:root {
  --bg: #0e1218; --surface: #161c25; --surface-2: #1e2631; --ink: #e8edf3; --ink-2: #b4bdc8; --muted: #7b8693;
  --line: #28323f; --accent: #f0743c; --accent-soft: #3b2418; --leaf: #6fcf6f; --leaf-soft: #17301c; --gold: #f2c14e;
  --good: #4fc27a; --danger: #e05b5b; --track: #28323f;
  --display: "Bricolage Grotesque", "Arial Narrow", Arial, sans-serif;
  --body: "Manrope", "Segoe UI", Helvetica, Arial, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--body); font-size: 15px; line-height: 1.45; overscroll-behavior: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3 { font-family: var(--display); margin: 0; text-wrap: balance; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.eyebrow { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 700; }

#app { display: grid; grid-template-rows: auto 1fr auto; height: 100dvh; max-width: 900px; margin: 0 auto; }

/* top bar */
.top { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--bg); }
.top .lv { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--surface-2); font-family: var(--display); font-weight: 800; font-size: 18px; position: relative; }
.top .lv svg { position: absolute; inset: -3px; width: 50px; height: 50px; transform: rotate(-90deg); }
.top .lv circle { fill: none; stroke-width: 3; }
.top .lv .t { stroke: var(--track); }
.top .lv .f { stroke: var(--accent); stroke-linecap: round; }
.top .name { flex: 1; min-width: 0; }
.top .name b { display: block; font-family: var(--display); font-size: 17px; font-weight: 700; }
.top .name span { font-size: 12px; color: var(--ink-2); }
.top .sync { font-size: 11px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.top .sync i { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); display: inline-block; }
.top .sync.ok i { background: var(--good); }
.top .sync.off i { background: var(--gold); }
.top .sync.err i { background: var(--danger); }

/* views */
main { overflow: auto; padding: 14px; display: grid; gap: 14px; align-content: start; }
main[data-view="tree"] { padding: 0; display: block; }
.view { display: none; }
.view.active { display: contents; }
#treeCanvas { width: 100%; height: 100%; display: block; touch-action: none; }
.treeWrap { position: relative; height: 100%; }
.treeHud { position: absolute; left: 12px; right: 12px; bottom: 12px; display: flex; gap: 8px; flex-wrap: wrap; pointer-events: none; }
.chip { pointer-events: auto; background: color-mix(in srgb, var(--surface) 85%, transparent); border: 1px solid var(--line); border-radius: 999px; padding: 6px 11px; font-size: 12px; backdrop-filter: blur(6px); display: flex; gap: 6px; align-items: center; }
.chip b { font-family: var(--display); }
.tip { position: absolute; top: 12px; left: 12px; right: 12px; background: color-mix(in srgb, var(--surface) 92%, transparent); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; font-size: 13px; backdrop-filter: blur(6px); }
.tip[hidden] { display: none; }
.tip b { font-family: var(--display); font-size: 15px; }
.tip .bar { margin-top: 6px; }
.mindset { position: absolute; top: 12px; left: 12px; right: 12px; text-align: center; font-size: 12px; color: var(--ink-2); font-style: italic; pointer-events: none; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px; display: grid; gap: 8px; }
.row { display: flex; align-items: center; gap: 10px; }
.row > .grow { flex: 1; min-width: 0; }
.bar { height: 6px; background: var(--track); border-radius: 3px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 3px; transition: width .4s ease; }
.bar.leaf i { background: var(--leaf); }

/* add task */
.add { display: flex; gap: 8px; }
.add input { flex: 1; background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; outline: none; }
.add input:focus { border-color: var(--accent); }
.btn { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: 9px 13px; font-weight: 600; font-size: 14px; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.small { padding: 5px 9px; font-size: 12px; border-radius: 8px; }
.btn.ghost { background: transparent; }
.btn:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* task list */
.tasks { display: grid; gap: 6px; }
.task { display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
.task.done { opacity: .55; }
.task .box { width: 22px; height: 22px; border-radius: 7px; border: 2px solid var(--muted); flex: none; display: grid; place-content: center; color: #fff; background: transparent; margin-top: 1px; }
.task.done .box { background: var(--leaf); border-color: var(--leaf); }
.task .body { flex: 1; min-width: 0; }
.task .title { font-weight: 600; line-height: 1.3; }
.task.done .title { text-decoration: line-through; }
.task .meta { font-size: 11px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; margin-top: 3px; }
.task .meta .skill { color: var(--accent); font-weight: 700; }
.task .meta .yet { color: var(--gold); font-weight: 700; }
.task .acts { display: flex; gap: 4px; flex: none; }
.pill { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); }
.pill.unsorted { color: var(--gold); border-color: var(--gold); }

