@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

:root {
    color-scheme: dark;
    --bg-body: #050910;
    --bg-surface: rgba(8, 16, 32, 0.94);
    --bg-surface-strong: rgba(12, 24, 48, 0.96);
    --sidebar-bg: linear-gradient(195deg, rgba(8, 21, 45, 0.96), rgba(4, 12, 26, 0.98));
    --sidebar-border: rgba(33, 150, 243, 0.25);
    --main-gradient: radial-gradient(circle at 8% 10%, rgba(0, 188, 212, 0.18), transparent 55%),
                      radial-gradient(circle at 88% 12%, rgba(124, 77, 255, 0.22), transparent 62%),
                      linear-gradient(160deg, #070f1f 0%, #0c1a36 38%, #112549 100%);
    --card-bg: rgba(255, 255, 255, 0.04);
    --card-bg-strong: rgba(0, 0, 0, 0.35);
    --border-color: rgba(0, 188, 212, 0.18);
    --text-color: #f0f6ff;
    --text-muted: rgba(210, 226, 255, 0.68);
    --accent-color: #00bcd4;
    --accent-color-alt: #7c4dff;
    --success-color: #12c48b;
    --danger-color: #ff4f5e;
    --warning-color: #ffb74d;
    --info-color: #2196f3;
    --shadow-soft: 0 22px 50px rgba(3, 9, 25, 0.45);
    --shadow-hard: 0 32px 70px rgba(2, 8, 20, 0.62);
}

[data-theme="light"] {
    color-scheme: light;
    --bg-body: #f4f6fb;
    --bg-surface: rgba(255, 255, 255, 0.95);
    --bg-surface-strong: rgba(255, 255, 255, 0.99);
    --sidebar-bg: linear-gradient(190deg, #e1f2ff, #f0e8ff);
    --sidebar-border: rgba(2, 136, 209, 0.18);
    --main-gradient: radial-gradient(circle at 4% -8%, rgba(0, 188, 212, 0.2), transparent 60%),
                      radial-gradient(circle at 90% 15%, rgba(124, 77, 255, 0.2), transparent 62%),
                      linear-gradient(165deg, #f8fbff 0%, #ebf1ff 45%, #f5f0ff 100%);
    --card-bg: rgba(255, 255, 255, 0.88);
    --card-bg-strong: rgba(255, 255, 255, 0.98);
    --border-color: rgba(9, 37, 68, 0.12);
    --text-color: #0b172c;
    --text-muted: rgba(10, 31, 55, 0.65);
    --accent-color: #0288d1;
    --accent-color-alt: #5e35b1;
    --success-color: #148f6a;
    --danger-color: #c62828;
    --warning-color: #ef6c00;
    --info-color: #1976d2;
    --shadow-soft: 0 22px 40px rgba(15, 32, 55, 0.15);
    --shadow-hard: 0 28px 52px rgba(15, 32, 55, 0.2);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-body);
    color: var(--text-color);
    min-height: 100vh;
}

body.layout-body {
    overflow-x: hidden;
}

.app-shell {
    min-height: 100vh;
    background: var(--main-gradient);
}

.app-sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: var(--text-color);
    padding: 1.5rem 1.25rem;
    border-right: 1px solid var(--sidebar-border);
    box-shadow: var(--shadow-hard);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    min-height: 100vh;
    z-index: 1040;
    transition: transform 0.3s ease;
}

.sidebar-header {
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.sidebar-logo {
    width: 52px;
    height: 52px;
}

.sidebar-title {
    display: block;
    font-weight: 600;
    font-size: 1.1rem;
}

.sidebar-subtitle {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.2em;
}

.sidebar-nav .nav-link {
    color: var(--text-muted);
    font-weight: 500;
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.25s ease;
}

.sidebar-nav .nav-link i {
    font-size: 1.1rem;
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    color: var(--text-color);
    background: linear-gradient(120deg, rgba(42, 212, 255, 0.25), rgba(143, 106, 255, 0.22));
    box-shadow: 0 12px 25px rgba(16, 24, 56, 0.25);
}

.sidebar-footer {
    margin-top: 3rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.app-main {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    backdrop-filter: blur(12px);
}

.app-topbar {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1030;
}

.topbar-meta span:first-child {
    color: var(--text-color);
    font-size: 0.95rem;
}

.topbar-meta span:last-child {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.theme-switch .form-check-input {
    width: 3rem;
    height: 1.5rem;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.15);
    border-color: transparent;
}

.theme-switch .form-check-input:checked {
    background-color: rgba(42, 212, 255, 0.7);
}

.theme-switch .form-check-label i {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.avatar-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-alt));
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.content-wrapper {
    max-width: 1440px;
    margin: 0 auto;
    width: 100%;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    box-shadow: var(--shadow-soft);
    border-radius: 1.2rem;
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    font-weight: 600;
}

.table {
    color: var(--text-color);
}

.table thead {
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr {
    transition: background 0.25s ease;
}

.table tbody tr:hover {
    background-color: rgba(42, 212, 255, 0.08);
}

.list-group-item {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-color);
}

