/* ============================================
   PayrollPro - Global Styles
   Professional Payroll Management System
   ============================================ */

/* ---------- CSS Variables / Design Tokens ---------- */
:root {
    /* Primary Colors */
    --primary: #8B1E3F;
    --primary-dark: #6B1530;
    --primary-light: #A82854;
    --primary-ultra-light: #f8e8ee;

    /* Neutral Colors */
    --white: #ffffff;
    --bg-light: #f5f6fa;
    --bg-section: #f0f1f5;
    --border-color: #e2e4e9;
    --text-primary: #1a1d26;
    --text-secondary: #5f6577;
    --text-muted: #9198a8;

    /* Card Themes */
    --card-bg: var(--white);
    --card-text: var(--text-primary);
    --card-text-muted: var(--text-muted);
    --card-border: var(--border-color);

    /* Status Colors (Modern Professional) */
    --success: #10B981; /* Approved / Active */
    --success-bg: #D1FAE5;
    --warning: #F59E0B; /* Pending / Processing */
    --warning-bg: #FEF3C7;
    --danger: #EF4444; /* Denied / Error */
    --danger-bg: #FEE2E2;
    --info: #6B7280; /* Neutralized to reduce color clutter */
    --info-bg: #F3F4F6;

    /* Spacing */
    --sidebar-width: 260px;
    --sidebar-collapsed: 0px;
    --header-height: 64px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;

    /* Typography */
    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ---------- Dark Mode Variables ---------- */
[data-theme="dark"] {
    --primary: #c0395f;
    --primary-dark: #a82854;
    --primary-light: #d4527a;
    --primary-ultra-light: #3a1a24;

    --white: #1e2030;
    --bg-light: #161825;
    --bg-section: #1a1c2e;
    --border-color: #2e3150;
    --text-primary: #e8eaf6;
    --text-secondary: #a9adc8;
    --text-muted: #6b7099;

    --card-bg: #252840;
    --card-text: #e8eaf6;
    --card-text-muted: #a9adc8;
    --card-border: #2e3150;

    --success-bg: #0d2e1f;
    --warning-bg: #2e2008;
    --danger-bg: #2e0f0f;
    --info-bg: #1a1c2e;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Dark mode table row hover */
[data-theme="dark"] .data-table tbody tr:hover {
    background: #2e3150;
}

/* Dark mode inputs */
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: #252840;
    color: #e8eaf6;
    border-color: #2e3150;
}

/* Dark mode overrides for elements with hardcoded light backgrounds */
[data-theme="dark"] .notification-item.unread {
    background: rgba(192, 57, 95, 0.08);
}

[data-theme="dark"] .form-control {
    background: #252840;
    color: #e8eaf6;
    border-color: #2e3150;
}

[data-theme="dark"] .modal {
    background: var(--card-bg);
}

/* Dark mode theme toggle button */
.theme-toggle-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
    background: var(--primary-ultra-light);
    color: var(--primary);
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
    transition: all var(--transition-fast);
}

input, select, textarea {
    font-family: inherit;
    outline: none;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 0.9rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--white);
    color: var(--text-primary);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 30, 63, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
}

/* ---------- Layout ---------- */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding-top: var(--header-height);
    transition: margin-left var(--transition-normal);
    min-height: 100vh;
    min-width: 0;
    width: calc(100% - var(--sidebar-width));
}

.main-content.sidebar-collapsed {
    margin-left: var(--sidebar-collapsed);
    width: calc(100% - var(--sidebar-collapsed));
}

.page-content {
    padding: 28px 32px;
    max-width: 1440px;
    margin: 0 auto;
}

/* ---------- Header / Navbar ---------- */
.top-navbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--header-height);
    background: var(--primary);
    border-bottom: 1px solid var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 100;
    transition: left var(--transition-normal);
}

.top-navbar.sidebar-collapsed {
    left: var(--sidebar-collapsed);
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.sidebar-toggle {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
}

.sidebar-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.page-title-bar h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.02em;
}

.page-title-bar p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 1px;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-icon-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--white);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-icon-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    color: var(--white);
}

.nav-icon-btn .badge {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid var(--white);
    padding: 0 !important;
}

.profile-dropdown {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
    border-radius: var(--radius-md);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.1);
    transition: background var(--transition-fast);
    position: relative;
}

.profile-dropdown:hover {
    background: rgba(255, 255, 255, 0.2);
}

.profile-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.profile-info {
    line-height: 1.3;
}

.profile-info .name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
}

.profile-info .role {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ---------- Sidebar ---------- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--white);
    border-right: 1px solid var(--border-color);
    z-index: 200;
    display: flex;
    flex-direction: column;
    transition: width var(--transition-normal);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-brand {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 12px;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.brand-text {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    white-space: nowrap;
    opacity: 1;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .brand-text {
    display: none;
}

