:root {
    --bg: #e8eef5;
    --card-bg: #ffffff;
    --border-subtle: rgba(26, 26, 46, 0.08);
    --text: #1a1a2e;
    --muted: #5a6578;
    --accent: #4a6fa5;
    --accent-soft: rgba(74, 111, 165, 0.08);
    --accent-strong: rgba(74, 111, 165, 0.14);
    --radius-lg: 18px;
    --radius-md: 12px;
    --shadow-soft: 0 16px 32px rgba(26, 26, 46, 0.12);
}

/* Reset and layout */

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

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top, #e8eef5 0, transparent 45%),
        radial-gradient(circle at bottom, #dce4ed 0, var(--bg) 55%);
    color: var(--text);
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top bar */

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 28px;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(148, 163, 184, 0.28);
    backdrop-filter: blur(14px);
    position: sticky;
    top: 0;
    z-index: 20;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: conic-gradient(
        from 160deg,
        #a5b4fc,
        #5eead4,
        #f9a8d4,
        #a5b4fc
    );
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.06em;
    color: #111827;
}

.top-bar-title {
    display: flex;
    flex-direction: column;
}

.top-bar-title .sub {
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}

.top-bar-title .main {
    font-size: 15px;
    font-weight: 600;
}

.top-bar-nav {
    display: flex;
    gap: 12px;
    font-size: 14px;
}

.top-bar-nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition:
        background 0.15s ease,
        color 0.15s ease,
        border-color 0.15s ease,
        box-shadow 0.15s ease;
}

.top-bar-nav a:hover {
    background: rgba(148, 163, 184, 0.12);
    color: var(--text);
    border-color: rgba(148, 163, 184, 0.35);
    box-shadow: 0 6px 16px rgba(148, 163, 184, 0.35);
}

.top-bar-nav a.active {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
}

/* Page */

.page {
    padding: 28px 40px 40px;
    max-width: none;
    width: 100%;
    margin: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 22px;
}

/* Admin Dashboard Header - Standalone styles */
.admin-header {
    background: linear-gradient(135deg, #2d5a8a 0%, #3d6a9a 100%);
    padding: 28px 32px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(45,90,138,0.3);
}

.admin-header h1 {
    margin: 0 0 8px 0;
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.admin-header p {
    margin: 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

/* Stats row */

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

@media (max-width: 1024px) {
    .stats-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .stats-row {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background:
        radial-gradient(circle at top left, rgba(148, 163, 253, 0.16), transparent 55%),
        var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-subtle);
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.10);
    padding: 14px 16px 12px;
}

.stat-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 4px;
}

.stat-sub {
    font-size: 12px;
    color: var(--muted);
}

/* Main grid */

.grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.4fr);
    gap: 20px;
    align-items: flex-start;
}

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

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

    .grid .card-wide {
        grid-column: auto;
    }
}

/* Cards */

.card {
    background:
        radial-gradient(circle at top left, rgba(148, 163, 253, 0.12), transparent 55%),
        radial-gradient(circle at bottom right, rgba(45, 212, 191, 0.1), transparent 52%),
        var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-soft);
    padding: 20px 20px 18px;
    display: flex;
    flex-direction: column;
}

.card h2 {
    margin: 0 0 4px;
    font-size: 18px;
    font-weight: 600;
}

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

/* Quick actions */

.actions-grid {
    margin-top: 8px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

@media (max-width: 720px) {
    .actions-grid {
        grid-template-columns: 1fr;
    }
}

.action-card {
    display: flex;
    flex-direction: column;
    padding: 12px 12px 10px;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.7);
    background: linear-gradient(135deg, #ffffff, #f9fafb);
    text-decoration: none;
    color: var(--text);
    transition:
        border-color 0.16s ease,
        background 0.16s ease,
        box-shadow 0.12s ease,
        transform 0.08s ease;
}

.action-card:hover {
    border-color: var(--accent);
    background: radial-gradient(circle at top left, var(--accent-strong), #f9fafb);
    box-shadow: 0 10px 24px rgba(148, 163, 184, 0.4);
    transform: translateY(-1px);
}

.action-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.action-desc {
    font-size: 12px;
    color: var(--muted);
}

/* User metrics */

.user-metrics {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 6px;
}

.user-metric .metric-label {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
}

.metric-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 999px;
    background: #e8eef5;
    color: #1a1a2e;
}

