/* Color Mixer — Colorlib
   Builds on metro-colors.css (tokens, hero, panels, copy buttons, toast), so the
   two color tools look and behave as one set. */

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.mixer { padding: 36px 0 8px; }

/* ------------------------------------------------------------ controls --- */
.mix-controls {
  display: grid; gap: 14px; align-items: end;
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .mix-controls { grid-template-columns: 1fr auto 1fr; }
  .mix-options { grid-column: 1 / -1; }
}
@media (min-width: 1080px) {
  .mix-controls { grid-template-columns: 1fr auto 1fr 1.2fr; }
  .mix-options { grid-column: auto; }
}
.mix-color label, .mix-options > label { display: block; font-size: .82rem; font-weight: 600; margin-bottom: 6px; }
.mix-input {
  display: flex; align-items: center; gap: 10px; padding: 8px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--panel);
}
.mix-input input[type="color"] {
  width: 46px; height: 46px; padding: 0; border: 1px solid rgba(0,0,0,.12);
  border-radius: 10px; background: none; cursor: pointer; flex: none;
}
.mix-input input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.mix-input input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 9px; }
.mix-input input[type="color"]::-moz-color-swatch { border: 0; border-radius: 9px; }
.mix-input input[type="text"] {
  flex: 1; min-width: 0; font: 600 1.05rem var(--mono); letter-spacing: .04em;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 9px;
  background: var(--bg); color: var(--fg); text-transform: uppercase;
}
.mix-input input[type="text"]:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.mix-input input[type="text"][aria-invalid="true"] { border-color: #d92d20; outline-color: #d92d20; }

.mix-swap {
  justify-self: center; width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--panel); color: var(--fg);
  font-size: 1.25rem; cursor: pointer; margin-bottom: 9px;
}
.mix-swap:hover, .mix-swap:focus-visible { border-color: var(--accent); color: var(--accent); }

.mix-options {
  display: grid; gap: 8px; padding: 10px 14px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--panel);
}
.mix-options > label { margin: 0; display: flex; justify-content: space-between; }
.mix-options output { font-family: var(--mono); color: var(--muted); }
.mix-options input[type="range"] { width: 100%; accent-color: var(--accent); }
.mix-mode { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: .88rem; }
.mix-mode legend { font-size: .82rem; font-weight: 600; float: left; margin-right: 12px; padding: 0; }
.mix-mode label { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
.mix-mode input { accent-color: var(--accent); }

.mix-help { font-size: .85rem; margin: 12px 0 0; }

/* --------------------------------------------------------------- strip --- */
.mix-strip {
  display: flex; height: 64px; margin: 24px 0 18px;
  border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(0,0,0,.12);
}
.mix-strip span { flex: 1; }

/* --------------------------------------------------------------- table --- */
.mix-table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
.mix-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.mix-table th {
  text-align: left; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); font-weight: 600; padding: 10px 14px; border-bottom: 1px solid var(--line);
}
.mix-table td { padding: 6px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.mix-table tr:last-child td { border-bottom: 0; }
.mix-swatch {
  display: block; width: 100%; min-width: 72px; height: 34px; border-radius: 8px;
  background: var(--c); border: 1px solid rgba(0,0,0,.1);
}
.mix-code {
  font: .9rem var(--mono); background: none; border: 1px solid transparent; border-radius: 7px;
  padding: 5px 8px; color: var(--fg); cursor: pointer; white-space: nowrap;
}
.mix-code:hover, .mix-code:focus-visible { border-color: var(--accent); color: var(--accent); }
.mix-read { font-size: .76rem; color: var(--muted); white-space: nowrap; }
.mix-read b { display: inline-block; min-width: 1.6em; padding: 1px 6px; border-radius: 5px; text-align: center; margin-right: 4px; }
@media (max-width: 560px) {
  .mix-table th:nth-child(4), .mix-table td:nth-child(4) { display: none; }
  .mix-table td, .mix-table th { padding-left: 8px; padding-right: 8px; }
  .mix-code { font-size: .8rem; padding: 4px 4px; }
}

/* -------------------------------------------------------------- panels --- */
.mix-export, .mix-presets { margin-top: 18px; }
.preset-row { display: flex; flex-wrap: wrap; gap: 8px; }
.preset {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px 6px 6px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--bg);
  color: var(--fg); font: inherit; font-size: .84rem; cursor: pointer;
}
.preset::before {
  content: ""; width: 22px; height: 22px; border-radius: 50%;
  background: var(--c); border: 1px solid rgba(0,0,0,.15);
}
.preset:hover, .preset:focus-visible { border-color: var(--accent); }

/* --------------------------------------------------------------- about --- */
.about { max-width: 72ch; padding: 40px 0 8px; }
.about h2 { font-size: 1.4rem; margin: 0 0 12px; }
.about h3 { font-size: 1.1rem; margin: 26px 0 10px; }
.about p, .about li { color: var(--muted); }
.mixer-steps { padding-left: 1.2em; }
.mixer-steps li { margin-bottom: 6px; }