:root{
  color-scheme:light;
  --bg:#f4f5f7;
  --panel:#fff;
  --card:#fff;
  --text:#17191e;
  --muted:#737982;
  --border:#d8dce2;
  --strong:#8c939d;
  --accent:#30343a;
  --soft:#e8eaed;
  --softer:#f2f3f5;
  --danger:#b42318;
  --danger-bg:#fff1ef;
  --shadow:0 14px 38px rgba(0,0,0,.10);
}
html[data-theme="dark"]{
  color-scheme:dark;
  --bg:#121316;
  --panel:#1b1d21;
  --card:#23262b;
  --text:#f4f5f6;
  --muted:#a8afb8;
  --border:#393e46;
  --strong:#7d8591;
  --accent:#e2e5e9;
  --soft:#34383f;
  --softer:#292d33;
  --danger:#ff928a;
  --danger-bg:#432522;
  --shadow:0 18px 48px rgba(0,0,0,.38);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",Roboto,sans-serif;background:var(--bg);color:var(--text)}
button,input,select{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.muted{color:var(--muted)}
h1,h2,h3,p{margin-top:0}
h1{margin-bottom:6px}
h2{font-size:1.18rem;margin-bottom:3px}
h3{margin-bottom:4px}
.eyebrow{display:block;color:var(--muted);font-size:.76rem;margin-bottom:5px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-card{width:min(420px,100%);padding:28px;background:var(--panel);border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow)}
.brand-icon{width:82px;height:82px;display:block;object-fit:cover;border-radius:19px;margin:0 0 17px;box-shadow:0 7px 18px rgba(0,0,0,.18)}

.app{width:min(1000px,100%);margin:0 auto;padding:16px 16px 34px}
.sticky-app-header{
  position:sticky;
  top:max(0px,env(safe-area-inset-top));
  z-index:70;
  background:var(--bg);
  padding-bottom:1px;
}
.topbar,.panel{background:var(--panel);border:1px solid var(--border);border-radius:18px}
.topbar{
  position:relative;
  padding:14px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:end;
  gap:12px;
}
.person-area{min-width:0}
.person-switch{display:flex;gap:7px;flex-wrap:wrap}
.person-button{min-height:36px;min-width:68px;padding:5px 14px;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:10px;font-weight:720}
.person-button.active{background:var(--soft);border:2px solid var(--strong);font-weight:900;box-shadow:0 2px 7px rgba(0,0,0,.06)}

.settings-wrap{position:relative;align-self:end}
.settings-button{
  width:38px;
  height:38px;
  padding:0;
  display:grid;
  place-items:center;
  border:1px solid var(--border);
  border-radius:11px;
  background:var(--card);
  color:var(--text);
}
.settings-button:hover,.settings-button:focus-visible,.settings-button[aria-expanded="true"]{
  background:var(--soft);
  border-color:var(--strong);
}
.settings-icon{
  width:20px;
  height:20px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.settings-menu{
  position:absolute;
  right:0;
  top:calc(100% + 8px);
  z-index:80;
  width:min(260px,calc(100vw - 32px));
  padding:12px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:14px;
  box-shadow:var(--shadow);
}
.settings-title{font-size:.95rem;font-weight:900;margin-bottom:10px}
.settings-field{gap:6px;margin-bottom:8px}
.settings-field>span{font-size:.78rem;color:var(--muted)}
.settings-field select{min-height:40px}
.settings-action{
  width:100%;
  min-height:40px;
  margin-top:7px;
  padding:7px 10px;
  text-align:left;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--card);
  color:var(--text);
  font-weight:700;
}
.settings-action:hover,.settings-action:focus-visible{background:var(--soft)}
.settings-logout{color:var(--danger)}
.settings-version{
  margin-top:11px;
  padding-top:9px;
  border-top:1px solid var(--border);
  color:var(--muted);
  font-size:.68rem;
  text-align:right;
}
.add-person-row{
  grid-column:1/-1;
  width:100%;
  display:flex;
  gap:8px;
}
.add-person-row input{flex:1}

.main-tabs{
  position:relative;
  z-index:1;
  display:flex;
  gap:8px;
  margin:10px 0 16px;
  padding:7px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:14px;
  box-shadow:0 4px 14px rgba(0,0,0,.06);
}
.main-tab{flex:1;min-height:42px;border:1px solid transparent;background:transparent;color:var(--text);border-radius:10px;font-weight:650}
.main-tab.active{background:var(--soft);border:2px solid var(--strong);font-weight:900}

