:root {
  --bg: #0f1117;
  --fg: #f1f5f9;
  --card-bg: #1e2536;
  --accent: #e2e8f0;
  --muted: #94a3b8;
  --border: #334155;
  --radius-lg: 1rem;
  --radius-sm: .5rem;
  --pad-lg: 1.25rem;
  --pad-md: .75rem;
  --pad-sm: .5rem;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-main);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

.header {
  text-align: center;
  padding: 1.25rem 1rem .5rem;
}
.brand {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0;
  color: var(--fg);
}
.tagline {
  margin: .5rem auto 0;
  max-width: 30rem;
  font-size: .8rem;
  color: var(--muted);
  line-height: 1.4;
}

.layout {
  max-width: 480px;
  width: 100%;
  margin: 0 auto 4rem;
  padding: 0 1rem;
  display: grid;
  gap: 1rem;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--pad-lg);
}

.section-title {
  margin: 0 0 .5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.small {
  font-size: .8rem;
  color: var(--muted);
  margin: 0 0 .5rem;
  line-height: 1.4;
}

.batch-box {
  background: rgba(15,15,20,.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--pad-md);
  font-size: .8rem;
  line-height: 1.4;
}

.batch-line {
  display: flex;
  gap: .5rem;
  margin-bottom: .4rem;
  flex-wrap: wrap;
}
.batch-line:last-child { margin-bottom: 0; }
.batch-line .label {
  font-weight: 500;
  color: var(--fg);
}

.order-form {
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: .5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--pad-md);
  background: rgba(0,0,0,.15);
}

.field-label {
  font-size: .8rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: .25rem;
}

.input {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background-color: #0f172a;
  color: var(--fg);
  font-size: .9rem;
  padding: .6rem .6rem;
}

.radio-row,
.check-row {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .6rem .6rem;
  background-color: #0f172a;
}
.radio-row input,
.check-row input {
  margin-top: .3rem;
}

.radio-info,
.check-info {
  font-size: .8rem;
  line-height: 1.4;
  color: var(--fg);
}
.radio-name,
.check-name {
  font-weight: 500;
  color: var(--fg);
}
.radio-desc,
.check-desc {
  color: var(--accent);
  font-size: .8rem;
}
.radio-notes,
.check-notes {
  color: var(--muted);
  font-size: .7rem;
}

.submit-btn {
  width: 100%;
  background-color: var(--accent);
  color: #000;
  border: 0;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  padding: .8rem;
  cursor: pointer;
}
.submit-btn:active {
  opacity: .8;
}

.fine {
  font-size: .7rem;
  color: var(--muted);
  margin-top: .5rem;
  line-height: 1.4;
}

.footer {
  text-align: center;
  padding-bottom: 4rem;
}
.tiny {
  font-size: .7rem;
  line-height: 1.4;
  color: var(--muted);
}