.sidebar.collapsed .sidebar-brand {
    padding: 0;
    justify-content: center;
}

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

.nav-section-title {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 8px 12px 8px;
    white-space: nowrap;
    opacity: 1;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-section-title {
    display: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 2px;
    white-space: nowrap;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-item:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-ultra-light);
    color: var(--primary);
    font-weight: 600;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1.05rem;
    flex-shrink: 0;
}

.nav-item span {
    opacity: 1;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-item span {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 10px;
}

.sidebar.collapsed .nav-item.active::before {
    display: none;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-footer .nav-item {
    color: var(--danger);
}

.sidebar-footer .nav-item:hover {
    background: var(--danger-bg);
}

/* ---------- Cards ---------- */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    padding: 24px;
    transition: box-shadow var(--transition-normal);
    color: var(--card-text);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--card-text);
}

/* ---------- Stat Cards ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

/* ---------- Dashboard & Card Components ---------- */
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition-normal);
    color: var(--card-text);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-icon.primary {
    background: var(--primary-ultra-light);
    color: var(--primary);
}

.stat-icon.success {
    background: var(--success-bg);
    color: var(--success);
}

.stat-icon.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.stat-icon.info {
    background: var(--info-bg);
    color: var(--info);
}

.stat-icon.danger {
    background: var(--danger-bg);
    color: var(--danger);
}

.stat-details h4 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--card-text);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.stat-details p {
    font-size: 0.82rem;
    color: var(--card-text-muted);
    margin-top: 4px; /* Increased from 2px */
}

.stat-details .trend {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-top: 6px;
    padding: 2px 8px;
    border-radius: 20px;
}

.trend.up {
    background: var(--success-bg);
    color: var(--success);
}

.trend.down {
    background: var(--danger-bg);
    color: var(--danger);
}

/* ---------- Tables ---------- */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.data-table thead {
    background: var(--bg-light);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--bg-light);
}

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

/* ---------- Badges / Status ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge.success {
    background: var(--success-bg);
    color: var(--success);
}

.badge.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge.danger {
    background: var(--danger-bg);
    color: var(--danger);
}

.badge.info {
    background: var(--info-bg);
    color: var(--info);
}

.badge.primary {
    background: var(--primary-ultra-light);
    color: var(--primary);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(139, 30, 63, 0.3);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary-ultra-light);
}

.btn-success {
    background: var(--success);
    color: var(--white);
}

.btn-success:hover {
    background: #16a05e;
    box-shadow: 0 4px 12px rgba(27, 183, 110, 0.3);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-danger:hover {
    background: #d04435;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 14px;
}

.btn-ghost:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

/* ---------- Forms ---------- */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 30, 63, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

/* ---------- Modals ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 560px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 32px;
    transform: translateY(20px) scale(0.97);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.modal-close:hover {
    background: var(--danger-bg);
    color: var(--danger);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* ---------- Filters Bar ---------- */
.filters-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.search-input {
    position: relative;
    flex: 1;
    min-width: 220px;
}

.search-input i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.search-input input {
    width: 100%;
    padding-left: 40px;
}

/* ---------- Toolbar ---------- */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

/* ---------- Grid Layouts ---------- */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.animate-in {
    animation: fadeInUp 0.4s ease forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }
.animate-in:nth-child(6) { animation-delay: 0.3s; }

/* ---------- Scrollbar Styles ---------- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state h3 {
    font-size: 1.1rem;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 0.88rem;
}

/* ---------- Toast Notifications ---------- */
.toast-container {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    background: var(--white);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast.info { border-left: 4px solid var(--info); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

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

    .top-navbar {
        left: 0;
    }

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

    .page-content {
        padding: 20px 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }

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

    .profile-info {
        display: none;
    }

    /* Mobile overlay */
    .sidebar-overlay {
        display: block;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .page-title-bar p {
        display: none;
    }

    .modal {
        width: 95%;
        padding: 24px 20px;
    }
}

/* ---------- Mobile Overlay ---------- */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 150;
}

@media (max-width: 768px) {
    .sidebar-overlay.active {
        display: block;
    }
}

/* ---------- Utility Classes ---------- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--text-muted) !important; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-header { 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    gap: 16px; 
    flex-wrap: wrap; 
    margin-bottom: 24px;
}
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }
.w-100 { width: 100%; }

/* Spacing Helpers */
.ms-1 { margin-left: 8px; }
.ms-2 { margin-left: 16px; }
.me-1 { margin-right: 8px; }
.me-2 { margin-right: 16px; }