:root {
    --bg: #07111d;
    --bg-secondary: #0d1826;
    --card: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.12);

    --text: #f5f7fa;
    --text-muted: #b6c2d2;

    --accent: #67d8f1;
    --accent-hover: #84e6fa;

    --max-width: 1280px;
    --radius: 24px;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(circle at top center,
            rgba(103, 216, 241, 0.08),
            transparent 40%),
        var(--bg);

    color: var(--text);
    font-family: Inter, Arial, Helvetica, sans-serif;
    line-height: 1.6;
}

/* ---------- HEADER ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(7, 17, 29, 0.92);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 18px 24px;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;

    color: var(--text);
    text-decoration: none;
    font-weight: 700;
}

.brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 14px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: var(--accent);
    color: #07111d;
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

/* ---------- HERO ---------- */

.hero {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 110px 24px 90px;

    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: center;
}

.eyebrow {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero h1 {
    font-size: clamp(3rem, 7vw, 5.8rem);
    line-height: 1;
    margin-bottom: 24px;
}

.hero-copy {
    color: var(--text-muted);
    font-size: 1.2rem;
    max-width: 720px;
    margin-bottom: 36px;
}

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

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 16px 28px;
    border-radius: 999px;

    text-decoration: none;
    font-weight: 700;

    transition: var(--transition);
}

.button.primary {
    background: var(--accent);
    color: #07111d;
}

.button.primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.button.secondary {
    color: var(--text);
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
}

.button.secondary:hover {
    background: rgba(255,255,255,0.1);
}

.trust-strip {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    color: var(--text-muted);
}

.hero-panel {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 36px;
}

.panel-label {
    color: var(--accent);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
}

.hero-panel h2 {
    font-size: 2rem;
    margin-bottom: 8px;
}

.hero-panel p {
    color: var(--text-muted);
}

.stat-grid {
    margin-top: 32px;

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

.stat-grid strong {
    display: block;
    font-size: 2rem;
}

.stat-grid span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ---------- SECTIONS ---------- */

.section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 90px 24px;
}

.section-head {
    max-width: 760px;
    margin-bottom: 48px;
}

.section-head h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    margin-bottom: 16px;
}

.section-head p {
    color: var(--text-muted);
}

/* ---------- CARDS ---------- */

.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);

    padding: 28px;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(103,216,241,0.4);
}

.card .icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 12px;
}

.card p {
    color: var(--text-muted);
}

/* ---------- ABOUT ---------- */

.split {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: start;
}

.credential-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 32px;
}

.credential-card h3 {
    margin-bottom: 20px;
}

.credential-card ul {
    padding-left: 20px;
}

.credential-card li {
    margin-bottom: 12px;
    color: var(--text-muted);
}

/* ---------- REVIEWS ---------- */

.review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-grid blockquote {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);

    padding: 28px;
    font-size: 1.1rem;
}

.review-grid cite {
    display: block;
    margin-top: 20px;
    color: var(--accent);
    font-style: normal;
}

/* ---------- FAQ ---------- */

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

.faq-grid article {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);

    padding: 28px;
}

.faq-grid h3 {
    margin-bottom: 12px;
}

.faq-grid p {
    color: var(--text-muted);
}

/* ---------- CONTACT ---------- */

.contact {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
}

.contact-card {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ---------- FOOTER ---------- */

.site-footer {
    padding: 50px 24px;
    text-align: center;

    border-top: 1px solid rgba(255,255,255,0.08);
}

.site-footer p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.site-footer a {
    color: var(--accent);
    text-decoration: none;
}

/* ---------- RESPONSIVE ---------- */

@media (max-width: 1024px) {

    .hero,
    .split,
    .contact {
        grid-template-columns: 1fr;
    }

    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {

    .nav {
        flex-direction: column;
        gap: 20px;
    }

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

    .card-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 70px;
    }

    .hero h1 {
        font-size: 3rem;
    }

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