/* ==========================================
   OFFICE MANAGEMENT SYSTEM - Custom CSS
   Clean, Modern, Premium Design
   ========================================== */

/* CSS Variables */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #64748b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #06b6d4;
    --dark: #1e293b;
    --light: #f8fafc;
    --white: #ffffff;
    --sidebar-width: 280px;
    --header-height: 70px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
    min-height: 100vh;
    color: var(--dark);
    line-height: 1.6;
}

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

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: 24px;
    padding: 48px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.login-logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
}

.login-logo p {
    color: var(--secondary);
    margin-top: 8px;
}

/* Form Styles */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-size: 15px;
    transition: var(--transition);
    background: var(--light);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-control::placeholder {
    color: #94a3b8;
}

.form-select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-size: 15px;
    transition: var(--transition);
    background: var(--light);
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.4);
}

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

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(16, 185, 129, 0.4);
}

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

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(239, 68, 68, 0.4);
}

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

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white);
}

.sidebar-logo i {
    font-size: 32px;
    color: var(--primary-light);
}

.sidebar-logo span {
    font-size: 20px;
    font-weight: 700;
}

.sidebar-menu {
    padding: 16px 0;
}

.menu-section {
    padding: 8px 24px;
    margin-top: 16px;
}

.menu-section-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #64748b;
}

.menu-item {
    display: block;
    padding: 14px 24px;
    color: #94a3b8;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

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

.menu-item.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-light);
    border-left-color: var(--primary-light);
}

.menu-item i {
    width: 24px;
    margin-right: 12px;
}

.menu-item-dropdown {
    cursor: pointer;
}

.submenu {
    display: none;
    background: rgba(0, 0, 0, 0.2);
}

.submenu.show {
    display: block;
}

.submenu .menu-item {
    padding-left: 60px;
    font-size: 14px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--white);
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--light);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.user-menu:hover {
    background: #e2e8f0;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
}

.user-info {
    text-align: left;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--dark);
}

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

/* Page Content */
.page-content {
    padding: 32px;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

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

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.card-body {
    padding: 24px;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.stat-icon.primary {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0.25) 100%);
    color: var(--primary);
}

.stat-icon.success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.25) 100%);
    color: var(--success);
}

.stat-icon.warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(245, 158, 11, 0.25) 100%);
    color: var(--warning);
}

.stat-icon.danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(239, 68, 68, 0.25) 100%);
    color: var(--danger);
}

.stat-icon.info {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(6, 182, 212, 0.25) 100%);
    color: var(--info);
}

.stat-content h3 {
    font-size: 32px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
}

.stat-content p {
    font-size: 14px;
    color: var(--secondary);
    margin-top: 4px;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

.table th {
    padding: 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--secondary);
    background: var(--light);
    border-bottom: 2px solid #e2e8f0;
}

.table td {
    padding: 16px;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
    color: var(--dark);
}

.table tr:hover td {
    background: rgba(99, 102, 241, 0.03);
}

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

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #059669;
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #d97706;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #dc2626;
}

.badge-info {
    background: rgba(6, 182, 212, 0.15);
    color: #0891b2;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
}

.badge-secondary {
    background: rgba(100, 116, 139, 0.15);
    color: var(--secondary);
}

/* Priority Badges */
.priority-low { background: #dbeafe; color: #1d4ed8; }
.priority-medium { background: #fef3c7; color: #d97706; }
.priority-high { background: #fed7aa; color: #ea580c; }
.priority-urgent { background: #fecaca; color: #dc2626; }

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #059669;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #dc2626;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: #d97706;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    padding: 24px;
}

.pagination a, .pagination span {
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
}

.pagination a {
    background: var(--white);
    color: var(--dark);
    border: 1px solid #e2e8f0;
}

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

.pagination .active span {
    background: var(--primary);
    color: var(--white);
}

/* Grid */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -12px;
}

.col {
    padding: 0 12px;
    flex: 1;
}

.col-6 {
    width: 50%;
    padding: 0 12px;
}

.col-12 {
    width: 100%;
    padding: 0 12px;
}

/* Actions */
.actions {
    display: flex;
    gap: 8px;
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn.view {
    background: rgba(6, 182, 212, 0.1);
    color: var(--info);
}

.action-btn.edit {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.action-btn.delete {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.action-btn:hover {
    transform: scale(1.1);
}

/* Check-in/out buttons */
.attendance-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.attendance-btn {
    flex: 1;
    max-width: 200px;
    padding: 20px;
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.attendance-btn.checkin {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: var(--white);
}

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

.attendance-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.attendance-btn i {
    font-size: 32px;
}

.attendance-btn span {
    font-size: 14px;
    font-weight: 600;
}

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

.empty-state i {
    font-size: 64px;
    opacity: 0.5;
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--dark);
}

/* Checkbox styles for permissions */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* Modal styles */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal {
    background: var(--white);
    border-radius: var(--radius);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .col-6 {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-content {
        padding: 16px;
    }
    
    .header {
        padding: 0 16px;
    }
    
    .login-card {
        padding: 32px 24px;
    }
}