/*
 * 图片压缩器样式
 * 适配 CLI 主题，渐进式展示
 */

:root {
    --primary-color: #00d26a;
    --primary-hover: #00b85c;
    --primary-glow: rgba(0, 210, 106, 0.3);
    --bg-light: #f5f7fa;
    --bg-card: #ffffff;
    --shadow-light: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.12);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

.compressor-container {
    padding: 0;
    margin: 0;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
}

.compressor-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--cli-bg) 0%, rgba(0, 210, 106, 0.08) 100%);
    border-radius: var(--border-radius);
    border: 1px solid var(--cli-border);
}

.compressor-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--cli-fg);
    margin: 0 0 0.5rem;
    text-shadow: 0 2px 10px var(--primary-glow);
    background: linear-gradient(135deg, var(--cli-fg) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.compressor-header p {
    color: var(--cli-fg-dim);
    margin: 0;
    font-size: 0.9rem;
}

.upload-section {
    display: block;
}

.upload-section.hidden {
    display: none;
}

.editor-section {
    display: none;
}

.editor-section.active {
    display: block;
}

.upload-area {
    border: 2px dashed var(--cli-border);
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition);
    background: linear-gradient(180deg, rgba(0, 210, 106, 0.03) 0%, rgba(0, 210, 106, 0.08) 100%);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, var(--primary-glow) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--primary-glow);
}

.upload-area:hover::before,
.upload-area.dragover::before {
    opacity: 1;
}

.upload-area i {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
    position: relative;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.upload-area .cloud-icon {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

.upload-area h3 {
    margin: 0 0 0.5rem;
    color: var(--cli-fg);
    font-size: 1.2rem;
    font-weight: 600;
}

.upload-area p {
    color: var(--cli-fg-dim);
    margin: 0 0 1rem;
    font-size: 0.85rem;
}

.upload-area .format-hint {
    display: inline-flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.upload-area .format-tag {
    background: rgba(0, 210, 106, 0.15);
    color: var(--primary-color);
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.file-input-wrapper {
    position: relative;
    display: inline-block;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.file-input-button {
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: #fff;
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 30px;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.file-input-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.file-input-button:active {
    transform: translateY(0);
}

#fileInfo {
    margin-top: 1rem;
    color: var(--cli-fg-dim);
    font-size: 0.8rem;
}

.preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .preview-container {
        grid-template-columns: 1fr;
    }
    
    .compressor-header h1 {
        font-size: 1.5rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-area .cloud-icon {
        font-size: 2.5rem;
    }
}

.preview-panel {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.preview-panel:hover {
    box-shadow: var(--shadow-hover);
}

.preview-panel h3 {
    margin: 0 0 0.75rem;
    color: var(--cli-fg-dim);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preview-panel h3::before {
    content: '>';
    color: var(--primary-color);
}

.preview-wrapper {
    position: relative;
    background: linear-gradient(135deg, rgba(0, 210, 106, 0.02) 0%, rgba(0, 210, 106, 0.06) 100%);
    border: 1px solid var(--cli-border);
    border-radius: 8px;
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-preview {
    max-width: 100%;
    max-height: 30vh;
    display: none;
    border-radius: 6px;
}

.image-preview.visible {
    display: block;
}

.preview-placeholder {
    color: var(--cli-fg-dim);
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.preview-placeholder .icon {
    font-size: 2rem;
    opacity: 0.5;
}

.preview-placeholder.hidden {
    display: none;
}

.preview-tooltip {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.85) 100%);
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
    color: var(--cli-fg);
    display: none;
    border-radius: 0 0 8px 8px;
}

.preview-tooltip.visible {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.preview-tooltip span {
    white-space: nowrap;
}

.preview-tooltip .highlight {
    color: var(--primary-color);
    font-weight: bold;
}

.controls-panel {
    margin-bottom: 1rem;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

.controls-panel.collapsed .controls-body {
    display: none;
}

.controls-panel.collapsed .toggle-icon {
    transform: rotate(0deg);
}

.controls-toggle {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--cli-fg);
    padding: 1rem 1.25rem;
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--cli-border);
    transition: var(--transition);
}

.controls-toggle:hover {
    background: rgba(0, 210, 106, 0.05);
}

.toggle-icon {
    transition: transform 0.3s;
    transform: rotate(90deg);
    color: var(--primary-color);
}

.controls-body {
    padding: 1.25rem;
    background: linear-gradient(180deg, rgba(0, 210, 106, 0.02) 0%, rgba(0, 210, 106, 0.06) 100%);
}

.control-group {
    margin-bottom: 1.25rem;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.6rem;
    font-size: 0.85rem;
    color: var(--cli-fg);
}

.control-group label .hint {
    color: var(--cli-fg-dim);
    font-size: 0.75rem;
    font-weight: normal;
}

.control-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--cli-border);
    appearance: none;
    cursor: pointer;
    border-radius: 3px;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 0 2px 8px var(--primary-glow);
    transition: var(--transition);
}

.control-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-value {
    color: var(--primary-color);
    font-weight: bold;
    min-width: 4rem;
    text-align: right;
    font-size: 0.9rem;
}

.action-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    border-radius: 30px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px var(--primary-glow);
    color: #fff;
}

.btn-primary.hidden {
    display: none;
}

.btn-download {
    display: none;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
    font-weight: bold;
}

.btn-download.visible {
    display: inline-flex;
}

.btn-download:hover {
    box-shadow: 0 6px 20px var(--primary-glow);
    color: #fff;
}

.btn-ghost {
    background: transparent;
    color: var(--cli-fg-dim);
    border: 2px solid var(--cli-border);
}

.btn-ghost:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-glow);
}

.message {
    text-align: center;
    padding: 0.8rem 1.25rem;
    margin-bottom: 1rem;
    display: none;
    font-size: 0.85rem;
    border-radius: var(--border-radius);
    border: none;
    position: relative;
    padding-left: 2.5rem;
}

.message::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.message::after {
    content: none;
}

.message-error {
    background: rgba(255, 82, 82, 0.1);
    color: #ff5252;
    border: 1px solid rgba(255, 82, 82, 0.3);
}

.message-error::before {
    background: #ff5252;
}

.message-success {
    background: rgba(0, 210, 106, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(0, 210, 106, 0.3);
}

.message-success::before {
    background: var(--primary-color);
}

.message-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.message-warning::before {
    background: #ffc107;
}

.message-info {
    background: rgba(33, 150, 243, 0.1);
    color: #2196f3;
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.message-info::before {
    background: #2196f3;
}

.progress-container {
    display: none;
    margin: 1rem 0;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow-light);
}

.progress-container.active {
    display: block;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: var(--cli-fg);
}

.progress-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.progress-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--cli-border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.progress-bar {
    height: 8px;
    background: var(--cli-border);
    overflow: hidden;
    border-radius: 4px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    width: 0%;
    transition: width 0.3s ease-out;
    border-radius: 4px;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-overlay.active {
    display: flex;
}

.loading-content {
    text-align: center;
    color: var(--cli-fg);
}

.loading-spinner-large {
    width: 50px;
    height: 50px;
    border: 3px solid var(--cli-border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

.loading-text {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.loading-detail {
    font-size: 0.8rem;
    color: var(--cli-fg-dim);
}

@media (max-width: 480px) {
    .action-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .controls-body {
        padding: 1rem;
    }
}