/* Teafinity tools — the four interactive pages.
   Tokens only (main.css owns the palette). Light-only, with one deliberate
   exception: the timer panel dims to --timer-night while it runs, which is a
   kitchen-glare feature, not a theme. */

.tool-head { margin-bottom: 20px; }
.tool-head h1 { margin-bottom: .3em; }
.tool-lead { font-size: 1.0625rem; color: var(--ink); max-width: 60ch; }

.tool-badges { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 20px; }
.tool-badges li { background: var(--leaf-tint); color: var(--ink); font-size: .8125rem; font-weight: 500; padding: 4px 12px; border-radius: var(--r-round); }

/* ---- panel --------------------------------------------------------------- */
.tool-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-m);
  padding: 24px 20px 20px;
  --ring-track: var(--surface-alt);
  --panel-ink: var(--ink);
  --panel-text: var(--text);
  transition: background 300ms var(--ease), color 300ms var(--ease);
}
@media (min-width: 700px) { .tool-panel { padding: 32px; } }

.tool-panel[data-phase="running"] {
  background: var(--timer-night);
  --ring-track: rgba(232, 221, 212, .18);
  --panel-ink: var(--canvas);
  --panel-text: #C9BEB0;
}
.tool-panel[data-phase="running"] .pill { background: rgba(232, 221, 212, .14); color: var(--canvas); }
.tool-panel[data-phase="running"] .pill.is-current { background: var(--leaf); color: var(--ink); }
.tool-panel[data-phase="running"] .tool-toggles label,
.tool-panel[data-phase="running"] .tool-hint { color: var(--panel-text); }
.tool-panel[data-phase="running"] .btn-ghost { border-color: rgba(232, 221, 212, .35); color: var(--canvas); }

/* ---- ensō progress ring: one custom property, no layout, composited ------- */
.tool-ring {
  --p: 0;
  position: relative;
  width: min(280px, 74vw);
  aspect-ratio: 1 / 1;
  margin: 8px auto 16px;
  display: grid;
  place-items: center;
}
.tool-ring::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from -90deg, var(--leaf) calc(var(--p) * 360deg), var(--ring-track) 0);
  -webkit-mask: radial-gradient(closest-side, #0000 79%, #000 80%);
  mask: radial-gradient(closest-side, #0000 79%, #000 80%);
}
@supports not (mask: radial-gradient(#000, #000)) {
  .tool-ring::before { background: none; border: 10px solid var(--ring-track); }
}
.tool-ring-face { position: relative; text-align: center; padding: 0 12px; }
.tool-step { font-size: .8125rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--leaf-text); margin: 0 0 2px; }
.tool-time { font-size: clamp(2.75rem, 12vw, 3.75rem); font-weight: 600; line-height: 1.05; color: var(--panel-ink); font-variant-numeric: tabular-nums; margin: 0; }
.tool-state { font-size: .875rem; color: var(--panel-text); margin: 4px 0 0; }
.tool-teaname { text-align: center; font-weight: 600; color: var(--panel-ink); margin: 0; }
.tool-brewline { text-align: center; font-size: .875rem; color: var(--panel-text); font-variant-numeric: tabular-nums; margin: 2px 0 0; min-height: 1.4em; }

/* ---- infusion pill rail -------------------------------------------------- */
.tool-rail {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  padding: 0;
  margin: 0 0 20px;
  min-height: 62px;
}
.tool-rail .pill { font-size: .75rem; padding: 3px 10px; }
.pill.is-current { background: var(--accent); color: var(--on-accent); }
.pill.is-past { opacity: .45; }

/* ---- controls ------------------------------------------------------------ */
.tool-controls { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 12px; }
.tool-controls .btn { min-width: 96px; text-align: center; border: none; font: inherit; font-weight: 600; cursor: pointer; }
.btn-ghost { display: inline-block; padding: 10px 18px; border-radius: var(--r-m); background: transparent; border: 1.5px solid var(--line); color: var(--text); font: inherit; font-weight: 600; cursor: pointer; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-deep); }
.tool-hint { text-align: center; font-size: .8125rem; color: var(--text-muted); margin: 0 auto 16px; max-width: 42ch; }

