:root {
    --lab-bg: linear-gradient(135deg, #0a1628 0%, #122542 50%, #0d1f35 100%);
    --panel-bg: rgba(255, 255, 255, 0.06);
    --panel-border: rgba(255, 255, 255, 0.12);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --accent: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --coral: #ff6b6b;
    --success: #4ade80;
    --warning: #fbbf24;
}

.lab-section {
    min-height: calc(100vh - 60px - 60px);
    padding: 30px 20px;
    background: var(--lab-bg);
}

.lab-header {
    text-align: center;
    margin-bottom: 30px;
}

.lab-header h1 {
    font-size: 2.2rem;
    color: var(--text-primary);
    margin-bottom: 8px;
    text-shadow: 0 0 20px var(--accent-glow);
}

.lab-header p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 12px;
}

.my-recipes-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    padding: 8px 16px;
    font-size: 0.85rem;
}

.lab-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
}

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.panel h2 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--panel-border);
}

/* 左侧边栏 */
.lab-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.tab-btn {
    padding: 8px 14px;
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    background: rgba(0, 212, 255, 0.15);
    color: var(--accent);
}

.tab-btn.active {
    background: var(--accent);
    color: #0a1628;
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.ingredient-shelf {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-height: 320px;
    overflow-y: auto;
    padding-right: 4px;
}

.ingredient-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ingredient-card:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
}

.ingredient-color {
    width: 8px;
    height: 36px;
    border-radius: 4px;
    flex-shrink: 0;
}

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

.ingredient-name {
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ingredient-en {
    color: var(--text-secondary);
    font-size: 0.7rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 当前配方 */
.recipe-list {
    min-height: 120px;
    margin-bottom: 16px;
}

.recipe-empty {
    color: var(--text-secondary);
    text-align: center;
    padding: 40px 20px;
    font-size: 0.9rem;
}

.recipe-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid var(--panel-border);
}

.recipe-color {
    width: 6px;
    height: 30px;
    border-radius: 3px;
}

.recipe-info {
    flex: 1;
}

.recipe-name {
    color: var(--text-primary);
    font-size: 0.9rem;
}

.recipe-amount {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.recipe-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.amount-btn {
    width: 24px;
    height: 24px;
    border: 1px solid var(--panel-border);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.amount-btn:hover {
    background: var(--accent);
    color: #0a1628;
}

.remove-btn {
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 4px;
    background: rgba(255, 107, 107, 0.2);
    color: var(--coral);
    cursor: pointer;
    margin-left: 4px;
}

.remove-btn:hover {
    background: rgba(255, 107, 107, 0.4);
}

.recipe-actions {
    display: flex;
    gap: 10px;
}

.recipe-actions .btn {
    flex: 1;
    padding: 10px;
    font-size: 0.85rem;
}

/* 右侧主体 */
.lab-main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.canvas-panel {
    min-height: 520px;
    display: flex;
    flex-direction: column;
}

.canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.info-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.info-badge {
    padding: 6px 12px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 16px;
    color: var(--accent);
    font-size: 0.8rem;
}

.canvas-toggles {
    display: flex;
    gap: 8px;
}

.glass-selector {
    display: flex;
    align-items: center;
    gap: 8px;
}

.glass-selector label {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.glass-selector select {
    padding: 8px 12px;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    min-width: 120px;
}

.glass-selector select:focus {
    outline: none;
    border-color: var(--accent);
}

.toggle-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.toggle-btn:hover,
.toggle-btn.active {
    background: var(--accent);
    color: #0a1628;
    border-color: var(--accent);
}

.canvas-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

#glassSvg {
    width: 100%;
    height: 100%;
    max-width: 320px;
    max-height: 420px;
}

.canvas-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.control-btn {
    padding: 10px 18px;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.control-btn:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--accent);
}

.control-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.speed-controls {
    display: flex;
    gap: 4px;
}

.speed-btn {
    padding: 8px 12px;
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
}

.speed-btn.active,
.speed-btn:hover {
    background: var(--accent);
    color: #0a1628;
    border-color: var(--accent);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: 16px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--accent);
    border-radius: 2px;
    transition: width 0.1s linear;
}

.step-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 12px;
    min-height: 24px;
}

/* 统计面板 */
.stats-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.flavor-radar {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.flavor-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.flavor-label {
    width: 40px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.flavor-bar {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.flavor-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #4ade80);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.warning-area {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.warning-item {
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
}

.warning-item.warn {
    background: rgba(251, 191, 36, 0.15);
    border: 1px solid rgba(251, 191, 36, 0.3);
    color: var(--warning);
}

.warning-item.info {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--accent);
}

.save-area {
    display: flex;
    flex-direction: column;
    gap: 12px;
    justify-content: center;
}

.recipe-name-input {
    padding: 12px;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.recipe-name-input::placeholder {
    color: var(--text-secondary);
}

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

    .stats-panel {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .lab-header h1 {
        font-size: 1.6rem;
    }

    .category-tabs {
        gap: 6px;
    }

    .tab-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .ingredient-shelf {
        grid-template-columns: 1fr;
    }

    .canvas-header {
        flex-direction: column;
        align-items: flex-start;
    }
}