/* ==========================================================================
   Huely — color system builder
   Layout: top bar, compact palette input, tabbed analysis workspace.
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --bg: #0e0e12;
  --bg-raised: #17171e;
  --bg-input: #1f1f29;
  --line: #2a2a36;
  --line-soft: #212129;
  --ink: #f2f2f6;
  --ink-dim: #9a9aae;
  --accent: #f26d5b;
  --focus: #7db9ff;
  --ok: #4ac48a;
  --warn: #e8b13d;
  --bad: #ef5f5f;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* h1 is the brand lockup in the top bar, so it takes the bar's type, not the
   browser default. */
h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: inherit; }

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

.skip-link {
  position: absolute;
  top: -100px; left: 8px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--bg-raised);
  color: var(--ink);
  border-radius: 10px;
  text-decoration: none;
}
.skip-link:focus { top: 8px; }

:where(button, select, input, textarea, a):focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 11px 16px;
  background: rgba(14, 14, 18, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 9px; }
.brand-mark { display: grid; gap: 2px; }
.brand-mark i { width: 16px; height: 3px; border-radius: 2px; display: block; }
.brand-mark i:nth-child(1) { background: #f26d5b; }
.brand-mark i:nth-child(2) { background: #f2c14e; }
.brand-mark i:nth-child(3) { background: #6fc4d6; }
.brand-name { font-weight: 680; font-size: 16px; letter-spacing: -0.02em; }
.brand-tag {
  font-size: 12px;
  color: var(--ink-dim);
  padding-left: 10px;
  margin-left: 2px;
  border-left: 1px solid var(--line);
}

.toolbar { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.divider { width: 1px; height: 20px; background: var(--line); margin: 0 3px; }

/* --------------------------------------------------------------- inputs */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-raised);
  color: var(--ink);
  font: 500 14px/1 var(--font);
  cursor: pointer;
  white-space: nowrap;
  transition: background .13s, border-color .13s, opacity .13s;
}
.btn:hover:not(:disabled) { background: #23232e; border-color: #3a3a48; }
.btn:disabled { opacity: .35; cursor: default; }
.btn svg { width: 17px; height: 17px; display: block; }
.btn-icon { width: 34px; padding: 0; }
.btn-sm { height: 27px; padding: 0 9px; font-size: 12.5px; border-radius: 7px; }

.btn-primary { background: var(--accent); border-color: transparent; color: #1c0d0a; font-weight: 650; }
.btn-primary:hover:not(:disabled) { background: #ff7f6d; border-color: transparent; }
.btn-accent { border-color: #3d3d4c; background: var(--bg-input); }

select, input[type="text"] {
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-input);
  color: var(--ink);
  font: 14px/1 var(--font);
}
select { cursor: pointer; }

kbd {
  font: 600 11px/1.6 var(--mono);
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--bg-input);
}

code { font: 12.5px/1.4 var(--mono); color: var(--ink-dim); }

/* ------------------------------------------------------- palette input */

.palette { padding: 16px 16px 0; }

.strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  gap: 10px;
}

/* Discrete cards, not a seamless full-bleed strip. */
.swatch {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  display: flex;
  flex-direction: column;
}

.swatch-color {
  height: 82px;
  background: var(--c);
  border: 0;
  padding: 0;
  width: 100%;
  cursor: pointer;
  position: relative;
}
.swatch.is-locked .swatch-color::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 2px dashed var(--ink-on);
  border-radius: 8px;
  opacity: .55;
}

.swatch-meta { padding: 9px 10px 4px; min-width: 0; }
.swatch-hex {
  border: 0;
  background: transparent;
  color: var(--ink);
  font: 650 15px/1.2 var(--mono);
  letter-spacing: .04em;
  padding: 2px 4px;
  margin-left: -4px;
  border-radius: 5px;
  cursor: pointer;
}
.swatch-hex:hover { background: var(--bg-input); }
.swatch-edit {
  width: 9ch;
  height: 26px;
  padding: 0 4px;
  font: 650 15px/1.2 var(--mono);
  border-radius: 5px;
}
.swatch-name {
  display: block;
  font-size: 12px;
  color: var(--ink-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Controls are always visible — no hover-to-discover. */
.swatch-tools {
  display: flex;
  gap: 1px;
  padding: 4px 6px 6px;
  border-top: 1px solid var(--line-soft);
  margin-top: 4px;
}
.tool {
  flex: 1;
  height: 28px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--ink-dim);
  cursor: pointer;
  transition: background .12s, color .12s;
}
.tool:hover:not(:disabled) { background: var(--bg-input); color: var(--ink); }
.tool:disabled { opacity: .25; cursor: default; }
.tool svg { width: 16px; height: 16px; display: block; }
.tool.is-on { color: var(--accent); }

