@font-face { font-family: "Inter"; font-weight: 500; font-display: swap; src: url(fonts/Inter-Medium.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-display: swap; src: url(fonts/Inter-SemiBold.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 700; font-display: swap; src: url(fonts/Inter-Bold.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 800; font-display: swap; src: url(fonts/Inter-ExtraBold.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 900; font-display: swap; src: url(fonts/Inter-Black.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 400; font-display: swap; src: url(fonts/JetBrainsMono-Regular.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 500; font-display: swap; src: url(fonts/JetBrainsMono-Medium.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 600; font-display: swap; src: url(fonts/JetBrainsMono-SemiBold.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 700; font-display: swap; src: url(fonts/JetBrainsMono-Bold.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 800; font-display: swap; src: url(fonts/JetBrainsMono-ExtraBold.woff2) format("woff2"); }

:root {
  --paper: #F4EEE2; --paper-2: #E8E0D3; --ink: #11110F; --dim: #57524B; --faint: #706A5E;
  --rule: #CEC5B5; --accent: #D7442F; --panel: rgba(255,255,255,.45); --panel-line: #DCD3C3;
  --shadow: 0 1px 0 rgba(17,17,15,.04), 0 18px 40px -24px rgba(17,17,15,.35);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #16181C; --paper-2: #101215; --ink: #F1ECE3; --dim: #B5AEA2; --faint: #8F897E;
    --rule: #2B2E34; --accent: #FF6A4D; --panel: rgba(255,255,255,.03); --panel-line: #2B2E34;
    --shadow: 0 18px 40px -24px rgba(0,0,0,.8);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--ink); font: 500 16px/1.55 var(--sans);
  background: linear-gradient(180deg, var(--paper), var(--paper-2)) fixed;
  min-height: 100vh;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
a { color: inherit; }
code { font: 500 .88em var(--mono); background: var(--panel); padding: 1px 5px; border-radius: 4px; border: 1px solid var(--panel-line); }

.tick { display: inline-block; width: 14px; height: 2px; background: var(--accent); vertical-align: middle; margin-right: 8px; }
.section-head, .kicker { font: 700 11px/1 var(--mono); letter-spacing: .16em; color: var(--dim); margin: 0 0 14px; }

.masthead { border-bottom: 1px solid var(--rule); }
.masthead .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font: 900 19px var(--sans); letter-spacing: -.02em; text-decoration: none; display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 22px; height: 22px; border-radius: 6px; background:
  linear-gradient(var(--accent),var(--accent)) 4px 13px/3px 5px no-repeat,
  linear-gradient(var(--ink),var(--ink)) 9.5px 8px/3px 10px no-repeat,
  linear-gradient(var(--ink),var(--ink)) 15px 4px/3px 14px no-repeat;
  border: 1.5px solid var(--ink); }
nav a { font: 600 14px var(--sans); color: var(--dim); text-decoration: none; margin-left: 22px; }
nav a:hover { color: var(--ink); }

.intro { padding: 56px 0 28px; max-width: 760px; }
.intro h1 { font: 900 clamp(36px, 6vw, 60px)/1.02 var(--sans); letter-spacing: -.035em; margin: 0 0 18px; }
.intro h1 em { font-style: normal; color: var(--accent); }
.lede { font-size: 18px; color: var(--dim); margin: 0; max-width: 640px; }

.panel { background: var(--panel); border: 1px solid var(--panel-line); border-radius: 18px; box-shadow: var(--shadow); }
.upload { padding: 10px; margin: 8px 0 34px; }
.drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  min-height: 190px; padding: 28px; border: 1.5px dashed var(--rule); border-radius: 12px; cursor: pointer;
  text-align: center; transition: border-color .15s, background .15s;
}
.drop:hover, .drop.over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, transparent); }
.drop-icon { width: 46px; height: 46px; border-radius: 12px; border: 1.5px solid var(--ink); position: relative; margin-bottom: 8px; }
.drop-icon::before, .drop-icon::after { content: ""; position: absolute; left: 50%; background: var(--accent); }
.drop-icon::before { width: 2px; height: 18px; top: 11px; margin-left: -1px; }
.drop-icon::after { width: 10px; height: 10px; top: 10px; margin-left: -5px; background: none;
  border-left: 2px solid var(--accent); border-top: 2px solid var(--accent); transform: rotate(45deg); }
.drop-title { font: 800 22px var(--sans); letter-spacing: -.01em; }
.drop-sub { color: var(--dim); font-size: 14px; }
.drop-file { font: 600 13px var(--mono); color: var(--accent); min-height: 1.2em; }

