/* Stitch checker design, translated to local CSS. Game artwork remains separate. */
@font-face {
  font-family: Inter;
  src: url('../assets/fonts/inter/inter-latin-variable.woff2') format('woff2');
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
}
html { color-scheme: dark; scroll-behavior: smooth; scroll-padding-top: 88px; }
.checker-body {
  --bg: #111319; --panel: #181b22; --panel-2: #1d2027; --text: #f8fafc;
  --muted: #a0aabd; --line: #252934; --accent: #ff7a1a;
  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: 1.6; -webkit-font-smoothing: antialiased;
}
.checker-body [hidden] { display: none !important; }
.checker-body :focus-visible { outline: 3px solid #ff9a50; outline-offset: 4px; }
.checker-body :is(input,select,textarea):focus-visible { outline-offset: 1px; }
.checker-body a { color: #b2bdce; text-underline-offset: 4px; }
.checker-body a:hover { color: #ff9a50; }
.checker-body :is(button,input,select,textarea) { font-family: inherit; }
.checker-body :is(h1,h2,h3,p) { margin-top: 0; }
.checker-brandbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 64px; padding: 10px max(24px,calc((100vw - 1104px)/2)); border-bottom: 1px solid var(--line); background: #0b0e13ed; backdrop-filter: blur(12px); }
.checker-brand { display: inline-flex; align-items: center; gap: 9px; min-width: 0; text-decoration: none; }
.checker-brand img { display: block; width: 30px; height: 30px; flex: none; object-fit: contain; }
.checker-brand > span { color: var(--text); font-size: 16px; font-weight: 750; letter-spacing: -.045em; white-space: nowrap; }
.checker-brand strong { font-weight: inherit; }
.checker-brandbar nav { display: flex; align-items: center; gap: 24px; }
.checker-brandbar nav a { color: #a4afc2; font-size: 13px; font-weight: 500; text-decoration: none; white-space: nowrap; }
.checker-page { width: 100%; max-width: 1152px; margin: 0 auto; padding-inline: 24px; }
.checker-intro { max-width: 830px; padding: 40px 0 48px; }
.checker-kicker { display: inline-flex; align-items: center; margin: 0 0 13px; padding: 3px 10px; border: 1px solid var(--line); border-radius: 99px; background: var(--panel); color: #c0c8d5; font-size: 12px; font-weight: 500; line-height: 1.5; }
.checker-intro h1 { margin: 0 0 12px; font-size: clamp(28px,3vw,36px); font-weight: 750; line-height: 1.2; letter-spacing: -.045em; }
.checker-lead { max-width: 770px; margin: 0; color: #a6b2c4; font-size: 17px; line-height: 1.65; }
.checker-workspace { display: grid; grid-template-columns: minmax(0,5fr) minmax(0,7fr); gap: 32px; align-items: start; }
.checker-control-panel { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.checker-panel-heading { margin-bottom: 22px; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
.checker-panel-heading h2, .checker-result-heading h2 { margin: 0; color: var(--text); font-size: 16px; font-weight: 650; line-height: 1.4; letter-spacing: -.015em; }
.checker-body .checker-form { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 17px 12px; border: 0; padding: 0; margin: 0; border-radius: 0; background: none; }
.checker-form label { display: grid; align-content: start; gap: 7px; min-width: 0; margin: 0; }
.checker-form .checker-field-wide, .checker-actions { grid-column: 1/-1; }
.checker-form .checker-context-fields { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); grid-column: 1/-1; gap: 12px; padding: 0; margin: 0; min-width: 0; border: 0; }
.checker-form label > span { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 3px; color: #b3bed0; font-size: 12px; font-weight: 550; }
.checker-form label em { color: #8f9caf; font-size: 11px; font-style: normal; font-weight: 400; }
.checker-form :is(input,select), .checker-import :is(input,textarea) { display: block; width: 100%; min-width: 0; min-height: 44px; padding: 10px 13px; border: 1px solid #2a2e39; border-radius: 8px; background: #0b0e13; color: #f8fafc; box-shadow: none; font-size: 14px; line-height: 1.45; }
.checker-form select { padding-right: 24px; }
.checker-form :is(input,select):hover, .checker-import :is(input,textarea):hover { border-color: #485163; }
.checker-form input::placeholder, .checker-import :is(input,textarea)::placeholder { color: #8390a5; opacity: 1; }
