:root {
    --primary-color: #2563eb;
    --primary-strong: #1d4ed8;
    --text-color: #1f2937;
    --muted-color: #64748b;
    --surface-color: #ffffff;
    --surface-soft: #f1f5f9;
    --surface-alt: #f8fafc;
    --border-color: #dbe3ef;
    --sidebar-bg: #ffffff;
    --sidebar-link: #475569;
    --sidebar-link-active: #1e40af;
    --sidebar-link-active-bg: #e8efff;
    --sidebar-width: 250px;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --shell-header-height: 76px;
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--text-color);
    background: var(--surface-soft);
}

#app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styles */
#sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--text-color);
    position: fixed;
    height: 100vh;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}

.sidebar-header {
    height: var(--shell-header-height);
    padding: 0 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h4 {
    margin: 0;
    font-weight: 600;
}

/* Keep tenant logo clearly visible across all modules/pages. */
#clinic-logo {
    width: 160px !important;
    height: 52px !important;
    object-fit: contain;
}

#clinic-icon {
    font-size: 2.4rem !important;
}

.sidebar-page-title {
    margin: 0.75rem 0.75rem 0.25rem;
    padding: 0.45rem 0.6rem;
    border-radius: 0.35rem;
    background: #0f172a;
    color: #f8fafc;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    line-height: 1.2;
}

#sidebar .nav {
    padding: 1rem 0;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    width: 100%;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
}

#sidebar .nav-section {
    padding: 0.75rem 1.5rem 0.25rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #94a3b8;
    margin-top: 0.5rem;
}

#sidebar .nav-section:first-child {
    margin-top: 0;
}

#sidebar .nav-link {
    color: var(--sidebar-link);
    padding: 0.68rem 1rem;
    margin: 0.12rem 0.55rem;
    border-radius: 0.7rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s;
    font-weight: 500;
    width: calc(100% - 1.1rem);
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#sidebar .nav-link:hover,
#sidebar .nav-link.active {
    color: var(--sidebar-link-active);
    background: var(--sidebar-link-active-bg);
}

#sidebar .nav-link i {
    font-size: 1.1rem;
    flex: 0 0 1.1rem;
    width: 1.1rem;
    text-align: center;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Main Content */
#main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
}

#top-header {
    background: var(--surface-color);
    min-height: var(--shell-header-height);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

/* Module tabs in top header */
.module-tabs {
    display: flex;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.module-tabs .nav-item {
    display: inline-block;
}

.module-tab {
    color: #475569;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    transition: all 0.15s;
    border: 1px solid transparent;
}

.module-tab:hover {
    background: #e9effb;
    color: var(--text-color);
}

.module-tab.active {
    background: #e2eaff;
    color: #1e40af;
    box-shadow: inset 0 0 0 1px #bfd1ff;
}

.module-tab.active:hover {
    color: #1e40af;
}

.module-tab i {
    font-size: 1rem;
}

.content-wrapper {
    padding: 2rem;
}

/* Generic form language for all data-entry forms */
.content-wrapper form .form-label,
.modal-content form .form-label {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted-color);
    margin-bottom: 0.3rem;
}

.content-wrapper form .form-control,
.content-wrapper form .form-select,
.modal-content form .form-control,
.modal-content form .form-select {
    border: 1px solid var(--border-color);
    border-radius: 0.7rem;
    background: var(--surface-color);
    color: var(--text-color);
    min-height: 42px;
    box-shadow: none;
}

.content-wrapper form textarea.form-control,
.modal-content form textarea.form-control {
    min-height: 90px;
}

.content-wrapper form .form-control::placeholder,
.modal-content form .form-control::placeholder {
    color: #a2a8bb;
}

.content-wrapper form .form-control:focus,
.content-wrapper form .form-select:focus,
.modal-content form .form-control:focus,
.modal-content form .form-select:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.16);
}

.content-wrapper form .form-check-input,
.modal-content form .form-check-input {
    border-color: #cfd7ea;
}

.content-wrapper form .form-check-input:checked,
.modal-content form .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.modal-content {
    border: 1px solid var(--border-color);
    border-radius: 0.95rem;
    box-shadow: 0 16px 36px rgba(37, 46, 74, 0.08);
}

/* Responsive standards */
.page-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.page-toolbar-group {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    flex-wrap: wrap;
}

.responsive-table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.responsive-table > .table {
    min-width: 720px;
}

.touch-target {
    min-height: 44px;
}

.fluid-text-sm {
    font-size: clamp(0.8125rem, 1.5vw, 0.9375rem);
}

.fluid-text-md {
    font-size: clamp(0.9375rem, 2vw, 1.125rem);
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.login-box {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

