:root{
  --paper:#EDEAE2; --card:#FBFAF6; --ink:#1C221F; --sub:#7C857F;
  --jade:#1E7A62; --jade-d:#125946;
  --amber:#D99626; --amber-soft:#F5E7C6;
  --line:#DBD7CC; --danger:#B14E36; --blue:#3B6E86;
  --shadow:0 6px 22px rgba(30,40,35,.10);
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
html,body{margin:0;padding:0;}
body{
  font-family:"PingFang TC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper); color:var(--ink);
  min-height:100vh; min-height:100dvh; line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:520px; margin:0 auto; min-height:100vh; min-height:100dvh; display:flex; flex-direction:column; padding:0 18px calc(70px + env(safe-area-inset-bottom));}

/* header */
header{display:flex; align-items:baseline; justify-content:space-between; padding:20px 2px 10px;}
.brand{font-weight:800; font-size:19px; letter-spacing:.5px;}
.brand .en{color:var(--jade); font-weight:800;}
.stat{font-size:12px; color:var(--sub); text-align:right; line-height:1.35;}
.stat b{color:var(--ink); font-weight:700;}

/* main stage */
main{flex:1; display:flex; flex-direction:column; justify-content:center; padding:6px 0 12px;}
.kicker{font-size:12.5px; color:var(--sub); letter-spacing:.4px; margin-bottom:6px;}

/* slot entry */
.ask h2{font-size:22px; font-weight:800; margin:0 0 16px; letter-spacing:.3px;}
.chips{display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-bottom:12px;}
.chip{
  border:1.5px solid var(--line); background:var(--card); border-radius:14px;
  padding:16px 0; text-align:center; font-size:17px; font-weight:700; cursor:pointer;
  transition:.12s; user-select:none;
}
.chip small{display:block; font-size:11px; color:var(--sub); font-weight:500; margin-top:2px;}
.chip:active{transform:scale(.96);}
.chip.sel{border-color:var(--jade); background:#E7F1ED; color:var(--jade-d);}
.customrow{display:flex; gap:10px; margin-bottom:16px;}
.customrow input{
  flex:1; border:1.5px solid var(--line); border-radius:12px; padding:13px 14px;
  font-size:16px; background:var(--card); color:var(--ink); outline:none; font-family:inherit;
}
.customrow input:focus{border-color:var(--jade);}
.btn{
  border:none; border-radius:14px; padding:16px; width:100%; font-size:17px; font-weight:800;
  cursor:pointer; font-family:inherit; transition:.12s; letter-spacing:.5px;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--jade); color:#fff; box-shadow:var(--shadow);}
.btn-primary:disabled{background:#B9C4BF; box-shadow:none;}
.btn-ghost{background:transparent; color:var(--sub); font-weight:600; box-shadow:none;}
.btn-amber{background:var(--amber); color:#3a2a08;}

/* warn banner (王牌) */
.warn{
  display:flex; gap:10px; align-items:flex-start; background:var(--amber-soft);
  border:1px solid #E7CE93; border-radius:12px; padding:11px 13px; margin-bottom:16px; font-size:13px; color:#6a4e14;
}
.warn .flag{font-size:15px;}
.warn b{color:#5a4110;}

/* CARD */
.card{
  background:var(--card); border-radius:20px; box-shadow:var(--shadow);
  border:1px solid #EAE5D8; padding:22px 20px 20px; position:relative; overflow:hidden;
}
.card::before{content:""; position:absolute; left:0; top:0; bottom:0; width:6px; background:var(--jade);}
.card.shape-atomic::before{background:var(--amber);}
.tagrow{display:flex; align-items:center; gap:8px; margin-bottom:14px;}
.tag{font-size:11.5px; font-weight:700; padding:4px 10px; border-radius:20px; letter-spacing:.3px;}
.tag.divisible{background:#E7F1ED; color:var(--jade-d);}
.tag.atomic{background:var(--amber-soft); color:#7a5713;}
.esttag{font-size:12px; color:var(--sub); margin-left:auto; font-weight:600;}
.card h3{font-size:23px; font-weight:800; margin:2px 0 4px; line-height:1.3;}
.goal{font-size:13px; color:var(--sub); margin:6px 0 2px;}
.goal b{color:var(--jade-d);}
.remain{font-size:12.5px; color:var(--blue); margin-top:6px; font-weight:600;}
.actions{display:grid; grid-template-columns:1fr; gap:9px; margin-top:20px;}
.actions .row2{display:grid; grid-template-columns:1fr 1fr; gap:9px;}
.act{border:1.5px solid var(--line); background:#fff; border-radius:13px; padding:14px; font-size:15px; font-weight:700; cursor:pointer; font-family:inherit; transition:.12s;}
.act:active{transform:scale(.97);}
.act.done{background:var(--jade); color:#fff; border-color:var(--jade); font-size:16px;}