.palette-foot {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0 0;
  flex-wrap: wrap;
}
.verdict { margin: 0; font-size: 13px; color: var(--ink-dim); }
.verdict b { color: var(--ink); font-weight: 600; }
.verdict .good { color: var(--ok); }
.verdict .poor { color: var(--bad); }

/* ---------------------------------------------------------------- tabs */

.tabs {
  display: flex;
  gap: 4px;
  padding: 14px 16px 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}
.tabs.inline { padding: 0; border: 0; margin-bottom: 12px; flex-wrap: wrap; }

.tab {
  height: 36px;
  padding: 0 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--ink-dim);
  font: 500 14px/1 var(--font);
  cursor: pointer;
  white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }

.tabs.inline .tab {
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
}
.tabs.inline .tab[aria-selected="true"] { background: var(--bg-input); border-color: #3a3a48; }

.panel { padding: 20px 16px 64px; max-width: 1400px; }
.panel-h { font-size: 14px; margin: 26px 0 10px; }
.note { margin: 14px 0 0; font-size: 12.5px; color: var(--ink-dim); max-width: 70ch; }

/* -------------------------------------------------------------- scales */

.scale-row { margin-bottom: 22px; }
.scale-head { display: flex; align-items: center; gap: 9px; margin-bottom: 7px; }
.scale-head strong { font-size: 14px; font-weight: 600; }
.scale-head .btn { margin-left: auto; }
.dot { width: 14px; height: 14px; border-radius: 4px; display: block; flex: 0 0 auto; }

.scale-grid {
  display: grid;
  grid-template-columns: repeat(11, minmax(0, 1fr));
  gap: 3px;
}
.scale-cell {
  border: 0;
  border-radius: 7px;
  padding: 9px 4px 8px;
  cursor: pointer;
  text-align: left;
  display: grid;
  gap: 1px;
  min-height: 68px;
  align-content: start;
  transition: transform .12s;
}
.scale-cell:hover { transform: translateY(-2px); }
.scale-cell.is-anchor { box-shadow: inset 0 0 0 2px currentColor; }
.scale-step { font: 700 11px/1.2 var(--mono); opacity: .85; }
.scale-hex { font: 500 9.5px/1.2 var(--mono); opacity: .65; }
.scale-safe { font-size: 8.5px; opacity: .6; margin-top: 2px; }

/* ------------------------------------------------------------ contrast */

.stat-row { display: flex; gap: 10px; flex-wrap: wrap; }
.stat {
  flex: 1 1 150px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raised);
}
.stat strong { display: block; font-size: 22px; font-weight: 680; letter-spacing: -0.02em; }
.stat span { font-size: 12.5px; color: var(--ink-dim); }

.audit { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.audit-row {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: 10px;
  background: var(--bg-raised);
  flex-wrap: wrap;
}
.audit-row.ok { border-left-color: var(--ok); }
.audit-row.bad { border-left-color: var(--bad); }
.audit-pair { display: flex; }
.audit-pair .chip:nth-child(2) { margin-left: -8px; }
.audit-label { flex: 1 1 180px; font-size: 13.5px; }
.audit-ratio { font: 600 13px/1 var(--mono); color: var(--ink-dim); }

.chip {
  width: 20px; height: 20px;
  border-radius: 6px;
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, .16);
  flex: 0 0 auto;
}
.chip.lg { width: 40px; height: 40px; border-radius: 9px; }
.chip-hex { font: 500 10px/1 var(--mono); color: var(--ink-dim); display: block; margin-top: 4px; }

