/* ---------- tokens ---------- */
:root {
  --canvas: #14120f;
  --surface-1: #1a1815;
  --surface-2: #221f1b;
  --surface-3: #2a2722;
  --hairline: #2d2a25;
  --hairline-strong: #3a3630;

  --text-primary: #ebe6dc;
  --text-secondary: #9e978a;
  --text-tertiary: #6b6558;
  --text-quaternary: #4a453e;

  --accent: #8a9c72;          /* muted moss */
  --accent-soft: #8a9c7226;
  --success: #8fa079;
  --warning: #c49d5a;
  --missed:  #a8695a;
  --insight: #7d91a8;
  --plum:    #9c7d91;
  --bronze:  #b2885a;

  --radius-s: 6px;
  --radius-m: 10px;
  --radius-l: 14px;

  --ease: cubic-bezier(.2,.7,.2,1);
  --ease-out: cubic-bezier(.22,1,.36,1);
}
[data-theme="light"] {
  --canvas: #f3ede2;
  --surface-1: #ebe4d5;
  --surface-2: #e1d9c8;
  --surface-3: #d6ccb7;
  --hairline: #cdc2ab;
  --hairline-strong: #b8ac91;
  --text-primary: #2a2520;
  --text-secondary: #5d564b;
  --text-tertiary: #827a6c;
  --text-quaternary: #a59c8c;
  --accent-soft: #5a6c4433;
  --accent: #5a6c44;
  --success: #566d42;
  --warning: #8a6420;
  --missed: #8a4a3c;
  --insight: #3f5366;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.5;
  font-feature-settings: 'ss01', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.005em;
}
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
.serif { font-family: 'Instrument Serif', 'Iowan Old Style', Georgia, serif; font-weight: 400; letter-spacing: -0.01em; }

/* ---------- app shell ---------- */
.app {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ---------- rail ---------- */
.rail {
  border-right: 1px solid var(--hairline);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  background: var(--canvas);
}
.rail-brand { display: flex; gap: 10px; align-items: center; padding: 4px 6px; }
.mark {
  width: 22px; height: 22px; border-radius: 4px;
  background:
    linear-gradient(135deg, var(--accent) 0%, var(--bronze) 100%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08);
  position: relative;
}
.mark::after {
  content: ""; position: absolute; inset: 4px;
  border: 1px solid rgba(0,0,0,.35); border-radius: 2px;
}
.brand-name { font-weight: 600; font-size: 15px; letter-spacing: -0.01em; }
.brand-sub { font-size: 11px; color: var(--text-tertiary); font-style: italic; font-family: 'Instrument Serif', serif; letter-spacing: 0; }

.rail-nav { display: flex; flex-direction: column; gap: 1px; }
.rail-item {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 10px;
  color: var(--text-secondary);
  border-radius: var(--radius-s);
  font-size: 14px;
  font-weight: 500;
  transition: background .15s var(--ease), color .15s var(--ease);
}
.rail-item:hover { background: var(--surface-1); color: var(--text-primary); }
.rail-item[aria-selected="true"] { color: var(--text-primary); background: var(--surface-1); }
.rail-item[aria-selected="true"] .rail-ic { color: var(--accent); }
.rail-ic { width: 16px; height: 16px; color: var(--text-tertiary); }
.rail-item[aria-selected="true"] .rail-ic { color: var(--accent); }

.rail-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
.level-card {
  border: 1px solid var(--hairline);
  padding: 12px;
  border-radius: var(--radius-m);
  background: var(--surface-1);
}
.level-row { display: flex; justify-content: space-between; align-items: baseline; }
.level-label { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-tertiary); }
.level-value { font-family: 'Instrument Serif', serif; font-size: 20px; color: var(--text-primary); }
.level-meter { margin-top: 8px; height: 3px; background: var(--hairline); border-radius: 2px; overflow: hidden; }
.level-fill { height: 100%; background: var(--accent); transition: width .5s var(--ease-out); }
.level-sub { margin-top: 7px; font-size: 11px; color: var(--text-tertiary); }
.quick-add {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--hairline);
  background: transparent;
  padding: 9px 12px;
  border-radius: var(--radius-s);
  color: var(--text-secondary);
  font-size: 13px; font-weight: 500;
  transition: all .15s var(--ease);
}
.quick-add:hover { color: var(--text-primary); border-color: var(--hairline-strong); background: var(--surface-1); }
.quick-add .plus { color: var(--accent); font-weight: 400; font-size: 16px; line-height: 1; }

