.rw-root, .rw-body { overscroll-behavior-y: none; }
.rw-body {
  --rw-bg: #eef2f8;
  --rw-panel: #ffffff;
  --rw-line: #c8d2e3;
  --rw-text: #132033;
  --rw-muted: #5a6882;
  --rw-brand: #1344b8;
  --rw-brand-dark: #0f2e80;
  --rw-brand-soft: #e8efff;
  --rw-hero: #0e389d;
  --rw-shade-white: #ffffff;
  --rw-shade-light: #cfd5dd;
  --rw-shade-dark: #9ea7b2;
  --rw-grid-line: #b7c2ce;
  box-sizing: border-box;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background: var(--rw-bg);
  color: var(--rw-text);
  font-family: "Trebuchet MS", "Segoe UI", Arial, sans-serif;
}
.rw-body *, .rw-body *::before, .rw-body *::after { box-sizing: border-box; }
.rw-shell { width: min(100%, 780px); margin: 0 auto; padding: max(8px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(22px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); }
.rw-shell--play { width: min(100%, 620px); }
.rw-topbar { display: flex; justify-content: center; padding: 6px 10px 5px; background: var(--rw-hero); border: 1px solid #1b4ab8; border-radius: 20px 20px 0 0; }
.rw-topbar--play { position: relative; align-items: center; }
.rw-top-control { position: absolute; top: 6px; display: inline-flex; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; padding: 3px 9px; border: 1px solid #7f9de0; border-radius: 12px; background: rgba(255,255,255,.08); color: #eaf0ff; font: 800 .72rem "Trebuchet MS", "Segoe UI", Arial, sans-serif; text-decoration: none; }
.rw-home-control { left: 8px; }
.rw-menu-button { right: 8px; font-size: .85rem; cursor: pointer; }
.rw-brand { display: flex; flex-direction: column; align-items: center; color: #fff; line-height: .9; letter-spacing: .04em; text-decoration: none; }
.rw-brand-name { font-size: clamp(2.2rem, 8vw, 3.15rem); font-weight: 900; }
.rw-brand-game { margin-top: 5px; color: #d9e4ff; font-size: clamp(.78rem, 2.8vw, 1rem); font-weight: 800; letter-spacing: .28em; padding-left: .28em; }
.rw-hero { padding: 2px 10px 7px; text-align: center; color: #fff; background: var(--rw-hero); border-right: 1px solid #1b4ab8; border-left: 1px solid #1b4ab8; }
.rw-hero h1 { margin: 0; color: #eaf0ff; font-size: clamp(1.08rem, 4.5vw, 1.35rem); letter-spacing: .06em; }
.rw-puzzle-difficulty { margin: 1px 0 0; color: #d9e4ff; font-size: .72rem; font-weight: 700; line-height: 1.15; letter-spacing: .04em; }
.rw-panel, .rw-play-panel { padding: 14px 12px; background: var(--rw-panel); border: 1px solid var(--rw-line); border-radius: 0 0 26px 26px; box-shadow: 0 10px 28px rgba(15,23,42,.06); }
.rw-play-panel { position: relative; }
.rw-panel--tint, .rw-play-panel { background: var(--rw-brand-soft); }
.rw-body [hidden] { display: none !important; }
.rw-start-overlay { position: absolute; inset: -6px; z-index: 5; display: flex; align-items: center; justify-content: center; padding: 14px; border-radius: 18px; background: rgba(232,239,255,.58); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.rw-start-card { display: grid; width: min(100%, 300px); gap: 10px; padding: 14px; border: 1px solid #b7c9ef; border-radius: 18px; background: rgba(255,255,255,.94); box-shadow: 0 12px 28px rgba(15,46,128,.18); }
.rw-start-card .rw-button { width: 100%; text-decoration: none; }
.rw-play-panel--pre-start > :not(.rw-start-overlay) { opacity: .62; pointer-events: none; user-select: none; }
.rw-status-bar { display: flex; justify-content: center; gap: 5px; flex-wrap: wrap; max-width: 440px; margin: 0 auto 7px; }
.rw-status-pill { padding: 4px 8px; border: 1px solid #d5def0; border-radius: 999px; background: #f5f8ff; color: #335078; font-size: .8rem; }
.rw-intro { max-width: 520px; margin: 0 auto 14px; text-align: center; color: var(--rw-muted); line-height: 1.4; }
