/* =====================
   Magic Cutting - Styles
   序列帧标准化重组功能样式
   ===================== */

/* ===== 缝线边框效果 ===== */
.control-card::before {
    inset: 8px;
    border-radius: calc(var(--pixel-card-radius, 16px) - 8px);
    z-index: 10;
}

/* ===== Card Section ===== */
.card-section {
    padding: 1.25rem 1.5rem;
    border-bottom: none;
}

.card-section:last-child {
    border-bottom: none;
}

.card-section__title {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--pixel-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 1rem;
}

/* ===== Collapsible Card Section ===== */

/* 可折叠区块容器 */
.card-section--collapsible {
    overflow: hidden;
}

/* 可点击的标题区域 */
.card-section__title--collapsible {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0;
    cursor: pointer;
    user-select: none;
    padding: 0.25rem 0;
    transition: color var(--pixel-transition);
}

.card-section__title--collapsible:hover {
    color: var(--pixel-primary);
}

/* 实心等腰三角形图标 */
.card-section__toggle-icon {
    width: 0;
    height: 0;
    border-left: 6px solid var(--pixel-text-primary);
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    transition: transform var(--pixel-transition),
                border-left-color var(--pixel-transition);
    flex-shrink: 0;
    transform: rotate(90deg);  /* 默认展开状态：垂直向下 */
}

.card-section__title--collapsible:hover .card-section__toggle-icon {
    border-left-color: var(--pixel-primary);
}

/* 折叠状态：三角形指向右侧 */
.card-section--collapsed .card-section__toggle-icon {
    transform: rotate(0deg);
}

/* 标题文字 */
.card-section__title-text {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* 可折叠内容区域 */
.card-section__content {
    overflow: hidden;
    transition: max-height 0.3s ease-out,
                opacity var(--pixel-transition) ease-out;
    max-height: 500px;
    opacity: 1;
    margin-top: 1rem;
}

/* 折叠状态下的内容 */
.card-section--collapsed .card-section__content {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}

/* ===== Upload Zone in Card ===== */
.card-section .upload-zone {
    border-color: var(--pixel-border);
    background: #FFFDF5;
}

.card-section .upload-zone:hover {
    border-color: var(--pixel-primary);
    background: rgba(255, 107, 53, 0.02);
}

/* ===== Control Group in Card ===== */
.card-section .control-group__input {
    background: #FFFDF5;
    border-color: var(--pixel-border);
}

.card-section .control-group__input:focus {
    border-color: var(--pixel-primary);
}

/* ===== Radio Group in Card ===== */
.card-section .radio-label input[type="radio"] {
    accent-color: var(--pixel-primary);
}

/* ===== Button Group in Card ===== */
.card-section .btn-group {
    margin-top: 1rem;
}

/* ===== Mode Nav ===== */
.mode-nav {
    display: flex;
    margin: var(--pixel-card-border-offset);
    margin-bottom: 0;
    border-radius: calc(var(--pixel-card-radius) - var(--pixel-card-border-offset)) calc(var(--pixel-card-radius) - var(--pixel-card-border-offset)) 0 0;
    overflow: hidden;
}

.mode-nav__btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all var(--pixel-transition);
    color: var(--pixel-text-secondary);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 700;
    position: relative;
    margin-bottom: -3px;
}

.mode-nav__btn:hover {
    color: var(--pixel-primary);
    background: rgba(154, 104, 101, 0.1);
}

.mode-nav__btn svg {
    width: 18px;
    height: 18px;
}

.mode-nav__btn--active {
    color: var(--pixel-primary);
    background: #F8EAD7;
}

/* ===== Frame Count ===== */
.frame-count {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: #FFFDF5;
    border-radius: var(--pixel-radius-sm);
    font-size: 0.875rem;
}

.frame-count strong {
    color: var(--pixel-primary);
    font-size: 1rem;
}

.btn-clear {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    background: transparent;
    border: 2px solid var(--pixel-border);
    border-radius: var(--pixel-radius-sm);
    font-size: 0.75rem;
    color: var(--pixel-text-secondary);
    cursor: pointer;
    transition: all var(--pixel-transition);
    margin-left: auto;
}

.btn-clear:hover {
    border-color: var(--pixel-error);
    color: var(--pixel-error);
}

/* ===== Checkbox Wrapper ===== */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

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

.checkbox-wrapper span {
    font-size: 0.875rem;
}

/* ===== Frame Nav ===== */
.frame-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.frame-nav__current {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pixel-text-secondary);
}

/* ===== Pivot Selector ===== */
.pivot-selector {
    display: flex;
    gap: 0.5rem;
}

.pivot-btn {
    width: 52px;
    height: 52px;
    background: #FFFDF5;
    border: 3px solid var(--pixel-border);
    border-radius: var(--pixel-radius-md);
    cursor: pointer;
    transition: all var(--pixel-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