/* ---------- stage ---------- */
.stage {
  padding: 32px 40px 64px;
  max-width: 1200px;
  width: 100%;
}
.tabbar { display: none; }

/* ---------- page header ---------- */
.page-head { margin-bottom: 28px; }
.page-eyebrow { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); }
.page-title { font-family: 'Instrument Serif', serif; font-size: 42px; font-weight: 400; letter-spacing: -0.015em; line-height: 1.05; margin: 4px 0 6px; color: var(--text-primary); }
.page-sub { font-size: 14px; color: var(--text-secondary); }

/* ---------- today ---------- */
.today-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 36px; align-items: start; }

.ritual-panel {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-l);
  background: var(--surface-1);
  overflow: hidden;
}
.ritual-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--hairline);
  background: var(--surface-2);
}
.ritual-head-title { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); }
.ritual-head-meta { font-size: 12px; color: var(--text-tertiary); font-variant-numeric: tabular-nums; }

.group-label {
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-tertiary);
  padding: 16px 18px 8px;
  display: flex; justify-content: space-between; align-items: baseline;
}
.group-label .count { color: var(--text-quaternary); font-size: 11px; letter-spacing: 0; text-transform: none; font-variant-numeric: tabular-nums; }

.habit-row {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px 18px;
  border-top: 1px solid var(--hairline);
  transition: background .2s var(--ease);
  position: relative;
}
.habit-row:first-of-type { border-top: 0; }
.habit-row:hover { background: var(--surface-2); }
.habit-row[data-state="done"] { background: color-mix(in oklab, var(--surface-1), var(--accent) 4%); }
.habit-row[data-state="done"] .habit-name { color: var(--text-secondary); }
.habit-row[data-state="missed"] .habit-name { color: var(--text-secondary); }

.stamp {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1.3px solid var(--hairline-strong);
  display: grid; place-items: center;
  transition: all .25s var(--ease-out);
  cursor: pointer;
  position: relative;
  flex: none;
  background: var(--surface-1);
}
.stamp::before {
  content: "";
  position: absolute; inset: 3px;
  border-radius: 50%;
  border: 1px dashed transparent;
  transition: border-color .2s var(--ease);
}
.stamp:hover { border-color: var(--accent); }
.stamp:hover::before { border-color: var(--accent-soft); }
.stamp.is-active {
  pointer-events: none;
}
.habit-row[data-state="done"] .stamp {
  background: var(--accent);
  border-color: var(--accent);
}
.habit-row[data-state="done"] .stamp svg { stroke: var(--canvas); opacity: 1; transform: scale(1); }
.habit-row[data-state="missed"] .stamp {
  border-color: var(--missed);
  background: transparent;
}
.habit-row[data-state="missed"] .stamp svg.missed-ic { stroke: var(--missed); opacity: 1; }
.stamp svg { width: 14px; height: 14px; stroke: var(--canvas); fill: none; stroke-width: 2.2; opacity: 0; transform: scale(.7); transition: opacity .25s var(--ease), transform .3s var(--ease-out); }
.stamp svg.missed-ic { stroke: var(--missed); }

.habit-info { min-width: 0; }
.habit-name { font-size: 15px; font-weight: 500; color: var(--text-primary); letter-spacing: -0.005em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.habit-meta { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; display: flex; gap: 10px; align-items: center; font-variant-numeric: tabular-nums; }
.habit-meta .dot { width: 3px; height: 3px; background: var(--text-quaternary); border-radius: 50%; display: inline-block; }
.habit-row[data-state="done"] .habit-name { text-decoration: line-through; text-decoration-color: var(--text-quaternary); text-decoration-thickness: 1px; }

