/* HRMS SaaS - Main Stylesheet with Animations */

/* ==================== ROOT VARIABLES ==================== */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --sidebar-width: 260px;
    --header-height: 70px;
    --transition-speed: 0.3s;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ==================== GLOBAL STYLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--light-color);
    overflow-x: hidden;
}

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

img {
    max-width: 100%;
    height: auto;
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-in-out;
}

.slide-in-right {
    animation: slideInRight 0.5s ease-in-out;
}

/* ==================== LAYOUT ==================== */
.wrapper {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-speed);
}

.main-content.sidebar-collapsed {
    margin-left: 70px;
}

/* ==================== SIDEBAR ==================== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    color: #fff;
    overflow-y: auto;
    transition: all var(--transition-speed);
    z-index: 1000;
    box-shadow: var(--box-shadow-lg);
}

.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.collapsed {
    width: 70px;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.sidebar-logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.sidebar-logo h2 {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all var(--transition-speed);
}

.sidebar.collapsed .sidebar-logo h2 {
    display: none;
}

.sidebar-toggle {
    position: absolute;
    right: -15px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
    box-shadow: var(--box-shadow);
}

.sidebar-toggle:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.1);
}

.sidebar-menu {
    padding: 20px 0;
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-speed);
    position: relative;
}

.sidebar-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    padding-left: 25px;
}

.sidebar-menu a.active {
    background: linear-gradient(90deg, var(--primary-color) 0%, transparent 100%);
    color: #fff;
    border-left: 4px solid var(--primary-color);
}

.sidebar-menu a i {
    font-size: 20px;
    width: 30px;
    text-align: center;
    margin-right: 15px;
}

.sidebar.collapsed .sidebar-menu a span {
    display: none;
}

.sidebar.collapsed .sidebar-menu a {
    justify-content: center;
    padding: 12px 0;
}

.sidebar.collapsed .sidebar-menu a i {
    margin-right: 0;
}

/* Submenu */
.sidebar-submenu {
    list-style: none;
    padding-left: 50px;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-speed);
}

.sidebar-submenu.active {
    max-height: 500px;
}

.sidebar-submenu a {
    padding: 8px 20px;
    font-size: 13px;
}

/* ==================== HEADER ==================== */
.header {
    height: var(--header-height);
    background: #fff;
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.page-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-search {
    position: relative;
}

.header-search input {
    width: 300px;
    padding: 10px 40px 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    outline: none;
    transition: all var(--transition-speed);
}

.header-search input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.header-search button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.header-search button:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.1);
}

.header-icon {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.header-icon:hover {
    background: var(--primary-color);
    color: #fff;
    transform: scale(1.1);
}

.header-icon .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger-color);
    color: #fff;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    animation: pulse 2s infinite;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 8px 15px;
    border-radius: 25px;
    transition: all var(--transition-speed);
}

.user-profile:hover {
    background: var(--light-color);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.user-info h4 {
    font-size: 14px;
    font-weight: 600;
}

.user-info p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ==================== CONTENT AREA ==================== */
.content {
    padding: 30px;
    min-height: calc(100vh - var(--header-height));
}

/* ==================== CARDS ==================== */
.card {
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--box-shadow);
    padding: 25px;
    margin-bottom: 25px;
    transition: all var(--transition-speed);
    animation: fadeIn 0.5s ease-in-out;
}

.card:hover {
    box-shadow: var(--box-shadow-lg);
    transform: translateY(-5px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-body {
    padding: 10px 0;
}

/* ==================== STATS CARDS ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--box-shadow);
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.5s ease-in-out;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    transition: all var(--transition-speed);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-lg);
}

.stat-card:hover::before {
    top: -30%;
    right: -30%;
}

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

.stat-card.danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.stat-card.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.stat-card.info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.stat-icon {
    font-size: 40px;
    opacity: 0.3;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.stat-content {
    position: relative;
    z-index: 1;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

.stat-change {
    display: inline-block;
    margin-top: 10px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    font-size: 12px;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-align: center;
}

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

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

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

.btn-success {
    background: var(--secondary-color);
    color: #fff;
}

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-warning:hover {
    background: #d97706;
}

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

.btn-info:hover {
    background: #2563eb;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-sm {
    padding: 6px 15px;
    font-size: 12px;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 16px;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ==================== FORMS ==================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all var(--transition-speed);
    outline: none;
}

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

.form-control:disabled {
    background: var(--light-color);
    cursor: not-allowed;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

select.form-control {
    cursor: pointer;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* ==================== TABLES ==================== */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 20px;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
}

.table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr {
    transition: all var(--transition-speed);
}

.table tbody tr:hover {
    background: var(--light-color);
    transform: scale(1.01);
}

.table-striped tbody tr:nth-child(even) {
    background: #f9fafb;
}

/* ==================== BADGES ==================== */
.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

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

.badge-success {
    background: var(--secondary-color);
    color: #fff;
}

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

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

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

/* ==================== ALERTS ==================== */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    animation: slideInRight 0.5s ease-in-out;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--secondary-color);
}

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

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

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info-color);
}

/* ==================== MODALS ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    animation: fadeIn 0.3s ease-in-out;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideInRight 0.3s ease-in-out;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-speed);
}

.modal-close:hover {
    color: var(--danger-color);
    transform: rotate(90deg);
}

/* ==================== PAGINATION ==================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all var(--transition-speed);
}

.pagination a:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

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

/* ==================== LOADER ==================== */
.loader {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header-search input {
        width: 200px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .content {
        padding: 15px;
    }
}

/* ==================== UTILITY CLASSES ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }