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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px 30px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo i {
    font-size: 2.5rem;
    color: #25D366;
}

.logo h1 {
    color: #333;
    font-size: 1.8rem;
    font-weight: 600;
}

.controls {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: #25D366;
    color: white;
}

.btn-primary:hover {
    background: #20b358;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

/* Info Banner */
.info-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 15px 15px 0 0;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.banner-content i {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Info Panel */
.info-panel {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 0 0 15px 15px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tabs-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    overflow-x: auto;
}

.tab {
    padding: 15px 25px;
    cursor: pointer;
    border: none;
    background: none;
    font-size: 14px;
    font-weight: 500;
    color: #6c757d;
    transition: all 0.3s ease;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.tab:hover {
    background: rgba(37, 211, 102, 0.1);
    color: #25D366;
}

.tab.active {
    background: #25D366;
    color: white;
}

.tab .close-tab {
    margin-left: 8px;
    padding: 2px 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    font-size: 12px;
}

.tab .close-tab:hover {
    background: rgba(255, 255, 255, 0.3);
}

.tab-content {
    height: 600px;
    position: relative;
}

.tab-pane {
    display: none;
    height: 100%;
}

.tab-pane.active {
    display: block;
}

.whatsapp-frame {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 0 0 15px 15px;
}

.accounts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.account-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.account-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.account-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--theme-color, #25D366);
}

.account-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.account-info h3 {
    color: #333;
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.account-status {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 500;
}

.status-connected {
    background: #d4edda;
    color: #155724;
}

.status-disconnected {
    background: #f8d7da;
    color: #721c24;
}

.status-loading {
    background: #fff3cd;
    color: #856404;
}

.account-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.account-preview {
    width: 100%;
    height: 200px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    margin: 15px 0;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.account-preview:hover {
    border-color: #25D366;
    background: rgba(37, 211, 102, 0.05);
}

.account-preview iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 6px;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

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

.modal-header {
    padding: 25px 30px 20px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: #333;
    font-size: 1.4rem;
    margin: 0;
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: #333;
}

.modal-body {
    padding: 20px 30px 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #25D366;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 30px;
}

/* Theme Colors */
.theme-green { --theme-color: #25D366; }
.theme-blue { --theme-color: #007bff; }
.theme-purple { --theme-color: #6f42c1; }
.theme-orange { --theme-color: #fd7e14; }
.theme-red { --theme-color: #dc3545; }

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .controls {
        width: 100%;
        justify-content: center;
    }
    
    .accounts-grid {
        grid-template-columns: 1fr;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
    
    .tab-content {
        height: 500px;
    }
}

/* 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: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6c757d;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 10px;
    color: #495057;
}

.empty-state p {
    margin-bottom: 30px;
    line-height: 1.6;
}