:root {
  --bg: #0c1210;
  --panel: #111a16;
  --panel-2: #17221d;
  --line: #2b3932;
  --text: #f4f7f5;
  --muted: #aab8b0;
  --accent: #b9ff5d;
  --warning: #ffd56b;
  --radius: 22px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.6; }
button, input, select { font: inherit; }
button { cursor: pointer; }
.hero { padding: 26px clamp(20px, 5vw, 72px) 70px; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 75% 15%, rgba(185,255,93,.15), transparent 35%); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: -.03em; font-size: 1.35rem; }
.status-pill { border: 1px solid var(--line); padding: 7px 12px; border-radius: 999px; color: var(--muted); font-size: .82rem; }
.status-pill[data-tone="success"] { color: var(--accent); border-color: rgba(185,255,93,.4); }
.status-pill[data-tone="warning"] { color: var(--warning); }
.hero-copy { max-width: 980px; padding-top: 76px; }
.eyebrow { margin: 0 0 10px; color: var(--accent); letter-spacing: .16em; font-weight: 800; font-size: .76rem; }
h1 { margin: 0; font-size: clamp(3rem, 8vw, 7.5rem); line-height: .9; letter-spacing: -.07em; max-width: 980px; }
h1 span { color: var(--accent); }
.lede { max-width: 720px; color: var(--muted); font-size: clamp(1rem, 2vw, 1.3rem); margin: 32px 0 0; }
main { padding: 0 clamp(20px, 5vw, 72px) 80px; }
.workspace { max-width: 1180px; margin: 56px auto 0; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 4vw, 42px); }
.section-heading { display: flex; justify-content: space-between; gap: 28px; align-items: end; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -.04em; }
.demo-note { max-width: 380px; color: var(--muted); margin: 0; }
.judge-demo { display: grid; grid-template-columns: minmax(0, .9fr) minmax(340px, 1.1fr); gap: 18px; margin-top: 34px; }
.judge-demo-intro, .activity-panel { border: 1px solid var(--line); border-radius: 18px; background: var(--bg); padding: clamp(20px, 3vw, 28px); }
.judge-demo-intro h3, .activity-head h3 { margin: 0; font-size: clamp(1.35rem, 2.4vw, 2rem); line-height: 1.15; letter-spacing: -.03em; }
.judge-demo-intro > p:not(.eyebrow) { color: var(--muted); }
.judge-prompt { margin-top: 18px; border-left: 3px solid var(--accent); background: var(--panel-2); border-radius: 0 12px 12px 0; padding: 16px; }
.judge-prompt p { margin: 10px 0 0; color: var(--text); }
.prompt-head, .activity-head, .activity-count, .activity-alert, .pickup-row, .pickup-total { display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.prompt-head span { color: var(--accent); font-size: .78rem; font-weight: 800; }
.activity-head { align-items: start; }
.live-badge { color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 6px 9px; font-size: .65rem; font-weight: 800; white-space: nowrap; }
.live-badge i { display: inline-block; width: 6px; height: 6px; margin-right: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.activity-empty { margin-top: 26px; padding: 26px 14px; border: 1px dashed var(--line); border-radius: 12px; color: var(--muted); text-align: center; }
.activity-summary { display: grid; gap: 8px; margin-top: 22px; }
.activity-count, .activity-alert { border: 1px solid var(--line); border-radius: 11px; padding: 9px 12px; color: var(--muted); }
.activity-count.active { color: var(--text); border-color: rgba(185,255,93,.32); }
.activity-count code { color: inherit; }
.activity-count strong { color: var(--accent); }
.activity-alert span { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .72rem; }
.activity-alert.danger { color: #ff9b87; border-color: rgba(255,107,82,.45); background: rgba(255,107,82,.08); }
.activity-alert.pause { color: var(--warning); border-color: rgba(255,213,107,.4); background: rgba(255,213,107,.07); }
.activity-timeline { list-style: none; padding: 16px 0 0; margin: 16px 0 0; border-top: 1px solid var(--line); display: grid; gap: 10px; }
.activity-timeline li { display: grid; grid-template-columns: 8px 1fr auto; align-items: center; gap: 10px; font-size: .78rem; }
.activity-timeline li > i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.activity-timeline li[data-tone="danger"] > i { background: #ff6b52; }
.activity-timeline li[data-tone="pause"] > i { background: var(--warning); }
.activity-timeline li[data-tone="running"] > i { animation: pulse 1s infinite; }
.activity-timeline li div { min-width: 0; display: flex; gap: 8px; }
