/* Baby Tracker - Custom Design System */
/* 基于移动端婴儿追踪App的常见设计模式 */

/* ========== CSS 变量 (与 Tailwind 配合使用) ========== */
:root {
    /* 主色调 - 柔和暖色（蜜桃/薄荷/薰衣草），适合育儿场景 */
    --color-primary: #F2A07B;       /* 蜜桃 - 主操作 */
    --color-primary-light: #FBE5D8;
    --color-primary-dark: #E08860;

    --color-secondary: #C4B1E0;     /* 薰衣草 - 睡眠 */
    --color-secondary-light: #EEE8F7;

    --color-success: #9CC9A5;       /* 薄荷 - 尿布 */
    --color-success-light: #E3F1E5;

    --color-warning: #E8C07D;       /* 暖黄 - 生长/提醒 */
    --color-warning-light: #FAF0DC;

    --color-danger: #E8877F;        /* 珊瑚 - 用药/删除 */
    --color-danger-light: #FAE4E1;

    --color-info: #8FB8D8;          /* 雾蓝 - 分析 */
    --color-info-light: #E3EFF8;

    /* 中性色 - 暖调 */
    --color-bg: #FBF7F2;            /* 奶油白 */
    --color-surface: #FFFDFA;       /* 暖白卡片 */
    --color-border: #EDE4D8;        /* 暖边框 */
    --color-text: #4A3F35;          /* 深暖棕 */
    --color-text-secondary: #8C7B6B; /* 暖灰 */
    --color-text-muted: #B5A594;    /* 浅暖灰 */

    /* 间距系统 (8px 基准) */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;

    /* 圆角系统 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* 阴影系统 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    /* 动画 */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* 底部导航高度 */
    --nav-height: 64px;
    --nav-safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ========== 基础样式重置 ========== */
* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(180deg, var(--color-bg) 0%, #F7EFE6 100%);
    color: var(--color-text);
    line-height: 1.5;
    padding-bottom: calc(var(--nav-height) + var(--nav-safe-bottom) + 8px);
    min-height: 100vh;
    overscroll-behavior: none;
}

/* ========== 安全区域支持 (iPhone Notch) ========== */
@supports (padding-top: env(safe-area-inset-top)) {
    .safe-area-top {
        padding-top: env(safe-area-inset-top);
    }

    .safe-area-bottom {
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* ========== 页面容器 ========== */
.page-container {
    max-width: 480px;
    margin: 0 auto;
    padding: var(--space-md);
    padding-bottom: calc(var(--nav-height) + var(--nav-safe-bottom) + var(--space-lg));
}

/* ========== 页面标题 ========== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
}

/* ========== 卡片组件 ========== */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-md);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

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

.card-elevated {
    box-shadow: var(--shadow-lg);
}

@media (min-width: 480px) {
    .card:hover {
        box-shadow: var(--shadow-lg);
    }
}

/* ========== 统计卡片 ========== */
.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-accent, var(--color-primary));
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--card-accent, var(--color-primary));
    line-height: 1.2;
}

.stat-card-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card-feeding { --card-accent: var(--color-primary); }
.stat-card-diaper { --card-accent: var(--color-success); }
.stat-card-sleep { --card-accent: var(--color-secondary); }
.stat-card-medication { --card-accent: var(--color-danger); }
.stat-card-growth { --card-accent: var(--color-warning); }
.stat-card-illness { --card-accent: var(--color-danger); }

/* ========== 今日概览单卡片（参考设计稿） ========== */
.today-summary-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 14px 16px;
    margin-bottom: var(--space-lg);
}
.today-summary-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}
.today-summary-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text);
}
.today-summary-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}
.today-summary-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.summary-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    padding: 4px 0;
}
.summary-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.summary-label {
    color: var(--color-text);
    font-weight: 600;
    min-width: 48px;
}
.summary-value {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}
.summary-empty {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    text-align: center;
    padding: 12px 0;
}
.today-summary-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--color-border);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}
.today-summary-footer a {
    color: var(--color-primary);
    text-decoration: none;
}

