/* ============================================
   Spatialize Systems — The Future Is Composable
   ============================================ */

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

:root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #0f172a;
    --text-dim: #475569;
    --text-light: #64748b;
    --border: #e2e8f0;
    --accent: #14b8a6;
    --accent-dark: #0f766e;
    --accent-light: #d1fae5;
    --accent-bg: #ecfdf5;
    --warm: #f59e0b;
    --warm-light: #fef3c7;
    --warm-bg: #fffbeb;
    --primary: #0ea5e9;
    --primary-light: #e0f2fe;
    --primary-bg: #eff6ff;
    --purple: #a855f7;
    --purple-light: #f3e8ff;
    --purple-bg: #faf5ff;
    --rose: #f43f5e;
    --rose-light: #ffe4e6;
    --rose-bg: #fff1f2;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.02);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

svg { max-width: 100%; max-height: 100%; flex-shrink: 0; }

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226,232,240,0.6);
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 1.25rem;
}

.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition);
}
.nav-links a:hover { color: var(--accent-dark); }

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; }

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}
.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(14,165,233,0.25);
}
.btn-primary:hover {
    background: #0284c7;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(14,165,233,0.3);
}
.btn-secondary {
    background: white;
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
    border-color: var(--primary);
    color: #0284c7;
}

/* ============================================
   Hero — Ideological Lead
   ============================================ */

.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
    background: linear-gradient(180deg, #f0f9ff 0%, #f8fafc 50%, #ffffff 100%);
}
.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}
.gradient-mesh {
    position: absolute;
    top: -20%; right: -10%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(14,165,233,0.08) 0%, transparent 70%);
    border-radius: 50%;
}
.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 32px;
    align-items: center;
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 520px;
}

.hero-title {
    font-size: 3.4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.035em;
    color: var(--text);
    margin-bottom: 20px;
}
.hero-title .title-line {
    display: block;
}
.hero-title .highlight {
    color: var(--primary);
    position: relative;
    display: inline-block;
}
.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 12px;
    background: linear-gradient(90deg, rgba(14,165,233,0.15) 0%, rgba(14,165,233,0.05) 100%);
    border-radius: 4px;
    z-index: -1;
}

.hero-manifesto {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.4;
    margin-bottom: 24px;
    font-style: italic;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 480px;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-illustration {
    width: 100%;
    max-width: 640px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.06));
}

/* ============================================
   Section Headers
   ============================================ */

.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
    display: inline-block;
    padding: 5px 14px;
    background: var(--primary-light);
    color: #0369a1;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-radius: 999px;
    margin-bottom: 16px;
}
.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 12px;
}
.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-dim);
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================
   Manifesto Section — Problem & Vision
   ============================================ */

.manifesto-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.manifesto-layout {
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    gap: 56px;
    align-items: start;
}

.manifesto-divider {
    background: var(--border);
    width: 1px;
    height: 100%;
    min-height: 400px;
}

.manifesto-col h2 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 36px;
    margin-top: 16px;
    line-height: 1.3;
}

.manifesto-points {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.point {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.point-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.point-icon svg { width: 20px; height: 20px; }

.point-text h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}

.point-text p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.6;
}

/* ============================================
   Platform Section
   ============================================ */

.platform-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

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

.platform-card {
    padding: 28px;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.platform-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: transparent;
}

.platform-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.platform-icon svg { width: 22px; height: 22px; }

.platform-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.platform-card p {
    font-size: 0.88rem;
    color: var(--text-dim);
    line-height: 1.55;
}

/* ============================================
   Surfaces Section
   ============================================ */

.surfaces-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.surfaces-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.surface-card {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 28px;
    padding: 32px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    align-items: center;
}

.surface-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
    border-color: transparent;
}

.surface-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.surface-visual svg {
    width: 100%;
    max-width: 140px;
    height: auto;
}

.surface-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.surface-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    width: fit-content;
}

.surface-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
}

.surface-tagline {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-dim);
    font-style: italic;
}

.surface-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.6;
}

.surface-specs {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.surface-specs .spec {
    padding: 5px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-dim);
}

/* ============================================
   Product Detail Sections
   ============================================ */

.product-detail { padding: 80px 0; }
.product-detail-geosurvey { background: linear-gradient(180deg, #ffffff 0%, #ecfdf5 100%); }
.product-detail-geoinfo    { background: linear-gradient(180deg, #ffffff 0%, #eff6ff 100%); }