.tool-toggles { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; border-top: 1px solid var(--line); padding-top: 14px; }
.tool-toggles label { display: inline-flex; align-items: center; gap: 6px; font-size: .875rem; color: var(--text); cursor: pointer; }
.tool-toggles input { accent-color: var(--accent); width: 18px; height: 18px; }

.tool-done { background: var(--leaf-tint); border-radius: var(--r-m); padding: 16px; margin-top: 16px; text-align: center; }
.tool-done h2 { font-size: 1.125rem; margin: 0 0 .4em; }
.tool-done p { margin: 0 auto; font-size: .9375rem; }

.tool-noscript { background: var(--surface-alt); border: 1px dashed var(--line); border-radius: var(--r-s); padding: 10px 14px; font-size: .875rem; margin: 0 0 16px; }

/* ---- pickers ------------------------------------------------------------- */
.tool-picker { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; margin-bottom: 16px; }
.tool-picker .field { flex: 1 1 220px; }
.tool-picker label { display: block; font-size: .8125rem; font-weight: 600; color: var(--panel-text); margin-bottom: 4px; }
.tool-picker input[type="search"], .tool-picker input[type="text"] {
  width: 100%; padding: 10px 14px; border: 1.5px solid var(--line); border-radius: var(--r-s);
  background: var(--surface); color: var(--ink); font: inherit;
}
.tool-picker input::placeholder { color: var(--text-muted); }

.chip-picker { display: flex; flex-wrap: wrap; gap: 8px; border: 0; padding: 0; margin: 0 0 16px; }
.chip-picker legend { font-size: .8125rem; font-weight: 600; color: var(--text); margin-bottom: 6px; padding: 0; }
.chip-picker input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chip-picker label {
  display: inline-block; padding: 8px 16px; border-radius: var(--r-round);
  border: 1.5px solid var(--line); background: var(--surface); color: var(--text);
  font-size: .875rem; font-weight: 500; cursor: pointer;
}
.chip-picker input:checked + label { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.chip-picker input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }

.range-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.range-row label { font-size: .8125rem; font-weight: 600; color: var(--text); }
.range-row input[type="range"] { flex: 1 1 220px; accent-color: var(--accent); }
.range-row output { font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; min-width: 6.5ch; }

/* ---- steppers ------------------------------------------------------------ */
.stepper-row { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; margin: 4px 0 16px; }
.stepper { text-align: center; }
.stepper > span { display: block; font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); margin-bottom: 4px; }
.stepper-controls { display: flex; align-items: center; gap: 6px; }
.stepper input {
  width: 4.5ch; padding: 8px 4px; text-align: center; font: inherit; font-weight: 600;
  font-variant-numeric: tabular-nums; border: 1.5px solid var(--line); border-radius: var(--r-s);
  background: var(--surface); color: var(--ink);
}
.stepper button { width: 38px; height: 38px; border-radius: 50%; border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); font-size: 1.125rem; line-height: 1; cursor: pointer; }
.stepper button:hover { border-color: var(--accent); }

/* ---- preset links -------------------------------------------------------- */
.preset-grid { list-style: none; padding: 0; margin: 0 0 8px; display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.preset {
  display: block; padding: 12px 14px; border-radius: var(--r-m); text-decoration: none;
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-s);
}
.preset:hover { border-color: var(--accent); }
.preset[aria-current] { border-color: var(--accent); background: var(--leaf-tint); }
.preset-name { display: block; font-weight: 600; color: var(--ink); }
.preset-meta { display: block; font-size: .8125rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }

/* ---- result card --------------------------------------------------------- */
.result-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-m); box-shadow: var(--shadow-s); padding: 20px; }
.result-card h2 { margin-top: 0; font-size: 1.25rem; }
.result-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); margin: 0 0 12px; }
.result-grid dt { font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); }
.result-grid dd { margin: 2px 0 0; font-size: 1.375rem; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.result-gongfu { font-size: .9375rem; border-top: 1px solid var(--line); padding-top: 12px; margin: 0 0 12px; }
.result-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---- data tables --------------------------------------------------------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; font-size: .9375rem; background: var(--surface); }
.data-table caption { caption-side: top; text-align: left; font-size: .875rem; color: var(--text-muted); padding: 0 0 10px; }
.data-table th, .data-table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.data-table thead th { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); font-weight: 600; background: var(--surface); }
.data-table tbody th { font-weight: 600; color: var(--ink); white-space: normal; }
.data-table tbody tr:nth-child(even) { background: var(--surface-alt); }
.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table a { text-decoration: none; }
.data-table a:hover { text-decoration: underline; }
.data-table .row-load { display: block; font-size: .75rem; font-weight: 500; color: var(--text-muted); }
.data-table .row-load:hover { color: var(--accent-deep); }
.data-table .ladder-cell { white-space: nowrap; }
.data-table .ladder-cell .pill { margin-right: 4px; }

