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

:root {
    --primary-color: #1B263B;
    --secondary-color: #415a77;
    --accent-color: #0d1421;
    --light-bg: #f5f7fa;
    --white: #ffffff;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --gradient-primary: linear-gradient(135deg, #1B263B 0%, #415a77 100%);
    --gradient-secondary: linear-gradient(135deg, #415a77 0%, #1B263B 100%);
    --gradient-accent: linear-gradient(135deg, #0d1421 0%, #1B263B 100%);
    --shadow-light: 0 2px 10px rgba(27, 38, 59, 0.1);
    --shadow-medium: 0 4px 20px rgba(27, 38, 59, 0.15);
    --shadow-heavy: 0 8px 30px rgba(27, 38, 59, 0.2);
    --shadow-glow: 0 0 20px rgba(27, 38, 59, 0.3);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: var(--text-dark);
    line-height: 1.4;
    font-weight: 400;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: all 0.3s ease;
}

/* Dark Theme */
body.dark-theme {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    color: #e2e8f0;
}

body.dark-theme .header {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
}

body.dark-theme .sidebar {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
}

body.dark-theme .sidebar-title {
    color: #a0aec0;
}

body.dark-theme .sidebar-menu a {
    color: #e2e8f0;
}

body.dark-theme .main-content {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
}

body.dark-theme .card {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    border-color: #4a5568;
    color: #e2e8f0;
}

body.dark-theme .card-title {
    color: #e2e8f0;
}

body.dark-theme .card-header {
    border-color: #4a5568;
}

body.dark-theme .page-header {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    border-color: #4a5568;
    color: #e2e8f0;
}

body.dark-theme .page-title {
    color: #63b3ed;
}

body.dark-theme .page-subtitle {
    color: #a0aec0;
}

body.dark-theme .form-control {
    background: #4a5568;
    border-color: #718096;
    color: #e2e8f0;
}

body.dark-theme .form-control:focus {
    background: #2d3748;
    border-color: #63b3ed;
}

body.dark-theme .form-label {
    color: #e2e8f0;
}

body.dark-theme .table {
    background: #2d3748;
    color: #e2e8f0;
}

body.dark-theme .table th {
    background: linear-gradient(135deg, #4a5568 0%, #718096 100%);
    color: #e2e8f0;
}

body.dark-theme .table tbody tr:hover {
    background: linear-gradient(90deg, rgba(99, 179, 237, 0.1), rgba(129, 140, 248, 0.1));
}

body.dark-theme .stat-card {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    border-color: #4a5568;
}

body.dark-theme .stat-value {
    color: #68d391;
}

body.dark-theme .stat-label {
    color: #a0aec0;
}

body.dark-theme .text-light {
    color: #a0aec0;
}

body.dark-theme .text-center {
    color: #e2e8f0;
}

body.dark-theme .text-center h3 {
    color: #e2e8f0;
}

body.dark-theme .text-center p {
    color: #a0aec0;
}

body.dark-theme .badge {
    color: #1a202c;
}

body.dark-theme .user-dropdown {
    background: #2d3748;
    border-color: #4a5568;
    color: #e2e8f0;
}

body.dark-theme .user-dropdown a {
    color: #e2e8f0;
}

body.dark-theme .notifications-dropdown {
    background: #2d3748;
    border-color: #4a5568;
    color: #e2e8f0;
}

body.dark-theme .notifications-dropdown h4 {
    color: #e2e8f0;
}

body.dark-theme .notifications-dropdown div {
    color: #a0aec0;
}

body.dark-theme .chat-container {
    background: #2d3748;
    border-color: #4a5568;
}

body.dark-theme .chat-sidebar {
    background: linear-gradient(180deg, #2d3748 0%, #4a5568 100%);
    border-color: #4a5568;
}

body.dark-theme .chat-main {
    background: #2d3748;
}

body.dark-theme .chat-messages {
    background: linear-gradient(180deg, #1a202c 0%, #2d3748 100%);
}

