:root {
    --bg: #ffffff;
    --surface: #ffffff;
    --text: #111827;
    --text-soft: #4b5563;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --max-width: 1100px;
    --content-width: 760px;
    --radius: 16px;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover,
a:focus-visible {
    color: var(--accent-hover);
}

code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.95em;
    padding: 0.18em 0.45em;
    border-radius: 8px;
    background: #f3f4f6;
    color: #111827;
}

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

.container {
    width: min(100% - 2rem, var(--max-width));
    margin-inline: auto;
}

.row {
    display: flex;
    justify-content: center;
}

.hero-section {
    width: 100%;
    max-width: var(--content-width);
    padding: clamp(4rem, 10vw, 7rem) 0 clamp(3rem, 7vw, 5rem);
}

.title {
    margin: 0;
    max-width: 15ch;
    font-size: clamp(2.5rem, 6vw, 4.8rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    font-weight: 600;
    text-wrap: balance;
}

.subtitle {
    margin: 1.25rem 0 0;
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    line-height: 1.4;
    font-weight: 400;
    color: var(--text-soft);
    max-width: 32rem;
}

.intro {
    margin-top: 2.25rem;
    max-width: 42rem;
}

.intro p {
    margin: 0 0 1rem;
    font-size: 1.125rem;
    color: var(--text);
}

.intro p:last-child {
    margin-bottom: 0;
}

.cta {
    margin-top: 2rem;
    font-size: 1rem;
    color: var(--text-soft);
}

.cta a {
    font-weight: 500;
}

.footer {
    width: 100%;
    max-width: var(--content-width);
    padding: 0 0 2.5rem;
    border-top: 1px solid var(--border);
}

.footer p {
    margin: 1.25rem 0 0;
    font-size: 0.95rem;
    color: var(--text-muted);
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 1.5rem, var(--max-width));
    }

    .hero-section {
        padding: 3.5rem 0 2.5rem;
    }

    .intro {
        margin-top: 1.75rem;
    }

    .intro p {
        font-size: 1.05rem;
    }

    .cta {
        margin-top: 1.75rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
    }
}