/* =====================
   Magic Pixel - Components
   游戏化组件样式
   ===================== */

/* 导入设计系统变量 */
@import url('variables.css');

/* ===== Header Navigation ===== */
.header {
    position: relative;
}

.header__nav {
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.header__back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 0.875rem;
    border-radius: var(--pixel-radius-md);
    transition: all var(--pixel-transition);
    background: #a87250;
    border: 2px solid #8a5d42;
}

.header__back:hover {
    background: #8a5d42;
    color: white;
    transform: translateX(-2px);
}

.header__back svg {
    width: 18px;
    height: 18px;
}

/* ===== Zoom Control ===== */
.zoom-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    font-weight: 500;
}

.zoom-control__label {
    font-size: 0.75rem;
    color: var(--pixel-text-secondary);
}

.zoom-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 80px;
    height: 6px;
    background: var(--pixel-border);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.zoom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--pixel-primary);
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.2);
    transition: all var(--pixel-transition);
}

.zoom-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.zoom-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--pixel-primary);
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.2);
}

.zoom-control__value {
    font-size: 0.75rem;
    color: var(--pixel-text-primary);
    min-width: 36px;
    text-align: right;
    font-weight: 700;
}

/* ===== Preview Container Zoomable ===== */
.preview-container--zoomable {
    max-height: none;
    overflow: auto;
    /* 保持继承父类的 align-items: center，实现内容居中 */
}

.preview-container--zoomable canvas {
    transform-origin: center center;
    transition: transform 0.1s ease;
}

/* ===== Piece Grid Zoomable ===== */
.piece-grid--zoomable {
    max-height: none;
    overflow: auto;
}

/* ===== Upload Zone ===== */
.upload-zone {
    border: 3px dashed var(--pixel-card-border-dashed);
    border-radius: var(--pixel-card-radius);
    padding: 2rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--pixel-transition);
    background: #FFFDF5;
    position: relative;
}

.upload-zone:hover {
    border-color: var(--pixel-primary);
    background: rgba(154, 104, 101, 0.1);
    transform: scale(1.01);
}

.upload-zone--dragover {
    border-color: var(--pixel-primary);
    background: rgba(154, 104, 101, 0.15);
    border-style: solid;
    transform: scale(1.02);
}

.upload-zone--loaded {
    border-color: var(--pixel-primary);
    background: rgba(154, 104, 101, 0.08);
}

.upload-zone__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    color: var(--pixel-text-muted);
    transition: all var(--pixel-transition);
}

.upload-zone:hover .upload-zone__icon {
    color: var(--pixel-primary);
    transform: translateY(-4px);
}

.upload-zone__text {
    font-size: 1rem;
    font-weight: 700;
    color: var(--pixel-text-primary);
    margin-bottom: 0.25rem;
}

.upload-zone__subtext {
    font-size: 0.875rem;
    color: var(--pixel-text-secondary);
    margin-bottom: 0.5rem;
}

.upload-zone__formats {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--pixel-text-muted);
    background: var(--pixel-bg-panel);
    border-radius: var(--pixel-radius-full);
}

/* ===== Control Group ===== */
.control-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.control-group__label {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.control-group__label > span:first-child {
    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;
}

/* ===== Input ===== */
.control-group__input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 3px solid var(--pixel-border);
    border-radius: var(--pixel-radius-lg);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--pixel-text-dark);
    background: #FFFDF9;
    outline: none;
    transition: all var(--pixel-transition);
    box-shadow: inset 2px 2px 4px rgba(180, 160, 130, 0.1);
}

.control-group__input:focus {
    border-color: var(--pixel-primary);
    box-shadow:
        inset 2px 2px 4px rgba(180, 160, 130, 0.1),
        0 0 0 3px rgba(154, 104, 101, 0.2);
}

.control-group__input:disabled {
    background: var(--pixel-bg-panel);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ===== Input with Slider ===== */
.input-with-slider {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-with-slider .control-group__input {
    width: 100%;
}

/* ===== Slider - 游戏化滑块 ===== */
.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--pixel-border);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--pixel-primary);
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.2);
    transition: all var(--pixel-transition);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--pixel-primary);
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.2);
}

/* ===== Slider Limit ===== */
.slider-limit {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.slider-limit__input {
    width: 80px !important;
    text-align: center;
}

/* ===== Radio Group ===== */
.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--pixel-primary);
}

