/* Serenest Education — Admin dashboard */

:root {
    --admin-band: #E6E0D4;
    --admin-sidebar: #F2EDE3;
    --admin-ink: #14201E;
    --admin-muted: #6E7B78;
    --admin-sage: #6F8F7E;
    --admin-sage-dark: #4F6B5C;
    --admin-rule: rgba(20, 32, 30, 0.12);
    --admin-pending: #8B6914;
    --admin-confirmed: #4F6B5C;
    --admin-attended: #5A8088;
}

body.admin-body {
    background: var(--admin-band);
    min-height: 100vh;
}

body.admin-body::before {
    opacity: 0.35;
}

/* Login gate */
.admin-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.admin-login-card {
    background: var(--paper);
    border: 1px solid var(--rule);
    padding: 48px 44px;
    max-width: 420px;
    width: 100%;
    box-shadow: 0 8px 40px rgba(20, 32, 30, 0.08);
}

.admin-login-card .brand {
    display: block;
    text-align: center;
    margin-bottom: 8px;
    font-size: 28px;
}

.admin-login-eyebrow {
    text-align: center;
    color: var(--sage-dark);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 32px;
    display: block;
}

.admin-login-card .modal-text-field {
    margin-bottom: 16px;
}

.admin-login-error {
    color: #8B3A3A;
    font-size: 14px;
    margin-top: 12px;
    display: none;
    text-align: center;
}

.admin-login-error.visible {
    display: block;
}

.admin-login-hint {
    font-size: 12px;
    color: var(--ink-light);
    text-align: center;
    margin-top: 20px;
    line-height: 1.5;
}

/* Shell layout */
.admin-shell {
    display: none;
    min-height: 100vh;
}

.admin-shell.active {
    display: grid;
    grid-template-columns: 240px 1fr;
}

.admin-sidebar {
    background: var(--admin-sidebar);
    border-right: 1px solid var(--admin-rule);
    padding: 28px 0;
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.admin-sidebar-brand {
    padding: 0 24px 28px;
    border-bottom: 1px solid var(--admin-rule);
    margin-bottom: 16px;
}

.admin-sidebar-brand .brand {
    font-size: 20px;
    display: block;
    margin-bottom: 4px;
}

.admin-sidebar-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--admin-sage-dark);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.admin-nav {
    list-style: none;
    flex: 1;
    padding: 0 12px;
}

.admin-nav-item {
    margin-bottom: 4px;
}

.admin-nav-btn {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 12px 16px;
    font-family: var(--font-serif-body);
    font-size: 15px;
    color: var(--ink-soft);
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-nav-btn:hover {
    background: rgba(111, 143, 126, 0.1);
    color: var(--ink);
}

.admin-nav-btn.active {
    background: #fff;
    color: var(--ink);
    box-shadow: 0 2px 8px rgba(20, 32, 30, 0.06);
}

.admin-nav-icon {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--admin-sage);
    width: 20px;
}

.admin-sidebar-footer {
    padding: 20px 24px 0;
    border-top: 1px solid var(--admin-rule);
    margin-top: auto;
}

.admin-sidebar-footer a,
.admin-sidebar-footer button {
    font-size: 13px;
    color: var(--ink-light);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-serif-body);
    padding: 0;
    text-decoration: none;
    display: block;
    margin-bottom: 8px;
}

.admin-sidebar-footer a:hover,
.admin-sidebar-footer button:hover {
    color: var(--ink);
}

/* Main content */
.admin-main {
    padding: 36px 40px 60px;
    overflow-x: auto;
}

.admin-panel {
    display: none;
    animation: transitionFadeIn 0.4s ease;
}

.admin-panel.active {
    display: block;
}

.admin-page-header {
    margin-bottom: 32px;
}

.admin-page-title {
    font-family: var(--font-serif-display);
    font-variation-settings: 'SOFT' 60, 'opsz' 80;
    font-size: clamp(28px, 3vw, 36px);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin: 8px 0 10px;
}

.admin-page-lede {
    color: var(--ink-soft);
    font-size: 16px;
    max-width: 560px;
}

/* Stat cards */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 36px;
}

.admin-stat-card {
    background: var(--paper);
    border: 1px solid var(--admin-rule);
    padding: 24px;
}

.admin-stat-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--admin-muted);
    margin-bottom: 8px;
}

.admin-stat-value {
    font-family: var(--font-serif-display);
    font-size: 36px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1;
}

.admin-stat-value--pending { color: var(--admin-pending); }
.admin-stat-value--confirmed { color: var(--admin-confirmed); }

/* Toolbar */
.admin-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--admin-rule);
}

