:root {
  color-scheme: dark;
  --bg: #151a22;
  --topbar: #111720;
  --surface: #1f2833;
  --active: #27313b;
  --text: #f4f1e9;
  --muted: #98a7b8;
  --dim: #758698;
  --lemon: #ffe987;
  --accent: var(--lemon);
  --positive: #83e8bd;
  --negative: #ff9d96;
  --pending: #8192a0;
  --line: #2c3642;
  --row-alt: #a0b3c10b;
  --row-hover: #ffffff07;
  --highlight: #83e8bd13;
  --on-dark: #f4f1e9;
  --tooltip-bg: #26323d;
  --mono: ui-monospace, "DejaVu Sans Mono", SFMono-Regular, Consolas, monospace;
  --radius: 8px;
  --page-width: 1780px;
  --page-gutter: 36px;
  font: 14px/1.45 Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
button, input, select { font: inherit; }
button, summary, select { cursor: pointer; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 32px; letter-spacing: 0; }
h2 { font-size: 25px; letter-spacing: 0; }
h3 { font-size: 17px; }
small, .muted { color: var(--muted); }
code { font-family: var(--mono); font-size: .9em; overflow-wrap: anywhere; }
button, .button { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); color: var(--text); text-decoration: none; }
button:hover, .button:hover { background: var(--active); text-decoration: none; }
.text-button { padding: 0; border: 0; background: none; color: var(--accent); font-size: inherit; text-decoration: underline; text-underline-offset: 3px; }
.text-button:hover { background: none; }
select, input:not([type=hidden]):not([type=file]) { max-width: 100%; padding: 6px 8px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); color: var(--text); }
.site-header { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: center; gap: 24px; min-height: 100px; padding: 18px max(var(--page-gutter), calc((100% - var(--page-width)) / 2 + var(--page-gutter))); background: var(--topbar); }
.brand { display: flex; align-items: center; flex-shrink: 0; gap: 12px; color: var(--text); }
.brand-logo { display: block; }
.brand-icon { display: block; width: 42px; height: 42px; border-radius: 11px; object-fit: contain; }
.brand-name { display: block; color: var(--text); font-size: 17px; font-weight: 800; line-height: 1.1; letter-spacing: 0; text-decoration: none; }
.brand-logo:hover, .brand-name:hover { text-decoration: none; }
.brand-rules { display: block; margin-top: 4px; font-size: 11px; white-space: nowrap; }
.brand-rules:hover { text-decoration: none; }
.your-score { display: grid; justify-self: end; gap: 2px; min-width: 0; max-width: 240px; text-align: right; font-variant-numeric: tabular-nums; }
.your-score strong { font-size: 26px; line-height: 1; letter-spacing: 0; }
.your-score small { overflow-wrap: anywhere; }
.round-info { min-width: 0; text-align: center; }
.round-label { font-size: 13px; font-weight: 750; }
.round-label span { color: var(--muted); font-weight: 400; }
.timer { display: block; margin: 2px 0; color: var(--accent); font-size: 32px; font-weight: 800; line-height: 1.1; letter-spacing: 0; font-variant-numeric: tabular-nums; white-space: nowrap; }
.timer.long-countdown { font-size: 22px; }
.deadline, .your-score small { color: var(--dim); font-family: inherit; font-size: 11px; line-height: 1.5; }
.deadline { margin-top: 3px; }
.page-container { width: min(100% - 48px, 1152px); margin: 0 auto; }
.page-container { padding: 30px 0 64px; }
.onboarding { max-width: 960px; padding-top: clamp(32px, 6vh, 80px); }
.onboarding-welcome { text-align: center; }
.onboarding-welcome h1 { margin-bottom: 16px; font-size: clamp(36px, 5.5vw, 64px); line-height: 1.05; letter-spacing: 0; }
.onboarding-countdown { display: block; margin: 4px 0 24px; color: var(--accent); font-size: clamp(52px, 12vw, 108px); font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1; letter-spacing: 0; white-space: nowrap; }
.onboarding-countdown.long-countdown { font-size: clamp(34px, 8vw, 76px); }
.countdown-separator { display: inline-block; transform: translateY(-.08em); }
.onboarding-rules { margin-top: 4px; padding: 12px 20px; border-color: var(--accent); color: var(--accent); font-weight: 700; }
.onboarding-team { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px 56px; margin-top: 56px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow-wrap: anywhere; }
.team-role { color: var(--accent); font-weight: 700; }
.onboarding-team p:last-child { margin-bottom: 0; }
.onboarding-members { margin: 0; padding: 0; list-style: none; }
.onboarding-members li { margin: 0; }
.onboarding-account { margin-top: 32px; text-align: center; }
@media (min-width: 721px) {
  .onboarding-page { display: flex; flex-direction: column; min-height: 100svh; }
  .onboarding-page > .site-header { flex-shrink: 0; }
  .onboarding-page > .onboarding { display: flex; flex: 1; flex-direction: column; gap: 24px; width: 100%; max-width: none; padding: clamp(16px, 4vh, 56px) var(--page-gutter) var(--page-gutter); }
  .onboarding-welcome { align-self: center; width: 100%; max-width: 960px; margin-top: auto; }
  .onboarding-team { flex-shrink: 0; margin-top: auto; }
  .onboarding-account { margin-bottom: auto; }
}
@media (min-width: 721px) and (max-height: 650px) {
  .onboarding-page > .onboarding { padding-top: 16px; }
