:root {
    --bg: #0a1116;
    --bg-panel: #111b22;
    --bg-panel-strong: #0d171f;
    --ink: #e8f2f7;
    --muted: #97a8b3;
    --line: #244153;
    --accent: #5eead4;
    --accent-2: #93c5fd;
    --warn: #fbbf24;
    --danger: #f87171;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at 88% -10%, rgba(94, 234, 212, 0.18), transparent 34%),
        radial-gradient(circle at 12% 0%, rgba(147, 197, 253, 0.16), transparent 30%),
        linear-gradient(180deg, rgba(8, 15, 20, 0.94), rgba(8, 15, 20, 1)),
        var(--bg);
    line-height: 1.55;
}

a {
    color: inherit;
}

code {
    font-family: "IBM Plex Mono", "Fira Code", monospace;
    background: rgba(36, 65, 83, 0.6);
    border-radius: 4px;
    padding: 0.1rem 0.35rem;
    font-size: 0.88em;
}

.page {
    max-width: 1120px;
    margin: 0 auto;
    padding: 1.4rem 1rem 3rem;
}

.hero,
.panel,
.stat,
.callout {
    border: 1px solid var(--line);
    border-radius: 16px;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(120px, 180px);
    gap: 1.25rem;
    align-items: center;
    padding: 1.2rem 1.25rem;
    background: linear-gradient(180deg, rgba(17, 27, 34, 0.97), rgba(17, 27, 34, 0.78));
}

.hero-copy h1 {
    margin: 0 0 0.45rem;
    font-size: clamp(2rem, 4.2vw, 3.2rem);
    line-height: 1.02;
}

.subtitle {
    margin: 0;
    max-width: 44rem;
    color: var(--muted);
    font-size: 1.03rem;
}

.badge {
    display: inline-block;
    margin-bottom: 0.65rem;
    padding: 0.22rem 0.65rem;
    border: 1px solid var(--accent);
    border-radius: 999px;
    color: var(--accent);
    font-size: 0.78rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1rem;
}

.hero-actions a {
    text-decoration: none;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: rgba(13, 23, 31, 0.95);
    padding: 0.55rem 0.8rem;
}

.hero-actions a:first-child {
    border-color: var(--accent);
    color: var(--accent);
}

.hero-mark {
    justify-self: end;
    width: min(180px, 24vw);
}

.hero-mark img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 14px;
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.28);
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin: 1rem 0 1.1rem;
}

.nav a {
    text-decoration: none;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: rgba(17, 27, 34, 0.78);
    padding: 0.46rem 0.75rem;
    font-size: 0.92rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.7rem;
    margin-bottom: 1rem;
}

.stat {
    padding: 0.8rem 0.9rem;
    background: var(--bg-panel);
}

.num {
    color: var(--accent-2);
    font-size: 1.7rem;
    font-weight: 700;
}

.label {
    color: var(--muted);
    font-size: 0.86rem;
}

.callout {
    margin-bottom: 1rem;
    padding: 0.95rem 1rem;
    background: rgba(94, 234, 212, 0.06);
}

.callout p {
    margin: 0;
    font-size: 1rem;
}

.panel {
    margin-bottom: 1rem;
    padding: 1.05rem;
    background: rgba(17, 27, 34, 0.86);
}

.panel h2 {
    margin: 0 0 0.8rem;
    font-size: 1.2rem;
}

.panel h3 {
    margin: 0 0 0.35rem;
    font-size: 1rem;
}

.prose p:last-child,
.card p:last-child {
    margin-bottom: 0;
}

.prose p {
    color: var(--muted);
}

.stack {
    display: grid;
    justify-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
    padding: 0.95rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--bg-panel-strong);
}

.stack-node {
    width: min(100%, 540px);
    padding: 0.95rem 1rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(17, 27, 34, 0.96);
    text-align: center;
}

.stack-label {
    color: var(--accent);
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.28rem;
}

.stack-node p {
    margin: 0;
    color: var(--muted);
}

.stack-arrow {
    color: var(--accent);
    font-size: 1.25rem;
}

.grid {
    display: grid;
    gap: 0.72rem;
}

.cols-2 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.cols-3 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
    padding: 0.9rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--bg-panel-strong);
}

.card p {
    margin: 0.35rem 0 0;
    color: var(--muted);
    font-size: 0.93rem;
}

.card ul {
    margin: 0.55rem 0 0;
    padding-left: 1.1rem;
    color: var(--muted);
}

.card li + li {
    margin-top: 0.4rem;
}

.emphasis {
    box-shadow: inset 0 0 0 1px rgba(94, 234, 212, 0.2);
}

.warning {
    box-shadow: inset 0 0 0 1px rgba(251, 191, 36, 0.18);
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--bg-panel-strong);
    margin-bottom: 0.85rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

.table th,
.table td {
    padding: 0.8rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.table thead th {
    color: var(--accent-2);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.table tbody tr:last-child td {
    border-bottom: 0;
}

.section-intro {
    margin: 0 0 0.9rem;
    color: var(--muted);
}

.usecase-group + .usecase-group {
    margin-top: 0.85rem;
}

.group-title {
    margin-bottom: 0.55rem;
    color: var(--accent);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.micro {
    font-size: 0.86rem;
}

.boundary-line {
    margin: 0.95rem 0 0;
    padding-top: 0.9rem;
    border-top: 1px solid var(--line);
    color: var(--ink);
    font-size: 0.98rem;
}

.footer {
    padding: 0.4rem 0 0.2rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.92rem;
}

.footer p {
    margin: 0.25rem 0;
}

.footer a {
    color: var(--accent-2);
    text-decoration: none;
}

@media (max-width: 760px) {
    .page {
        padding-left: 0.8rem;
        padding-right: 0.8rem;
    }

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

    .hero-mark {
        justify-self: start;
        width: min(150px, 42vw);
    }

    .table {
        min-width: 640px;
    }
}