/* ========== 快捷操作按钮 ========== */
.quick-action-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.quick-action-grid-6 {
    grid-template-columns: repeat(3, 1fr);
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-sm);
    border-radius: var(--radius-md);
    background: var(--action-bg, var(--color-primary-light));
    color: var(--action-color, var(--color-primary));
    text-decoration: none;
    transition: all var(--transition-fast);
    min-height: 80px;
}

.quick-action-btn:hover {
    background: var(--action-hover, var(--color-primary));
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-action-btn:active {
    transform: scale(0.95);
}

.quick-action-icon {
    font-size: 1.75rem;
    margin-bottom: var(--space-xs);
    line-height: 1;
}

.quick-action-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
}

.quick-action-btn.feeding { --action-bg: #FBE5D8; --action-color: #D97F56; }
.quick-action-btn.diaper { --action-bg: #E3F1E5; --action-color: #6FA97B; }
.quick-action-btn.sleep { --action-bg: #EEE8F7; --action-color: #9B84C4; }
.quick-action-btn.analysis { --action-bg: #FAF0DC; --action-color: #C9A24E; }
.quick-action-btn.medication { --action-bg: #FAE4E1; --action-color: #D96C62; }
.quick-action-btn.growth { --action-bg: #FAF0DC; --action-color: #C9A24E; }
.quick-action-btn.illness { --action-bg: #FAE4E1; --action-color: #D96C62; }
.quick-action-btn.supplement { --action-bg: #E3EFF8; --action-color: #6C94B8; }

/* ========== 一键快捷记录栏（暖色改版：柔色圆钮，4 列换行） ========== */
.quick-add-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px 4px;
    margin-bottom: 16px;
    padding: 14px 10px;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}
.quick-add-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px 2px;
    border-radius: var(--radius-md);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: all 0.15s ease;
}
.quick-add-btn:active { transform: scale(0.92); }
.quick-add-btn.active { background: var(--color-primary-light); color: var(--color-primary-dark); }
.quick-add-icon {
    width: 50px;
    height: 50px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.55rem;
    transition: transform 0.15s ease;
}
.quick-add-btn:active .quick-add-icon { transform: scale(0.9); }
.quick-add-btn.feed .quick-add-icon { background: #FBE5D8; }        /* 蜜桃 */
.quick-add-btn.diaper .quick-add-icon { background: #E3F1E5; }      /* 薄荷 */
.quick-add-btn.sleep .quick-add-icon { background: #EEE8F7; }       /* 薰衣草 */
.quick-add-btn.water .quick-add-icon { background: #E3EFF8; }       /* 雾蓝 */
.quick-add-btn.dirty .quick-add-icon { background: #F5E6D0; }       /* 暖棕 */

/* 展开表单 */
.qa-form-container { margin-bottom: 16px; }
.qa-form {
    display: flex;
    gap: 8px;
    align-items: center;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 10px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 8px;
}
.qa-input { flex: 1; min-height: 42px; padding: 8px 12px; }
.qa-select { flex: 1; min-height: 42px; padding: 8px 12px; }
.qa-submit {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background: var(--color-primary);
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    flex-shrink: 0;
}

/* ========== 时间线组件 ========== */
.timeline {
    position: relative;
    padding-left: var(--space-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--color-border);
    border-radius: var(--radius-full);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-md);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: calc(-1 * var(--space-lg) + 2px);
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--dot-color, var(--color-primary));
    border: 2px solid var(--color-bg);
    box-shadow: var(--shadow-sm);
}

.timeline-dot.feeding { --dot-color: var(--color-primary); }
.timeline-dot.diaper { --dot-color: var(--color-success); }
.timeline-dot.sleep { --dot-color: var(--color-secondary); }
.timeline-dot.medication { --dot-color: var(--color-danger); }
.timeline-dot.growth { --dot-color: var(--color-warning); }