/* settle sheet */
.sheet-bg{position:fixed; inset:0; background:rgba(20,25,22,.42); display:none; align-items:flex-end; justify-content:center; z-index:50;}
.sheet-bg.on{display:flex;}
.sheet{background:var(--paper); width:100%; max-width:520px; border-radius:22px 22px 0 0; padding:22px 20px calc(22px + env(safe-area-inset-bottom)); box-shadow:0 -8px 30px rgba(0,0,0,.18);}
.sheet h4{margin:0 0 4px; font-size:19px; font-weight:800;}
.sheet p{margin:0 0 16px; font-size:13px; color:var(--sub);}
.sheet-task-info{margin-bottom:16px;}
.sheet-goal{font-size:13px; color:var(--sub); margin:4px 0 0;}
.sheet-actions{display:flex; flex-direction:column; gap:8px;}
.sheet-btn{
  border:1.5px solid var(--line); background:var(--card); border-radius:13px;
  padding:14px; font-size:15px; font-weight:700; cursor:pointer; font-family:inherit;
  text-align:left; transition:.12s;
}
.sheet-btn:active{transform:scale(.98);}
.sheet-btn.primary{background:var(--jade); color:#fff; border-color:var(--jade); text-align:center;}
.sheet-btn.danger{color:var(--danger);}
.sheet-btn.ghost{background:transparent; border:none; color:var(--sub); text-align:center; font-weight:600;}

/* celebrate */
.cheer{text-align:center; padding:8px 0 2px;}
.cheer .big{font-size:30px;}
.cheer p{color:var(--jade-d); font-weight:700; font-size:15px; margin:6px 0 0;}

/* bottom nav — fixed */
nav{display:flex; gap:8px; padding:12px 18px calc(16px + env(safe-area-inset-bottom)); border-top:1px solid var(--line);
  position:fixed; bottom:0; left:0; right:0; background:var(--paper); z-index:90; max-width:556px; margin:0 auto; box-sizing:border-box;}
nav button{flex:1; border:none; background:transparent; padding:9px; font-size:13px; color:var(--sub); font-weight:700; cursor:pointer; font-family:inherit; border-radius:10px;}
nav button.on{color:var(--jade-d); background:#E7F1ED;}