.badge {
  font: 650 10.5px/1 var(--font);
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--bg-input);
  color: var(--ink-dim);
}
.badge.rank-0 { background: rgba(239, 95, 95, .16); color: #ff9494; }
.badge.rank-1 { background: rgba(232, 177, 61, .16); color: #f0c46b; }
.badge.rank-2, .badge.rank-3 { background: rgba(74, 196, 138, .16); color: #77dcaa; }

.table-scroll { overflow-x: auto; }
.matrix { border-collapse: separate; border-spacing: 3px; font-size: 12px; }
.matrix th { font-weight: 500; text-align: center; padding: 2px; }
.matrix th[scope="row"] { text-align: right; padding-right: 6px; }
.matrix .corner { min-width: 40px; }
.matrix td { text-align: center; padding: 7px 9px; border-radius: 7px; min-width: 62px; }
.cell-self { color: #4a4a5a; }
.cell-ratio { display: block; font: 600 12.5px/1.2 var(--mono); }
.cell-grade { display: block; font-size: 9.5px; opacity: .8; }
.cell.rank-0 { background: rgba(239, 95, 95, .13); color: #ff9494; }
.cell.rank-1 { background: rgba(232, 177, 61, .13); color: #f0c46b; }
.cell.rank-2 { background: rgba(74, 196, 138, .13); color: #77dcaa; }
.cell.rank-3 { background: rgba(74, 196, 138, .22); color: #8fe8bd; }

/* -------------------------------------------------------------- preview */

.role-fields { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.role-field { display: grid; gap: 4px; }
.role-field span { font-size: 12px; color: var(--ink-dim); }
.role-field select { max-width: 210px; }

.mock {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  max-width: 900px;
}
.mock-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 18px;
  font-size: 13.5px;
}
.mock-brand { display: flex; align-items: center; gap: 8px; font-weight: 650; }
.mock-brand i { width: 15px; height: 15px; border-radius: 5px; display: block; }
.mock-links { display: flex; gap: 16px; opacity: .8; }
.mock-body { padding: 22px 18px 24px; }
.mock-body h4 { font-size: 17px; margin-bottom: 6px; }
.mock-body p { margin: 0 0 16px; font-size: 14px; opacity: .85; max-width: 56ch; }
.mock-cards { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.mock-card { flex: 1 1 180px; padding: 14px 16px; border-radius: 10px; }
.mock-kpi { display: block; font-size: 22px; font-weight: 680; letter-spacing: -0.02em; }
.mock-cap { font-size: 12px; opacity: .75; }
.mock-actions { display: flex; gap: 9px; flex-wrap: wrap; }
.mock-actions button {
  height: 36px;
  padding: 0 18px;
  border: 0;
  border-radius: 8px;
  font: 600 14px/1 var(--font);
  cursor: pointer;
}
.mock-actions .ghost { background: transparent; border: 1.5px solid; }
.mock-muted { font-size: 12.5px; margin: 16px 0 0; }

/* --------------------------------------------------------------- vision */

.vision-row { margin-bottom: 18px; }
.vision-row header { display: flex; align-items: baseline; gap: 10px; margin-bottom: 7px; flex-wrap: wrap; }
.vision-row header strong { font-size: 14px; font-weight: 600; }
.vision-row header span { font-size: 12.5px; color: var(--ink-dim); }
.vision-strip { display: flex; gap: 4px; }
.vision-chip { flex: 1; height: 54px; border-radius: 8px; display: block; }
.vision-warn {
  margin: 7px 0 0;
  font-size: 12.5px;
  color: #f0c46b;
  padding: 7px 11px;
  background: rgba(232, 177, 61, .1);
  border-radius: 8px;
}

/* --------------------------------------------------------------- values */

.values { display: grid; gap: 8px; }
.value-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raised);
  flex-wrap: wrap;
}
.value-meta { min-width: 130px; }
.value-meta strong { display: block; font-size: 14px; font-weight: 600; }
.value-meta span { font: 12px/1.4 var(--mono); color: var(--ink-dim); }
.value-codes { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.value-codes button {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg-input);
  color: var(--ink-dim);
  font: 12px/1 var(--mono);
  padding: 7px 10px;
  cursor: pointer;
}
.value-codes button:hover { color: var(--ink); border-color: #3a3a48; }