.timeline-content {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    box-shadow: var(--shadow-sm);
}

.timeline-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.timeline-title {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.875rem;
}

.timeline-detail {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
}

/* ========== 表单组件 ========== */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-surface);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    /* 确保移动端触摸友好 */
    min-height: 48px;
    appearance: none;
    -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input[data-loading="true"],
.form-select[data-loading="true"] {
    opacity: 0.6;
    pointer-events: none;
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

/* 单选按钮组 */
.radio-group {
    display: flex;
    gap: var(--space-sm);
}

.radio-option {
    flex: 1;
    position: relative;
}

.radio-option input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-option label {
    display: block;
    text-align: center;
    padding: var(--space-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.radio-option input:checked + label {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    min-height: 48px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.btn:active {
    transform: scale(0.97);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

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

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

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

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-border);
    color: var(--color-text);
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* ========== 底部导航 ========== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--nav-height) + var(--nav-safe-bottom));
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    z-index: 50;
    display: flex;
    align-items: flex-start;
    padding-top: var(--space-sm);
    padding-bottom: var(--nav-safe-bottom);
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.bottom-nav-inner {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    max-width: 540px;
    margin: 0 auto;
    gap: 2px;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--color-text-muted);
    padding: 6px 4px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 44px;
    position: relative;
}

.nav-item:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.nav-item.active {
    color: var(--color-primary);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.nav-icon {
    width: 22px;
    height: 22px;
    margin-bottom: 2px;
}

.nav-label {
    font-size: 0.6rem;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

@media (max-width: 400px) {
    .nav-icon {
        width: 20px;
        height: 20px;
    }
    .nav-label {
        font-size: 0.55rem;
    }
}

/* ========== 记录卡片 ========== */
.record-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-sm);
    transition: all var(--transition-fast);
    border-left: 4px solid var(--record-accent, var(--color-primary));
}

.record-card:active {
    transform: scale(0.98);
    background: var(--color-bg);
}

.record-card.feeding { --record-accent: var(--color-primary); }
.record-card.diaper { --record-accent: var(--color-success); }
.record-card.sleep { --record-accent: var(--color-secondary); }
.record-card.medication { --record-accent: var(--color-danger); }
.record-card.growth { --record-accent: var(--color-warning); }
.record-card.illness { --record-accent: var(--color-danger); }
.record-card.supplement { --record-accent: #C9A24E; }
.record-card.water { --record-accent: var(--color-info); }

.record-row.feeding { --record-accent: var(--color-primary); }
.record-row.diaper { --record-accent: var(--color-success); }
.record-row.sleep { --record-accent: var(--color-secondary); }
.record-row.medication { --record-accent: var(--color-danger); }
.record-row.growth { --record-accent: var(--color-warning); }
.record-row.illness { --record-accent: var(--color-danger); }
.record-row.supplement { --record-accent: #C9A24E; }

.record-info {
    flex: 1;
}

.record-title {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9375rem;
}

.record-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.record-detail {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 2px;
}

.record-delete {
    color: var(--color-text-muted);
    padding: var(--space-sm);
    margin: calc(-1 * var(--space-sm));
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.record-delete:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.record-actions {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}
.record-edit {
    color: var(--color-text-muted);
    padding: var(--space-sm);
    margin: calc(-1 * var(--space-sm));
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    background: none;
    border: none;
    cursor: pointer;
}
.record-edit:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* 相对时间标签（参考设计稿玫红色标签） */
.rel-time-badge {
    flex-shrink: 0;
    font-size: 0.72rem;
    color: #fff;
    background: #EC4899;
    border-radius: 4px;
    padding: 1px 6px;
    white-space: nowrap;
}

