:root {
    --primary: #00bdb1;
    --primary-dark: #007c78;
    --primary-deep: #005b5a;
    --paper: #ffffff;
    --wash: #f3fbfa;
    --line: #d7e4e5;
    --ink: #123238;
    --muted: #537075;
    --danger: #a33a2e;
    --radius: 8px;
    --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--wash);
    font-family: var(--font);
    line-height: 1.55;
}

a {
    color: inherit;
}

:focus-visible {
    outline: 3px solid var(--primary-deep);
    outline-offset: 3px;
}

.admin-shell {
    display: grid;
    grid-template-columns: 270px minmax(0, 1fr);
    min-height: 100vh;
}

.admin-sidebar {
    position: sticky;
    top: 0;
    display: grid;
    grid-template-rows: auto 1fr auto;
    height: 100vh;
    padding: 24px;
    color: var(--paper);
    background: var(--ink);
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--paper);
    text-decoration: none;
}

.admin-brand span {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    color: var(--ink);
    background: var(--primary);
    border-radius: 50%;
    font-weight: 900;
}

.admin-sidebar nav {
    display: grid;
    align-content: start;
    gap: 6px;
    margin-top: 30px;
}

.admin-sidebar a {
    padding: 10px 12px;
    border-radius: var(--radius);
    text-decoration: none;
}

.admin-sidebar nav a:hover,
.admin-sidebar-foot a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.admin-sidebar-foot {
    display: grid;
    gap: 4px;
}

.admin-main {
    width: min(100% - 48px, 1160px);
    margin: 0 auto;
    padding: 36px 0 60px;
}

.admin-main--login {
    grid-column: 1 / -1;
    display: grid;
    place-items: center;
    width: min(100% - 32px, 520px);
    min-height: 100vh;
}

.admin-page-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}

.admin-page-head h1,
.login-card h1 {
    margin: 0;
    font-size: 2.2rem;
    line-height: 1.1;
}

.kicker {
    margin: 0 0 8px;
    color: var(--primary-deep);
    font-size: 0.78rem;
    font-weight: 850;
    text-transform: uppercase;
}

.button,
button.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 16px;
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.button-primary {
    color: var(--ink);
    background: var(--primary);
    border-color: var(--primary);
}

.button-danger {
    color: var(--paper);
    background: var(--danger);
    border-color: var(--danger);
}

.login-card,
.admin-panel,
.stat-grid article,
.notice {
    padding: 24px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 14px 36px rgba(18, 50, 56, 0.08);
}

.login-card {
    display: grid;
    gap: 22px;
}

.notice {
    margin: 18px 0;
}

.notice-error,
.admin-flash--error {
    color: #842419;
    background: #fff1ee;
    border-color: rgba(163, 58, 46, 0.3);
}

.admin-flash {
    margin-bottom: 20px;
    padding: 14px 16px;
    color: var(--primary-deep);
    background: #d9fbf8;
    border: 1px solid rgba(0, 125, 120, 0.25);
    border-radius: var(--radius);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

.stat-grid article {
    display: grid;
    gap: 6px;
}

.stat-grid span {
    color: var(--primary-deep);
    font-size: 2.4rem;
    font-weight: 900;
    line-height: 1;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 12px;
}

.quick-actions a {
    padding: 16px;
    color: var(--primary-deep);
    background: var(--wash);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font-weight: 800;
    text-decoration: none;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

.admin-table th,
.admin-table td {
    padding: 13px 14px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

.admin-table th {
    color: var(--muted);
    background: #f8fcfb;
    font-size: 0.82rem;
    text-transform: uppercase;
}

.admin-table tr:last-child td {
    border-bottom: 0;
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.field {
    display: grid;
    gap: 8px;
    margin-bottom: 16px;
}

.field--wide {
    grid-column: 1 / -1;
}

.field span,
.check span {
    font-weight: 780;
}

.field input,
.field textarea,
.field select {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    color: var(--ink);
    background: var(--paper);
    border: 1px solid #b7cbcd;
    border-radius: var(--radius);
}

.field textarea {
    resize: vertical;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 18px;
}

.admin-form-section {
    margin: 10px 0 18px;
    padding: 16px;
    background: var(--wash);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.admin-form-section h2 {
    margin: 0;
    font-size: 1rem;
}

.admin-form-section p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 0.92rem;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 8px;
}

.check {
    display: inline-grid;
    grid-template-columns: 20px 1fr;
    gap: 8px;
    align-items: start;
    margin: 8px 0 16px;
}

.check input {
    width: 18px;
    height: 18px;
    margin-top: 4px;
}

.help {
    color: var(--muted);
    font-size: 0.92rem;
}

code {
    padding: 2px 5px;
    background: rgba(18, 50, 56, 0.08);
    border-radius: 5px;
}

@media (max-width: 960px) {
    .admin-shell {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: static;
        height: auto;
    }

    .admin-sidebar nav,
    .admin-sidebar-foot {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .stat-grid,
    .quick-actions,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .admin-page-head {
        align-items: flex-start;
        flex-direction: column;
    }
}