/* Hanzi Map - ink on paper.
   Known characters are written in solid ink; unknown ones are still blank paper.
   Cinnabar seal-red is reserved for the selected character and progress. */

:root {
  --paper: #efede4;
  --paper-raised: #f6f5ee;
  --paper-deep: #e6e3d6;
  --ink: #23211b;
  --ink-soft: #57544a;
  --ink-faint: #8d897b;
  --line: #d6d2c2;
  --seal: #a63a2b;
  --seal-deep: #87291d;
  --font-ui: "Instrument Sans", system-ui, sans-serif;
  --font-hanzi: "Noto Serif SC", "Noto Serif CJK SC", serif;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  font-family: var(--font-ui);
  background: var(--paper);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ---------- top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-raised);
  flex: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  flex: none;
}

/* The brand mark: a carved seal (印章) - cinnabar with a rim and a thin paper
   line inside it. The padding nudge puts the glyph on the measured optical
   center: Noto Serif SC sits ~1.5px low in this box without it. */
.seal {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(160deg, #b2452e, var(--seal) 55%, #96301f);
  color: var(--paper-raised);
  font-family: var(--font-hanzi);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  padding-bottom: 1.25px;
  box-shadow:
    inset 0 0 0 2px #9c3626,
    inset 0 0 0 3px rgba(246, 245, 238, .75),
    0 1px 2px rgba(35, 33, 27, .28);
  text-shadow: 0 1px 1px rgba(135, 41, 29, .45);
  transition: transform .18s ease;
}

.brand:hover .seal { transform: rotate(-5deg) scale(1.05); }

.brand-text {
  font-family: var(--font-hanzi);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .5px;
}

.brand-text em {
  font-family: var(--font-ui);
  font-style: normal;
  font-weight: 400;
  font-size: 13px;
  color: var(--ink-faint);
  margin-left: 6px;
}

.search {
  position: relative;
  flex: 1;
  max-width: 420px;
}

.search input {
  width: 100%;
  padding: 8px 14px;
  font: 500 14px var(--font-ui);
  color: var(--ink);
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 999px;
  outline: none;
}

.search input:focus { border-color: var(--ink-soft); }
.search input::placeholder { color: var(--ink-faint); }

.search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  margin: 0;
  padding: 4px;
  list-style: none;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(35,33,27,.14);
  max-height: 330px;
  overflow-y: auto;
  z-index: 30;
}

.search-results li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 7px;
  cursor: pointer;
}

.search-results li:hover, .search-results li.active { background: var(--paper-deep); }
.search-results .r-char { font-family: var(--font-hanzi); font-size: 20px; font-weight: 500; }
.search-results .r-pinyin { color: var(--seal); font-weight: 600; font-size: 13px; flex: none; }
.search-results .r-def {
  color: var(--ink-soft);
  font-size: 12.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-results .r-known { margin-left: auto; font-size: 11px; color: var(--ink-faint); flex: none; }

.recs-btn {
  margin-left: auto;
  flex: none;
  font: 600 13px var(--font-ui);
  color: var(--seal);
  background: transparent;
  border: 1.5px solid var(--seal);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
}
.recs-btn:hover { background: var(--seal); color: var(--paper-raised); }

.progress {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.progress-nums { font-size: 13px; font-weight: 600; color: var(--ink-soft); font-variant-numeric: tabular-nums; }

.progress-track {
  width: 130px;
  height: 5px;
  border-radius: 3px;
  background: var(--paper-deep);
  overflow: hidden;
}

.progress-fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--seal);
  border-radius: 3px;
  transition: width .6s ease;
}

/* ---------- auth ---------- */

.auth { flex: none; }

.signin-btn {
  font: 600 13px var(--font-ui);
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
}
.signin-btn:hover { border-color: var(--ink-soft); }

.user-menu { position: relative; }

.user-menu summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font: 600 13px var(--font-ui);
  color: var(--ink-soft);
  padding: 4px 6px;
  border-radius: 999px;
}
.user-menu summary::-webkit-details-marker { display: none; }
.user-menu summary:hover { background: var(--paper-deep); }

.user-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--seal);
  color: var(--paper-raised);
  display: grid;
  place-items: center;
  font: 700 13px var(--font-ui);
  flex: none;
}

.user-menu .menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 40;
  display: flex;
  flex-direction: column;
  min-width: 180px;
  padding: 5px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(35,33,27,.14);
}