.habit-actions { display: flex; gap: 4px; opacity: 0; transition: opacity .2s var(--ease); }
.habit-row:hover .habit-actions { opacity: 1; }
.habit-action {
  width: 30px; height: 30px; border-radius: var(--radius-s);
  display: grid; place-items: center;
  color: var(--text-tertiary);
  transition: all .15s var(--ease);
}
.habit-action:hover { background: var(--surface-3); color: var(--text-primary); }
.habit-action svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.4; }

.streak-chip {
  display: inline-flex; align-items: center; gap: 4px;
  font-variant-numeric: tabular-nums;
  color: var(--text-tertiary);
  font-size: 12px;
}
.streak-chip.warm { color: var(--bronze); }
.streak-chip.strong { color: var(--accent); }
.streak-chip svg { width: 10px; height: 10px; }

/* ---------- secondary stack ---------- */
.side-stack { display: flex; flex-direction: column; gap: 20px; }
.panel {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-l);
  background: var(--surface-1);
  padding: 18px;
}
.panel-label { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 10px; }
.panel-title { font-family: 'Instrument Serif', serif; font-size: 20px; font-weight: 400; letter-spacing: -0.01em; color: var(--text-primary); margin: 0 0 6px; }

/* momentum strip */
.momentum { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat {
  padding: 12px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  background: var(--surface-2);
}
.stat-label { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-tertiary); }
.stat-value { font-family: 'Instrument Serif', serif; font-size: 26px; color: var(--text-primary); margin-top: 6px; font-variant-numeric: tabular-nums; line-height: 1; }
.stat-sub { font-size: 11px; color: var(--text-tertiary); margin-top: 4px; }

.week-strip {
  display: grid; grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-top: 10px;
}
.wd {
  text-align: center;
  padding: 6px 0;
  border-radius: var(--radius-s);
  border: 1px solid var(--hairline);
  background: var(--surface-2);
}
.wd-l { font-size: 10px; color: var(--text-tertiary); letter-spacing: 0.08em; text-transform: uppercase; }
.wd-v { margin-top: 4px; height: 4px; border-radius: 2px; background: var(--hairline); position: relative; overflow: hidden; }
.wd-v::after { content: ""; position: absolute; inset: 0; width: var(--pct,0%); background: var(--accent); transition: width .4s var(--ease-out); }
.wd.is-today { border-color: var(--hairline-strong); background: var(--surface-3); }
.wd.is-future { opacity: .45; }
.wd-d { font-size: 12px; color: var(--text-secondary); font-variant-numeric: tabular-nums; margin-top: 3px; }

/* friction, reflection */
.friction-line { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; font-size: 13px; color: var(--text-secondary); }
.friction-line + .friction-line { border-top: 1px solid var(--hairline); }
.friction-line .pip { width: 6px; height: 6px; margin-top: 7px; border-radius: 50%; background: var(--insight); flex: none; }
.friction-line.warn .pip { background: var(--warning); }
.friction-line.good .pip { background: var(--accent); }

.reflect textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  padding: 10px 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  resize: none;
  min-height: 70px;
  transition: border-color .15s var(--ease);
}
.reflect textarea:focus { outline: none; border-color: var(--accent); }
.reflect textarea::placeholder { color: var(--text-quaternary); font-style: italic; font-family: 'Instrument Serif', serif; font-size: 15px; }

/* ---------- calendar ---------- */
.cal-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.cal-nav { display: flex; gap: 2px; align-items: center; }
.icon-btn {
  width: 32px; height: 32px; border-radius: var(--radius-s);
  display: grid; place-items: center;
  color: var(--text-secondary);
  transition: all .15s var(--ease);
  border: 1px solid transparent;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text-primary); border-color: var(--hairline); }
.icon-btn svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.6; }

.cal-month-title { font-family: 'Instrument Serif', serif; font-size: 28px; letter-spacing: -0.01em; }

