:root {
    color-scheme: light dark;
    --bg: #f4f6fa;
    --surface: #ffffff;
    --text: #0f1b2d;
    --muted: #5b6678;
    --border: #d9dfe8;
    --primary: #1e3a5f;
    --primary-text: #ffffff;
    --ok: #16794a;
    --warn: #b42318;
    --alert-bg: #fdecea;
    --code-bg: #eef1f6;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1220;
        --surface: #121c2e;
        --text: #e8edf5;
        --muted: #9aa6b8;
        --border: #25324a;
        --primary: #4f7cc0;
        --primary-text: #0b1220;
        --ok: #4cc38a;
        --warn: #ff8a80;
        --alert-bg: #3a1a1a;
        --code-bg: #0b1220;
    }
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
    max-width: 560px;
    margin: 0 auto;
    padding: 16px;
}

.head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

h1 { margin: 0; font-size: 1.4rem; }
h2 { margin: 0 0 8px; font-size: 1.1rem; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

label {
    display: block;
    margin: 12px 0 4px;
    font-size: .875rem;
    font-weight: 600;
    color: var(--muted);
}

label:first-of-type { margin-top: 0; }

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
}

input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 1px;
}

.btn {
    width: 100%;
    margin-top: 16px;
    padding: 11px 16px;
    font: inherit;
    font-weight: 600;
    color: var(--primary-text);
    background: var(--primary);
    border: 0;
    border-radius: 8px;
    cursor: pointer;
}

.btn-ghost {
    width: auto;
    margin: 0;
    padding: 6px 12px;
    color: var(--text);
    background: transparent;
    border: 1px solid var(--border);
}

.alert {
    margin-bottom: 16px;
    padding: 12px 16px;
    color: var(--warn);
    background: var(--alert-bg);
    border: 1px solid var(--warn);
    border-radius: 8px;
}

.ok { color: var(--ok); }
.warn { color: var(--warn); }
.note, .foot { color: var(--muted); font-size: .875rem; }
.note { margin: 0; }

.kv {
    width: 100%;
    margin-top: 12px;
    border-collapse: collapse;
    table-layout: fixed;
}

.kv th, .kv td {
    padding: 8px;
    text-align: left;
    vertical-align: top;
    border: 1px solid var(--border);
    overflow-wrap: anywhere;
}

.kv th {
    width: 38%;
    font-size: .8125rem;
    color: var(--muted);
    font-weight: 600;
}

.kv pre {
    margin: 0;
    padding: 6px;
    font-size: .75rem;
    white-space: pre-wrap;
    background: var(--code-bg);
    border-radius: 6px;
}