:root {
    --bg: #f9fafb;
    --card: #fff;
    --muted: #64748b;
    --border: #d1d5db;
    --pad: 1rem;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, sans-serif;
}

body {
    margin: 0;
    background: var(--bg);
    color: #0f172a;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--pad);
    margin-bottom: 1rem;
}

.row {
    display: flex;
    gap: .75rem;
    align-items: center;
    flex-wrap: wrap;
    margin: .5rem 0;
}

label {
    display: flex;
    flex-direction: column;
    font-size: .9rem;
    gap: .35rem;
}

input[type="text"],
input[type="url"],
input[type="password"],
textarea {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .6rem .7rem;
    min-width: 260px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

button {
    padding: .55rem .9rem;
    border-radius: 8px;
    border: 1px solid #1e3a8a;
    background: #1d4ed8;
    color: #fff;
    cursor: pointer;
}

button.secondary {
    border-color: #6b7280;
    background: #6b7280;
}

button:disabled {
    opacity: .6;
    cursor: not-allowed;
}

pre {
    background: #0b1220;
    color: #e7eefc;
    padding: var(--pad);
    border-radius: 10px;
    overflow: auto;
}

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