/* pool + add views */
.view{display:none;}
.view.on{display:block; padding-top:6px;}
.view h2{font-size:20px; font-weight:800; margin:14px 2px 4px;}
.view .hint{font-size:12.5px; color:var(--sub); margin:0 2px 14px;}
.task{background:var(--card); border:1px solid #EAE5D8; border-radius:14px; padding:13px 14px; margin-bottom:10px; display:flex; gap:12px; align-items:flex-start;}
.task .bar{width:5px; align-self:stretch; border-radius:4px; background:var(--jade); flex:none;}
.task.atomic .bar{background:var(--amber);}
.task .body{flex:1; min-width:0;}
.task .t{font-weight:700; font-size:15.5px;}
.task .meta{font-size:12px; color:var(--sub); margin-top:3px; display:flex; gap:8px; flex-wrap:wrap;}
.task .meta .g{color:var(--jade-d);}
.task{cursor:pointer; transition:background .12s;}
.task:active{background:#f0ede5;}
.task-progress{height:4px; background:#E8E5DD; border-radius:2px; margin-top:6px; overflow:hidden;}
.task-progress.overtime{background:transparent; border:1.5px dashed var(--sub); height:auto; box-sizing:border-box;}
.task-progress-fill{height:100%; border-radius:2px; background:var(--jade); transition:width .3s;}
.task-progress-fill.atomic{background:var(--amber);}
.edit-actions{display:flex; gap:9px;}
.edit-actions .btn{flex:1;}
.edit-progress{color:var(--jade-d)!important; font-weight:600;}
.field{margin-bottom:14px;}
.field label{display:block; font-size:13px; font-weight:700; margin-bottom:6px; color:#3a423e;}
.field input[type=text], .field input[type=number]{width:100%; border:1.5px solid var(--line); border-radius:12px; padding:13px 14px; font-size:16px; background:var(--card); outline:none; font-family:inherit;}
.field input:focus{border-color:var(--jade);}
.shapes{display:grid; grid-template-columns:1fr 1fr; gap:9px;}
.shapeopt{border:1.5px solid var(--line); background:var(--card); border-radius:12px; padding:11px 12px; cursor:pointer;}
.shapeopt.sel{border-color:var(--jade); background:#E7F1ED;}
.shapeopt .st{font-weight:700; font-size:14px;}
.shapeopt .sd{font-size:11px; color:var(--sub); margin-top:2px;}
.empty{text-align:center; color:var(--sub); padding:40px 20px; font-size:14px;}
.tools{display:flex; gap:10px; margin-top:8px;}
.tools button{flex:1; border:1px solid var(--line); background:transparent; color:var(--sub); border-radius:10px; padding:10px; font-size:12.5px; font-weight:600; cursor:pointer; font-family:inherit;}

/* morning frame */
.morning{background:var(--card); border:1px solid #EAE5D8; border-radius:16px; padding:18px 16px; margin-bottom:16px;}
.morning h3{font-size:18px; font-weight:800; margin:0 0 4px;}
.morning .sub{font-size:12.5px; color:var(--sub); margin:0 0 14px;}
.slot-rows{display:flex; flex-direction:column; gap:10px; margin-bottom:14px;}
.slot-row{
  border:1.5px solid var(--line); border-radius:12px; background:var(--card);
  padding:12px; display:flex; flex-direction:column; gap:8px;
}
.slot-row-head{display:flex; align-items:center; justify-content:space-between;}
.slot-row-label{display:flex; align-items:center; gap:6px; font-size:14px; font-weight:600; color:var(--ink);}
.slot-row-label input[type=time]{
  border:1.5px solid var(--line); border-radius:8px; padding:6px 8px;
  font-size:15px; font-weight:700; background:transparent; font-family:inherit;
  outline:none; color:var(--jade-d); width:auto;
}
.slot-row-label input[type=time]:focus{border-color:var(--jade);}
.slot-row .del-slot{border:none; background:transparent; color:var(--sub); font-size:18px; cursor:pointer; padding:4px; line-height:1;}
.dur-chips{display:flex; gap:6px; flex-wrap:wrap;}
.dur-chip{
  flex:1; min-width:0; border:1.5px solid var(--line); background:var(--paper);
  border-radius:9px; padding:8px 0; font-size:13px; font-weight:700;
  cursor:pointer; user-select:none; white-space:nowrap; text-align:center;
}
.dur-chip.sel{border-color:var(--jade); background:#E7F1ED; color:var(--jade-d);}
.add-slot-btn{border:1.5px dashed var(--line); background:transparent; border-radius:10px; padding:10px; width:100%; font-size:13px; font-weight:600; color:var(--sub); cursor:pointer; font-family:inherit; margin-bottom:14px;}
.morning-actions{display:flex; gap:9px;}
.morning-actions .btn{flex:1;}

/* undo toast */
.undo-toast{
  position:fixed; bottom:calc(70px + env(safe-area-inset-bottom)); left:50%; transform:translateX(-50%);
  background:var(--ink); color:#fff; border-radius:12px; padding:10px 16px;
  display:flex; align-items:center; gap:12px; font-size:14px; font-weight:600;
  box-shadow:0 4px 16px rgba(0,0,0,.25); z-index:80;
  animation:toastIn .25s ease;
}
.undo-toast button{
  border:none; background:transparent; color:var(--jade); font-weight:800;
  font-size:14px; cursor:pointer; font-family:inherit; padding:0;
}
@keyframes toastIn{from{opacity:0; transform:translateX(-50%) translateY(10px);} to{opacity:1; transform:translateX(-50%) none;}}

