:root {
    --surface: #ffffff;
    --page-bg: #f8fafc;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --button: #1d4ed8;
    --button-hover: #1e40af;
    --link: #2563eb;
    --link-hover: #1d4ed8;
    --shadow: 0 20px 44px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

.landing-page {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(180deg, #fbfdff 0%, var(--page-bg) 100%);
    color: var(--text);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

.page-shell {
    width: min(980px, 100%);
    min-height: 100vh;
    margin: 0 auto;
    padding: 1.5rem clamp(1.25rem, 4vw, 3.25rem) 1.75rem;
    display: flex;
    flex-direction: column;
}

.site-header {
    margin-bottom: 2rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--text);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.brand-icon {
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 6px 14px rgba(37, 99, 235, 0.2);
}

.hero-card {
    flex: 1;
    max-width: 760px;
    padding: clamp(1.5rem, 3.2vw, 2.75rem);
    border: 1px solid var(--border);
    border-radius: 1rem;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(160px, 1fr);
    align-items: center;
    gap: clamp(1.1rem, 2vw, 1.8rem);
}

.hero-copy {
    min-width: 0;
}

.eyebrow {
    margin: 0 0 0.65rem;
    color: var(--link);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
    font-weight: 700;
}

.hero-card h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3.05rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.subheadline {
    margin: 0.9rem 0 0;
    color: var(--muted);
    font-size: clamp(1.04rem, 2vw, 1.25rem);
    line-height: 1.5;
    max-width: 46ch;
}

.supporting-copy {
    margin: 0.85rem 0 0;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 52ch;
}

.feature-list {
    margin: 1rem 0 0;
    padding-left: 1.1rem;
    color: #334155;
    line-height: 1.55;
}

.feature-list li + li {
    margin-top: 0.45rem;
}

.hero-actions {
    margin-top: 1.9rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.button-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.28rem;
    border-radius: 10px;
    border: 1px solid var(--button);
    background: var(--button);
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.button-primary:hover {
    background: var(--button-hover);
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(29, 78, 216, 0.26);
}

.secondary-link {
    color: var(--link);
    text-decoration: none;
    font-weight: 500;
}

.secondary-link:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

.hero-visual {
    border: 1px solid var(--border);
    border-radius: 0.9rem;
    padding: 1rem;
    background: #f8fbff;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
}

.hero-visual img {
    width: min(100%, 118px);
    height: auto;
    border-radius: 0.8rem;
}

.hero-visual p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--muted);
}

.site-footer {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.92rem;
}

@media (max-width: 640px) {
    .page-shell {
        padding-top: 1.2rem;
        padding-bottom: 1.2rem;
    }

    .site-header {
        margin-bottom: 1.4rem;
    }

    .hero-card {
        padding: 1.3rem;
    }

    .hero-layout {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        max-width: 220px;
    }

    .hero-actions {
        align-items: stretch;
    }
}