:root {
  --bg: #1c1916;
  --card: #26221e;
  --ink: #f4efe8;
  --muted: #b7aea4;
  --line: #3a342e;
  --accent: #e07a3d;
  --accent-ink: #1c1916;
  --good: #d7e3c8;
  --warn: #f0d7b0;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(circle at top, #2c261f 0, transparent 42%),
    var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
  line-height: 1.45;
}

body {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

.top {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.mark {
  flex: 0 0 auto;
  width: 3rem;
  height: 3rem;
  margin: 0;
  border-radius: 0.7rem;
  background: #141210;
  border: 2px solid var(--accent);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: -0.04em;
}

h1 {
  margin: 0 0 0.35rem;
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

.lede, footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

form, .result {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 0.4rem 1rem 1rem;
}

fieldset {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
  padding: 0.9rem 0 0.2rem;
}

legend {
  padding: 0;
  font-weight: 700;
}

.req, .opt {
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-left: 0.35rem;
}

.req { color: var(--accent); }
.opt { color: var(--muted); }

.hint {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0.35rem 0 0.7rem;
}

.choice, .grid {
  display: grid;
  gap: 0.6rem;
}

.chip {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  background: #1a1714;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  padding: 0.7rem 0.75rem;
  min-height: 2.8rem;
}

.chip:has(input:checked) {
  border-color: var(--accent);
  background: #32281f;
}

label span {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.9rem;
}

input[type="number"] {
  width: 100%;
  min-height: 2.9rem;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  background: #141210;
  color: var(--ink);
  font: inherit;
  font-size: 1.05rem;
  padding: 0.45rem 0.7rem;
}

input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  width: 100%;
  margin-top: 0.8rem;
  min-height: 3.1rem;
  border: 0;
  border-radius: 0.8rem;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 750;
  font-size: 1.05rem;
}

button:disabled {
  background: #4a433c;
  color: #9a9188;
}

.gate { margin-top: 0.55rem; }

.hidden { display: none; }

.result {
  margin-top: 1rem;
  padding-top: 1rem;
}

.result h2 {
  margin: 0 0 0.4rem;
  font-size: 1.25rem;
}

.result p {
  margin: 0.55rem 0;
}

.result .buy {
  background: #1a1714;
  border-radius: 0.75rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
}

.result .buy strong {
  display: block;
  font-size: 1.8rem;
  letter-spacing: -0.03em;
  color: var(--good);
}

footer {
  margin-top: 1rem;
}

@media (min-width: 36rem) {
  .grid.two, .grid {
    grid-template-columns: 1fr 1fr;
  }
  #direct-fields.grid {
    grid-template-columns: 1fr;
  }
}

.faq {
  margin-top: 1.25rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 0.2rem 1rem 1rem;
}

.faq h2 {
  margin: 0.8rem 0 0.2rem;
  font-size: 1.25rem;
}

.faq h3 {
  margin: 1rem 0 0.25rem;
  font-size: 1.05rem;
}

.faq p {
  margin: 0;
  color: var(--muted);
}