/* Apple Health–inspired: light grouped background, SF-like stack, soft cards */

:root {
    --bg-grouped: #f2f2f7;
    --bg-elevated: #ffffff;
    --separator: rgba(60, 60, 67, 0.12);
    --label-primary: #000000;
    --label-secondary: rgba(60, 60, 67, 0.6);
    --label-tertiary: rgba(60, 60, 67, 0.3);
    --accent-blue: #007aff;
    --accent-green: #34c759;
    --accent-orange: #ff9500;
    --accent-red: #ff3b30;
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 10px;
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
    --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
        "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-stack);
    font-size: 17px;
    line-height: 1.47;
    color: var(--label-primary);
    background: var(--bg-grouped);
    padding: 0 0 48px;
}

.app {
    max-width: 820px;
    margin: 0 auto;
    padding: 16px 20px 32px;
}

/* —— Header（大标题区，类似「健康」顶部）—— */
.app-header {
    text-align: center;
    padding: 24px 8px 8px;
}

.app-title {
    margin: 0;
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 0.37px;
    line-height: 1.12;
}

.app-subtitle {
    margin: 4px 0 0;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: 0.02em;
    color: var(--label-tertiary);
}

/* —— 用户条 —— */
.user-strip {
    margin-bottom: 16px;
}

.user-strip .field-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--label-secondary);
    text-transform: uppercase;
    letter-spacing: -0.08px;
    margin-bottom: 6px;
}

.user-strip .field-hint {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: var(--label-secondary);
}

.tech-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--separator);
    font-size: 15px;
    font-weight: 500;
    color: var(--label-secondary);
    cursor: pointer;
}

.tech-toggle input {
    width: auto;
    accent-color: var(--accent-blue);
}

.reflect-run-row {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: 10px;
}

.reflect-run-row select {
    flex: 1 1 200px;
    min-width: 0;
}

.reflect-follow-fieldset {
    border: none;
    margin: 0;
    padding: 0;
}

.reflect-follow-fieldset legend {
    padding: 0;
}

.radio-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
}

.radio-row input {
    width: auto;
    accent-color: var(--accent-blue);
}

.reflect-reason-block {
    margin-top: 14px;
    padding: 14px 16px;
    background: rgba(118, 118, 128, 0.06);
    border-radius: var(--radius-md);
    border: 1px solid var(--separator);
}

.btn-compact {
    padding: 10px 14px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    background: rgba(118, 118, 128, 0.12);
    color: var(--accent-blue);
    white-space: nowrap;
}

.btn-compact:hover {
    background: rgba(118, 118, 128, 0.18);
}

.app-dialog {
    max-width: 360px;
    width: calc(100vw - 40px);
    padding: 22px 20px;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

.app-dialog::backdrop {
    background: rgba(0, 0, 0, 0.35);
}

.dialog-title {
    margin: 0 0 10px;
    font-size: 20px;
    font-weight: 700;
}

.dialog-body {
    margin: 0 0 18px;
    font-size: 15px;
    color: var(--label-secondary);
    line-height: 1.45;
}

.dialog-actions {
    margin-top: 0;
    justify-content: flex-end;
}

.history-summary {
    margin-top: 12px;
    padding: 14px 16px;
    font-size: 15px;
    line-height: 1.45;
    color: var(--label-primary);
    background: rgba(118, 118, 128, 0.06);
    border-radius: var(--radius-md);
}

.history-raw {
    margin-top: 12px;
}

.history-raw summary {
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-blue);
    padding: 8px 0;
}

.history-raw pre {
    margin: 8px 0 0;
}

/* —— 分段控件（Tab）—— */
.tab-segment {
    display: flex;
    padding: 4px;
    margin: 0 0 20px;
    background: rgba(118, 118, 128, 0.12);
    border-radius: 10px;
    gap: 2px;
}

.tab-segment button {
    flex: 1;
    border: none;
    padding: 8px 10px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    color: var(--label-primary);
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.tab-segment button[aria-selected="true"] {
    background: var(--bg-elevated);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.08), 0 1px 1px rgba(0, 0, 0, 0.04);
}

.tab-segment button[aria-selected="false"] {
    color: var(--label-secondary);
}

.tab-segment button:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

.tab-panel {
    animation: fadeIn 0.22s ease;
}

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

/* —— 卡片 —— */
.card {
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    padding: 20px 18px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-card);
}

.card h2 {
    margin: 0 0 4px;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.35px;
}

.card h3 {
    margin: 20px 0 8px;
    font-size: 20px;
    font-weight: 600;
}

.card > p.muted,
.section-lead {
    margin: 0 0 16px;
    font-size: 15px;
    color: var(--label-secondary);
}

.card-hr {
    margin: 24px 0;
    border: none;
    height: 1px;
    background: var(--separator);
}

/* —— 表单控件 —— */
.field-label-inline {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--label-secondary);
    margin-bottom: 6px;
}

input[type="text"],
input[type="number"],
input[type="file"],
select,
textarea {
    width: 100%;
    max-width: 100%;
    font-family: inherit;
    font-size: 17px;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--separator);
    background: rgba(118, 118, 128, 0.05);
    color: var(--label-primary);
}

input::placeholder,
textarea::placeholder {
    color: var(--label-tertiary);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.25);
    background: var(--bg-elevated);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