/* ===== Button Group ===== */
.btn-group {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

/* ===== Buttons - 游戏化立体按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 700;
    border-radius: var(--pixel-radius-md);
    border: 3px solid transparent;
    cursor: pointer;
    transition: all var(--pixel-transition);
    position: relative;
    text-decoration: none;
    flex: 1;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn__icon {
    width: 16px;
    height: 16px;
}

/* 主要按钮 - 立体感（暖橙色系） */
.btn--primary {
    background: #C4866A;
    color: #FFFDF5;
    border: 3px solid #A87660;
    box-shadow: var(--pixel-shadow-md);
    transform: translateY(0);
}

.btn--primary:hover:not(:disabled) {
    background: #A06850;
    color: #FFFDF5;
    border: 3px solid #805848;
    transform: translateY(-2px);
    box-shadow: var(--pixel-shadow-lg);
}

.btn--primary:active:not(:disabled) {
    background: #8A5848;
    color: #FFFDF5;
    border: 3px solid #6A4838;
    transform: translateY(2px);
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.15);
}

/* 次要按钮 */
.btn--secondary {
    background: #F0E8DC;
    color: var(--pixel-text-primary);
    border-color: var(--pixel-border);
    box-shadow: var(--pixel-shadow-sm);
}

.btn--secondary:hover:not(:disabled) {
    background: var(--pixel-bg-panel);
    border-color: var(--pixel-primary);
    color: var(--pixel-primary-dark);
}

/* 小按钮 */
.btn--small {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

/* ===== Piece Grid Item - 游戏化卡片 ===== */
.piece-grid__item {
    position: relative;
    aspect-ratio: 1;
    background: var(--pixel-bg-main);
    border-radius: var(--pixel-radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--pixel-transition);
    border: 3px solid transparent;
    box-shadow: var(--pixel-shadow-sm);
}

.piece-grid__item:hover {
    border-color: var(--pixel-primary);
    transform: translateY(-4px) rotate(-1deg);
    box-shadow: var(--pixel-shadow-lg);
}

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

.piece-grid__label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(45, 31, 61, 0.85);
    color: white;
    font-family: var(--font-heading);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    padding: 0.375rem;
    text-align: center;
}

.piece-grid__download {
    position: absolute;
    top: 0.375rem;
    right: 0.375rem;
    width: 28px;
    height: 28px;
    background: var(--pixel-slider-track);
    color: white;
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: all var(--pixel-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    box-shadow: 2px 2px 0 rgba(45, 31, 61, 0.2);
}

.piece-grid__item:hover .piece-grid__download {
    opacity: 1;
}

.piece-grid__download:hover {
    background: var(--pixel-primary-dark);
    transform: scale(1.1);
}

/* ===== Toast ===== */
.toast {
    padding: 0.875rem 1.25rem;
    background: var(--pixel-card-bg);
    border-radius: var(--pixel-card-radius);
    box-shadow: var(--pixel-card-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
    max-width: 350px;
    border: 3px dashed var(--pixel-card-border-dashed);
    position: relative;
}

.toast::before {
    content: '';
    position: absolute;
    inset: 6px;
    border: 2px dashed var(--pixel-card-border-dashed);
    border-radius: calc(var(--pixel-card-radius) - 4px);
    pointer-events: none;
    opacity: 0.5;
}

.toast--success {
    border-left: 5px solid var(--pixel-success);
}

.toast--error {
    border-left: 5px solid var(--pixel-error);
}

.toast--warning {
    border-left: 5px solid var(--pixel-warning);
}

.toast--info {
    border-left: 5px solid var(--pixel-primary);
}

.toast--fade-out {
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.3s ease;
}

.toast__icon {
    font-size: 1.25rem;
}

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

/* ===== Grid Lines ===== */
.grid-line-h,
.grid-line-v {
    position: absolute;
    background: var(--pixel-border-dashed);
}

.grid-line-h {
    height: 2px;
    left: 0;
    right: 0;
}

.grid-line-v {
    width: 2px;
    top: 0;
    bottom: 0;
}

/* ===== Upload/Settings/Export Sections ===== */
.upload-section,
.settings-section,
.export-section {
    padding-bottom: 1rem;
}

.upload-section:last-child,
.settings-section:last-child,
.export-section:last-child {
    padding-bottom: 0;
}