body.dark-theme .message-content {
    background: #4a5568;
    color: #e2e8f0;
}

body.dark-theme .message.sent .message-content {
    background: linear-gradient(135deg, #63b3ed 0%, #3182ce 100%);
    color: #1a202c;
}

body.dark-theme .chat-input {
    background: #2d3748;
    border-color: #4a5568;
}

body.dark-theme .note-card {
    border-color: #4a5568;
}

body.dark-theme .note-card h4 {
    color: #1a202c;
}

body.dark-theme .note-card p {
    color: #2d3748;
}

body.dark-theme .note-card small {
    color: #4a5568;
}

/* Additional Dark Theme Elements */
body.dark-theme h1,
body.dark-theme h2,
body.dark-theme h3,
body.dark-theme h4,
body.dark-theme h5,
body.dark-theme h6 {
    color: #e2e8f0;
}

body.dark-theme p {
    color: #a0aec0;
}

body.dark-theme .table td {
    color: #e2e8f0;
}

body.dark-theme .table td strong {
    color: #63b3ed;
}

body.dark-theme .table td small {
    color: #a0aec0;
}

body.dark-theme select option {
    background: #4a5568;
    color: #e2e8f0;
}

body.dark-theme textarea {
    background: #4a5568;
    border-color: #718096;
    color: #e2e8f0;
}

body.dark-theme input[type="text"],
body.dark-theme input[type="email"],
body.dark-theme input[type="password"],
body.dark-theme input[type="number"],
body.dark-theme input[type="date"],
body.dark-theme input[type="tel"],
body.dark-theme input[type="url"] {
    background: #4a5568;
    border-color: #718096;
    color: #e2e8f0;
}

body.dark-theme .auth-container {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
}

body.dark-theme .auth-card {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    color: #e2e8f0;
}

body.dark-theme .auth-header p {
    color: #a0aec0;
}

body.dark-theme .divider {
    color: #a0aec0;
}

body.dark-theme .divider span {
    background: #2d3748;
}

body.dark-theme .invoice-item {
    background: #4a5568;
    border-color: #718096;
}

body.dark-theme .payroll-employee-grid {
    background: rgba(74, 85, 104, 0.3);
    border-color: rgba(113, 128, 150, 0.3);
}

body.dark-theme .financial-year-selector label {
    color: #63b3ed;
}

body.dark-theme .financial-year-selector span {
    color: #a0aec0;
}

body.dark-theme .d-flex.justify-between.align-center {
    color: #e2e8f0;
}

body.dark-theme .text-success {
    color: #68d391 !important;
}

body.dark-theme .text-danger {
    color: #fc8181 !important;
}

body.dark-theme .text-warning {
    color: #f6e05e !important;
}

body.dark-theme .text-info {
    color: #63b3ed !important;
}

body.dark-theme .text-muted {
    color: #a0aec0 !important;
}

/* Header Styles */
.header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 1rem 2rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--white);
    transition: var(--transition-medium);
}

.logo:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--white) 0%, #f8f9fa 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.2rem;
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    transition: var(--transition-medium);
    opacity: 0;
}

.logo:hover .logo-icon::before {
    opacity: 1;
    animation: shine 0.6s ease-in-out;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--white) 0%, #f8f9fa 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    cursor: pointer;
    color: var(--primary-color);
    transition: var(--transition-medium);
    box-shadow: var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.user-avatar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition-medium);
}

.user-avatar:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-medium);
    border-color: rgba(255, 255, 255, 0.4);
}

.user-avatar:hover::before {
    opacity: 1;
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    left: 0;
    top: 70px;
    bottom: 0;
    width: 280px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 1rem 0;
    overflow-y: auto;
    z-index: 999;
    box-shadow: var(--shadow-medium);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

.sidebar-section {
    margin-bottom: 2rem;
}

.sidebar-title {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 600;
    padding: 0 1.5rem;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
    position: relative;
}