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

.pivot-btn--active {
    background: rgba(255, 107, 53, 0.1);
    border-color: var(--pixel-primary);
}

.pivot-btn svg {
    width: 28px;
    height: 28px;
    color: var(--pixel-text-secondary);
}

.pivot-btn--active svg {
    color: var(--pixel-primary);
}

/* ===== Size Display ===== */
.size-display {
    padding: 0.5rem 0.75rem;
    background: #FFFDF5;
    border-radius: var(--pixel-radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pixel-text-secondary);
    border: 2px solid var(--pixel-border);
    text-align: center;
}

/* ===== Output Size Info ===== */
.output-size-info {
    padding: 0.5rem 0.75rem;
    background: #FFFDF5;
    border-radius: var(--pixel-radius-sm);
    font-size: 0.875rem;
    color: var(--pixel-text-secondary);
    margin-top: 0.5rem;
}

/* ===== Preview Row for Cutting Page ===== */
.preview-row-cutting {
    display: flex;
    gap: 1rem;
    height: clamp(350px, 40vh, 600px);
}

.preview-row-cutting .preview-section {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.preview-row-cutting .preview-section .align-grid,
.preview-row-cutting .preview-section .preview-container {
    flex: 1;
    overflow-y: auto;
}

/* ===== Frame List ===== */
.frame-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.75rem;
    overflow-y: auto;
    padding: 0.25rem;
}

.frame-list__item {
    position: relative;
    aspect-ratio: 1;
    background: var(--pixel-bg-main);
    border-radius: var(--pixel-radius-md);
    border: 3px solid var(--pixel-border);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--pixel-transition);
}

.frame-list__item:hover {
    border-color: var(--pixel-primary);
    transform: translateY(-2px);
}

.frame-list__item--active {
    border-color: var(--pixel-primary);
    box-shadow: var(--pixel-shadow-md);
}

.frame-list__item--detected {
    border-color: var(--pixel-success);
}

.frame-list__item canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.frame-list__num {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(45, 31, 61, 0.85);
    color: white;
    font-size: 0.625rem;
    text-align: center;
    padding: 0.125rem;
}

.frame-list__status {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--pixel-border);
}

.frame-list__status--detected {
    background: var(--pixel-success);
}

/* ===== Slice Info ===== */
.slice-info {
    font-size: 0.75rem;
    color: var(--pixel-text-secondary);
    margin-left: auto;
    margin-right: 1rem;
}

/* ===== Align Grid ===== */
.align-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.375rem;
    overflow-y: auto;
    padding: 0.75rem;
    flex: 1;
    background: var(--pixel-bg-main);
    border: 3px dashed var(--pixel-border-dashed);
    border-radius: var(--pixel-radius-md);
}

.align-grid .preview-placeholder {
    width: 100%;
    height: 100%;
    min-width: 120px;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    grid-column: 1 / -1;
    grid-row: 1 / -1;
}

.align-grid__item {
    position: relative;
    aspect-ratio: 1;
    background: var(--pixel-bg-main);
    border-radius: var(--pixel-radius-md);
    border: 2px dashed var(--pixel-border-dashed);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.align-grid__item canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.align-grid__num {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(45, 31, 61, 0.85);
    color: white;
    font-size: 0.625rem;
    text-align: center;
    padding: 0.125rem;
}

/* ===== Alignment Info Tags ===== */
.alignment-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tag {
    padding: 0.25rem 0.5rem;
    background: #FFFDF5;
    border-radius: var(--pixel-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--pixel-text-secondary);
    border: 2px solid var(--pixel-border);
}

.tag--primary {
    background: rgba(255, 107, 53, 0.1);
    border-color: var(--pixel-primary);
    color: var(--pixel-primary);
}

/* ===== Pivot Dropdown ===== */
.pivot-dropdown {
    position: relative;
}

.pivot-dropdown__btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    cursor: pointer;
    transition: all var(--pixel-transition);
}

.pivot-dropdown__btn:hover {
    background: rgba(255, 107, 53, 0.2);
}

.pivot-dropdown__btn svg {
    width: 14px;
    height: 14px;
    transition: transform var(--pixel-transition);
}

.pivot-dropdown--open .pivot-dropdown__btn svg {
    transform: rotate(180deg);
}

.pivot-dropdown__menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.5rem;
    background: #FFFDF5;
    border: 2px solid var(--pixel-border);
    border-radius: var(--pixel-radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 180px;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--pixel-transition);
}

.pivot-dropdown--open .pivot-dropdown__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.pivot-dropdown__item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background var(--pixel-transition);
}

.pivot-dropdown__item:hover {
    background: var(--pixel-bg-main);
}

.pivot-dropdown__item--active {
    background: rgba(255, 107, 53, 0.1);
}

.pivot-dropdown__item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--pixel-text-secondary);
}