.rw-tutorial-video-block { margin: 0 auto 24px; text-align: center; }
.rw-tutorial-video-block p { margin: 0 0 10px; font-weight: 700; }
.rw-tutorial-video-block video { display: block; width: min(100%, 340px); height: auto; aspect-ratio: 9 / 16; margin: 0 auto; border-radius: 12px; background: #101827; }
.rw-tutorial-link { width: min(100%, 520px); margin: 0 auto 10px; text-decoration: none; }
.rw-puzzle-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; max-width: 520px; margin: 0 auto; }
.rw-puzzle-list.rw-puzzle-list--daily { grid-template-columns: 1fr; justify-items: center; }
.rw-daily-start { width: min(100%, 360px); text-decoration: none; }
.rw-daily-difficulty { margin: 2px 0 0; color: var(--rw-muted); font-size: .86rem; font-weight: 700; text-align: center; }
.rw-puzzle-link, .rw-button { min-height: 48px; border: 1px solid #b7c9ef; border-radius: 14px; font: 700 .95rem "Trebuchet MS", "Segoe UI", Arial, sans-serif; }
.rw-puzzle-link { display: flex; align-items: center; gap: 8px; padding: 0 14px; background: #fff; color: var(--rw-brand-dark); text-decoration: none; }
.rw-puzzle-link small { margin-left: auto; color: var(--rw-muted); font-size: .72rem; }
.rw-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; padding: 8px 5px; border-right: 1px solid #1b4ab8; border-left: 1px solid #1b4ab8; background: var(--rw-hero); }
.rw-tabs a { padding: 7px 3px; border: 1px solid rgba(255,255,255,.5); border-radius: 999px; color: #fff; font-size: clamp(.7rem, 3vw, .86rem); font-weight: 800; text-align: center; text-decoration: none; }
.rw-tabs a[aria-current="page"] { background: #fff; color: var(--rw-brand-dark); }
.rw-section-link { margin: 18px 0 0; text-align: center; }
.rw-status--error { min-height: auto; margin: 20px; padding: 12px; border: 1px solid #a52a2a; border-radius: 10px; color: #7a1111; }
.rw-completion-slot { width: 1.1em; flex: 0 0 1.1em; color: var(--rw-brand); font-weight: 900; }
.rw-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(4px, 1.8vw, 8px); width: min(100%, 472px); margin: 0 auto 14px; touch-action: none; }
.rw-tile { position: relative; display: flex; align-items: center; justify-content: center; width: 100%; aspect-ratio: 1; padding: 0; border: 2px solid var(--rw-grid-line); border-radius: clamp(9px, 3vw, 14px); color: var(--rw-text); font: 400 clamp(1.35rem, 7vw, 2rem)/1 "Trebuchet MS", "Segoe UI", Arial, sans-serif; box-shadow: inset 0 -1px 0 rgba(255,255,255,.4); user-select: none; touch-action: none; }
.rw-tile-letter { position: relative; z-index: 1; }
.rw-tile--white { background: var(--rw-shade-white); }
.rw-tile--light { background: var(--rw-shade-light); }
.rw-tile--dark { background: var(--rw-shade-dark); }
.rw-words-panel { padding: 12px 8px; background: #fff; border: 1px solid var(--rw-line); border-radius: 20px; }
.rw-words-panel h2 { margin: 0 0 10px; text-align: center; color: #0f2239; font-size: clamp(1.02rem, 4vw, 1.22rem); letter-spacing: .04em; }
.rw-word-list { display: grid; gap: 9px; }
.rw-word-row { --rw-slot-gap: clamp(2px, 1vw, 6px); display: flex; flex-wrap: wrap; justify-content: center; gap: var(--rw-slot-gap); width: 100%; min-width: 0; }
.rw-word-slot { display: flex; flex: 0 0 clamp(24px, calc((100% - (var(--rw-word-length) - 1) * var(--rw-slot-gap)) / var(--rw-word-length)), 40px); align-items: center; justify-content: center; width: clamp(24px, calc((100% - (var(--rw-word-length) - 1) * var(--rw-slot-gap)) / var(--rw-word-length)), 40px); aspect-ratio: 1; border: 1px solid var(--rw-line); border-radius: clamp(6px, 2vw, 10px); background: #f7f9fc; color: var(--rw-text); font-size: clamp(.82rem, 4.2vw, 1.25rem); font-weight: 800; line-height: 1; }