#login-logo {
    width: 170px !important;
    height: 72px !important;
    object-fit: contain;
}

#login-icon {
    font-size: 2.4rem !important;
}

.login-box p {
    text-align: center;
    color: #64748b;
    margin-bottom: 2rem;
}

/* Dashboard Cards */
.stat-card {
    background: var(--surface-color);
    border-radius: 0.9rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 22px rgba(44, 57, 90, 0.05);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card .icon {
    width: 50px;
    height: 50px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
}

.stat-card .label {
    color: var(--muted-color);
    font-size: 0.875rem;
}

/* Data Tables */
.data-card {
    background: var(--surface-color);
    border-radius: 0.9rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 22px rgba(44, 57, 90, 0.05);
    overflow: hidden;
}

.data-card .card-header {
    background: var(--surface-alt);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.data-card .card-body {
    padding: 0;
}

.table {
    margin: 0;
}

.table th {
    background: #f1f5f9;
    font-weight: 600;
    color: #475569;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.73rem;
    letter-spacing: 0.04em;
}

.table td {
    vertical-align: middle;
    border-color: #e9eef5;
}

.table-hover tbody tr:hover {
    background: #f8fbff;
}

.user-role-icon {
    background: #e8efff;
    color: #1e40af;
    border: 1px solid #bfd1ff;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0;
}

/* Badges */
.badge-status {
    padding: 0.35em 0.65em;
    font-weight: 500;
}

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

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

/* Buttons */
.btn {
    border-radius: 0.75rem;
    font-weight: 600;
}

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

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

.btn-outline-primary {
    color: var(--primary-strong);
    border-color: #93c5fd;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    color: #fff;
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

/* Alerts */
.alert-toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
    min-width: 300px;
}

/* Responsive */
@media (max-width: 768px) {
    #sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        z-index: 1045;
    }

    #mobile-nav .dropdown-menu {
        max-height: 70vh;
        overflow-y: auto;
        min-width: 220px;
    }
    #mobile-nav .dropdown-item {
        padding: .55rem .85rem;
        font-size: .92rem;
        display: flex;
        align-items: center;
        gap: .15rem;
    }
    #mobile-nav .dropdown-item.active {
        background: #e8efff;
        color: #1e40af;
    }
    #mobile-nav .dropdown-item i {
        width: 1.1rem;
        text-align: center;
    }

    #sidebar.mobile-open {
        transform: translateX(0);
    }

    #sidebar-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.45);
        z-index: 1040;
    }

    #top-header {
        padding: 0.6rem 0.75rem;
        background: #fff;
        border-bottom: 1px solid var(--border-color);
    }

    #top-header > .d-flex {
        flex-wrap: nowrap;
        gap: 0.5rem;
        align-items: center !important;
    }

    #top-header > .d-flex > .d-flex {
        gap: 0.4rem !important;
        flex: 1 1 auto;
        min-width: 0;
    }

    #top-header #mobile-menu-toggle,
    #top-header #mobile-modules-toggle {
        height: 38px;
        border-radius: 999px;
        padding: 0 .75rem;
        display: inline-flex;
        align-items: center;
        gap: .35rem;
        border-color: #d6dde8;
        color: #1e40af;
        background: #fff;
        font-weight: 500;
        font-size: .85rem;
    }
    #top-header #mobile-menu-toggle {
        width: 38px;
        padding: 0;
        justify-content: center;
    }
    #top-header #mobile-menu-toggle:hover,
    #top-header #mobile-modules-toggle:hover {
        background: #eef2ff;
        border-color: #c7d2fe;
    }
    #top-header #mobile-modules-toggle .bi-grid { color: #1e40af; }
    #top-header #mobile-modules-toggle #mobile-nav-label {
        max-width: 110px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    #top-header .user-info {
        width: auto;
        flex: 0 0 auto;
        margin-left: auto;
    }

    #top-header .user-info > a {
        justify-content: center;
        width: auto;
        height: 38px;
        padding: 0 .55rem;
        border-radius: 999px;
        border: 1px solid #d6dde8;
        background: #fff;
        gap: .35rem;
        color: #1e40af;
    }
    #top-header .user-info > a:hover { background: #eef2ff; }
    #top-header .user-info .user-role-icon {
        width: 26px;
        height: 26px;
    }

    .module-tabs {
        display: none !important;
    }

    .content-wrapper {
        padding: 1rem;
    }

    .page-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .page-toolbar-group {
        width: 100%;
    }

    .page-toolbar-group .form-control[style*='width'],
    .page-toolbar-group .form-select[style*='width'],
    .page-toolbar-group .btn {
        width: 100% !important;
    }

