/* =====================================================
   轻食记 · Material You (seed: teal) 设计令牌
   ===================================================== */
:root {
  --md-sys-color-primary: #00696B;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #9CF1F3;
  --md-sys-color-on-primary-container: #002022;
  --md-sys-color-secondary: #4A6363;
  --md-sys-color-secondary-container: #CCE8E8;
  --md-sys-color-on-secondary-container: #052020;
  --md-sys-color-tertiary: #4B5F92;
  --md-sys-color-tertiary-container: #D9E2FF;
  --md-sys-color-on-tertiary-container: #031A44;
  --md-sys-color-surface: #F7FBF5;
  --md-sys-color-surface-container-low: #F0F5EC;
  --md-sys-color-surface-container: #EAEFE6;
  --md-sys-color-surface-container-high: #E4EAE1;
  --md-sys-color-on-surface: #191D1B;
  --md-sys-color-on-surface-variant: #3F4947;
  --md-sys-color-outline: #6F7977;
  --md-sys-color-outline-variant: #BEC9C7;
  --water: #2E6BD8;
  --fat: #A86B2D;
  --shadow: 0 1px 2px rgba(23, 43, 41, .05), 0 6px 16px rgba(23, 43, 41, .07);
  --ease: cubic-bezier(.2, 0, 0, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-sys-color-primary: #4CDADB;
    --md-sys-color-on-primary: #003739;
    --md-sys-color-primary-container: #004F51;
    --md-sys-color-on-primary-container: #9CF1F3;
    --md-sys-color-secondary: #B0CCCB;
    --md-sys-color-secondary-container: #324B4B;
    --md-sys-color-on-secondary-container: #CCE8E8;
    --md-sys-color-tertiary: #B3C7FF;
    --md-sys-color-tertiary-container: #334777;
    --md-sys-color-on-tertiary-container: #D9E2FF;
    --md-sys-color-surface: #101613;
    --md-sys-color-surface-container-low: #181E1B;
    --md-sys-color-surface-container: #1C2220;
    --md-sys-color-surface-container-high: #262D2A;
    --md-sys-color-on-surface: #DFE4DE;
    --md-sys-color-on-surface-variant: #BEC9C7;
    --md-sys-color-outline: #899391;
    --md-sys-color-outline-variant: #3F4947;
    --water: #A8C7FA;
    --fat: #E0B884;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 6px 16px rgba(0, 0, 0, .28);
  }
}

/* =====================================================
   基础
   ===================================================== */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  font-family: -apple-system, "SF Pro", Roboto, "PingFang SC", sans-serif;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overscroll-behavior-y: none;
}
button {
  font: inherit; color: inherit; border: 0; background: none;
  cursor: pointer; touch-action: manipulation; padding: 0;
}
button:active { transform: scale(.96); }
input, select { font: inherit; color: var(--md-sys-color-on-surface); }
svg { display: block; }
.num, .ring-num, .ring-sub, .meal-kcal, .entry-kcal, .sg-kcal, .wd-ml, .macro-val {
  font-variant-numeric: tabular-nums;
}

/* =====================================================
   顶栏 / 布局
   ===================================================== */
.app-bar {
  padding: calc(env(safe-area-inset-top, 0px) + 18px) 20px 10px;
  max-width: 560px; margin: 0 auto;
}
.app-title { font-size: 26px; font-weight: 700; letter-spacing: .5px; }
.app-sub { font-size: 13px; color: var(--md-sys-color-on-surface-variant); margin-top: 2px; }

main {
  max-width: 560px; margin: 0 auto;
  padding: 8px 16px calc(96px + env(safe-area-inset-bottom, 0px));
}

.tab-page { display: none; }
.tab-page.active { display: block; animation: fadeIn .28s var(--ease); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* =====================================================
   卡片
   ===================================================== */
.card {
  background: var(--md-sys-color-surface-container-low);
  border-radius: 24px;
  padding: 18px;
  margin: 12px 0;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 15px; font-weight: 600;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 12px;
}
.hint { font-size: 12px; color: var(--md-sys-color-on-surface-variant); margin-top: 10px; line-height: 1.5; }
.about { font-size: 13px; color: var(--md-sys-color-on-surface-variant); line-height: 1.7; margin: 0; }