.checker-form :is(#clientSeedInput,#serverSeedInput,#expectedHashInput,#gameHashInput,#publicSeedInput) { font-family: ui-monospace,SFMono-Regular,Consolas,monospace; font-size: 13px; }
.checker-form small { color: #96a3b8; font-size: 12px; line-height: 1.5; }
.checker-advanced-setting { padding-block: 5px; }
.checker-advanced-setting > summary { color: #a6b3c8; font-size: 13px; font-weight: 500; cursor: pointer; }
.checker-advanced-setting > label { margin-top: 11px; }
.checker-actions { display: grid; grid-template-columns: minmax(0,1fr); justify-content: stretch; align-items: stretch; margin-top: 4px; gap: 8px; }
.checker-body .button { display: inline-flex; justify-content: center; align-items: center; gap: 9px; min-height: 44px; padding: 10px 14px; border: 1px solid transparent; border-radius: 8px; font-size: 14px; font-weight: 650; text-decoration: none; white-space: normal; }
.checker-body .button.primary { background: #ff7a1a; border-color: #ff7a1a; box-shadow: none; color: #111319; }
.checker-body .button.primary:hover { background: #ff8c38; border-color: #ff8c38; }
.checker-body .button.secondary { background: #1d2027; border-color: #333946; color: #e9edf4; }
.checker-body .button.secondary:hover { background: #262a33; }
.checker-body .button:disabled { opacity: .5; cursor: not-allowed; }
#calculateBtn { width: 100%; min-height: 46px; font-size: 14px; }
.checker-import { padding-top: 14px; margin-top: 16px; border-top: 1px solid var(--line); }
.checker-import > summary { color: #a6b3c8; font-size: 12px; font-weight: 500; cursor: pointer; }
.checker-import-content { display: grid; gap: 9px; margin-top: 14px; }
.checker-import-content :is(p,label,a) { margin: 0; color: #aab6c8; font-size: 13px; line-height: 1.6; }
.checker-import-content label { font-weight: 600; color: #e0e7f0; }
.checker-import textarea { resize: vertical; min-height: 100px; font-family: ui-monospace,Consolas,monospace; font-size: 12px; }
.checker-import-content #calculatorUrlStatus, .checker-import-content #importProofStatus { margin-bottom: 8px; }
.checker-session-hash { display: grid; gap: 5px; }
.checker-session-hash code { color: #9caac0; font-size: 12px; overflow-wrap: anywhere; }
.checker-result-panel { display: flex; flex-direction: column; min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.checker-result-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 7px 15px; margin-bottom: 22px; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
.checker-result-heading > span { color: #98a5b9; font-size: 13px; }
.checker-body .checker-result-layout { display: flex; flex-direction: column; flex: 0; min-width: 0; gap: 0; }
.checker-body .checker-visual { display: grid; align-content: center; flex: 0; min-height: 280px; min-width: 0; padding: 0; border: 0; border-radius: 10px; background: #161920; overflow: hidden; }
.checker-visual[data-stale=true]:not(:has(.checker-empty)) > * { opacity: .5; }
.checker-empty { display: grid; justify-items: center; text-align: center; padding: 32px 22px; color: #8491a7; }
.checker-empty svg { margin-bottom: 22px; color: #78869e; transform: rotate(-9deg); }
.checker-empty h3 { max-width: 360px; margin: 0 0 10px; color: #e0e6f0; font-size: 20px; font-weight: 600; letter-spacing: -.025em; line-height: 1.4; }
.checker-empty p { max-width: 320px; margin: 0; color: #98a5ba; font-size: 14px; line-height: 1.7; }
.checker-simple-status { padding: 20px 0 0; min-width: 0; }
.checker-simple-status :is(h3,strong) { display: block; margin: 0 0 5px; font-size: 16px; font-weight: 650; line-height: 1.4; color: #ecf1f8; }
.checker-simple-status :is(p,span) { display: block; margin: 0; color: #a1aec2; font-size: 13px; line-height: 1.65; overflow-wrap: anywhere; }
.checker-simple-status[data-state=matched] :is(h3,strong) { color: #66d5af; }
.checker-simple-status:is([data-state=mismatch],[data-state=error]) :is(h3,strong) { color: #f59aa4; }
.checker-simple-status:is([data-state=pending],[data-state=stale]) :is(h3,strong) { color: #ddc0a6; }
.checker-simple-note { margin: 10px 0 0; max-width: 75ch; color: #a0aec2; font-size: 12px; line-height: 1.65; }
.checker-result-footer { display: flex; margin-top: 23px; padding-top: 18px; border-top: 1px solid var(--line); }