.user-links {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
}

.user-links a {
    color: var(--accent);
    text-decoration: none;
}

.user-links a:hover {
    text-decoration: underline;
}

/* Activity list */

.activity-list {
    list-style: none;
    margin: 8px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.activity-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 8px 10px;
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    background: rgba(249, 250, 251, 0.85);
}

.activity-title {
    font-size: 13px;
    font-weight: 500;
}

.activity-meta {
    font-size: 11px;
    color: var(--muted);
}

.activity-pill {
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 999px;
    background: #e5e7eb;
    color: #374151;
}

.activity-pill-green {
    background: #dcfce7;
    color: #166534;
}

.activity-pill-purple {
    background: #e8eef5;
    color: #1a1a2e;
}

/* ============================================
   DARK MODE OVERRIDES
   ============================================ */

[data-theme="dark"] {
    --bg: #0f0f1a;
    --card-bg: #1a1a2e;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --text: #e8eef5;
    --muted: #9ca3af;
    --accent: #6b8cbe;
    --accent-soft: rgba(107, 140, 190, 0.15);
    --accent-strong: rgba(107, 140, 190, 0.25);
    --shadow-soft: 0 16px 32px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] body {
    background:
        radial-gradient(circle at top, #1a1a2e 0, transparent 45%),
        radial-gradient(circle at bottom, #0f0f1a 0, var(--bg) 55%);
}

[data-theme="dark"] .top-bar {
    background: rgba(26, 26, 46, 0.96);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .top-bar-nav a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .admin-header {
    background: linear-gradient(135deg, #1f3a5c 0%, #2d5a8a 100%);
}

[data-theme="dark"] .stat-card {
    background:
        radial-gradient(circle at top left, rgba(107, 140, 190, 0.16), transparent 55%),
        var(--card-bg);
    border-color: var(--border-subtle);
}

[data-theme="dark"] .card {
    background:
        radial-gradient(circle at top left, rgba(107, 140, 190, 0.12), transparent 55%),
        radial-gradient(circle at bottom right, rgba(45, 212, 191, 0.08), transparent 52%),
        var(--card-bg);
    border-color: var(--border-subtle);
}

[data-theme="dark"] .action-card {
    border-color: rgba(255, 255, 255, 0.12);
    background: linear-gradient(135deg, #1f1f35, #252540);
}

[data-theme="dark"] .action-card:hover {
    border-color: var(--accent);
    background: radial-gradient(circle at top left, var(--accent-strong), #252540);
}

[data-theme="dark"] .tag {
    background: #2d2d44;
    color: var(--text);
}

[data-theme="dark"] .activity-item {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(31, 31, 53, 0.85);
}

[data-theme="dark"] .activity-pill {
    background: #2d2d44;
    color: #9ca3af;
}

[data-theme="dark"] .activity-pill-green {
    background: rgba(16, 185, 129, 0.2);
    color: #4ade80;
}

[data-theme="dark"] .activity-pill-purple {
    background: rgba(107, 140, 190, 0.2);
    color: var(--accent);
}

/* Tables in admin pages (users.html, access-logs.html) */
[data-theme="dark"] .users-table,
[data-theme="dark"] .logs-table {
    background: var(--card-bg);
}

[data-theme="dark"] .users-table th,
[data-theme="dark"] .logs-table th {
    background: #1f1f35;
    color: var(--muted);
    border-color: var(--border-subtle);
}

[data-theme="dark"] .users-table td,
[data-theme="dark"] .logs-table td {
    border-color: var(--border-subtle);
    color: var(--text);
}

[data-theme="dark"] .users-table tr:hover td,
[data-theme="dark"] .logs-table tr:hover td {
    background: #252540;
}

/* Buttons */
[data-theme="dark"] .btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #8aa8d4 100%);
}

[data-theme="dark"] .btn-outline {
    background: var(--card-bg);
    color: var(--text);
    border-color: var(--border-subtle);
}

[data-theme="dark"] .btn-outline:hover {
    background: #252540;
}

/* Status badges */
[data-theme="dark"] .status-active {
    background: rgba(16, 185, 129, 0.2);
    color: #4ade80;
}

[data-theme="dark"] .status-inactive {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

/* Input fields */
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: #1f1f35;
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--text);
}

[data-theme="dark"] input::placeholder {
    color: #6b7280;
}