/* =====================================================
   日期切换
   ===================================================== */
.date-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 4px 6px; margin: 4px 0 2px;
}
.date-label { font-size: 17px; font-weight: 600; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface-variant);
  transition: transform .15s var(--ease), opacity .15s;
}
.icon-btn svg { width: 22px; height: 22px; }
.icon-btn svg path, .icon-btn svg circle {
  fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.icon-btn:disabled { opacity: .35; }

/* =====================================================
   进度环
   ===================================================== */
.rings-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ring-card { display: flex; flex-direction: column; align-items: center; padding: 16px 12px 14px; }
.ring-wrap { position: relative; width: 128px; height: 128px; }
.ring-wrap.small { width: 104px; height: 104px; flex: 0 0 auto; }
.ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 11; }
.ring-bg { stroke: var(--md-sys-color-surface-container-high); }
.ring-fg {
  stroke: var(--md-sys-color-primary);
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
  transition: stroke-dashoffset .8s var(--ease);
}
.ring-fg.water { stroke: var(--water); }
.ring-center {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.ring-num { font-size: 26px; font-weight: 700; line-height: 1.1; }
.ring-num.small { font-size: 20px; }
.ring-sub { font-size: 11px; color: var(--md-sys-color-on-surface-variant); margin-top: 2px; }
.ring-title { margin-top: 10px; font-size: 13px; color: var(--md-sys-color-on-surface-variant); }

/* =====================================================
   按钮
   ===================================================== */
.btn-primary {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 15px; font-weight: 600;
  transition: transform .15s var(--ease), filter .15s;
}
.btn-primary:active { transform: scale(.96); filter: brightness(1.08); }
.btn-primary.big { font-size: 17px; padding: 14px 28px; flex: 1; }
.btn-tonal {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border-radius: 999px;
  padding: 12px 20px;
  font-size: 14px; font-weight: 600;
  transition: transform .15s var(--ease), filter .15s;
}
.btn-tonal:active { transform: scale(.96); filter: brightness(.97); }
.btn-tonal.small { padding: 8px 16px; font-size: 13px; }

/* =====================================================
   chips / 分段控件
   ===================================================== */
.chip {
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px; font-weight: 500;
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface-variant);
  transition: background .15s var(--ease), color .15s, transform .15s;
}
.chip.selected {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-weight: 600;
}
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }

.seg-row {
  display: flex; gap: 4px;
  background: var(--md-sys-color-surface-container);
  border-radius: 999px; padding: 4px;
  margin: 8px 0 4px;
}
.seg {
  flex: 1; padding: 9px 0; border-radius: 999px;
  font-size: 14px; font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  transition: background .18s var(--ease), color .18s;
}
.seg.selected {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-weight: 600;
}

/* =====================================================
   饮水卡片
   ===================================================== */
.water-actions { display: flex; gap: 10px; align-items: center; }
.cup-row { display: flex; gap: 8px; margin: 14px 0 4px; }
.water-timeline { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.water-item {
  display: flex; justify-content: space-between;
  font-size: 13px; color: var(--md-sys-color-on-surface-variant);
  padding: 7px 12px;
  background: var(--md-sys-color-surface-container);
  border-radius: 12px;
}
.water-item .num { color: var(--water); font-weight: 600; }
.water-empty { font-size: 13px; color: var(--md-sys-color-on-surface-variant); text-align: center; padding: 6px 0 2px; }