.admin-filter-select,
.admin-search-input {
    font-family: var(--font-serif-body);
    font-size: 14px;
    padding: 10px 14px;
    border: 1px solid var(--admin-rule);
    background: var(--paper);
    color: var(--ink);
    outline: none;
}

.admin-search-input {
    min-width: 220px;
    flex: 1;
    max-width: 320px;
}

.admin-filter-select:focus,
.admin-search-input:focus {
    border-color: var(--admin-sage);
}

/* Table */
.admin-table-wrap {
    background: var(--paper);
    border: 1px solid var(--admin-rule);
    overflow-x: auto;
}

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

.admin-table th {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-align: left;
    padding: 14px 16px;
    background: var(--paper-soft);
    color: var(--admin-muted);
    border-bottom: 1px solid var(--admin-rule);
    white-space: nowrap;
}

.admin-table td {
    padding: 16px;
    border-bottom: 1px solid var(--admin-rule);
    vertical-align: top;
    color: var(--ink-soft);
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover td {
    background: rgba(111, 143, 126, 0.04);
}

.admin-table-name {
    color: var(--ink);
    font-weight: 500;
}

.admin-table-email {
    font-size: 13px;
    word-break: break-all;
}

#ledgerEmpty {
    display: none;
}

#ledgerEmpty.visible {
    display: block;
}

.admin-empty {
    text-align: center;
    padding: 60px 24px;
    color: var(--ink-light);
}

.admin-empty strong {
    display: block;
    color: var(--ink-soft);
    margin-bottom: 8px;
    font-weight: 500;
}

/* Status badges */
.status-badge {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 2px;
    white-space: nowrap;
    display: inline-block;
}

.status-badge--pending {
    background: rgba(139, 105, 20, 0.12);
    color: var(--admin-pending);
}

.status-badge--confirmed {
    background: var(--sage-faint);
    color: var(--admin-confirmed);
}

.status-badge--attended {
    background: rgba(90, 128, 136, 0.12);
    color: var(--admin-attended);
}

/* Row actions */
.admin-row-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.admin-action-btn {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 6px 10px;
    border: 1px solid var(--admin-rule);
    background: transparent;
    color: var(--ink-soft);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.admin-action-btn:hover {
    border-color: var(--ink);
    color: var(--ink);
}

.admin-action-btn--primary {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--paper);
}

.admin-action-btn--primary:hover {
    background: var(--admin-sage-dark);
    border-color: var(--admin-sage-dark);
    color: var(--paper);
}

.admin-action-btn--danger:hover {
    border-color: #8B3A3A;
    color: #8B3A3A;
}

/* Forms grid */
.admin-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 720px;
}

.admin-form-grid .form-input-pair--full {
    grid-column: 1 / -1;
}

.admin-card {
    background: var(--paper);
    border: 1px solid var(--admin-rule);
    padding: 32px;
    margin-bottom: 24px;
    max-width: 720px;
}

.admin-card-title {
    font-family: var(--font-serif-display);
    font-size: 22px;
    margin-bottom: 6px;
}

.admin-card-desc {
    font-size: 14px;
    color: var(--ink-soft);
    margin-bottom: 24px;
    line-height: 1.5;
}

/* Template blocks */
.template-block {
    background: var(--paper-soft);
    border: 1px solid var(--admin-rule);
    padding: 20px;
    margin-bottom: 16px;
}

.template-block-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 12px;
}

.template-block-title {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--admin-sage-dark);
}

.template-preview {
    font-size: 14px;
    color: var(--ink-soft);
    line-height: 1.55;
    white-space: pre-wrap;
    margin-bottom: 12px;
}

.template-vars {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--ink-light);
    margin-bottom: 12px;
}

/* Toast */
.admin-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--ink);
    color: var(--paper);
    padding: 14px 24px;
    font-size: 14px;
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.admin-toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Quick add drawer */
.admin-quick-add {
    background: var(--paper);
    border: 1px solid var(--admin-rule);
    padding: 28px;
    margin-bottom: 28px;
}

.admin-quick-add summary {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--admin-sage-dark);
    cursor: pointer;
    list-style: none;
    margin-bottom: 0;
}

.admin-quick-add[open] summary {
    margin-bottom: 20px;
}

.admin-quick-add summary::-webkit-details-marker {
    display: none;
}

/* Settings */
.admin-settings-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 16px;
}

@media (max-width: 900px) {
    .admin-shell.active {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: relative;
        height: auto;
        padding-bottom: 16px;
    }

    .admin-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
    }

    .admin-nav-item {
        margin-bottom: 0;
    }

    .admin-main {
        padding: 24px 20px 48px;
    }

    .admin-form-grid {
        grid-template-columns: 1fr;
    }
}