:root {
    --primary-color: #326ce5;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-bg: #1a1d23;
    --card-bg: #242832;
    --border-color: #3a3f4b;
    --text-primary: #e4e6eb;
    --text-secondary: #9a9ca5;
    --hover-bg: #2d3139;
    --input-bg: #1e2128;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    background: linear-gradient(135deg, #1a1d23 0%, #242832 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    transition: max-width 0.3s ease;
}

/* Для Config Viewer - позволяем расширяться */
.config-viewer-container {
    max-width: 1400px;
}

/* Еще больше расширяем когда показано сравнение */
.config-viewer-container.comparing {
    max-width: 98%;
}

/* Для браузеров с поддержкой :has() */
.config-viewer-container:has(.compare-area[style*="display: block"]),
.config-viewer-container:has(.compare-area:not([style*="display: none"])) {
    max-width: 98%;
}

header {
    text-align: center;
    padding: 40px 20px;
    background: var(--card-bg);
    border-radius: 16px;
    margin-bottom: 30px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #326ce5 0%, #5ca3ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
}

/* Navigation */
.navigation {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    background: var(--card-bg);
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.nav-link {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.nav-link:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.nav-link.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, #5ca3ff 100%);
    color: white;
}

.nav-link .btn-icon {
    font-size: 18px;
}

.content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card, .form-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    width: 100%;
}

.info-card h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card ol, .info-card ul {
    margin-left: 20px;
    color: var(--text-secondary);
}

.info-card li {
    margin-bottom: 10px;
}

.info-card code {
    background: var(--input-bg);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--info-color);
}

.tech-details {
    background: linear-gradient(135deg, rgba(50, 108, 229, 0.1) 0%, rgba(92, 163, 255, 0.05) 100%);
    border: 1px solid rgba(50, 108, 229, 0.2);
}

.tech-note {
    margin-top: 20px;
    padding: 15px;
    background: var(--input-bg);
    border-radius: 8px;
    border-left: 4px solid var(--info-color);
}

.form-card {
    position: relative;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background: var(--input-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(50, 108, 229, 0.2);
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: var(--danger-color);
}

.form-group input:valid:not(:placeholder-shown) {
    border-color: var(--success-color);
}

.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--input-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s;
    cursor: pointer;
}

.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(50, 108, 229, 0.2);
}

.form-group select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.input-hint {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

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

.btn-icon {
    font-size: 18px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #5ca3ff 100%);
    color: white;
    width: 100%;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(50, 108, 229, 0.4);
}

.btn-success {
    background: var(--success-color);
    color: white;
    width: 100%;
}

.btn-success:hover:not(:disabled) {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.btn-secondary {
    background: var(--border-color);
    color: var(--text-primary);
    width: 100%;
    margin-top: 10px;
}

.btn-secondary:hover:not(:disabled) {
    background: var(--hover-bg);
}

.btn-small {
    padding: 10px 16px;
    font-size: 14px;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    width: 100%;
}

.btn-danger:hover:not(:disabled) {
    background: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
}

.status-message {
    margin-top: 20px;
    padding: 16px;
    border-radius: 8px;
    font-size: 14px;
    animation: fadeIn 0.3s;
}

.status-loading {
    background: rgba(23, 162, 184, 0.1);
    border: 1px solid var(--info-color);
    color: var(--info-color);
}

.status-info {
    background: rgba(23, 162, 184, 0.1);
    border: 1px solid var(--info-color);
    color: var(--info-color);
}

.status-success {
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.status-error {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.result-area {
    margin-top: 30px;
    padding: 30px;
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1) 0%, rgba(40, 167, 69, 0.05) 100%);
    border: 2px solid var(--success-color);
    border-radius: 12px;
    text-align: center;
    animation: slideIn 0.5s;
}

.success-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.result-area h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--success-color);
}

.result-info {
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.result-info strong {
    color: var(--text-primary);
}

.result-area .btn {
    margin-top: 20px;
}

/* Kubeconfig List */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.card-header h2 {
    margin: 0;
    font-size: 20px;
}

.kubeconfig-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.kubeconfig-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s;
}

.kubeconfig-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(50, 108, 229, 0.2);
}

.kubeconfig-info {
    flex: 1;
}

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

.kubeconfig-details {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.kubeconfig-detail {
    display: flex;
    align-items: center;
    gap: 5px;
}

.kubeconfig-actions {
    display: flex;
    gap: 10px;
}

.btn-delete {
    padding: 10px 20px;
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s;
}

.btn-delete:hover:not(:disabled) {
    background: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

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

/* Loading and Empty States */
.loading-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.loading-state .spinner {
    font-size: 48px;
    display: block;
    margin-bottom: 20px;
}

.loading-state p {
    font-size: 16px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.empty-state p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.empty-state .btn {
    max-width: 300px;
    margin: 0 auto;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    animation: slideIn 0.3s;
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: 22px;
    color: var(--text-primary);
}

