/* ============================================
   Frontrac Familia - Marketing Website
   Brand: Dark navy + Blue + Orange + Green
   Fonts: Orbitron (headings), Exo 2 (body)
   ============================================ */

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

:root {
    --blue: #1e7cd8;
    --blue-dark: #1562ad;
    --blue-light: #e8f2fc;
    --orange: #e67c2c;
    --orange-dark: #c96821;
    --orange-light: #fef3e8;
    --green: #57a849;
    --green-dark: #448a39;
    --green-light: #edf7eb;
    --amber: #FFB340;
    --dark: #0d1117;
    --dark-2: #161b22;
    --dark-3: #21262d;
    --dark-4: #30363d;
    --gray-100: #f6f8fa;
    --gray-200: #e6eaef;
    --gray-300: #d0d7de;
    --gray-400: #8b949e;
    --gray-500: #6e7681;
    --white: #ffffff;
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Exo 2', sans-serif;
    --max-width: 1200px;
    --nav-height: 80px;
    --transition: 0.3s ease;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-100);
    background: var(--dark);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--orange); }
img { max-width: 100%; height: auto; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.5px;
}
h1 { font-size: 3.2rem; }
h2 { font-size: 2.4rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.15rem; }

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    h3 { font-size: 1.25rem; }
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--dark-4);
    z-index: 1000;
}
.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.nav-logo img { height: 38px; width: auto; display: block; }
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}
.nav-links a {
    display: block;
    padding: 8px 14px;
    color: var(--gray-300);
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all var(--transition);
}
.nav-links a:hover, .nav-links a.active {
    color: var(--white);
    background: var(--dark-3);
}
.nav-cta {
    background: var(--blue) !important;
    color: var(--white) !important;
    font-weight: 600 !important;
    padding: 8px 20px !important;
    border-radius: 8px !important;
}
.nav-cta:hover { background: var(--blue-dark) !important; }
.nav-familia-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--orange);
    color: var(--dark);
    font-family: var(--font-heading);
    font-size: 0.55rem;
    font-weight: 700;
    padding: 0 10px;
    border-radius: 20px;
    margin-left: 10px;
    letter-spacing: 1.2px;
    height: 24px;
    line-height: 1;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 0;
    text-decoration: none;
}

/* Mobile nav */
.nav-mobile-menu { display: none; }
@media (max-width: 1024px) {
    .nav { backdrop-filter: none !important; background: var(--dark) !important; height: auto; min-height: 70px; }
    .nav-inner { height: auto; min-height: 70px; padding: 12px 16px; flex-wrap: wrap; }
    .nav-desktop { display: none !important; }
    .nav-mobile-menu { display: block; }
    .nav-hamburger {
        display: flex; align-items: center; justify-content: center;
        min-width: 48px; min-height: 48px; padding: 8px; cursor: pointer;
        list-style: none; color: var(--gray-300); background: var(--dark-3);
        border-radius: 8px; border: 1px solid var(--dark-4);
    }
    .nav-hamburger::-webkit-details-marker { display: none; }
    .nav-hamburger::marker { display: none; content: ""; }
    .nav-mobile-panel {
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--dark); border-bottom: 1px solid var(--dark-4);
        padding: 6px 12px 10px; max-height: 70vh; overflow-y: auto; z-index: 9999;
        display: flex; flex-direction: column; gap: 0;
        box-shadow: 0 12px 32px rgba(0,0,0,0.5);
    }
    .nav-mobile-panel a {
        display: block; padding: 10px 12px; color: var(--gray-300);
        font-size: 0.9rem; font-weight: 500; border-radius: 6px;
    }
    .nav-mobile-panel a:active { background: var(--dark-3); color: var(--white); }
    .nav-mobile-cta {
        background: var(--blue) !important; color: var(--white) !important;
        text-align: center; font-weight: 600 !important; margin-top: 6px;
        border-radius: 8px !important; padding: 12px !important;
    }
}

/* --- Buttons --- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 32px; border-radius: var(--radius-sm); font-family: var(--font-body);
    font-size: 1rem; font-weight: 600; border: none; cursor: pointer;
    transition: all var(--transition); text-decoration: none;
}
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--blue-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,124,216,0.3); }
.btn-secondary { background: transparent; color: var(--gray-100); border: 2px solid var(--dark-4); }
.btn-secondary:hover { border-color: var(--gray-400); color: var(--white); transform: translateY(-2px); }
.btn-orange { background: var(--orange); color: var(--white); }
.btn-orange:hover { background: var(--orange-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,124,44,0.3); }
.btn-lg { padding: 18px 40px; font-size: 1.1rem; border-radius: var(--radius); }
.btn-sm { padding: 10px 20px; font-size: 0.88rem; }

/* --- Hero --- */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-2) 50%, var(--dark) 100%);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(30,124,216,0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: center;
    position: relative;
}
.hero-badge {
    display: inline-block;
    background: rgba(30,124,216,0.15);
    color: var(--blue);
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid rgba(30,124,216,0.3);
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}
.hero h1 { margin-bottom: 20px; }
.hero h1 .highlight { color: var(--blue); }
.hero h1 .highlight-orange { color: var(--orange); }
.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray-400);
    margin-bottom: 32px;
    max-width: 520px;
    line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image {
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-image-wrap {
    padding: 20px;
    display: inline-block;
}
[data-theme="light"] .hero-image-wrap {
}
.hero-image img {
    max-width: 900px;
    width: 100%;
    border-radius: var(--radius);
    filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5));
}
.hero-stats {
    display: flex; gap: 40px; margin-top: 40px;
}
.hero-stat { text-align: left; }
.hero-stat-number {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--white);
}
.hero-stat-label {
    font-size: 0.82rem;
    color: var(--gray-400);
    margin-top: 2px;
}
@media (max-width: 768px) {
    .hero { padding: 120px 0 60px; }
    .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-image img { max-width: 100%; }
    .hero-image-wrap { padding: 30px; }
    .hero-stats { justify-content: center; gap: 24px; }
    .hero-stat { text-align: center; }
}

/* --- Sections --- */
.section { padding: 100px 0; }
.section-alt { background: var(--dark-2); }
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}
.section-header p {
    color: var(--gray-400);
    font-size: 1.05rem;
    margin-top: 16px;
    line-height: 1.7;
}
.section-label {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--blue);
    margin-bottom: 12px;
}
.section-label-orange { color: var(--orange); }
.section-label-green { color: var(--green); }

/* --- Feature Grid --- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: var(--radius);
    padding: 32px;
    transition: all var(--transition);
}
.section-alt .feature-card { background: var(--dark-3); }
.feature-card:hover {
    border-color: var(--blue);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}
.feature-icon {
    width: 48px; height: 48px;
    background: rgba(30,124,216,0.12);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 20px;
}
.feature-icon-orange { background: rgba(230,124,44,0.12); }
.feature-icon-green { background: rgba(87,168,73,0.12); }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { color: var(--gray-400); font-size: 0.92rem; line-height: 1.6; }

@media (max-width: 768px) {
    .feature-grid { grid-template-columns: 1fr; }
}
@media (min-width: 769px) and (max-width: 1024px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

/* --- How It Works --- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    counter-reset: step;
}
.step {
    text-align: center;
    padding: 40px 24px;
    position: relative;
}
.step-number {
    width: 56px; height: 56px;
    background: var(--blue);
    color: var(--white);
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
}
.step h3 { font-size: 1.1rem; margin-bottom: 10px; }
.step p { color: var(--gray-400); font-size: 0.92rem; }
@media (max-width: 768px) {
    .steps { grid-template-columns: 1fr; }
}

/* --- Scenario Cards --- */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.scenario-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: var(--radius);
    padding: 32px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.section-alt .scenario-card { background: var(--dark-3); }
.scenario-card:hover {
    border-color: rgba(230,124,44,0.4);
    transform: translateY(-2px);
}
.scenario-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
}
.scenario-card-problem::before { background: linear-gradient(90deg, #dc3545, transparent); }
.scenario-card-solution::before { background: linear-gradient(90deg, var(--green), transparent); }
.scenario-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
}
.scenario-tag-problem { background: rgba(220,53,69,0.15); color: #f87171; }
.scenario-tag-solution { background: rgba(87,168,73,0.15); color: #6ee7b7; }
.scenario-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.scenario-card p { color: var(--gray-400); font-size: 0.92rem; line-height: 1.65; }
.scenario-detail {
    margin-top: 16px;
    padding: 16px;
    background: var(--dark-3);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--blue);
}
.section-alt .scenario-detail { background: rgba(13,17,23,0.5); }
.scenario-detail p { font-size: 0.88rem; color: var(--gray-300); }

