:root {
    --bg: #0B0B0C;
    --text: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.55);
    --text-tertiary: rgba(255, 255, 255, 0.35);
    --surface: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.07);
    --accent: #FFFFFF;
}

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

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    line-height: 1.5;
    min-height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: border-color 160ms ease, color 160ms ease;
}

a:hover {
    border-bottom-color: rgba(255, 255, 255, 0.6);
}

main {
    flex: 1;
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 24px 48px;
}

.nav {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 24px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
    border-bottom: none;
}

.nav-brand:hover {
    border-bottom: none;
}

.nav-brand .glyph {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    display: block;
    object-fit: cover;
}

.hero .icon {
    width: clamp(140px, 24vw, 200px);
    height: clamp(140px, 24vw, 200px);
    border-radius: clamp(32px, 5.4vw, 44px);
    display: block;
    margin: 0 auto;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.nav-links {
    display: inline-flex;
    gap: 22px;
    font-size: 14px;
    color: var(--text-secondary);
}

.nav-links a {
    color: var(--text-secondary);
    border-bottom: none;
}

.nav-links a:hover {
    color: var(--text);
    border-bottom: none;
}

.hero {
    text-align: center;
    padding: 32px 0 8px;
}

.hero .number {
    font-size: clamp(120px, 22vw, 200px);
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    margin: 0;
    user-select: none;
}

.hero h1 {
    margin: 32px 0 12px;
    font-size: clamp(28px, 4.4vw, 40px);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.hero .lede {
    margin: 0 auto;
    max-width: 480px;
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.55;
}

.cta {
    display: flex;
    justify-content: center;
    margin-top: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    border-radius: 14px;
    background: var(--text);
    color: #000;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.005em;
    border: 1px solid var(--text);
    border-bottom: 1px solid var(--text);
    transition: transform 160ms ease, opacity 160ms ease;
}

.btn:hover {
    border-bottom: 1px solid var(--text);
    opacity: 0.9;
}

.btn:active {
    transform: scale(0.98);
}

.btn .arrow {
    font-size: 16px;
    line-height: 1;
}

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.btn-secondary:hover {
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.09);
    opacity: 1;
}

.features {
    margin-top: 88px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.feature {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 22px;
}

.feature h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.005em;
}

.feature p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.55;
}

.section {
    margin-top: 88px;
}

.section h2 {
    margin: 0 0 8px;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.section p {
    margin: 0 0 16px;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
}

.section p + p {
    margin-top: 0;
}

.section h3 {
    margin: 28px 0 8px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.005em;
}

.section ul {
    margin: 0 0 16px;
    padding-left: 20px;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
}

.section li {
    margin-bottom: 6px;
}

.legal-meta {
    color: var(--text-tertiary);
    font-size: 13px;
    margin-bottom: 32px;
}

.support-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    margin-top: 24px;
}

.support-card .label {
    font-size: 13px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

.support-card a.email {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.support-card a.email:hover {
    border-bottom-color: rgba(255, 255, 255, 0.7);
}

footer {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 32px 24px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
    color: var(--text-tertiary);
    font-size: 13px;
}

footer .links {
    display: inline-flex;
    gap: 22px;
}

footer a {
    color: var(--text-tertiary);
    border-bottom: none;
}

footer a:hover {
    color: var(--text);
    border-bottom: none;
}

@media (max-width: 540px) {
    main {
        padding-top: 40px;
    }

    .nav {
        padding-top: 18px;
    }

    .features {
        margin-top: 64px;
    }

    .section {
        margin-top: 64px;
    }

    footer {
        flex-direction: column;
        gap: 14px;
        text-align: center;
    }
}