:root {
    --ink: #10222c;
    --ink-soft: #2f4d5a;
    --paper: #f6f7f2;
    --card: rgba(255, 255, 255, 0.75);
    --line: rgba(16, 34, 44, 0.14);
    --accent: #0f766e;
    --accent-strong: #115e59;
    --shadow: 0 20px 45px rgba(22, 58, 74, 0.16);
}

@media (prefers-color-scheme: dark) {
    :root {
        --ink: #dce8e4;
        --ink-soft: #8aacaa;
        --paper: #0e1a1f;
        --card: rgba(255, 255, 255, 0.06);
        --line: rgba(220, 232, 228, 0.12);
        --accent: #2dd4bf;
        --accent-strong: #5eead4;
        --shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
    }
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    color: var(--ink);
    font-family: "Work Sans", "Segoe UI", sans-serif;
    background:
        radial-gradient(1200px 600px at 10% 0%, #dcece7 0%, transparent 60%),
        radial-gradient(900px 500px at 100% 90%, #e9d8bf 0%, transparent 62%),
        linear-gradient(155deg, #f2f6f4 0%, #eef0ea 55%, #ece8de 100%);
}

@media (prefers-color-scheme: dark) {
    body {
        background:
            radial-gradient(
                1200px 600px at 10% 0%,
                rgba(17, 94, 89, 0.18) 0%,
                transparent 60%
            ),
            radial-gradient(
                900px 500px at 100% 90%,
                rgba(100, 60, 20, 0.14) 0%,
                transparent 62%
            ),
            linear-gradient(155deg, #0e1a1f 0%, #0f1e22 55%, #131a18 100%);
    }
}

.bg-shape {
    position: fixed;
    z-index: -1;
    border-radius: 999px;
    filter: blur(1px);
}

.bg-shape-a {
    width: 26rem;
    height: 26rem;
    top: -10rem;
    right: -9rem;
    background: rgba(17, 94, 89, 0.12);
    transform: rotate(-8deg);
}

.bg-shape-b {
    width: 20rem;
    height: 20rem;
    left: -8rem;
    bottom: -6rem;
    background: rgba(180, 118, 38, 0.12);
}

@media (prefers-color-scheme: dark) {
    .bg-shape-a {
        background: rgba(45, 212, 191, 0.08);
    }

    .bg-shape-b {
        background: rgba(180, 118, 38, 0.08);
    }
}

.shell {
    width: min(72rem, 100% - 2.25rem);
    margin: 0 auto;
    padding: 4.5rem 0 3rem;
}

.hero h1 {
    margin: 0.25rem 0 0;
    font-family: "Fraunces", Georgia, serif;
    font-size: clamp(2.2rem, 4vw, 4.5rem);
    line-height: 0.95;
    letter-spacing: -0.02em;
}

.kicker {
    margin: 0;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-soft);
    font-weight: 700;
    font-size: 0.77rem;
}

.lead {
    margin: 1rem 0 0;
    line-height: 1.55;
    color: var(--ink-soft);
    font-size: clamp(1rem, 1.5vw, 1.22rem);
}

.cta-row {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.72rem 1.05rem;
    border-radius: 0.7rem;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid transparent;
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 10px 24px rgba(15, 118, 110, 0.28);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--accent-strong);
}

@media (prefers-color-scheme: dark) {
    .btn-primary {
        color: #0e1a1f;
        box-shadow: 0 10px 24px rgba(45, 212, 191, 0.22);
    }
}

.btn-secondary {
    border-color: var(--line);
    color: var(--ink);
    background: rgba(255, 255, 255, 0.55);
}

@media (prefers-color-scheme: dark) {
    .btn-secondary {
        background: rgba(255, 255, 255, 0.07);
    }
}

.cards {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
}

.download-panel {
    margin-top: 1.9rem;
    max-width: 56rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: 1.1rem;
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
}

.download-panel h2 {
    margin: 0;
    font-family: "Fraunces", Georgia, serif;
    font-size: 1.35rem;
}

.download-panel p {
    margin: 0.7rem 0 1rem;
    color: var(--ink-soft);
    line-height: 1.45;
}

.mono-path {
    font-family:
        ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
        "Liberation Mono", "Courier New", monospace;
    font-size: 0.95rem;
    line-height: 1.6;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: 1rem;
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
}

.card h2 {
    margin: 0;
    font-family: "Fraunces", Georgia, serif;
    font-size: 1.2rem;
}

.card p {
    margin: 0.55rem 0 0;
    color: var(--ink-soft);
    line-height: 1.45;
}

.links {
    margin-top: 1.4rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
}

.links a {
    color: var(--ink);
    text-underline-offset: 0.2em;
    font-weight: 500;
}

@media (max-width: 820px) {
    .shell {
        width: min(66rem, 100% - 1.35rem);
        padding-top: 3rem;
    }

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

    .lead {
        max-width: 100%;
    }
}