.checker-stats-toggle { display: flex; align-items: center; gap: 9px; width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: #161920; color: #a7b4c8; font-size: 12px; font-weight: 550; text-align: left; cursor: pointer; }
.checker-stats-toggle:hover { background: #1d2027; color: var(--text); border-color: #3a4251; }
.checker-nerd-panel { min-width: 0; margin-top: 24px; padding: 26px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.checker-section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 12px 24px; flex-wrap: wrap; margin-bottom: 23px; }
.checker-section-heading :is(h2,h3) { margin: 0; font-size: 21px; line-height: 1.4; }
.checker-section-heading p { margin: 0; color: #a0aec2; font-size: 14px; }
.checker-audit-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; margin-bottom: 28px; }
.checker-audit-card { min-width: 0; padding: 12px 0 12px 14px; border-left: 3px solid #5d697d; }
.checker-audit-card .checker-audit-label { margin: 0 0 7px; color: #a7b3c6; font-size: 13px; }
.checker-audit-card h3 { margin: 0 0 6px; color: #ecf1f8; font-size: 15px; font-weight: 650; line-height: 1.4; }
.checker-audit-card [data-audit-detail] { margin: 0; color: #a0aec2; font-size: 13px; line-height: 1.6; overflow-wrap: anywhere; }
.checker-audit-card[data-state=matched] { border-left-color: #47b58f; }
.checker-audit-card[data-state=matched] h3 { color: #7fdcba; }
.checker-audit-card[data-state=mismatch] { border-left-color: #d47282; }
.checker-audit-card[data-state=mismatch] h3 { color: #f59aa4; }
.checker-audit-card[data-state=computed] { border-left-color: #caa27b; }
.checker-body .checker-summary { display: grid; gap: 13px; padding: 0; border: 0; border-radius: 0; background: transparent; }
.checker-summary:has(#summaryGrid:empty) { display: none; }
.checker-summary > h3 { margin: 0; color: #e1e8f2; font-size: 17px; }
.checker-summary .my-bets-detail-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1px; padding: 0; border: 1px solid #303643; border-radius: 6px; overflow: hidden; background: #303643; }
.checker-summary .my-bets-detail-grid > div { display: grid; gap: 4px; align-content: start; min-width: 0; padding: 13px; border: 0; border-radius: 0; background: #1d2027; }
.checker-summary .my-bets-detail-grid > div:nth-child(2) { grid-column: 1/-1; }
.checker-summary .label { color: #a0aec2; font-size: 13px; text-transform: none; letter-spacing: 0; font-weight: 400; }
.checker-summary strong { color: #f3f6fa; font-size: 14px; font-weight: 600; overflow-wrap: anywhere; }
.checker-coverage { margin-top: 27px; padding-top: 23px; border-top: 1px solid #303643; }
.checker-coverage h3 { margin: 0 0 12px; font-size: 17px; }
.checker-coverage-status { margin: 0 0 8px; color: #e0e7f1; font-size: 14px; font-weight: 600; }
#evidenceCoverageDetail { margin: 0; color: #a0aec2; font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; }
.checker-evidence-disclosure { margin-top: 15px; }
.checker-evidence-disclosure > summary { padding-block: 5px; color: #c4cedd; font-size: 14px; cursor: pointer; }
.checker-evidence-cases { list-style: none; padding: 0; margin: 12px 0 0; }
.checker-evidence-cases > :is(li,div,article) { padding: 12px 0; border-top: 1px solid #303643; color: #a7b4c8; font-size: 13px; overflow-wrap: anywhere; }
.checker-evidence-cases :is(p,dl) { margin: 7px 0; }
.checker-proof { margin-top: 28px; }
.checker-proof-disclosure { padding-block: 13px; border-top: 1px solid #303643; }
.checker-proof-disclosure > summary { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 15px; padding-block: 6px; cursor: pointer; }
.checker-proof-disclosure > summary strong { color: #e3eaf4; font-size: 15px; font-weight: 600; }
.checker-proof-disclosure > summary small { color: #9eacc0; font-size: 13px; }
.checker-body .checker-output-section { display: block; margin: 12px 0 0; padding: 0; border: 0; border-radius: 0; background: transparent; min-width: 0; }
.checker-hmac-output,.checker-bytes-output { max-height: 460px; }
.checker-hmac-round,.checker-byte-group { background: #0b0e13; border: 1px solid #303643; }
.checker-byte-group > div { grid-template-columns: 20px minmax(0,1fr) minmax(0,1fr); }
.checker-byte-group strong,.checker-byte-group code { overflow-wrap: anywhere; font-size: 13px; }