.content,.page,.stack{display:flex;flex-direction:column;gap:14px}
.panel{padding:16px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.section-head.wrap{flex-wrap:wrap}

.summary-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:14px}
.summary-grid.two{grid-template-columns:repeat(2,1fr)}
.summary-card,.category-card,.record-card,.chart-card,.week-card{border:1px solid var(--border);background:var(--card);border-radius:14px}
.summary-card{padding:13px}
.summary-card span,.summary-card small{display:block;color:var(--muted);font-size:.83rem}
.summary-card strong{display:block;font-size:1.28rem;line-height:1.2;margin-top:5px}
.summary-card small{margin-top:4px}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
.category-card{padding:12px}
.category-card strong,.category-card span{display:block}
.category-card span{margin-top:4px;color:var(--muted);font-size:.85rem;line-height:1.45}

button.ghost,button.secondary,button.danger,.mini,.add-small,.add-item-small,.seg{border-radius:10px}
.ghost,.secondary,.mini,.seg,.add-item-small{border:1px solid var(--border);background:var(--card);color:var(--text)}
.ghost,.secondary,.danger{min-height:42px;padding:7px 11px}
.ghost.small,.secondary.small{min-height:34px;padding:5px 9px;font-size:.82rem}
.ghost.full{width:100%;margin-top:12px}
.secondary{background:var(--soft);font-weight:750}
.danger{border:1px solid color-mix(in srgb,var(--danger) 45%,var(--border));background:var(--danger-bg);color:var(--danger);font-weight:800}
.primary{border:2px solid var(--accent);border-radius:12px;background:var(--accent);color:var(--panel);font-weight:900;padding:10px 14px}
html[data-theme="dark"] .primary{color:#17191e;background:#e8eaed;border-color:#e8eaed}
.primary.large{min-height:49px}
.add-small{min-height:33px;border:1px solid var(--strong);background:var(--soft);color:var(--text);font-weight:850;padding:5px 9px;font-size:.82rem}
.add-item-small{min-height:31px;padding:4px 8px;font-size:.76rem;font-weight:750;white-space:nowrap}
.mini{min-height:31px;padding:4px 7px;font-size:.77rem}
.icon-btn{min-width:38px}

input,select{width:100%;min-height:44px;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:11px;padding:9px 10px;font-size:16px;outline:none}
input:focus,select:focus{border-color:var(--strong);box-shadow:0 0 0 3px color-mix(in srgb,var(--strong) 20%,transparent)}
label{display:flex;flex-direction:column;gap:6px;font-size:.9rem;font-weight:650}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.label-title{display:block;font-size:.9rem;font-weight:750;margin-bottom:7px}
.field-help{font-size:.76rem;color:var(--muted);font-weight:500}

.segmented{display:flex;gap:6px}
.seg{min-height:39px;padding:6px 10px;white-space:nowrap}
.seg.active{border:2px solid var(--strong);background:var(--soft);font-weight:850}
.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.filter-row select{width:auto;min-width:90px}
.filter-row.compact{margin-top:0}
.control-groups{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.range-scroll{display:flex;gap:6px;margin-top:9px;overflow-x:auto;padding-bottom:2px}

.record-list{display:flex;flex-direction:column;gap:9px;margin-top:12px}
.record-card{padding:12px}
.record-top{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
.record-title{font-weight:900;margin-top:2px}
.record-time{font-size:.78rem;color:var(--muted)}
.record-location{color:var(--muted);font-size:.87rem;margin-top:4px}
.record-meta{font-size:.87rem;margin-top:5px}
.record-actions{display:flex;gap:5px;flex-shrink:0}
.record-group{margin-top:10px;padding-top:9px;border-top:1px dashed var(--border)}
.record-group:first-of-type{border-top:0;padding-top:0}
.record-group-title{font-size:.83rem;font-weight:900;margin-bottom:6px}
.record-items{display:grid;gap:6px}
.item-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--border);background:var(--softer);border-radius:9px;padding:7px 9px;font-size:.86rem}
.item-value{text-align:right;font-weight:760}
.record-footer{font-size:.85rem;font-weight:760;margin-top:7px}
.empty{padding:18px;border:1px dashed var(--border);border-radius:12px;text-align:center;color:var(--muted)}

