/* 身体信息登记系统 —— 样式表 */

:root {
    --bg: #f4f6fb;
    --bg-soft: #eaeef7;
    --card: #ffffff;
    --text: #1b2333;
    --muted: #79839a;
    --border: #e4e8f2;
    --primary: #4f7cff;
    --primary-dark: #3a63e0;
    --primary-weak: rgba(79, 124, 255, .1);
    --danger: #ef4b5c;
    --success: #20b67f;
    --warn: #f5a524;
    --shadow: 0 6px 24px rgba(28, 42, 84, .07);
    --radius: 14px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #141824;
        --bg-soft: #1c2130;
        --card: #1b2030;
        --text: #e6e9f2;
        --muted: #8b93a8;
        --border: #2a3145;
        --primary: #6f92ff;
        --primary-dark: #5a7cf0;
        --primary-weak: rgba(111, 146, 255, .16);
        --shadow: 0 6px 24px rgba(0, 0, 0, .3);
    }
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 600; }

/* ---------------- 顶部栏 ---------------- */
.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 18px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
}

.brand {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: .5px;
}

.brand::before {
    content: "";
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-right: 8px;
    border-radius: 50%;
    background: var(--primary);
    vertical-align: middle;
}

.user-area {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.user-area #user-name {
    color: var(--muted);
}

.user-area #user-name strong {
    color: var(--text);
    font-weight: 600;
}

/* ---------------- Tab ---------------- */
.tabs {
    display: flex;
    gap: 6px;
    padding: 10px 18px 0;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 53px;
    z-index: 15;
}

.tab {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--muted);
    font-size: 15px;
    font-weight: 600;
    padding: 8px 16px 12px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}

.tab:hover { color: var(--text); }

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade .18s ease; }

@keyframes fade {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: none; }
}

/* ---------------- 布局 ---------------- */
.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 16px 14px 48px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    margin-bottom: 16px;
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 14px;
}

.card-head h2 { font-size: 16px; }

.hint {
    font-size: 12.5px;
    color: var(--muted);
}

.group-title {
    margin: 16px 0 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 1px;
}

.group-title:first-child { margin-top: 0; }

/* ---------------- 表单 ---------------- */
.field { margin-bottom: 14px; }

.field > label {
    display: block;
    margin-bottom: 6px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--muted);
}

.field .unit-tip {
    float: right;
    font-weight: 400;
    font-size: 12px;
}

input[type="text"],
input[type="date"],
input[type="time"],
input[type="number"],
select {
    width: 100%;
    padding: 12px 14px;
    font-size: 16px;          /* 16px 防止 iOS 在聚焦时自动放大页面 */
    font-family: inherit;
    color: var(--text);
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    outline: none;
    min-height: 44px;         /* 手指点击区不小于 44pt (Apple HIG) */
    -webkit-appearance: none;  /* 去掉 iOS date/time 原生丑控件 */
    appearance: none;
    transition: border-color .15s, box-shadow .15s;
}

input[type="time"] {
    font-variant-numeric: tabular-nums;
}

input:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-weak);
}

input.invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 75, 92, .12);
}

.field-error {
    margin-top: 5px;
    font-size: 12.5px;
    color: var(--danger);
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

@media (max-width: 480px) {
    .metric-grid { grid-template-columns: 1fr; }
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

/* 手机竖屏：保存按钮作为主操作占满全宽 */
@media (max-width: 480px) {
    .form-actions .btn-primary {
        width: 100%;
        order: -1;
        min-height: 48px;
        font-size: 16px;
    }
    .form-actions .btn-ghost {
        flex: 1;
        min-height: 44px;
    }
}

/* 通用：hidden 属性始终隐藏（防止被按钮等 display 类覆盖） */
[hidden] { display: none !important; }

/* ---------------- 按钮 ---------------- */
.btn {
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    font-size: 15px;
    font-family: inherit;
    font-weight: 600;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: background .15s, border-color .15s, opacity .15s;
}

.btn:disabled { opacity: .6; cursor: not-allowed; }

.btn-primary {
    background: var(--primary);
    color: #fff;
    flex: 1;
}

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

.btn-ghost {
    background: transparent;
    color: var(--muted);
    border-color: var(--border);
}

.btn-ghost:hover { color: var(--text); border-color: var(--muted); }

.btn-danger {
    background: transparent;
    color: var(--danger);
    border-color: transparent;
    padding: 4px 8px;
    font-size: 13px;
}

.btn-danger:hover { background: rgba(239, 75, 92, .1); }

.btn-sm { padding: 6px 12px; font-size: 13.5px; }

/* ---------------- 筛选栏 ---------------- */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.filters select,
.filters input {
    width: auto;
    flex: 1;
    min-width: 110px;
    padding: 8px 10px;
    font-size: 14px;
}

/* ---------------- 表格 ---------------- */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 10px 8px;
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
}

th {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--muted);
}

tbody tr:hover { background: var(--bg-soft); }

td.date-cell { font-variant-numeric: tabular-nums; }

td .note-cell {
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--muted);
}

.delta-up { color: var(--danger); font-size: 12px; margin-left: 4px; }
.delta-down { color: var(--success); font-size: 12px; margin-left: 4px; }
.delta-flat { color: var(--muted); font-size: 12px; margin-left: 4px; }

.row-actions { display: flex; gap: 2px; }

.pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 14px;
    font-size: 13.5px;
    color: var(--muted);
}

