:root {
  color-scheme: dark;
  --bg: #0a0d0d;
  --panel: #121717;
  --panel-2: #171e1d;
  --line: #283130;
  --text: #f4f7f6;
  --muted: #98a5a2;
  --accent: #b8ff5a;
  --accent-dark: #10170a;
  --danger: #ff8d83;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% -20%, rgba(184, 255, 90, 0.12), transparent 36rem),
    var(--bg);
  color: var(--text);
}

button, input, select { font: inherit; }

.shell {
  width: min(100% - 32px, 780px);
  margin: 0 auto;
  padding: 56px 0 40px;
}

.hero { margin-bottom: 30px; }
.eyebrow, .step {
  margin: 0 0 10px;
  color: var(--accent);
  font: 700 0.72rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.14em;
}

h1, h2, p { overflow-wrap: anywhere; }
h1 {
  margin: 0;
  font-size: clamp(2.45rem, 9vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: -0.065em;
}

.lede {
  max-width: 570px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.tool-card, .results, .disclosure {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(18, 23, 23, 0.94);
}

.tool-card { padding: 22px; }
.card-heading, .results-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

h2 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.status-pill {
  flex: none;
  padding: 7px 10px;
  border: 1px solid #39512a;
  border-radius: 999px;
  color: var(--accent);
  background: rgba(184, 255, 90, 0.06);
  font-size: 0.72rem;
}

form { margin-top: 24px; }
.field + .field { margin-top: 16px; }
label {
  display: block;
  margin-bottom: 8px;
  color: #d7dddb;
  font-size: 0.88rem;
  font-weight: 650;
}
.optional { color: #7f8b88; font-weight: 500; }

input, select {
  width: 100%;
  min-height: 52px;
  padding: 0 15px;
  border: 1px solid #35403e;
  border-radius: 11px;
  outline: none;
  background: #0d1211;
  color: var(--text);
  transition: border-color 150ms, box-shadow 150ms;
}
input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(184, 255, 90, 0.12);
}
input::placeholder { color: #606b69; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 22px, calc(100% - 14px) 22px; background-size: 6px 6px, 6px 6px; background-repeat: no-repeat; }
.hint { margin: 6px 0 0; color: #77827f; font-size: 0.76rem; }

button {
  min-height: 48px;
  border: 0;
  border-radius: 11px;
  cursor: pointer;
}
button:focus-visible { outline: 3px solid rgba(184, 255, 90, 0.45); outline-offset: 2px; }
button:disabled { cursor: wait; opacity: 0.65; }

#submit-button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-top: 20px;
  padding: 0 17px;
  background: var(--accent);
  color: var(--accent-dark);
  font-weight: 800;
}
#submit-button:hover:not(:disabled) { background: #c7ff7e; }

.results { margin-top: 18px; padding: 22px; }
.results[hidden] { display: none; }
.summary { margin: 7px 0 0; color: var(--muted); font-size: 0.85rem; }
.secondary-button {
  flex: none;
  padding: 0 14px;
  border: 1px solid #3a4543;
  background: transparent;
  color: var(--text);
  font-size: 0.82rem;
}
.secondary-button:hover { border-color: var(--accent); }

.results-list {
  list-style: none;
  counter-reset: page;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.result-item {
  counter-increment: page;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}
.result-item::before {
  content: counter(page, decimal-leading-zero);
  color: #66716f;
  font: 700 0.78rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.result-link {
  display: block;
  color: var(--text);
  font-weight: 680;
  line-height: 1.45;
  text-decoration: none;
  word-break: break-word;
}
.result-link:hover { color: var(--accent); }
.path { color: #c9d0ce; }
.metric-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.78rem;
}
.metric-row strong { color: var(--accent); font-variant-numeric: tabular-nums; }
.topic-match { margin-top: 8px; color: #9ca6a3; font-size: 0.76rem; line-height: 1.45; }
.topic-match strong { color: #dce2e0; }
.keyword-panel { margin-top: 13px; }
.keyword-button {
  min-height: 44px;
  padding: 0 13px;
  border: 1px solid #3a4543;
  background: #0d1211;
  color: #dce2e0;
  font-size: 0.78rem;
  font-weight: 700;
}
.keyword-button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.keyword-list { margin: 12px 0 0; padding: 0; list-style: none; }
.keyword-list li {
  padding: 9px 0;
  border-top: 1px solid #222a29;
}
.keyword-term { display: block; color: #e6ebe9; font-size: 0.82rem; line-height: 1.4; }
.keyword-meta { display: block; margin-top: 3px; color: #7f8b88; font-size: 0.72rem; }
.keyword-note { margin: 9px 0 0; color: #7f8b88; font-size: 0.72rem; }
.message { min-height: 24px; margin: 14px 2px 0; color: var(--muted); font-size: 0.9rem; }
.message.error { color: var(--danger); }

.disclosure {
  margin-top: 18px;
  padding: 18px 20px;
  background: transparent;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.55;
}
.disclosure strong { color: #dce2e0; }
.disclosure p { margin: 6px 0 0; }

@media (max-width: 560px) {
  .shell { width: min(100% - 28px, 780px); padding-top: 34px; }
  .hero { margin-bottom: 24px; }
  .tool-card, .results { padding: 18px; border-radius: 15px; }
  .card-heading, .results-header { display: block; }
  .status-pill { display: inline-block; margin-top: 12px; }
  .secondary-button { width: 100%; margin-top: 15px; }
  .result-item { grid-template-columns: 30px minmax(0, 1fr); gap: 8px; }
  .keyword-button { width: 100%; }
}