.user-menu .menu button {
  font: 500 13px var(--font-ui);
  color: var(--ink);
  text-align: left;
  background: none;
  border: none;
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
}
.user-menu .menu button:hover { background: var(--paper-deep); }

.known-toggle {
  width: 100%;
  margin-top: 10px;
  padding: 7px;
  font: 600 12.5px var(--font-ui);
  color: var(--ink-soft);
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}
.known-toggle:hover { border-color: var(--seal); color: var(--seal-deep); }
.known-toggle.is-known {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper-raised);
}

/* ---------- bulk select & import ---------- */

.recs-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  padding: 7px 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 9px;
  font: 600 12px var(--font-ui);
  color: var(--ink-soft);
}

.recs-actions label { display: flex; align-items: center; gap: 6px; cursor: pointer; }

.recs-actions button {
  font: 600 12px var(--font-ui);
  color: var(--paper-raised);
  background: var(--seal);
  border: none;
  border-radius: 7px;
  padding: 5px 10px;
  cursor: pointer;
}
.recs-actions button:disabled { background: var(--ink-faint); cursor: default; }

.rec-check { margin: 2px 0 0; accent-color: var(--seal); align-self: flex-start; }

.import-dialog {
  max-width: 420px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper-raised);
  color: var(--ink);
  padding: 20px 22px;
  font-family: var(--font-ui);
}
.import-dialog::backdrop { background: rgba(35,33,27,.35); }
.import-dialog h2 { margin: 0 0 6px; font-size: 16px; }
.import-dialog p { font-size: 12.5px; color: var(--ink-soft); line-height: 1.5; margin: 0 0 10px; }
.import-dialog textarea {
  width: 100%;
  font: 14px var(--font-hanzi);
  background: var(--paper);
  color: var(--ink);
  border: 1.5px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  resize: vertical;
}
.import-buttons { display: flex; justify-content: flex-end; gap: 8px; margin-top: 10px; }
.import-buttons .focus-btn { width: auto; margin: 0; padding: 8px 14px; }
.import-buttons #import-cancel {
  font: 600 13px var(--font-ui);
  color: var(--ink-soft);
  background: none;
  border: none;
  cursor: pointer;
}
.import-result { min-height: 1em; font-weight: 600; color: var(--seal); }

/* ---------- stage ---------- */

.stage {
  flex: 1;
  display: flex;
  min-height: 0;
  position: relative;
}

.canvas-wrap {
  position: relative;
  flex: 1;
  min-width: 0;
}

#graph-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: grab;
  /* Touch gestures pan/zoom the map itself, never the page. */
  touch-action: none;
}

#graph-canvas:active { cursor: grabbing; }

.controls {
  position: absolute;
  top: 14px;
  left: 16px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.filters {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--paper-raised) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 12px;
  backdrop-filter: blur(3px);
  max-width: 310px;
}

/* Collapses the filter card on small screens; hidden on desktop. */
.filters-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  font: 600 12.5px var(--font-ui);
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper-raised) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  backdrop-filter: blur(3px);
}
.filters-toggle::after { content: "▾"; font-size: 10px; }
.controls.filters-open .filters-toggle { color: var(--ink); border-color: var(--ink-soft); }
.controls.filters-open .filters-toggle::after { content: "▴"; }

/* The Known/HSK switch lives in the legend on desktop and in the filter card
   on small screens. */
.color-row { display: none; }
.color-row .color-mode { border-top: none; padding-top: 0; flex: 1; }

.filter-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.filter-label {
  font: 600 12px var(--font-ui);
  color: var(--ink-soft);
  width: 62px;
  flex: none;
}

.filters select {
  font: 600 12.5px var(--font-ui);
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--line);
  padding: 1px 2px;
  outline: none;
  cursor: pointer;
}

.hsk-toggles { display: flex; gap: 3px; }

.hsk-btn {
  font: 600 11px var(--font-ui);
  color: var(--ink-faint);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  min-width: 22px;
  padding: 3px 3px;
  cursor: pointer;
  white-space: nowrap;
}

.hsk-btn.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper-raised);
}


.view-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper-raised) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(3px);
}

