:root {
    --bg: #f4f6f9;
    --surface: #fff;
    --text: #1b2430;
    --muted: #6b7686;
    --accent: #1d6fe0;
    --border: #dfe4ec;
    --danger: #c0392b;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #11161d;
        --surface: #1a212b;
        --text: #e6ebf2;
        --muted: #93a0b3;
        --accent: #5b9bff;
        --border: #2a3441;
        --danger: #ff7b6b;
    }
}

* { box-sizing: border-box; }

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

h1 { font-size: 1.5rem; margin: 0 0 .5rem; }

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

.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }

.card {
    width: 100%;
    max-width: 360px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

label { display: block; margin: 16px 0 4px; font-size: .875rem; color: var(--muted); }

input {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
}

input:focus-visible, button:focus-visible, summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

button {
    font: inherit;
    cursor: pointer;
}

.card button[type=submit] {
    width: 100%;
    margin-top: 20px;
    padding: 10px;
    color: #fff;
    background: var(--accent);
    border: 0;
    border-radius: 8px;
}

.error { margin: 12px 0 0; color: var(--danger); font-size: .875rem; }

.topbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.menu { position: relative; }
.menu summary { cursor: pointer; }
.menu form { display: block; }
.menu button {
    display: block;
    width: 100%;
    padding: 6px 0;
    text-align: left;
    color: var(--text);
    background: none;
    border: 0;
}
.menu button:disabled { color: var(--muted); cursor: default; }

.link { padding: 0; color: var(--accent); background: none; border: 0; }

.page { max-width: 960px; margin: 0 auto; padding: 24px 16px; }