.rw-word-slot--given, .rw-word-slot[data-state="given"] { color: var(--rw-muted); }
.rw-word-slot--filled, .rw-word-slot[data-state="filled"] { color: #132033; }
.rw-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; max-width: 360px; margin: 12px auto 0; }
.rw-button { display: flex; align-items: center; justify-content: center; padding: 0 14px; }
.rw-button--primary { background: var(--rw-brand); color: #fff; }
.rw-button--secondary { background: #fff; color: var(--rw-brand-dark); }
.rw-button:disabled { opacity: .55; cursor: default; }
.rw-tile:focus-visible, .rw-word-slot:focus-visible, .rw-button:focus-visible, .rw-puzzle-link:focus-visible, .rw-back-link:focus-visible, .rw-tabs a:focus-visible, .rw-brand:focus-visible, .rw-results-complete:focus-visible { outline: 3px solid #ffbf47; outline-offset: 2px; }
.rw-tile--selected { outline: 4px solid var(--rw-brand); outline-offset: 2px; }
.rw-tile--used::before, .rw-tile--used::after { position: absolute; z-index: 0; width: 90%; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--rw-brand) 0 24%, transparent 24% 76%, var(--rw-brand) 76% 100%); pointer-events: none; opacity: .72; content: ""; }
.rw-tile--used::before { transform: rotate(45deg); }
.rw-tile--used::after { transform: rotate(-45deg); }
.rw-tile--used { cursor: default; }
.rw-word-slot--invalid { border-color: #a51d2d; outline: 2px solid #a51d2d; }
.rw-word-slot--given.rw-word-slot--filled { color: var(--rw-text); }
.rw-drag-ghost { position: fixed; z-index: 1000; display: flex; align-items: center; justify-content: center; width: 58px; height: 58px; border: 3px solid var(--rw-brand); border-radius: 12px; color: var(--rw-text); font-size: 1.7rem; font-weight: 700; pointer-events: none; opacity: .92; transform: translate(-50%, -50%); box-shadow: 0 8px 20px rgba(15,32,51,.25); }
.rw-status { min-height: 2.8em; max-width: 480px; margin: 9px auto 0; color: var(--rw-brand-dark); text-align: center; font-size: .9rem; line-height: 1.35; }
.rw-complete { max-width: 360px; margin: 4px auto 0; text-align: center; color: var(--rw-brand-dark); }
.rw-complete strong { display: block; margin-bottom: 8px; letter-spacing: .05em; }
.rw-complete .rw-button { text-decoration: none; }
.rw-completion-slot--complete::before { content: "✓"; }
.rw-results-card { width: 100%; max-width: 520px; margin: 4px auto 8px; overflow: hidden; border: 1px solid #b7c9ef; border-radius: 18px; background: #fff; color: var(--rw-text); text-align: center; }
.rw-results-banner { padding: 12px; background: var(--rw-brand); color: #fff; }
.rw-results-brand { color: #fff; font-size: 1.65rem; font-weight: 900; letter-spacing: .06em; }
.rw-results-puzzle { margin-top: 4px; color: #eaf0ff; font-size: .9rem; font-weight: 700; }
.rw-results-main { display: grid; gap: 14px; justify-items: center; padding: 22px 14px; }
.rw-results-complete { color: var(--rw-brand-dark); font-size: clamp(1.35rem, 5vw, 1.8rem); letter-spacing: .04em; }
.rw-results-stats { display: grid; gap: 7px; width: 100%; }
.rw-results-stat { color: var(--rw-brand-dark); font-size: .96rem; font-weight: 800; }
.rw-results-action { width: 100%; min-height: 54px; margin: 0; border-width: 1px 0 0; border-radius: 0; text-decoration: none; }
.rw-menu-overlay { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; padding: 14px; background: rgba(8,19,47,.45); }
.rw-menu-overlay.hidden { display: none; }
.rw-menu-card { width: min(100%, 420px); max-height: calc(100vh - 28px); max-height: calc(100dvh - 28px); overflow-y: auto; padding: 14px; border: 1px solid var(--rw-line); border-radius: 14px; background: #fff; }
.rw-menu-card h2 { margin: 0 0 8px; color: #17356e; font-size: 1.17rem; }
.rw-menu-actions { display: grid; gap: 7px; }