@media (max-width: 768px) {
    .scenario-grid { grid-template-columns: 1fr; }
}

/* --- Scenario Full Page --- */
.scenario-full {
    padding: 40px 0;
    border-bottom: 1px solid var(--dark-4);
}
.scenario-full:last-child { border-bottom: none; }
.scenario-full-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
}
.scenario-full-icon {
    width: 56px; height: 56px; min-width: 56px;
    background: rgba(230,124,44,0.12);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
}
.scenario-full h3 { font-size: 1.2rem; margin-bottom: 6px; }
.scenario-full-subtitle { color: var(--gray-400); font-size: 0.9rem; font-style: italic; }
.scenario-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 20px;
}
.scenario-col { padding: 24px; border-radius: var(--radius-sm); }
.scenario-col-problem { background: rgba(220,53,69,0.06); border: 1px solid rgba(220,53,69,0.15); }
.scenario-col-solution { background: rgba(87,168,73,0.06); border: 1px solid rgba(87,168,73,0.15); }
.scenario-col h4 {
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}
.scenario-col-problem h4 { color: #f87171; }
.scenario-col-solution h4 { color: #6ee7b7; }
.scenario-col p, .scenario-col li {
    color: var(--gray-300);
    font-size: 0.92rem;
    line-height: 1.65;
}
.scenario-col ul {
    list-style: none;
    padding: 0;
}
.scenario-col ul li {
    padding: 4px 0 4px 20px;
    position: relative;
}
.scenario-col-problem ul li::before { content: ''; position: absolute; left: 0; top: 12px; width: 8px; height: 8px; border-radius: 50%; background: rgba(220,53,69,0.4); }
.scenario-col-solution ul li::before { content: ''; position: absolute; left: 0; top: 12px; width: 8px; height: 8px; border-radius: 50%; background: rgba(87,168,73,0.5); }
.scenario-savings {
    margin-top: 16px;
    padding: 12px 16px;
    background: rgba(30,124,216,0.08);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(30,124,216,0.15);
    display: flex; align-items: center; gap: 10px;
}
.scenario-savings-amount {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--blue);
}
.scenario-savings-label { color: var(--gray-300); font-size: 0.88rem; }
@media (max-width: 768px) {
    .scenario-columns { grid-template-columns: 1fr; }
    .scenario-full-header { flex-direction: column; }
}

/* --- Pricing --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}
.pricing-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all var(--transition);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}
.pricing-card-popular {
    border-color: var(--blue);
    box-shadow: 0 0 0 1px var(--blue), 0 12px 32px rgba(30,124,216,0.15);
}
.pricing-popular-badge {
    position: absolute;
    top: -14px; left: 50%; transform: translateX(-50%);
    background: var(--blue);
    color: var(--white);
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 6px 20px;
    border-radius: 20px;
    letter-spacing: 1px;
    white-space: nowrap;
}
.pricing-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.pricing-card-desc {
    color: var(--gray-400);
    font-size: 0.88rem;
    margin-bottom: 20px;
    min-height: 44px;
}
.pricing-price {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}
.pricing-price sup {
    font-size: 1.2rem;
    vertical-align: super;
    color: var(--gray-400);
}
.pricing-price-period {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--gray-400);
    font-weight: 400;
    margin-top: 4px;
}
.pricing-divider {
    height: 1px;
    background: var(--dark-4);
    margin: 24px 0;
}
.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 28px;
}
.pricing-features li {
    padding: 8px 0 8px 28px;
    color: var(--gray-300);
    font-size: 0.9rem;
    position: relative;
}
.pricing-features li::before {
    content: '';
    position: absolute;
    left: 0; top: 14px;
    width: 16px; height: 16px;
    background: rgba(87,168,73,0.2);
    border-radius: 50%;
}
.pricing-features li::after {
    content: '';
    position: absolute;
    left: 5px; top: 19px;
    width: 6px; height: 3px;
    border-left: 2px solid var(--green);
    border-bottom: 2px solid var(--green);
    transform: rotate(-45deg);
}
.pricing-features li.disabled {
    color: var(--gray-500);
}
.pricing-features li.disabled::before {
    background: rgba(110,118,129,0.15);
}
.pricing-features li.disabled::after {
    border-color: var(--gray-500);
    content: '';
    width: 10px; height: 0;
    border-left: none;
    border-bottom: 2px solid var(--gray-500);
    transform: none;
    left: 3px; top: 22px;
}
.pricing-card .btn { width: 100%; }
.pricing-note {
    text-align: center;
    color: var(--gray-400);
    font-size: 0.88rem;
    margin-top: 32px;
}
@media (max-width: 768px) {
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
}

