:root {
  --canvas: #090909;
  --surface: #121212;
  --surface-raised: #181818;
  --ink: #fbfbfb;
  --muted: #9b9ba1;
  --subtle: #5a5a61;
  --hairline: rgba(255, 255, 255, 0.14);
  --blue: #4297ff;
  --urgent: #ff5c5f;
  --radius-panel: 20px;
  --radius-card: 17px;
  --radius-pill: 999px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--canvas);
  font-family: Inter, Geist, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-feature-settings: "cv01", "cv05", "cv09", "cv11", "ss03", "ss07";
  -webkit-font-smoothing: antialiased;
}

button, textarea { font: inherit; }

a { color: inherit; text-decoration: none; }

.shell { width: min(100% - 40px, 1200px); margin: 0 auto; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  margin-top: 18px;
  padding: 0 12px 0 26px;
  border: 1px solid var(--hairline);
  border-radius: 15px;
  background: rgba(18, 18, 18, 0.72);
}

.wordmark { font-size: 25px; font-weight: 650; letter-spacing: -1.3px; }

nav { display: flex; align-items: center; gap: 42px; }

nav > a:not(.button) { color: #d0d0d4; font-size: 14px; letter-spacing: -0.2px; }
nav > a:not(.button):hover, .api-link:hover { color: var(--blue); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 0;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: -0.2px;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover { transform: scale(0.98); }
.button:focus-visible, textarea:focus-visible, .text-button:focus-visible, a:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.button-primary { padding: 10px 17px; color: #080808; background: var(--ink); }
.nav-action { min-height: 38px; }

.hero { padding: 18px 0 14px; }

.hero h1 {
  max-width: 830px;
  margin: 0;
  font-size: clamp(54px, 6.6vw, 80px);
  font-weight: 620;
  letter-spacing: clamp(-6px, -0.052em, -3px);
  line-height: 0.83;
}

.hero p { max-width: 480px; margin: 10px 0 0; color: #b9b9bf; font-size: 16px; line-height: 1.35; letter-spacing: -0.3px; }

.classifier {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 370px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-panel);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.025), transparent 42%), var(--surface);
}

.ticket-form, .result-panel { padding: 22px 30px; }
.ticket-form { border-right: 1px solid var(--hairline); }
.field-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.field-heading label, .result-panel h2 { font-size: 16px; font-weight: 600; letter-spacing: -0.5px; }
.result-panel h2 { margin: 0 0 17px; }

.text-button { border: 1px solid #39393e; border-radius: var(--radius-pill); padding: 6px 17px; color: var(--ink); background: transparent; cursor: pointer; font-size: 14px; }
.text-button:hover { background: #242429; }

textarea {
  display: block;
  width: 100%;
  min-height: 170px;
  resize: vertical;
  padding: 18px;
  border: 1px solid #3c3c42;
  border-radius: 14px;
  color: #f1f1f3;
  background: #0e0e0f;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  line-height: 1.62;
  letter-spacing: -0.25px;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.04);
}

textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(66, 151, 255, 0.28), inset 0 1px rgba(255, 255, 255, 0.04); outline: 0; }
.field-meta { display: flex; justify-content: space-between; gap: 15px; margin: 6px 0 14px; color: var(--muted); font-size: 12px; letter-spacing: -0.2px; }
.submit-button { gap: 20px; min-width: 205px; padding: 11px 24px; }
.submit-button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.submit-button:disabled { cursor: wait; opacity: 0.72; }

.result-box { display: flex; min-height: 150px; flex-direction: column; justify-content: center; padding: 22px 24px; border: 1px solid #37373d; border-radius: 14px; background: #101011; }
.result-box[data-state="loading"] { border-color: rgba(66, 151, 255, 0.72); }
.result-box[data-state="error"] { border-color: rgba(255, 92, 95, 0.65); }
.result-status { margin: 0 0 9px; color: var(--muted); font-size: 14px; }
.result-main { margin: 0; font-size: clamp(34px, 4vw, 56px); font-weight: 620; letter-spacing: -2.4px; line-height: 0.96; }
.result-box[data-state="success"] .result-main { color: var(--ink); }
.result-detail { max-width: 350px; margin: 14px 0 0; color: #babac0; font-size: 15px; line-height: 1.35; letter-spacing: -0.25px; }