th[data-sort] button {
  font: inherit; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 600;
  background: none; border: 0; padding: 0; color: inherit; cursor: pointer; display: inline-flex; align-items: center; gap: 4px;
}
th[data-sort] button::after { content: "↕"; opacity: .45; font-size: .875rem; }
th[aria-sort="ascending"] button::after { content: "↑"; opacity: 1; }
th[aria-sort="descending"] button::after { content: "↓"; opacity: 1; }

.filter-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
.filter-chips button {
  font: inherit; font-size: .875rem; padding: 6px 14px; border-radius: var(--r-round);
  border: 1.5px solid var(--line); background: var(--surface); color: var(--text); cursor: pointer;
}
.filter-chips button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.table-count { font-size: .875rem; color: var(--text-muted); margin: 0 0 8px; }
.table-source { font-size: .75rem; color: var(--text-muted); margin: 10px 0 0; }

/* ---- cut-off calculator -------------------------------------------------- */
.cutoff-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-m); padding: 20px; box-shadow: var(--shadow-s); }
.cutoff-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 12px; }
.cutoff-row input[type="time"] { padding: 9px 12px; border: 1.5px solid var(--line); border-radius: var(--r-s); font: inherit; background: var(--surface); color: var(--ink); }
.cutoff-result { font-size: 1.375rem; font-weight: 600; color: var(--ink); margin: 0 0 6px; font-variant-numeric: tabular-nums; }

/* ---- hub cards ----------------------------------------------------------- */
.tool-cards { list-style: none; padding: 0; margin: 0 0 32px; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.tool-card { display: block; height: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-m); box-shadow: var(--shadow-s); padding: 20px; text-decoration: none; transition: box-shadow 150ms var(--ease), transform 150ms var(--ease); }
.tool-card:hover { box-shadow: var(--shadow-m); transform: translateY(-2px); }
.tool-card h2 { font-size: 1.125rem; margin: 0 0 .4em; }
.tool-card p { font-size: .9375rem; color: var(--text); margin: 0; max-width: none; }

.tool-related { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tool-related a { display: inline-block; padding: 8px 16px; border-radius: var(--r-round); border: 1px solid var(--line); background: var(--surface); text-decoration: none; font-size: .875rem; font-weight: 500; }
.tool-related a:hover { border-color: var(--accent); }

/* ---- prose / steps / faq ------------------------------------------------- */
.tool-prose { max-width: 38rem; }
.tool-steps { max-width: 38rem; padding-left: 1.4em; }
.tool-steps li { margin-bottom: .5em; }
.tool-faq { max-width: 42rem; }
.tool-faq details { border-bottom: 1px solid var(--line); padding: 10px 0; }
.tool-faq summary { font-weight: 600; color: var(--ink); cursor: pointer; list-style: none; display: flex; gap: 10px; align-items: baseline; }
.tool-faq summary::-webkit-details-marker { display: none; }
.tool-faq summary::before { content: ""; flex: 0 0 auto; width: 10px; height: 10px; border-radius: 0 999px 0 999px; background: var(--leaf); transform: rotate(0deg); transition: transform 150ms var(--ease); }
.tool-faq details[open] summary::before { transform: rotate(90deg); }
.tool-faq details p { margin: .6em 0 0 20px; }

/* Below-fold sections: skip layout/paint until they scroll near the viewport. */
.below-fold { content-visibility: auto; contain-intrinsic-size: auto 900px; }

@media print {
  .tool-panel, .tool-controls, .tool-toggles, .filter-chips, .result-actions, .tool-picker, .tool-related { display: none !important; }
  .below-fold { content-visibility: visible; }
  .data-table { font-size: .75rem; }
}

