/* Birth Prep — layout concept: a phone-first tracker with a bottom tab bar;
   everything reference-y folds away so one screen only ever asks one thing. */

:root {
  --ground:    #fbfaf8;
  --ground-2:  #f3f1ec;
  --card:      #ffffff;
  --ink:       #1b2422;
  --ink-2:     #4a554f;
  --ink-3:     #79837d;
  --rule:      #dedcd5;
  --accent:    #2f6f62;
  --accent-sf: #e4edea;
  --warm:      #9a5a24;
  --warm-sf:   #f6ebdf;

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans:  ui-sans-serif, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:  ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 42rem;
  --tabh: 4.25rem;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground:   #111614;
    --ground-2: #191f1d;
    --card:     #1a211e;
    --ink:      #e7ece8;
    --ink-2:    #b0bab4;
    --ink-3:    #828c87;
    --rule:     #2c3531;
    --accent:   #7fbcac;
    --accent-sf:#1e2e29;
    --warm:     #d69a5e;
    --warm-sf:  #2a2218;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }
html { -webkit-text-size-adjust: 100%; }

/* Touch: no grey flash, no double-tap zoom delay, no accidental text
   selection when she taps a card twice in a row. */
button, summary, label, a {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.habit, .tab, .icon-btn, .link-btn, .panel summary {
  -webkit-user-select: none;
  user-select: none;
}

/* One icon size for the whole set. */
.ic { width: 1.25rem; height: 1.25rem; flex: none; display: block; }

body {
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(var(--tabh) + env(safe-area-inset-bottom, 0px));
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* ───────── top bar ───────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ground);
  border-bottom: 1px solid var(--rule);
  padding-top: env(safe-area-inset-top, 0px);
}
.topbar-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: .7rem;
}
.brand { display: flex; align-items: baseline; gap: .6rem; min-width: 0; }
.brand-name {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -.01em;
}
.week-chip {
  font-family: var(--mono);
  font-size: .72rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  background: var(--accent-sf);
  padding: .14rem .45rem;
  border-radius: 999px;
  white-space: nowrap;
}
.icon-btn {
  appearance: none;
  border: 1px solid var(--rule);
  background: var(--card);
  color: var(--ink-2);
  width: 2.6rem; height: 2.6rem;
  border-radius: 999px;
  display: grid; place-items: center;
  cursor: pointer; flex: none;
  transition: opacity .12s ease;
}
.icon-btn:active { opacity: .55; }
@media (hover: hover) { .icon-btn:hover { color: var(--ink); } }
.icon-btn:focus-visible, .tab:focus-visible, .habit:focus-visible,
summary:focus-visible, .link-btn:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

.settings { background: var(--ground-2); border-bottom: 1px solid var(--rule); }
.settings-in { padding-block: .9rem; display: flex; flex-direction: column; gap: .4rem; }
.settings label { font-size: .78rem; font-weight: 600; color: var(--ink-2); }
.settings input[type="date"] {
  font: inherit;
  padding: .45rem .6rem;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--card);
  color: var(--ink);
  max-width: 14rem;
}
.link-btn {
  appearance: none; background: none; border: 0;
  color: var(--accent); font: inherit; font-size: .85rem;
  text-decoration: underline; cursor: pointer;
  padding: 0; align-self: flex-start;
  min-height: 2.75rem;
  display: flex; align-items: center;
}
.link-btn:active { opacity: .55; }

/* ───────── views ───────── */
main { padding-block: 1.4rem 2.5rem; display: block; }
.view { display: flex; flex-direction: column; gap: 1.1rem; }
.view[hidden] { display: none; }

.lede { font-size: 1.05rem; color: var(--ink-2); margin: 0; }
.lede b { color: var(--ink); }
.sec-h {
  font-family: var(--serif);
  font-size: 1.12rem; font-weight: 600;
  margin: .6rem 0 -.5rem;
}
.muted { color: var(--ink-3); margin: 0; }
.small { font-size: .85rem; }

.focus {
  background: var(--warm-sf);
  border-left: 3px solid var(--warm);
  padding: .8rem 1rem;
}
.focus-label {
  display: flex; align-items: center; gap: .35rem;
  font-family: var(--mono);
  font-size: .64rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--warm); font-weight: 700; margin-bottom: .2rem;
}
.focus-label .ic { width: .95rem; height: .95rem; stroke-width: 2; }
.focus p { margin: 0; font-size: .93rem; }

