:root {
    --bg: #f5f2ec;
    --card: #ffffff;
    --ink: #1f2933;
    --muted: #6b7280;
    --accent: #2563eb;
    --danger: #dc2626;
    --border: #e2e8f0;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, serif;
    background: radial-gradient(circle at top, #fff6e8, #f3eadc 55%, #efe2d1 100%);
    color: var(--ink);
    min-height: 100vh;
}

.shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
}

.card {
    background: var(--card);
    padding: 36px 40px;
    border-radius: 18px;
    box-shadow: 0 18px 45px rgba(17, 24, 39, 0.12);
    max-width: 560px;
    width: 100%;
}

.card--inner {
    background: #faf7f0;
    border: 1px solid var(--border);
    box-shadow: none;
    padding: 16px 18px;
    border-radius: 14px;
    margin: 12px 0;
}

.impersonation-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: #fff7ed;
    border: 1px solid #fed7aa;
    color: #9a3412;
    padding: 10px 12px;
    border-radius: 12px;
    margin: 12px 0;
    font-size: 0.95rem;
}

.impersonation-banner__meta {
    color: #92400e;
    margin-left: 6px;
}

.impersonation-banner form {
    margin: 0;
}

h1 {
    margin: 0 0 12px;
    font-size: 2.2rem;
    letter-spacing: -0.02em;
}

p {
    margin: 0 0 16px;
    color: var(--muted);
}

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

.nav a {
    text-decoration: none;
    color: var(--accent);
    font-weight: 600;
}

.nav form {
    margin: 0;
    display: inline-flex;
}

.nav button {
    padding: 6px 12px;
}

.alert {
    background: #fee2e2;
    border: 1px solid #fecaca;
    color: #991b1b;
    padding: 10px 12px;
    border-radius: 12px;
    margin: 0 0 16px;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
    background: #fde68a;
    color: #92400e;
}

.badge--warn {
    background: #fde68a;
    color: #92400e;
}

.badge--danger {
    background: #fecaca;
    color: #7f1d1d;
}

.message-list {
    display: grid;
    gap: 12px;
    margin: 12px 0 20px;
}

.message {
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff9f1;
}

.message__role {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

.message__text {
    color: var(--ink);
}

.message__meta {
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--muted);
}

form {
    display: grid;
    gap: 12px;
    margin: 16px 0 8px;
}

label {
    font-weight: 600;
    color: var(--ink);
}

input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-family: inherit;
    font-size: 1rem;
}

textarea,
select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-family: inherit;
    font-size: 1rem;
}

pre {
    white-space: pre-wrap;
    word-break: break-word;
    background: #111827;
    color: #f9fafb;
    padding: 10px 12px;
    border-radius: 12px;
    margin: 6px 0 12px;
}

input[type="checkbox"] {
    width: auto;
}

button {
    border: none;
    background: var(--accent);
    color: #fff;
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
}

button:hover {
    filter: brightness(1.05);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
}

.button:hover {
    filter: brightness(1.05);
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    font-size: 0.95rem;
}

.table th,
.table td {
    text-align: left;
    padding: 10px 8px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.table th {
    font-weight: 700;
    color: var(--ink);
}

.table form {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    margin: 4px 0;
}

.table select {
    padding: 6px 8px;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-family: inherit;
}

.toggle-group {
    display: grid;
    gap: 8px;
}

.toggle-group label {
    font-weight: 500;
}

@media (max-width: 600px) {
    .card {
        padding: 28px 24px;
    }

    h1 {
        font-size: 1.9rem;
    }
}