:root {
  color-scheme: dark;
  --bg: #151913;
  --panel: #20251c;
  --text: #f4f6ed;
  --muted: #c2ccba;
  --line: #596752;
  --accent: #ccf66b;
  --error: #ffb6ad;
  font: 16px/1.55 system-ui, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--text); background: var(--bg); }
main { width: min(100% - 2rem, 40rem); margin: clamp(1.5rem, 6vh, 5rem) auto; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.06; margin: .4rem 0 1rem; }
a { color: var(--accent); }
.back { display: inline-flex; min-height: 44px; align-items: center; }
.product { margin: 1.2rem 0 0; font-weight: 700; color: var(--accent); }
.intro, .hint { color: var(--muted); }
.hint { margin: .6rem 0 .15rem; }
form { padding: clamp(1rem, 4vw, 1.75rem); border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); }
form label:not(.consent) { display: block; margin: .6rem 0 .25rem; font-weight: 600; }
input:not([type=checkbox]), textarea {
  width: 100%; min-width: 0; min-height: 44px; padding: .65rem .75rem; border: 1px solid var(--line);
  border-radius: .5rem; background: var(--bg); color: var(--text); font: inherit;
}
textarea { resize: vertical; }
.contacts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.consent { display: flex; align-items: center; gap: .6rem; min-height: 44px; margin: .85rem 0; }
input[type=checkbox] { flex: 0 0 1.15rem; width: 1.15rem; height: 1.15rem; accent-color: var(--accent); }
button {
  min-height: 44px; width: 100%; border: 0; border-radius: .5rem; padding: .65rem 1rem;
  background: var(--accent); color: #18210e; font: inherit; font-weight: 750; cursor: pointer;
}
button:disabled { opacity: .65; cursor: default; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
[aria-invalid=true] { border-color: var(--error) !important; }
.status { margin: .8rem 0 0; }
.status:empty { margin: 0; }
.status[data-kind=error] { color: var(--error); }
.status[data-kind=success] { color: var(--accent); }
.trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

@media (max-width: 34rem) {
  .contacts { grid-template-columns: 1fr; gap: 0; }
}