.view-chip input[type="number"],
.filters input[type="number"] {
  font: 600 13px var(--font-ui);
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--line);
  padding: 1px 2px;
  outline: none;
  width: 3.8em;
  text-align: center;
  appearance: textfield;
  -moz-appearance: textfield;
}
.view-chip input[type="number"]::-webkit-outer-spin-button,
.view-chip input[type="number"]::-webkit-inner-spin-button,
.filters input[type="number"]::-webkit-outer-spin-button,
.filters input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.view-chip input[type="number"]::-webkit-calendar-picker-indicator,
.filters input[type="number"]::-webkit-calendar-picker-indicator {
  display: none !important;
}
.view-chip input[type="number"]:focus,
.filters input[type="number"]:focus { border-bottom-color: var(--seal); }

.icon-btn {
  font: 600 15px/1 var(--font-ui);
  color: var(--ink-soft);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 6px;
}
.icon-btn:hover { color: var(--seal); background: var(--paper-deep); }

.back-btn {
  font: 600 13px var(--font-ui);
  color: var(--seal);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

/* Focus-mode note: family members hidden by the frequency/HSK filters. */
.hidden-note {
  font: 500 12px var(--font-ui);
  color: var(--ink-soft);
  background: none;
  border: 1px dashed var(--ink-faint);
  border-radius: 999px;
  padding: 2px 10px;
  cursor: pointer;
  white-space: nowrap;
}
.hidden-note:hover { color: var(--ink); border-color: var(--ink-soft); }

/* Shown while a view is being fetched and laid out. */
.loading-note {
  position: absolute;
  top: 74px;
  left: 50%;
  transform: translateX(-50%);
  font: 500 13px var(--font-ui);
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper-raised) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  pointer-events: none;
}
.back-btn:hover { color: var(--seal-deep); text-decoration: underline; }

#focus-label { font-weight: 600; color: var(--ink); }
#focus-label .focus-char { font-family: var(--font-hanzi); font-size: 16px; }

.legend {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--paper-raised) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 12px;
  backdrop-filter: blur(3px);
}

.legend-items { display: flex; flex-direction: column; gap: 5px; }

.legend-item { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-soft); }

.legend-swatch {
  width: 14px;
  height: 14px;
  flex: none;
  border-radius: 4px;
}
.legend-swatch.known { background: var(--ink); }
.legend-swatch.unknown { background: var(--paper-raised); border: 1.5px solid var(--ink-soft); }
.legend-swatch.component { background: transparent; border: 1.5px dashed var(--ink-faint); border-radius: 50%; }
.legend-swatch.selected { background: var(--seal); }
.legend-arrow {
  width: 14px;
  flex: none;
  text-align: center;
  font-size: 14px;
  color: var(--ink-soft);
}

.legend-swatch.hsk-scale {
  width: 84px;
  border: none;
  border-radius: 3px;
  /* One block per level: gold, teal, blue, plum, umber, violet, ink. */
  background: linear-gradient(90deg,
    #c8942d 0 14.28%, #26a087 0 28.57%, #4776bb 0 42.86%, #88437b 0 57.14%,
    #753b07 0 71.43%, #432b74 0 85.71%, #292720 0 100%);
}

.color-mode {
  display: flex;
  gap: 4px;
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

.mode-btn {
  flex: 1;
  font: 600 12px var(--font-ui);
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 8px;
  cursor: pointer;
}

.mode-btn.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper-raised);
}

.tooltip {
  position: absolute;
  z-index: 20;
  pointer-events: none;
  max-width: 260px;
  padding: 8px 11px;
  background: var(--ink);
  color: var(--paper-raised);
  border-radius: 9px;
  font-size: 12.5px;
  line-height: 1.45;
  box-shadow: 0 6px 20px rgba(35,33,27,.3);
}

.tooltip .t-head { font-size: 14px; }
.tooltip .t-head .t-char { font-family: var(--font-hanzi); font-size: 18px; margin-right: 6px; }
.tooltip .t-head .t-pinyin { color: #e8b1a4; font-weight: 600; }
.tooltip .t-def { color: #cdc9bc; }
.tooltip .t-tags { color: #a5a193; font-size: 11.5px; margin-top: 2px; }

.hint {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  color: var(--ink-faint);
  background: color-mix(in srgb, var(--paper-raised) 80%, transparent);
  padding: 4px 12px;
  border-radius: 999px;
  pointer-events: none;
  transition: opacity 1s ease;
  white-space: nowrap;
}

