/* ============ 基础 ============ */
:root{
  --bg:#0f1720; --bg2:#151f2b; --card:#1a2532; --card2:#20303f;
  --line:#2a3a4b; --txt:#e6edf3; --txt2:#94a7bb; --txt3:#6b7f94;
  --accent:#3ddc97; --accent-dim:rgba(61,220,151,.14);
  --w:#f2c14e; --f:#ff7a5c; --m:#5aa9ff;
  --danger:#ff5f57; --warn:#f2c14e;
  --r:14px; --pad:16px;
  --safe-t:env(safe-area-inset-top);
  --safe-b:env(safe-area-inset-bottom);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html,body{margin:0;padding:0;height:100%}
body{
  background:var(--bg); color:var(--txt);
  font:-apple-system-font,BlinkMacSystemFont,"SF Pro SC","PingFang SC","HarmonyOS Sans SC",system-ui,sans-serif;
  font-size:15px; line-height:1.5;
  overscroll-behavior-y:none;
  -webkit-font-smoothing:antialiased;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
/* 统一过渡层：交互元素状态变化都走动画 */
.btn,.chip,.pill,.switch,.switch::after,.icon-btn,.check-go,.range-tab,.phase-chip,
.tab,.legend-item,.tag-auto,.metric-cell,.check-item,.card,.goal,.bar>i{
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,
             opacity .2s ease,transform .18s ease,width .35s cubic-bezier(.3,.8,.4,1),
             box-shadow .2s ease;
}
.btn:active,.icon-btn:active,.check-go:active,.range-tab:active,.chip:active{transform:scale(.96)}
.card,.metric-cell,.goal{animation:cardIn .26s ease-out backwards}
@keyframes cardIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.update-bar{animation:barIn .3s cubic-bezier(.3,.9,.4,1)}
@keyframes barIn{from{opacity:0;transform:translate(-50%,-14px)}to{opacity:1;transform:translate(-50%,0)}}
.fit-tip{transition:opacity .16s ease,transform .16s ease}
.fit-tip .tip-go{
  display:block;width:100%;margin-top:6px;padding:4px 0;border-radius:7px;
  background:var(--accent);color:#06231a;font-size:11px;font-weight:600;
}
h1,h2,h3,h4{margin:0;font-weight:650}
#app{display:flex;flex-direction:column;height:100dvh;max-width:560px;margin:0 auto}

/* ============ 顶栏 ============ */
.topbar{
  display:flex;align-items:center;gap:10px;
  padding:calc(var(--safe-t) + 10px) var(--pad) 10px;
  background:var(--bg);border-bottom:1px solid var(--line);
  flex:none;
}
.topbar-phase{
  flex:1;font-size:13px;color:var(--txt2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.topbar-phase b{color:var(--accent);font-weight:600}
.icon-btn{
  width:32px;height:32px;border-radius:9px;flex:none;
  background:var(--card);color:var(--txt2);font-size:15px;
  display:grid;place-items:center;
}

/* ============ 主体 ============ */
.view{
  flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;
  padding:var(--pad) var(--pad) 24px;
  overscroll-behavior:contain;
}
.view.enter{animation:viewIn .18s ease-out}
@keyframes viewIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.tab{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:5px 0;color:var(--txt3);font-size:11px;border-radius:10px;
  transition:color .18s ease;
}
.tab-ico{font-size:16px;line-height:1;transition:transform .18s ease}
.tab.on{color:var(--accent)}
.tab.active{color:var(--accent)}
.tab.active .tab-ico{transform:scale(1.12)}
.section{margin-bottom:20px}
.section-title{
  font-size:12px;color:var(--txt3);letter-spacing:.5px;
  margin:0 0 8px;display:flex;align-items:center;justify-content:space-between;
}
.card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:14px;margin-bottom:10px;
}
.card.tight{padding:10px 14px}
.row{display:flex;align-items:center;gap:10px}
.row + .row{margin-top:10px}
.spacer{flex:1}
.muted{color:var(--txt2);font-size:13px}
.tiny{font-size:11px;color:var(--txt3)}
.pill{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 8px;border-radius:999px;font-size:11px;
  background:var(--card2);color:var(--txt2);
}
.pill.on{background:var(--accent-dim);color:var(--accent)}
.pill.warn{background:rgba(242,193,78,.15);color:var(--warn)}

