/* Modern HRMS Theme with Animations */

:root {
    --primary-color: #5b6ee8;
    --primary-dark: #4c5bd6;
    --primary-light: #7c8ef5;
    --secondary-color: #7c3aed;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    --dark-color: #334155;
    --light-color: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    --gradient-primary: linear-gradient(135deg, #5b6ee8 0%, #6d7ee8 100%);
    --gradient-secondary: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    --gradient-success: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    --gradient-warning: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f8fafc;
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Modern Navbar */
.navbar {
    background: var(--bg-primary) !important;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: all 0.3s ease;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
    color: var(--primary-dark) !important;
}

.navbar-brand i {
    font-size: 1.8rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    margin: 0 0.25rem;
}

.nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-xl);
    border-radius: 12px;
    padding: 0.5rem;
    margin-top: 0.5rem;
    background: white;
    animation: slideDown 0.3s ease;
}

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

.dropdown-item {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.dropdown-item:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateX(5px);
}

/* Modern Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 70px;
    height: calc(100vh - 70px);
    width: 280px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    padding: 2rem 0;
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: var(--shadow-md);
    z-index: 1020;
    transition: all 0.3s ease;
}

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

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

.sidebar::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid transparent;
    margin: 0.25rem 1rem;
    border-radius: 12px;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.menu-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: var(--bg-tertiary);
    transition: width 0.3s ease;
    z-index: -1;
}

.menu-item:hover {
    color: var(--primary-color);
    transform: translateX(8px);
    box-shadow: var(--shadow-sm);
}

.menu-item:hover::before {
    width: 100%;
}

.menu-item.active {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transform: translateX(8px);
    font-weight: 600;
}

.menu-item.active::before {
    width: 100%;
}

.menu-item i {
    margin-right: 1rem;
    width: 24px;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.menu-item:hover i,
.menu-item.active i {
    transform: scale(1.2);
}

/* Main Content */
.main-content {
    margin-left: 280px;
    padding: 2rem;
    margin-top: 70px;
    min-height: calc(100vh - 70px);
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Modern Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    background: var(--bg-primary);
    margin-bottom: 1.5rem;
}

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

.card-header {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.card-body {
    padding: 1.5rem;
}

/* Modern Buttons */
.btn {
    border-radius: 10px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
}

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

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

.btn-warning {
    background: #f59e0b;
    color: white;
    border: none;
}

.btn-warning:hover {
    background: #d97706;
    color: white;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Modern Tables */
.table {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: white;
}

.table thead {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.table thead th {
    border: none;
    padding: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: all 0.3s ease;
}

.table tbody tr:hover {
    background: var(--bg-tertiary);
    transform: scale(1.005);
}

.table tbody td {
    padding: 1rem;
    border-color: var(--border-color);
    vertical-align: middle;
}

/* Modern Forms */
.form-control,
.form-select {
    border-radius: 10px;
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Modern Alerts */
.alert {
    border: none;
    border-radius: 12px;
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-md);
    animation: slideInRight 0.5s ease;
    margin-bottom: 1.5rem;
}

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

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid #10b981;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid #ef4444;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 4px solid #f59e0b;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid #06b6d4;
}

/* Badges */
.badge {
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Dashboard Cards */
.dashboard-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.dashboard-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.dashboard-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
}

.dashboard-card-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.dashboard-card-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Page Transitions */
.page-enter {
    animation: fadeInUp 0.5s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 260px;
    }

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

    .main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .navbar-toggler {
        border: none;
        color: white;
    }
}

/* Utility Classes */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-hover {
    transition: box-shadow 0.3s ease;
}

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

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar for Body */
body::-webkit-scrollbar {
    width: 10px;
}

body::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

body::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

body::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Login Page Styles */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    padding: 2rem;
}

.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    padding: 3rem;
    width: 100%;
    max-width: 450px;
    animation: fadeInUp 0.6s ease;
}

/* Pagination */
.pagination {
    gap: 0.5rem;
}

.page-link {
    border-radius: 8px;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.page-link:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.page-item.active .page-link {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: white;
}

/* Modal */
.modal-content {
    border: none;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 16px 16px 0 0;
}

.modal-footer {
    border: none;
    padding: 1.5rem;
}

/* Animations for Lists */
.list-group-item {
    border: none;
    border-radius: 10px;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
    padding: 1rem;
}

.list-group-item:hover {
    background: rgba(99, 102, 241, 0.05);
    transform: translateX(5px);
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
}

.fab:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: var(--shadow-xl);
}