/* ========== 编辑弹窗 ========== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 100;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}
.modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    width: 100%;
    max-width: 480px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 16px 20px 24px;
    animation: slideUp 0.25s ease;
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.modal-header h3 { margin: 0; font-size: 1.1rem; }
.modal-close {
    background: none; border: none;
    font-size: 1.6rem; cursor: pointer;
    color: var(--color-text-muted); line-height: 1;
}
.modal-body .btn { margin-top: 8px; }

/* ========== 快速操作按钮组 ========== */
.quick-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.quick-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    min-height: 64px;
}

.quick-btn:active {
    transform: scale(0.95);
}

.quick-btn-wet {
    background: #E3EFF8;
    color: #6C94B8;
}

.quick-btn-dirty {
    background: #F5E6D0;
    color: #B08356;
}

.quick-btn-mixed {
    background: #FBE5D8;
    color: #D97F56;
}

/* ========== 活跃睡眠卡片 ========== */
.active-sleep-card {
    background: linear-gradient(135deg, var(--color-secondary-light), #F7F1EC);
    border: 2px solid var(--color-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: pulse-gentle 2s ease-in-out infinite;
}

@keyframes pulse-gentle {
    0%, 100% { box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.2); }
    50% { box-shadow: 0 0 0 8px rgba(139, 92, 246, 0); }
}

.active-sleep-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.active-sleep-icon {
    font-size: 2rem;
}

.active-sleep-text h4 {
    margin: 0;
    color: var(--color-secondary);
    font-weight: 700;
}

.active-sleep-text p {
    margin: 0;
    color: var(--color-secondary);
    opacity: 0.8;
    font-size: 0.875rem;
}

/* ========== Toast 通知 ========== */
.toast-container {
    position: fixed;
    top: calc(var(--space-md) + env(safe-area-inset-top, 0px));
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    width: calc(100% - var(--space-xl));
    max-width: 400px;
    pointer-events: none;
}

.toast {
    background: var(--color-text);
    color: white;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toast-in 0.3s ease;
}

.toast.success {
    background: var(--color-success);
}

.toast.error {
    background: var(--color-danger);
}

.toast.info {
    background: var(--color-info);
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.toast.hiding {
    animation: toast-out 0.3s ease forwards;
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* ========== 空状态 ========== */
.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

.empty-state-text {
    font-size: 0.9375rem;
}

/* ========== Tab 导航 ========== */
.tab-nav {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
    background: var(--color-bg);
    padding: var(--space-xs);
    border-radius: var(--radius-lg);
    overflow-x: auto;          /* 标签多时横向滚动，不换行断字 */
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
    flex: 0 0 auto;            /* 不再均分，按内容宽 */
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 40px;
    white-space: nowrap;       /* 关键：文字不折行 */
}

.tab-btn.active {
    background: var(--color-surface);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* ========== 图表容器 ========== */
.chart-container {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow-sm);
}

.chart-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
    text-align: center;
}

/* ========== 宝宝头部信息 ========== */
.baby-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: linear-gradient(135deg, var(--color-primary-light), #E0F2FE);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.baby-avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: var(--shadow-md);
}

.baby-info h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.baby-age {
    font-size: 0.875rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-top: var(--space-xs);
}

/* ========== 动画 ========== */
.fade-in {
    animation: fadeIn var(--transition-normal) ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp var(--transition-normal) ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 微交互优化 */
@media (hover: hover) {
    .record-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateX(4px);
    }

    .quick-action-btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    .btn:hover:not(:disabled) {
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }
}

/* 交错动画 */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }
.stagger-6 { animation-delay: 300ms; }

/* ========== 工具类 ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.hidden { display: none; }

/* ========== 响应式调整 ========== */
@media (min-width: 480px) {
    .page-container {
        padding: var(--space-lg);
    }
}

/* ========== 打印样式 ========== */
@media print {
    .bottom-nav,
    .toast-container {
        display: none;
    }

    body {
        padding-bottom: 0;
    }
}
/* ========== LLM 加载视觉反馈 ==========
   用法：button 内放两个 span：.btn-label (默认) + .btn-loading (请求中)
   - HTMX 表单：父 <form> 加 .htmx-request class 时自动切换（HTMX 自动加）
   - 非 HTMX 按钮：手动 toggle .is-loading class
*/
.bt-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: bt-spin 0.7s linear infinite;
}