.cal-segment {
  display: inline-flex; border: 1px solid var(--hairline); border-radius: var(--radius-s); overflow: hidden;
  background: var(--surface-1);
}
.cal-segment button {
  padding: 7px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  border-right: 1px solid var(--hairline);
  transition: all .15s var(--ease);
}
.cal-segment button:last-child { border-right: 0; }
.cal-segment button[aria-pressed="true"] { background: var(--surface-3); color: var(--text-primary); }

.cal-narrative {
  padding: 18px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-l);
  background: var(--surface-1);
  font-family: 'Instrument Serif', serif;
  font-size: 20px;
  line-height: 1.35;
  color: var(--text-primary);
  letter-spacing: -0.005em;
  margin-bottom: 20px;
}
.cal-narrative .muted { color: var(--text-tertiary); }

.cal-weekheader, .cal-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px;
}
.cal-weekheader div { text-align: center; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); padding: 6px 0; }
.cal-grid { margin-top: 2px; }
.cal-cell {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-s);
  border: 1px solid var(--hairline);
  background: var(--surface-1);
  position: relative;
  transition: all .15s var(--ease);
  cursor: pointer;
  padding: 6px;
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.cal-cell.blank { background: transparent; border-color: transparent; pointer-events: none; }
.cal-cell.future { opacity: .5; }
.cal-cell.today { border-color: var(--hairline-strong); }
.cal-cell.today::after { content: ""; position: absolute; inset: -1px; border-radius: var(--radius-s); border: 1px solid var(--accent); pointer-events: none; }
.cal-cell .dnum { color: var(--text-secondary); font-weight: 500; }
.cal-cell .ddots { display: flex; gap: 2px; flex-wrap: wrap; }
.cal-cell .ddot { width: 5px; height: 5px; border-radius: 50%; }
.cal-cell .dtone { position: absolute; left: 4px; right: 4px; bottom: 4px; height: 3px; border-radius: 2px; background: var(--hairline); overflow: hidden; }
.cal-cell .dtone::after { content: ""; position: absolute; inset: 0; width: var(--pct,0%); background: var(--accent); }
.cal-cell:hover { background: var(--surface-2); }

/* habit timeline */
.hab-timeline {
  margin-top: 22px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-l);
  background: var(--surface-1);
  overflow: hidden;
}
.hab-timeline-row {
  display: grid; grid-template-columns: 180px 1fr;
  border-top: 1px solid var(--hairline);
  align-items: center;
}
.hab-timeline-row:first-child { border-top: 0; }
.hab-timeline-name { padding: 10px 14px; font-size: 13px; color: var(--text-primary); }
.hab-timeline-name .sub { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }
.hab-timeline-strip { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(14px, 1fr); gap: 3px; padding: 10px 14px; }
.tcell {
  aspect-ratio: 1/1;
  border-radius: 2px;
  background: var(--hairline);
  position: relative;
}
.tcell.done { background: var(--accent); }
.tcell.partial { background: color-mix(in oklab, var(--accent), transparent 50%); }
.tcell.missed { background: color-mix(in oklab, var(--missed), transparent 60%); }
.tcell.skipped { background: var(--hairline-strong); }
.tcell.future { background: transparent; border: 1px dashed var(--hairline); }
.tcell.today { outline: 1px solid var(--accent); outline-offset: 1px; }

/* ---------- habits library ---------- */
.library-tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--hairline); }
.library-tab {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-tertiary);
  position: relative;
  font-weight: 500;
}
.library-tab[aria-selected="true"] { color: var(--text-primary); }
.library-tab[aria-selected="true"]::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: -1px; height: 1.5px; background: var(--accent); }