/* recurring task */
.recur-field{margin-bottom:14px;}
.recur-toggle{display:flex; align-items:center; gap:8px; cursor:pointer;}
.recur-toggle input[type=checkbox]{width:20px; height:20px; accent-color:var(--jade); margin:0; cursor:pointer;}
.recur-label{font-weight:700; font-size:14px;}
.recur-hint{font-size:11.5px; color:var(--sub);}
.recur-badge{font-size:11px; color:var(--jade-d); font-weight:700; margin-left:6px; white-space:nowrap;}

/* version footer */
.version{text-align:center; font-size:11px; color:var(--sub); padding:4px 0 calc(8px + env(safe-area-inset-bottom)); letter-spacing:.3px; opacity:.6;}

/* countdown timer view */
.timer-view{
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding:30px 20px 20px; min-height:280px;
}

/* flip clock */
.flip-clock{display:flex; align-items:center; gap:4px; margin:12px 0 10px; user-select:none;}
.flip-colon{font-size:30px; font-weight:800; color:var(--ink); line-height:1; padding-bottom:4px;}
.flip-card{
  position:relative; width:40px; height:58px;
  perspective:200px;
  border-radius:5px;
  overflow:visible;
}
.flip-card .top, .flip-card .bottom, .flip-card .flip-top, .flip-card .flip-bottom{
  position:absolute; left:0; right:0;
  display:flex; align-items:center; justify-content:center;
  font-size:30px; font-weight:800; font-variant-numeric:tabular-nums;
  overflow:hidden; backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
/* static halves */
.flip-card .top{
  top:0; height:50%; border-radius:6px 6px 0 0;
  background:#2A2F2C; color:#F0EDE5;
  align-items:flex-end; padding-bottom:0;
  border-bottom:1px solid rgba(0,0,0,.25);
  z-index:1;
}
.flip-card .top span{transform:translateY(50%);}
.flip-card .bottom{
  bottom:0; height:50%; border-radius:0 0 6px 6px;
  background:#343937; color:#F0EDE5;
  align-items:flex-start; padding-top:0;
  z-index:1;
}
.flip-card .bottom span{transform:translateY(-50%);}
/* animated halves */
.flip-card .flip-top{
  top:0; height:50%; border-radius:6px 6px 0 0;
  background:#2A2F2C; color:#F0EDE5;
  align-items:flex-end;
  border-bottom:1px solid rgba(0,0,0,.25);
  transform-origin:bottom center;
  z-index:3;
}
.flip-card .flip-top span{transform:translateY(50%);}
.flip-card .flip-bottom{
  bottom:0; height:50%; border-radius:0 0 6px 6px;
  background:#343937; color:#F0EDE5;
  align-items:flex-start;
  transform-origin:top center;
  transform:rotateX(90deg);
  z-index:2;
}
.flip-card .flip-bottom span{transform:translateY(-50%);}
/* animation */
.flip-card.flipping .flip-top{
  animation:flipDown .5s ease-in forwards;
}
.flip-card.flipping .flip-bottom{
  animation:flipUp .5s ease-out .25s forwards;
}
@keyframes flipDown{
  0%{transform:rotateX(0deg);}
  100%{transform:rotateX(-90deg);}
}
@keyframes flipUp{
  0%{transform:rotateX(90deg);}
  100%{transform:rotateX(0deg);}
}
.flip-sign{font-size:30px; font-weight:800; color:var(--danger); line-height:1; padding-bottom:4px; min-width:0;}
.flip-sign:empty{display:none;}
.timer-overtime{font-size:13px; color:var(--danger); font-weight:700; margin:0 0 8px; text-align:center;}

/* overtime color shift */
.flip-clock.overtime .flip-card .top{background:#3B1F1A;}
.flip-clock.overtime .flip-card .bottom{background:#46261F;}
.flip-clock.overtime .flip-card .top span,
.flip-clock.overtime .flip-card .bottom span{color:#F2DAD4;}
.flip-clock.overtime .flip-colon{color:var(--danger);}

