:root {
    --clinic-primary: #0f4c81;
    --clinic-primary-dark: #0b3b64;
    --clinic-accent: #1f9d8b;
    --clinic-bg: #f4f7fb;
    --clinic-surface: #ffffff;
    --clinic-border: #dbe4ef;
    --clinic-text: #1b2635;
    --clinic-muted: #5b6b80;
    --sidebar-width: 250px;
    --header-height: 62px;
    --surface-soft: #f8fbff;
    --shadow-soft: 0 6px 22px rgba(15, 76, 129, 0.07);
}

* {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    background: linear-gradient(180deg, #f8fbff 0%, var(--clinic-bg) 100%);
    color: var(--clinic-text);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.top-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1040;
    height: var(--header-height);
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--clinic-primary-dark), var(--clinic-primary));
    color: #fff;
    box-shadow: 0 3px 12px rgba(15, 76, 129, 0.18);
}

.brand {
    font-weight: 700;
    letter-spacing: 0.2px;
}

.top-header .btn-link,
.top-header .btn-link:hover,
.top-header .btn-link:focus,
.top-header .dropdown-toggle,
.top-header .dropdown-toggle:hover,
.top-header .dropdown-toggle:focus {
    text-decoration: none !important;
}

.mobile-menu-toggle {
    border: 0;
    background: transparent;
    color: #fff;
    font-size: 1.1rem;
    display: none;
}

.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    background: #fff;
    border-right: 1px solid var(--clinic-border);
    box-shadow: 0 4px 18px rgba(15, 76, 129, 0.06);
    z-index: 1030;
}

.sidebar .navbar-nav {
    width: 100%;
    padding: 0.75rem;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    border-radius: 10px;
    padding: 0.65rem 0.75rem;
    color: var(--clinic-text);
    font-weight: 600;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.sidebar .nav-link i {
    width: 1.25rem;
    text-align: center;
    color: var(--clinic-primary);
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: rgba(15, 76, 129, 0.1);
    color: var(--clinic-primary-dark);
}

.sidebar .nav-link.active i {
    color: var(--clinic-accent);
}

.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 1.25rem;
    min-height: calc(100vh - var(--header-height));
}

.card {
    border: 1px solid var(--clinic-border);
    border-radius: 12px;
    box-shadow: var(--shadow-soft);
    background: var(--clinic-surface);
}

.card-header {
    font-weight: 700;
    border-bottom: 1px solid var(--clinic-border);
    background: var(--surface-soft);
}

.table {
    --bs-table-striped-bg: #f8fbff;
    --bs-table-bg: transparent;
}

.table thead th {
    font-weight: 700;
    color: #28425f;
    border-bottom-width: 1px;
}

.btn-primary {
    background-color: var(--clinic-primary);
    border-color: var(--clinic-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--clinic-primary-dark);
    border-color: var(--clinic-primary-dark);
}

.form-control, .form-select {
    border-color: #c9d6e6;
    background: #fff;
    color: var(--clinic-text);
}

.form-control:focus, .form-select:focus {
    border-color: var(--clinic-primary);
    box-shadow: 0 0 0 0.2rem rgba(15, 76, 129, 0.18);
}

.form-control::placeholder {
    color: #7f92aa;
}

.nav-tabs .nav-link {
    color: var(--clinic-muted);
    border: 1px solid transparent;
    font-weight: 600;
}

.nav-tabs .nav-link.active {
    color: var(--clinic-primary-dark);
    border-color: var(--clinic-border) var(--clinic-border) transparent;
    background: var(--clinic-surface);
}

.dropdown-menu {
    border: 1px solid var(--clinic-border);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.dropdown-item {
    color: var(--clinic-text);
}

.dropdown-item:hover {
    background: #f1f6fd;
}

.site-global-footer {
    margin-left: var(--sidebar-width);
    border-top: 1px solid var(--clinic-border);
    background: #eef3f9;
    color: #24374d;
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(8, 24, 40, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 1025;
}

.sidebar-overlay.show {
    opacity: 1;
    pointer-events: all;
}

[data-theme="dark"] body {
    --clinic-bg: #0b0d10;
    --clinic-surface: #121417;
    --surface-soft: #171a1e;
    --clinic-border: #2a2f36;
    --clinic-text: #eceff3;
    --clinic-muted: #aeb5bf;
    --shadow-soft: 0 10px 26px rgba(0, 0, 0, 0.35);
    background: radial-gradient(circle at top right, #161a20 0%, #0b0d10 42%, #08090b 100%);
    color: var(--clinic-text);
}

[data-theme="dark"] .top-header {
    background: linear-gradient(135deg, #0f1114, #15191f);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .sidebar,
[data-theme="dark"] .card {
    background-color: var(--clinic-surface);
    border-color: var(--clinic-border);
}

[data-theme="dark"] .sidebar .nav-link,
[data-theme="dark"] .table,
[data-theme="dark"] .card-header {
    color: var(--clinic-text);
}

[data-theme="dark"] .sidebar .nav-link:hover,
[data-theme="dark"] .sidebar .nav-link.active {
    background: rgba(31, 157, 139, 0.24);
    color: #f0f6ff;
}

[data-theme="dark"] .sidebar .nav-link i {
    color: #a9b1bd;
}

[data-theme="dark"] .sidebar .nav-link.active i {
    color: #d4dde9;
}

[data-theme="dark"] .main-content {
    background: transparent;
}

[data-theme="dark"] .card-header,
[data-theme="dark"] .table thead th {
    color: #f0f2f5;
    background: #171a1e;
    border-color: var(--clinic-border);
}

