*{box-sizing:border-box}
:root{font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;color:#17171b;background:#efeff4;font-synthesis:none}
body{margin:0;min-height:100vh;text-align:center;padding:clamp(24px,5.5vh,64px) 18px 54px}
[hidden]{display:none!important}
.glass{margin:auto;width:max-content;display:flex;padding:5px;border-radius:100px;border:1px solid #fff9;background:linear-gradient(160deg,#ffffffa8,#f3f3f982 50%,#ffffff9c);box-shadow:inset 0 1px 2px white,inset 0 -1px 2px #aaaab533,0 0 0 1px #2929400d,0 4px 16px #34344809;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}
.glass a{width:105px;padding:7px 5px 6px;display:grid;justify-items:center;gap:3px;border-radius:60px;color:#222228;text-decoration:none;font-size:12px;font-weight:650}
.glass a[aria-current]{background:linear-gradient(125deg,#dcdde3c9,#e7e7ec);color:#007e84;box-shadow:inset 0 1px 2px #fff8}
svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
main{max-width:760px;margin:clamp(50px,10vh,112px) auto 0}
h1,h2,h3,p{margin:0}h1{font-size:clamp(40px,3.6vw,54px);letter-spacing:-.045em;line-height:1.08;font-weight:670}
header p{font-size:clamp(19px,2.2vw,32px);letter-spacing:-.035em;margin:14px 0 clamp(32px,5.5vh,66px)}
.card{background:#fff;border-radius:clamp(30px,4vw,60px);padding:36px 0;box-shadow:0 2px 12px #30304003}
.workspace{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));min-height:clamp(305px,37vh,410px)}
form,#indicator{min-width:0;padding:0 clamp(16px,2.2vw,32px);display:flex;align-items:center;flex-direction:column}
#indicator{border-left:1px solid #e7e7ed}
label,h2{font-size:18px;letter-spacing:-.025em;font-weight:560}
textarea,#result-value{font:650 clamp(23px,2.25vw,34px)/1.2 inherit;letter-spacing:-.035em}
textarea{width:100%;border:0;outline:none;border-radius:8px;text-align:center;resize:none;font-family:inherit;font-weight:580;font-size:clamp(22px,2vw,30px);line-height:1.22;margin:24px 0 10px;color:inherit}
textarea::placeholder,#result-value{color:#aaaab6}
#result-value{font-size:clamp(29px,3vw,42px);font-weight:620;margin:22px 0 5px;line-height:1.2}
[data-state=done] #result-value{color:#17171b}
small,.details,#result-status{color:#62626d;font-size:12px;line-height:1.55}
#result-status{margin:8px 0}
.details{display:none;margin:auto 0 0}.details p{margin:4px auto}
[data-state=done] .details{display:block}
.actions{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:auto}
button{font:560 13px/1.3 -apple-system,BlinkMacSystemFont,sans-serif;border:0;border-radius:99px;padding:10px 16px;cursor:pointer;background:#f0f0f5;color:#35353c}
#submit{background:#212126;color:#fff}button:disabled{opacity:.55;cursor:wait}
:focus-visible{outline:2px solid #007e84;outline-offset:2px}
#error{color:#aa3036;font-size:13px;margin-bottom:8px}
.paper{padding:38px 26px}.paper h3{font-size:30px;letter-spacing:-.04em;margin:18px auto 8px}.paper p{max-width:48ch;margin:12px auto;color:#555560;line-height:1.55}.paper details{margin-top:24px}.paper summary{cursor:pointer;color:#007e84}
@media(max-width:560px){main{margin-top:44px}.workspace{grid-template-columns:1fr;padding:22px}.workspace form{padding:0 0 20px}.workspace #indicator{border:0;border-top:1px solid #e7e7ed;padding:20px 0 0}textarea{height:70px;margin-top:18px}.glass a{width:94px}#result-value{margin-top:14px}}

#smiles:focus{outline:none;box-shadow:none}

.smiles-entry{width:100%;display:grid;margin:24px 0 10px}
.smiles-entry textarea,.entry-hint{grid-area:1/1}
.smiles-entry textarea{margin:0}
.entry-hint{display:none;align-self:start;position:relative;justify-self:center;padding-top:2px;pointer-events:none;color:#aaaab6;font-size:clamp(22px,2vw,30px);line-height:1.22;font-weight:580;letter-spacing:-.035em}
#smiles:placeholder-shown + .entry-hint{display:block}
#smiles:focus:placeholder-shown{caret-color:transparent}
#smiles:focus:placeholder-shown + .entry-hint::after{content:"";position:absolute;left:calc(100% + 1px);bottom:.08em;height:1em;width:2px;border-radius:1px;background:#17171b;animation:hint-caret 1.1s step-end infinite}
@keyframes hint-caret{50%{opacity:0}}
@media(prefers-reduced-motion:reduce){#smiles:focus:placeholder-shown + .entry-hint::after{animation:none}}
@media(max-width:560px){.smiles-entry{margin-top:18px}}

.mode-picker {
  position: relative;
}
#mode-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin: -9px 0;
  padding: 9px 10px;
  color: inherit;
  background: transparent;
  font-weight: 560;
  font-family: inherit;
  font-size: 18px;
  line-height: 1.25;
  letter-spacing: -.025em;
}
#mode-toggle svg {
  width: 11px;
  height: 16px;
  stroke-width: 2.2;
  color: #898991;
}
#mode-menu {
  position: absolute;
  z-index: 3;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  width: 182px;
  padding: 5px;
  border: 1px solid #ffffffbd;
  border-radius: 19px;
  background: #f9f9fbe8;
  box-shadow: inset 0 1px 2px #fff, 0 0 0 1px #34343c12, 0 8px 24px #25253120;
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}
#mode-menu button {
  position: relative;
  width: 100%;
  padding: 10px 12px 10px 33px;
  text-align: left;
  border-radius: 13px;
  background: transparent;
  color: #242428;
  font: 500 15px/1.35 -apple-system,BlinkMacSystemFont,Arial,sans-serif;
}
#mode-menu button:focus-visible {
  outline: none;
}
#mode-menu:not(:hover) button:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}
#mode-menu button:hover {
  background: #e7e7ed;
}
#mode-menu button[aria-checked="true"]::before {
  content: "✓";
  position: absolute;
  left: 11px;
  color: #242428;
}

#lookup-note { font-size: 12px; color: #62626d; line-height: 1.5; margin-bottom: 8px; }