*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#2a2a2e;
  --accent:rgba(255,255,255,0.30);
  --ink:rgba(255,255,255,0.94);
  --ease:cubic-bezier(.22,1,.36,1);
}

html{
  height:100%;
  overflow-x:hidden;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}

body{
  min-height:100vh;
  min-height:100svh;
  width:100%;
  max-width:100%;
  background:#0c0c0e;
  color:var(--ink);
  font-family:'Geist',-apple-system,BlinkMacSystemFont,sans-serif;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow-x:clip;
  -webkit-tap-highlight-color:transparent;
}

/* text selection colour */
::selection{
  background:var(--accent);
  color:#0c0c0e;
}

/* buttons: no gesture-disambiguation delay on touch */
button{
  touch-action:manipulation;
  -webkit-tap-highlight-color:transparent;
}

/* instant press feedback (no transition on the way down) */
.copy:active,
.clear:active,
.segs button:active{
  transition:none;
  transform:scale(.94);
}
.copy:active{background:rgba(255,255,255,.75)}
.clear:active{background:rgba(255,255,255,.22)}

/* stop long-press selecting decorative / interactive chrome */
.topbar,
.family,
.name,
.hash,
.grouplabel,
.hint,
.segs,
.copy,
.clear,
.footer{
  -webkit-user-select:none;
  user-select:none;
}

/* ambient glow */
.glow{
  position:absolute;
  top:-25%;
  left:50%;
  width:min(960px, 140vw);
  aspect-ratio:1;
  border-radius:50%;
  background:var(--bg);
  filter:blur(200px);
  opacity:.24;
  transition:background 900ms var(--ease), opacity 900ms var(--ease);
  animation:glowdrift 14s ease-in-out infinite;
  will-change:transform;
  pointer-events:none;
}
@keyframes glowdrift{
  0%{transform:translate(-50%,0) scale(1)}
  50%{transform:translate(-50%,2%) scale(1.06)}
  100%{transform:translate(-50%,0) scale(1)}
}
@media (prefers-reduced-motion:reduce){
  .glow{animation:none}
  *{transition-duration:.01ms !important}
}

/* top bar */
.topbar{
  position:relative;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:32px 40px;
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(255,255,255,.5);
}

/* center stage */
.stage{
  position:relative;
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:0 24px 24px;
}

.swatch{
  width:92px;
  height:92px;
  border-radius:22px;
  background:var(--bg);
  box-shadow:0 24px 60px -18px var(--bg), inset 0 0 0 1px rgba(255,255,255,.08);
  transition:background 900ms var(--ease), box-shadow 900ms var(--ease);
  margin-bottom:30px;
}

.family{
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:12px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:rgba(255,255,255,.42);
  margin-bottom:18px;
}

.name{
  font-family:'Instrument Serif',Georgia,serif;
  font-weight:400;
  font-size:clamp(34px,9vw,140px);
  line-height:.98;
  letter-spacing:-.01em;
  text-wrap:balance;
  color:var(--accent);
  transition:color 700ms var(--ease);
  max-width:100%;
  overflow-wrap:break-word;
  hyphens:auto;
}

/* hex input */
.hexwrap{
  margin-top:44px;
  display:inline-flex;
  align-items:center;
  gap:4px;
  border-bottom:1.5px solid rgba(255,255,255,.16);
  padding:6px 4px 10px;
  transition:border-color 300ms;
}
.hexwrap:focus-within{border-bottom-color:rgba(255,255,255,.4)}

.hash{
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:clamp(22px,3.4vw,34px);
  color:rgba(255,255,255,.38);
}

.hexfield{
  display:inline-block;
  min-width:clamp(180px,32vw,300px);
  outline:none;
  color:var(--ink);
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:clamp(22px,3.4vw,34px);
  letter-spacing:.06em;
  caret-color:var(--accent);
  white-space:pre;
  overflow:hidden;
  -webkit-user-modify:read-write-plaintext-only;
  -webkit-touch-callout:none;
}
.hexfield:empty::before{
  content:attr(data-placeholder);
  color:rgba(255,255,255,.28);
  pointer-events:none;
}

.clear{
  flex:none;
  display:grid;
  place-items:center;
  width:26px;
  height:26px;
  margin-left:2px;
  padding:0;
  border:none;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.55);
  cursor:pointer;
  transition:background 180ms, color 180ms, opacity 180ms, transform 140ms var(--ease);
}
.clear svg{width:13px;height:13px}
.clear:hover{background:rgba(255,255,255,.16);color:rgba(255,255,255,.9)}
.is-empty .clear{opacity:0;pointer-events:none}

/* meta + copy */
.meta{
  margin-top:36px;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  justify-content:center;
}
.pills{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:center;
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:12px;
  letter-spacing:.04em;
  color:rgba(255,255,255,.6);
}
.pill{
  border:1px solid rgba(255,255,255,.14);
  border-radius:999px;
  padding:8px 14px;
  white-space:nowrap;
}

.copy{
  cursor:pointer;
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:12px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:#0c0c0e;
  background:rgba(255,255,255,.94);
  border:none;
  border-radius:999px;
  padding:11px 20px;
  transition:opacity 200ms, transform 140ms var(--ease), background 140ms;
}
.copy:hover{opacity:.85}

/* settings */
.settings{
  margin-top:40px;
  display:flex;
  gap:36px;
  flex-wrap:wrap;
  justify-content:center;
  align-items:flex-start;
}
.group{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
}
.grouplabel{
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:10px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:rgba(255,255,255,.35);
}
.segs{
  display:flex;
  gap:4px;
  max-width:100%;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  border-radius:999px;
  padding:4px;
}
.segs button{
  cursor:pointer;
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:11px;
  letter-spacing:.04em;
  white-space:nowrap;
  border:none;
  border-radius:999px;
  padding:8px 14px;
  background:transparent;
  color:rgba(255,255,255,.55);
  transition:background 220ms, color 220ms, transform 140ms var(--ease);
}
.segs button:hover{color:rgba(255,255,255,.85)}
.segs button[aria-pressed="true"]{
  background:rgba(255,255,255,.92);
  color:#0c0c0e;
}

.hint{
  margin-top:22px;
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:11px;
  letter-spacing:.06em;
  color:rgba(255,255,255,.3);
}

/* footer */
.footer{
  position:relative;
  flex-shrink:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  gap:8px;
  padding:28px 24px 32px;
  font-family:'Geist Mono',ui-monospace,monospace;
  font-size:11px;
  letter-spacing:.04em;
  color:rgba(255,255,255,.32);
  text-align:center;
}
.footer a{
  color:rgba(255,255,255,.52);
  text-decoration:none;
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:color 200ms, border-color 200ms;
}
.footer a:hover{
  color:rgba(255,255,255,.85);
  border-bottom-color:rgba(255,255,255,.4);
}
.footer .dot{opacity:.5}

/* empty state */
.is-empty .pill{display:none}
.is-empty .copy{opacity:.35;pointer-events:none}
.is-empty .name{opacity:.45;font-style:italic}
.is-empty .glow{opacity:.10}
.is-empty .family{min-height:1em}

/* keyboard focus */
.copy:focus-visible,
.segs button:focus-visible,
.footer a:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.hexfield:focus-visible{outline:none}

@media (max-width:600px){
  .topbar{padding:24px 20px;font-size:11px}
  .stage{padding:0 16px 24px}
  .settings{gap:24px}
  .footer{gap:6px;font-size:10px;line-height:1.6}
  .footer .dot{display:none}
  .footer > span,.footer > a{flex-basis:100%}
}

@media (max-width:380px){
  .segs button{padding:8px 9px;font-size:10px;letter-spacing:0}
  .swatch{width:76px;height:76px;border-radius:18px;margin-bottom:24px}
  .hexwrap{margin-top:32px}
  .meta{margin-top:28px}
  .settings{margin-top:32px}
}