.sidebar-title::after {
    content: '';
    position: absolute;
    bottom: -0.25rem;
    left: 1.5rem;
    right: 1.5rem;
    height: 1px;
    background: linear-gradient(90deg, rgba(255,255,255,0.3), transparent);
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
    border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
    margin-right: 1rem;
    position: relative;
    overflow: hidden;
    font-weight: 500;
}

.sidebar-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
    transition: width var(--transition-medium);
    z-index: 0;
}

.sidebar-menu a:hover::before,
.sidebar-menu a.active::before {
    width: 100%;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: var(--white);
    transform: translateX(8px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sidebar-menu a > * {
    position: relative;
    z-index: 1;
}

.sidebar-menu a i {
    margin-right: 0.8rem;
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
    transition: var(--transition-fast);
}

.sidebar-menu a:hover i {
    transform: scale(1.1);
}

/* Main Content */
.main-content {
    margin-left: 280px;
    margin-top: 70px;
    padding: 2rem;
    min-height: calc(100vh - 70px);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    transition: all 0.3s ease;
}

.page-header {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #10b981, #f59e0b, #ef4444);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.theme-toggle-container {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.theme-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.3);
}

.theme-toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.page-title {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #3b82f6 0%, #10b981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: #6b7280;
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.8;
}

/* Cards */
.card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.modern-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    position: relative;
}

.modern-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #10b981, #f59e0b);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    position: relative;
    overflow: hidden;
}

.chart-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.chart-container {
    height: 250px;
    position: relative;
}

.chart-icon {
    color: #3b82f6;
    margin-right: 0.5rem;
}

.card-header {
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 0.85rem;
    font-weight: 800;
    color: #1f2937;
    position: relative;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.7rem;
    position: relative;
}

.form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 2px solid rgba(27, 38, 59, 0.1);
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    transition: var(--transition-medium);
    background: var(--white);
    font-weight: 400;
    position: relative;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(27, 38, 59, 0.1);
    transform: translateY(-2px);
    background: #fafbfc;
}

.form-control:hover {
    border-color: rgba(27, 38, 59, 0.2);
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-col {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    text-transform: none;
    letter-spacing: 0.025em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    display: none;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
    filter: brightness(1.05);
}

.btn-secondary {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(107, 114, 128, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
    filter: brightness(1.05);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-medium);
    filter: brightness(1.05);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-medium);
    filter: brightness(1.05);
}

.btn-info {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-sm {
    padding: 0.2rem 0.4rem;
    font-size: 0.65rem;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    background: var(--white);
}

.table th,
.table td {
    padding: 0.4rem 0.3rem;
    text-align: left;
    border-bottom: 1px solid rgba(27, 38, 59, 0.08);
    font-size: 0.75rem;
}

.table th {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    font-weight: 800;
    color: var(--primary-color);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    position: relative;
}

.table th::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
}

.table tbody tr:hover {
    background: linear-gradient(90deg, rgba(27, 38, 59, 0.02), rgba(65, 90, 119, 0.02));
    transform: scale(1.005);
    transition: var(--transition-fast);
    box-shadow: 0 2px 8px rgba(27, 38, 59, 0.05);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #10b981, #f59e0b, #ef4444);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.stat-value {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    line-height: 1;
    position: relative;
    z-index: 1;
}

.stat-label {
    color: #6b7280;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    position: relative;
    z-index: 1;
}

/* Login/Register Forms */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="1" fill="rgba(255,255,255,0.03)"/><circle cx="10" cy="50" r="1" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.auth-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-heavy);
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 1.75rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.auth-logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    color: var(--white);
    font-size: 1.5rem;
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.auth-logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    animation: logoShine 3s ease-in-out infinite;
}

@keyframes logoShine {
    0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); opacity: 0; }
    50% { transform: translateX(0%) translateY(0%) rotate(45deg); opacity: 1; }
}

.google-btn {
    background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
    color: var(--white);
    border: none;
    padding: 0.875rem;
    border-radius: var(--border-radius);
    width: 100%;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.google-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-slow);
}

