.dashboard-container {
    display: flex;
    min-height: 100vh;
    background: var(--light-bg);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 1001;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 5px;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.sidebar-close {
    display: none;
    background: transparent;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    margin-left: auto;
    padding: 5px;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--dark-bg);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: bold;
    border-bottom: 1px solid #333;
}

.sidebar-header i {
    font-size: 28px;
    color: var(--primary-color);
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: #2a2a2a;
    color: white;
}

.nav-item.active {
    background: #2a2a2a;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.nav-item i {
    font-size: 20px;
    width: 24px;
}

.nav-item-external {
    color: #999;
}

.nav-item-external:hover {
    color: var(--primary-color);
}

.nav-external-icon {
    font-size: 12px;
    margin-left: auto;
    width: auto;
}

.nav-divider {
    height: 1px;
    background: #333;
    margin: 10px 20px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid #333;
}

.btn-logout {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid #444;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
    transition: all 0.3s;
}

.btn-logout:hover {
    background: #2a2a2a;
    border-color: var(--error);
    color: var(--error);
}

/* Main Content */
.main-content {
    margin-left: 250px;
    flex: 1;
    padding: 30px;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.dashboard-header h1 {
    font-size: 32px;
    color: var(--text-dark);
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* Instances Grid */
.instances-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.instance-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.instance-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.instance-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.instance-name {
    font-size: 20px;
    font-weight: bold;
    color: var(--text-dark);
}

.instance-status {
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.instance-status.active {
    background: var(--success);
    color: white;
}

.instance-status.inactive {
    background: #6c757d;
    color: white;
}

.instance-status.connecting {
    background: var(--warning);
    color: white;
}

.instance-info {
    margin: 15px 0;
    font-size: 14px;
    color: var(--text-light);
}

.instance-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 8px 0;
}

.token-item {
    position: relative;
}

.token-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.token-value {
    flex: 1;
    word-break: break-all;
}

.btn-copy-token {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
}

.btn-copy-token:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

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

.btn-icon {
    padding: 8px 12px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

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

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

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

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

.btn-icon:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

/* QR Code Section */
.qr-container {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.qr-selector {
    margin-bottom: 30px;
}

.qr-selector label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}

.qr-display {
    text-align: center;
    padding: 40px;
    background: #f9f9f9;
    border-radius: 10px;
    margin: 20px 0;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-display img {
    max-width: 100%;
    border-radius: 10px;
}

.qr-placeholder {
    color: var(--text-light);
    font-size: 18px;
}

.qr-status {
    text-align: center;
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
}

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

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

.qr-status.info {
    background: #d1ecf1;
    color: #0c5460;
}

.qr-status i {
    margin-right: 8px;
}

/* Notificação de cópia */
.copy-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 10000;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease;
    border-left: 4px solid var(--success);
}

.copy-notification.show {
    transform: translateX(0);
    opacity: 1;
}

.copy-notification.error {
    border-left-color: var(--error);
}

.copy-notification i {
    font-size: 20px;
}

.copy-notification.success i {
    color: var(--success);
}

.copy-notification.error i {
    color: var(--error);
}

/* Test Message Section */
.test-message-container {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    max-width: 600px;
}

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

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

.form-control {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

.message-result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 5px;
    display: none;
}

.message-result.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

.message-result.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

/* Statistics Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    font-size: 48px;
    color: var(--primary-color);
}

.stat-info h3 {
    font-size: 36px;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.stat-info p {
    color: var(--text-light);
    font-size: 14px;
}

.instances-stats {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Settings Section */
.settings-container {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    max-width: 600px;
}

.settings-container h2 {
    margin-bottom: 30px;
    color: var(--text-dark);
}

.settings-container h3 {
    margin: 30px 0 20px;
    color: var(--text-dark);
}

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

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header h2 {
    margin: 0;
    color: var(--text-dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s;
}

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

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .sidebar-close {
        display: block;
    }
    
    .dashboard-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 280px;
        transform: translateX(-100%);
        box-shadow: 2px 0 10px rgba(0,0,0,0.3);
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .sidebar-header {
        padding: 15px;
        font-size: 18px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .sidebar-nav {
        display: flex;
        overflow-x: auto;
        padding: 10px 0;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-item {
        white-space: nowrap;
        padding: 12px 15px;
        min-width: fit-content;
    }
    
    .main-content {
        margin-left: 0;
        padding: 15px;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .dashboard-header h1 {
        font-size: 24px;
    }
    
    .instances-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .instance-card {
        padding: 20px;
    }
    
    .instance-actions {
        flex-wrap: wrap;
    }
    
    .btn-icon {
        flex: 1;
        min-width: 80px;
    }
    
    .qr-container {
        padding: 20px;
    }
    
    .qr-display {
        padding: 20px;
        min-height: 250px;
    }
    
    .test-message-container,
    .settings-container {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .modal-content {
        width: 95%;
        margin: 10px;
    }
    
    .form-control {
        font-size: 16px; /* Evita zoom no iOS */
    }
}

/* Responsive - Tablet */
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }
    
    .main-content {
        margin-left: 200px;
        padding: 20px;
    }
    
    .instances-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

/* Melhorias para touch devices */
@media (hover: none) and (pointer: coarse) {
    .btn-icon,
    .btn-copy-token,
    .nav-item {
        min-height: 44px; /* Tamanho mínimo recomendado para touch */
    }
    
    .instance-card {
        padding: 20px;
    }
    
    .form-control {
        padding: 14px; /* Maior área de toque */
    }
}