.hint.faded { opacity: 0; }

/* ---------- detail panel ---------- */

.panel {
  position: relative;
  width: 304px;
  flex: none;
  overflow-y: auto;
  padding: 22px 22px 28px;
  background: var(--paper-raised);
  border-left: 1px solid var(--line);
}

.panel-close {
  position: absolute;
  top: 10px;
  right: 12px;
  font: 400 20px/1 var(--font-ui);
  color: var(--ink-faint);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.panel-close:hover { color: var(--ink); }

/* The practice square: 米字格 guide lines in the pale red of exercise paper. */
.mizige {
  position: relative;
  width: 148px;
  height: 148px;
  margin: 4px auto 14px;
  background: var(--paper);
}

.mizige svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.mizige svg rect { stroke: #d9a79b; stroke-width: 2.5; }
.mizige svg line { stroke: #e8cfc6; stroke-width: 1; stroke-dasharray: 4 3; }

.mizige-char {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-hanzi);
  font-weight: 500;
  font-size: 98px;
  color: var(--ink);
}

.mizige-writer {
  position: absolute;
  inset: 0;
  cursor: pointer;
}

.char-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin: -6px 0 10px;
}

.char-action {
  font: 600 11.5px var(--font-ui);
  color: var(--ink-faint);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 6px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.char-action:hover { color: var(--seal); }

.copy-glyph {
  font-family: var(--font-hanzi);
  font-size: 15px;
  color: var(--ink);
  user-select: all;
}

.detail-pinyin {
  margin: 0;
  text-align: center;
  font-size: 19px;
  font-weight: 600;
  color: var(--seal);
}

.detail-definition {
  margin: 6px 0 12px;
  text-align: center;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-soft);
}

.detail-meta {
  list-style: none;
  margin: 0 0 4px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 5px 14px;
  font-size: 12.5px;
  color: var(--ink-soft);
}

.detail-meta b { color: var(--ink); font-weight: 600; }
.detail-meta a {
  color: var(--ink-faint);
  text-decoration: underline dotted;
  text-underline-offset: 2px;
}
.detail-meta a:hover { color: var(--seal); }
.detail-meta .known-yes { color: var(--seal); font-weight: 600; }

.radical-link {
  font-family: var(--font-hanzi);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 6px;
  cursor: pointer;
  line-height: 1.4;
}
.radical-link:hover { border-color: var(--seal); color: var(--seal-deep); }

.detail-etymology {
  font-size: 12.5px;
  font-style: italic;
  color: var(--ink-faint);
  line-height: 1.5;
  margin: 10px 0 0;
}

.detail-section { margin-top: 18px; }
.detail-section[hidden] { display: none; }

.detail-section h2 {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-faint);
  margin: 0 0 8px;
}

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  font: 500 12px var(--font-ui);
  color: var(--ink-soft);
}

.chip:hover { border-color: var(--seal); color: var(--seal-deep); }
.chip .c-char { font-family: var(--font-hanzi); font-size: 18px; color: var(--ink); }
.chip.known .c-char { color: var(--paper-raised); }
.chip.known { background: var(--ink); border-color: var(--ink); color: var(--ink-faint); }

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
  gap: 6px;
}

.tile {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  font-family: var(--font-hanzi);
  font-size: 21px;
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  color: var(--ink);
  padding: 0;
}

.tile:hover { border-color: var(--seal); }
.tile.known { background: var(--ink); border-color: var(--ink); color: var(--paper-raised); }

.focus-btn {
  width: 100%;
  margin-top: 22px;
  padding: 9px;
  font: 600 13.5px var(--font-ui);
  color: var(--paper-raised);
  background: var(--seal);
  border: none;
  border-radius: 9px;
  cursor: pointer;
}

.focus-btn:hover { background: var(--seal-deep); }

/* ---------- recommendations ---------- */

.recs-title {
  font: 700 17px var(--font-ui);
  margin: 4px 0 8px;
}

.recs-sort-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font: 600 12px var(--font-ui);
  color: var(--ink-soft);
}

.recs-sort-row select {
  font: 600 12.5px var(--font-ui);
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--line);
  padding: 1px 2px;
  outline: none;
  cursor: pointer;
}

.recs-scope {
  margin: 0 0 8px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--seal);
}

.factor.primary .factor-bar span { background: var(--seal); }
.factor.primary .factor-label { color: var(--ink); font-weight: 600; }

.recs-method {
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink-faint);
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