.choose { padding: 16px 18px 8px; }
.choose p { margin: 0 0 10px; }
.choose-row { display: flex; gap: 10px; flex-wrap: wrap; }
select { flex: 1; min-width: 240px; font: 600 15px var(--sans); padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--panel-line); background: var(--paper); color: var(--ink); }
.error { margin: 12px 8px 6px; padding: 12px 14px; border-radius: 10px; color: #fff; background: var(--accent); font-weight: 600; }

.btn { font: 700 14px var(--sans); padding: 11px 18px; border-radius: 10px; border: 1.5px solid var(--ink);
  background: var(--ink); color: var(--paper); cursor: pointer; transition: transform .08s, opacity .15s; }
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: progress; transform: none; }
.btn.ghost { background: transparent; color: var(--ink); }

.themes { margin-bottom: 40px; }
.theme-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 12px; }
.theme { border: 1.5px solid transparent; border-radius: 14px; padding: 0; cursor: pointer; background: none;
  text-align: left; color: var(--ink); font: inherit; }
.theme .swatch { display: block; height: 78px; border-radius: 12px; position: relative; overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.08); }
.theme .swatch i { position: absolute; left: 10px; height: 4px; border-radius: 2px; }
.theme .swatch b { position: absolute; left: 10px; top: 10px; font: 900 18px/1 var(--sans); letter-spacing: -.02em; }
.theme .name { display: block; font: 700 13px var(--sans); padding: 7px 4px 0; }
.theme[aria-checked="true"] { border-color: var(--accent); padding: 3px; }
.theme[aria-checked="true"] .name { padding-left: 1px; }
.theme:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.result { margin: 0 0 48px; }
.result-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 16px; }
.result h2 { font: 900 clamp(26px, 4vw, 38px)/1.05 var(--sans); letter-spacing: -.03em; margin: 0; }
.meta { margin: 6px 0 0; color: var(--dim); font: 500 14px var(--mono); }
.tabs { display: flex; background: var(--panel); border: 1px solid var(--panel-line); border-radius: 12px; padding: 4px; }
.tab { font: 700 14px var(--sans); border: 0; background: none; color: var(--dim); padding: 9px 16px; border-radius: 9px; cursor: pointer; }
.tab.active { background: var(--ink); color: var(--paper); }

.notes { list-style: none; margin: 0 0 16px; padding: 12px 16px; border-radius: 12px; border: 1px solid var(--panel-line);
  background: var(--panel); font-size: 14px; color: var(--dim); }
.notes li { padding: 3px 0 3px 22px; position: relative; }
.notes li::before { content: ""; position: absolute; left: 4px; top: 12px; width: 8px; height: 2px; background: var(--accent); }

.stage { position: relative; }
.card-frame { border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); line-height: 0; }
.card-frame svg { width: 100%; height: auto; display: block; }
.busy { position: absolute; inset: 0; z-index: 2; display: flex; align-items: center; justify-content: center; gap: 10px;
  font: 700 13px var(--mono); letter-spacing: .1em; color: var(--ink); background: color-mix(in srgb, var(--paper) 70%, transparent);
  border-radius: 14px; backdrop-filter: blur(2px); }
.busy span { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--rule); border-top-color: var(--accent); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.downloads { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 18px; }
.hint { color: var(--dim); font: 500 13px var(--mono); }
.dl-guide { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 18px 0 10px; }
.dl-guide > div { background: var(--panel); border: 1px solid var(--panel-line); border-radius: 12px; padding: 12px 14px; }
.dl-guide dt { font: 700 12px var(--mono); letter-spacing: .12em; color: var(--accent); margin-bottom: 4px; }
.dl-guide dd { margin: 0; font-size: 14px; color: var(--dim); line-height: 1.45; }
.tab-guide { color: var(--dim); margin: 6px 0 0; }
@media (max-width: 640px) { .dl-guide { grid-template-columns: 1fr; } }

.info { border-top: 1px solid var(--rule); padding: 32px 0 8px; max-width: 820px; }
.info p { color: var(--dim); }
.small { font-size: 14px; }
.contest-list { columns: 2; column-gap: 28px; padding: 0; list-style: none; font-size: 14px; }
.contest-list li { padding: 3px 0; break-inside: avoid; }
.contest-list li span { font: 500 12px var(--mono); color: var(--faint); margin-left: 6px; }
.contest-list li.off { opacity: .5; }

.foot { border-top: 1px solid var(--rule); margin-top: 40px; padding: 26px 0 40px; color: var(--faint); font: 500 13px var(--mono); }

@media (max-width: 640px) {
  .intro { padding-top: 32px; }
  nav a { margin-left: 14px; }
  .contest-list { columns: 1; }
  .result-head { align-items: stretch; }
  .tabs { width: 100%; } .tab { flex: 1; }
}