/* ───────── habits ───────── */
.habits { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; }

.habit {
  width: 100%;
  appearance: none;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: .7rem .85rem;
  display: flex; align-items: center; gap: .85rem;
  cursor: pointer;
  text-align: left;
  color: inherit;
  font: inherit;
  transition: border-color .15s ease, background .15s ease, transform .1s ease;
}
@media (hover: hover) { .habit:hover { border-color: var(--accent); } }
.habit:active { transform: scale(.985); border-color: var(--accent); }
.habit.is-done { background: var(--accent-sf); border-color: var(--accent); }

.ring {
  flex: none;
  width: 2.6rem; height: 2.6rem;
  border-radius: 999px;
  display: grid; place-items: center;
  background:
    conic-gradient(var(--accent) calc(var(--pct) * 1%), var(--rule) 0);
  position: relative;
}
.ring::after {
  content: "";
  position: absolute; inset: 3px;
  background: var(--card);
  border-radius: 999px;
}
.habit.is-done .ring::after { background: var(--accent-sf); }
.ring-n {
  position: relative; z-index: 1;
  font-family: var(--mono);
  font-size: .85rem; font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.ring-t { color: var(--ink-3); font-weight: 400; font-size: .72em; }

.habit-txt { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.habit-name {
  font-weight: 600; font-size: .96rem;
  display: flex; align-items: center; gap: .4rem;
}
.habit-name .ic { width: 1rem; height: 1rem; color: var(--ink-3); }
.habit.is-done .habit-name .ic { color: var(--accent); }
.habit-note { font-size: .8rem; color: var(--ink-3); }
.habit-tick {
  flex: none;
  color: var(--ink-3);
  display: grid; place-items: center;
  width: 1.5rem;
}
.habit-tick .ic { width: 1.2rem; height: 1.2rem; }
.habit.is-done .habit-tick { color: var(--accent); }

.done-note {
  background: var(--accent-sf);
  color: var(--accent);
  font-weight: 600; font-size: .9rem;
  padding: .7rem .9rem; border-radius: 10px;
  display: flex; align-items: center; gap: .5rem;
}

.priority { margin: 0; padding-left: 1.2rem; display: flex; flex-direction: column; gap: .5rem; }
.priority li { font-size: .95rem; color: var(--ink-2); }
.priority b { color: var(--ink); }

/* ───────── plan accordion ───────── */
.panel {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  margin-bottom: .5rem;
  overflow: hidden;
}
.panel summary {
  list-style: none;
  cursor: pointer;
  padding: .85rem 1rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: .15rem .7rem;
}
.panel summary:active { background: var(--ground-2); }
.panel-i {
  grid-column: 1; grid-row: 1 / span 2;
  display: grid; place-items: center;
  color: var(--ink-3);
}
.panel[open] .panel-i { color: var(--accent); }
.panel summary::-webkit-details-marker { display: none; }
.panel-t { grid-column: 2; font-family: var(--serif); font-size: 1.05rem; font-weight: 600; }
.panel-s { grid-column: 2; font-size: .82rem; color: var(--ink-3); }
.chev {
  grid-column: 3; grid-row: 1 / span 2;
  width: .55rem; height: .55rem;
  border-right: 2px solid var(--ink-3);
  border-bottom: 2px solid var(--ink-3);
  transform: rotate(45deg);
  transition: transform .18s ease;
}
.panel[open] .chev { transform: rotate(-135deg); }
.panel-b { padding: 0 1rem 1rem; border-top: 1px solid var(--rule); padding-top: .9rem; }

.panel-b p { margin: 0 0 .8rem; }
.panel-b h4 {
  font-family: var(--serif);
  font-size: .98rem; font-weight: 600;
  margin: 1.1rem 0 .5rem;
}
.panel-b ul, .panel-b ol { margin: 0 0 .9rem; padding-left: 1.2rem; display: flex; flex-direction: column; gap: .35rem; }
.panel-b li { font-size: .93rem; }
.panel-b blockquote {
  margin: 0 0 .9rem;
  padding: .6rem .9rem;
  background: var(--ground-2);
  border-left: 3px solid var(--rule);
  font-style: italic;
  color: var(--ink-2);
  font-size: .93rem;
}
.panel-b table { width: 100%; border-collapse: collapse; margin: 0 0 .9rem; font-size: .88rem; }
.panel-b td { padding: .5rem .6rem .5rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.panel-b td.k { font-weight: 600; width: 34%; }
.panel-b td.v { color: var(--ink-2); }
.panel-b tr:last-child td { border-bottom: 0; }