/* ============ 指标快录 ============ */
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.metric-cell{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:10px 12px;
}
.metric-cell label{
  display:block;font-size:11px;color:var(--txt3);margin-bottom:2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.metric-cell .val-row{display:flex;align-items:baseline;gap:4px}
.metric-cell input{
  width:100%;min-width:0;background:none;border:0;outline:none;
  font-size:22px;font-weight:650;color:var(--txt);padding:0;
  font-variant-numeric:tabular-nums;
}
.metric-cell input::placeholder{color:var(--txt3);font-weight:400}
.metric-cell .unit{font-size:11px;color:var(--txt3);flex:none}
.metric-cell .delta{font-size:11px;margin-top:2px;min-height:15px;font-variant-numeric:tabular-nums}
.delta.up{color:var(--accent)} .delta.down{color:var(--f)} .delta.flat{color:var(--txt3)}
.metric-cell.saved{border-color:rgba(61,220,151,.4)}
.metric-cell.auto{border-color:rgba(90,169,255,.5);background:rgba(90,169,255,.06)}
.tag-auto{
  display:inline-block;margin-left:5px;padding:0 5px;border-radius:5px;
  font-size:9px;line-height:14px;vertical-align:1px;
  background:rgba(90,169,255,.18);color:var(--m);font-weight:500;
}

/* ============ 打卡清单 ============ */
.check-item{
  display:flex;align-items:center;gap:12px;
  padding:11px 0;border-bottom:1px solid var(--line);
}
.check-item:last-child{border-bottom:0}
.check-ico{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:var(--card2);display:grid;place-items:center;font-size:14px;
}
.check-main{flex:1;min-width:0}
.check-name{font-size:14px}
.check-val{font-size:12px;color:var(--txt3);font-variant-numeric:tabular-nums}
.check-val.filled{color:var(--txt2)}
.check-go{
  width:28px;height:28px;border-radius:8px;flex:none;
  background:var(--card2);color:var(--txt2);font-size:13px;
  display:grid;place-items:center;
}
.check-item.done .check-ico{background:var(--accent-dim);color:var(--accent)}
.check-item.done .check-name::after{content:" ✓";color:var(--accent);font-size:12px}

/* 进度条 */
.bar{height:5px;border-radius:3px;background:var(--card2);overflow:hidden;margin-top:6px}
.bar>i{display:block;height:100%;background:var(--accent);border-radius:3px;transition:width .3s}
.bar>i.over{background:var(--w)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:11px 16px;border-radius:11px;font-size:14px;font-weight:600;
  background:var(--card2);color:var(--txt);
}
.btn:active{opacity:.7}
.btn.primary{background:var(--accent);color:#06231a}
.btn.ghost{background:none;border:1px solid var(--line);color:var(--txt2)}
.btn.sm{padding:6px 11px;font-size:12px;border-radius:9px}
.btn.block{width:100%}
.btn.danger{background:rgba(255,95,87,.14);color:var(--danger)}
.btn-row{display:flex;gap:8px;margin-top:12px}
.btn-row .btn{flex:1}

/* ============ 表单 ============ */
.field{margin-bottom:12px}
.field > label{display:block;font-size:12px;color:var(--txt3);margin-bottom:5px}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg2);border:1px solid var(--line);
  border-radius:10px;padding:10px 12px;font-size:16px;outline:none;
  color:var(--txt);
}
.field textarea{min-height:70px;resize:vertical;font-size:15px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}
.field .hint{font-size:11px;color:var(--txt3);margin-top:4px}
.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{
  padding:6px 11px;border-radius:999px;font-size:13px;
  background:var(--bg2);border:1px solid var(--line);color:var(--txt2);
}
.chip.on{background:var(--accent-dim);border-color:transparent;color:var(--accent)}
.switch{
  width:42px;height:25px;border-radius:999px;background:var(--card2);
  position:relative;flex:none;transition:background .2s;
}
.switch::after{
  content:"";position:absolute;top:3px;left:3px;width:19px;height:19px;
  border-radius:50%;background:var(--txt3);transition:.2s;
}
.switch.on{background:var(--accent-dim)}
.switch.on::after{left:20px;background:var(--accent)}

/* ============ 趋势图 ============ */
.range-tabs{display:flex;gap:6px;margin-bottom:12px;overflow-x:auto;padding-bottom:2px}
.range-tabs::-webkit-scrollbar{display:none}
.range-tab{
  padding:5px 12px;border-radius:9px;font-size:12px;flex:none;
  background:var(--card);color:var(--txt3);border:1px solid transparent;
}
.range-tab.on{background:var(--accent-dim);color:var(--accent)}
.chart-wrap{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:10px 6px 6px;margin-bottom:10px;
}
.chart-wrap svg{display:block;width:100%;height:auto;touch-action:pan-y}
.legend{display:flex;flex-wrap:wrap;gap:4px 12px;padding:6px 8px 2px}
.legend-item{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--txt2)}
.legend-dot{width:9px;height:9px;border-radius:50%;flex:none}
.toggle-list .check-item{cursor:pointer}
.empty-tip{
  text-align:center;padding:34px 16px;color:var(--txt3);font-size:13px;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r);
}

