/* 工具集页面样式 - 延续 NavHub 设计风格 */

.tools-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 40px 60px;
    position: relative;
    z-index: 2;
}

.tools-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 30px;
}

.panel-card h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-black);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-separator);
}

.panel-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-black);
    margin: 20px 0 16px 0;
}

/* 上传区域 */
.upload-zone {
    border: 3px dashed var(--cyan-light);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    background-color: var(--bg-mint);
    transition: var(--transition);
    cursor: pointer;
}

.upload-zone:hover {
    border-color: var(--cyan-deep);
    background-color: rgba(165, 216, 221, 0.1);
}

.upload-zone.dragover {
    border-color: var(--cyan-deep);
    background-color: rgba(165, 216, 221, 0.2);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.upload-hint {
    font-size: 13px;
    color: var(--text-black);
    opacity: 0.6;
    margin-top: 8px;
}

.upload-btn {
    margin-top: 20px;
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--cyan-light), var(--cyan-deep));
    border: 2px solid var(--text-black);
    border-radius: 8px;
    color: var(--text-black);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 控制区域 */
.controls-section {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 2px solid var(--border-separator);
    animation: fadeIn 0.3s ease;
}

.control-group {
    margin-bottom: 20px;
}

.control-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: 8px;
}

.control-select {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--bg-mint);
    border: 2px solid var(--text-black);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-black);
    cursor: pointer;
    transition: var(--transition);
}

.control-select:hover,
.control-select:focus {
    border-color: var(--purple-deep);
    outline: none;
}

.control-slider {
    width: 100%;
    height: 6px;
    background: var(--bg-mint);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.control-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--purple-deep);
    border: 2px solid var(--text-black);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.control-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.control-checkbox {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    vertical-align: middle;
    cursor: pointer;
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.apply-btn,
.reset-btn {
    flex: 1;
    padding: 12px 24px;
    border: 2px solid var(--text-black);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.apply-btn {
    background: linear-gradient(135deg, var(--purple-light), var(--purple-deep));
    color: var(--text-black);
}

.apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.reset-btn {
    background-color: var(--card-white);
    color: var(--text-black);
}

.reset-btn:hover {
    background-color: var(--bg-mint);
}

/* 预览区域 */
.preview-container {
    min-height: 500px;
    background-color: var(--bg-mint);
    border: 2px solid var(--border-separator);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.preview-placeholder {
    text-align: center;
    color: var(--text-black);
    opacity: 0.5;
}

.placeholder-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

#previewCanvas {
    max-width: 100%;
    max-height: 500px;
    display: block;
    margin: 0 auto;
}

.preview-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.download-btn,
.new-btn {
    flex: 1;
    padding: 14px 24px;
    border: 2px solid var(--text-black);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.download-btn {
    background: linear-gradient(135deg, var(--yellow-light), var(--yellow-deep));
}

.new-btn {
    background-color: var(--card-white);
}

.download-btn:hover,
.new-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式 */
@media (max-width: 1024px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tools-content {
        padding: 90px 20px 40px;
    }
    
    .button-group,
    .preview-actions {
        flex-direction: column;
    }
}