:root {
  --bg: #07090d;
  --surface: #0d1118;
  --surface-2: #121824;
  --line: #273043;
  --text: #f4f7fb;
  --muted: #929db0;
  --amber: #ffb126;
  --blue: #39a8ff;
  --green: #43e39d;
  --red: #ff5266;
  --violet: #9a7bff;
}
* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% 12%, rgba(57, 168, 255, .09), transparent 28rem),
    linear-gradient(180deg, #090c11 0%, var(--bg) 70%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 56px 0 40px; }
.hero { display: flex; justify-content: space-between; align-items: end; gap: 32px; margin-bottom: 34px; }
.eyebrow, .panel-kicker, .drop-kicker, .status-label, .stage-state {
  color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .19em; text-transform: uppercase;
}
h1 { margin: 12px 0 10px; font-size: clamp(54px, 8vw, 108px); line-height: .82; letter-spacing: -.065em; }
.thesis { max-width: 610px; margin: 24px 0 0; color: #c7cfdb; font-size: clamp(17px, 2vw, 22px); }
.hero-status { min-width: 265px; display: flex; gap: 13px; align-items: center; padding: 18px 20px; border: 1px solid var(--line); background: rgba(13,17,24,.84); }
.hero-status strong { display: block; margin-top: 5px; font: 700 14px ui-monospace, SFMono-Regular, Consolas, monospace; }
.status-dot { width: 13px; height: 13px; border-radius: 50%; box-shadow: 0 0 18px currentColor; }
.neutral { color: var(--muted); background-color: var(--muted); }
.success { color: var(--green) !important; }
.failure { color: var(--red) !important; }

.official-loader {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: 28px;
  align-items: center;
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--amber), transparent 45%);
  background:
    radial-gradient(circle at 88% 20%, rgba(255,177,38,.13), transparent 19rem),
    linear-gradient(135deg, rgba(255,177,38,.08), rgba(13,17,24,.96) 45%);
}
.official-loader h2 { margin: 7px 0 10px; font-size: clamp(25px, 3vw, 38px); }
.official-loader p { max-width: 690px; margin: 0 0 15px; color: #c7cfdb; line-height: 1.6; }
.official-loader code { color: var(--amber); font-size: 11px; overflow-wrap: anywhere; }
.official-load {
  display: grid;
  gap: 8px;
  width: 100%;
  min-height: 106px;
  padding: 21px;
  border: 1px solid var(--amber);
  background: var(--amber);
  color: #0b0d11;
  cursor: pointer;
  text-align: left;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.official-load:hover { transform: translateY(-2px); box-shadow: 0 20px 55px rgba(255,177,38,.18); }
.official-load:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.official-load span { font: 850 15px ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .035em; }
.official-load small { opacity: .72; line-height: 1.4; }
.official-load.loading { cursor: wait; background: #d69218; }
.official-load.verified { border-color: var(--green); background: var(--green); }
.official-load.rejected { border-color: var(--red); background: var(--red); }
.manual-divider { display: flex; align-items: center; gap: 14px; margin: 21px 0; color: #67748a; font: 800 10px ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .18em; }
.manual-divider::before, .manual-divider::after { content: ""; height: 1px; flex: 1; background: #202a39; }

.drop-zone { position: relative; border: 1px dashed #3a465a; background: linear-gradient(90deg, rgba(255,177,38,.05), rgba(57,168,255,.05)); transition: .2s ease; }
.drop-zone.dragging { border-color: var(--blue); transform: translateY(-2px); box-shadow: 0 18px 55px rgba(57,168,255,.08); }
.drop-zone input { position: absolute; opacity: 0; pointer-events: none; }
.drop-zone label { display: grid; place-items: center; text-align: center; min-height: 154px; cursor: pointer; padding: 26px; }
.drop-zone label strong { margin: 10px 0 5px; font-size: 21px; }
.drop-zone label small { color: var(--muted); }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin: 28px 0; background: var(--line); border: 1px solid var(--line); }
.metrics article { padding: 22px; background: var(--surface); }
.metrics span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 10px; }
.metrics strong { font: 750 20px ui-monospace, SFMono-Regular, Consolas, monospace; }

.challenge-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(290px, 390px);
  gap: 22px;
  margin: 0 0 28px;
  padding: 26px;
  border: 1px solid #344158;
  background:
    radial-gradient(circle at 90% 14%, rgba(154,123,255,.12), transparent 18rem),
    rgba(13,17,24,.95);
}
.challenge-copy h2 { margin: 7px 0 9px; font-size: clamp(25px, 3vw, 36px); }
.challenge-copy p { max-width: 700px; margin: 0; color: #c7cfdb; line-height: 1.6; }
.challenge-button {
  display: grid;
  gap: 8px;
  min-width: 0;
  min-height: 96px;
  padding: 20px;
  border: 1px solid var(--violet);
  background: rgba(154,123,255,.14);
  color: var(--text);
  cursor: pointer;
  text-align: left;
}
.challenge-button:disabled { cursor: not-allowed; opacity: .48; }
.challenge-button:not(:disabled):hover { background: rgba(154,123,255,.22); }
.challenge-button:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.challenge-button span { overflow-wrap: anywhere; font: 850 14px ui-monospace, SFMono-Regular, Consolas, monospace; }
.challenge-button small { color: #adb7c8; line-height: 1.4; }
.attack-list { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0; padding: 0; list-style: none; }
.attack { display: grid; grid-template-columns: auto 1fr; gap: 13px; align-items: center; padding: 15px; border: 1px solid #293448; background: #101722; }
.attack > span { color: #65738b; font: 750 21px ui-monospace, SFMono-Regular, Consolas, monospace; }
.attack strong, .attack small { display: block; }
.attack strong { font-size: 13px; }
.attack small { margin-top: 5px; color: var(--muted); font: 800 10px ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .08em; }
.attack.running { border-color: var(--amber); }
.attack.rejected { border-color: rgba(67,227,157,.65); background: rgba(67,227,157,.09); }
.attack.rejected small { color: var(--green); }
.attack.failed { border-color: var(--red); }
.attack.failed small { color: var(--red); }
.challenge-summary { grid-column: 1 / -1; margin: 0; color: var(--muted); font: 700 12px ui-monospace, SFMono-Regular, Consolas, monospace; }
.challenge-panel.passed { border-color: rgba(67,227,157,.62); box-shadow: 0 18px 65px rgba(67,227,157,.07); }
.challenge-panel.passed .challenge-summary { color: var(--green); }
.challenge-panel.failed { border-color: rgba(255,82,102,.72); }
.challenge-panel.failed .challenge-summary { color: var(--red); }

.timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin: 0 0 28px; }
.stage { min-height: 210px; padding: 18px; border: 1px solid var(--line); background: var(--surface); display: flex; flex-direction: column; justify-content: space-between; transition: .25s ease; }
.stage.verified { border-color: color-mix(in srgb, var(--green), transparent 52%); background: linear-gradient(145deg, rgba(67,227,157,.12), var(--surface) 48%); transform: translateY(-3px); }
.stage.denied { border-color: color-mix(in srgb, var(--red), transparent 48%); background: linear-gradient(145deg, rgba(255,82,102,.15), var(--surface) 48%); }
.stage-index { color: #536078; font: 700 32px ui-monospace, SFMono-Regular, Consolas, monospace; }
.stage h2 { margin: 7px 0 8px; font-size: 18px; }
.stage p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }

.evidence-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.panel { border: 1px solid var(--line); background: rgba(13,17,24,.92); padding: 24px; }
.panel-heading { display: flex; justify-content: space-between; align-items: start; gap: 20px; margin-bottom: 24px; }
.panel h2 { margin: 6px 0 0; font-size: 20px; }
.badge { padding: 7px 9px; border: 1px solid currentColor; background: transparent; font: 700 11px ui-monospace, SFMono-Regular, Consolas, monospace; white-space: nowrap; }
.badge.neutral { background: transparent; }
dl { margin: 0; }
dl div { display: grid; grid-template-columns: 130px 1fr; gap: 18px; padding: 12px 0; border-top: 1px solid #1b2432; }
dt { color: var(--muted); font-size: 12px; }
dd { margin: 0; overflow: hidden; text-overflow: ellipsis; font: 650 12px ui-monospace, SFMono-Regular, Consolas, monospace; }
.receipt-list { display: grid; gap: 10px; }
.receipt { display: grid; grid-template-columns: 90px 1fr auto; gap: 12px; padding: 12px; background: var(--surface-2); align-items: center; }
.receipt strong { text-transform: uppercase; font-size: 11px; letter-spacing: .08em; }
.receipt code { overflow: hidden; text-overflow: ellipsis; color: var(--muted); font-size: 11px; }
.receipt span { color: var(--green); font: 800 10px ui-monospace, SFMono-Regular, Consolas, monospace; }
.empty { color: var(--muted); }
.limitations-panel { margin-bottom: 20px; }
.limitations-panel ul { margin: 0; padding-left: 20px; color: #bbc4d1; line-height: 1.7; }
.scorecard { margin-bottom: 20px; padding: 26px; border: 1px solid var(--line); background: rgba(13,17,24,.92); }
.scorecard-heading { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 20px; }
.scorecard-heading h2 { margin: 7px 0 0; font-size: clamp(25px, 3vw, 36px); }
.scorecard-heading a { color: var(--amber); font: 800 11px ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .06em; }
.scorecard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.scorecard-grid article { min-height: 190px; padding: 18px; border: 1px solid #263146; background: var(--surface-2); }
.scorecard-grid article > span { color: var(--amber); font: 750 24px ui-monospace, SFMono-Regular, Consolas, monospace; }
.scorecard-grid h3 { margin: 24px 0 10px; font-size: 16px; }
.scorecard-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.failure-panel { display: grid; gap: 8px; padding: 18px 20px; border: 1px solid rgba(255,82,102,.55); background: rgba(255,82,102,.1); margin-bottom: 20px; }
.failure-panel[hidden] { display: none; }
.failure-panel span { color: var(--red); font: 800 11px ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .15em; }
.failure-panel strong { font-size: 14px; }
footer { display: grid; grid-template-columns: auto auto 1fr; gap: 20px; color: #69768a; font-size: 11px; padding-top: 10px; }
footer span:last-child { text-align: right; }

@media (max-width: 900px) {
  .hero { align-items: start; flex-direction: column; }
  .hero-status { width: 100%; }
  .official-loader { grid-template-columns: 1fr; }
  .challenge-panel { grid-template-columns: 1fr; }
  .attack-list { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .stage { min-height: 140px; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .scorecard-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 24px, 1180px); padding-top: 30px; }
  .metrics { grid-template-columns: 1fr; }
  .scorecard-heading { align-items: start; flex-direction: column; }
  .scorecard-grid { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; }
  footer span:last-child { text-align: left; }
}