/**
 * 统一封面系统样式
 * 集成比例选择器和图片裁切器的所有样式
 */

/* ==================== 封面比例选择器样式 ==================== */

.cover-ratio-section {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: var(--upload-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
}

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

.cover-ratio-title {
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
    font-size: 1em;
}

.current-ratio-display {
    font-size: 0.85em;
    color: var(--color-text-muted);
    background: var(--card-bg);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--card-border);
}

.ratio-selector-container {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-md);
    align-items: start;
}

.ratio-select-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.ratio-select-wrapper label {
    font-weight: 500;
    color: var(--color-text-secondary);
    font-size: 0.9em;
}

.ratio-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    background: var(--input-bg);
    color: var(--input-text);
    font-size: 0.9em;
    transition: border-color 0.3s ease;
}

.ratio-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.ratio-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    height: 60px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    position: relative;
}

.ratio-preview-shape {
    background: var(--color-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    opacity: 0.8;
    position: relative;
}

.ratio-preview-shape::after {
    content: attr(data-ratio);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.7em;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
    white-space: nowrap;
}

/* 自定义尺寸输入区域 */
.custom-dimensions {
    display: none;
    grid-column: 1 / -1;
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    animation: slideDown 0.3s ease-out;
}

.custom-dimensions.show {
    display: block;
}

.custom-dimensions-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.custom-dimensions-header h4 {
    margin: 0;
    font-size: 0.9em;
    color: var(--color-text-primary);
}

.custom-inputs {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-sm);
    align-items: end;
}

.dimension-input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dimension-input-group label {
    font-size: 0.8em;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.dimension-input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    background: var(--card-bg);
    color: var(--input-text);
    font-size: 0.9em;
    text-align: center;
}

.dimension-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.dimension-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.custom-ratio-info {
    grid-column: 1 / -1;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: 4px;
    border-left: 4px solid var(--color-primary);
}

.custom-ratio-info .ratio-display {
    font-weight: 600;
    color: var(--color-primary);
}

.ratio-description {
    margin-top: var(--spacing-xs);
    font-size: 0.8em;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* 快速比例切换按钮 */
.quick-ratio-buttons {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.quick-ratio-btn {
    padding: 6px 12px;
    background: var(--button-bg-secondary);
    border: 1px solid var(--button-border-secondary);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-size: 0.8em;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.quick-ratio-btn:hover {
    background: var(--navbar-hover-bg);
    border-color: var(--color-primary);
    color: var(--color-text-primary);
}

.quick-ratio-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* 比例保存/重置按钮 */
.ratio-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    justify-content: flex-end;
}

.ratio-action-btn {
    padding: 6px 12px;
    font-size: 0.85em;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ratio-action-btn.save {
    background: var(--color-success);
    color: white;
}

.ratio-action-btn.reset {
    background: var(--button-bg-secondary);
    border-color: var(--button-border-secondary);
    color: var(--color-text-secondary);
}

.ratio-action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* ==================== 图片裁切器样式 ==================== */

.image-cropper-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.image-cropper-modal.show {
    opacity: 1;
    visibility: visible;
}

.cropper-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    cursor: pointer;
}

.cropper-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90vw;
    max-width: 1200px;
    height: 85vh;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.cropper-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--card-border);
}

.cropper-header h3 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 1.2em;
}

.crop-close-btn {
    background: none;
    border: none;
    font-size: 1.5em;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.crop-close-btn:hover {
    background: var(--navbar-hover-bg);
    color: var(--color-text-primary);
}

.cropper-body {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr auto;
    overflow: hidden;
}

.crop-main-area {
    position: relative;
    overflow: hidden;
    background: var(--input-bg);
}

.crop-image-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.crop-image {
    max-width: 100%;
    max-height: 100%;
    user-select: none;
    pointer-events: none;
}

.crop-box {
    position: absolute;
    border: 2px solid var(--color-primary);
    cursor: move;
    background: rgba(255, 255, 255, 0.1);
}

.crop-outline {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border: 2px dashed rgba(255, 255, 255, 0.5);
    pointer-events: none;
}

.crop-guidelines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.guideline {
    position: absolute;
    background: rgba(255, 255, 255, 0.3);
}