.checker-byte-grid code { background: #292f3b; }
.checker-body #checkerJson { background: #0b0e13; border: 1px solid #303643; font-size: 12px; max-height: 460px; overflow-wrap: anywhere; }
.checker-technical-note { margin-top: 17px; padding-top: 17px; border-top: 1px solid #303643; color: #a7b4c8; font-size: 14px; }
.checker-technical-note summary { color: #dce5f1; cursor: pointer; }
.checker-technical-note p { margin: 12px 0 0; }
.checker-technical-note code { color: #e3b68c; overflow-wrap: anywhere; }
.checker-help { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; margin-top: 48px; padding-top: 36px; border-top: 1px solid var(--line); }
.checker-help article { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.checker-help h2,.checker-limits h2,.checker-faq-section > h2 { margin-bottom: 18px; font-size: 20px; }
.checker-help p,.checker-limits p { margin: 0 0 13px; color: #a6b3c7; font-size: 14px; line-height: 1.75; }
.checker-help strong { font-weight: 600; color: #e0e8f3; }
.checker-limits { margin-top: 24px; padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: #161920; }
.checker-limits h2 { font-size: 18px; }
.checker-limits p { max-width: 105ch; font-size: 14px; }
.checker-limits strong { color: #cbd6e6; font-weight: 600; }
.checker-faq-section { margin: 40px 0; }
.checker-faq-section > h2 { font-size: 21px; }
.checker-faq { padding: 17px 20px; margin-top: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.checker-faq summary { color: #e2e9f3; font-size: 14px; font-weight: 550; cursor: pointer; }
.checker-faq p { max-width: 95ch; margin: 12px 0 0; color: #a6b3c7; font-size: 14px; line-height: 1.8; }
.checker-supported { margin: 40px 0 64px; }
.checker-supported h2 { margin: 0 0 17px; color: var(--text); font-size: 20px; font-weight: 650; letter-spacing: -.03em; }
.checker-supported nav { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 10px; }
.checker-supported a { font-size: 13px; }
.checker-supported p { max-width: 95ch; margin: 16px 0 0; color: #9baac1; font-size: 13px; line-height: 1.7; }
.checker-footer { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; padding: 29px max(24px,calc((100vw - 1104px)/2)); border-top: 1px solid var(--line); background: #0b0e13; color: #92a1b8; font-size: 12px; }
.checker-footer > a { color: #e4ebf6; font-size: 14px; font-weight: 650; text-decoration: none; }
.checker-footer p { flex: 1; margin: 0; }
.checker-footer nav { display: flex; gap: 18px; }
.checker-noscript { margin: 20px; padding: 20px; border: 1px solid #ff7a1a; }
/* Fallback result containment while game-specific graphics load. */
.checker-visual :is(.checker-simple-visual,.checker-grid-visual) { min-height: 230px; min-width: 0; }
.checker-visual .checker-simple-visual > strong { max-width: 100%; overflow-wrap: anywhere; }
.checker-visual .checker-card-row { flex-wrap: wrap; justify-content: center; }
.checker-visual .my-bets-tome-grid { width: min(560px,100%); min-width: 0; }
.checker-visual .my-bets-tome-grid img { max-width: 100%; }
.checker-visual .checker-step-visual { width: 100%; grid-template-columns: repeat(6,minmax(0,1fr)); }
.checker-visual .checker-tarot-visual { width: 100%; }
.checker-visual .checker-tarot-card { min-width: 0; }

.checker-brand .checker-brand-badge { padding: 2px 7px; border: 1px solid var(--line); border-radius: 4px; background: var(--panel-2); color: #a0aabd; font-family: ui-monospace,Consolas,monospace; font-size: 10px; font-weight: 500; letter-spacing: 0; line-height: 1.5; }
.checker-brandbar nav a:hover { color: var(--text); }
.checker-kicker::before { content: ""; width: 5px; height: 5px; margin-right: 7px; border-radius: 50%; background: var(--accent); }
.checker-panel-heading p,.checker-result-heading p { margin: 3px 0 0; color: #98a5b9; font-size: 12px; line-height: 1.5; }
.checker-stats-icon { flex: none; color: var(--accent); }
.checker-stats-chevron { flex: none; margin-left: auto; color: #8390a6; }
.checker-stats-toggle[aria-expanded=true] .checker-stats-chevron { transform: rotate(180deg); }
.checker-help p:last-child,.checker-limits p:last-child { margin-bottom: 0; }