.lib-list { display: flex; flex-direction: column; gap: 10px; }
.lib-item {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  background: var(--surface-1);
  padding: 16px 18px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  transition: border-color .15s var(--ease);
}
.lib-item:hover { border-color: var(--hairline-strong); }
.lib-top { display: flex; align-items: baseline; gap: 10px; }
.lib-name { font-size: 16px; font-weight: 500; color: var(--text-primary); letter-spacing: -0.005em; }
.lib-cat { font-size: 11px; color: var(--text-tertiary); letter-spacing: 0.06em; text-transform: uppercase; }
.lib-why { font-family: 'Instrument Serif', serif; font-style: italic; color: var(--text-secondary); font-size: 16px; margin-top: 4px; }
.lib-grid { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 10px; font-size: 12px; color: var(--text-secondary); }
.lib-grid .k { color: var(--text-tertiary); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; display: block; margin-bottom: 2px; }
.lib-grid .v { font-variant-numeric: tabular-nums; font-weight: 500; color: var(--text-primary); }
.lib-insight { margin-top: 10px; font-size: 12px; color: var(--accent); }
.lib-actions { display: flex; gap: 2px; align-items: flex-start; }

.empty {
  padding: 60px 20px;
  text-align: center;
  border: 1px dashed var(--hairline);
  border-radius: var(--radius-l);
  color: var(--text-tertiary);
}
.empty .serif { font-size: 24px; color: var(--text-secondary); margin-bottom: 6px; display: block; }
.empty button {
  margin-top: 14px;
  padding: 8px 16px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-s);
  color: var(--text-primary);
  font-size: 13px;
  background: var(--surface-1);
  transition: all .15s var(--ease);
}
.empty button:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- insights ---------- */
.ins-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.ins-hero {
  grid-column: 1 / -1;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-l);
  background: var(--surface-1);
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.ins-stat .k { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); }
.ins-stat .v { font-family: 'Instrument Serif', serif; font-size: 38px; color: var(--text-primary); line-height: 1; margin-top: 8px; font-variant-numeric: tabular-nums; }
.ins-stat .s { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

.ins-panel {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-l);
  background: var(--surface-1);
  padding: 20px;
}
.ins-panel h3 { font-family: 'Instrument Serif', serif; font-size: 22px; margin: 0 0 2px; color: var(--text-primary); font-weight: 400; }
.ins-panel .lede { color: var(--text-secondary); font-size: 13px; margin-bottom: 14px; }
.stability-list { display: flex; flex-direction: column; gap: 10px; }
.stab-row { display: grid; grid-template-columns: 1fr 90px 60px; gap: 14px; align-items: center; font-size: 13px; }
.stab-name { color: var(--text-primary); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stab-bar { height: 4px; border-radius: 2px; background: var(--hairline); position: relative; overflow: hidden; }
.stab-bar::after { content: ""; position: absolute; inset: 0; width: var(--pct,0); background: var(--accent); }
.stab-val { text-align: right; font-variant-numeric: tabular-nums; color: var(--text-secondary); font-size: 12px; }

/* ---------- you / profile ---------- */
.you-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.you-hero {
  grid-column: 1 / -1;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-l);
  background:
    radial-gradient(600px 240px at 20% 0%, color-mix(in oklab, var(--accent), transparent 85%), transparent),
    var(--surface-1);
  padding: 32px;
}
.you-title { font-family: 'Instrument Serif', serif; font-size: 44px; letter-spacing: -0.015em; line-height: 1.05; color: var(--text-primary); }
.you-title em { font-style: italic; color: var(--accent); }
.you-sub { color: var(--text-secondary); margin-top: 8px; font-size: 14px; max-width: 540px; }
.you-meta { display: flex; gap: 28px; margin-top: 22px; }
.you-meta .k { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); }
.you-meta .v { font-family: 'Instrument Serif', serif; font-size: 28px; color: var(--text-primary); margin-top: 4px; font-variant-numeric: tabular-nums; line-height: 1; }

.achv-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
.achv {
  padding: 12px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  background: var(--surface-2);
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: center;
}
.achv.locked { opacity: 0.55; }
.achv-seal {
  width: 34px; height: 34px; border-radius: 4px;
  display: grid; place-items: center;
  background: var(--surface-3);
  color: var(--text-tertiary);
  border: 1px solid var(--hairline);
  font-family: 'Instrument Serif', serif;
  font-size: 18px;
}
.achv.unlocked .achv-seal { background: linear-gradient(135deg, var(--accent), var(--bronze)); color: var(--canvas); border-color: transparent; }
.achv-name { font-size: 13px; font-weight: 500; color: var(--text-primary); }
.achv-desc { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }

/* rewards */
.reward { padding: 14px 16px; border: 1px solid var(--hairline); border-radius: var(--radius-m); display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; background: var(--surface-2); }
.reward + .reward { margin-top: 10px; }
.reward .rw-title { font-weight: 500; font-size: 14px; color: var(--text-primary); }
.reward .rw-sub { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }
.reward-bar { margin-top: 8px; height: 3px; border-radius: 2px; background: var(--hairline); position: relative; overflow: hidden; max-width: 220px; }
.reward-bar::after { content: ""; position: absolute; inset: 0; width: var(--pct, 0%); background: var(--bronze); }
.reward.claimable { border-color: var(--accent); background: color-mix(in oklab, var(--surface-2), var(--accent) 10%); }
.reward.claimed { opacity: .55; }
.btn {
  padding: 7px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-s);
  font-size: 13px;
  font-weight: 500;
  background: var(--surface-1);
  color: var(--text-primary);
  transition: all .15s var(--ease);
}
.btn:hover { border-color: var(--hairline-strong); }
.btn.primary { background: var(--accent); color: var(--canvas); border-color: var(--accent); }
.btn.primary:hover { background: color-mix(in oklab, var(--accent), white 5%); }
.btn.ghost { background: transparent; color: var(--text-secondary); border-color: transparent; }
.btn.ghost:hover { color: var(--text-primary); background: var(--surface-2); }
.btn.danger { color: var(--missed); border-color: transparent; background: transparent; }
.btn.danger:hover { background: color-mix(in oklab, var(--surface-1), var(--missed) 14%); }

/* ---------- modal ---------- */
.modal-root { position: fixed; inset: 0; pointer-events: none; z-index: 40; }
.modal-root[aria-hidden="false"] { pointer-events: auto; }
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity .25s var(--ease);
}
.modal-root[aria-hidden="false"] .modal-backdrop { opacity: 1; }
.modal {
  position: fixed;
  left: 50%; top: 50%;
  transform: translate(-50%, -48%);
  width: min(560px, calc(100% - 24px));
  max-height: min(86vh, 86dvh);
  overflow: auto;
  background: var(--surface-1);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-l);
  opacity: 0;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.55);
}
.modal-root[aria-hidden="false"] .modal { opacity: 1; transform: translate(-50%, -50%); }
.modal-head { padding: 18px 22px; border-bottom: 1px solid var(--hairline); display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; background: var(--surface-1); }
.modal-title { font-family: 'Instrument Serif', serif; font-size: 22px; font-weight: 400; color: var(--text-primary); letter-spacing: -0.01em; }
.modal-step { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); }
.modal-body { padding: 20px 22px; }
.modal-foot { padding: 14px 22px; border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; align-items: center; gap: 10px; background: var(--surface-1); position: sticky; bottom: 0; }

.field { display: block; margin-bottom: 16px; }
.field > label { display: block; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 6px; }
.field input[type=text], .field input[type=number], .field textarea, .field select {
  width: 100%;
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-s);
  color: var(--text-primary);
  font-family: inherit; font-size: 14px;
  transition: border-color .15s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field .hint { font-size: 12px; color: var(--text-tertiary); margin-top: 6px; font-style: italic; font-family: 'Instrument Serif', serif; font-size: 13px; }

.chipset { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  padding: 6px 12px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-size: 12px;
  color: var(--text-secondary);
  background: transparent;
  transition: all .15s var(--ease);
  font-weight: 500;
}
.chip:hover { border-color: var(--hairline-strong); color: var(--text-primary); }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--canvas); border-color: var(--accent); }

