:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --light-bg: #f8f9fa;
    --dark-text: #343a40;
    --light-text: #f8f9fa;
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --border-radius: 10px;
    --transition-speed: 0.3s;
}

body {
    background-color: var(--light-bg);
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--dark-text);
    transition: background-color var(--transition-speed);
    line-height: 1.6;
}

/* Cards */
.main-card {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    margin-bottom: 2rem;
}

.info-card {
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--card-shadow);
}

.card-header {
    border-bottom: none;
    padding: 1.25rem;
}

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)) !important;
}

.card-body {
    padding: 1.75rem;
}

/* Form elements */
.form-control {
    border-radius: 6px;
    padding: 0.75rem 1rem;
    border: 1px solid #dee2e6;
    transition: all var(--transition-speed);
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
}

.input-group-text {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
}

textarea.form-control {
    resize: vertical;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    border-radius: 6px;
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-speed);
    font-weight: 500;
}

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

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

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

.btn-success:hover, .btn-success:focus {
    background-color: #27ae60;
    border-color: #27ae60;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 204, 113, 0.3);
}

.btn-info {
    background-color: #17a2b8;
    border-color: #17a2b8;
    color: white;
}

.btn-info:hover, .btn-info:focus {
    background-color: #138496;
    border-color: #117a8b;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(23, 162, 184, 0.3);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.2);
}

.btn-outline-danger {
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.btn-outline-danger:hover, .btn-outline-danger:focus {
    background-color: var(--danger-color);
    color: white;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.btn-lg {
    font-size: 1.1rem;
    padding: 0.875rem 1.75rem;
}

/* Progress bar */
.progress {
    height: 25px;
    border-radius: 6px;
    overflow: hidden;
    margin: 1rem 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    background-color: #e9ecef;
}

.progress-bar {
    background-color: var(--primary-color);
    transition: width 0.5s ease;
}

/* Status container */
.status-container {
    background-color: rgba(52, 152, 219, 0.05);
    border: 1px solid rgba(52, 152, 219, 0.1);
    border-radius: var(--border-radius);
}

.server-container {
    background-color: rgba(52, 152, 219, 0.03);
    border: 1px solid rgba(52, 152, 219, 0.1);
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
}

.server-container:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* Account pairs styling */
.account-pair {
    position: relative;
    padding: 0.5rem 0;
}

.account-pair hr {
    margin: 1.5rem 0;
    border-color: rgba(52, 152, 219, 0.2);
}

.account-pair h5 {
    color: var(--primary-dark);
    font-weight: 600;
}

/* Status text */
#status-text, #progress-text, #current-account-text {
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0.5rem 0;
}

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    color: #c0392b;
}

.alert-success {
    background-color: rgba(46, 204, 113, 0.1);
    color: #27ae60;
}

.alert-info {
    background-color: rgba(52, 152, 219, 0.1);
    color: #2980b9;
}

/* Connection test details */
#connectionTestDetails div {
    padding: 0.25rem 0;
}

.text-success {
    color: #27ae60 !important;
}

.text-danger {
    color: #c0392b !important;
}

/* Responsive adjustments */
@media (max-width: 767.98px) {
    .card-body {
        padding: 1.25rem;
    }
    
    .server-container {
        margin-bottom: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
    }
    
    .d-flex.justify-content-center {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .me-2 {
        margin-right: 0 !important;
    }
}

@media (max-width: 575.98px) {
    h1 {
        font-size: 1.7rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .form-label {
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .account-pair {
        padding: 0.25rem 0;
    }
}