:root {
    --bg: #eef3fb;
    --panel: #ffffff;
    --panel-soft: #f8faff;
    --border: #d5deea;
    --text: #1b2533;
    --muted: #5e6f86;
    --accent: #4a6ea8;
    --accent-soft: #dce7fa;
    --ok: #3f8b62;
    --warn: #b78729;
    --error: #b14b4b;
    --shadow: 0 16px 34px rgba(43, 65, 103, 0.08);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(180deg, #f3f7ff 0%, #eaf0fa 100%);
    color: var(--text);
}

.admin-app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
}

.admin-sidebar {
    background: #101a27;
    color: #dce7ff;
    padding: 22px 16px;
}

.admin-brand h1 {
    font-size: 22px;
    margin: 4px 0 16px;
    line-height: 1.2;
}

.admin-brand-kicker {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.11em;
    font-size: 11px;
    color: #9fb1cb;
}

.admin-nav {
    display: grid;
    gap: 6px;
}

.admin-nav a {
    color: #d0dcf2;
    text-decoration: none;
    border-radius: 10px;
    padding: 11px 12px;
    font-size: 14px;
    font-weight: 600;
}

.admin-nav a.active,
.admin-nav a:hover {
    background: #213145;
    color: #ffffff;
}

.admin-main {
    padding: 18px;
    display: grid;
    gap: 14px;
}

.admin-topbar {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.admin-topbar h2 {
    margin: 0;
    font-size: 23px;
}

.admin-topbar p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.admin-top-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 16px;
}

.admin-card h3 {
    margin: 0 0 7px;
    font-size: 18px;
}

.admin-card p {
    margin: 0 0 14px;
    color: var(--muted);
    font-size: 14px;
}

.admin-grid-stats {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.admin-stat-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 15px;
}

.admin-stat-card p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.admin-stat-card h3 {
    margin: 9px 0 0;
    font-size: 30px;
    color: #16202f;
}

.admin-btn {
    appearance: none;
    border: 1px solid transparent;
    text-decoration: none;
    border-radius: 12px;
    min-height: 44px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.admin-btn-primary {
    background: var(--accent);
    color: #ffffff;
}

.admin-btn-primary:hover {
    filter: brightness(0.95);
}

.admin-btn-secondary {
    background: var(--panel-soft);
    color: #31435e;
    border-color: var(--border);
}

.admin-btn-ghost {
    background: #ffffff;
    color: #344862;
    border-color: var(--border);
}

.admin-inline-form {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-progress {
    font-size: 13px;
    color: var(--muted);
}

.admin-form-stack {
    display: grid;
    gap: 12px;
}

.admin-field {
    display: grid;
    gap: 6px;
}

.admin-field span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.admin-field.inline {
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-field input[type="text"],
.admin-field input[type="password"],
.admin-field input[type="number"],
.admin-field input[type="search"],
.admin-field select {
    width: 100%;
    min-height: 44px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #ffffff;
    color: var(--text);
    padding: 10px 12px;
    font-size: 14px;
}

.admin-library-filters {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    align-items: end;
}

.admin-filter-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.admin-alert {
    border-radius: 12px;
    padding: 11px 12px;
    font-size: 13px;
    font-weight: 600;
}

.admin-alert-success {
    border: 1px solid rgba(63, 139, 98, 0.36);
    color: #235f40;
    background: rgba(63, 139, 98, 0.12);
}

.admin-alert-warning {
    border: 1px solid rgba(183, 135, 41, 0.34);
    color: #7b5a19;
    background: rgba(183, 135, 41, 0.12);
}

.admin-alert-error {
    border: 1px solid rgba(177, 75, 75, 0.35);
    color: #7f3030;
    background: rgba(177, 75, 75, 0.12);
}

.admin-table-wrap {
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: auto;
}

.admin-table {
    border-collapse: collapse;
    width: 100%;
    min-width: 820px;
}

.admin-table th,
.admin-table td {
    border-bottom: 1px solid var(--border);
    text-align: left;
    padding: 9px 10px;
    font-size: 13px;
    vertical-align: top;
}

.admin-table th {
    background: #f5f8ff;
    color: #4f6480;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.admin-table-input {
    width: 100%;
    min-height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #ffffff;
    color: var(--text);
    padding: 8px 10px;
    font-size: 13px;
}

.admin-table-input-number {
    min-width: 92px;
}

.admin-table-actions {
    display: grid;
    gap: 6px;
}

.mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 12px;
}

.admin-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 24px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    padding: 0 10px;
}

.admin-badge.ok {
    background: rgba(63, 139, 98, 0.14);
    color: #1e6b42;
}

.admin-badge.warn {
    background: rgba(183, 135, 41, 0.16);
    color: #7f5e1b;
}

.admin-pagination {
    margin-top: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-pagination p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.admin-pagination-actions {
    display: flex;
    gap: 8px;
}

.admin-login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 14px;
}

.admin-login-wrap {
    width: min(100%, 440px);
}

.admin-login-card {
    background: var(--panel);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-radius: 18px;
    padding: 18px;
}

.admin-login-kicker {
    margin: 0;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 11px;
}

.admin-login-card h1 {
    margin: 5px 0 0;
    font-size: 24px;
}

.admin-login-subtitle {
    margin: 3px 0 14px;
    color: var(--muted);
    font-size: 14px;
}

.admin-back-link {
    margin-top: 10px;
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
}

@media (max-width: 920px) {
    .admin-app-shell {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        padding: 14px;
    }

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

    .admin-main {
        padding: 12px;
    }

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

    .admin-top-actions {
        width: 100%;
        justify-content: flex-start;
    }
}