:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f8f2e7;
  --card: #fffaf0;
  --ink: #21180b;
  --muted: #6d5c43;
  --gold: #b47b16;
  --gold-dark: #7a4c00;
  --line: #ead8b8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #fff7da, var(--bg));
  color: var(--ink);
}
.app {
  width: min(980px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 48px 0;
}
.hero { margin-bottom: 24px; }
.eyebrow {
  color: var(--gold-dark);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
h1 {
  margin: 0;
  font-size: clamp(2.2rem, 7vw, 4.8rem);
  line-height: 0.95;
}
h2 {
  margin: 0;
  font-size: 1.15rem;
}
.lede {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.1rem;
}
.card {
  background: color-mix(in srgb, var(--card) 92%, white);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 18px 60px rgb(92 61 10 / 12%);
  padding: 22px;
  margin: 18px 0;
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.presets-card {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 18px;
  align-items: start;
}
.preset-buttons {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}
input, select, button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  font: inherit;
  background: white;
  color: var(--ink);
}
button {
  border-color: var(--gold);
  background: linear-gradient(180deg, #dca43f, #ad7210);
  color: white;
  font-weight: 800;
  cursor: pointer;
}
button:disabled { opacity: 0.7; cursor: wait; }
button.secondary {
  color: var(--gold-dark);
  border-color: var(--line);
  background: #fff8e8;
}
.preset-button {
  display: grid;
  gap: 4px;
  text-align: left;
  min-height: 76px;
}
.preset-button span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}
.inline { display: grid; grid-template-columns: 1fr 96px; gap: 8px; }
.results {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.results div {
  border: 1px dashed var(--line);
  border-radius: 18px;
  padding: 18px;
}
.results span {
  display: block;
  color: var(--muted);
  font-weight: 800;
  margin-bottom: 10px;
}
.results strong {
  font-size: clamp(1.35rem, 4vw, 2.2rem);
}
.highlight {
  border: 2px solid var(--gold) !important;
  background: #fff1cc;
}
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.section-heading button {
  width: auto;
  min-width: 92px;
}
.breakdown {
  margin: 0;
  padding-left: 1.4rem;
  display: grid;
  gap: 10px;
  color: var(--ink);
}
.breakdown li::marker {
  color: var(--gold-dark);
  font-weight: 900;
}
.small { font-size: 0.95rem; }
.muted { color: var(--muted); }
@media (max-width: 900px) {
  .presets-card { grid-template-columns: 1fr; }
  .preset-buttons { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .grid, .results { grid-template-columns: 1fr; }
  .app { padding: 28px 0; }
}
@media (max-width: 520px) {
  .preset-buttons { grid-template-columns: 1fr; }
  .inline { grid-template-columns: 1fr; }
}