.google-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-medium);
    color: var(--white);
    filter: brightness(1.05);
}

.google-btn:hover::before {
    left: 100%;
}

.divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(27, 38, 59, 0.2), transparent);
    z-index: 1;
}

.divider span {
    background: var(--white);
    padding: 0 1rem;
    position: relative;
    z-index: 2;
}

/* Chat Styles */
.chat-container {
    display: flex;
    height: 600px;
    border: 1px solid rgba(27, 38, 59, 0.1);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    background: var(--white);
}

.chat-sidebar {
    width: 300px;
    background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
    border-right: 1px solid rgba(27, 38, 59, 0.1);
    overflow-y: auto;
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--white);
}

.chat-header {
    padding: 1rem;
    background: var(--gradient-primary);
    color: var(--white);
    font-weight: 700;
    box-shadow: var(--shadow-light);
}

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background: linear-gradient(180deg, #fafbfc 0%, #f8f9fa 100%);
}

.message {
    margin-bottom: 1rem;
    max-width: 70%;
    animation: messageSlide 0.3s ease-out;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.sent {
    margin-left: auto;
}

.message.sent .message-content {
    background: var(--gradient-primary);
    color: var(--white);
}

.message-content {
    padding: 0.75rem;
    border-radius: var(--border-radius);
    background: var(--white);
    box-shadow: var(--shadow-light);
    position: relative;
    word-wrap: break-word;
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.25rem;
    opacity: 0.7;
}

.chat-input {
    padding: 1rem;
    border-top: 1px solid rgba(27, 38, 59, 0.1);
    background: var(--white);
    box-shadow: 0 -2px 10px rgba(27, 38, 59, 0.05);
}

.chat-input-form {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}

.chat-input-form input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid rgba(27, 38, 59, 0.1);
    border-radius: var(--border-radius);
    transition: var(--transition-medium);
}

.chat-input-form input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(27, 38, 59, 0.1);
}

/* Responsive Design */
/* Quick Action Buttons */
.quick-actions {
    display: flex;
    gap: 1rem;
    margin-left: 2rem;
}

.quick-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    color: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.quick-sale {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.quick-sale:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    color: white;
}

.quick-purchase {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.quick-purchase:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    color: white;
}

/* Search and Filter Styles */
.search-filter-bar {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.filter-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 1rem;
    align-items: end;
}

.search-input {
    position: relative;
}

.search-input input {
    padding-left: 2.5rem;
}

.search-input i {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #6b7280;
}

@media (max-width: 768px) {
    .quick-actions {
        display: none;
    }
    
    .filter-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .chart-container {
        height: 200px;
    }
    
    .theme-toggle-container {
        position: static;
        margin-top: 1rem;
    }
    
    .page-header {
        text-align: center;
    }
    
    .mobile-menu-btn {
        display: block !important;
    }
    
    body {
        font-size: 12px;
    }
    
    .sidebar {
        transform: translateX(-280px);
        transition: transform var(--transition-medium);
        width: 280px;
        z-index: 1002;
    }
    
    .sidebar.open {
        transform: translateX(0);
        box-shadow: 0 0 20px rgba(0,0,0,0.5);
    }
    
    .main-content {
        margin-left: 0;
        padding: 0.5rem;
        margin-top: 60px;
    }
    
    .header {
        padding: 0.75rem 1rem;
    }
    
    .header-content {
        padding: 0;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .user-avatar {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .page-header {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .page-title {
        font-size: 1rem;
    }
    
    .page-subtitle {
        font-size: 0.65rem;
    }
    
    .card {
        padding: 1rem;
        margin-bottom: 1rem;
        border-radius: 8px;
    }
    
    .card-header {
        padding-bottom: 0.75rem;
        margin-bottom: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .card-title {
        font-size: 0.8rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-value {
        font-size: 1.2rem;
    }
    
