/* Layout: one centered column — tabs, summary strip, add bar, then project cards with per-item step trackers, task groups by due date, or settings */
:root{
  color-scheme:light;
  --bg:#f3f6f5; --panel:#ffffff; --fg:#14211e; --muted:#5d6f6a; --line:#dbe4e1;
  --accent:#1d6b5a; --accent-soft:#e1efeb; --on-accent:#ffffff;
  --bad:#c0392b; --bad-soft:#fbe9e7; --warn:#b7791f; --warn-soft:#fdf3e1; --ok:#2f855a; --ok-soft:#e3f3ea;
  --c-red:#c8102e; --c-blue:#2b6cb0; --c-green:#5f8a1e; --c-purple:#7b5ea7; --c-orange:#d26a12; --c-teal:#13878a; --c-pink:#c2407a; --c-gray:#7a8784;
  --font-body:"IBM Plex Sans Thai",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-display:"Noto Serif Thai","IBM Plex Sans Thai",Georgia,serif;
  --r:10px;
}
@media (prefers-color-scheme: dark){:root{
  color-scheme:dark;
  --bg:#0f1715; --panel:#16211e; --fg:#e4ece9; --muted:#93a59f; --line:#26332f;
  --accent:#5cc2a6; --accent-soft:#1a3029; --on-accent:#0b1412;
  --bad:#f08374; --bad-soft:#341b18; --warn:#e3b55e; --warn-soft:#30260f; --ok:#6fcf97; --ok-soft:#173023;
  --c-red:#ff6b7f; --c-blue:#6fa8e8; --c-green:#a5c95a; --c-purple:#b49be0; --c-orange:#f2a05a; --c-teal:#5cc8c8; --c-pink:#f08bb8; --c-gray:#a3b0ac}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-body);font-size:15px;line-height:1.5;-webkit-tap-highlight-color:transparent}
.wrap{max-width:780px;margin:0 auto;padding-top:calc(24px + env(safe-area-inset-top,0px));padding-bottom:calc(64px + env(safe-area-inset-bottom,0px));padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));display:flex;flex-direction:column;gap:18px}
header{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
h1{font-family:var(--font-display);font-size:28px;margin:0;text-wrap:balance}
h3{margin:0;font-size:16px}
.today{color:var(--muted);font-size:14px}
.save{font-size:12px;color:var(--muted)}
.save.err{color:var(--bad)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);overflow-x:auto}
.tab{font:inherit;font-weight:600;background:none;border:0;border-bottom:3px solid transparent;color:var(--muted);padding:8px 14px;cursor:pointer;margin-bottom:-1px;white-space:nowrap}
.tab[aria-selected="true"]{color:var(--fg);border-bottom-color:var(--accent)}
.tab .cnt{font-weight:500;font-variant-numeric:tabular-nums}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.stats:empty{display:none}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:10px 12px;display:flex;flex-direction:column;gap:2px;cursor:pointer;text-align:left;font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.stat .n{font-family:var(--font-display);font-size:26px;line-height:1.1;font-variant-numeric:tabular-nums}
.stat .l{font-size:12px;color:var(--muted);letter-spacing:.02em}
.stat.bad .n{color:var(--bad)} .stat.warn .n{color:var(--warn)} .stat.ok .n{color:var(--ok)}
@media (max-width:480px){.stats{grid-template-columns:repeat(2,1fr)}}
form.add,.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:12px;display:flex;flex-direction:column;gap:10px}
.panel{padding:14px 16px;gap:12px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.row.end{justify-content:flex-end}
.grow{flex:1 1 220px}
input,select,textarea{font:inherit;font-size:16px;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;min-width:0}
textarea{resize:vertical;min-height:60px}
.btn{font:inherit;border:0;border-radius:8px;padding:8px 16px;background:var(--accent);color:var(--on-accent);font-weight:600;cursor:pointer;text-decoration:none;display:inline-block}
.btn.sm{padding:5px 12px;font-size:13px}
.btn.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);font-weight:500}
.btn.danger{background:var(--bad);color:var(--bg)}
.btn:disabled{opacity:.4;cursor:default}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--panel);color:var(--fg);border-radius:999px;padding:4px 12px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.icon{font:inherit;font-size:13px;background:none;border:0;color:var(--muted);cursor:pointer;padding:4px 6px;border-radius:6px}
.icon:hover{background:var(--bg);color:var(--fg)}
.pill{font-size:11px;border-radius:999px;padding:1px 8px;background:var(--accent-soft);color:var(--accent);font-weight:600;white-space:nowrap}
.pill.high,.pill.bad{background:var(--bad-soft);color:var(--bad)}
.pill.doing,.pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.ok{background:var(--ok-soft);color:var(--ok)}
.pill.muted{background:var(--bg);color:var(--muted)}
.empty{background:var(--panel);border:1px dashed var(--line);border-radius:var(--r);padding:28px 20px;text-align:center;color:var(--muted)}
.empty b{display:block;color:var(--fg);font-family:var(--font-display);font-size:18px;margin-bottom:4px}
.banner{background:var(--warn-soft);color:var(--warn);border-radius:8px;padding:8px 12px;font-size:13px}
.banner.bad{background:var(--bad-soft);color:var(--bad)}
.confirm{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px}
details.fold>summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.04em;padding:6px 0}
details.fold[open]>summary{margin-bottom:6px}
.stack{display:flex;flex-direction:column;gap:6px}
.stack.lg{gap:14px}
.hint{font-size:12px;color:var(--muted)}
.cat{display:inline-flex;align-items:center;gap:5px}
.cat::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--dot,var(--muted))}

