:root {
    color-scheme: dark;
    --bg: #0b0f14;
    --bg-soft: #101620;
    --surface: rgba(18, 24, 35, 0.88);
    --surface-strong: rgba(20, 28, 40, 0.96);
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(241, 196, 97, 0.24);
    --text: #f4f7fb;
    --muted: #b0bac9;
    --accent: #f1c86c;
    --accent-soft: rgba(241, 200, 108, 0.14);
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
    --radius: 28px;
    --max-width: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "SF Pro Display", "SF Pro Text", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(241, 200, 108, 0.14), transparent 24%),
        radial-gradient(circle at 78% 12%, rgba(111, 139, 255, 0.14), transparent 20%),
        linear-gradient(180deg, #0f131a 0%, #0b0f14 100%);
}

a {
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

.container {
    width: min(var(--max-width), calc(100% - 40px));
    margin: 0 auto;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(18px);
    background: rgba(11, 15, 20, 0.72);
    border-bottom: 1px solid var(--border);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 0;
}

.nav-brand {
    text-decoration: none;
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.26em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: flex-end;
}

.nav-links a {
    text-decoration: none;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

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

.hero {
    padding: 72px 0 36px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
    gap: 52px;
    align-items: center;
}

.kicker {
    margin: 0 0 18px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.hero-title-row {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 18px;
}

.app-icon {
    width: 84px;
    height: 84px;
    border-radius: 22px;
    box-shadow: var(--shadow);
}

.hero-title {
    margin: 0;
    font-size: clamp(48px, 8vw, 88px);
    line-height: 0.95;
    letter-spacing: -0.04em;
}

.hero-subline {
    margin: 0;
    max-width: 44rem;
    color: var(--muted);
    font-size: 20px;
    line-height: 1.55;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
    padding: 14px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    text-decoration: none;
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    background: var(--accent);
    color: #121212;
    box-shadow: 0 14px 34px rgba(241, 200, 108, 0.2);
}

.button-secondary {
    background: rgba(255, 255, 255, 0.02);
    border-color: var(--border);
    color: var(--text);
}

.button-secondary:hover {
    border-color: var(--border-strong);
    color: var(--accent);
}

.hero-preview {
    padding: 14px;
    border-radius: 34px;
    background:
        radial-gradient(circle at top, rgba(241, 200, 108, 0.18), transparent 46%),
        var(--surface-strong);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.hero-preview img {
    width: 100%;
    border-radius: 22px;
}

.preview-caption {
    margin-top: 12px;
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.section {
    padding: 52px 0;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
}

.section-accent {
    width: 42px;
    height: 1px;
    background: var(--accent);
}

.section-title {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.feature-grid,
.policy-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.card {
    padding: 24px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.2);
}

.card h2 {
    margin: 0 0 12px;
    font-size: 20px;
    line-height: 1.2;
}

.card p,
.card li {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.65;
}

.card ul {
    margin: 12px 0 0 20px;
    padding: 0;
}

.support-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 14px;
}

.support-item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    border-top: 1px solid var(--border);
    padding-top: 14px;
}

.support-item:first-child {
    border-top: 0;
    padding-top: 0;
}

.support-label {
    color: var(--text);
    font-weight: 700;
}

.support-value {
    color: var(--muted);
    text-align: right;
}

.support-value a {
    color: var(--accent);
    text-decoration: none;
}

.meta-line {
    margin-top: 16px;
    color: var(--muted);
    font-size: 13px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.footer {
    padding: 30px 0 42px;
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

@media (max-width: 920px) {
    .hero-grid,
    .feature-grid,
    .policy-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 48px;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(var(--max-width), calc(100% - 28px));
    }

    .navbar .container {
        align-items: flex-start;
        flex-direction: column;
    }

    .hero-title-row {
        align-items: flex-start;
        flex-direction: column;
    }

    .app-icon {
        width: 72px;
        height: 72px;
    }

    .hero-subline {
        font-size: 18px;
    }

    .hero-actions .button {
        width: 100%;
        min-width: 0;
        flex: 1 1 100%;
    }

    .support-item {
        flex-direction: column;
    }

    .support-value {
        text-align: left;
    }
}