:root {
  color-scheme: light;
  --paper: #f4f2ed;
  --card: #fffefa;
  --ink: #20241f;
  --muted: #858981;
  --line: #e8e7df;
  --green: #4d694f;
  --green-dark: #3e5840;
  --green-pale: #edf2ea;
  --red: #b7554c;
  font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; min-height: 100vh; background: var(--paper); color: var(--ink); }
button, input { font: inherit; }
.shell { width: min(100% - 48px, 1080px); margin: 0 auto; }
.topbar { display: flex; justify-content: space-between; align-items: center; height: 88px; }
.wordmark { display: inline-flex; gap: 10px; align-items: center; color: var(--ink); text-decoration: none; font: 700 17px 'Segoe UI', sans-serif; letter-spacing: -.7px; }
.wordmark-icon { display: grid; place-items: center; width: 27px; height: 27px; color: white; background: var(--green); border-radius: 8px; font: 700 14px 'Segoe UI', sans-serif; }
.wordmark-period { color: var(--green); }
.field-label, .round-count { font: 500 10px Consolas, 'Courier New', monospace; letter-spacing: 1.1px; }
.topbar-note { color: var(--muted); }
.game-card { position: relative; max-width: 650px; margin: 34px auto 0; padding: 58px 70px 28px; background: var(--card); border: 1px solid #ebe9e2; border-radius: 8px; box-shadow: 0 18px 55px #33321b0a; }
h1 { margin: 23px 0 12px; font: 600 clamp(38px, 5vw, 51px)/1.12 'Segoe UI', sans-serif; letter-spacing: -2.8px; }
h1 span { color: var(--green); }
.intro { max-width: 430px; margin: 0 0 36px; color: #747970; font-size: 14px; line-height: 1.7; }
.setup-form { display: grid; }
.field-label { display: block; color: #656b61; }
.text-field { width: 100%; margin-top: 11px; padding: 13px 14px; color: var(--ink); background: #fff; border: 1px solid #dedfd6; border-radius: 5px; outline: none; font: 500 16px Consolas, 'Courier New', monospace; letter-spacing: 1.4px; transition: border-color .18s, box-shadow .18s; }
.text-field:focus, .stepper input:focus { border-color: #81957c; box-shadow: 0 0 0 3px #4d694f18; }
.field-meta { display: flex; justify-content: space-between; gap: 10px; margin-top: 8px; color: #92968e; font-size: 11px; }
.length-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 29px; }
.field-description { margin: 6px 0 0; color: #8b9087; font-size: 12px; }
.stepper { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
.stepper-button { width: 35px; height: 36px; color: var(--green); background: #fafaf7; border: 0; cursor: pointer; font-size: 19px; }
.stepper-button:hover { background: var(--green-pale); }
.stepper input { width: 43px; height: 36px; border: 0; border-inline: 1px solid var(--line); outline: none; text-align: center; font: 500 14px Consolas, 'Courier New', monospace; }
.stepper input::-webkit-inner-spin-button { appearance: none; }
.primary-button { display: flex; justify-content: space-between; align-items: center; width: 100%; min-height: 48px; margin-top: 29px; padding: 0 17px; color: #fff; background: var(--green); border: 0; border-radius: 5px; cursor: pointer; font-size: 13px; font-weight: 600; transition: background .18s, transform .18s; }
.primary-button:hover { background: var(--green-dark); transform: translateY(-1px); }
.primary-button:focus-visible, .stepper-button:focus-visible, .text-button:focus-visible { outline: 3px solid #8eaa85; outline-offset: 2px; }
.error-message { margin: 7px 0 0; color: var(--red); font-size: 12px; }
[hidden] { display: none !important; }
.play-screen { margin-top: 30px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; }
.round-count { color: #a3a79e; }
.letter-grid { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.letter-tile { display: grid; place-items: center; width: clamp(39px, 8vw, 51px); height: clamp(45px, 9vw, 57px); border: 1px solid #e7e9e1; border-radius: 5px; background: #fafbf8; color: var(--ink); font: 600 21px 'Segoe UI', sans-serif; animation: appear .3s both; }
.letter-tile:nth-child(2n) { animation-delay: .035s; }
.letter-tile.is-hidden { color: transparent; background: #eef1eb; border-color: #e5e9df; }
.letter-tile.correct { color: var(--green-dark); background: #e7efe4; border-color: #cfddc9; }
.letter-tile.incorrect { color: var(--red); background: #f8e9e6; border-color: #efcfca; }
.answer-area { margin-top: 24px; }
.answer-field { text-transform: uppercase; }
.result-summary { margin-top: 17px; color: #697064; font-size: 12px; }
.text-button { display: block; margin: 12px auto 0; padding: 8px; color: #747970; border: 0; background: transparent; cursor: pointer; font-size: 12px; }
.text-button:hover { color: var(--green); }
.play-screen .primary-button { margin-top: 19px; }
@keyframes appear { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 600px) {
  .shell { width: min(100% - 30px, 460px); }
  .topbar { height: 68px; }
  .topbar-note { font-size: 8px; letter-spacing: .6px; }
  .game-card { margin-top: 22px; padding: 38px 25px 23px; }
  h1 { letter-spacing: -2px; }
  .intro { margin-bottom: 29px; font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }