/* Agentic Debt demo — white theme with drifting dust */

:root {
  --bg: #fafaf7;
  --bg-card: #ffffff;
  --fg: #1a1a1a;
  --fg-muted: #6b6b6b;
  --fg-subtle: #9a9a9a;
  --accent: #c9933a;       /* warm amber/dust */
  --accent-soft: #f4e4bc;  /* lighter dust tone */
  --border: #e8e4d8;
  --error: #d04848;
  --shadow: 0 4px 24px rgba(60, 50, 30, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

/* ---- Dust layer ---- */
.dust {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.dust span {
  position: absolute;
  display: block;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  animation: drift linear infinite;
}
@keyframes drift {
  0%   { opacity: 0; transform: translate(0, 0); }
  10%  { opacity: var(--o); }
  50%  { transform: translate(var(--dx), -50vh); opacity: var(--o); }
  90%  { opacity: var(--o); }
  100% { opacity: 0; transform: translate(calc(var(--dx) * 2), -110vh); }
}

main {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px 48px;
}

header {
  text-align: center;
  margin-bottom: 56px;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -0.025em;
  color: var(--fg);
}

.tagline {
  color: var(--fg-muted);
  margin: 0 0 24px;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.counter {
  color: var(--fg-subtle);
  font-size: 0.95rem;
  margin: 0;
  font-variant-numeric: tabular-nums;
}
.counter strong {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
}

/* ---- Form ---- */
.form-section { margin-bottom: 32px; }

label {
  display: block;
  margin-bottom: 12px;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

textarea {
  width: 100%;
  min-height: 140px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--fg);
  font-family: inherit;
  font-size: 1.05rem;
  line-height: 1.5;
  resize: vertical;
  box-shadow: var(--shadow);
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
}

.char-count {
  color: var(--fg-subtle);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background-color 0.15s, transform 0.05s;
}
button:hover { background: #b07f2c; }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- Result ---- */
.result-section { margin-top: 32px; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.card.malicious {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--bg-card) 60%);
}
.card.error { border-color: var(--error); }

.card-eyebrow {
  color: var(--fg-subtle);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
  font-weight: 600;
}
.card-title {
  font-size: 1.65rem;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--accent);
  letter-spacing: -0.01em;
}
.card-layer {
  color: var(--fg-subtle);
  font-size: 0.85rem;
  margin: 0 0 18px;
  font-variant-numeric: tabular-nums;
}
.card-body {
  font-size: 1.05rem;
  margin: 0;
  color: var(--fg);
}
.card-novelty {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  font-size: 0.95rem;
  color: var(--fg);
}
.card-confidence {
  margin-top: 18px;
  font-size: 0.8rem;
  color: var(--fg-subtle);
  font-variant-numeric: tabular-nums;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---- Footer ---- */
footer {
  margin-top: 80px;
  text-align: center;
  color: var(--fg-subtle);
  font-size: 0.85rem;
}
footer a {
  color: var(--fg-muted);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
  margin: 0 10px;
  transition: color 0.15s;
}
footer a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ---- Mobile ---- */
@media (max-width: 600px) {
  main { padding: 48px 18px; }
  h1 { font-size: 2.2rem; }
  .tagline { font-size: 1rem; }
  .row { flex-direction: column-reverse; gap: 12px; align-items: stretch; }
  button { width: 100%; }
  .card { padding: 22px; }
}