.modal-body {
    padding: 30px;
}

.modal-body p {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-body strong {
    color: var(--text-primary);
}

.warning-text {
    padding: 15px;
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    color: var(--danger-color) !important;
    font-weight: 500;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: 15px;
}

.modal-footer .btn {
    flex: 1;
    margin: 0;
}

footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.spinner {
    display: inline-block;
    animation: spin 1s linear infinite;
}

/* YAML Viewer */
.yaml-area {
    margin-top: 30px;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    animation: slideIn 0.5s;
}

.yaml-header {
    padding: 20px;
    background: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.yaml-header h3 {
    margin: 0;
    font-size: 18px;
    color: var(--text-primary);
}

.yaml-info {
    flex: 1;
    font-size: 14px;
    color: var(--text-secondary);
}

.yaml-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.yaml-header .btn {
    width: auto;
    margin: 0;
}

.yaml-content {
    padding: 20px;
    margin: 0;
    overflow-x: auto;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--input-bg);
    white-space: pre;
    max-height: 600px;
    overflow-y: auto;
}

.yaml-content::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.yaml-content::-webkit-scrollbar-track {
    background: var(--card-bg);
    border-radius: 5px;
}

.yaml-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

.yaml-content::-webkit-scrollbar-thumb:hover {
    background: var(--hover-bg);
}

/* Compare Area */
.compare-area {
    margin-top: 30px;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    animation: slideIn 0.5s;
    width: 100%;
}

.compare-header {
    padding: 20px;
    background: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.compare-header h3 {
    margin: 0 0 10px 0;
    font-size: 18px;
    color: var(--text-primary);
}

.diff-legend {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 13px;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--text-secondary);
}

.legend-added {
    color: var(--success-color);
}

.legend-removed {
    color: var(--danger-color);
}

.legend-changed {
    color: var(--warning-color);
}

.compare-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    min-width: 0; /* Позволяет grid элементам сжиматься */
}

.compare-column {
    display: flex;
    flex-direction: column;
    border-right: 2px solid var(--border-color);
    min-width: 0; /* Позволяет flex элементам сжиматься */
    overflow: hidden;
}

.compare-column:last-child {
    border-right: none;
}

.compare-column-header {
    padding: 15px 20px;
    background: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.compare-column-header h4 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: var(--text-primary);
}

.compare-column-header .yaml-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 10px;
}

.timestamp {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
}

.compare-column-header .btn {
    width: 100%;
    margin: 0;
    flex-shrink: 0;
}

.compare-yaml {
    max-height: 600px;
    flex: 1;
    margin: 0;
    font-size: 12px;
}

/* Подсветка различий в YAML */
.yaml-line {
    display: block;
    padding: 2px 4px;
    margin: 0;
    line-height: 1.6;
}

.yaml-line-removed {
    background-color: rgba(220, 53, 69, 0.25);
    border-left: 4px solid var(--danger-color);
    padding-left: 8px;
}

.yaml-line-added {
    background-color: rgba(40, 167, 69, 0.25);
    border-left: 4px solid var(--success-color);
    padding-left: 8px;
}

.yaml-line-changed {
    background-color: rgba(255, 193, 7, 0.2);
    border-left: 4px solid var(--warning-color);
    padding-left: 8px;
}

.yaml-line-unchanged {
    /* Без подсветки */
    padding-left: 4px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }

    header {
        padding: 30px 20px;
    }

    h1 {
        font-size: 28px;
    }

    .subtitle {
        font-size: 14px;
    }

    .navigation {
        flex-direction: column;
        gap: 10px;
    }

    .info-card, .form-card {
        padding: 20px;
    }

    .btn {
        padding: 12px 20px;
        font-size: 14px;
    }

    .result-area {
        padding: 20px;
    }

    .success-icon {
        font-size: 48px;
    }

    .result-area h3 {
        font-size: 20px;
    }

    .kubeconfig-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .kubeconfig-details {
        flex-direction: column;
        gap: 8px;
    }

    .kubeconfig-actions {
        width: 100%;
    }

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

    .modal-content {
        width: 95%;
        margin: 20px;
    }

    .modal-header {
        padding: 20px;
    }

    .modal-body {
        padding: 20px;
    }

    .modal-footer {
        padding: 15px 20px;
        flex-direction: column;
    }

    .yaml-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .yaml-actions {
        width: 100%;
    }

    .yaml-header .btn {
        width: 100%;
    }

    .yaml-content {
        font-size: 11px;
        padding: 15px;
        max-height: 400px;
    }

    .compare-container {
        grid-template-columns: 1fr;
    }

    .compare-column {
        border-right: none;
        border-bottom: 2px solid var(--border-color);
    }

    .compare-column:last-child {
        border-bottom: none;
    }
    
    .diff-legend {
        font-size: 12px;
        gap: 10px;
    }
    
    .compare-yaml {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 24px;
    }

    .info-card h2 {
        font-size: 18px;
    }

    .form-group input {
        font-size: 14px;
    }
}