.guideline-h {
    width: 100%;
    height: 1px;
}

.guideline-v {
    height: 100%;
    width: 1px;
}

.guideline-h-1 { top: 33.33%; }
.guideline-h-2 { top: 66.66%; }
.guideline-v-1 { left: 33.33%; }
.guideline-v-2 { left: 66.66%; }

.crop-handles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.crop-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--color-primary);
    border: 2px solid white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
    transition: all 0.2s ease;
}

.crop-handle:hover {
    background: var(--color-primary-dark);
    transform: translate(-50%, -50%) scale(1.2);
}

.crop-handle-nw { top: 0; left: 0; cursor: nw-resize; }
.crop-handle-ne { top: 0; right: 0; cursor: ne-resize; }
.crop-handle-sw { bottom: 0; left: 0; cursor: sw-resize; }
.crop-handle-se { bottom: 0; right: 0; cursor: se-resize; }
.crop-handle-n { top: 0; left: 50%; cursor: n-resize; }
.crop-handle-s { bottom: 0; left: 50%; cursor: s-resize; }
.crop-handle-w { left: 0; top: 50%; cursor: w-resize; }
.crop-handle-e { right: 0; top: 50%; cursor: e-resize; }

.crop-sidebar {
    width: 280px;
    background: var(--upload-bg);
    border-left: 1px solid var(--card-border);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.crop-preview-section h4 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--color-text-primary);
    font-size: 1em;
}

.crop-preview {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.crop-preview-canvas {
    border: 2px solid var(--card-border);
    border-radius: var(--radius-sm);
    background: white;
}

.crop-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.crop-dimensions,
.crop-ratio {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

.crop-size,
.ratio-text {
    font-weight: 600;
    color: var(--color-primary);
}

.crop-controls {
    margin-top: auto;
}

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

.control-group label {
    font-size: 0.9em;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--button-bg-secondary);
    border-radius: 12px;
    transition: 0.3s;
}

.toggle-label:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

input:checked + .toggle-label {
    background: var(--color-primary);
}

input:checked + .toggle-label:before {
    transform: translateX(20px);
}

.cropper-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--card-border);
}

.crop-cancel-btn {
    background: var(--button-bg-secondary);
    border: 1px solid var(--button-border-secondary);
    color: var(--color-text-secondary);
}

.crop-confirm-btn {
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    color: white;
}

.crop-cancel-btn:hover,
.crop-confirm-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ==================== 响应式设计 ==================== */

@media (max-width: 768px) {
    .ratio-selector-container {
        grid-template-columns: 1fr;
    }
    
    .ratio-preview {
        margin-top: var(--spacing-sm);
        justify-self: center;
    }
    
    .custom-inputs {
        grid-template-columns: 1fr auto 1fr;
        gap: var(--spacing-xs);
    }
    
    .quick-ratio-buttons {
        justify-content: center;
    }
    
    .ratio-actions {
        justify-content: center;
    }

    .cropper-container {
        width: 95vw;
        height: 90vh;
    }

    .cropper-body {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
    }

    .crop-sidebar {
        width: 100%;
        max-height: 200px;
        overflow-y: auto;
    }
}

@media (max-width: 480px) {
    .custom-inputs {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .dimension-separator {
        display: none;
    }
    
    .quick-ratio-buttons {
        grid-template-columns: repeat(2, 1fr);
        display: grid;
    }

    .cropper-header {
        padding: var(--spacing-md);
    }

    .crop-sidebar {
        padding: var(--spacing-md);
    }

    .cropper-footer {
        padding: var(--spacing-md);
        flex-direction: column;
    }

    .crop-cancel-btn,
    .crop-confirm-btn {
        width: 100%;
    }
}

/* ==================== 动画效果 ==================== */

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
        max-height: 0;
    }
    to {
        opacity: 1;
        transform: translateY(0);
        max-height: 200px;
    }
}

@keyframes ratioPreviewUpdate {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.ratio-preview-shape.updating {
    animation: ratioPreviewUpdate 0.3s ease-out;
}

/* 裁切器显示动画 */
.image-cropper-modal.show .cropper-container {
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -60%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}