[data-theme="dark"] .table {
    color: var(--clinic-text);
    border-color: var(--clinic-border);
    --bs-table-bg: #13161a;
    --bs-table-striped-bg: #191d22;
    --bs-table-hover-bg: #23282f;
    --bs-table-hover-color: #f2f4f7;
}

[data-theme="dark"] .table > :not(caption) > * > * {
    border-color: var(--clinic-border);
}

[data-theme="dark"] .table > tbody > tr > td,
[data-theme="dark"] .table > tbody > tr > th {
    background-color: #13161a !important;
    color: #eceff3 !important;
}

[data-theme="dark"] .table.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: #191d22 !important;
    color: #eef1f5 !important;
}

[data-theme="dark"] .table > tbody > tr.table-primary > *,
[data-theme="dark"] .table > tbody > tr.table-secondary > *,
[data-theme="dark"] .table > tbody > tr.table-success > *,
[data-theme="dark"] .table > tbody > tr.table-danger > *,
[data-theme="dark"] .table > tbody > tr.table-warning > *,
[data-theme="dark"] .table > tbody > tr.table-info > *,
[data-theme="dark"] .table > tbody > tr.table-light > *,
[data-theme="dark"] .table > tbody > tr.table-dark > * {
    background-color: #1d2228 !important;
    color: #edf0f4 !important;
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background: #0e1013;
    border-color: #333940;
    color: #edf0f4;
}

[data-theme="dark"] .form-control::placeholder {
    color: #8f97a2;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background: #0b0d10;
    border-color: #5f6772;
    box-shadow: 0 0 0 0.2rem rgba(120, 128, 140, 0.25);
}

[data-theme="dark"] .form-label,
[data-theme="dark"] .text-muted {
    color: var(--clinic-muted) !important;
}

[data-theme="dark"] .input-group-text {
    background: #171a1e;
    border-color: var(--clinic-border);
    color: var(--clinic-text);
}

[data-theme="dark"] .btn-secondary {
    background: #2b3037;
    border-color: #3a4048;
    color: #eef2f7;
}

[data-theme="dark"] .btn-secondary:hover {
    background: #363c44;
    border-color: #4a525c;
}

[data-theme="dark"] .btn-outline-primary {
    color: #c5ceda;
    border-color: #606978;
}

[data-theme="dark"] .btn-outline-primary:hover {
    color: #fff;
    background: #3a414a;
    border-color: #707a89;
}

[data-theme="dark"] .btn-outline-secondary {
    color: #d0d6df;
    border-color: #5b626d;
}

[data-theme="dark"] .btn-outline-secondary:hover {
    color: #fff;
    background: #3a414a;
}

[data-theme="dark"] .nav-tabs {
    border-color: #3a4048;
}

[data-theme="dark"] .nav-tabs .nav-link {
    color: #bdc4ce;
    border-color: transparent;
}

[data-theme="dark"] .nav-tabs .nav-link:hover {
    border-color: #3a4048;
    color: #f0f2f5;
}

[data-theme="dark"] .nav-tabs .nav-link.active {
    color: #f0f2f5;
    background: #1b1f24;
    border-color: #3a4048 #3a4048 #1b1f24;
}

[data-theme="dark"] .dropdown-menu {
    background: #15181c;
    border-color: #343a42;
}

[data-theme="dark"] .dropdown-item {
    color: #e8ebf0;
}

[data-theme="dark"] .dropdown-item:hover {
    background: #252a31;
    color: #fff;
}

[data-theme="dark"] .dropdown-divider {
    border-color: #343a42;
}

[data-theme="dark"] .alert-success {
    background: #14392e;
    border-color: #24624f;
    color: #ccf5e8;
}

[data-theme="dark"] .alert-danger {
    background: #3e1b24;
    border-color: #754050;
    color: #ffdbe4;
}

[data-theme="dark"] .alert-warning {
    background: #473715;
    border-color: #84662c;
    color: #ffe8b1;
}

[data-theme="dark"] .alert-info {
    background: #173648;
    border-color: #2f6687;
    color: #d6efff;
}

[data-theme="dark"] .modal-content {
    background: #13161a;
    color: var(--clinic-text);
    border-color: var(--clinic-border);
}

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
    border-color: var(--clinic-border);
}

[data-theme="dark"] .list-group-item {
    background: #13161a;
    color: var(--clinic-text);
    border-color: var(--clinic-border);
}

[data-theme="dark"] .badge.bg-secondary {
    background-color: #3b424b !important;
}

[data-theme="dark"] .badge.bg-light {
    background-color: #323841 !important;
    color: #edf0f4 !important;
}

[data-theme="dark"] .site-global-footer {
    background: #101215;
    border-color: var(--clinic-border);
    color: #e8ecf2;
}

[data-theme="dark"] .site-global-footer p,
[data-theme="dark"] .site-global-footer span,
[data-theme="dark"] .site-global-footer small,
[data-theme="dark"] .site-global-footer a {
    color: #dbe9fb !important;
}

[data-theme="dark"] .site-global-footer a:hover,
[data-theme="dark"] .site-global-footer a:focus {
    color: #ffffff !important;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: inline-flex;
    }

    .sidebar {
        transform: translateX(-105%);
        transition: transform 0.25s ease;
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content,
    .site-global-footer {
        margin-left: 0;
    }
}