/* ===== Scrollbar - 游戏化滚动条 ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--pixel-bg-main);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--pixel-border);
    border-radius: 5px;
    border: 2px solid var(--pixel-bg-main);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--pixel-slider-track);
}

/* ===== Control Card - 游戏化控制卡片 ===== */
.control-card {
    background: var(--pixel-card-bg);
    border-radius: var(--pixel-card-radius);
    border: 4px solid transparent;
    box-shadow: var(--pixel-card-shadow);
    overflow: hidden;
    position: relative;
    flex: 1;
    min-height: 0;
    width: 100%;
    align-self: stretch;
}

/* 缝线边框效果 - 伪元素实现 */
.control-card::before {
    content: '';
    position: absolute;
    inset: var(--pixel-card-border-offset);
    border: 3px dashed var(--pixel-card-border-dashed);
    border-radius: calc(var(--pixel-card-radius) - var(--pixel-card-border-offset));
    pointer-events: none;
    z-index: 5;
}

.control-card__header {
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.6);
    border-bottom: 3px dashed var(--pixel-card-border-dashed);
    border-radius: var(--pixel-card-radius) var(--pixel-card-radius) 0 0;
}

.control-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 800;
    color: var(--pixel-text-dark);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.control-card__body {
    padding: 1rem 1.25rem;
}

/* ===== Tags & Badges ===== */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--pixel-radius-full);
    background: #FFFDF5;
    color: var(--pixel-text-dark);
    border: 2px dashed var(--pixel-card-border-dashed);
}

.tag--primary {
    background: rgba(154, 104, 101, 0.15);
    color: var(--pixel-primary-dark);
    border-color: rgba(154, 104, 101, 0.4);
}

.tag--success {
    background: rgba(34, 197, 94, 0.1);
    color: #16A34A;
    border-color: rgba(34, 197, 94, 0.3);
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.5rem;
    height: 1.5rem;
    padding: 0 0.5rem;
    font-size: 0.6875rem;
    font-weight: 800;
    border-radius: var(--pixel-radius-full);
    background: var(--pixel-slider-track);
    color: white;
}

/* Coming Soon 徽章 */
.badge--coming {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.375rem 0.625rem;
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    font-family: var(--font-heading);
    color: var(--pixel-accent-dark);
    background: rgba(139, 107, 139, 0.12);
    border: 2px solid rgba(139, 107, 139, 0.3);
    border-radius: var(--pixel-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== Card Section ===== */
.card-section {
    padding: 1.25rem 1.5rem;
}

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

.card-section__title {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 800;
    color: var(--pixel-text-dark);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

/* ===== Upload Zone in Card ===== */
.card-section .upload-zone {
    border-color: var(--pixel-card-border-dashed);
    background: #FFFDF5;
    margin: 0;
}

.card-section .upload-zone:hover {
    border-color: var(--pixel-primary);
    background: rgba(154, 104, 101, 0.1);
}

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

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

/* ===== Slider in Card ===== */
.card-section .slider {
    background: var(--pixel-border);
}

/* ===== 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;
}

/* ===== Button Full Width ===== */
.btn--full {
    width: 100%;
}

/* ===== Mode Nav ===== */
.mode-nav {
    display: flex;
    margin: var(--pixel-card-border-offset);
    margin-bottom: 0;
    border-bottom: 3px dashed var(--pixel-card-border-dashed);
    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;
}

/* ===== 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;
}

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

/* ===== Section Title ===== */
.section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pixel-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

/* ===== Preview Placeholder ===== */
.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    min-height: 200px;
    color: var(--pixel-text-muted);
}

.preview-placeholder svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.preview-placeholder p {
    font-size: 0.875rem;
    font-weight: 500;
}

/* ===== 文字按钮（默认状态）===== */
.btn--text {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--pixel-text-dark);
    background: transparent;
    border: none;
    border-radius: var(--pixel-radius-md);
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn--text:hover:not(:disabled) {
    transform: scale(1.05);
}

.btn--text:active:not(:disabled) {
    transform: scale(0.98);
}

/* ===== 按钮激活/选中状态（药丸形）===== */
.btn--active {
    background: var(--pixel-btn-active-bg) !important;
    color: var(--pixel-btn-active-text) !important;
    border-radius: var(--pixel-radius-full) !important;
    box-shadow: 0 4px 12px rgba(154, 104, 101, 0.4);
}

.btn--active:hover:not(:disabled) {
    background: #7fb385 !important;
    transform: scale(1.05);
}