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

.btn-with-loading .btn-label,
.btn-with-loading .btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-with-loading .btn-loading {
    display: none;
}

/* HTMX: 父 form 在请求中带 htmx-request class */
.htmx-request .btn-with-loading .btn-label {
    display: none !important;
}
.htmx-request .btn-with-loading .btn-loading {
    display: inline-flex !important;
}

/* 非 HTMX: 手动加 is-loading class */
.is-loading .btn-with-loading .btn-label {
    display: none !important;
}
.is-loading .btn-with-loading .btn-loading {
    display: inline-flex !important;
}

/* ========== 局部删除的淡出动画 ==========
   端点返回空 body + HTMX outerHTML swap 替换目标 → 卡片消失。
   配合 .htmx-swapping（HTMX 在 swap 期间给目标加的 class）做淡出。 */
.record-card,
.record-row {
    transition: opacity 220ms ease, transform 220ms ease;
}
.record-card.htmx-swapping,
.record-row.htmx-swapping {
    opacity: 0;
    transform: scale(0.96) translateY(-4px);
}

/* ============================================================
   首页暖色改版组件（2026-10）
   ============================================================ */

/* 宝宝主卡片：暖色渐变 + 右侧日期问候 */
.home-hero {
    position: relative;
    background: linear-gradient(135deg, #FBE5D8 0%, #F7EFE6 60%, #EFE8F5 100%);
    border: 1px solid #F3DCCB;
    border-radius: var(--radius-xl);
    padding: 18px;
    margin-bottom: var(--space-md);
    overflow: hidden;
}
.home-hero .baby-avatar {
    width: 56px;
    height: 56px;
    font-size: 1.9rem;
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    border: 2px solid #F3DCCB;
}
.home-hero .baby-info h2 {
    font-size: 1.35rem;
    color: var(--color-text);
}
.home-hero .baby-age {
    color: var(--color-primary-dark);
    background: rgba(255, 255, 255, 0.65);
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    margin-top: 4px;
}
.home-hero-date {
    position: absolute;
    top: 14px;
    right: 16px;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    background: rgba(255, 255, 255, 0.6);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

/* 今日概览：3 格迷你统计 */
.today-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 4px 0 10px;
}
.today-stat {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 10px 6px 8px;
    text-align: center;
}
.today-stat .ts-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}
.today-stat .ts-value small {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-left: 1px;
}
.today-stat .ts-label {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    margin-top: 3px;
}
.today-stat.feed { background: var(--color-primary-light); }
.today-stat.feed .ts-value { color: var(--color-primary-dark); }
.today-stat.sleep { background: var(--color-secondary-light); }
.today-stat.sleep .ts-value { color: #8B72B8; }
.today-stat.diaper { background: var(--color-success-light); }
.today-stat.diaper .ts-value { color: #6FA97B; }

/* 概览补充行（辅食/喝水/补剂等） */
.today-extra {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    padding: 2px 2px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
}
.today-extra span { white-space: nowrap; }

/* 智能快速记录：压缩为一行 */
.smart-record-compact {
    padding: 12px 14px;
    border: 1px solid var(--color-primary-light);
    background: linear-gradient(135deg, var(--color-primary-light), #F7EFE6);
}
.smart-record-head {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}
.smart-record-row {
    display: flex;
    gap: 8px;
    align-items: stretch;
}
.smart-record-row .form-input {
    flex: 1;
    height: 44px;
    min-height: 44px;
    background: var(--color-surface);
}
.smart-record-row .btn {
    width: auto;                /* 覆盖 .btn 的 width:100% */
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 0 18px;
    min-height: 44px;
}
.smart-record-row .form-input {
    min-width: 0;               /* 允许在 flex 里收缩 */
}
.smart-record-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}
.smart-record-chips .example-chip {
    padding: 3px 10px;
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.8);
}