/* =====================================================
   餐次区块
   ===================================================== */
.meal-head { display: flex; align-items: center; justify-content: space-between; }
.meal-name { font-size: 16px; font-weight: 600; }
.meal-kcal { font-size: 12px; color: var(--md-sys-color-on-surface-variant); margin-top: 2px; }
.meal-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.entry-row {
  display: flex; align-items: center; gap: 10px;
  background: var(--md-sys-color-surface-container);
  border-radius: 14px; padding: 10px 12px;
}
.entry-name { flex: 1; font-size: 14px; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.entry-serv { font-size: 12px; color: var(--md-sys-color-on-surface-variant); flex: 0 0 auto; }
.entry-kcal { font-size: 13px; font-weight: 600; color: var(--md-sys-color-primary); flex: 0 0 auto; }
.entry-del {
  width: 28px; height: 28px; border-radius: 999px; flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--md-sys-color-on-surface-variant);
  background: var(--md-sys-color-surface-container-high);
  transition: transform .15s var(--ease);
}
.entry-del svg { width: 14px; height: 14px; }
.entry-del svg path { fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; }
.meal-empty { font-size: 12px; color: var(--md-sys-color-on-surface-variant); padding: 4px 2px 2px; }

/* =====================================================
   分析
   ===================================================== */
.ana-top { display: flex; align-items: center; gap: 18px; }
.macro-list { flex: 1; display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.macro-head { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 5px; }
.macro-name { font-weight: 500; }
.macro-val { color: var(--md-sys-color-on-surface-variant); }
.macro-track {
  height: 8px; border-radius: 999px;
  background: var(--md-sys-color-surface-container-high);
  overflow: hidden;
}
.macro-fill { height: 100%; border-radius: 999px; width: 0; transition: width .6s var(--ease); }

.chart { width: 100%; height: auto; }
.chart .bar { fill: var(--md-sys-color-secondary-container); }
.chart .bar.today { fill: var(--md-sys-color-primary); }
.chart .goal-line {
  stroke: var(--md-sys-color-outline); stroke-width: 1.2;
  stroke-dasharray: 5 4;
}
.chart .axis { font-size: 9.5px; fill: var(--md-sys-color-on-surface-variant); text-anchor: middle; }
.chart .bar-val { font-size: 9px; fill: var(--md-sys-color-on-surface-variant); text-anchor: middle; }
.chart .goal-text { font-size: 9px; fill: var(--md-sys-color-outline); }

.wd-row { display: flex; gap: 6px; justify-content: space-between; }
.wd { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.wd-dot {
  width: 30px; height: 30px; border-radius: 999px;
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
}
.wd.ok .wd-dot { background: var(--water); }
.wd-ml { font-size: 11px; color: var(--md-sys-color-on-surface-variant); }
.wd-day { font-size: 11px; color: var(--md-sys-color-on-surface-variant); }
.wd-sum { margin-top: 12px; font-size: 13px; color: var(--md-sys-color-on-surface-variant); }
.wd-sum b { color: var(--water); font-size: 16px; }

.insights { margin: 0; padding: 0 0 0 2px; list-style: none; }
.insights li {
  font-size: 14px; line-height: 1.6;
  padding: 10px 12px; margin-bottom: 8px;
  background: var(--md-sys-color-surface-container);
  border-radius: 14px;
  color: var(--md-sys-color-on-surface);
}
.insights li::before { content: "✦ "; color: var(--md-sys-color-primary); }

/* =====================================================
   吃什么
   ===================================================== */
.sg-card { text-align: center; padding: 28px 20px 24px; margin-top: 4px; }
.sg-kicker { font-size: 13px; color: var(--md-sys-color-on-surface-variant); }
.sg-name { font-size: 30px; font-weight: 700; margin: 10px 0 8px; letter-spacing: .5px; }
.sg-meta { display: flex; justify-content: center; gap: 14px; align-items: baseline; }
.sg-serving { font-size: 14px; color: var(--md-sys-color-on-surface-variant); }
.sg-kcal { font-size: 18px; font-weight: 700; color: var(--md-sys-color-primary); }
.sg-tags { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.sg-tag {
  font-size: 12px; padding: 5px 11px; border-radius: 8px;
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
}
.sg-actions { display: flex; gap: 12px; margin: 14px 0; }
.sg-actions .btn-primary, .sg-actions .btn-tonal { flex: 1; text-align: center; }

