:root {
    color-scheme: light;
    --auth-bg: #f5f7fa;
    --auth-panel: #ffffff;
    --auth-line: #d9e1e8;
    --auth-text: #17202a;
    --auth-muted: #667085;
    --auth-accent: #007f7a;
    --auth-accent-hover: #006b67;
    --auth-danger: #9b1c1c;
    --auth-danger-bg: #fdecec;
    --auth-success: #146c2e;
    --auth-success-bg: #e5f6ea;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--auth-bg);
    color: var(--auth-text);
    font-family: Arial, "Microsoft YaHei", sans-serif;
}

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

.auth-shell {
    width: min(100%, 440px);
    padding: 24px;
}

.auth-panel,
.admin-section {
    border: 1px solid var(--auth-line);
    border-radius: 8px;
    background: var(--auth-panel);
    padding: 24px;
}

.auth-heading span,
.admin-header span {
    color: var(--auth-muted);
    font-size: 13px;
}

h1,
h2 {
    margin-top: 0;
}

.auth-heading h1 {
    margin: 6px 0 22px;
    font-size: 24px;
}

.auth-form {
    display: grid;
    gap: 16px;
}

.auth-form label {
    display: grid;
    gap: 6px;
    color: var(--auth-muted);
    font-size: 13px;
    font-weight: 700;
}

.auth-form input {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--auth-line);
    border-radius: 6px;
    padding: 9px 10px;
    background: #fff;
    color: var(--auth-text);
    font: inherit;
}

.auth-form input:focus {
    border-color: var(--auth-accent);
    outline: 2px solid rgb(0 127 122 / 16%);
    outline-offset: 1px;
}

.auth-form button {
    min-height: 42px;
    border: 0;
    border-radius: 6px;
    padding: 9px 14px;
    background: var(--auth-accent);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

.auth-form button:hover {
    background: var(--auth-accent-hover);
}

.auth-message {
    border: 1px solid transparent;
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 14px;
}

.auth-message--error {
    border-color: #f2b8b5;
    background: var(--auth-danger-bg);
    color: var(--auth-danger);
}

.auth-message--success {
    border-color: #b9dfc4;
    background: var(--auth-success-bg);
    color: var(--auth-success);
}

.admin-shell {
    width: min(100%, 900px);
    margin: 40px auto;
    padding: 0 24px 40px;
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 20px;
}

.admin-header h1 {
    margin: 5px 0 0;
    font-size: 26px;
}

.admin-header a {
    color: var(--auth-accent);
    font-weight: 700;
}

.admin-section + .admin-section {
    margin-top: 18px;
}

.admin-section h2 {
    margin-bottom: 16px;
    font-size: 18px;
}

.user-table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th,
td {
    border-bottom: 1px solid var(--auth-line);
    padding: 10px 8px;
    text-align: left;
}

th {
    color: var(--auth-muted);
    font-size: 12px;
}

.admin-form {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
    align-items: end;
}

@media (max-width: 680px) {
    .admin-header,
    .admin-form {
        align-items: stretch;
        grid-template-columns: 1fr;
    }

    .admin-header {
        flex-direction: column;
    }
}