/* The Piano Chord Atlas: its controls, legend, cards and keyboards. The page's header, paint
   and the chord colours are in ../resources.css. */

:root {
  --white-key: #f4efe4;
  --black-key: #0b0a09;
  --key-edge: #8a8170;
}

button {
  font: inherit;
  color: inherit;
}
.controls {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr;
}
.ctl {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.ctl-lab {
  flex: 0 0 76px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--silk-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.seg {
  display: grid;
  flex: 1 1 auto;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
}
.seg button {
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  padding: 6px 0;
  min-height: 38px;
  cursor: pointer;
  font-size: 15px;
  white-space: nowrap;
}
.seg button:first-child {
  border-left: 0;
}
.seg button[aria-pressed="true"] {
  background: var(--root);
  color: #000;
}
.seg button:hover:not([aria-pressed="true"]) {
  background: var(--tape);
}
.seg button:focus-visible {
  outline-offset: -3px;
}
.roots {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}
.roots button {
  font-family: var(--mono);
}
.invs {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 360px;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}
.chips button {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 999px;
  padding: 5px 13px;
  min-height: 34px;
  cursor: pointer;
  font-size: 15px;
}
.chips button[aria-pressed="true"] {
  background: var(--silk);
  color: var(--ink);
  border-color: var(--silk);
  font-weight: 700;
}
.chips button:hover:not([aria-pressed="true"]) {
  border-color: var(--silk-dim);
}
@media (min-width: 1000px) {
  .controls {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    column-gap: 24px;
  }
  .ctl.root-ctl {
    grid-column: 1 / -1;
  }
}
@media (max-width: 640px) {
  .roots {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .roots button:nth-child(7) {
    border-left: 0;
  }
  .roots button:nth-child(n + 7) {
    border-top: 1px solid var(--line);
  }
  .ctl {
    align-items: flex-start;
  }
  .ctl-lab {
    flex-basis: 64px;
    padding-top: 9px;
  }
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  margin: 20px 0 8px;
  font-size: 15px;
  color: var(--silk-dim);
}
.legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.sw {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
}
.sw.root {
  background: var(--root);
}
.sw.tone {
  background: var(--tone);
}
.sw.ext {
  background: var(--color);
}
.legend .tag {
  font-family: var(--mono);
  color: var(--silk);
}
.hint {
  margin: 0 0 4px;
  font-size: 15px;
  color: var(--silk-dim);
}

section.fam {
  margin-top: 32px;
}
section.fam h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 14px;
  font-family: var(--display);
  font-weight: 400;
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
section.fam h2 small {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--silk-dim);
}
.grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
}
.grid.wide {
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 430px), 1fr));
}
.card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 16px 16px 14px;
  border-radius: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.card:hover {
  border-color: var(--silk-dim);
}
.card.playing {
  border-color: var(--root);
}
.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
/* A chord's name keeps its case (m is minor, M is not), so it is set in the body face, not in
   the display faces, which print only capitals */
.cname {
  margin: 0;
  font-family: var(--body);
  font-weight: 700;
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.cname .cs {
  color: var(--silk-dim);
  font-weight: 600;
}
.tname {
  font-size: 14px;
  color: var(--silk-dim);
}
.formula,
.notes {
  margin: 0;
  font-family: var(--mono);
  font-size: 14px;
}
.formula b {
  color: var(--color);
  font-weight: inherit;
}
.notes {
  color: var(--silk-dim);
}
.notes .rt {
  color: var(--root);
}
.use {
  margin: 0;
  font-size: 15px;
  line-height: 1.45;
}
figure {
  margin: 6px 0 0;
}
figcaption {
  margin-bottom: 4px;
  font-size: 13px;
  color: var(--silk-dim);
}
figcaption .mono,
.finger .mono {
  font-family: var(--mono);
}
.note {
  margin: 0;
  font-size: 13px;
  color: var(--silk-dim);
}
.finger {
  margin: 4px 0 0;
  font-size: 14px;
}
.finger .k {
  margin-right: 6px;
  font-size: 13px;
  color: var(--silk-dim);
}
svg.kb {
  display: block;
  width: 100%;
  height: auto;
}
.kb .w {
  fill: var(--white-key);
  stroke: var(--key-edge);
  stroke-width: 1;
}
.kb .b {
  fill: var(--black-key);
}
.kb .r-root {
  fill: var(--root);
}
.kb .r-tone {
  fill: var(--tone);
}
.kb .r-ext {
  fill: var(--color);
}
.kb text {
  font-family: var(--mono);
  text-anchor: middle;
}
.kb .lab {
  fill: var(--on-dot);
}
.kb .hand {
  fill: var(--silk);
  font-size: 11px;
}
.kb .hand.L {
  fill: var(--silk-dim);
}