/* 主按钮：填充蓝 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    font-size: 17px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

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

.btn-primary {
    background: var(--accent-blue);
    color: #fff;
}

.btn-primary:hover {
    opacity: 0.92;
}

.btn-secondary {
    background: rgba(118, 118, 128, 0.12);
    color: var(--accent-blue);
}

.btn-secondary:hover {
    background: rgba(118, 118, 128, 0.18);
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

.flex-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.flex-column {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    min-width: 260px;
}

.diet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
    align-items: end;
}

.diet-grid label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--label-secondary);
}

.diet-grid label.checkbox-row {
    flex-direction: row;
    align-items: center;
    gap: 10px;
}

.diet-grid input[type="number"],
.diet-grid select {
    font-weight: 400;
    color: var(--label-primary);
}

.checkbox-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 500;
}

.checkbox-row input[type="checkbox"] {
    width: auto;
    accent-color: var(--accent-blue);
}

/* —— 状态与分析 —— */
#analysis {
    margin-top: 16px;
    font-size: 15px;
    font-weight: 600;
    color: var(--label-secondary);
}

#progressList {
    margin-top: 12px;
    padding: 12px 16px;
    list-style: none;
    background: rgba(118, 118, 128, 0.06);
    border-radius: var(--radius-md);
}

#progressList li {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0 6px;
    margin-bottom: 8px;
    font-size: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--separator);
    min-height: 1.5em;
}

#progressList .agent-progress-label {
    flex: 0 1 auto;
    font-weight: 600;
    color: var(--label-secondary);
}

#progressList .agent-progress-status {
    flex: 1 1 120px;
    color: var(--label-primary);
    word-break: break-word;
}

#progressList li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

#report {
    margin-top: 8px;
    font-size: 15px;
    line-height: 1.5;
}

#report :where(p, ul, ol) {
    margin: 0 0 12px;
}

/* —— 饮食结果区 —— */
#dietStatus {
    margin-top: 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--label-secondary);
}

#dietResult {
    margin-top: 16px;
    padding: 16px;
    background: rgba(118, 118, 128, 0.06);
    border-radius: var(--radius-md);
    border: 1px solid var(--separator);
    font-size: 15px;
}

#dietResult h4 {
    margin: 0 0 10px;
    font-size: 17px;
    font-weight: 600;
}

#dietResult code {
    font-family: var(--font-mono);
    font-size: 13px;
    background: rgba(118, 118, 128, 0.1);
    padding: 2px 6px;
    border-radius: 6px;
}

#dietHistoryPre {
    margin-top: 12px;
    max-height: 360px;
    overflow: auto;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.45;
    background: rgba(118, 118, 128, 0.06);
    padding: 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--separator);
    white-space: pre-wrap;
    word-break: break-word;
}

/* —— 横幅与详情 —— */
.banner {
    padding: 12px 14px;
    border-radius: var(--radius-md);
    font-size: 15px;
    margin: 12px 0;
}

.banner-warning {
    background: rgba(255, 149, 0, 0.12);
    color: #c65a00;
    border: 1px solid rgba(255, 149, 0, 0.35);
}

.banner-error {
    color: var(--accent-red);
}

.meal-plan-list {
    margin: 8px 0;
    padding-left: 20px;
}

.meal-plan-list li {
    margin-bottom: 10px;
}

.muted-why {
    color: var(--label-secondary);
    font-size: 0.94em;
}

.meal-tips {
    font-size: 0.95em;
    color: var(--label-secondary);
}

details.diet-trace {
    margin-top: 12px;
    font-size: 13px;
    color: var(--label-secondary);
}

details.diet-trace summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--accent-blue);
    padding: 8px 0;
}

details.diet-trace pre {
    margin: 8px 0 0;
    padding: 12px;
    background: rgba(0, 0, 0, 0.04);
    border-radius: var(--radius-sm);
    overflow: auto;
    max-height: 280px;
    font-family: var(--font-mono);
    font-size: 11px;
}

/* —— 历史页空状态 —— */
.history-placeholder {
    padding: 24px 16px;
    text-align: center;
    color: var(--label-secondary);
    font-size: 15px;
}

.hidden {
    display: none !important;
}

/* 兼容旧版 score 条（若仍使用） */
.score-container {
    margin-top: 20px;
    padding: 14px;
    background: rgba(118, 118, 128, 0.06);
    border-radius: var(--radius-md);
}

.score-label {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 15px;
}

.score-bar-bg {
    width: 100%;
    height: 8px;
    background: rgba(118, 118, 128, 0.2);
    border-radius: 4px;
    overflow: hidden;
}

.score-bar {
    height: 100%;
    width: 0%;
    background: var(--accent-green);
    transition: width 0.8s ease;
    border-radius: 4px;
}

.score-text {
    margin-top: 8px;
    font-size: 15px;
    font-weight: 600;
}

@media (max-width: 600px) {
    .app-title {
        font-size: 28px;
    }

    .tab-segment button {
        font-size: 12px;
        padding: 8px 6px;
    }
}