/* --- Device / Hardware --- */
.device-hero {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 48px;
    align-items: center;
    padding: 40px 0;
}
.device-image {
    text-align: center;
}
.device-image .hero-image-wrap {
    padding: 20px;
}
.device-image img {
    max-width: 800px;
    width: 100%;
    filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5));
}
.device-info h2 { margin-bottom: 16px; }
.device-info p { color: var(--gray-400); font-size: 1rem; line-height: 1.7; margin-bottom: 16px; }
.device-badges {
    display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px;
}
.device-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--dark-3);
    border: 1px solid var(--dark-4);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.82rem;
    color: var(--gray-200);
    font-weight: 500;
}
.device-badge svg { width: 16px; height: 16px; }

.spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.spec-card {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: var(--radius);
    padding: 28px;
}
.section-alt .spec-card { background: var(--dark-3); }
.spec-card h4 {
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    color: var(--blue);
    margin-bottom: 16px;
}
.spec-table {
    width: 100%;
    border-collapse: collapse;
}
.spec-table tr { border-bottom: 1px solid var(--dark-4); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td {
    padding: 8px 0;
    font-size: 0.88rem;
    vertical-align: top;
}
.spec-table td:first-child { color: var(--gray-400); width: 45%; }
.spec-table td:last-child { color: var(--gray-200); }
@media (max-width: 768px) {
    .device-hero { grid-template-columns: 1fr; text-align: center; }
    .device-badges { justify-content: center; }
    .device-image img { max-width: 100%; }
    .device-image .hero-image-wrap { padding: 30px; }
    .spec-grid { grid-template-columns: 1fr; }
}

/* --- OBD Data Grid --- */
.obd-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.obd-item {
    background: var(--dark-3);
    border: 1px solid var(--dark-4);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    transition: all var(--transition);
}
.obd-item:hover { border-color: var(--blue); transform: translateY(-2px); }
.obd-item-icon { font-size: 1.6rem; margin-bottom: 10px; }
.obd-item h4 { font-size: 0.8rem; margin-bottom: 4px; letter-spacing: 0.5px; }
.obd-item p { color: var(--gray-400); font-size: 0.8rem; }
@media (max-width: 768px) {
    .obd-grid { grid-template-columns: repeat(2, 1fr); }
}

/* --- AI Page --- */
.ai-capability {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 0;
    border-bottom: 1px solid var(--dark-4);
}
.ai-capability:last-child { border-bottom: none; }
.ai-capability:nth-child(even) { direction: rtl; }
.ai-capability:nth-child(even) > * { direction: ltr; }
.ai-visual {
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: var(--radius);
    padding: 32px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--gray-300);
    position: relative;
    overflow: hidden;
}
.ai-visual::before {
    content: 'AI OUTPUT';
    position: absolute;
    top: 12px; right: 16px;
    font-family: var(--font-heading);
    font-size: 0.55rem;
    letter-spacing: 2px;
    color: var(--gray-500);
}
.ai-visual .ai-highlight { color: var(--orange); font-weight: 600; }
.ai-visual .ai-green { color: var(--green); }
.ai-visual .ai-blue { color: var(--blue); }
.ai-content h3 { margin-bottom: 12px; }
.ai-content p { color: var(--gray-400); font-size: 0.95rem; line-height: 1.7; margin-bottom: 16px; }
.ai-content ul {
    list-style: none;
    padding: 0;
}
.ai-content ul li {
    padding: 6px 0 6px 24px;
    color: var(--gray-300);
    font-size: 0.92rem;
    position: relative;
}
.ai-content ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 14px;
    width: 8px; height: 8px;
    background: var(--blue);
    border-radius: 50%;
}
@media (max-width: 768px) {
    .ai-capability { grid-template-columns: 1fr; gap: 24px; }
    .ai-capability:nth-child(even) { direction: ltr; }
}