.activity-timeline li div span { color: var(--muted); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.activity-timeline li > code { color: var(--muted); text-align: right; }
@keyframes pulse { 50% { opacity: .25; } }
.controls { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; margin: 38px 0 22px; align-items: end; }
label > span, .ask-panel > label { display: block; color: var(--muted); font-size: .88rem; margin-bottom: 8px; }
select, input { width: 100%; background: var(--bg); border: 1px solid var(--line); color: var(--text); border-radius: 14px; padding: 14px 16px; outline: none; }
select:focus, input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(185,255,93,.12); }
.current-city { border: 1px solid var(--line); border-radius: 14px; padding: 13px 16px; color: var(--muted); }
.ask-panel { border-top: 1px solid var(--line); padding-top: 24px; }
.ask-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; }
button { border-radius: 14px; padding: 13px 18px; border: 1px solid transparent; font-weight: 750; }
.primary { background: var(--accent); color: #111; }
.secondary { background: transparent; color: var(--text); border-color: var(--line); }
#prepare-pickup { margin-top: 12px; }
.result-card { margin-top: 28px; border: 1px solid rgba(185,255,93,.38); border-radius: 18px; background: linear-gradient(180deg, rgba(185,255,93,.08), rgba(185,255,93,.02)); padding: 26px; }
.card-head { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.card-head h2 { margin: 0; font-size: 2rem; }
.demo-badge { padding: 7px 10px; border-radius: 999px; color: var(--warning); border: 1px solid rgba(255,213,107,.35); font-size: .78rem; }
.result-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 24px 0; }
.result-grid > div { background: rgba(12,18,16,.55); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.result-grid dt { color: var(--muted); font-size: .78rem; }
.result-grid dd { margin: 4px 0 0; font-weight: 800; }
.result-grid.compact { grid-template-columns: repeat(2, minmax(0,1fr)); }
.pickup-list { display: grid; gap: 10px; margin: 22px 0; }
.pickup-row { border: 1px solid var(--line); border-radius: 13px; padding: 13px 15px; }
.pickup-row div { display: grid; }
.pickup-row span, .pickup-total span { color: var(--muted); font-size: .8rem; }
.pickup-total { border-top: 1px solid var(--line); padding-top: 16px; }
.instruction { font-size: 1.05rem; }
.provenance { display: flex; flex-wrap: wrap; gap: 16px; color: var(--muted); font-size: .8rem; }
.proof-grid { max-width: 1180px; margin: 24px auto 0; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.proof-grid article { border: 1px solid var(--line); border-radius: 18px; padding: 24px; background: var(--panel); }
.proof-grid span { color: var(--accent); font-weight: 900; }
.proof-grid h3 { margin-bottom: 6px; }
.proof-grid p { color: var(--muted); margin: 0; }
.tools-section { max-width: 1180px; margin: 72px auto 0; }
.tool-list { display: flex; gap: 10px; flex-wrap: wrap; }
.tool-list code { border: 1px solid var(--line); border-radius: 999px; padding: 10px 14px; background: var(--panel); color: var(--accent); }
.manifesto { font-size: clamp(2rem, 5vw, 4rem); letter-spacing: -.05em; margin: 48px 0 0; }
.manifesto strong { color: var(--accent); }
.confirm-dialog { max-width: 620px; width: calc(100% - 32px); border: 1px solid var(--line); border-radius: 20px; background: var(--panel-2); color: var(--text); padding: 28px; }
.confirm-dialog::backdrop { background: rgba(0,0,0,.72); backdrop-filter: blur(4px); }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.muted { color: var(--muted); }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--accent); color: #111; border-radius: 999px; padding: 12px 18px; font-weight: 700; box-shadow: 0 10px 40px rgba(0,0,0,.35); }
pre { white-space: pre-wrap; overflow-wrap: anywhere; color: var(--muted); }
@media (max-width: 760px) {
  .section-heading { display: block; }
  .demo-note { margin-top: 16px; }
  .controls, .ask-row, .judge-demo { grid-template-columns: 1fr; }
  .result-grid, .proof-grid { grid-template-columns: 1fr; }
  .current-city { display: none; }
  .card-head { display: block; }
  .demo-badge { display: inline-block; margin-top: 10px; }
  .dialog-actions { flex-direction: column-reverse; }
  .activity-timeline li { grid-template-columns: 8px 1fr; }
  .activity-timeline li > code { grid-column: 2; text-align: left; }
}