/* ------------------------------------------------------------- dialogs */

.dlg {
  width: min(760px, calc(100vw - 32px));
  max-height: min(84dvh, 760px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-raised);
  color: var(--ink);
  overflow: hidden;
}
.dlg-sm { width: min(460px, calc(100vw - 32px)); }
.dlg::backdrop { background: rgba(5, 5, 9, .7); }

.dlg-head {
  display: flex;
  align-items: center;
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
}
.dlg-head h2 { font-size: 16px; }
.dlg-close { margin-left: auto; }
.dlg-body { padding: 18px; overflow: auto; max-height: calc(84dvh - 68px); }
.dlg-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }

.field-block { display: block; margin-bottom: 14px; }
.field-block span { display: block; margin-bottom: 6px; font-size: 13px; color: var(--ink-dim); }
.field-block input { width: 100%; }

.inline-check { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; font-size: 13px; color: var(--ink-dim); }

.code {
  width: 100%;
  height: 280px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0b0b0f;
  color: #d6d6e2;
  font: 13px/1.6 var(--mono);
  resize: vertical;
  white-space: pre;
  overflow: auto;
}

.mini { display: flex; height: 40px; border-radius: 8px; overflow: hidden; }
.mini i { flex: 1; display: block; }

.saved-list { display: grid; gap: 10px; }
.saved-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.saved-row .mini { flex: 1 1 120px; }
.saved-meta { min-width: 0; }
.saved-meta strong { display: block; font-size: 14px; font-weight: 600; }
.saved-meta span { font-size: 12px; color: var(--ink-dim); }
.empty { color: var(--ink-dim); text-align: center; padding: 28px 0; margin: 0; }

.shortcuts { display: grid; grid-template-columns: auto 1fr; gap: 9px 16px; margin: 0; align-items: center; }
.shortcuts dt { white-space: nowrap; }
.shortcuts dd { margin: 0; font-size: 14px; color: var(--ink-dim); }

/* -------------------------------------------------------------- toasts */

.toasts {
  position: fixed;
  left: 50%; bottom: 22px;
  transform: translateX(-50%);
  display: grid;
  gap: 8px;
  justify-items: center;
  z-index: 60;
  pointer-events: none;
}
.toast {
  padding: 9px 16px;
  border-radius: 999px;
  background: #f2f2f6;
  color: #14141a;
  font-size: 13.5px;
  font-weight: 550;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .35);
  animation: toast-in .18s ease-out;
}
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* ---------------------------------------------------- static description */
/* Below the workspace: the page's indexable body copy. Deliberately quiet —
   it is reference material, not part of the tool. */

.about {
  max-width: 1400px;
  padding: 8px 16px 0;
  border-top: 1px solid var(--line-soft);
  margin-top: 8px;
}
.about h2 {
  font-size: 20px;
  margin: 36px 0 12px;
  scroll-margin-top: 76px;
}
.about h3 { font-size: 14.5px; margin: 0 0 6px; }
.about p {
  margin: 0 0 14px;
  max-width: 72ch;
  color: var(--ink-dim);
  font-size: 14px;
}
.about em { color: var(--ink); font-style: normal; font-weight: 600; }

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.about-grid article {
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--bg-raised);
}
.about-grid p { margin: 0; font-size: 13.5px; }

.faq h3 { margin-top: 20px; }
.faq h3:first-child { margin-top: 0; }

.site-foot {
  max-width: 1400px;
  padding: 28px 16px 40px;
  color: var(--ink-dim);
  font-size: 13px;
}
.site-foot p { margin: 0; }
.site-foot strong { color: var(--ink); }
.site-foot a { color: var(--ink-dim); }
.site-foot a:hover { color: var(--ink); }

/* ----------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .topbar { flex-wrap: wrap; gap: 10px; }
  .brand-tag { display: none; }
  .toolbar { margin-left: 0; width: 100%; overflow-x: auto; }
  .strip { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  .scale-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .value-codes { margin-left: 0; }
}

@media (max-width: 560px) {
  .strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  /* Comfortable touch targets — 28px is fine for a mouse, not for a thumb. */
  .tool { height: 40px; }
  .scale-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .panel { padding: 16px 12px 56px; }
  .palette { padding: 12px 12px 0; }
  .tabs { padding: 12px 12px 0; }
  .about { padding: 8px 12px 0; }
  .site-foot { padding: 24px 12px 36px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}