.exercise-section{border-top:1px solid var(--border);padding-top:16px;margin-top:2px}
.exercise-section-title{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:9px}
.exercise-section-title strong,.exercise-section-title small{display:block}
.exercise-section-title small{color:var(--muted);font-size:.77rem;margin-top:3px}
.choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.choice-wrap{position:relative;min-width:0}
.choice{width:100%;min-height:47px;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:11px;padding:8px;display:flex;align-items:center;justify-content:center;gap:6px;text-align:center}
.choice.selected{background:var(--soft);border:2px solid var(--strong);font-weight:850}
.choice input{width:auto;min-height:auto}
.choice-wrap.custom .choice{padding-left:36px;padding-right:36px}
.manage-item{position:absolute;right:5px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:8px;border:1px solid var(--border);background:var(--softer);color:var(--muted);padding:0;display:grid;place-items:center;z-index:2}
.manage-item:hover,.manage-item:focus-visible{border-color:var(--strong);color:var(--text);background:var(--soft)}
.pencil-icon{width:15px;height:15px;display:block;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.dynamic-detail{margin-top:10px}
.detail-card{border:1px solid var(--border);border-radius:12px;padding:11px;background:var(--softer)}
.detail-card-title{font-weight:900}
.top-gap{margin-top:10px}
.body-settings{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.check-row{flex-direction:row;align-items:center;font-weight:600}
.check-row input{width:auto;min-height:auto}
.individual-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.duration-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.duration-grid label span,.metric-grid label span{font-size:.78rem;color:var(--muted)}
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin-top:10px}
.stack-sm{display:flex;flex-direction:column;gap:8px}
.selection-summary{background:var(--soft);border:1px solid var(--strong);border-radius:12px;padding:10px 11px;font-size:.87rem;font-weight:700}
.hint{font-size:.82rem;color:var(--muted);margin-top:7px}
.form-message{min-height:18px;font-size:.85rem;color:var(--danger)}

.chart-card,.week-card{margin-top:14px;padding:12px}
.chart-head{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}
.chart-wrap{height:250px;margin-top:8px;overflow:hidden}
.chart-wrap svg{width:100%;height:100%}
.chart-point{cursor:pointer}
.chart-empty{height:100%;display:grid;place-items:center;color:var(--muted)}
.table-scroll{overflow-x:auto}
.week-table{width:100%;border-collapse:collapse;min-width:590px}
.week-table th,.week-table td{padding:8px;text-align:center;border-bottom:1px solid var(--border);font-size:.82rem}
.week-table th:first-child,.week-table td:first-child{text-align:left;font-weight:750}
.weight-history{margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}

dialog{border:0;padding:0;background:transparent;max-width:none;color:var(--text)}
dialog::backdrop{background:rgba(10,11,13,.55)}
.editor-dialog{width:min(780px,calc(100% - 24px));max-height:calc(100vh - 24px);margin:auto}
.editor-shell{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:17px;max-height:calc(100vh - 24px);overflow:auto;box-shadow:var(--shadow)}
.editor-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:14px}
.compact-head{margin-bottom:12px}
.choice-dialog,.confirm-dialog{width:min(430px,calc(100% - 28px));margin:auto}
.choice-dialog form,.choice-dialog .dialog-card,.confirm-dialog form{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow)}
.dialog-choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.choice-big{min-height:86px;border:2px solid var(--border);background:var(--card);color:var(--text);border-radius:14px;font-weight:850}
.custom-option-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}
.option-card{padding:9px;border:1px solid var(--border);border-radius:10px;background:var(--softer)}
.info-box{padding:11px;border:1px solid var(--border);border-radius:11px;background:var(--softer);font-size:.85rem;color:var(--muted);line-height:1.5}
.custom-dialog-actions{display:flex;gap:8px;justify-content:flex-end}
.custom-dialog-actions .danger{margin-right:auto}
.confirm-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:100;background:#111318;color:#fff;padding:9px 13px;border-radius:10px;box-shadow:var(--shadow);font-size:.87rem}

@media(max-width:820px){
  .summary-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:700px){
  .app{padding:10px 10px 24px}
  .panel{padding:13px}
  .summary-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:1fr}
  .choice-grid{grid-template-columns:repeat(2,1fr)}
  .individual-grid{grid-template-columns:1fr}