    .data-card .card-header {
        padding: 0.75rem 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .data-card .card-body {
        overflow-x: auto;
    }

    .data-card .table {
        min-width: 720px;
    }

    .alert-toast {
        right: 0.5rem;
        left: 0.5rem;
        min-width: auto;
    }

    .modal-dialog {
        margin: 0.5rem;
    }

    .modal-dialog.modal-lg,
    .modal-dialog.modal-xl {
        max-width: calc(100% - 1rem);
    }

    .content-wrapper .d-flex.justify-content-between.align-items-center.mb-4,
    .content-wrapper .d-flex.justify-content-between.align-items-center.mb-3 {
        flex-direction: column;
        align-items: stretch !important;
        gap: 0.75rem;
    }

    .content-wrapper .d-flex.justify-content-between.align-items-center.mb-4 > .d-flex,
    .content-wrapper .d-flex.justify-content-between.align-items-center.mb-3 > .d-flex,
    .content-wrapper .d-flex.gap-2.align-items-center {
        flex-wrap: wrap;
        width: 100%;
    }

    .content-wrapper .d-flex.gap-2 > .form-control[style*='width'],
    .content-wrapper .d-flex.gap-2 > .form-select[style*='width'],
    .content-wrapper .d-flex.gap-2.align-items-center > .form-control[style*='width'],
    .content-wrapper .d-flex.gap-2.align-items-center > .form-select[style*='width'] {
        width: 100% !important;
    }

    .content-wrapper .d-flex.justify-content-between.align-items-center.mb-4 > .btn,
    .content-wrapper .d-flex.justify-content-between.align-items-center.mb-3 > .btn {
        width: 100%;
    }

    #main-content {
        margin-left: 0;
    }
}

/* ============================================================
   Workspace Modal – shared styles used by all multi-tab modals
   Add class="workspace-modal" to any modal to opt in.
   ============================================================ */
.workspace-modal .modal-dialog { max-width: 940px; }
.workspace-modal .modal-content { border: 0; border-radius: 1.1rem; overflow: hidden; box-shadow: 0 1.5rem 3rem rgba(15,23,42,.16); }
.workspace-modal .modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1rem 1.5rem; border: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 100%);
}
.workspace-modal .modal-header .modal-heading { margin: 0; color: #fff; font-size: 1.2rem; font-weight: 700; }
.workspace-modal .modal-header .btn-close { filter: invert(1) grayscale(1) brightness(200%); flex-shrink: 0; }
.workspace-modal .modal-body { padding: 1.25rem 1.5rem 1.5rem; background: linear-gradient(180deg, #f8fafc 0%, #ffffff 16%); }
.workspace-modal .modal-footer { padding: 1rem 1.5rem 1.35rem; border-top: 1px solid #e2e8f0; background: #f8fafc; }
.workspace-modal .form-label { font-size: .82rem; font-weight: 600; color: #334155; margin-bottom: .35rem; }
.workspace-modal .form-control, .workspace-modal .form-select { border-radius: .8rem; border-color: #cbd5e1; padding: .72rem .9rem; }
.workspace-modal textarea.form-control { min-height: 100px; }

/* Workspace tab nav */
.ws-modal-tabs { gap: .65rem; margin-bottom: 1rem; border-bottom: 0; }
.ws-modal-tabs .nav-link { border: 0; border-radius: 999px; padding: .7rem 1rem; background: #e2e8f0; color: #475569; font-weight: 600; display: inline-flex; align-items: center; gap: .45rem; }
.ws-modal-tabs .nav-link.active { background: #0f172a; color: #fff; box-shadow: 0 .75rem 1.5rem rgba(15,23,42,.14); }

/* Workspace tab panel chrome */
.ws-tab-panel { border: 1px solid #e2e8f0; border-radius: 1rem; background: #fff; padding: 1.15rem; box-shadow: 0 1rem 2rem rgba(15,23,42,.05); }
.ws-section-card { padding: 1rem; border: 1px solid #e2e8f0; border-radius: .95rem; background: linear-gradient(180deg, #fff 0%, #f8fafc 100%); }
.ws-section-title { display: flex; align-items: center; gap: .55rem; margin-bottom: .9rem; color: #0f172a; font-size: .95rem; font-weight: 700; }
.ws-section-title i { color: #2563eb; }

@media (max-width: 767.98px) {
    .workspace-modal .modal-dialog { margin: 0; max-width: 100%; }
    .workspace-modal .modal-content { min-height: 100vh; border-radius: 0; }
    .workspace-modal .modal-header, .workspace-modal .modal-body, .workspace-modal .modal-footer { padding-left: 1rem; padding-right: 1rem; }
}