.callout {
  background: var(--warm-sf);
  border-left: 3px solid var(--warm);
  padding: .9rem 1rem .2rem;
  margin-top: 1rem;
}
.callout h4 { margin-top: 0; color: var(--warm); }

/* ───────── timeline ───────── */
.chart-scroll { overflow-x: auto; }
.chart { min-width: 20rem; font-size: .82rem; }
.taxis, .trow {
  display: grid;
  grid-template-columns: 8rem 1fr;
  align-items: center;
  gap: .6rem;
}
.taxis { margin-bottom: .4rem; align-items: end; }
.taxis .ttrack { height: 2.1rem; }
.tick {
  position: absolute;
  bottom: 0;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .1rem;
  font-family: var(--mono);
  font-size: .7rem;
  line-height: 1.1;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.tick.is-first { transform: translateX(-20%); }
.tick.is-last { transform: translateX(-80%); }
.tick b { font-weight: 600; }
.tick i { font-style: normal; font-size: .62rem; opacity: .8; }
.tbody { display: flex; flex-direction: column; gap: .4rem; }
.trow { min-height: 1.6rem; }
.trow.is-past { opacity: .45; }
.tlabel {
  display: flex;
  flex-direction: column;
  gap: .05rem;
  min-width: 0;
}
.tname {
  font-size: .82rem;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tdate {
  font-family: var(--mono);
  font-size: .63rem;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.ttrack {
  position: relative;
  height: 1.1rem;
  border-left: 1px solid var(--rule);
}
.bar {
  position: absolute; top: 50%; transform: translateY(-50%);
  height: .7rem;
  background: var(--accent-sf);
  border: 1px solid var(--accent);
  border-radius: 999px;
  min-width: .7rem;
}
.dot {
  position: absolute; top: 50%;
  width: .62rem; height: .62rem;
  transform: translate(-50%, -50%) rotate(45deg);
  background: var(--ink-3);
}
.dot.is-accent { background: var(--accent); }
.nowline {
  position: absolute; top: -.25rem; bottom: -.25rem;
  width: 0;
  border-left: 2px dashed var(--warm);
  pointer-events: none;
}

.miles { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .45rem; }
.mile {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: .6rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: .6rem .8rem;
  font-size: .9rem;
}
.mile b {
  display: flex;
  flex-direction: column;
  gap: .1rem;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.mile-d { font-size: .82rem; color: var(--ink); }
.mile-w { font-size: .68rem; color: var(--ink-3); font-weight: 400; }
.mile.is-now .mile-d { color: var(--warm); }
.mile-t { display: flex; align-items: flex-start; gap: .5rem; }
.mile-t .ic { width: 1.05rem; height: 1.05rem; color: var(--ink-3); margin-top: .2rem; }
.mile.is-now .mile-t .ic { color: var(--warm); }
.mile.is-past { opacity: .5; }
.mile.is-now { border-color: var(--warm); background: var(--warm-sf); }
.mile.is-now .mile-w { color: var(--warm); }

/* ───────── bottom tabs ───────── */
.tabs {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 30;
  background: var(--ground);
  border-top: 1px solid var(--rule);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.tabs-in { display: grid; grid-template-columns: repeat(3, 1fr); gap: .25rem; padding-block: .4rem; }
.tab {
  appearance: none; background: none; border: 0;
  color: var(--ink-3);
  font: inherit; font-size: .7rem;
  display: flex; flex-direction: column; align-items: center; gap: .15rem;
  padding: .35rem .2rem;
  cursor: pointer;
  border-radius: 8px;
}
.tab svg { width: 20px; height: 20px; }
.tab { min-height: 2.9rem; transition: opacity .12s ease; }
.tab:active { opacity: .55; }
.tab.is-on { color: var(--accent); }
.tab.is-on svg { color: var(--accent); }

@media (min-width: 46rem) {
  .mile { grid-template-columns: 6rem 1fr; }
  .taxis, .trow { grid-template-columns: 11rem 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}