/* Основной контент */
.main-content {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease;
}

/* ========== КОНТЕЙНЕР ========== */
.bgmodel-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--light-bg);
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* Заголовок */
.bgmodel-header {
    margin-bottom: 24px;
}

.bgmodel-header-top {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 6px;
}

.bgmodel-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0;
}

.bgmodel-history-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--primary);
    background: var(--primary);
    color: var(--white);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-fast);
}

.bgmodel-history-link:hover {
    opacity: 0.85;
}

.bgmodel-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Двухколоночный макет */
.bgmodel-layout {
    display: grid;
    grid-template-columns: 520px 1fr;
    gap: 24px;
    align-items: start;
}

/* ========== ЛЕВАЯ КОЛОНКА ========== */
.settings-column {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: var(--shadow-sm);
}

/* Шаг-блок */
.step-block {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.step-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-light);
}

.step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

/* Группа настроек */
.settings-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.settings-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.settings-group-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-group-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.settings-group-hint {
    font-size: 12px;
    color: var(--text-tertiary);
    font-style: italic;
}

.tooltip-icon {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--light-bg);
    border: 1px solid var(--border-light);
    color: var(--text-tertiary);
    font-size: 9px;
    cursor: help;
    flex-shrink: 0;
}

.tooltip-icon .tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--white);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    margin-bottom: 6px;
    z-index: 10;
    max-width: 240px;
    white-space: normal;
    text-align: center;
}

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

/* ========== ПОЛЯ ВВОДА ========== */
.settings-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--light-bg);
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    transition: var(--transition-fast);
    box-sizing: border-box;
}

.settings-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--card-bg);
}

.settings-input::placeholder {
    color: var(--text-tertiary);
}

.settings-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--light-bg);
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
    resize: vertical;
    transition: var(--transition-fast);
    box-sizing: border-box;
}

.settings-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--card-bg);
}

.settings-textarea::placeholder {
    color: var(--text-tertiary);
}

/* ========== RADIO GROUP (Модель) ========== */
.radio-group {
    display: flex;
    gap: 12px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-primary);
    padding: 8px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--light-bg);
    transition: var(--transition-fast);
    flex: 1;
    justify-content: center;
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-option.selected {
    border-color: var(--primary);
    background: var(--primary-lighter);
    color: var(--primary);
    font-weight: 600;
}

.radio-option:hover:not(.selected) {
    border-color: var(--primary);
}

/* ========== ОПЦИИ МОДЕЛИ (скрытые) ========== */
.model-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 14px;
    background: var(--light-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    animation: fadeIn 0.25s ease;
}

/* ========== КНОПКИ-ТЕГИ ========== */
.tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--light-bg);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

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

.tag-btn.active {
    border-color: var(--primary);
    background: var(--primary-lighter);
    color: var(--primary);
    font-weight: 600;
}

/* ========== ПРЕСЕТЫ ФОНА ========== */
.preset-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.preset-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 8px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--light-bg);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
}

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

.preset-btn.active {
    border-color: var(--primary);
    background: var(--primary-lighter);
    color: var(--primary);
    font-weight: 600;
}

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

/* ========== ДОПОЛНИТЕЛЬНЫЕ НАСТРОЙКИ (аккордион) ========== */
.extra-settings {
    overflow: hidden;
}

.extra-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 14px;
    background: var(--light-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
}

.extra-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.extra-toggle .chevron {
    margin-left: auto;
    transition: transform 0.25s;
}

.extra-toggle.open .chevron {
    transform: rotate(180deg);
}

.extra-content {
    display: none;
    flex-direction: column;
    gap: 14px;
    padding-top: 14px;
}

.extra-content.open {
    display: flex;
    animation: fadeIn 0.25s ease;
}

/* Соотношение сторон */
.aspect-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.aspect-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--light-bg);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.aspect-btn.active {
    border-color: var(--primary);
    background: var(--primary-lighter);
    color: var(--primary);
    font-weight: 600;
}

.aspect-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.aspect-icon svg {
    opacity: 0.6;
}

.aspect-btn.active .aspect-icon svg {
    opacity: 1;
}

.aspect-name {
    font-weight: 500;
}

.aspect-size {
    font-size: 10px;
    color: var(--text-tertiary);
    display: block;
}

/* ========== КНОПКА ГЕНЕРАЦИИ ========== */
.generate-btn {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.generate-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.generate-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.generate-btn.loading {
    pointer-events: none;
}

.generate-btn .fa-star {
    color: #FFD700;
}

.btn-reset {
    width: 100%;
    padding: 12px 24px;
    background: var(--light-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-fast);
}

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

/* ========== УВЕДОМЛЕНИЕ ========== */
.editor-notice {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    line-height: 1.5;
    animation: fadeIn 0.3s ease;
}

.editor-notice.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success);
}

.editor-notice.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

/* ========== ПРАВАЯ КОЛОНКА: Результат ========== */
.preview-column {
    position: sticky;
    top: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.preview-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.preview-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

/* Пустое состояние */
.preview-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
}

.preview-empty-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-lighter), rgba(124, 58, 237, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 20px;
}

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

.preview-empty-description {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 280px;
    line-height: 1.5;
}

/* Состояние загрузки */
.preview-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 20px;
}

.loading-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.loading-subtext {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Готовый результат */
.preview-generated {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.generated-image {
    max-width: 100%;
    max-height: 600px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

/* Метаданные результата */
.result-meta {
    padding: 14px 16px;
    background: var(--light-bg);
    border-top: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.result-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.result-meta-item i {
    width: 16px;
    color: var(--primary);
    text-align: center;
}

/* Действия с результатом */
.preview-actions {
    display: flex;
    gap: 12px;
}

.preview-action-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.preview-action-btn:hover:not(:disabled) {
    background: var(--light-bg);
    border-color: var(--primary);
    color: var(--primary);
}

.preview-action-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ========== УМНЫЕ ПОДСКАЗКИ ========== */
.smart-tips {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-sm);
}

.smart-tips-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.tip-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.tip-item .tip-icon {
    width: 28px;
    height: 28px;
    background: var(--primary-lighter);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 12px;
    color: var(--primary);
}

.tip-item b {
    color: var(--text-primary);
}

/* ========== АНИМАЦИИ ========== */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== АДАПТИВНОСТЬ ========== */
@media (max-width: 1200px) {
    .bgmodel-layout {
        grid-template-columns: 460px 1fr;
    }
}

@media (max-width: 1024px) {
    .bgmodel-layout {
        grid-template-columns: 1fr;
    }

    .preview-column {
        position: static;
    }
}

@media (max-width: 768px) {
    .main-content {
        margin-left: 0;
        padding-top: 70px;
    }

    .bgmodel-container {
        padding: 16px;
    }

    .bgmodel-title {
        font-size: 20px;
    }

    .settings-column {
        padding: 16px;
    }

    .preset-group {
        grid-template-columns: repeat(3, 1fr);
    }

    .aspect-grid {
        grid-template-columns: 1fr;
    }

    .radio-group {
        flex-direction: column;
    }

    .preview-card {
        min-height: 300px;
    }
}