:root {
    --primary: #2563EB;
    --primary-light: #3B82F6;
    --primary-dark: #1E40AF;
    --secondary: #06B6D4;
    --bg: #F8FAFC;
    --card-bg: #FFFFFF;
    --success: #22C55E;
    --warning: #F59E0B;
    --danger: #EF4444;
    --text-main: #0F172A;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --sidebar-bg: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    --sidebar-width: 260px;
    --topbar-height: 70px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --font-main: 'Inter', 'Poppins', sans-serif;
}

[data-theme="dark"] {
    --bg: #0B0F1A;
    --card-bg: #161B29;
    --text-main: #F1F5F9;
    --text-muted: #94A3B8;
    --border: #1E293B;
    --shadow: 0 4px 20px rgba(0,0,0,0.4);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg);
    color: var(--text-main);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Sidebar Styling */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
    display: flex;
    flex-direction: column;
}

.sidebar-brand {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-brand img {
    height: 32px;
}

.brand-name {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.nav-label {
    padding: 12px 16px 8px;
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 600;
    color: #64748B;
    letter-spacing: 0.05em;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: #94A3B8;
    text-decoration: none !important;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-item i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.nav-item.active {
    background: var(--primary);
    color: white !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.nav-item.active i {
    color: white;
}

/* Topbar Styling */
.topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    z-index: 999;
    transition: all 0.3s ease;
}

.topbar-search {
    flex: 1;
    display: flex;
    justify-content: center;
}

.search-box {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s ease;
}

.topbar-btn:hover {
    background: var(--border);
}

.profile-dropdown {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 12px 4px 4px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    cursor: pointer;
}

.profile-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.profile-info {
    display: flex;
    flex-direction: column;
}

.profile-name {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1;
}

.profile-role {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Main Content area */
.main-content {
    margin-left: var(--sidebar-width);
    padding-top: var(--topbar-height);
    min-height: 100vh;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-wrapper {
    padding: 32px;
}

/* Card Styling */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    background: transparent !important;
    font-weight: 600;
    font-size: 1rem;
}

/* Stat Cards */
.kpi-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.kpi-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.kpi-value {
    font-size: 1.875rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text-main);
}

.kpi-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}

.kpi-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.trend-up { color: var(--success); }
.trend-down { color: var(--danger); }

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white !important;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Tables */
.table-responsive {
    border-radius: var(--radius);
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table th {
    background: var(--bg);
    padding: 16px;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

.table td {
    padding: 16px;
    font-size: 0.9rem;
    color: var(--text-main);
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

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

.table tr:hover {
    background-color: rgba(0, 0, 0, 0.01);
}

/* Badges */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

.badge-success { background: rgba(34, 197, 94, 0.1); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.1); color: var(--danger); }
.badge-blue { background: rgba(37, 99, 235, 0.1); color: var(--primary); }

/* Responsive adjustments */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .topbar {
        left: 0;
    }
    .main-content {
        margin-left: 0;
    }
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-up {
    animation: fadeInUp 0.5s ease forwards;
}

/* Micro-interactions */
.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
/* Background Decorations */
.bg-blob {
    position: fixed !important;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, rgba(37, 99, 235, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
    filter: blur(40px);
    animation: blobFloat 20s infinite alternate;
    margin: 0 !important;
    padding: 0 !important;
}

@keyframes blobFloat {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(10%, 10%) scale(1.1); }
}

/* Select Styling (Both Select2 and Native Fallback) */
select.form-select,
.select2-container--default .select2-selection--single {
    background-color: var(--bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: 10px !important;
    height: 42px !important;
    padding: 6px 12px !important;
    font-size: 0.9rem !important;
    color: var(--text-main) !important;
    transition: all 0.3s ease !important;
    box-shadow: none !important;
    display: flex !important;
    align-items: center !important;
}

select.form-select:focus,
.select2-container--default.select2-container--open .select2-selection--single {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1) !important;
    outline: none !important;
}