/* ---------------- 统计卡片 ---------------- */
.stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 12px 0 4px;
}

@media (max-width: 480px) {
    .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.stat {
    background: var(--bg-soft);
    border-radius: 10px;
    padding: 10px;
    text-align: center;
}

.stat .stat-label {
    font-size: 12px;
    color: var(--muted);
}

.stat .stat-value {
    font-size: 17px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.stat .stat-value small {
    font-size: 11px;
    font-weight: 500;
    color: var(--muted);
    margin-left: 2px;
}

/* ---------------- 图表 ---------------- */
.chart-box {
    width: 100%;
    height: 300px;
    margin-top: 6px;
}

.chart-box.hidden { display: none; }

/* ---------------- 空态 ---------------- */
.empty {
    padding: 36px 12px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
}

.empty::before {
    content: "📋";
    display: block;
    font-size: 30px;
    margin-bottom: 8px;
}

/* ---------------- Toast ---------------- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translate(-50%, 16px);
    max-width: 80vw;
    padding: 10px 20px;
    background: rgba(27, 35, 51, .93);
    color: #fff;
    font-size: 14px;
    border-radius: 999px;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
    z-index: 99;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

.toast.error { background: rgba(220, 60, 75, .95); }
.toast.success { background: rgba(28, 160, 116, .95); }

/* ---------------- 登录页 ---------------- */
.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(160deg, var(--bg) 0%, var(--primary-weak) 100%);
}

.login-card {
    width: 100%;
    max-width: 380px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 28px 24px;
}

.login-card h1 {
    font-size: 21px;
    text-align: center;
    margin-bottom: 6px;
}

.login-card .subtitle {
    text-align: center;
    color: var(--muted);
    font-size: 13.5px;
    margin-bottom: 22px;
}

.login-card .btn-primary { width: 100%; margin-top: 6px; }

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 4px 0 10px;
    font-size: 13.5px;
    color: var(--muted);
    cursor: pointer;
}

.checkbox-row input { width: 15px; height: 15px; accent-color: var(--primary); }

.recent-users {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 18px;
    justify-content: center;
}

.recent-users .chip {
    padding: 5px 12px;
    font-size: 13px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--muted);
    cursor: pointer;
}

.recent-users .chip:hover { color: var(--primary); border-color: var(--primary); }

.recent-title {
    margin-top: 20px;
    text-align: center;
    font-size: 12.5px;
    color: var(--muted);
}


/* ---------------- 管理后台 ---------------- */
.admin-layout {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    margin-top: 16px;
}

.admin-side {
    position: sticky;
    top: 70px;
    padding: 14px;
}

.admin-side .card-head {
    margin-bottom: 10px;
}

.admin-side #user-filter {
    width: 100%;
    margin-bottom: 10px;
}

.admin-side .empty { padding: 20px 6px; }

#user-list {
    max-height: calc(100vh - 220px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.user-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
    color: var(--text);
    cursor: pointer;
    font-size: 14px;
    transition: border-color .15s, background .15s;
}

.user-item:hover { border-color: var(--primary); }

.user-item.active {
    background: var(--primary-weak);
    border-color: var(--primary);
}

.user-name {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.user-name .admin-tag {
    font-style: normal;
    font-size: 11px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--warn);
    color: #fff;
}

.user-meta {
    font-size: 12px;
    color: var(--muted);
    margin-top: 2px;
}

.admin-main { min-width: 0; }

.admin-main > .card { padding: 16px; }

.admin-main .card-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

#admin-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 14px;
}

/* 管理后台：视图切换 */
.admin-tabs {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.admin-tab {
    padding: 7px 18px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--card);
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    transition: border-color .15s, background .15s, color .15s;
}

.admin-tab:hover { border-color: var(--primary); }

.admin-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* 指标管理视图：隐藏左侧用户列 */
.admin-layout.view-metrics { grid-template-columns: 1fr; }
.admin-layout.view-metrics .admin-side { display: none; }
.admin-layout.view-metrics .admin-main:not(#metric-card) { display: none; }

/* 卡片头部右侧操作区 */
.head-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 10px;
}

.admin-main .card-head .head-right { align-items: baseline; }

/* 用户新增表单 */
.user-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px 14px;
    padding: 14px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    background: var(--bg);
    margin-bottom: 10px;
}

.user-form-grid .field { margin: 0; }

.user-form-grid input[type="number"] { width: 100%; }

#user-form .form-actions { display: flex; gap: 10px; padding: 0 2px 12px; }

/* 指标编辑表单 */
.metric-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px 14px;
    padding: 14px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    background: var(--bg);
    margin-bottom: 12px;
}

.metric-form-grid .field { margin: 0; }

.metric-form-grid input[type="number"] { width: 100%; }

#metric-form .form-actions { display: flex; gap: 10px; padding-left: 2px; }

/* 指标状态徽标 */
.badge {
    display: inline-block;
    font-size: 12px;
    padding: 1px 9px;
    border-radius: 999px;
    line-height: 1.6;
}

.badge-on {
    background: rgba(32, 182, 127, .13);
    color: var(--success);
}

.badge-off {
    background: rgba(154, 164, 189, .15);
    color: var(--muted);
}

.code-cell {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 12.5px;
    color: var(--muted);
}

@media (max-width: 900px) {
    .admin-layout { grid-template-columns: 1fr; }
    .admin-side {
        position: static;
        top: auto;
    }
    #user-list { max-height: 240px; }
    #admin-charts { grid-template-columns: 1fr; }
}