.pivot-dropdown__item--active svg {
    color: var(--pixel-primary);
}

.pivot-dropdown__item span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pixel-text-primary);
}

.pivot-dropdown__item small {
    display: block;
    font-size: 0.625rem;
    color: var(--pixel-text-secondary);
    margin-left: auto;
    flex-shrink: 0;
}

/* ===== Frame List Count ===== */
.frame-list-count {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pixel-text-secondary);
    margin-left: auto;
    margin-right: 1rem;
}

/* ===== Slice Canvas Cursor ===== */
#sliceCanvas {
    cursor: crosshair;
}

#sliceCanvas.drawing {
    cursor: crosshair;
}

#sliceCanvas.moving {
    cursor: move;
}

/* ===== Selection Box Styles (rendered on canvas) ===== */
/* These are applied dynamically via JS */

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
    .preview-row-cutting {
        flex-direction: column;
        height: auto;
    }

    .preview-row-cutting .preview-section {
        height: 300px;
    }

    .pivot-btn {
        width: 44px;
        height: 44px;
    }

    .pivot-btn svg {
        width: 22px;
        height: 22px;
    }
}

/* ===== 大屏幕响应式调整 ===== */
/* 1440p显示器 (1440px - 2559px) */
@media (min-width: 1440px) {
    .preview-row-cutting {
        height: clamp(400px, 45vh, 550px);
    }
}

/* 2K显示器 (2560px - 3839px) */
@media (min-width: 2560px) {
    .preview-row-cutting {
        height: clamp(500px, 50vh, 800px);
    }
}

/* 4K显示器 (3840px及以上) */
@media (min-width: 3840px) {
    .preview-row-cutting {
        height: clamp(600px, 55vh, 1000px);
    }
}

/* ===== Source Info ===== */
.source-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: #FFFDF5;
    border-radius: var(--pixel-radius-sm);
    font-size: 0.875rem;
}

.source-info span {
    color: var(--pixel-text-primary);
    font-weight: 500;
}

/* ===== Hint Text ===== */
.hint-text {
    font-size: 0.75rem;
    color: var(--pixel-text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

/* ===== Block Count ===== */
.block-count {
    font-size: 0.75rem;
    color: var(--pixel-text-secondary);
    font-weight: 500;
    margin-left: 0.5rem;
}

/* ===== Align Grid Item with Actions ===== */
.align-grid__item {
    position: relative;
    aspect-ratio: 1;
    background: #FFFDF5;
    border-radius: var(--pixel-radius-md);
    border: 3px solid transparent;
    overflow: hidden;
    cursor: grab;
    transition: all var(--pixel-transition);
    box-shadow: var(--pixel-shadow-sm);
}

.align-grid__item:hover {
    border-color: var(--pixel-primary);
    transform: translateY(-2px);
    box-shadow: var(--pixel-shadow-md);
}

.align-grid__item canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.align-grid__num {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(45, 31, 61, 0.85);
    color: white;
    font-size: 0.625rem;
    text-align: center;
    padding: 0.125rem;
}

/* 拖拽状态 */
.align-grid__item.dragging {
    opacity: 0.5;
    border-color: var(--pixel-primary);
    box-shadow: var(--pixel-shadow-lg);
}

.align-grid__item.drag-over {
    border-color: #D4714A;
    background: rgba(212, 113, 74, 0.1);
}

/* 操作按钮组 - hover 显示 */
.align-grid__actions {
    position: absolute;
    top: 4px;
    right: 4px;
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--pixel-transition);
    z-index: 10;
}

.align-grid__item:hover .align-grid__actions {
    opacity: 1;
}

/* 删除按钮 */
.align-grid__action--delete {
    background: var(--pixel-error);
    color: white;
    width: 24px;
    height: 24px;
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.2);
    transition: all var(--pixel-transition);
}

.align-grid__action--delete:hover {
    background: #dc2626;
    transform: scale(1.1);
}

.align-grid__action--delete svg {
    width: 12px;
    height: 12px;
}

/* 拖拽手柄 */
.align-grid__action--move {
    background: var(--pixel-primary);
    color: white;
    width: 24px;
    height: 24px;
    border: 2px solid white;
    border-radius: 50%;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.2);
    transition: all var(--pixel-transition);
}

.align-grid__action--move:hover {
    background: var(--pixel-primary-dark);
}

.align-grid__action--move:active {
    cursor: grabbing;
}

.align-grid__action--move svg {
    width: 12px;
    height: 12px;
}

/* ===== Extend Inputs ===== */
.extend-inputs {
    display: flex;
    gap: 0.75rem;
}

.extend-inputs__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.extend-inputs__item > span {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--pixel-text-secondary);
}

.extend-inputs__item .control-group__input {
    text-align: center;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .extend-inputs {
        flex-direction: column;
        gap: 0.5rem;
    }
}