/* Shown when the current scope is fully learned: a congratulation in the
   style of a teacher's stamp, pointing at the filters for the next level. */
.recs-done {
  text-align: center;
  padding: 24px 10px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}
.recs-done-seal {
  display: inline-grid;
  place-items: center;
  width: 66px;
  height: 66px;
  border-radius: 12px;
  background: var(--seal);
  color: var(--paper-raised);
  font-family: var(--font-hanzi);
  font-size: 24px;
  font-weight: 700;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.25);
  margin-bottom: 14px;
}
.recs-done p { margin: 0 0 8px; }
.recs-done b { color: var(--ink); font-size: 14px; }

.recs-list { display: flex; flex-direction: column; gap: 12px; }

.rec { display: flex; gap: 10px; }

.rec-char {
  flex: none;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  font-family: var(--font-hanzi);
  font-size: 26px;
  color: var(--ink);
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 9px;
  cursor: pointer;
  padding: 0;
}
.rec-char:hover { border-color: var(--seal); }

.rec-body { flex: 1; min-width: 0; }

.rec-head {
  font-size: 12.5px;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.rec-head b { color: var(--seal); font-weight: 600; margin-right: 5px; }

.rec-score {
  display: block;
  height: 4px;
  margin: 5px 0 4px;
  border-radius: 2px;
  background: var(--paper-deep);
  overflow: hidden;
}
.rec-score-fill { display: block; height: 100%; background: var(--seal); border-radius: 2px; }

.rec-why summary {
  font: 600 11px var(--font-ui);
  color: var(--ink-faint);
  cursor: pointer;
  list-style: none;
}
.rec-why summary::-webkit-details-marker { display: none; }
.rec-why summary:hover { color: var(--seal); }
.rec-why[open] summary { color: var(--ink-soft); }

.rec-factors { margin-top: 6px; display: flex; flex-direction: column; gap: 3px; }

.factor {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  color: var(--ink-soft);
}
.factor-label { width: 78px; flex: none; }
.factor-bar {
  flex: 1;
  height: 3px;
  border-radius: 2px;
  background: var(--paper-deep);
  overflow: hidden;
}
.factor-bar span { display: block; height: 100%; background: var(--ink-soft); border-radius: 2px; }
.factor-note { width: 74px; flex: none; text-align: right; color: var(--ink-faint); }

:focus-visible { outline: 2px solid var(--seal); outline-offset: 2px; }

/* ---------- small screens ---------- */

@media (max-width: 760px) {
  .topbar { gap: 10px; padding: 8px 12px; flex-wrap: wrap; }
  .brand-text em { display: none; }
  .progress { order: 2; }
  .progress-track { width: 64px; }
  .search { order: 3; flex-basis: 100%; max-width: none; }
  /* 16px stops mobile browsers from zooming the page into a focused input. */
  .search input { font-size: 16px; }
  .user-menu summary > :not(.user-avatar) { display: none; }

  .controls { top: 10px; left: 10px; right: 10px; align-items: stretch; }
  .view-chip {
    align-self: flex-start;
    max-width: 100%;
    flex-wrap: wrap;
    row-gap: 2px;
    font-size: 12px;
    border-radius: 14px;
  }

  .filters-toggle { display: inline-flex; align-self: flex-start; }
  .filters { display: none; max-width: none; }
  .controls.filters-open .filters { display: flex; }
  .color-row { display: flex; }
  .hsk-btn { min-width: 30px; padding: 6px 4px; }

  /* The detail and recommendation panels become a bottom sheet: the map stays
     visible above it instead of being covered by a full side panel. */
  .panel {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    z-index: 25;
    width: auto;
    max-height: 56vh;
    border-left: none;
    border-top: 1px solid var(--line);
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -14px 34px rgba(35,33,27,.22);
    padding: 12px 18px calc(22px + env(safe-area-inset-bottom));
  }
  .panel::before {
    content: "";
    display: block;
    width: 42px;
    height: 4px;
    margin: 0 auto 10px;
    border-radius: 2px;
    background: var(--line);
  }
  .panel-close { top: 10px; right: 10px; font-size: 24px; padding: 8px; }

  .legend { display: none; }
  .hint { display: none; }
}

@media (max-width: 420px) {
  .brand-text { display: none; }
}

/* Touch screens have no hover: the tap already opens the detail panel, so a
   tooltip would only linger where the finger last was. */
@media (hover: none) {
  .tooltip { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .progress-fill { transition: none; }
}