/* --- Comparison Table --- */
.comparison-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--dark-4);
}
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}
.comparison-table thead th {
    background: var(--dark-3);
    padding: 16px 20px;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    letter-spacing: 1px;
    color: var(--gray-200);
    border-bottom: 1px solid var(--dark-4);
}
.comparison-table thead th:first-child { min-width: 220px; }
.comparison-table tbody td {
    padding: 12px 20px;
    font-size: 0.9rem;
    color: var(--gray-300);
    border-bottom: 1px solid var(--dark-4);
}
.comparison-table tbody tr:last-child td { border-bottom: none; }
.comparison-table tbody tr:hover { background: rgba(30,124,216,0.04); }
.comparison-table .check { color: var(--green); font-weight: 600; }
.comparison-table .dash { color: var(--gray-500); }

/* --- CTA Banner --- */
.cta-banner {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--dark-2) 0%, var(--dark) 100%);
    position: relative;
}
.cta-banner::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 50% 60% at 50% 50%, rgba(30,124,216,0.06) 0%, transparent 70%);
}
.cta-banner h2 { margin-bottom: 16px; position: relative; }
.cta-banner p {
    color: var(--gray-400);
    font-size: 1.05rem;
    margin-bottom: 32px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}
.cta-banner .btn { position: relative; }

/* --- FAQ --- */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
    border-bottom: 1px solid var(--dark-4);
}
.faq-item summary {
    padding: 20px 0;
    cursor: pointer;
    font-weight: 600;
    color: var(--gray-100);
    font-size: 1rem;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 1.4rem;
    color: var(--gray-400);
    font-weight: 300;
    transition: transform var(--transition);
}
.faq-item[open] summary::after { content: '-'; }
.faq-item .faq-answer {
    padding: 0 0 20px;
    color: var(--gray-400);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* --- Footer --- */
.footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--dark-4);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand p {
    color: var(--gray-400);
    font-size: 0.88rem;
    margin-top: 16px;
    line-height: 1.6;
    max-width: 320px;
}
.footer-brand img { height: 32px; }
.footer-col h4 {
    font-size: 0.7rem;
    letter-spacing: 1.5px;
    color: var(--gray-200);
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
    color: var(--gray-400);
    font-size: 0.88rem;
    transition: color var(--transition);
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--dark-4);
    font-size: 0.82rem;
    color: var(--gray-500);
}
.footer-bottom a { color: var(--gray-400); }
@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

/* --- Misc --- */
.text-blue { color: var(--blue); }
.text-orange { color: var(--orange); }
.text-green { color: var(--green); }
.text-muted { color: var(--gray-400); }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.text-center { text-align: center; }

/* Install steps */
.install-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 40px;
}
.install-step {
    text-align: center;
    padding: 32px 20px;
    background: var(--dark-2);
    border: 1px solid var(--dark-4);
    border-radius: var(--radius);
}
.section-alt .install-step { background: var(--dark-3); }
.install-step-icon {
    font-size: 2.4rem;
    margin-bottom: 16px;
}
.install-step h4 { font-size: 0.95rem; margin-bottom: 8px; }
.install-step p { color: var(--gray-400); font-size: 0.88rem; }
@media (max-width: 768px) {
    .install-steps { grid-template-columns: 1fr; }
}

/* Two-col layout */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
@media (max-width: 768px) {
    .two-col { grid-template-columns: 1fr; gap: 32px; }
}

/* Tier badge */
.tier-badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 4px 12px;
    border-radius: 20px;
    margin-left: 8px;
    vertical-align: middle;
}
.tier-badge-blue { background: rgba(30,124,216,0.15); color: var(--blue); }
.tier-badge-orange { background: rgba(230,124,44,0.15); color: var(--orange); }

/* ============================================
   LIGHT MODE
   ============================================ */
[data-theme="light"] {
    --dark: #ffffff;
    --dark-2: #f6f8fa;
    --dark-3: #eaeef2;
    --dark-4: #d0d7de;
    --gray-100: #1f2328;
    --gray-200: #32383f;
    --gray-300: #57606a;
    --gray-400: #656d76;
    --gray-500: #8b949e;
    --white: #1f2328;
}

[data-theme="light"] body {
    color: #1f2328;
}

[data-theme="light"] .nav {
    background: rgba(255, 255, 255, 0.95);
    border-bottom-color: #d0d7de;
}

[data-theme="light"] .nav-links a:hover,
[data-theme="light"] .nav-links a.active {
    color: #1f2328;
    background: #eaeef2;
}

[data-theme="light"] .nav-links a {
    color: #57606a;
}

[data-theme="light"] .nav-hamburger {
    color: #57606a;
    background: #eaeef2;
    border-color: #d0d7de;
}