.checker-supported nav a { display: flex; align-items: center; min-width: 0; min-height: 40px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: #dfe7f2; font-size: 13px; font-weight: 550; text-decoration: none; }
.checker-supported nav a::after { content: "\2197"; margin-left: auto; color: #8090a8; }
.checker-supported nav a:hover { background: #222630; border-color: #414a5c; color: var(--text); }
/* Preserve native game artwork; only the enclosing surface follows Stitch. */
.checker-body .checker-visual .checker-game-result { --cgr-ink: #e8eef7; --cgr-muted: #a0aec4; --cgr-panel: #161920; --cgr-line: #303643; }
.checker-body .checker-visual .checker-game-result .cgr-board { background: #161920; border-color: var(--line); border-radius: 10px; }
@media (max-width: 1000px) {
  .checker-brandbar nav { gap: 16px; }
  .checker-brandbar nav a { font-size: 12px; }
  .checker-brand .checker-brand-badge { display: none; }
  .checker-workspace { gap: 20px; }
  .checker-control-panel,.checker-result-panel { padding: 20px; }
  .checker-audit-grid { grid-template-columns: 1fr; gap: 13px; }
}
@media (max-width: 800px) {
  .checker-brandbar { min-height: 58px; padding-inline: 20px; gap: 15px; }
  .checker-brandbar nav a:not(:last-child) { display: none; }
  .checker-page { padding-inline: 20px; }
  .checker-intro { padding: 30px 0 28px; }
  .checker-intro h1 { font-size: 30px; }
  .checker-lead { font-size: 15px; }
  .checker-workspace { grid-template-columns: minmax(0,1fr); gap: 24px; }
  .checker-control-panel,.checker-result-panel { padding: 22px; }
  .checker-form :is(input,select),.checker-import :is(input,textarea) { min-height: 45px; font-size: 16px; }
  .checker-form :is(#clientSeedInput,#serverSeedInput,#expectedHashInput,#gameHashInput,#publicSeedInput) { font-size: 14px; }
  .checker-body .checker-visual { min-height: 260px; }
  .checker-help { gap: 20px; margin-top: 36px; padding-top: 28px; }
  .checker-help article { padding: 20px; }
  .checker-nerd-panel { padding: 22px; }
  .checker-footer { gap: 15px; padding-inline: 20px; }
  .checker-footer p { flex: 1 1 65%; }
}
@media (max-width: 500px) {
  .checker-brandbar { padding: 10px 16px; min-height: 56px; gap: 10px; }
  .checker-brand { gap: 7px; }
  .checker-brand img { width: 25px; height: 25px; }
  .checker-brand > span:not(.checker-brand-badge) { font-size: 14px; }
  .checker-brandbar nav a { font-size: 11px; }
  .checker-page { padding-inline: 16px; }
  .checker-intro { padding: 27px 0 25px; }
  .checker-intro h1 { font-size: 26px; line-height: 1.22; }
  .checker-kicker { font-size: 11px; margin-bottom: 13px; }
  .checker-lead { font-size: 14px; line-height: 1.7; }
  .checker-control-panel,.checker-result-panel { padding: 18px 16px; }
  .checker-panel-heading,.checker-result-heading { margin-bottom: 19px; padding-bottom: 16px; }
  .checker-form label > span { font-size: 12px; }
  .checker-form small { font-size: 12px; }
  #calculateBtn { min-height: 48px; font-size: 15px; }
  .checker-body .checker-visual { min-height: 240px; }
  .checker-empty { padding: 26px 14px; }
  .checker-empty h3 { font-size: 20px; }
  .checker-empty p { font-size: 14px; }
  .checker-simple-status { padding-top: 18px; }
  .checker-simple-status :is(h3,strong) { font-size: 16px; }
  .checker-result-footer { margin-top: 19px; padding-top: 16px; }
  .checker-help { grid-template-columns: minmax(0,1fr); gap: 16px; }
  .checker-help article,.checker-limits { padding: 20px 18px; }
  .checker-help h2,.checker-limits h2 { font-size: 18px; }
  .checker-faq { padding: 16px; }
  .checker-supported nav { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .checker-supported { margin-bottom: 42px; }
  .checker-nerd-panel { padding: 19px 14px; }
  .checker-summary .my-bets-detail-grid > div { padding: 11px; }
  .checker-summary strong { font-size: 13px; }
  .checker-byte-group { padding: 10px; }
  .checker-byte-group > div { grid-template-columns: 14px minmax(0,1fr); gap: 3px 8px; }
  .checker-byte-group > div code { grid-column: 2; }
  .checker-byte-group strong,.checker-byte-group code { font-size: 12px; }
  .checker-proof-disclosure > summary small { display: none; }
  .checker-visual .checker-step-visual { grid-template-columns: repeat(4,minmax(0,1fr)); }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }