/* ========================================
   ilovepdf 风格的 PPT 压缩组件
   ======================================== */

/* 组件容器 */
.ppt-compressor {
    max-width: 800px;
    margin: 60px auto;
    padding: 0 20px;
}

/* ========================================
   上传区域
   ======================================== */
.upload-section {
    width: 100%;
}

.upload-area {
    background: #ffffff;
    border: 3px dashed #e5e7eb;
    border-radius: 16px;
    padding: 80px 40px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: #a31e22;
    background: #fef2f2;
}

.upload-area.drag-over {
    border-color: #a31e22;
    background: #fef2f2;
    transform: scale(1.02);
}

.upload-title {
    font-size: 28px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 16px 0;
}

.btn-upload {
    background: linear-gradient(135deg, #a31e22 0%, #d32f2f 100%);
    color: white;
    border: none;
    padding: 16px 48px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 24px 0;
    box-shadow: 0 4px 15px rgba(163, 30, 34, 0.3);
}

.btn-upload:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(163, 30, 34, 0.4);
}

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

.upload-hint {
    color: #6b7280;
    font-size: 14px;
    margin: 16px 0 0 0;
}

/* ========================================
   文件预览区域
   ======================================== */
.file-preview-section {
    width: 100%;
}

.file-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    padding-bottom: 20px; /* 默认底部内边距 */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    position: relative;
    transition: all 0.3s ease;
    min-height: 80px; /* 最小高度 */
}

/* 当有进度条时增加底部空间 */
.file-card.has-progress {
    padding-bottom: 80px;
}

.file-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.file-card-icon {
    color: #a31e22;
    flex-shrink: 0;
}

.file-card-icon svg {
    width: 40px;
    height: 40px;
}

.file-card-info {
    flex: 1;
    min-width: 0;
}

.file-card-name {
    font-size: 16px;
    font-weight: 600;
    color: #111827;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-card-size {
    font-size: 14px;
    color: #6b7280;
}

.file-card-stats {
    font-size: 14px;
    color: #6b7280;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.file-card-stats .arrow {
    color: #9ca3af;
}

.file-card-stats .compressed {
    color: #059669;
    font-weight: 600;
}

.file-card-stats .saved {
    color: #059669;
    font-weight: 600;
}

.file-card-remove {
    background: transparent;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.file-card-remove:hover {
    background: #fee2e2;
    color: #ef4444;
}

.file-card-remove svg {
    display: block;
}

/* 文件卡片进度条 */
.file-card-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 20px 16px;
    background: #f9fafb;
    border-top: 1px solid #e5e7eb;
    border-radius: 0 0 12px 12px;
    box-sizing: border-box;
}

.file-card-progress-bar {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.file-card-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #a31e22 0%, #d32f2f 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0; /* 初始宽度 */
}

.file-card-progress-text {
    font-size: 13px;
    color: #6b7280;
    text-align: center;
    font-weight: 500;
}

/* 压缩中动画效果 */
.file-card-progress-text.compressing-animation {
    color: #a31e22;
    font-weight: 600;
    animation: slideHorizontal 1.5s ease-in-out infinite;
}

/* 压缩选项 */
.compress-options {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 24px;
}

.option-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
}

.option-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: #a31e22;
}

.option-content {
    flex: 1;
}

.option-title {
    font-size: 15px;
    font-weight: 600;
    color: #111827;
    margin-bottom: 4px;
}

.option-desc {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

/* ========================================
   底部操作按钮
   ======================================== */
.bottom-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-compress {
    background: linear-gradient(135deg, #a31e22 0%, #d32f2f 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(163, 30, 34, 0.3);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-compress:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(163, 30, 34, 0.4);
}

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

.btn-compress:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.btn-compress:disabled:hover {
    transform: none;
    box-shadow: 0 4px 15px rgba(163, 30, 34, 0.3);
}

/* 按钮加载动画 */
.btn-compress .spinner {
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.btn-download {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(5, 150, 105, 0.4);
}

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

.btn-another {
    background: white;
    color: #6b7280;
    border: 2px solid #e5e7eb;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-another:hover {
    border-color: #a31e22;
    color: #a31e22;
    background: #fef2f2;
}

/* ========================================
   结果区域
   ======================================== */
.result-section {
    text-align: center;
    width: 100%;
}

.result-success-icon {
    margin: 0 auto 24px;
    animation: scaleIn 0.5s ease;
}

.result-error-icon {
    margin: 0 auto 24px;
    animation: shake 0.5s ease;
}

.result-title {
    font-size: 28px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 32px 0;
}

.file-card.result {
    margin-bottom: 32px;
}

.file-card-download {
    background: transparent;
    color: #6b7280;
    border: none;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.file-card-download:hover {
    color: #a31e22;
    background: #fee2e2;
}

.file-card-download svg {
    display: block;
}

/* ========================================
   错误区域
   ======================================== */
.error-section {
    text-align: center;
    width: 100%;
}

.error-title {
    font-size: 24px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 16px 0;
}

.error-message {
    color: #6b7280;
    font-size: 15px;
    margin: 0 0 32px 0;
    line-height: 1.6;
}

/* ========================================
   动画
   ======================================== */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes scaleIn {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-10px);
    }
    75% {
        transform: translateX(10px);
    }
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 768px) {
    .ppt-compressor {
        margin: 30px auto;
    }
    
    .upload-area {
        padding: 60px 24px;
    }
    
    .upload-title {
        font-size: 24px;
    }
    
    .btn-upload {
        padding: 14px 36px;
        font-size: 16px;
    }
    
    .file-card {
        padding: 16px;
        padding-bottom: 16px;
        gap: 12px;
    }
    
    .file-card.has-progress {
        padding-bottom: 70px;
    }
    
    .file-card-name {
        font-size: 15px;
    }
    
    .file-card-size,
    .file-card-stats {
        font-size: 13px;
    }
    
    .compress-options {
        padding: 16px;
    }
    
    .option-title {
        font-size: 14px;
    }
    
    .option-desc {
        font-size: 12px;
    }
    
    .btn-compress,
    .btn-download,
    .btn-another {
        padding: 14px 24px;
        font-size: 15px;
    }
    
    
    .result-title,
    .error-title {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .upload-area {
        padding: 40px 20px;
    }
    
    .upload-title {
        font-size: 20px;
    }
    
    .file-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px;
        padding-bottom: 12px;
    }
    
    .file-card.has-progress {
        padding-bottom: 120px;
    }
    
    .file-card-remove {
        position: absolute;
        top: 12px;
        right: 12px;
    }
    
    .file-card-progress {
        padding: 10px 16px 12px;
    }
    
}

/* ========================================
   压缩等级选项
   ======================================== */
.option-title-main {
    font-size: 16px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 16px;
}

.level-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 8px;
    border: 2px solid transparent;
}

.level-option:hover {
    background: #f9fafb;
}

.level-option:has(input:checked) {
    background: #fef2f2;
    border-color: #a31e22;
}

.level-option input[type="radio"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: #a31e22;
}

.level-content {
    flex: 1;
}

.level-header {
    display: flex;
    align-items: center;
    gap: 8px;
}

.level-name {
    font-size: 15px;
    font-weight: 600;
    color: #111827;
}

.level-badge {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.level-badge.recommended {
    background: linear-gradient(135deg, #a31e22 0%, #d32f2f 100%);
    color: white;
}

.level-info-btn {
    background: transparent;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 2px;
    margin-left: auto;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.level-info-btn:hover {
    color: #a31e22;
    transform: scale(1.1);
}

/* 纯CSS提示框 */
.level-info-btn::after {
    content: attr(data-tip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px) scale(0.95);
    background: #111827;
    color: white;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.5;
    white-space: normal;
    width: max-content;
    max-width: 280px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    pointer-events: none;
    z-index: 10000;
    
    /* 初始状态：隐藏 */
    opacity: 0;
    visibility: hidden;
    
    /* 过渡动画 */
    transition: opacity 0.2s ease, 
                transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
                visibility 0.2s ease;
}

/* 箭头 */
.level-info-btn::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid #111827;
    pointer-events: none;
    z-index: 10001;
    
    /* 初始状态：隐藏 */
    opacity: 0;
    visibility: hidden;
    
    /* 过渡动画 */
    transition: opacity 0.2s ease,
                transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
                visibility 0.2s ease;
}

/* 悬停时显示提示框和箭头 */
.level-info-btn:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0) scale(1);
    transition-delay: 0.2s;
}

.level-info-btn:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    transition-delay: 0.2s;
}

/* 左右排列的选项容器 */
.level-options-horizontal {
    display: flex;
    gap: 12px;
}

.level-options-horizontal .level-option {
    flex: 1;
    margin-bottom: 0;
}

/* 选项分隔线 */
.options-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, #e5e7eb, transparent);
    margin: 20px 0;
}

/* 响应式 - 压缩等级选项 */
@media (max-width: 768px) {
    .option-title-main {
        font-size: 15px;
    }
    
    .level-option {
        padding: 10px;
    }
    
    .level-name {
        font-size: 14px;
    }
    
    .level-badge {
        font-size: 10px;
        padding: 2px 6px;
    }
    
    /* 移动端改为纵向排列 */
    .level-options-horizontal {
        flex-direction: column;
    }
    
    .level-options-horizontal .level-option {
        margin-bottom: 8px;
    }
    
    .level-options-horizontal .level-option:last-child {
        margin-bottom: 0;
    }
    
    /* 移动端分隔线间距 */
    .options-divider {
        margin: 16px 0;
    }
    
    /* 移动端提示框优化 - 防止超出屏幕 */
    .level-info-btn::after {
        /* 调整定位方式，使用固定宽度和边距限制 */
        left: auto;
        right: 0;
        transform: translateY(-8px) scale(0.95);
        max-width: calc(100vw - 40px);
        width: 220px;
        font-size: 11px;
        padding: 8px 10px;
        line-height: 1.4;
    }
    
    /* 箭头位置也需要调整 */
    .level-info-btn::before {
        left: auto;
        right: 10px;
        transform: translateY(-8px);
    }
    
    /* 悬停时的状态调整 */
    .level-info-btn:hover::after {
        transform: translateY(0) scale(1);
    }
    
    .level-info-btn:hover::before {
        transform: translateY(0);
    }
}

/* 极小屏幕优化 */
@media (max-width: 480px) {
    .level-info-btn::after {
        width: 180px;
        max-width: calc(100vw - 30px);
        font-size: 10px;
        padding: 6px 8px;
    }
    
    .level-info-btn::before {
        right: 8px;
    }
}