:root {
    --bg: #0b0d12;
    --card: #141821;
    --fg: #e6e8ee;
    --muted: #8a93a6;
    --accent: #5aa7ff;
    --error: #ff6a6a;
    --border: #232838;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.card {
    width: 100%;
    max-width: 520px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

h1 {
    margin: 0 0 8px;
    font-size: 28px;
    letter-spacing: -0.02em;
}

.tagline {
    margin: 0 0 24px;
    color: var(--muted);
    font-size: 15px;
}

#login-slot {
    min-height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.status {
    margin-top: 20px;
    font-size: 14px;
    color: var(--muted);
}

.status.error {
    color: var(--error);
}

.kv {
    margin: 24px 0 4px;
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 8px 16px;
    font-size: 14px;
    background: #0a0c12;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
}

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

.kv dd {
    margin: 0;
    font-family: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
    font-size: 13px;
    color: var(--fg);
    word-break: break-all;
}

button {
    margin-top: 16px;
    margin-right: 8px;
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

button:hover {
    border-color: var(--accent);
    color: var(--accent);
}