/* 时间线日期分组头：暖色细分隔线 */
.date-group-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 10px 4px 8px;
    border-bottom: 2px solid var(--color-primary-light);
    margin-bottom: 8px;
}

/* 快捷按钮：更多格子 */
.quick-add-btn.more .quick-add-icon {
    background: var(--color-bg);
    color: var(--color-text-secondary);
    font-size: 1.2rem;
    letter-spacing: 1px;
    border: 1.5px dashed var(--color-border);
}

/* ========== 全量记录 bottom sheet ========== */
.sheet {
    position: fixed; inset: 0; z-index: 100;
}
.sheet.hidden { display: none; }
.sheet-overlay {
    position: absolute; inset: 0;
    background: rgba(74, 63, 53, 0.4);
    animation: fadeIn 0.2s ease;
}
.sheet-panel {
    position: absolute; left: 0; right: 0; bottom: 0;
    background: var(--color-surface);
    border-radius: 24px 24px 0 0;
    padding: 10px 20px calc(24px + env(safe-area-inset-bottom, 0px));
    max-height: 70vh; overflow-y: auto;
    animation: sheet-up 0.25s ease;
}
@keyframes sheet-up {
    from { transform: translateY(40%); opacity: 0.5; }
    to { transform: translateY(0); opacity: 1; }
}
.sheet-handle {
    width: 40px; height: 4px; border-radius: 9999px;
    background: var(--color-border); margin: 0 auto 14px;
}
.sheet-title {
    font-size: 1.05rem; font-weight: 700; color: var(--color-text);
    margin: 0 0 14px;
}
.sheet-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px 4px;
}
.sheet-item {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    text-decoration: none; color: var(--color-text-secondary);
    font-size: 0.78rem; font-weight: 600;
    padding: 6px 2px; border-radius: var(--radius-md);
    transition: transform 0.15s ease;
}
.sheet-item:active { transform: scale(0.92); }
.sheet-icon {
    width: 50px; height: 50px; border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.55rem;
}

/* 两列表单：允许收缩，避免 datetime 控件挤压同行元素 */
.form-row-2 > * { min-width: 0; }
.form-row-2 .form-input,
.form-row-2 .form-select { width: 100%; min-width: 0; }

/* ========== 成长进度 hero（里程碑/月龄清单共享） ========== */
.growth-hero {
    background: linear-gradient(135deg, #FAF0DC 0%, #F8E8D4 55%, #FBE5D8 100%);
    border: 1px solid #F0DFC0;
    border-radius: var(--radius-xl);
    padding: 18px;
    margin-bottom: var(--space-md);
}
.growth-hero-top {
    display: flex; align-items: flex-start; justify-content: space-between;
    margin-bottom: 14px;
}
.growth-hero-label { font-size: 0.8rem; color: var(--color-text-secondary); }
.growth-hero-age { font-size: 1.6rem; font-weight: 800; color: var(--color-text); margin-top: 2px; }
.growth-hero-link {
    font-size: 0.8rem; font-weight: 600; color: var(--color-primary-dark);
    background: rgba(255,255,255,0.7); padding: 6px 12px; border-radius: 9999px;
    text-decoration: none; white-space: nowrap;
}
.growth-progress-bar {
    height: 10px; border-radius: 9999px;
    background: rgba(255,255,255,0.7); overflow: hidden;
}
.growth-progress-fill {
    height: 100%; border-radius: 9999px;
    background: linear-gradient(90deg, #E8C07D, #E08860);
    transition: width 0.6s ease;
}
.growth-progress-text {
    display: flex; justify-content: space-between;
    font-size: 0.78rem; color: var(--color-text-secondary); margin-top: 8px;
}
.growth-progress-text strong { color: var(--color-text); font-size: 0.95rem; }
*/