/* Компактная вертикальная панель: навигация и зеркала */
.top-nav-vertical {
    position: fixed;
    top: 12px;
    left: 12px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    width: 74px;
    background: rgba(22, 26, 34, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 6px;
    border-radius: 10px;
    z-index: 1000;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

.top-nav-vertical .version-badge {
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.05);
    padding: 3px 4px;
    border-radius: 5px;
    line-height: 1.2;
}

.top-nav-section {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.top-nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 2px 0;
}

.top-nav-vertical .nav-btn,
.top-nav-vertical .mirror-btn {
    display: block;
    text-align: center;
    text-decoration: none;
    font-size: 11px;
    font-weight: 500;
    padding: 4px 2px;
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.65);
    background: rgba(255, 255, 255, 0.04);
    transition: all 0.15s ease;
    border: 1px solid transparent;
}

.top-nav-vertical .nav-btn:hover,
.top-nav-vertical .mirror-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.12);
}

.top-nav-vertical .nav-btn.active {
    color: #ffffff;
    background: var(--color-accent, #F97316);
    font-weight: 600;
}

.top-nav-vertical .mirror-btn.active {
    color: #60a5fa;
    background: rgba(59, 130, 246, 0.2);
    border-color: rgba(96, 165, 250, 0.35);
    font-weight: 600;
}


.container {
    display: grid;
    grid-template-columns: minmax(500px, 600px) minmax(600px, 900px);
    gap: var(--spacing-xl);
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
}

/* Заголовок */
header {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

/* Панель настроек */
.settings-panel {
    background: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    height: fit-content;
}

.settings-section {
    margin-bottom: var(--spacing-xl);
}

.settings-section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-bg-secondary);
}

/* Поля ввода */
.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.input-group input[type="text"],
.input-group input[type="number"] {
    width: 100%;
    background-color: var(--color-bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.input-group input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.input-group input::placeholder {
    color: var(--color-text-muted);
}

/* Input с кнопкой сброса */
.input-with-btn {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.input-with-btn input {
    flex: 1;
}

.reset-btn {
    background: var(--color-bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
}

.reset-btn:hover {
    background: var(--color-bg-tertiary, #2a2a2a);
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.reset-btn svg {
    width: 16px;
    height: 16px;
}


/* Чекбоксы */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

.checkbox-group label {
    flex: 1;
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    cursor: pointer;
}

.checkbox-group.sub {
    margin-left: var(--spacing-xl);
}

/* Color pickers */
.color-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.color-group label {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.color-with-reset {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.color-group input[type="color"] {
    width: 60px;
    height: 40px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    background: transparent;
}

/* Контейнер для группы градиентных цветов */
.gradient-colors-container {
    border: 2px solid var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.gradient-colors-container .color-group {
    margin-bottom: var(--spacing-sm);
}

.gradient-colors-container .color-group:last-child {
    margin-bottom: 0;
}

/* Range inputs */
.range-group {
    margin-bottom: var(--spacing-md);
}

.range-group label {
    display: flex;
    gap: var(--spacing-sm);
    align-items: baseline;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.range-group label input[type="number"] {
    width: 60px;
    background-color: var(--color-bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    padding: 2px 8px;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    text-align: center;
    transition: border-color var(--transition-fast);
}

.range-group label input[type="number"]:focus {
    outline: none;
    border-color: var(--color-accent);
}


.range-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--color-bg-secondary);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.range-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-accent);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.range-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.range-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-accent);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-large {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* Панель превью */
.preview-panel {
    position: sticky;
    top: var(--spacing-lg);
    height: fit-content;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.preview-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.preview-container {
    background: transparent;
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    min-height: 900px;
    overflow: hidden;
    position: relative;
}

.preview-iframe {
    width: 100%;
    height: 900px;
    border: none;
    background: transparent;
}

.preview-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
}

/* Tooltip */
.tooltip {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin-left: var(--spacing-xs);
    cursor: help;
}

.tooltip-icon {
    width: 16px;
    height: 16px;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.tooltip:hover .tooltip-icon {
    opacity: 1;
}

.tooltip-text {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: var(--spacing-sm);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Инструкции */
.instructions {
    background: var(--color-bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.8;
}

.instructions p {
    margin-bottom: var(--spacing-sm);
}

.instructions p:last-child {
    margin-bottom: 0;
}

.instructions strong {
    color: var(--color-text-secondary);
}

/* Уведомления */
.notification {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-win);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    z-index: 9999;
    animation: slideIn 0.3s ease, slideOut 0.3s ease 2.7s;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }

    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

/* Адаптивность */
@media (max-width: 1400px) {
    .container {
        grid-template-columns: 1fr;
    }

    .preview-panel {
        position: static;
    }
}