/* 全局重置与基础样式 */
:root {
    --primary-color: #f97316;
    /* 橙色 - 参考图 */
    --primary-hover: #ea580c;
    --secondary-color: #64748b;
    --bg-dark: #f8fafc;
    --surface-white: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;

    /* 触摸优化：更大的点击区域与间距 */
    --touch-target-size: 48px;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);

    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body,
html {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    height: 100vh;
    overflow: hidden;
    /* 禁止缩放与双击放大 */
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

/* 布局容器 */
.app-container {
    display: flex;
    height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: 80px;
    background: #ffffff;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0;
    z-index: 10;
}

.sidebar-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.sidebar-logo i {
    font-size: 1.5rem;
}

.nav-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.75rem;
    position: relative;
    transition: all 0.2s;
    cursor: pointer;
}

.nav-item i {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

@media (max-width: 1024px) {
    .three-column-layout {
        /* Optimize for smaller landscape screens */
        grid-template-columns: 180px 1fr 240px;
        gap: 0.5rem;
    }

    .col-dish,
    .col-preview,
    .col-log {
        padding: 0.8rem;
    }

    .dish-card {
        font-size: 1rem;
        padding: 1rem 0.5rem;
    }
}

.nav-item:active,
.nav-item.active {
    color: var(--primary-color);
    background: #fff7ed;
}

.nav-item.active {
    border-right: 3px solid var(--primary-color);
}

/* 主界面 */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.top-header {
    background: white;
    height: 60px;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    flex-shrink: 0;
}

.header-info {
    font-size: 1rem;
    color: var(--text-secondary);
    display: flex;
    gap: 1.5rem;
}

.header-time {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.badge-lunch {
    background: #fef3c7;
    color: #d97706;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* 模式切换 (左上角, 内容区内) */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    overflow: hidden;
    gap: 1rem;
}

.content-header {
    display: flex;
    justify-content: flex-start;
    flex-shrink: 0;
}

.mode-switcher {
    display: inline-flex;
    background: #cbd5e1;
    padding: 4px;
    border-radius: 8px;
}

.mode-btn {
    border: none;
    background: transparent;
    padding: 0.8rem 2rem;
    /* 更大的点击区域 */
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    color: #475569;
    font-size: 1rem;
    transition: all 0.2s;
}

.mode-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    font-weight: 700;
}

/* 三栏布局核心 */
.three-column-layout {
    flex: 1;
    display: grid;
    /* 左侧菜品(220px) | 中间预览(1fr) | 右侧日志(320px) */
    grid-template-columns: 240px 1fr 320px;
    gap: 1rem;
    overflow: hidden;
    background: #f1f5f9;
}

/* 第一栏：菜品 */
.col-dish {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    padding: 1rem;
    overflow: hidden;
}

.panel-header {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.dish-list-vertical {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    overflow-y: auto;
    padding-right: 0.5rem;
}

/* 菜品卡片 - 触控优化 */
.dish-card {
    padding: 1.2rem 1rem;
    /* 增加高度 */
    background: #f8fafc;
    /* 浅灰背景 */
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.dish-card:active {
    transform: scale(0.98);
}

.dish-card.selected {
    background: #fff7ed;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.dish-card.disabled {
    opacity: 0.6;
    background: #e2e8f0;
    color: #64748b;
    cursor: not-allowed;
    position: relative;
}

/* 简化提示文字 */
.dish-card.disabled::after {
    content: '已记录';
    display: block;
    font-size: 0.8rem;
    margin-top: 0.3rem;
    color: #10b981;
    font-weight: normal;
}

/* 分类标题 */
.category-header {
    padding: 0.8rem 0.5rem 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: #64748b;
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 0.5rem;
}

.category-header:not(:first-child) {
    margin-top: 1rem;
}

/* 第二栏：预览与操作 */
.col-preview {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    justify-content: flex-start;
    overflow-y: auto;
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.camera-square-wrapper {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1/1;
    border-radius: 12px;
    overflow: hidden;
    background: black;
    box-shadow: var(--shadow-md);
    position: relative;
    flex-shrink: 0;
}

.camera-container,
#camera-feed {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: none;
}

.camera-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #1e293b;
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.camera-placeholder i {
    font-size: 4rem;
    opacity: 0.5;
    margin-bottom: 1rem;
}

.flash-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    opacity: 0;
    transition: opacity 0.1s;
    pointer-events: none;
    z-index: 10;
}

.control-area {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.selected-info-bar {
    text-align: center;
}

#selected-dish-name {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.status-tag {
    font-size: 1rem;
    color: var(--text-secondary);
    background: #f1f5f9;
    padding: 0.2rem 0.8rem;
    border-radius: 99px;
}

.status-tag.active {
    color: var(--primary-color);
    background: #fff7ed;
}

/* 重量显示与重称按钮 */
.weight-control-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8fafc;
    padding: 1.2rem;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
}

.weight-display-large {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.unit {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-left: 0.25rem;
    font-weight: 500;
}

.btn-icon-text {
    border: 2px solid #cbd5e1;
    background: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-icon-text:active {
    background: #f1f5f9;
    transform: scale(0.98);
}

/* 主操作按钮组 - 大尺寸适配触控 */
.action-buttons-row {
    display: flex;
    gap: 1rem;
    flex-direction: column;
}

.btn-xl {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.3rem;
    border-radius: 12px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-xl:active {
    transform: scale(0.98);
    box-shadow: none;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
}

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

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

/* 第三栏：日志 */
.col-log {
    background: white;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.log-list-container {
    flex: 1;
    overflow-y: auto;
}

.log-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.log-item {
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #f1f5f9;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.log-item-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.log-item-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.log-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.log-value {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1rem;
}

/* 红色删除按钮 - 易点 */
.btn-delete-sm {
    border: 1px solid #fecaca;
    background: #fef2f2;
    color: #ef4444;
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
}

.btn-delete-sm:active {
    background: #fee2e2;
}

/* 工具类 */
.hidden {
    display: none !important;
}

.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /* 居中显示 */
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 1.5rem 2.5rem;
    border-radius: 12px;
    z-index: 1000;
    animation: fadeIn 0.2s;
    font-size: 1.2rem;
    width: max-content;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -40%);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .three-column-layout {
        /* 平板竖屏或小屏时，把日志放到下方，但这需要HTML结构调整。
           鉴于收银机通常横屏，我们优化列宽比例 */
        grid-template-columns: 180px 1fr 240px;
        gap: 0.5rem;
    }

    .col-dish,
    .col-preview,
    .col-log {
        padding: 0.8rem;
    }

    .dish-card {
        font-size: 1rem;
        padding: 1rem 0.5rem;
    }
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
}

.modal-overlay:not(.hidden) {
    display: flex;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    width: 320px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.modal-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 500;
}

.input-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.25rem;
}

.input-control button {
    width: 40px;
    height: 40px;
    border: none;
    background: #f1f5f9;
    border-radius: 6px;
    font-size: 1.25rem;
    color: #1e293b;
    cursor: pointer;
}

.input-control input {
    flex: 1;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    border: none;
    outline: none;
    background: transparent;
}

.input-field {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1.1rem;
    box-sizing: border-box;
    outline: none;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: stretch;
    margin-top: 0.5rem;
}

.modal-actions button {
    flex: 1;
}

.btn-secondary {
    background: #e2e8f0;
    color: #475569;
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
}