.rw-contact-copy { margin: 0 0 10px; color: #334a72; font-size: .92rem; line-height: 1.35; }
.rw-contact-copy a { color: var(--rw-brand-dark); font-weight: 700; }
.rw-contact-feedback { min-height: 1.2em; margin: 0 0 10px; color: var(--rw-brand-dark); font-size: .88rem; font-weight: 700; text-align: center; }
.rw-back-link { display: block; width: fit-content; margin: 12px auto 0; color: var(--rw-brand-dark); font-size: .9rem; font-weight: 700; }
.rw-footer { padding: 12px 0 4px; text-align: center; color: var(--rw-muted); font-size: .84rem; }
.rw-footer-line { display: block; width: 108px; height: 1px; margin: 0 auto 7px; background: var(--rw-line); }
@media (min-width: 620px) { .rw-puzzle-list { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 360px) {
  .rw-shell { padding: max(8px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); }
  .rw-panel, .rw-play-panel { padding-right: 8px; padding-left: 8px; }
  .rw-words-panel { padding-right: 5px; padding-left: 5px; }
  .rw-word-row { gap: 3px; }
}
.rw-shell--tutorial { width: min(100%, 780px); overflow-x: hidden; }
.rw-tutorial-panel { padding: 12px; }
.rw-tutorial-intro { margin: 2px 0 8px; color: var(--rw-brand-dark); text-align: center; }
.rw-tutorial-steps { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.rw-tutorial-step { padding: clamp(14px, 4vw, 24px); border: 1px solid var(--rw-line); border-radius: 20px; background: #fff; box-shadow: 0 4px 14px rgba(15,23,42,.04); }
.rw-tutorial-step p { max-width: 650px; margin: 12px auto; color: var(--rw-text); font-size: clamp(.98rem, 3.2vw, 1.08rem); line-height: 1.55; }
.rw-step-heading { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.rw-step-heading > span { display: grid; width: 40px; height: 40px; flex: 0 0 40px; place-items: center; border-radius: 50%; background: var(--rw-brand); color: #fff; font-size: 1.15rem; font-weight: 900; }
.rw-step-heading h2 { margin: 0; color: var(--rw-brand); font-size: clamp(1.18rem, 4vw, 1.55rem); line-height: 1.15; text-transform: uppercase; }
.rw-tutorial-step img { display: block; width: auto; max-width: min(100%, 650px); height: auto; margin: 16px auto 4px; border-radius: 12px; }
.rw-distance-guide { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; max-width: 650px; margin: 18px auto; }
.rw-distance-guide > div { display: grid; justify-items: center; gap: 6px; padding: 12px 6px; border: 1px solid var(--rw-line); border-radius: 14px; text-align: center; }
.rw-distance-guide span:last-child { color: var(--rw-muted); font-size: .86rem; }
.rw-distance-tile { width: 54px; aspect-ratio: 1; border: 2px solid var(--rw-grid-line); border-radius: 10px; }
.rw-distance-tile--white { background: var(--rw-shade-white); }
.rw-distance-tile--light { background: var(--rw-shade-light); }
.rw-distance-tile--dark { background: var(--rw-shade-dark); }
.rw-word-route { display: grid; gap: 19px; max-width: 420px; margin: 18px auto; padding: 0; list-style: none; counter-reset: rw-route; }
.rw-word-route li { position: relative; padding: 10px; border: 2px solid var(--rw-brand); border-radius: 12px; color: var(--rw-brand-dark); font-weight: 900; text-align: center; counter-increment: rw-route; }
.rw-word-route li::before { content: counter(rw-route); position: absolute; left: 14px; color: var(--rw-brand); }
.rw-word-route li:not(:last-child)::after { content: "↓"; position: absolute; top: 100%; left: 50%; color: var(--rw-brand); font-size: 1.25rem; transform: translateX(-50%); }
.rw-methods { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; max-width: 650px; margin: 16px auto; }
.rw-methods section { padding: 14px; border: 1px solid #8eaddf; border-radius: 14px; background: #eef5ff; }
