*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:          #0d1117;
    --bg-card:     #161b22;
    --bg-input:    #21262d;
    --border:      #21262d;
    --border-soft: #30363d;
    --text:        #e6edf3;
    --text-muted:  #8b949e;
    --text-dim:    #484f58;
    --accent:      #58a6ff;
    --accent-code: #79c0ff;
    --accent-str:  #a5d6ff;
    --green:       #238636;
    --green-border:#2ea043;
    --green-dot:   #3fb950;
    --red:         #da3633;
    --red-border:  #f85149;
    --font-mono:   "SF Mono", "Fira Code", monospace;
    --radius:      6px;
    --radius-lg:   10px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    padding: 24px 40px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

footer {
    padding: 20px 40px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: .8rem;
    color: var(--text-dim);
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -.01em;
    text-decoration: none;
}

.logo span { color: var(--text); }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: 20px;
    padding: 4px 14px;
    font-size: .78rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.badge::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green-dot);
    flex-shrink: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius);
    font-size: .95rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: opacity .15s;
}

.btn:hover { opacity: .82; }

.btn-primary {
    background: var(--green);
    color: #fff;
    border: 1px solid var(--green-border);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text);
    border: 1px solid var(--border-soft);
}

.btn-danger {
    background: var(--red);
    color: #fff;
    border: 1px solid var(--red-border);
}

.btn-sm {
    padding: 5px 14px;
    font-size: .82rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: left;
}

.card h3 {
    font-size: .95rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}

.card p {
    font-size: .85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.snippet {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    font-family: var(--font-mono);
    font-size: .82rem;
    color: var(--accent-code);
    text-align: left;
    overflow-x: auto;
    white-space: nowrap;
}

.snippet .dim { color: var(--text-dim); }
.snippet .str { color: var(--accent-str); }