/* =====================================================
   我的 / 表单
   ===================================================== */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; font-size: 13px; color: var(--md-sys-color-on-surface-variant); }
.field:last-child { margin-bottom: 0; }
.field input, .field select {
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface);
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 15px;
  outline: none;
}
.field input:focus, .field select:focus { border-color: var(--md-sys-color-primary); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.switch-row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 15px; margin-bottom: 14px;
}
.switch {
  appearance: none; -webkit-appearance: none;
  width: 52px; height: 32px; border-radius: 999px;
  background: var(--md-sys-color-surface-container-high);
  border: 2px solid var(--md-sys-color-outline);
  position: relative; cursor: pointer;
  transition: background .2s var(--ease), border-color .2s;
  flex: 0 0 auto;
}
.switch::after {
  content: ""; position: absolute; top: 50%; left: 4px;
  width: 20px; height: 20px; border-radius: 999px;
  background: var(--md-sys-color-outline);
  transform: translateY(-50%);
  transition: left .2s var(--ease), background .2s, width .2s, height .2s;
}
.switch:checked { background: var(--md-sys-color-primary); border-color: var(--md-sys-color-primary); }
.switch:checked::after { left: 24px; width: 24px; height: 24px; background: var(--md-sys-color-on-primary); }

/* =====================================================
   底部导航
   ===================================================== */
.bottom-nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  display: flex;
  background: var(--md-sys-color-surface-container);
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom, 0px));
  box-shadow: 0 -1px 0 var(--md-sys-color-outline-variant);
}
.nav-item {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 2px 0;
}
.nav-icon {
  width: 56px; height: 30px; border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s var(--ease);
}
.nav-icon svg { width: 22px; height: 22px; }
.nav-icon svg path, .nav-icon svg circle {
  fill: none; stroke: var(--md-sys-color-on-surface-variant);
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.nav-label { font-size: 11px; color: var(--md-sys-color-on-surface-variant); }
.nav-item.active .nav-icon { background: var(--md-sys-color-secondary-container); }
.nav-item.active .nav-icon svg path, .nav-item.active .nav-icon svg circle {
  stroke: var(--md-sys-color-on-secondary-container);
}
.nav-item.active .nav-label { color: var(--md-sys-color-on-surface); font-weight: 600; }

/* =====================================================
   Bottom Sheet
   ===================================================== */
.sheet-overlay {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(0, 0, 0, .32);
  opacity: 0; pointer-events: none;
  transition: opacity .25s var(--ease);
}
.sheet-overlay.open { opacity: 1; pointer-events: auto; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 51;
  max-width: 560px; margin: 0 auto;
  background: var(--md-sys-color-surface);
  border-radius: 28px 28px 0 0;
  padding: 8px 18px calc(18px + env(safe-area-inset-bottom, 0px));
  max-height: 86vh; overflow-y: auto;
  transform: translateY(105%);
  transition: transform .3s var(--ease);
  box-shadow: 0 -8px 30px rgba(0, 0, 0, .18);
}
.sheet.open { transform: translateY(0); }
.sheet-handle {
  width: 36px; height: 4px; border-radius: 999px;
  background: var(--md-sys-color-outline-variant);
  margin: 6px auto 10px;
}
.sheet-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.sheet-title { font-size: 18px; font-weight: 700; }
#food-search {
  width: 100%;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container-low);
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 15px;
  outline: none;
}
#food-search:focus { border-color: var(--md-sys-color-primary); }
.serv-row { display: flex; align-items: center; gap: 8px; margin: 12px 0 6px; }
.serv-label { font-size: 13px; color: var(--md-sys-color-on-surface-variant); margin-right: 2px; }
.search-results { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; }
.food-row {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px;
  background: var(--md-sys-color-surface-container-low);
  border-radius: 14px;
  text-align: left;
  transition: transform .12s var(--ease), background .12s;
}
.food-row:active { transform: scale(.98); background: var(--md-sys-color-surface-container-high); }
.food-name { flex: 1; font-size: 14px; font-weight: 500; min-width: 0; }
.food-serving { display: block; font-size: 11px; color: var(--md-sys-color-on-surface-variant); font-weight: 400; margin-top: 1px; }
.food-kcal { font-size: 13px; font-weight: 600; color: var(--md-sys-color-primary); flex: 0 0 auto; }
.food-empty { text-align: center; font-size: 13px; color: var(--md-sys-color-on-surface-variant); padding: 16px 0; }
.custom-box { margin-top: 16px; border-top: 1px solid var(--md-sys-color-outline-variant); padding-top: 14px; }
.custom-row { display: flex; gap: 8px; }
.custom-row input {
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container-low);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  min-width: 0;
}
#custom-name { flex: 1.4; }
#custom-kcal { flex: 1; }
#custom-add { padding: 10px 18px; font-size: 14px; }

