/* ============================================================
   Palette Lab - item styles
   Colours come in as CSS custom properties set by main.js:
     --c    the colour      --ink  black or white text on it
     --bg / --fg            a contrast grid cell
   Phone: swatches are rows. From 760px: tall columns.
   ============================================================ */

.pl {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "hero" "contrast" "cvd" "export" "library";
  gap: 1.1rem;
  padding-block: 1.1rem 0;
}
.pl-hero     { grid-area: hero; }
.pl-contrast { grid-area: contrast; }
.pl-cvd      { grid-area: cvd; }
.pl-export   { grid-area: export; }
.pl-library  { grid-area: library; }

@media (min-width: 900px) {
  .pl {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas: "hero hero" "contrast export" "cvd library";
    align-items: start;
    gap: 1.4rem;
    padding-top: 1.6rem;
  }
}

.pl > section { padding-block: 0; min-width: 0; }
.pl h2 { font-size: 1.2rem; margin: 0 0 .6rem; }

.pl-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.pl > .pl-card { padding: 1.1rem 1.1rem 1.2rem; }

.pl-hint { font-size: .87rem; color: var(--text-dim); margin: 0 0 .9rem; line-height: 1.5; }
.pl-hint strong { color: var(--text); }
.pl-note { font-size: .88rem; color: var(--text-dim); margin: .6rem 0 0; min-height: 1.4em; }

/* ============================================================
   1. SWATCHES (the hero)
   ============================================================ */
.pl-swatches {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .45rem;
}
.pl-swatch {
  display: flex;
  min-height: 72px;
  border-radius: var(--radius);
  background: var(--c, var(--surface-2));
  color: var(--ink, var(--text));
  border: 2px solid transparent;
  overflow: hidden;
}
.pl-swatch.is-locked { border-color: var(--text); box-shadow: 0 0 0 2px var(--bg) inset; }

.pl-face {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: 0 .4rem 0 .9rem;
}
.pl-num {
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
  opacity: .7;
}
.pl-hex {
  width: 100%;
  min-width: 0;
  min-height: var(--tap);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: inherit;
  background: transparent;
  border: 1px dashed transparent;
  border-radius: var(--radius-sm);
  padding: 0 .4rem;
}
.pl-hex:hover { border-color: currentColor; }
.pl-hex:focus { outline: 2px solid currentColor; outline-offset: -2px; background: rgba(127, 127, 127, .18); }
.pl-hex.is-bad { border: 2px solid var(--hot); }

.pl-tools { display: flex; align-items: center; gap: .3rem; padding: 0 .5rem; }

/* The colour picker, shown as a round button. */
.pl-pick {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--tap);
  height: var(--tap);
  border-radius: 50%;
  border: 2px solid currentColor;
  cursor: pointer;
  background: conic-gradient(#ff2d78, #ffc93c, #3df5a0, #35d6f5, #8b5cf6, #ff2d78);
}
.pl-pick input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
.pl-pick:focus-within { outline: 2px solid var(--cyan); outline-offset: 2px; }

.pl-lock {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  min-height: var(--tap);
  min-width: 5.6rem;
  justify-content: center;
  padding: 0 .7rem;
  border-radius: 999px;
  border: 2px solid currentColor;
  background: transparent;
  color: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .88rem;
  cursor: pointer;
}
.pl-lock[aria-pressed="true"] { background: var(--ink); color: var(--c); border-color: var(--ink); }
.pl-lock-icon { font-size: .8rem; }

/* Wide screens: five tall columns. */
@media (min-width: 760px) {
  .pl-swatches { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .6rem; }
  .pl-swatch { flex-direction: column; min-height: 240px; }
  .pl-face { flex-direction: column; align-items: flex-start; justify-content: space-between; padding: .9rem .7rem .4rem; }
  .pl-hex { font-size: 1.05rem; padding: 0 .3rem; }
  .pl-tools { justify-content: space-between; padding: .5rem .6rem .7rem; }
  .pl-lock { min-width: 0; flex: 1; margin-left: .4rem; }
}

/* ---- generator row ---- */
.pl-gen {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: .8rem;
  margin-top: .9rem;
}
.pl-modes { border: 0; margin: 0; padding: 0; min-width: 0; flex: 1 1 22rem; }
.pl-modes legend,
.pl-base label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: .45rem;
  padding: 0;
  display: block;
}
.pl-seg {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-field);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.pl-seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.pl-seg label,
.pl-fmt {
  display: grid;
  place-items: center;
  min-height: var(--tap);
  padding: 0 .2rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .86rem;
  text-align: center;
  line-height: 1.15;
  cursor: pointer;
  color: var(--text-dim);
  background: transparent;
  border: 0;
  border-left: 1px solid var(--line-field);
  -webkit-user-select: none;
          user-select: none;
}
.pl-seg label:first-of-type,
.pl-fmt:first-child { border-left: 0; }
.pl-seg label:hover,
.pl-fmt:hover { color: var(--text); background: var(--surface-2); }
.pl-seg input:checked + label,
.pl-fmt[aria-checked="true"] { background: var(--accent); color: var(--bg); }
.pl-seg input:focus-visible + label { outline: 2px solid var(--cyan); outline-offset: -4px; border-radius: 6px; }
.pl-fmt:focus-visible { outline-offset: -4px; }