  /* iPhone / mobile editor:
     dialog itself stays fixed to the dynamic viewport;
     only the inner shell scrolls, so both first and last fields are reachable. */
  .editor-dialog{
    position:fixed;
    inset:0;
    width:100%;
    height:100vh;
    height:100dvh;
    max-height:100dvh;
    margin:0;
    padding:0;
    overflow:hidden;
  }
  .editor-shell{
    width:100%;
    height:100%;
    min-height:0;
    max-height:none;
    border-radius:0;
    overflow-y:auto;
    overflow-x:hidden;
    -webkit-overflow-scrolling:touch;
    overscroll-behavior-y:contain;
    padding-left:16px;
    padding-right:16px;
    padding-top:max(16px,env(safe-area-inset-top));
    padding-bottom:max(28px,calc(16px + env(safe-area-inset-bottom)));
    scroll-padding-top:max(16px,env(safe-area-inset-top));
    scroll-padding-bottom:max(28px,calc(16px + env(safe-area-inset-bottom)));
  }

  /* Keep all Monday-Sunday columns visible on iPhone without horizontal scrolling. */
  .week-card{padding:11px 7px}
  .table-scroll{overflow-x:visible}
  .week-table{
    width:100%;
    min-width:0;
    table-layout:fixed;
    font-variant-numeric:tabular-nums;
  }
  .week-table th,.week-table td{
    padding:7px 1px;
    font-size:clamp(.64rem,2.7vw,.74rem);
    white-space:nowrap;
  }
  .week-table th:first-child,.week-table td:first-child{
    width:43px;
    padding-left:2px;
    padding-right:2px;
  }
}
@media(max-width:520px){
  .topbar{
    grid-template-columns:minmax(0,1fr) auto;
    align-items:end;
    gap:9px;
  }
  .person-area{width:auto;min-width:0}
  .person-switch{width:100%;flex-wrap:wrap}
  .person-button{flex:1 1 64px;min-width:0;padding-left:9px;padding-right:9px}
  .settings-wrap{align-self:end}
  .exercise-section-title{align-items:center}
  .add-item-small{font-size:.72rem}
}
@media(max-width:450px){
  .two-col,.metric-grid{grid-template-columns:1fr}
  .dialog-choice-grid,.custom-option-grid{grid-template-columns:1fr}
}

.today-summary-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px;
  margin-top:14px;
}
@media(max-width:700px){
  .today-summary-grid{grid-template-columns:repeat(2,1fr)}
}



/* v2609105 - simplified weight trend period selector */
.weight-periods{
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:6px;
  overflow:visible;
}
.weight-periods .seg{
  min-width:0;
  padding-left:6px;
  padding-right:6px;
}
@media(max-width:520px){
  .weight-periods{gap:4px}
  .weight-periods .seg{
    padding-left:2px;
    padding-right:2px;
    font-size:.76rem;
  }
}

@media(max-width:520px){
  .sticky-app-header{
    top:max(0px,env(safe-area-inset-top));
  }
  .sticky-app-header .topbar{
    padding-top:10px;
    padding-bottom:10px;
  }
  .sticky-app-header .main-tabs{
    margin-top:7px;
    margin-bottom:10px;
  }
}

/* v2609112 - homepage single-day record browser */
.day-record-head{
  align-items:flex-start;
}
.day-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-top:6px;
  flex-wrap:wrap;
}
.day-nav-btn{
  width:34px;
  height:34px;
  min-height:34px;
  padding:0;
  display:grid;
  place-items:center;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--card);
  color:var(--text);
  font-size:1.35rem;
  line-height:1;
}
.day-nav-btn:disabled{
  opacity:.35;
  cursor:default;
}
.day-date-control{
  position:relative;
  display:inline-flex;
  min-width:150px;
}
.day-date-button{
  width:100%;
  min-height:34px;
  padding:5px 10px;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--card);
  color:var(--text);
  font-weight:760;
  white-space:nowrap;
}
.day-date-picker{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  opacity:0;
  cursor:pointer;
}
.day-date-control:hover .day-date-button,
.day-date-control:focus-within .day-date-button,
.day-nav-btn:hover:not(:disabled),
.day-nav-btn:focus-visible:not(:disabled){
  background:var(--soft);
  border-color:var(--strong);
}
@media(max-width:520px){
  .day-record-head{gap:8px}
  .day-nav{gap:4px}
  .day-nav-btn{
    width:32px;
    height:32px;
    min-height:32px;
  }
  .day-date-control{
    min-width:132px;
  }
  .day-date-button{
    min-height:32px;
    padding-left:6px;
    padding-right:6px;
    font-size:.76rem;
  }
  #backToday{
    min-height:32px;
    padding-left:7px;
    padding-right:7px;
    font-size:.74rem;
  }
}