:root {
  --bg: #070b12;
  --panel: #0f172a;
  --border: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-dim: #0ea5e9;
  --danger: #f87171;
  --ok: #4ade80;
  --warn: #fbbf24;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 50% -10%, #0c1929 0%, var(--bg) 55%);
  color: var(--text);
  font-family: var(--font);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  width: min(720px, 92vw);
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.wrap-wide {
  width: min(900px, 94vw);
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.brand {
  text-align: center;
  margin-bottom: 1.75rem;
}
.brand img {
  width: 96px;
  height: 96px;
  display: block;
  margin: 0 auto 0.75rem;
  filter: drop-shadow(0 0 24px rgba(56, 189, 248, 0.25));
}
.brand h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}
.brand .tag {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.panel {
  background: color-mix(in srgb, var(--panel) 92%, black);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}

label.field-label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

textarea.intent {
  width: 100%;
  min-height: 11rem;
  resize: vertical;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #020617;
  color: var(--text);
  padding: 1rem 1.1rem;
  font-size: 1.05rem;
  line-height: 1.55;
  font-family: var(--font);
}
textarea.intent:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  border-color: var(--accent-dim);
}
textarea.intent::placeholder { color: #64748b; }

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.9rem;
}
.row > * { flex: 1 1 140px; }

select, input[type="text"] {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #020617;
  color: var(--text);
  padding: 0.55rem 0.7rem;
  font-size: 0.95rem;
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 1rem;
}

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 11px;
  border: 1px solid transparent;
  padding: 0.85rem 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  width: 100%;
}
button.primary, .btn.primary {
  background: linear-gradient(180deg, #38bdf8 0%, #0284c7 100%);
  color: #041018;
}
button.primary:hover, .btn.primary:hover { filter: brightness(1.06); text-decoration: none; }
button.secondary, .btn.secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
button.secondary:hover, .btn.secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}
button:disabled { opacity: 0.55; cursor: not-allowed; }

.hint {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

/* results */
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--muted);
}
.badge.ok { border-color: #166534; color: var(--ok); }
.badge.warn { border-color: #854d0e; color: var(--warn); }
.badge.danger { border-color: #7f1d1d; color: var(--danger); }

table.seeds {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0.75rem 0 1rem;
}
table.seeds th, table.seeds td {
  text-align: left;
  padding: 0.45rem 0.4rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.seeds th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; }
code, .mono { font-family: var(--mono); font-size: 0.88em; }

.alert {
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  margin: 0.6rem 0;
  font-size: 0.92rem;
}
.alert.warn { background: #42200655; border: 1px solid #854d0e; color: #fde68a; }
.alert.danger { background: #450a0a55; border: 1px solid #7f1d1d; color: #fecaca; }
.alert.ok { background: #052e1655; border: 1px solid #166534; color: #bbf7d0; }

.collectors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.5rem 0 1rem;
}
.collectors span {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  background: #020617;
  border: 1px solid var(--border);
  color: var(--muted);
}

/* guide */
.guide h2 {
  margin-top: 2rem;
  font-size: 1.2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.35rem;
}
.guide h3 { margin-top: 1.25rem; font-size: 1.02rem; color: #cbd5e1; }
.guide p, .guide li { color: #cbd5e1; line-height: 1.55; }
.guide pre {
  background: #020617;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: #bae6fd;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}
.topbar .left { display: flex; align-items: center; gap: 0.65rem; }
.topbar img { width: 40px; height: 40px; }

.footer {
  margin-top: 2rem;
  text-align: center;
  color: #64748b;
  font-size: 0.8rem;
  padding-bottom: 2rem;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 650;
  letter-spacing: 0.04em;
  text-decoration: none;
}
.nav-brand:hover { text-decoration: none; color: var(--accent); }
.nav-brand img { display: block; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}
.nav-links a:hover { color: var(--accent); text-decoration: none; }
.nav-links a.muted { opacity: 0.7; font-size: 0.8rem; }
.mono { font-family: var(--mono); }