/* ============================================================
   Stercus Bioanalytics Admin Portal — Styles
   Dark theme matching the portal prototype aesthetic
   ============================================================ */

:root {
    --bg-primary: #0f1729;
    --bg-secondary: #1a2332;
    --bg-tertiary: #243044;
    --bg-card: #1e2a3a;
    --border-color: #2d3d50;
    --border-light: #374a5e;
    --text-primary: #e8edf5;
    --text-secondary: #8899aa;
    --text-muted: #667788;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-soft: rgba(59, 130, 246, 0.15);
    --success: #22c55e;
    --success-soft: rgba(34, 197, 94, 0.15);
    --warning: #f59e0b;
    --warning-soft: rgba(245, 158, 11, 0.15);
    --danger: #ef4444;
    --danger-soft: rgba(239, 68, 68, 0.15);
    --sidebar-width: 240px;
    --header-height: 60px;
    --radius: 8px;
    --radius-sm: 6px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ============================================================
   Layout
   ============================================================ */

.layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 10;
}

.sidebar-header {
    padding: 20px 16px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand h1 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--text-primary);
}

.sidebar-brand p {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.sidebar-portal-label {
    font-size: 9px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 0 12px 8px;
    opacity: 0.6;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s ease;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-soft);
    color: var(--accent);
}

.nav-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

.admin-info {
    padding: 8px 12px;
    margin-bottom: 4px;
}

.admin-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.admin-email {
    font-size: 11px;
    color: var(--text-muted);
}

.logout-link { color: var(--text-muted) !important; }
.logout-link:hover { color: var(--danger) !important; }

/* Main content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    min-height: var(--header-height);
}

.page-title {
    font-size: 18px;
    font-weight: 600;
}

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

.content {
    padding: 24px 28px;
    flex: 1;
}

/* ============================================================
   Flash messages
   ============================================================ */

.flash {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 500;
}

.flash-success {
    background: var(--success-soft);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.flash-error {
    background: var(--danger-soft);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.flash-warning {
    background: var(--warning-soft);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.flash-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 18px;
    padding: 0 4px;
    opacity: 0.7;
}

.flash-close:hover { opacity: 1; }

/* ============================================================
   Cards & Stats
   ============================================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-value.text-success { color: var(--success); }
.stat-value.text-warning { color: var(--warning); }
.stat-value.text-danger { color: var(--danger); }
.stat-value.text-accent { color: var(--accent); }

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.card-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
}

.card-body {
    padding: 18px;
}

/* ============================================================
   Tables
   ============================================================ */

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead th {
    text-align: left;
    padding: 10px 14px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

/* Sortable table headers */
thead th.sortable {
    cursor: pointer;
    user-select: none;
    transition: color 0.15s;
}

thead th.sortable:hover {
    color: var(--text-primary);
}

thead th.sortable::after {
    content: ' \2195';
    opacity: 0.4;
    font-size: 10px;
}

thead th.sortable.sort-asc::after {
    content: ' \2191';
    opacity: 1;
    color: var(--accent);
}

thead th.sortable.sort-desc::after {
    content: ' \2193';
    opacity: 1;
    color: var(--accent);
}

tbody td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
}

tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: white;
}
.btn-primary:hover { background: var(--accent-hover); color: white; }

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover { color: var(--text-primary); border-color: var(--border-light); }

.btn-danger {
    background: var(--danger-soft);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

.btn-success {
    background: var(--success-soft);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}
.btn-success:hover { background: rgba(34, 197, 94, 0.25); }

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-icon {
    padding: 6px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.btn-icon:hover { color: var(--text-primary); border-color: var(--border-light); }

/* ============================================================
   Forms
   ============================================================ */

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 9px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    transition: border-color 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.form-input::placeholder { color: var(--text-muted); }

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23667788' viewBox='0 0 20 20'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    padding-right: 36px;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* ============================================================
   Status badges
   ============================================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 99px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-active {
    background: var(--success-soft);
    color: var(--success);
}

.badge-inactive {
    background: var(--warning-soft);
    color: var(--warning);
}

.badge-locked {
    background: var(--danger-soft);
    color: var(--danger);
}

.badge-new {
    background: var(--accent-soft);
    color: var(--accent);
}

.badge-deactivated {
    background: rgba(100, 116, 139, 0.15);
    color: #94a3b8;
}

/* ============================================================
   Search & filters
   ============================================================ */

.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 250px;
    padding: 9px 12px 9px 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23667788' viewBox='0 0 20 20'%3E%3Cpath fill-rule='evenodd' d='M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 10px center;
    background-size: 16px;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
}

.filter-group {
    display: flex;
    gap: 2px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    padding: 2px;
}

.filter-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
}

.filter-btn:hover { color: var(--text-primary); }

.filter-btn.active {
    background: var(--accent-soft);
    color: var(--accent);
}

/* ============================================================
   Modal / confirmation dialog
   ============================================================ */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    width: 90%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.modal-text {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ============================================================
   User detail page
   ============================================================ */

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.detail-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.detail-value {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

/* ============================================================
   Login page
   ============================================================ */

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 36px 28px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 6px;
    color: var(--text-primary);
}

.login-logo p {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 4px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.google-signin-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: white;
    color: #333;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: box-shadow 0.15s;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    width: 100%;
    justify-content: center;
}

.google-signin-btn:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    color: #333;
}

.google-icon {
    width: 20px;
    height: 20px;
}

.login-note {
    margin-top: 20px;
    font-size: 12px;
    color: var(--text-muted);
}

/* ============================================================
   CSV upload / bulk import
   ============================================================ */

.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s;
}

.upload-zone:hover { border-color: var(--accent); }

.upload-zone-text {
    color: var(--text-secondary);
    font-size: 14px;
}

.upload-zone-hint {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 8px;
}

/* ============================================================
   HTMX loading indicator
   ============================================================ */

.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline-block;
}

.htmx-request.htmx-indicator {
    display: inline-block;
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================================
   Empty states
   ============================================================ */

.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.3;
}

.empty-state-text {
    font-size: 14px;
}

/* ============================================================
   Utility classes
   ============================================================ */

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-sm { font-size: 12px; }
.font-mono { font-family: 'SF Mono', Menlo, monospace; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.gap-2 { gap: 8px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 250px; }

/* ============================================================
   Two-column grid layout
   ============================================================ */

.grid-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

/* ============================================================
   Clickable table rows
   ============================================================ */

.clickable-row {
    cursor: pointer;
    transition: background 0.1s ease;
}

.clickable-row:hover {
    background: rgba(255, 255, 255, 0.04) !important;
}

/* ============================================================
   Modal show/hide
   ============================================================ */

.modal-backdrop {
    display: none;
}

.modal-backdrop.open {
    display: flex;
}

/* ============================================================
   Settings page
   ============================================================ */

.hidden-users-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.hidden-users-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
}

.hidden-users-list li:last-child {
    border-bottom: none;
}

.hidden-users-list .remove-hidden {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.15s;
}

.hidden-users-list .remove-hidden:hover {
    color: var(--danger);
    background: var(--danger-soft);
}

.add-hidden-form {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.add-hidden-form .form-input {
    flex: 1;
}

/* Hidden user row toggle */
tr.user-hidden {
    display: none;
}

.show-hidden tr.user-hidden {
    display: table-row;
    opacity: 0.5;
}

/* Timezone indicator */
.tz-label {
    font-size: 10px;
    color: var(--text-muted);
    margin-left: 4px;
}