800;

    /* Typography */
    --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --container-max: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */

.section-title {
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--text-primary);
}

.mono {
    font-family: var(--font-mono);
    font-size: 0.875em;
}

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

/* Hero Section */

.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: var(--bg-primary);
    padding: var(--spacing-lg) 0;
    padding-top: env(safe-area-inset-top, 0);
    position: relative;
    overflow: hidden;
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 200;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    line-height: 0.9;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

.hero-subtext {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.6;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 1rem 2.5rem;
    background-color: transparent;
    color: var(--accent);
    text-decoration: none;
    border: 1px solid var(--accent);
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 200ms ease;
    border-radius: 2px;
}

.cta-button:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 20px var(--accent-glow);
}

.cta-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    box-shadow: 0 0 12px var(--accent-glow);
}

/* Live Data Section */

.live-data {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    padding: var(--spacing-md);
    text-align: center;
    border-radius: 2px;
    transition: border-color 200ms ease;
}

.stat-card:hover {
    border-color: rgba(255,255,255,0.12);
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.closest-approach {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
}

.approach-detail {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.threat-table {
    margin-top: var(--spacing-lg);
}

.table-title {
    font-size: 1rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-align: left;
    font-weight: 500;
}

.table-container {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 2px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr 2fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border);
    min-height: 48px;
    align-items: center;
}

.table-row:last-child {
    border-bottom: none;
}

.table-header {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 500;
}

.table-cell {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
}

/* Problem Section */

.problem {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border);
}

.problem-statement {
    font-size: 1.5rem;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
    font-weight: 400;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.problem-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: var(--spacing-lg);
    border-radius: 2px;
}

.problem-card-title {
    font-size: 1.125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.problem-card-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

.solution-statement {
    font-size: 1.75rem;
    text-align: center;
    color: var(--accent);
    margin-top: var(--spacing-lg);
    letter-spacing: -0.02em;
    font-weight: 500;
}

/* Pricing Section */

.product {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border);
}

.pricing-grid,
.pricing-single {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
    gap: var(--spacing-md);
}

.pricing-card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    padding: var(--spacing-lg);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    transition: border-color 200ms ease;
}

.pricing-card:hover {
    border-color: rgba(255,255,255,0.12);
}

.pricing-featured {
    border-color: var(--accent);
}

.pricing-featured:hover {
    border-color: var(--accent);
    box-shadow: 0 0 30px var(--accent-glow);
}

.pricing-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.pricing-tier {
    font-size: 1.125rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.pricing-price {
    font-family: var(--font-mono);
    font-size: 3rem;
    color: var(--text-primary);
    font-weight: 500;
}

.pricing-period {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.pricing-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.5;
}

.pricing-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.pricing-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.875rem 1rem;
    background-color: transparent;
    color: var(--accent);
    text-decoration: none;
    border: 1px solid var(--accent);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 200ms ease;
    border-radius: 2px;
    font-size: 0.875rem;
}

.pricing-cta:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 16px var(--accent-glow);
}

.pricing-cta:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.pricing-featured .pricing-cta {
    background-color: var(--accent);
    color: var(--bg-primary);
    font-weight: 500;
}

.pricing-featured .pricing-cta:hover {
    box-shadow: 0 0 24px var(--accent-glow);
}

/* Tech Section */

.tech {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border);
}

.tech-content {
    max-width: 700px;
    margin: 0 auto;
}

.tech-block {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.tech-statement {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
}

.tech-detail {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tech-link {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.link-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.875rem 2.5rem;
    background-color: transparent;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border);
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 200ms ease;
    border-radius: 2px;
}

.link-button:hover {
    border-color: var(--text-primary);
    box-shadow: 0 0 10px rgba(255,255,255,0.1);
}

.link-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Footer */

.footer {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg) 0;
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom, 0));
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-logo {
    font-size: 1.25rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 120ms ease;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
}

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

.footer-links a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.footer-attribution {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
}

/* Responsive — Tablet */
@media (max-width: 900px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

    .problem-grid {
        grid-template-columns: 1fr;
    }
}

/* Responsive — Mobile */
@media (max-width: 600px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero {
        min-height: 85vh;
        min-height: 85dvh;
    }

    .hero-title {
        font-size: clamp(2.5rem, 12vw, 3.5rem);
    }

    .section-title {
        font-size: 1.25rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-sm);
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .table-row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
        padding: var(--spacing-sm);
    }

    .table-header {
        display: none;
    }

    .table-cell {
        font-size: 0.8125rem;
    }

    .table-cell::before {
        content: attr(data-label);
        font-weight: 500;
        color: var(--text-muted);
        display: block;
        font-size: 0.6875rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        margin-bottom: 0.125rem;
    }

    .pricing-price {
        font-size: 2.5rem;
    }

    .problem-statement {
        font-size: 1.25rem;
    }

    .solution-statement {
        font-size: 1.5rem;
    }

    .tech-statement {
        font-size: 1.25rem;
    }

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

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 400px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}