/* tasks */
.group{display:flex;flex-direction:column;gap:6px}
.group h2{font-size:13px;font-weight:600;color:var(--muted);margin:6px 0 0;letter-spacing:.04em;display:flex;gap:8px;align-items:center}
.group.overdue h2{color:var(--bad)}
.task{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:start;padding:10px 12px}
.task.p-high{box-shadow:inset 3px 0 0 var(--bad)}
.task.done{opacity:.6}
.task.done .t-title{text-decoration:line-through}
.task>.full{grid-column:1/-1}
.check{appearance:none;-webkit-appearance:none;width:22px;height:22px;border:2px solid var(--muted);border-radius:6px;margin:1px 0 0;padding:0;cursor:pointer;background:var(--panel);display:grid;place-items:center}
.check:checked{background:var(--accent);border-color:var(--accent)}
.check:checked::after{content:"";width:6px;height:11px;border:solid var(--on-accent);border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.t-body{min-width:0;display:flex;flex-direction:column;gap:4px;cursor:pointer}
.t-title{overflow-wrap:anywhere;font-weight:500}
.t-meta{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted);align-items:center}
.t-note{font-size:13px;color:var(--muted);overflow-wrap:anywhere;white-space:pre-wrap}
.due-bad{color:var(--bad);font-weight:600}.due-warn{color:var(--warn);font-weight:600}
.edit{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--line);padding-top:10px;margin-top:2px}
.edit .row>*{flex:1 1 140px}
.edit .row.end>*{flex:0 0 auto}

/* projects */
.case{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:12px}
.case.closed{opacity:.75}
.case-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start;flex-wrap:wrap}
.case-name{font-family:var(--font-display);font-size:20px;margin:0;overflow-wrap:anywhere}
.case-sub{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:2px}
.bar{height:6px;border-radius:3px;background:var(--line);overflow:hidden;width:90px}
.bar>i{display:block;height:100%;background:var(--ok)}
.case-note{font-size:13px;color:var(--muted);white-space:pre-wrap;overflow-wrap:anywhere}
.item{border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:10px}
.item-head{display:flex;justify-content:space-between;gap:8px;align-items:flex-start}
.item-title{font-weight:600;overflow-wrap:anywhere}
.item-meta{display:flex;gap:6px;flex-wrap:wrap;align-items:center;font-size:12px;color:var(--muted);margin-top:2px}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:0}
.step{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;position:relative;min-width:0;padding:0 2px}
.step::before{content:"";position:absolute;top:8px;left:-50%;width:100%;height:2px;background:var(--line);z-index:0}
.step:first-child::before{display:none}
.step.reached::before{background:var(--accent)}
.dot{width:18px;height:18px;border-radius:50%;border:2px solid var(--line);background:var(--panel);position:relative;z-index:1;display:grid;place-items:center}
.step.reached .dot{background:var(--accent);border-color:var(--accent)}
.step.reached .dot::after{content:"";width:4px;height:8px;border:solid var(--on-accent);border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.step.current .dot{box-shadow:0 0 0 4px var(--accent-soft)}
.step.finished .dot{background:var(--ok);border-color:var(--ok)}
.s-label{font-size:11.5px;line-height:1.35;color:var(--muted);overflow-wrap:anywhere}
.step.current .s-label{color:var(--fg);font-weight:600}
.s-date{font-size:10.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.item-ctrl{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.item-note{font-size:13px;color:var(--muted);white-space:pre-wrap;overflow-wrap:anywhere}
.subform{background:var(--bg);border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:8px}
.subform .row>*{flex:1 1 140px}
.subform .row.end>*{flex:0 0 auto}
.members{display:flex;flex-direction:column;gap:4px;font-size:13px}
.member{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.member .em{overflow-wrap:anywhere;min-width:0}

/* settings */
.set-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px;align-items:center}
.set-row select{max-width:110px}
.set-row .row{flex-wrap:nowrap}
.set-row .swatch{width:14px;height:14px;border-radius:50%;background:var(--dot)}
.tpl{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);padding-top:10px}
.tpl:first-of-type{border-top:0;padding-top:0}
@media (prefers-reduced-motion:no-preference){.bar>i{transition:width .3s}}