.pl-base input[type="color"] {
  width: 5.5rem;
  height: var(--tap);
  padding: 3px;
  border: 1px solid var(--line-field);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
}
.pl-go { min-height: 56px; flex: 1 1 12rem; font-size: 1.1rem; }
.pl-go kbd { background: rgba(0, 0, 0, .15); color: inherit; border-color: rgba(0, 0, 0, .25); }

/* ============================================================
   2. CONTRAST GRID
   ============================================================ */
.pl-key { white-space: nowrap; margin-right: .5rem; }
.pl-key:first-of-type { display: inline-block; margin-top: .35rem; }

.pl-grid { width: 100%; table-layout: fixed; border-collapse: separate; border-spacing: 3px; }
.pl-grid th,
.pl-grid td { padding: 0; }
.pl-corner { width: 1.9rem; }
.pl-chip {
  height: 1.9rem;
  border-radius: 6px;
  background: var(--c);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  text-align: center;
}
.pl-cell {
  height: 4.1rem;
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  text-align: center;
  vertical-align: middle;
  line-height: 1.1;
}
.pl-cell.is-same { background: repeating-linear-gradient(45deg, var(--surface-2) 0 6px, var(--surface) 6px 12px); }
.pl-aa { display: block; font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }
.pl-ratio { display: block; font-family: var(--font-mono); font-size: .7rem; font-weight: 700; margin: .1rem 0 .15rem; }

.pl-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: .05rem .3rem;
  border-radius: 4px;
  background: var(--bg-2);
  border: 1px solid var(--line-bright);
}
.pl-badge.is-aaa  { color: var(--green); }
.pl-badge.is-aa   { color: var(--cyan); }
.pl-badge.is-big  { color: var(--amber); }
.pl-badge.is-fail { color: var(--hot); }

/* ============================================================
   3. COLOUR BLINDNESS
   ============================================================ */
.pl-cvd-rows { display: grid; gap: .8rem; }
.pl-cvd-label { margin: 0 0 .3rem; font-size: .88rem; color: var(--text-faint); }
.pl-cvd-label strong { color: var(--text); font-weight: 600; }
.pl-strip { display: grid; grid-template-columns: repeat(5, 1fr); height: 2.6rem; border-radius: var(--radius-sm); overflow: hidden; }
.pl-strip span { background: var(--c); }

/* ============================================================
   4. EXPORT
   ============================================================ */
.pl-code {
  margin: .8rem 0;
  padding: .8rem .9rem;
  max-height: 14rem;
  overflow: auto;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: .8rem;
  line-height: 1.55;
  color: var(--text);
  white-space: pre;
  tab-size: 4;
}
.pl-actions { display: flex; gap: .6rem; flex-wrap: wrap; }
.pl-actions .btn { min-height: var(--tap); flex: 1 1 8rem; }
.pl-for { margin: .7rem 0 0; }

/* ============================================================
   5. LIBRARY
   ============================================================ */
.pl-save-form { display: flex; gap: .5rem; }
.pl-save-form input {
  flex: 1;
  min-width: 0;
  min-height: var(--tap);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-2);
  border: 1px solid var(--line-field);
  border-radius: var(--radius-sm);
  padding: .6rem .8rem;
}
.pl-save-form input:focus { outline: none; border-color: var(--accent); }
.pl-save-form .btn { min-height: var(--tap); }
.pl-lib-status { margin: .5rem 0 0; font-size: .85rem; color: var(--green); }
.pl-lib-status:empty { margin: 0; }
.pl-empty { color: var(--text-faint); font-size: .9rem; margin: .8rem 0 0; }

.pl-lib { list-style: none; margin: .7rem 0 0; padding: 0; display: grid; gap: .4rem; }
.pl-lib li {
  display: flex;
  align-items: stretch;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.pl-lib-load {
  flex: 1;
  min-width: 0;
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .4rem .6rem;
  background: none;
  border: 0;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.pl-lib-load:hover .pl-lib-name { color: var(--accent); }
.pl-mini { display: flex; flex-shrink: 0; width: 6.5rem; height: 1.8rem; border-radius: 5px; overflow: hidden; }
.pl-mini span { flex: 1; background: var(--c); }
.pl-lib-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pl-lib-del { min-width: var(--tap); padding: 0; border: 0; color: var(--text-faint); }
.pl-lib-del:hover { color: var(--hot); }

/* Narrow phones: the four harmony buttons as a 2 x 2 grid. */
@media (max-width: 520px) {
  .pl-modes .pl-seg { grid-template-columns: 1fr 1fr; }
  .pl-modes .pl-seg label:nth-of-type(odd) { border-left: 0; }
  .pl-modes .pl-seg label:nth-of-type(n+3) { border-top: 1px solid var(--line-field); }
}