.timer-task{
  font-size:17px; font-weight:700; text-align:center; margin:0 0 4px; color:var(--ink);
}
.timer-goal{font-size:13px; color:var(--sub); margin:0 0 20px; text-align:center;}
.timer-progress{
  width:100%; height:5px; background:var(--line); border-radius:3px; margin:0 0 24px; overflow:hidden;
}
.timer-progress-bar{
  height:100%; background:var(--jade); border-radius:3px; transition:width 1s linear;
}
.timer-progress-bar.overtime{background:var(--danger); transition:none;}
.timer-actions{display:grid; grid-template-columns:1fr 1fr; gap:10px; width:100%;}
.timer-actions .act.done{grid-column:1; font-size:15px;}
.timer-actions .act.stop{grid-column:2; font-size:15px; color:var(--sub);}

/* records tab (v0.8) */
.rec-wrap{padding-top:6px;}
.rec-card{
  background:var(--card); border:1px solid #EAE5D8; border-radius:16px;
  padding:16px; margin-bottom:14px;
}
.rec-card h3{font-size:16px; font-weight:800; margin:0 0 10px; color:var(--ink);}
.rec-card h3 b{color:var(--jade-d);}
.rec-streak{font-size:13px; font-weight:700; color:var(--amber); margin:0 0 10px;}
.rec-empty{font-size:13px; color:var(--sub); text-align:center; padding:16px 0;}
.rec-list{display:flex; flex-direction:column; gap:6px;}
.rec-item{
  display:flex; align-items:center; gap:8px;
  padding:8px 0; border-bottom:1px solid var(--line);
}
.rec-item:last-child{border-bottom:none;}
.rec-item .bar{width:4px; align-self:stretch; border-radius:3px; background:var(--jade); flex:none;}
.rec-item .bar.atomic{background:var(--amber);}
.rec-title{flex:1; font-size:14px; font-weight:600; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.rec-min{font-size:13px; color:var(--sub); font-weight:700; white-space:nowrap;}
.rec-mark{font-size:13px; font-weight:800; width:16px; text-align:center;}
.rec-mark.done{color:var(--jade);}
.rec-mark.stop{color:var(--sub);}
.rec-mark.manual{color:var(--jade); opacity:.65;}
.rec-shape{font-size:11px; color:var(--sub); white-space:nowrap;}

/* week chart */
.week-chart{
  display:flex; gap:6px; align-items:flex-end;
  padding:18px 0 0;
}
.week-col{
  flex:1; display:flex; flex-direction:column; align-items:center; gap:4px;
}
.week-bar{
  width:100%; border-radius:4px 4px 0 0;
  background:var(--line); position:relative;
  min-height:0; transition:height .3s ease;
}
.week-bar.today{background:var(--jade);}
.week-tip{
  position:absolute; top:-18px; left:50%; transform:translateX(-50%);
  font-size:10px; font-weight:700; color:var(--sub); white-space:nowrap;
}
.week-bar.today .week-tip{color:var(--jade-d);}
.week-label{font-size:11px; color:var(--sub); font-weight:600;}

/* goal summary */
.rec-goals{display:flex; flex-direction:column; gap:6px;}
.rec-goal-row{display:flex; justify-content:space-between; align-items:center; padding:6px 0; border-bottom:1px solid var(--line);}
.rec-goal-row:last-child{border-bottom:none;}
.rec-goal-name{font-size:14px; font-weight:600; color:var(--jade-d);}
.rec-goal-stat{font-size:12px; color:var(--sub); font-weight:600; white-space:nowrap;}

/* history by date */
.rec-day{margin-top:10px;}
.rec-day h4{font-size:13px; font-weight:700; color:var(--sub); margin:0 0 6px; letter-spacing:.3px;}

/* update bar */
.update-bar{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:var(--jade); color:#fff; text-align:center;
  padding:10px 16px; font-size:14px; font-weight:700; cursor:pointer;
  animation:slideDown .3s ease;
}
@keyframes slideDown{from{transform:translateY(-100%);} to{transform:none;}}

.fade{animation:fade .28s ease;}
@keyframes fade{from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:none;}}
@media (prefers-reduced-motion:reduce){.fade{animation:none;}}