.list-item-label {
    display: inline-flex;
    align-items: center;
    min-width: 0;
    word-break: break-word;
    color: var(--text-color);
    transition: color 0.2s ease;
}

.list-group-item .list-item-label:hover {
    color: var(--accent-color);
}

.list-group-item .btn {
    white-space: nowrap;
}

.badge {
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
}

.bg-gradient {
    background: linear-gradient(120deg, rgba(0, 188, 212, 0.55), rgba(124, 77, 255, 0.55));
    color: #fff;
    border: none;
    box-shadow: 0 14px 32px rgba(2, 10, 28, 0.45);
}

.dashboard-header {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.dashboard-header .headline {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.dashboard-header .headline h2 {
    font-weight: 600;
    margin: 0;
    font-size: 2rem;
    background: linear-gradient(90deg, #ffffff 0%, #95b6ff 55%, #2ad4ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.dashboard-header .headline p {
    color: var(--text-muted);
}

.dashboard-header .welcome-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.2rem 1.5rem;
}

.stat-card {
    border-radius: 1.1rem;
    padding: 1.2rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-card-link {
    text-decoration: none;
    color: inherit;
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 45px rgba(4, 16, 40, 0.45);
}

.stat-card-icon {
    font-size: 1.6rem;
}

.stat-card-label {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.stat-card-value {
    margin: 0;
    font-size: 2rem;
    font-weight: 600;
}

.table {
    color: var(--text-color);
}

.table thead th {
    color: var(--text-muted);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.table tbody td {
    color: var(--text-color);
}

.realtime-card {
    border: 1px solid var(--border-color);
    border-radius: 1.1rem;
    background: var(--bg-surface);
    box-shadow: var(--shadow-soft);
}

.realtime-card .card-header,
.chart-card .card-header,
.security-card .card-header {
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-color);
}

.metric-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
}

.metric-block:last-child {
    border-bottom: none;
}

.metric-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.metric-value {
    font-weight: 600;
    font-size: 1.4rem;
    color: var(--accent-color);
}

.metric-pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.6rem;
}

.metric-pill {
    background: rgba(0, 188, 212, 0.12);
    color: var(--accent-color);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
}

.security-card {
    border: 1px solid var(--border-color);
    border-radius: 1.1rem;
    background: var(--bg-surface);
    box-shadow: var(--shadow-soft);
}

.security-section + .security-section {
    margin-top: 1.5rem;
}

.security-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.security-card ul li {
    padding: 0.4rem 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
    font-size: 0.9rem;
}

.security-card ul li:last-child {
    border-bottom: none;
}

.inactive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.5rem;
}

.inactive-chip {
    background: rgba(255, 79, 94, 0.12);
    color: var(--danger-color);
    padding: 0.45rem 0.6rem;
    border-radius: 0.75rem;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.chart-card {
    min-height: 100%;
}

.dashboard-section {
    margin-top: 2.5rem;
}

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(7, 10, 29, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
}

[data-theme="light"] .loading-overlay {
    background: rgba(245, 247, 253, 0.7);
}

.alert {
    border-radius: 1rem;
}

.search-bar .form-control {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color);
    color: var(--text-color);
}

.search-bar .form-control:focus {
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 0.25rem rgba(42, 212, 255, 0.25);
}

.profile-photo-frame {
    position: relative;
    width: 180px;
    height: 180px;
    margin: 0 auto;
    border-radius: 1.5rem;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(42, 212, 255, 0.25), rgba(143, 106, 255, 0.25));
    padding: 0.5rem;
    box-shadow: var(--shadow-soft);
}

.profile-photo-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1.2rem;
}

.status-chip {
    position: absolute;
    top: 0.8rem;
    left: 0.8rem;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.photo-actions {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

#status-badges .badge {
    margin-bottom: 0.35rem;
}

.modal-content {
    background: var(--bg-surface);
    color: var(--text-color);
    border-radius: 1.2rem;
    border: 1px solid var(--border-color);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
}

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

.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: radial-gradient(circle at top, rgba(13, 202, 240, 0.12), transparent 60%);
}

.login-card {
    background-color: var(--bg-surface-strong);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-hard);
}

.login-card .form-control {
    background-color: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-color);
}

[data-theme="light"] .login-card .form-control {
    background-color: rgba(255, 255, 255, 0.85);
    color: var(--text-color);
}

.login-card .btn-primary {
    background: linear-gradient(90deg, var(--accent-color), var(--accent-color-alt));
    border: none;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.login-card .text-muted {
    color: rgba(255, 255, 255, 0.65) !important;
}

[data-theme="light"] .login-card .text-muted {
    color: rgba(19, 26, 51, 0.6) !important;
}

@media (max-width: 991.98px) {
    .app-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        max-width: 260px;
    }

    body.sidebar-open .app-sidebar {
        transform: translateX(0);
    }

    body.sidebar-open::after {
        content: "";
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.45);
        z-index: 1035;
    }
}

@media (max-width: 575.98px) {
    .dashboard-header .welcome-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .profile-photo-frame {
        width: 150px;
        height: 150px;
    }
}