/* ============ 目标卡 ============ */
.goal{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:12px 14px;margin-bottom:10px;
}
.goal-head{display:flex;align-items:baseline;gap:8px}
.goal-name{font-size:14px;font-weight:600;flex:1}
.goal-pct{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--accent)}
.goal-pct.neg{color:var(--danger)}
.goal-meta{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:11px;color:var(--txt3);margin-top:7px}
.goal-warn{
  margin-top:8px;padding:7px 10px;border-radius:9px;font-size:12px;
  background:rgba(242,193,78,.12);color:var(--warn);
}
.phase-chip{
  display:inline-flex;align-items:center;gap:5px;padding:3px 9px;
  border-radius:999px;font-size:11px;background:var(--card2);color:var(--txt2);
}
.phase-chip.fat_loss{background:rgba(255,122,92,.15);color:var(--f)}
.phase-chip.muscle_gain{background:rgba(90,169,255,.15);color:var(--m)}
.phase-chip.maintain{background:var(--accent-dim);color:var(--accent)}

/* ============ Tabbar ============ */
.tabbar{
  display:flex;flex:none;padding:6px 8px calc(var(--safe-b) + 6px);
  background:var(--bg2);border-top:1px solid var(--line);
}

/* ============ Sheet ============ */
.sheet{position:fixed;inset:0;z-index:60;display:none;align-items:flex-end}
.sheet.on,.sheet.out{display:flex}
.sheet-mask{position:absolute;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(2px);opacity:0;transition:opacity .22s ease}
.sheet.on .sheet-mask{opacity:1}
.sheet-body{
  position:relative;width:100%;max-width:560px;margin:0 auto;
  background:var(--bg2);border-radius:20px 20px 0 0;
  padding:14px var(--pad) calc(var(--safe-b) + 18px);
  max-height:86dvh;display:flex;flex-direction:column;
  transform:translateY(100%);transition:transform .26s cubic-bezier(.3,.8,.4,1);
}
.sheet.on .sheet-body{transform:none}
.sheet.out .sheet-mask{opacity:0}
.sheet-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.sheet-head h3{flex:1;font-size:16px}
.sheet-content{overflow-y:auto;-webkit-overflow-scrolling:touch;margin:0 calc(var(--pad) * -1);padding:0 var(--pad)}

/* ============ Toast / Update ============ */
.toast{
  position:fixed;left:50%;bottom:calc(var(--safe-b) + 76px);
  transform:translateX(-50%);z-index:80;
  background:#000;color:#fff;padding:9px 16px;border-radius:999px;
  font-size:13px;max-width:88vw;display:none;
  box-shadow:0 6px 22px rgba(0,0,0,.5);
}
.toast.on{display:block;animation:toastIn .2s ease-out}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}
.update-bar{
  position:fixed;top:calc(var(--safe-t) + 6px);left:50%;transform:translateX(-50%);
  z-index:90;display:none;align-items:center;gap:10px;
  background:var(--accent);color:#06231a;padding:8px 12px;border-radius:999px;
  font-size:13px;font-weight:600;box-shadow:0 6px 20px rgba(0,0,0,.4);
}
.update-bar.on{display:flex}
.update-bar button{background:rgba(0,0,0,.22);color:#fff;padding:3px 10px;border-radius:999px;font-size:12px}

.streak{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--txt2)}
.streak b{color:var(--accent);font-size:15px;font-variant-numeric:tabular-nums}

.mini-cal{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.mini-day{
  aspect-ratio:1;border-radius:8px;background:var(--bg2);
  display:grid;place-items:center;font-size:11px;color:var(--txt3);
  position:relative;font-variant-numeric:tabular-nums;
}
.mini-day.hdr{background:none;color:var(--txt3);font-size:10px}
.mini-day.has{background:var(--accent-dim);color:var(--accent)}
.mini-day.part{background:rgba(242,193,78,.16);color:var(--warn)}
.mini-day.today{outline:1.5px solid var(--txt2)}
.mini-day.future{opacity:.35}

.kv{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.kv:last-child{border-bottom:0}
.kv span:last-child{color:var(--txt2);font-variant-numeric:tabular-nums;text-align:right}

@media (min-width:561px){
  #app{border-left:1px solid var(--line);border-right:1px solid var(--line)}
  .metric-grid{grid-template-columns:repeat(4,1fr)}
}
@media (prefers-reduced-motion:reduce){
  *,*::after,*::before{animation-duration:.01ms!important;transition-duration:.01ms!important}
}