/* habits */
.habits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.habit { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; background: var(--surface); border: 1px solid var(--line); text-align: left; }
.habit.done { border-color: var(--leaf); background: var(--leaf-soft); }
.habit .box { width: 20px; height: 20px; border-radius: 6px; border: 2px solid var(--muted); flex: none; display: grid; place-content: center; font-size: 12px; color: #fff; }
.habit.done .box { background: var(--leaf); border-color: var(--leaf); }
.habit .hn { font-size: 13px; font-weight: 600; flex: 1; line-height: 1.25; }
.habit .st { font-size: 12px; color: var(--accent); font-weight: 700; white-space: nowrap; }
.habit .st.cold { color: var(--muted); font-weight: 500; }

/* goals / skills */
.skillCard header { display: flex; align-items: center; gap: 8px; }
.skillCard .icon { font-size: 22px; }
.skillCard h3 { flex: 1; font-size: 16px; }
.skillCard .lv { font-family: var(--display); color: var(--accent); font-weight: 800; }
.goal { display: flex; align-items: center; gap: 8px; padding: 6px 0; border-top: 1px dashed var(--line); font-size: 13px; }
.goal .gt { flex: 1; }
.goal.done .gt { text-decoration: line-through; color: var(--muted); }
.goal .gx { color: var(--muted); font-size: 11px; }
.lesson { font-size: 12px; color: var(--ink-2); padding: 6px 8px; background: var(--surface-2); border-radius: 8px; border-left: 3px solid var(--gold); }

/* week chart */
.week svg { width: 100%; height: 100px; display: block; }
.week .lbl { font-size: 10px; fill: var(--muted); font-family: var(--body); }
.week .val { font-size: 10px; fill: var(--ink-2); font-family: var(--body); font-weight: 600; }
.week rect { fill: var(--accent); }
.week rect.zero { fill: var(--track); }
.week line { stroke: var(--line); }

/* settings */
label.field { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
label.field input, label.field select, label.field textarea { background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 14px; color: var(--ink); }

/* nav */
nav { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); background: var(--bg); padding-bottom: env(safe-area-inset-bottom); }
nav button { background: none; border: 0; padding: 9px 4px 8px; font-size: 11px; color: var(--muted); display: grid; gap: 2px; justify-items: center; font-weight: 600; }
nav button span:first-child { font-size: 18px; }
nav button.active { color: var(--accent); }

/* modal */
dialog { background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: 14px; padding: 16px; width: min(92vw, 420px); }
dialog::backdrop { background: rgba(0,0,0,.55); }
dialog form { display: grid; gap: 10px; }
dialog h3 { font-size: 17px; }
dialog textarea { min-height: 80px; resize: vertical; }
.toast { position: fixed; left: 50%; bottom: 76px; transform: translateX(-50%); background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 999px; font-weight: 700; font-size: 13px; box-shadow: 0 6px 20px rgba(0,0,0,.4); opacity: 0; transition: opacity .25s; pointer-events: none; }
.toast.show { opacity: 1; }
@media (max-width: 380px) { .habits { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .bar i { transition: none; } }

/* domains, subskills */
.domain { display: grid; gap: 8px; margin-bottom: 16px; }
.domainHead { display: flex; align-items: center; gap: 8px; padding: 0 2px 4px; border-bottom: 1px solid var(--line); }
.domainHead .icon { font-size: 18px; }
.domainHead h2 { font-family: var(--display); font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); flex: 1; }
.domainHead .lv { font-family: var(--display); font-size: 12px; font-weight: 800; color: var(--accent); }
.domainHead .muted { font-size: 11px; }
.domain .skillCard { margin-left: 10px; border-left: 2px solid var(--line); }
.subs { display: flex; flex-wrap: wrap; gap: 5px; }
.subchip { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; padding: 4px 9px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--line); color: var(--ink-2); font-weight: 600; }
.subchip b { font-size: 10.5px; color: var(--muted); font-weight: 700; }
.subchip.lit { border-color: var(--leaf); color: var(--ink); }
.subchip.lit b { color: var(--leaf); }
.subchip.add { border-style: dashed; color: var(--muted); font-weight: 500; }
#resetView { cursor: pointer; font-family: inherit; color: var(--ink-2); }
dialog optgroup { color: var(--muted); font-size: 12px; }
.linkish { background: none; border: 0; padding: 0; font: inherit; color: inherit; text-align: left; cursor: pointer; }
.linkish:hover { color: var(--accent); }
.chip.legend { color: var(--muted); font-size: 11px; gap: 4px; }
.chip.legend span { opacity: .5; }
.srcline { font-size: 10.5px; color: var(--muted); line-height: 1.35; border-left: 2px solid var(--line); padding-left: 7px; }
.srcline.warn { color: var(--gold); border-left-color: var(--gold); }
.task .meta .frommem { color: var(--leaf); font-weight: 600; }