    .stat-label {
        font-size: 0.65rem;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-label {
        font-size: 0.65rem;
        margin-bottom: 0.25rem;
    }
    
    .form-control {
        padding: 0.5rem;
        font-size: 0.7rem;
    }
    
    .btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.65rem;
        margin-bottom: 0.25rem;
    }
    
    .btn-sm {
        padding: 0.25rem 0.4rem;
        font-size: 0.6rem;
    }
    
    .d-flex {
        flex-wrap: wrap;
        gap: 0.25rem;
    }
    
    .d-flex.gap-1 {
        gap: 0.25rem;
    }
    
    .auth-card {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .auth-header {
        margin-bottom: 1.5rem;
    }
    
    .auth-logo {
        font-size: 1.5rem;
    }
    
    .google-btn {
        padding: 0.75rem;
        font-size: 0.8rem;
    }
    
    .chat-container {
        height: 400px;
        flex-direction: column;
    }
    
    .chat-sidebar {
        width: 100%;
        height: 150px;
        border-right: none;
        border-bottom: 1px solid rgba(27, 38, 59, 0.1);
    }
    
    .chat-main {
        height: 250px;
    }
    
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table {
        min-width: 600px;
        font-size: 0.65rem;
    }
    
    .table th,
    .table td {
        padding: 0.25rem 0.15rem;
        white-space: nowrap;
    }
    
    .table th {
        font-size: 0.6rem;
    }
    
    .badge {
        padding: 0.2rem 0.4rem;
        font-size: 0.6rem;
    }
    
    .notification {
        right: 10px;
        top: 70px;
        max-width: calc(100vw - 20px);
        font-size: 0.7rem;
    }
    
    .user-dropdown,
    .notifications-dropdown {
        right: 10px;
        min-width: 180px;
        max-width: calc(100vw - 20px);
        font-size: 0.7rem;
    }
    
    .invoice-item {
        display: flex !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
        border: 1px solid #e5e7eb;
        padding: 0.75rem;
        border-radius: 8px;
        margin-bottom: 1rem;
    }
    
    .invoice-item > div {
        width: 100% !important;
    }
    
    .payroll-employee-grid {
        display: flex !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
        border: 1px solid rgba(255,255,255,0.2);
        padding: 0.75rem;
        border-radius: 8px;
        margin-bottom: 0.75rem;
    }
    
    .note-card {
        margin-bottom: 1rem;
    }
    
    .financial-year-selector {
        margin-bottom: 1rem;
    }
    
    .financial-year-selector .d-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .financial-year-selector select {
        width: 100%;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 11px;
    }
    
    .header {
        padding: 0.5rem 0.75rem;
    }
    
    .logo {
        font-size: 1rem;
    }
    
    .user-avatar {
        width: 30px;
        height: 30px;
        font-size: 0.8rem;
    }
    
    .main-content {
        padding: 0.25rem;
        margin-top: 55px;
    }
    
    .page-header {
        padding: 0.75rem;
    }
    
    .page-title {
        font-size: 0.9rem;
    }
    
    .page-subtitle {
        font-size: 0.6rem;
    }
    
    .card {
        padding: 0.75rem;
    }
    
    .card-title {
        font-size: 0.75rem;
    }
    
    .stat-value {
        font-size: 1rem;
    }
    
    .stat-label {
        font-size: 0.6rem;
    }
    
    .btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.6rem;
    }
    
    .btn-sm {
        padding: 0.2rem 0.3rem;
        font-size: 0.55rem;
    }
    
    .form-control {
        padding: 0.4rem;
        font-size: 0.65rem;
    }
    
    .table {
        font-size: 0.6rem;
    }
    
    .table th,
    .table td {
        padding: 0.2rem 0.1rem;
    }
    
    .auth-card {
        margin: 0.5rem;
        padding: 1rem;
    }
    
    .chat-container {
        height: 350px;
    }
    
    .chat-sidebar {
        height: 120px;
    }
    
    .chat-main {
        height: 230px;
    }
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.w-full { width: 100%; }
.hidden { display: none; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }
.text-light { color: var(--text-light); }