[data-theme="light"] .nav-mobile-panel {
    background: #ffffff;
    border-bottom-color: #d0d7de;
    box-shadow: 0 12px 32px rgba(0,0,0,0.1);
}

[data-theme="light"] .nav-mobile-panel a {
    color: #57606a;
}

[data-theme="light"] .nav-mobile-panel a:active {
    background: #eaeef2;
    color: #1f2328;
}

[data-theme="light"] .nav-logo img.logo-white { display: none; }
[data-theme="light"] .nav-logo img.logo-dark { display: block; }
[data-theme="dark"] .nav-logo img.logo-white,
.nav-logo img.logo-white { display: block; }
[data-theme="dark"] .nav-logo img.logo-dark,
.nav-logo img.logo-dark { display: none; }

[data-theme="light"] .footer-brand img.logo-white { display: none; }
[data-theme="light"] .footer-brand img.logo-dark { display: block; }
.footer-brand img.logo-dark { display: none; }

[data-theme="light"] .hero {
    background: linear-gradient(180deg, #ffffff 0%, #f6f8fa 50%, #ffffff 100%);
}

[data-theme="light"] .hero::before {
    background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(30,124,216,0.06) 0%, transparent 70%);
}

[data-theme="light"] .hero-badge {
    background: rgba(30,124,216,0.08);
    border-color: rgba(30,124,216,0.2);
}

[data-theme="light"] .hero-image img {
    box-shadow: 0 24px 80px rgba(0,0,0,0.12);
}

[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] h3,
[data-theme="light"] h4 {
    color: #1f2328;
}

[data-theme="light"] .hero h1 .highlight { color: var(--blue); }
[data-theme="light"] .hero h1 .highlight-orange { color: var(--orange); }

[data-theme="light"] .hero-stat-number { color: #1f2328; }

[data-theme="light"] .feature-card {
    background: #ffffff;
    border-color: #d0d7de;
}

[data-theme="light"] .section-alt .feature-card {
    background: #ffffff;
}

[data-theme="light"] .feature-card:hover {
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
}

[data-theme="light"] .scenario-card {
    background: #ffffff;
    border-color: #d0d7de;
}

[data-theme="light"] .section-alt .scenario-card { background: #ffffff; }

[data-theme="light"] .scenario-detail {
    background: #f6f8fa;
}

[data-theme="light"] .section-alt .scenario-detail { background: #f6f8fa; }

[data-theme="light"] .scenario-col-problem { background: rgba(220,53,69,0.04); border-color: rgba(220,53,69,0.12); }
[data-theme="light"] .scenario-col-solution { background: rgba(87,168,73,0.04); border-color: rgba(87,168,73,0.12); }

[data-theme="light"] .pricing-card {
    background: #ffffff;
    border-color: #d0d7de;
}

[data-theme="light"] .pricing-card:hover {
    box-shadow: 0 16px 40px rgba(0,0,0,0.08);
}

[data-theme="light"] .pricing-card-popular {
    border-color: var(--blue);
    box-shadow: 0 0 0 1px var(--blue), 0 12px 32px rgba(30,124,216,0.08);
}

[data-theme="light"] .pricing-divider { background: #d0d7de; }

[data-theme="light"] .pricing-price { color: #1f2328; }

[data-theme="light"] .spec-card {
    background: #ffffff;
    border-color: #d0d7de;
}

[data-theme="light"] .section-alt .spec-card { background: #ffffff; }

[data-theme="light"] .spec-table tr { border-bottom-color: #eaeef2; }

[data-theme="light"] .obd-item {
    background: #ffffff;
    border-color: #d0d7de;
}

[data-theme="light"] .install-step {
    background: #ffffff;
    border-color: #d0d7de;
}

[data-theme="light"] .section-alt .install-step { background: #ffffff; }

[data-theme="light"] .ai-visual {
    background: #f6f8fa;
    border-color: #d0d7de;
    color: #57606a;
}

[data-theme="light"] .ai-visual::before { color: #8b949e; }

[data-theme="light"] .comparison-table-wrap { border-color: #d0d7de; }
[data-theme="light"] .comparison-table thead th { background: #f6f8fa; border-bottom-color: #d0d7de; color: #1f2328; }
[data-theme="light"] .comparison-table tbody td { border-bottom-color: #eaeef2; color: #57606a; }
[data-theme="light"] .comparison-table tbody tr:hover { background: rgba(30,124,216,0.03); }