.probabilities { margin-top: 18px; }
.probabilities > p { margin: 0 0 11px; color: var(--muted); font-size: 13px; }
.probabilities dl { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 20px; margin: 0; }
.probabilities div { display: flex; justify-content: space-between; padding-top: 8px; border-top: 1px solid rgba(255, 255, 255, 0.1); font-size: 13px; }
.probabilities dt { color: #c4c4c9; text-transform: capitalize; }
.probabilities dd { margin: 0; color: var(--ink); font-variant-numeric: tabular-nums; }
.api-link { display: inline-block; margin-top: 20px; color: var(--blue); font-size: 14px; }
.api-link span { margin-left: 7px; }

.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 32px 0 92px; }
.evidence-card, .spotlight-card { min-height: 270px; padding: 28px; border: 1px solid var(--hairline); border-radius: var(--radius-card); background: var(--surface); }
.evidence-card h2, .spotlight-card h2 { margin: 0 0 34px; font-size: 22px; font-weight: 600; letter-spacing: -1px; line-height: 1.05; }
.evidence-card p { margin: 0; color: var(--muted); font-size: 14px; }
.evidence-card strong { display: block; margin: 8px 0 20px; font-size: 42px; font-weight: 580; letter-spacing: -2px; font-variant-numeric: tabular-nums; }
.evidence-note { padding-top: 13px; border-top: 1px solid rgba(255, 255, 255, 0.11); line-height: 1.35; }

.spotlight-card { position: relative; overflow: hidden; border-color: rgba(221, 110, 255, 0.3); background: radial-gradient(circle at 95% 82%, #e94c9b 0%, rgba(178, 58, 216, 0.6) 22%, rgba(68, 15, 100, 0.4) 48%, #16091b 80%); }
.spotlight-card::after { position: absolute; right: -58px; bottom: -95px; width: 230px; height: 230px; border-radius: 50%; background: #ff81bb; filter: blur(60px); opacity: 0.46; content: ""; }
.spotlight-card > * { position: relative; z-index: 1; }
.bolt { width: 31px; height: 31px; margin-bottom: 27px; fill: none; stroke: #ff99d4; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.spotlight-card h2 { margin-bottom: 12px; font-size: 28px; max-width: 210px; }
.spotlight-card p { max-width: 260px; margin: 0; color: #f1ddeb; font-size: 14px; line-height: 1.38; }
.spotlight-card ul { display: grid; gap: 8px; margin: 18px 0 0; padding: 0; color: #f8e8f5; font-size: 13px; list-style: none; }
.spotlight-card li::before { margin-right: 9px; color: #ff9ed8; content: "✓"; }

@media (max-width: 810px) {
  .shell { width: min(100% - 30px, 650px); }
  .site-header { min-height: 58px; margin-top: 12px; padding-left: 18px; }
  nav { gap: 19px; }
  nav > a:not(.button) { display: none; }
  .hero { padding: 57px 0 40px; }
  .hero h1 { letter-spacing: -0.07em; }
  .hero p { margin-top: 27px; font-size: 18px; }
  .classifier { grid-template-columns: 1fr; }
  .ticket-form { border-right: 0; border-bottom: 1px solid var(--hairline); }
  .ticket-form, .result-panel { padding: 26px 22px; }
  .evidence-grid { grid-template-columns: 1fr; padding-top: 18px; }
}

@media (max-width: 460px) {
  .shell { width: min(100% - 24px, 650px); }
  .hero h1 { font-size: 59px; letter-spacing: -4px; }
  .hero p { font-size: 17px; }
  textarea { min-height: 260px; }
  .field-meta { flex-direction: column; gap: 4px; }
  .submit-button { width: 100%; }
  .probabilities dl { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; } }