:root {
    color-scheme: light;
    --ink: #1d2939;
    --muted: #667085;
    --line: #e4e7ec;
    --surface: #fff;
    --canvas: #f5f7fa;
    --primary: #176b53;
    --primary-dark: #10513f;
    --danger: #b42318;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--primary); }
.topbar { min-height: 68px; padding: 12px max(24px, calc((100% - 1180px)/2)); background: var(--surface); border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: var(--ink); font-weight: 750; text-decoration: none; }
.nav { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.nav a, .link-button { text-decoration: none; color: var(--muted); font: inherit; }
.nav a:hover, .link-button:hover { color: var(--primary); }
.nav form { margin: 0; }
.link-button, .link-danger { padding: 0; border: 0; background: none; cursor: pointer; }
.link-danger { color: var(--danger); }
.user-label { color: var(--muted); font-size: 13px; }
.container { width: min(1180px, calc(100% - 40px)); min-height: calc(100vh - 130px); margin: 36px auto; }
.page-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 5px; font-size: clamp(26px, 3vw, 34px); letter-spacing: -.03em; }
h2 { font-size: 19px; }
.eyebrow { margin-bottom: 5px; color: var(--primary); font-size: 12px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.muted, small { color: var(--muted); }
.muted { margin: 4px 0 0; }
.actions { display: flex; gap: 10px; }
.button { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 9px 16px; border: 1px solid var(--primary); border-radius: 8px; background: var(--primary); color: #fff; cursor: pointer; font: inherit; font-weight: 650; text-decoration: none; }
.button:hover { background: var(--primary-dark); color: #fff; }
.button-secondary { border-color: var(--line); background: #fff; color: var(--ink); }
.button-secondary:hover { background: #f2f4f7; color: var(--ink); }
.button-danger { border-color: #fecdca; background: #fff; color: var(--danger); }
.button-danger:hover { background: #fef3f2; color: var(--danger); }
.search-form { display: flex; gap: 9px; margin-bottom: 16px; }
input, select { width: 100%; min-height: 42px; padding: 9px 11px; border: 1px solid #d0d5dd; border-radius: 7px; background: #fff; color: var(--ink); font: inherit; }
input:focus, select:focus { outline: 3px solid #d1e9e1; border-color: var(--primary); }
.search-form input { max-width: 430px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; white-space: nowrap; }
th { background: #f9fafb; color: var(--muted); font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
tbody tr:last-child td { border-bottom: 0; }
td.empty { padding: 36px; color: var(--muted); text-align: center; }
.table-link { font-weight: 650; text-decoration: none; }
.pagination { display: flex; justify-content: center; align-items: center; gap: 20px; margin-top: 22px; color: var(--muted); }
.pagination a { text-decoration: none; }
.notice { margin: 0 0 18px; padding: 12px 15px; border: 1px solid #b2ddca; border-radius: 8px; background: #ecfdf3; color: #05603a; }
.notice-error { border-color: #fecdca; background: #fef3f2; color: #b42318; }
.notice-warning { border-color: #fedf89; background: #fffaeb; color: #93370d; }
.notice ul { margin-bottom: 0; }
.form-card, .auth-card { padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.form-card { margin-bottom: 22px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px; }
.form-grid label, .form-stack label { display: grid; gap: 6px; font-weight: 600; }
.form-grid label small { font-weight: 400; }
.span-2 { grid-column: span 2; }
.required { color: var(--danger); }
.form-actions { display: flex; gap: 10px; margin-top: 22px; }
.delete-form { margin-top: 12px; }
.form-stack { display: grid; gap: 17px; }
.auth-card { width: min(460px, 100%); margin: 48px auto; padding: 30px; }
.auth-card .button-wide { width: 100%; margin-top: 5px; }
.auth-card h1 { margin-bottom: 8px; }
.code-sample { overflow-x: auto; padding: 15px; border-radius: 7px; background: #f2f4f7; font-size: 12px; }
.users-table { margin-top: 20px; }
.footer { padding: 18px; border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 13px; text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; clip-path: inset(50%); }
@media (max-width: 760px) {
    .topbar { align-items: flex-start; flex-direction: column; padding: 14px 20px; }
    .nav { gap: 12px 18px; }
    .container { width: min(100% - 24px, 1180px); margin: 24px auto; }
    .page-heading { align-items: flex-start; flex-direction: column; }
    .search-form { flex-wrap: wrap; }
    .search-form input { flex: 1 1 100%; max-width: none; }
    .form-card { padding: 17px; }
    .form-grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .auth-card { margin-top: 24px; padding: 22px; }
}