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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f6f9;
}

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

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 2rem;
}

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

.login-header h1 {
    color: #2d3748;
    margin-bottom: 0.5rem;
    font-size: 2rem;
}

.login-header p {
    color: #718096;
    font-size: 0.9rem;
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.login-footer p {
    color: #718096;
    font-size: 0.85rem;
}

/* Layout Styles */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 250px;
    height: 100vh;
    background: #2d3748;
    color: white;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid #4a5568;
}

.sidebar-header h2 {
    font-size: 1.5rem;
    color: white;
}

.sidebar-nav ul {
    list-style: none;
    padding: 1rem 0;
}

.sidebar-nav li {
    margin: 0.5rem 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: #cbd5e0;
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar-nav a:hover,
.sidebar-nav li.active a {
    background: #4a5568;
    color: white;
}

.sidebar-nav i {
    margin-right: 0.75rem;
    width: 20px;
}

.main-content {
    margin-left: 250px;
    min-height: 100vh;
    background: #f7fafc;
}

.header {
    background: white;
    padding: 1rem 2rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header h1 {
    color: #2d3748;
    font-size: 1.75rem;
}

.user-info {
    color: #718096;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: #4a5568;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.mobile-menu-toggle:hover {
    background-color: #f7fafc;
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.dashboard-content,
.customers-content {
    padding: 2rem;
}

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

.stat-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e2e8f0;
    margin-right: 1rem;
    font-size: 1.5rem;
    color: #4a5568;
}

.stat-icon.active {
    background: #c6f6d5;
    color: #25855a;
}

.stat-icon.revenue {
    background: #fed7d7;
    color: #c53030;
}

.stat-icon.leads {
    background: #bee3f8;
    color: #2b6cb0;
}

.stat-info h3 {
    font-size: 1.875rem;
    font-weight: bold;
    color: #2d3748;
    margin-bottom: 0.25rem;
}

.stat-info p {
    color: #718096;
    font-size: 0.875rem;
}

/* Dashboard Section */
.dashboard-section {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.section-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.section-header h2 {
    color: #2d3748;
    font-size: 1.25rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #374151;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.login-form .form-group input {
    padding: 1rem;
    border-radius: 8px;
    border: 2px solid #e2e8f0;
    font-size: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    gap: 0.5rem;
}

.btn-primary {
    background: #3b82f6;
    color: white;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

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

.btn-outline {
    background: transparent;
    color: #374151;
    border: 1px solid #d1d5db;
}

.btn-outline:hover {
    background: #f9fafb;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
}

/* Tables */
.table-container {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.data-table th {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table td {
    color: #4b5563;
    font-size: 0.875rem;
}

.data-table tr:hover {
    background: #f9fafb;
}

.actions {
    display: flex;
    gap: 0.5rem;
}

.text-center {
    text-align: center;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-active {
    background: #d1fae5;
    color: #065f46;
}

.status-lead {
    background: #dbeafe;
    color: #1e40af;
}

.status-inactive {
    background: #f3f4f6;
    color: #374151;
}

/* Search */
.search-section {
    margin-bottom: 2rem;
}

.search-form {
    display: flex;
    gap: 1rem;
    align-items: center;
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.search-input {
    position: relative;
    flex: 1;
}

.search-input i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
}

.search-input input {
    padding-left: 2.5rem;
    margin-bottom: 0;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: block;
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
}

.modal-small {
    max-width: 400px;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: #2d3748;
    font-size: 1.25rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

.close:hover {
    color: #333;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
        z-index: 1001;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .mobile-menu-overlay.show {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header {
        padding: 1rem;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .dashboard-content,
    .customers-content {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .search-form {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }
    
    .search-form .search-input {
        margin-bottom: 0.5rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 2% auto;
    }
    
    .actions {
        flex-direction: row;
        gap: 0.25rem;
    }
    
    .btn-sm {
        padding: 0.4rem 0.6rem;
        font-size: 0.7rem;
    }
    
    .data-table {
        font-size: 0.8rem;
        min-width: 500px;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem;
        white-space: nowrap;
    }
    
    .header-actions {
        flex-wrap: wrap;
    }
    
    .user-info {
        display: none;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0.75rem;
    }
    
    .header h1 {
        font-size: 1.25rem;
    }
    
    .dashboard-content,
    .customers-content {
        padding: 0.75rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
    
    .data-table {
        font-size: 0.75rem;
        min-width: 400px;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.4rem;
        white-space: nowrap;
    }
    
    .actions {
        gap: 0.2rem;
    }
    
    .btn-sm {
        padding: 0.3rem 0.5rem;
    }
    
    .modal-content {
        width: 98%;
        margin: 1% auto;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .header-actions,
    .actions,
    .search-section {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .modal {
        display: none !important;
    }
}