:root {
  color-scheme: light dark;
  --bg: #f4f1ea;
  --surface: #fffdf8;
  --surface-soft: #ebe6dc;
  --text: #25231f;
  --muted: #6c675e;
  --border: #d5cec1;
  --accent: #1b6b5a;
  --accent-strong: #124c40;
  --accent-soft: #dbece6;
  --danger: #a13d35;
  --shadow: 0 16px 50px rgba(49, 42, 31, .09);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171a18;
    --surface: #202522;
    --surface-soft: #2b302d;
    --text: #f2eee5;
    --muted: #b7b0a5;
    --border: #3c443f;
    --accent: #72c9b5;
    --accent-strong: #a3dece;
    --accent-soft: #263d36;
    --danger: #f09087;
    --shadow: 0 16px 50px rgba(0, 0, 0, .2);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.5;
}
button, input, output { font: inherit; }
button, .file-button { cursor: pointer; }
button:focus-visible, input:focus-visible, summary:focus-visible, .file-button:focus-within {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 3px;
}
.shell { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 64px 0 48px; }
.hero { max-width: 720px; margin-bottom: 30px; }
.eyebrow { margin: 0 0 6px; color: var(--accent-strong); font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 14px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.35rem, 8vw, 4.6rem); font-weight: 500; letter-spacing: -.045em; line-height: .98; }
h2 { margin-bottom: 0; font-size: clamp(1.35rem, 4vw, 1.8rem); }
.lead { margin-bottom: 0; color: var(--muted); font-size: clamp(1rem, 2.4vw, 1.15rem); }
.search-panel, .word-editor details {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.search-panel { padding: clamp(18px, 4vw, 30px); }
label { display: block; margin-bottom: 7px; font-weight: 700; }
.input-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
input[type="text"] {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  padding: 13px 14px;
}
input[type="text"]:focus { border-color: var(--accent); }
button, .file-button {
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--accent);
  color: var(--bg);
  padding: 12px 17px;
  font-weight: 700;
}
button:hover, .file-button:hover { filter: brightness(.96); }
.secondary, .file-button { border-color: var(--border); background: var(--surface-soft); color: var(--text); }
.help, .result-summary, .summary-hint, footer { color: var(--muted); font-size: .9rem; }
.help { margin: 9px 0 0; }
.examples { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 13px; color: var(--muted); font-size: .88rem; }
.text-button, .danger-text { padding: 3px 7px; border: 0; background: transparent; color: var(--accent-strong); }
.danger-text { color: var(--danger); }
.error { min-height: 1.5em; margin: 8px 0 -8px; color: var(--danger); font-weight: 700; }
.result-section { margin-top: 34px; }
.reference, .word-editor { margin-top: 46px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 16px; }
.result-summary { margin-bottom: 3px; text-align: right; }
.results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 28px; }
.result-card { display: grid; grid-template-columns: 24px minmax(0, 1fr) auto; gap: 8px; align-items: center; min-width: 0; padding: 9px 0; border-top: 1px solid var(--border); }
.result-card:nth-child(-n + 2) { border-top: 0; }
.rank { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-strong); font-size: .75rem; font-weight: 800; }
.phrase { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; min-width: 0; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: 1.08rem; line-height: 1.25; }
.word-token { white-space: nowrap; }
.plus { color: var(--muted); font-family: ui-sans-serif, system-ui, sans-serif; font-size: .75rem; }
.codes { color: var(--muted); font-size: .73rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.key-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--border); border-left: 1px solid var(--border); }
.key-grid div { min-width: 0; padding: 14px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.key-grid strong { display: block; color: var(--accent-strong); font-size: 1.25rem; }
.key-grid span { color: var(--muted); font-size: .84rem; }
.word-editor details { overflow: hidden; }
summary { display: flex; justify-content: space-between; gap: 12px; padding: 20px 24px; font-weight: 800; cursor: pointer; }
.editor-content { border-top: 1px solid var(--border); padding: 24px; }
.word-form { display: grid; grid-template-columns: minmax(0, 1fr) 140px auto; gap: 12px; align-items: end; }
.word-form output { display: flex; align-items: center; min-height: 51px; border-radius: 10px; background: var(--surface-soft); padding: 12px; font-weight: 800; }
.custom-list { margin-top: 18px; }
.custom-item { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 9px 0; border-top: 1px solid var(--border); }
.custom-item code { color: var(--muted); }
.data-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.file-button { display: inline-flex; align-items: center; }
.file-button input { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; }
footer { padding: 20px 16px 38px; text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
[hidden] { display: none !important; }

@media (max-width: 640px) {
  .shell { width: min(100% - 22px, 920px); padding-top: 38px; }
  .input-row, .word-form { grid-template-columns: 1fr; }
  .input-row button { width: 100%; }
  .key-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .key-grid div:last-child { grid-column: span 2; }
  .section-heading { align-items: start; flex-direction: column; gap: 5px; }
  .result-summary { text-align: left; }
  .results { grid-template-columns: 1fr; }
  .result-card:nth-child(2) { border-top: 1px solid var(--border); }
  summary { align-items: start; flex-direction: column; }
}

@media (max-width: 390px) {
  .result-card { grid-template-columns: 24px minmax(0, 1fr); }
  .codes { grid-column: 2; }
}

@media (prefers-reduced-motion: no-preference) {
  button { transition: filter .15s ease, transform .15s ease; }
  button:active { transform: translateY(1px); }
}