.segmented {
  display: inline-flex;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-s);
  overflow: hidden;
}
.segmented button {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  border-right: 1px solid var(--hairline);
  transition: all .15s var(--ease);
  font-weight: 500;
}
.segmented button:last-child { border-right: 0; }
.segmented button[aria-pressed="true"] { background: var(--surface-3); color: var(--text-primary); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.step-dots { display: flex; gap: 5px; }
.step-dots .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--hairline-strong); transition: background .2s var(--ease); }
.step-dots .dot.is-active { background: var(--accent); }
.step-dots .dot.done { background: var(--text-tertiary); }

/* day detail sheet */
.day-detail .hab-line { display: grid; grid-template-columns: 1fr auto; padding: 10px 0; border-top: 1px solid var(--hairline); align-items: center; font-size: 14px; }
.day-detail .hab-line:first-of-type { border-top: 0; }
.day-detail .hab-line .n { color: var(--text-primary); }
.day-detail .hab-line .cat { font-size: 11px; color: var(--text-tertiary); }
.day-detail .seg button { padding: 5px 9px; font-size: 11px; }

/* ---------- toasts ---------- */
.toast-root { position: fixed; bottom: 84px; left: 50%; transform: translateX(-50%); z-index: 60; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
@media (min-width: 900px) { .toast-root { bottom: 24px; } }
.toast {
  background: var(--surface-3);
  border: 1px solid var(--hairline-strong);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: var(--radius-m);
  font-size: 13px;
  opacity: 0;
  transform: translateY(8px);
  transition: all .25s var(--ease);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
  min-width: 240px;
  text-align: center;
  pointer-events: auto;
}
.toast.in { opacity: 1; transform: translateY(0); }
.toast .meta { color: var(--accent); font-weight: 500; margin-right: 6px; }

/* ---------- animations ---------- */
@keyframes stamp-pop {
  0% { transform: scale(.6); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
.habit-row[data-state="done"] .stamp svg { animation: stamp-pop .35s var(--ease-out) both; }

@keyframes fade-up { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.stage > * { animation: fade-up .35s var(--ease-out) both; }

/* ---------- responsive ---------- */
@media (max-width: 1040px) {
  .today-grid { grid-template-columns: 1fr; }
  .ins-grid { grid-template-columns: 1fr; }
  .you-grid { grid-template-columns: 1fr; }
  .ins-hero { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .app { grid-template-columns: 1fr; }
  .rail { display: none; }
  .stage { padding: 20px 16px 110px; }
  .page-title { font-size: 34px; }
  .hab-timeline-row { grid-template-columns: 110px 1fr; }
  .hab-timeline-name { padding: 8px 10px; font-size: 12px; }
  .hab-timeline-strip { padding: 8px 10px; gap: 2px; }
  .modal { width: calc(100% - 16px); bottom: 8px; top: auto; left: 50%; transform: translate(-50%, 20px); border-radius: var(--radius-l) var(--radius-l) var(--radius-m) var(--radius-m); }
  .modal-root[aria-hidden="false"] .modal { transform: translate(-50%, 0); }
  .tabbar {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: color-mix(in oklab, var(--canvas), transparent 4%);
    backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    border-top: 1px solid var(--hairline);
    padding: 8px 4px calc(8px + env(safe-area-inset-bottom)) 4px;
    z-index: 20;
  }
  .tab {
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    color: var(--text-tertiary); padding: 6px 4px; font-size: 10px; letter-spacing: 0.04em;
    font-weight: 500;
    border-radius: 8px;
  }
  .tab svg { width: 20px; height: 20px; stroke: currentColor; }
  .tab[aria-selected="true"] { color: var(--text-primary); }
  .tab[aria-selected="true"] svg { color: var(--accent); }
  .cal-weekheader div { font-size: 9px; }
  .cal-cell { padding: 4px; font-size: 10px; }
  .ins-hero { grid-template-columns: 1fr 1fr; gap: 16px; padding: 18px; }
  .ins-stat .v { font-size: 28px; }
  .you-title { font-size: 32px; }
  .achv-grid { grid-template-columns: 1fr; }
  .momentum { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}