.product-detail-header { text-align: center; margin-bottom: 56px; }
.product-detail-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}
.product-detail-header h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.product-detail-header > p {
    font-size: 1.05rem;
    color: var(--text-dim);
    max-width: 520px;
    margin: 0 auto;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.feature-item {
    padding: 28px;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
}
.feature-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: transparent;
}

.feature-item .feature-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.feature-item .feature-icon svg { width: 22px; height: 22px; }

/* GeoSurvey icon colors */
.product-detail-geosurvey .feature-item:nth-child(1) .feature-icon { background: var(--accent-bg); color: var(--accent); }
.product-detail-geosurvey .feature-item:nth-child(2) .feature-icon { background: var(--warm-bg); color: var(--warm); }
.product-detail-geosurvey .feature-item:nth-child(3) .feature-icon { background: var(--primary-bg); color: var(--primary); }
.product-detail-geosurvey .feature-item:nth-child(4) .feature-icon { background: var(--purple-bg); color: var(--purple); }
.product-detail-geosurvey .feature-item:nth-child(5) .feature-icon { background: var(--rose-bg); color: var(--rose); }
.product-detail-geosurvey .feature-item:nth-child(6) .feature-icon { background: var(--accent-bg); color: var(--accent); }

/* GeoInfo icon colors */
.product-detail-geoinfo .feature-item:nth-child(1) .feature-icon { background: var(--primary-bg); color: var(--primary); }
.product-detail-geoinfo .feature-item:nth-child(2) .feature-icon { background: var(--accent-bg); color: var(--accent); }
.product-detail-geoinfo .feature-item:nth-child(3) .feature-icon { background: var(--purple-bg); color: var(--purple); }
.product-detail-geoinfo .feature-item:nth-child(4) .feature-icon { background: var(--rose-bg); color: var(--rose); }
.product-detail-geoinfo .feature-item:nth-child(5) .feature-icon { background: var(--warm-bg); color: var(--warm); }
.product-detail-geoinfo .feature-item:nth-child(6) .feature-icon { background: var(--accent-bg); color: var(--accent); }

.feature-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}
.feature-item p {
    font-size: 0.88rem;
    color: var(--text-dim);
    line-height: 1.55;
}

/* Product meta */
.product-meta {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
    flex-wrap: wrap;
}
.meta-tag {
    padding: 6px 14px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-dim);
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
    padding: 80px 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
}
.contact-content { max-width: 720px; margin: 0 auto; }
.contact-info .section-title { text-align: left; margin-bottom: 12px; }
.contact-info .section-tag { margin-bottom: 12px; }
.contact-description {
    font-size: 1.05rem;
    color: var(--text-dim);
    margin-bottom: 36px;
}
.contact-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}
.contact-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--text-dim);
}
.contact-icon svg { width: 20px; height: 20px; }
.contact-text { display: flex; flex-direction: column; gap: 2px; }
.contact-label {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
}
.contact-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    text-decoration: none;
}
.contact-value:hover { color: var(--primary); }

/* ============================================
   Footer
   ============================================ */

.footer {
    padding: 48px 0 32px;
    background: var(--text);
    color: var(--text-light);
}
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 24px;
}
.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 6px;
}
.logo-text-footer {
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
}
.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition);
}
.footer-links a:hover { color: white; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.4);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 900px) {
    .manifesto-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .manifesto-divider {
        display: none;
    }
    .platform-grid { grid-template-columns: 1fr; }
    .surfaces-grid { grid-template-columns: 1fr; }
    .surface-card { grid-template-columns: 1fr; text-align: center; }
    .surface-visual { order: -1; }
    .surface-visual svg { max-width: 120px; }
    .surface-specs { justify-content: center; }
    .feature-grid { grid-template-columns: 1fr; }
    .hero-layout { grid-template-columns: 1fr; }
    .hero-visual { order: -1; }
    .hero-illustration { max-width: 400px; }
    .hero-title { font-size: 2.6rem; }
    .hero { padding: 130px 0 70px; }
    .contact-details { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .nav-mobile-toggle { display: flex; }
}

@media (max-width: 600px) {
    .hero-title { font-size: 2.1rem; }
    .hero-manifesto { font-size: 1.2rem; }
    .section-title { font-size: 1.7rem; }
    .hero-cta { flex-direction: column; }
    .btn { width: 100%; }
    .platform-card { padding: 22px; }
    .surface-card { padding: 24px; }
    .feature-item { padding: 22px; }
    .manifesto-col h2 { font-size: 1.35rem; }
}

.nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(16px);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}