[data-theme="light"] .faq-item { border-bottom-color: #d0d7de; }
[data-theme="light"] .faq-item summary { color: #1f2328; }

[data-theme="light"] .cta-banner {
    background: linear-gradient(180deg, #f6f8fa 0%, #ffffff 100%);
}

[data-theme="light"] .footer {
    border-top-color: #d0d7de;
}

[data-theme="light"] .footer-bottom { border-top-color: #d0d7de; }

[data-theme="light"] .btn-secondary {
    color: #1f2328;
    border-color: #d0d7de;
}

[data-theme="light"] .btn-secondary:hover {
    border-color: #8b949e;
    color: #1f2328;
}

[data-theme="light"] .device-badge {
    background: #f6f8fa;
    border-color: #d0d7de;
    color: #32383f;
}

[data-theme="light"] .scenario-savings {
    background: rgba(30,124,216,0.05);
    border-color: rgba(30,124,216,0.12);
}

[data-theme="light"] .step-number { color: #ffffff; }

[data-theme="light"] @media (max-width: 1024px) {
    .nav { background: rgba(255,255,255,0.98) !important; }
}

/* Theme toggle button */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--dark-3);
    border: 1px solid var(--dark-4);
    border-radius: 8px;
    cursor: pointer;
    color: var(--gray-300);
    transition: all var(--transition);
    padding: 0;
    margin-left: 8px;
}

.theme-toggle:hover {
    background: var(--dark-4);
    color: var(--gray-100);
}

[data-theme="light"] .theme-toggle {
    background: #eaeef2;
    border-color: #d0d7de;
    color: #57606a;
}

[data-theme="light"] .theme-toggle:hover {
    background: #d0d7de;
    color: #1f2328;
}

.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }

/* Language toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 12px;
    background: var(--dark-3);
    border: 1px solid var(--dark-4);
    border-radius: 8px;
    cursor: pointer;
    color: var(--gray-300);
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1px;
    transition: all var(--transition);
    text-decoration: none;
}

.lang-toggle:hover {
    background: var(--dark-4);
    color: var(--gray-100);
}

[data-theme="light"] .lang-toggle {
    background: #eaeef2;
    border-color: #d0d7de;
    color: #57606a;
}

[data-theme="light"] .lang-toggle:hover {
    background: #d0d7de;
    color: #1f2328;
}

/* Nav controls group */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* --- Legal Pages (Terms, Privacy) --- */
.legal-hero {
    padding: 140px 0 60px;
    text-align: center;
}
.legal-hero h1 { font-size: 2.4rem; margin-bottom: 12px; }
.legal-hero .legal-updated {
    color: var(--gray-400);
    font-size: 0.88rem;
}
.legal-content {
    padding: 0 0 80px;
    max-width: 820px;
    margin: 0 auto;
}
.legal-content h2 {
    font-size: 1.3rem;
    margin: 48px 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--dark-4);
    color: var(--blue);
}
.legal-content h2:first-child { margin-top: 0; }
.legal-content p {
    color: var(--gray-300);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 16px;
}
.legal-content ul {
    list-style: none;
    padding: 0;
    margin-bottom: 16px;
}
.legal-content ul li {
    padding: 6px 0 6px 24px;
    color: var(--gray-300);
    font-size: 0.95rem;
    line-height: 1.7;
    position: relative;
}
.legal-content ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 14px;
    width: 8px; height: 8px;
    background: var(--dark-4);
    border-radius: 50%;
}
.legal-content strong { color: var(--gray-100); }
.legal-content .legal-caps {
    text-transform: uppercase;
    font-weight: 600;
    color: var(--gray-200);
}
.legal-content a { color: var(--blue); }
.legal-content a:hover { color: var(--orange); }
.footer-legal {
    display: inline;
    margin-left: 8px;
}
.footer-legal a {
    color: var(--gray-500);
    font-size: 0.82rem;
}
.footer-legal a:hover { color: var(--gray-300); }
[data-theme="light"] .legal-content h2 { border-bottom-color: #d0d7de; }
[data-theme="light"] .legal-content ul li::before { background: #d0d7de; }
@media (max-width: 768px) {
    .legal-hero { padding: 120px 0 40px; }
    .legal-hero h1 { font-size: 1.6rem; }
    .legal-content { padding: 0 16px 60px; }
    .footer-legal { display: block; margin-left: 0; margin-top: 6px; }
}