/* Select2 Specifics */
.select2-container--default .select2-selection--single .select2-selection__rendered {
    line-height: 28px !important;
    padding-left: 0 !important;
    color: var(--text-main) !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 40px !important;
    top: 1px !important;
}

.select2-dropdown {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: 12px !important;
    box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.2) !important;
    z-index: 1000002 !important;
    margin-top: 5px !important;
    overflow: hidden !important;
}

/* Fix for detached dropdowns */
.select2-container {
    z-index: 1000001 !important;
}

.select2-results__options {
    max-height: 300px !important;
    overflow-y: auto !important;
}

.select2-results__option {
    padding: 10px 16px !important;
    font-size: 0.9rem !important;
    color: var(--text-main) !important;
}

.select2-results__option--highlighted[aria-selected] {
    background-color: var(--primary) !important;
    color: white !important;
}

/* Select2 Search Field */
.select2-search--dropdown {
    padding: 12px 16px 8px !important;
}

.select2-search--dropdown .select2-search__field {
    background-color: var(--bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: 8px !important;
    padding: 8px 12px !important;
    color: var(--text-main) !important;
    font-size: 0.85rem !important;
}

.select2-search--dropdown .select2-search__field:focus {
    border-color: var(--primary) !important;
    outline: none !important;
}

/* Custom Checkboxes and Radios */
.form-check-input {
    width: 1.2rem;
    height: 1.2rem;
    margin-top: 0.15em;
    vertical-align: top;
    background-color: var(--card-bg);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    border: 2px solid #CBD5E1 !important; /* Higher contrast border */
    appearance: none;
    print-color-adjust: exact;
    transition: all 0.2s ease;
    cursor: pointer;
}

[data-theme="dark"] .form-check-input {
    border-color: #334155 !important;
}

.form-check-input[type="checkbox"] {
    border-radius: 6px;
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input:checked {
    background-color: var(--primary) !important;
    border-color: var(--primary) !important;
}

.form-check-input[type="checkbox"]:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='m6 10 3 3 6-6'/%3e%3c/svg%3e") !important;
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e") !important;
}

.form-check-input:focus {
    border-color: var(--primary) !important;
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(37, 99, 235, 0.1);
}

/* Fix for Select2 inside Modals */
.modal .select2-container {
    width: 100% !important;
}

/* Global Layout Fixes */
.content-wrapper, .content-area {
    padding: 32px;
    position: relative;
    z-index: 1;
}

/* Ensure no stray space at the top */
body, html {
    margin: 0 !important;
    padding: 0 !important;
    height: 100vh !important;
    background-color: var(--bg);
}

.main-content {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.content-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
}

/* Ensure parents are relative for Select2 dropdownParent */
.select2-parent {
    position: relative !important;
}

/* Inbox/Notice Specific Improvements */
.notice-card {
    transition: all 0.3s ease;
}
.notice-card:hover {
    transform: translateX(5px);
}

/* Prevent card hover lift from shifting Select2 dropdowns */
.card:has(.select2-container) {
    transform: none !important;
}
.card:has(.select2-container):hover {
    transform: none !important;
    box-shadow: var(--shadow-sm);
}

/* Select2 small variant for timetable/salary forms */
.select2-container .select2-selection--single.select2-selection--sm {
    height: 32px !important;
    padding: 2px 8px !important;
    font-size: 0.8rem !important;
}

/* Fix Select2 opening above/below properly */
.select2-container--open .select2-dropdown--below {
    border-top: none !important;
    border-top-left-radius: 0 !important;
    border-top-right-radius: 0 !important;
}

.select2-container--open .select2-dropdown--above {
    border-bottom: none !important;
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
}

/* Fix for form-select inside input-group */
.input-group .select2-container {
    flex: 1 1 auto;
    width: auto !important;
}

/* Ensure content-wrapper scroll doesn't clip dropdowns */
.content-wrapper {
    overflow-y: auto;
    overflow-x: visible;
}