:root {
  --bg: #0e0e12;
  --card: #18181f;
  --ink: #f4f0ec;
  --muted: #9a948c;
  --red: #e50914;
  --red-dim: #9b0d14;
  --line: #2c2c34;
  --ok: #3dd68c;
  --warn: #f5c542;
  --err: #ff6b6b;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--sans);
  background: radial-gradient(1200px 500px at 10% -10%, #3a0a0d 0%, transparent 50%), var(--bg);
  color: var(--ink);
  line-height: 1.45;
}

.top {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 0.5rem;
}
.brand {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 0.75rem;
}
.logo {
  display: block;
  height: 112px;
  width: auto;
}
.lede { color: var(--muted); max-width: 46rem; margin: 0; }

.grid {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.25rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.15rem 1.2rem 1.3rem;
}
.card h1 {
  font-size: 1.05rem;
  margin: 0 0 0.35rem;
}
.hint { color: var(--muted); font-size: 0.9rem; margin: 0 0 1rem; }

.pin-board {
  background: #0a0a0e;
  border: 1px dashed var(--line);
  border-radius: 10px;
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: 0.18em;
  color: var(--ink);
  margin-bottom: 0.6rem;
}
.pin-board .muted { letter-spacing: 0; font-size: 1rem; color: var(--muted); font-family: var(--sans); }

.meta { min-height: 1.3rem; color: var(--muted); font-size: 0.88rem; margin: 0 0 0.8rem; }
.meta.ok { color: var(--ok); }
.meta.err { color: var(--err); }
.meta.warn { color: var(--warn); }

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}
input {
  font: inherit;
  color: var(--ink);
  background: #101016;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
}
input:focus {
  outline: 2px solid var(--red-dim);
  border-color: var(--red);
}
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
button {
  font: inherit;
  font-weight: 600;
  background: var(--red);
  color: white;
  border: 0;
  border-radius: 8px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.result {
  margin-top: 1rem;
  padding: 0.8rem;
  background: #101016;
  border-radius: 8px;
  font-size: 0.9rem;
  word-break: break-all;
}
.result a { color: #8ab4ff; }

footer {
  max-width: 960px;
  margin: 0 auto 1.5rem;
  padding: 0 1.25rem;
  color: var(--muted);
  font-size: 0.82rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}