/* =====================================================
   Toast / 页内提醒横幅
   ===================================================== */
.toast {
  position: fixed; left: 50%; bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  transform: translate(-50%, 20px);
  background: var(--md-sys-color-on-surface);
  color: var(--md-sys-color-surface);
  font-size: 14px;
  padding: 12px 20px;
  border-radius: 999px;
  opacity: 0; pointer-events: none;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
  z-index: 60;
  max-width: 86vw; text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.notif-banner {
  position: fixed; left: 16px; right: 16px;
  top: calc(env(safe-area-inset-top, 0px) + 10px);
  transform: translateY(-140%);
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
  border-radius: 20px;
  padding: 14px 18px;
  font-size: 14px; line-height: 1.5;
  box-shadow: var(--shadow);
  transition: transform .3s var(--ease);
  z-index: 60;
  max-width: 528px; margin: 0 auto;
}
.notif-banner.show { transform: translateY(0); }

/* =====================================================
   无障碍：减少动态效果
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* =====================================================
   情侣同步（TA 的今天 / 配对卡片）
   ===================================================== */
.dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: var(--md-sys-color-outline);
  display: inline-block; flex: 0 0 auto;
}
.dot.ok { background: #3E9E5C; box-shadow: 0 0 0 3px rgba(62, 158, 92, .18); }

.peer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.peer-status {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--md-sys-color-on-surface-variant);
}
.peer-rings { display: flex; align-items: center; gap: 16px; }
.peer-ring { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 0 0 auto; }
.peer-ring-wrap { position: relative; width: 76px; height: 76px; }
.ring.mini circle { stroke-width: 8; }
.peer-ring-center {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.peer-num { font-size: 15px; font-weight: 700; line-height: 1.1; font-variant-numeric: tabular-nums; }
.peer-sub { font-size: 9px; color: var(--md-sys-color-on-surface-variant); margin-top: 1px; }
.peer-ring-title { font-size: 11px; color: var(--md-sys-color-on-surface-variant); }
.peer-facts { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.peer-meals { font-size: 13px; font-weight: 600; }
.peer-dishes { display: flex; gap: 6px; flex-wrap: wrap; }
.peer-none { font-size: 12px; color: var(--md-sys-color-on-surface-variant); }
.peer-empty {
  font-size: 13px; color: var(--md-sys-color-on-surface-variant);
  text-align: center; padding: 14px 0; line-height: 1.6;
}

.pair-row { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 10px; }
.pair-code-inline { letter-spacing: 1.5px; color: var(--md-sys-color-primary); }
.pair-code-big {
  font-size: 34px; font-weight: 700; letter-spacing: 8px;
  text-align: center;
  padding: 16px 12px 16px 20px;
  background: var(--md-sys-color-surface-container);
  border-radius: 16px;
  margin: 6px 0 12px;
  font-variant-numeric: tabular-nums;
  color: var(--md-sys-color-primary);
  user-select: all; -webkit-user-select: all;
}
.pair-join { display: flex; gap: 8px; margin-top: 12px; }
.pair-join input {
  flex: 1; min-width: 0;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface);
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 20px; font-weight: 600;
  letter-spacing: 6px; text-align: center;
  text-transform: uppercase;
  outline: none;
}
.pair-join input:focus { border-color: var(--md-sys-color-primary); }
.pair-join .btn-primary { padding: 11px 20px; }