/* Status badges */
.badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 800;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    position: relative;
    overflow: hidden;
}

.badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition-medium);
}

.badge:hover::before {
    opacity: 1;
}

.badge-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    box-shadow: 0 2px 8px rgba(21, 87, 36, 0.3);
    border: 1px solid rgba(21, 87, 36, 0.2);
}

.badge-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
    box-shadow: 0 2px 8px rgba(133, 100, 4, 0.3);
    border: 1px solid rgba(133, 100, 4, 0.2);
}

.badge-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
    box-shadow: 0 2px 8px rgba(114, 28, 36, 0.3);
    border: 1px solid rgba(114, 28, 36, 0.2);
}

.badge-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
    box-shadow: 0 2px 8px rgba(12, 84, 96, 0.3);
    border: 1px solid rgba(12, 84, 96, 0.2);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Table Responsive */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--border-radius);
}

.table-responsive::-webkit-scrollbar {
    height: 6px;
}

.table-responsive::-webkit-scrollbar-track {
    background: rgba(27, 38, 59, 0.05);
    border-radius: 3px;
}

.table-responsive::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

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

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

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

@keyframes glow {
    0%, 100% { box-shadow: var(--shadow-light); }
    50% { box-shadow: var(--shadow-glow); }
}

.card {
    animation: none;
}

.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.2s; }
.card:nth-child(4) { animation-delay: 0.3s; }

.stat-card {
    animation: none;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

.sidebar-menu li {
    animation: none;
}

.sidebar-menu li:nth-child(1) { animation-delay: 0.1s; }
.sidebar-menu li:nth-child(2) { animation-delay: 0.15s; }
.sidebar-menu li:nth-child(3) { animation-delay: 0.2s; }
.sidebar-menu li:nth-child(4) { animation-delay: 0.25s; }
.sidebar-menu li:nth-child(5) { animation-delay: 0.3s; }
.sidebar-menu li:nth-child(6) { animation-delay: 0.35s; }
.sidebar-menu li:nth-child(7) { animation-delay: 0.4s; }
.sidebar-menu li:nth-child(8) { animation-delay: 0.45s; }

.page-header {
    animation: none;
}

.btn:active {
    transform: scale(0.98);
}

.form-control:invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Enhanced Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(27, 38, 59, 0.1);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 2rem auto;
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 90px;
    right: 20px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    padding: 1rem;
    max-width: 300px;
    z-index: 1001;
    animation: slideInRight 0.2s ease-out;
    border-left: 4px solid var(--primary-color);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification.success { border-left-color: var(--success); }
.notification.warning { border-left-color: var(--warning); }
.notification.error { border-left-color: var(--danger); }
.notification.info { border-left-color: var(--info); }

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

::-webkit-scrollbar-track {
    background: rgba(27, 38, 59, 0.05);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    transition: var(--transition-medium);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    box-shadow: 0 0 5px rgba(27, 38, 59, 0.3);
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:focus,
.form-control:focus {
    outline: none;
}

/* Print Styles */
@media print {
    .sidebar,
    .header,
    .btn,
    .chat-container {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
        margin-top: 0;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.4);
        --shadow-heavy: 0 8px 16px rgba(0, 0, 0, 0.5);
    }
    
    .card,
    .form-control,
    .btn {
        border: 2px solid var(--text-dark);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Colorful Elements */
.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: var(--white);
    box-shadow: var(--shadow-light);
}

.btn-secondary {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    color: var(--white);
    box-shadow: var(--shadow-light);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--white);
    box-shadow: var(--shadow-light);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--white);
    box-shadow: var(--shadow-light);
}

.btn-info {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    color: var(--white);
    box-shadow: var(--shadow-light);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--white);
    box-shadow: var(--shadow-light);
}

/* Note Cards */
.note-card {
    transition: transform 0.2s ease;
}

.note-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}