/* ---- design refresh (Claude Design comp) ---- */
.tool-chips { list-style: none; padding: 0; margin: 0 0 16px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.tool-chip { display: flex; align-items: center; gap: 8px; border-radius: var(--r-round); padding: 8px 16px 8px 9px; font-weight: 600; font-size: .875rem; text-decoration: none; background: var(--leaf-tint); color: var(--ink); border: 1px solid var(--leaf-tint); transition: background 150ms var(--ease); }
.tool-chip:hover { background: #DDE3CC; color: var(--ink); }
.tool-chip img { width: 26px; height: 26px; border-radius: 8px; object-fit: cover; display: block; }
.is-night .tool-chip { background: rgba(232,221,212,.08); color: var(--canvas); border-color: rgba(232,221,212,.25); }

.tool-controls-main { display: flex; justify-content: center; align-items: center; gap: 16px; flex-wrap: wrap; }
.tool-adjust { background: var(--surface-alt); color: var(--ink); border: none; border-radius: var(--r-round); padding: 12px 18px; font-weight: 600; font-size: .9375rem; cursor: pointer; font-family: var(--font); font-variant-numeric: tabular-nums; }
.is-night .tool-adjust { background: rgba(232,221,212,.10); color: var(--canvas); }
.tool-toggle-big { min-width: 72px; min-height: 72px; border-radius: var(--r-round); display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(45,36,22,.14); border: none; cursor: pointer; font-size: 1rem; font-family: var(--font); }
.is-night .tool-toggle-big { background: var(--canvas); color: var(--ink); }
.tool-controls-sub { display: flex; justify-content: center; align-items: center; gap: 22px; margin-top: 14px; flex-wrap: wrap; }
.tool-textbtn { background: none; border: none; color: var(--text-muted); font-size: .875rem; font-weight: 500; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; font-family: var(--font); }
.is-night .tool-textbtn { color: rgba(232,221,212,.65); }

.switch-label { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.switch-label input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-label input:checked + .switch { background: var(--accent); }
.switch-label input:checked + .switch::after { left: 16px; }
.switch-label input:focus-visible + .switch { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---- night-panel contrast repairs ----
   The running timer swaps the panel to --timer-night (#2D2416) but several
   tokens kept their light-mode values against it: the focus ring dropped to
   2.15:1 (WCAG 2.4.11 needs 3:1) and three text pairs fell under AA. Each
   value below is measured against #2D2416. */
.tool-panel[data-phase="running"] :focus-visible { outline-color: var(--canvas); }        /* 11.43:1 */
.tool-panel[data-phase="running"] .tool-toggles input { accent-color: #9DB47A; }          /*  6.72:1 */
.tool-panel[data-phase="running"] .stepper > span { color: var(--panel-text); }           /*  8.34:1 */
.tool-panel[data-phase="running"] .tool-step { color: #9DB47A; }                          /*  6.72:1 */
.tool-panel[data-phase="running"] .pill.is-current { background: var(--accent); color: var(--on-accent); } /* 6.94:1 */
.tool-panel[data-phase="running"] .btn-ghost { border-color: rgba(232,221,212,.55); }     /*  3.1:1  */

/* Completed infusions are data ("3: 20s"), not decoration — 45% opacity put
   them at 2.60:1 light / 2.93:1 night. */
.pill.is-past { opacity: .7; }

/* Inputs whose background matches the surface behind them need a boundary that
   actually reads as one (WCAG 1.4.11, 3:1). --line is 1.54:1 on --surface. */
.tool-picker input[type="search"], .chip-picker label { border-color: var(--line-strong); }
.tool-toggles input { width: 20px; height: 20px; }
.tool-toggles label { min-height: 24px; padding-block: 2px; }

/* The visible caption lives outside .table-wrap: a <caption> inherits its
   table's width (985px on the gong fu table), so inside the scroll box its
   text was cut mid-word at the viewport edge. */
.table-intro { font-size: .875rem; color: var(--text-muted); margin: 0 0 10px; max-width: 65ch; }
.data-table .row-load { min-height: 24px; }

/* The picker's buttons are bottom-aligned against a 48px field; the default
   .btn padding made them 39px, so they visibly hung low beside it. */
.tool-picker .btn, .tool-picker .btn-ghost {
  min-height: 48px; display: inline-flex; align-items: center; justify-content: center;
}