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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --background: #f8fafc;
    --surface: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

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

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: var(--surface);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

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

.company-logo {
    max-width: 120px;
    height: auto;
    margin-bottom: 16px;
}

.logo-container h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary);
}

.login-form input[type="text"],
.login-form input[type="password"],
.login-form input[type="email"],
.login-form input[type="number"],
.login-form select,
.login-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.login-form input:focus,
.login-form select:focus,
.login-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 400;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.info-box {
    margin-top: 24px;
    padding: 16px;
    background-color: #fef3c7;
    border-left: 4px solid var(--warning-color);
    border-radius: 8px;
}

.info-text {
    font-size: 13px;
    color: #92400e;
    margin: 4px 0;
}

.error-message {
    margin-top: 16px;
    padding: 12px 16px;
    background-color: #fee2e2;
    border-left: 4px solid var(--danger-color);
    border-radius: 8px;
    color: #991b1b;
    font-size: 14px;
}

.success-message {
    margin-top: 16px;
    padding: 12px 16px;
    background-color: #d1fae5;
    border-left: 4px solid var(--success-color);
    border-radius: 8px;
    color: #065f46;
    font-size: 14px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
}

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

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #475569;
}

.btn-block {
    width: 100%;
}

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

/* Loader */
.loader {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Dashboard Layout */
.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: #1e293b;
    color: white;
    padding: 24px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 0 24px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    max-width: 100px;
    height: auto;
    margin-bottom: 12px;
}

.sidebar-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.sidebar-subtitle {
    font-size: 12px;
    color: #94a3b8;
}

.sidebar-nav {
    padding: 24px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: #cbd5e1;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

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

.nav-item.active {
    background-color: var(--primary-color);
    color: white;
    border-left: 4px solid white;
}

.nav-icon {
    width: 20px;
    height: 20px;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 16px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.user-details {
    flex: 1;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
    color: white;
}

.user-role {
    font-size: 12px;
    color: #94a3b8;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 24px;
}

.page-header {
    margin-bottom: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.page-actions {
    display: flex;
    gap: 12px;
}

/* Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--surface);
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.2s;
}

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

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.stat-icon.primary { background-color: rgba(37, 99, 235, 0.1); color: var(--primary-color); }
.stat-icon.success { background-color: rgba(16, 185, 129, 0.1); color: var(--success-color); }
.stat-icon.danger { background-color: rgba(239, 68, 68, 0.1); color: var(--danger-color); }
.stat-icon.warning { background-color: rgba(245, 158, 11, 0.1); color: var(--warning-color); }

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.stat-change {
    font-size: 13px;
    font-weight: 500;
}

.stat-change.positive { color: var(--success-color); }
.stat-change.negative { color: var(--danger-color); }

/* Table */
.card {
    background: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

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

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

.table-container {
    overflow-x: auto;
}

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

thead th {
    text-align: left;
    padding: 12px 16px;
    background-color: var(--background);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tbody td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

tbody tr:hover {
    background-color: var(--background);
}

.table-actions {
    display: flex;
    gap: 8px;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-primary {
    background-color: #dbeafe;
    color: #1e40af;
}

.badge-secondary {
    background-color: #f1f5f9;
    color: #475569;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--surface);
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.modal-close:hover {
    background-color: var(--background);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Form */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-help {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 24px;
}

.empty-icon {
    font-size: 64px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Code Block */
.code-block {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 16px;
    border-radius: 8px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    overflow-x: auto;
    position: relative;
}

.code-block pre {
    margin: 0;
}

.copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.copy-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
        z-index: 1000;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}