:root {
    --bg-deep: #1a1918;
    --surface: #232221;
    --surface-2: #2c2b29;
    --text-primary: #f5f4f1;
    --text-secondary: #b0aeab;
    --text-muted: #7a7876;
    --accent: #d44020;
    --accent-dim: #8a2a14;
    --border: #3a3937;
}

* { box-sizing: border-box; }

html {
    background: var(--bg-deep);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
}

header .wrap {
    display: flex;
    align-items: center;
    gap: 16px;
}

header .logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--accent);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

header .logo img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: block;
}

header .tag {
    color: var(--text-muted);
    font-size: 14px;
}

header nav {
    margin-left: auto;
    display: flex;
    gap: 22px;
}

header nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.15s;
}

header nav a:hover { color: var(--accent); }
header nav a.active { color: var(--text-primary); }

.wrap {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 24px;
}

main {
    flex: 1;
    padding: 56px 0 80px;
}

main h1 {
    font-size: 34px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 8px;
}

main .subtitle {
    color: var(--text-secondary);
    margin: 0 0 36px;
    font-size: 18px;
}

main h2 {
    font-size: 22px;
    font-weight: 700;
    margin: 40px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

main h3 {
    font-size: 17px;
    font-weight: 700;
    margin: 24px 0 8px;
    color: var(--text-primary);
}

main p { margin: 0 0 14px; }

main ul, main ol { padding-left: 22px; margin: 0 0 18px; }
main li { margin-bottom: 6px; }

main a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid var(--accent-dim);
}
main a:hover { border-bottom-color: var(--accent); }

main code, main kbd {
    font-family: "SF Mono", Menlo, Monaco, "Liberation Mono", monospace;
    font-size: 14px;
    background: var(--surface);
    color: var(--text-primary);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border);
}

main kbd {
    box-shadow: 0 1px 0 var(--border);
    font-weight: 600;
}

main table {
    border-collapse: collapse;
    width: 100%;
    margin: 18px 0 22px;
    font-size: 15px;
}

main thead th {
    text-align: left;
    background: var(--surface);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

main tbody td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

main tbody tr:hover { background: var(--surface); }

main blockquote {
    margin: 18px 0;
    padding: 12px 18px;
    background: var(--surface);
    border-left: 3px solid var(--accent);
    color: var(--text-secondary);
    border-radius: 4px;
}

main .meta {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 36px;
    font-style: italic;
}

footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 13px;
    padding: 22px 0;
}

footer .wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 16px;
}

footer a:hover { color: var(--accent); }

.hero {
    text-align: center;
    padding: 60px 0 40px;
}

.hero .icon {
    width: 128px;
    height: 128px;
    border-radius: 28px;
    box-shadow: 0 6px 22px rgba(0,0,0,0.6);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 44px;
    font-weight: 800;
    margin: 0 0 12px;
    letter-spacing: -0.025em;
}

.hero p {
    color: var(--text-secondary);
    font-size: 19px;
    margin: 0 auto 32px;
    max-width: 540px;
}

.cta {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    transition: background 0.15s;
}

.cta:hover { background: #b83518; }

@media (max-width: 600px) {
    header nav { display: none; }
    main h1 { font-size: 28px; }
    .hero h1 { font-size: 34px; }
    .wrap { padding: 0 18px; }
}