  .onboarding-welcome h1 { margin-bottom: 12px; font-size: clamp(32px, 4vw, 44px); }
  .onboarding-countdown { margin-bottom: 12px; font-size: clamp(44px, 12vh, 72px); }
  .onboarding-team { padding: 20px; }
}
@media (max-width: 600px) { .onboarding-team { grid-template-columns: minmax(0, 1fr); padding: 20px; } }
.rules-page .page-container { max-width: 1040px; font-size: 16px; line-height: 1.6; }
.rules-page h1, .rules-page h2 { font-size: 50px; line-height: 1.2; }
.rules-page h2 { margin-bottom: 20px; }
.rules-page ul, .rules-page ol { margin-left: 0; padding-left: 0; list-style-position: inside; }
.rules-page ul > li::marker { content: "• "; }
.rules-section { display: grid; grid-template-columns: minmax(0, 1fr) 280px; align-items: start; gap: clamp(24px, 4vw, 56px); margin-top: 56px; }
.rules-section-reverse { grid-template-columns: 280px minmax(0, 1fr); }
.rules-section-reverse > .rules-illustration { order: -1; }
.rules-intro { margin-top: 0; }
.rules-intro h1 { margin-bottom: 8px; }
.rules-subtitle { margin-bottom: 24px; color: var(--accent); font-size: 24px; line-height: 1.3; }
.rules-copy { min-width: 0; }
.rules-copy > :last-child { margin-bottom: 0; }
.rules-illustration { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 12px 36px #0003; }
.rules-text { max-width: 760px; margin-top: 56px; }
.rules-return { max-width: 760px; margin-top: 56px; text-align: left; }
.rules-return .button { padding: 12px 20px; border-color: var(--accent); background: var(--accent); color: var(--bg); font-weight: 700; }
.rules-return .button:hover { border-color: #fff2b3; background: #fff2b3; }
.rules-scoring { min-width: 0; width: 100%; max-width: 760px; }
.rules-scoring > h3 { margin: 36px 0 16px; font-size: 26px; line-height: 1.2; }
.rules-scoring > h3:first-child { margin-top: 0; }
.rules-demo { margin: 24px 0; }
.rules-demo .leaderboards { grid-template-columns: minmax(0, 1fr); margin-top: 0; }
.rules-scoring .classification-table { min-width: 640px; }
.rules-scoring .rewrite-matrix { min-width: 580px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: 12px; color: var(--muted); }
li { margin-bottom: 7px; }
.table-scroll { min-width: 0; max-width: 100%; overflow-x: auto; overscroll-behavior-x: contain; }
.number { text-align: right; font-variant-numeric: tabular-nums; }
.team-icon { display: inline-block; width: 13px; height: 13px; margin-right: 4px; vertical-align: -2px; flex-shrink: 0; }
.notice { padding: 12px; border: 1px solid var(--accent); border-radius: var(--radius); color: var(--text); }
.status-success { color: var(--positive); }
.status-error { color: var(--negative); }
.pending-dot { color: var(--pending); }
.pending-dot { display: inline-flex; align-items: center; justify-content: center; width: 16px; height: 20px; flex: none; line-height: 0; vertical-align: middle; }
.pending-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: pending-pulse 1.8s ease-in-out infinite; }
@keyframes pending-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.help-wrap { position: relative; display: inline-flex; vertical-align: middle; }
.help { width: 16px; height: 16px; padding: 0; border: 1px solid currentColor; border-radius: 50%; color: var(--muted); background: none; font: 700 10px/1 Arial, sans-serif; }
.help:hover { background: none; color: var(--text); }
.tooltip { display: none; position: absolute; top: 24px; left: 0; z-index: 20; width: 295px; max-width: calc(100vw - 32px); padding: 12px; border-radius: var(--radius); box-shadow: 0 8px 28px #0007; background: var(--tooltip-bg); color: var(--on-dark); font: 12px/1.5 Arial, sans-serif; text-align: left; white-space: normal; }
.js .tooltip { position: fixed; inset: auto; }
.help-wrap:hover > .tooltip, .help-wrap:focus-within > .tooltip { display: block; }
.empty-state { color: var(--muted); padding: 18px 0; }
.js-only { display: none; }
.js .js-only { display: inline-flex; }
@media (max-width: 1300px) { :root { --page-gutter: 30px; } }
@media (max-width: 1100px) { :root { --page-gutter: 22px; } }
@media (max-width: 720px) {
  :root { --page-gutter: 16px; }
  .page-container { width: calc(100% - 32px); }
  .site-header { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; min-height: 0; padding: 12px 16px; }
  .brand { min-width: 0; height: auto; gap: 9px; }
  .brand-text { min-width: 0; }
  .brand-icon { width: 34px; height: 34px; }
  .brand-name { font-size: 14px; }
  .brand-rules { font-size: 10px; white-space: normal; }
  .your-score { display: none; }
  .round-info { grid-column: 2; grid-row: 1; justify-self: end; text-align: right; }
  .timer { font-size: 26px; }
  .timer.long-countdown { font-size: 20px; }
  .page-container { padding-top: 24px; }
  .rules-section, .rules-section-reverse { grid-template-columns: minmax(0, 1fr); gap: 24px; margin-top: 40px; }
  .rules-section-reverse > .rules-illustration { order: initial; }
  .rules-intro { margin-top: 0; }
  .rules-illustration { max-width: 280px; justify-self: center; }
  .rules-text { margin-top: 40px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .pending-dot::before { animation: none; } }