.rw-methods section:last-child { border-color: #76ba8c; background: #effaf2; }
.rw-methods h3 { margin: 0; color: var(--rw-brand); text-align: center; text-transform: uppercase; }
.rw-methods section:last-child h3 { color: #128941; }
.rw-methods p { margin-bottom: 0; text-align: center; }
.rw-complete-diagrams { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); align-items: center; gap: 12px; max-width: 650px; margin: 0 auto; }
.rw-final-check { max-width: 630px; margin: 18px auto 0; padding: 14px 14px 14px 34px; border-radius: 14px; background: #eaf2ff; color: var(--rw-text); line-height: 1.55; }
.rw-tutorial-finish { width: min(100%, 420px); margin: 18px auto 2px; text-decoration: none; }
.rw-assignment--undo-selected { outline: 4px solid var(--rw-brand-dark); outline-offset: 2px; }
.rw-tile.rw-assignment--undo-selected::before, .rw-tile.rw-assignment--undo-selected::after { height: 3px; opacity: .85; }
.rw-word-slot--drag-over { outline: 3px solid var(--rw-brand); outline-offset: -3px; }
.rw-word-slot--drag-over.rw-word-slot--invalid { outline-color: #a51d2d; }
@media (max-width: 520px) {
  .rw-tutorial-panel { padding: 8px; }
  .rw-tutorial-step { border-radius: 16px; }
  .rw-distance-guide { grid-template-columns: 1fr; }
  .rw-distance-guide > div { grid-template-columns: auto 1fr; align-items: center; justify-items: start; text-align: left; }
  .rw-distance-guide > div span:last-child { grid-column: 2; }
  .rw-methods, .rw-complete-diagrams { grid-template-columns: 1fr; }
}
@media (max-width: 619px) {
  .rw-shell--play { padding: max(4px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); }
  .rw-shell--play .rw-topbar { padding: 3px 8px 2px; border-radius: 14px 14px 0 0; }
  .rw-shell--play .rw-top-control { top: 4px; min-width: 44px; min-height: 44px; padding: 2px 7px; font-size: .68rem; }
  .rw-shell--play .rw-home-control { left: 6px; }
  .rw-shell--play .rw-menu-button { right: 6px; font-size: .78rem; }
  .rw-shell--play .rw-brand-name { font-size: clamp(1.65rem, 7vw, 2.05rem); }
  .rw-shell--play .rw-brand-game { margin-top: 2px; font-size: .68rem; }
  .rw-shell--play .rw-hero { padding: 1px 8px 4px; }
  .rw-shell--play .rw-hero h1 { font-size: 1rem; }
  .rw-play-panel { padding: 7px 8px 8px; border-radius: 0 0 18px 18px; }
  .rw-start-overlay { inset: -4px; padding: 10px; border-radius: 16px; }
  .rw-start-card { width: min(100%, 270px); gap: 8px; padding: 12px; border-radius: 16px; }
  .rw-status-bar { margin-bottom: 4px; }
  .rw-grid { width: min(100%, 300px, 38dvh); gap: clamp(3px, 1.1vw, 5px); margin-bottom: 7px; }
  .rw-tile { border-width: 1px; border-radius: clamp(7px, 2.2vw, 10px); font-size: clamp(1.05rem, 5.6vw, 1.5rem); }
  .rw-words-panel { padding: 6px 5px; border-radius: 14px; }
  .rw-words-panel h2 { margin-bottom: 5px; font-size: .9rem; }
  .rw-word-list { gap: 4px; }
  .rw-controls { gap: 7px; margin-top: 7px; }
  .rw-controls .rw-button { min-height: 44px; }
  .rw-status { min-height: 1.35em; margin-top: 4px; font-size: .78rem; }
  .rw-back-link { margin-top: 5px; font-size: .78rem; }
  .rw-shell--play .rw-footer { padding-top: 6px; font-size: .72rem; }
  .rw-shell--play .rw-footer-line { margin-bottom: 4px; }
  .rw-results-main { padding: 16px 10px; }
}
@media (max-height: 700px) and (max-width: 619px) {
  .rw-grid { width: min(100%, 300px, 36dvh); }
  .rw-word-slot { min-width: 22px; flex-basis: clamp(22px, calc((100% - (var(--rw-word-length) - 1) * var(--rw-slot-gap)) / var(--rw-word-length)), 32px); width: clamp(22px, calc((100% - (var(--rw-word-length) - 1) * var(--rw-slot-gap)) / var(--rw-word-length)), 32px); font-size: clamp(.76rem, 3.8vw, 1rem); }
  .rw-controls .rw-button { min-height: 44px; }
}