:root {
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  color: #10271f;
  background: #f6f7f2;
  font-size: 16px;
  line-height: 1.65;
  --green: #087a48;
  --green-dark: #0c251c;
  --green-soft: #e9f5ee;
  --yellow: #ffdb00;
  --cream: #fffdf3;
  --line: #d8e1da;
}

* { box-sizing: border-box; }
body { margin: 0; background: linear-gradient(180deg, #fff 0, #f7f8f4 360px); }
button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

.site-header {
  min-height: 82px;
  padding: 14px max(18px, calc((100vw - 1160px) / 2));
  background: #fff;
  border-top: 7px solid var(--yellow);
  border-bottom: 2px solid var(--green-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; min-width: 0; }
.brand img { display: block; width: min(360px, 55vw); height: auto; }
.header-label {
  flex: 0 0 auto;
  padding: 9px 15px;
  border: 2px solid var(--green);
  border-radius: 999px;
  color: #fff;
  background: var(--green);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}
.header-label:hover { background: #06683d; }

main { max-width: 1160px; margin: auto; padding: 30px 22px 52px; }
.hero {
  margin-bottom: 24px;
  padding: clamp(18px, 3vw, 30px) 4px 22px;
  border-bottom: 1px solid #ccd9d1;
  color: var(--green-dark);
  background: transparent;
}
.hero-kicker { margin: 0 0 3px !important; color: var(--green) !important; font-size: 14px; font-weight: 800; }
h1 { margin: 5px 0 8px; font-size: clamp(30px, 5vw, 52px); line-height: 1.25; letter-spacing: .02em; }
.hero p { margin: 0; color: #53675e; }
.benefits { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 23px; }
.benefits span {
  padding: 7px 12px;
  border: 1px solid #c7d8ce;
  border-radius: 999px;
  background: #fff;
  color: #285343;
  font-size: 13px;
  font-weight: 700;
}
.benefits span::before { content: "✓"; margin-right: 7px; color: var(--yellow); font-weight: 900; }

.layout { display: grid; grid-template-columns: minmax(0, 1.28fr) minmax(330px, .82fr); gap: 24px; align-items: start; }
.panel {
  margin: 0 0 16px;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 8px 28px rgba(16,39,31,.05);
}
.panel h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  font-size: 20px;
}
.panel h2 em {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--green-dark);
  font-size: 13px;
  font-style: normal;
  font-weight: 900;
}
label { font-size: 14px; font-weight: 700; }
.dates { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
input[type="date"], select {
  display: block;
  width: 100%;
  min-width: 0;
  margin-top: 7px;
  padding: 13px 12px;
  border: 2px solid #c8d4cd;
  border-radius: 11px;
  background: #fff;
  color: var(--green-dark);
  font-size: 16px;
}
.quick { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.quick button {
  padding: 8px 14px;
  border: 1px solid #b8c9c0;
  border-radius: 999px;
  background: var(--cream);
  color: #21483a;
  font-size: 14px;
  font-weight: 700;
}
.quick button:hover { border-color: var(--green); background: var(--green-soft); }
.note, .fine { color: #60736a; font-size: 13px; line-height: 1.8; }
.note { margin: 12px 0 0; }
#error { margin: 8px 0 0; color: #a43122; font-size: 14px; }

.select-guide { margin: -10px 0 14px; color: #60736a; font-size: 13px; }
.cars { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.choice {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
  padding: 0 0 14px;
  border: 2px solid #d7dfda;
  border-radius: 14px;
  background: #fff;
  cursor: pointer;
  transition: border-color .16s, background .16s, transform .16s;
}
.choice:hover { transform: translateY(-1px); border-color: #9bb8a8; }
.choice:has(input:checked) { border-color: var(--green); background: var(--green-soft); box-shadow: inset 0 0 0 1px var(--green); }
.choice input { position: absolute; top: 11px; right: 11px; z-index: 2; width: 21px; height: 21px; margin: 0; accent-color: var(--green); }
.choice img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-bottom: 1px solid #e2e7e3; }
.choice span { display: flex; flex: 1; flex-direction: column; min-width: 0; padding: 13px 13px 0; }
.choice b { display: block; padding-right: 24px; color: var(--green-dark); font-size: 15px; }
.choice small { display: block; margin-top: 5px; color: #64776e; font-size: 12px; font-weight: 400; overflow-wrap: anywhere; }
.choice .price { margin-top: auto; padding-top: 6px; color: var(--green); font-weight: 800; }
.image-note { margin: 14px 0 0; color: #718078; font-size: 11px; }
.cover-caution { margin: 8px 0 0; padding: 10px 12px; border-radius: 8px; background: #fff9d9; color: #685b19; font-size: 12px; line-height: 1.7; }
.field { display: block; margin-top: 17px; }

aside { position: sticky; top: 20px; }
.receipt {
  overflow: hidden;
  position: relative;
  padding: 28px;
  border: 2px solid var(--green-dark);
  border-radius: 22px;
  background: #fff;
  box-shadow: 10px 10px 0 var(--yellow);
}
.receipt::before { content: ""; position: absolute; inset: 0 0 auto; height: 9px; background: var(--green); }
.receipt-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 4px; font-weight: 800; }
.pill { padding: 4px 10px; border-radius: 999px; background: var(--yellow); color: var(--green-dark); font-size: 12px; }
#period { margin: 20px 0 4px; color: #64776e; font-size: 13px; }
.receipt h2 { margin: 3px 0 6px; font-size: 21px; }
.total { color: var(--green); font-size: clamp(34px, 5vw, 48px); font-weight: 900; line-height: 1.35; letter-spacing: -.02em; }
#status { margin: 0; color: #64776e; font-size: 13px; }
dl { margin: 23px 0 0; padding-top: 11px; border-top: 2px dashed #cdd9d2; }
dl > div { display: flex; justify-content: space-between; gap: 14px; margin: 12px 0; font-size: 14px; }
dd { margin: 0; font-weight: 800; text-align: right; }
#copy, .contact {
  display: block;
  width: 100%;
  padding: 14px;
  border-radius: 11px;
  font-weight: 800;
  text-align: center;
}
#copy { margin-top: 17px; border: 0; color: #fff; background: var(--green); }
#copy:hover { background: #06683d; }
#copy:disabled { background: #8a9e94; cursor: default; }
.next-guide{display:grid;gap:4px;margin:18px 0 0;padding:13px 14px;border-radius:11px;background:#fff9d9;color:#5e541e;font-size:12px}.next-guide b{color:var(--green-dark);font-size:13px}.next-guide span{display:block}
.contact { margin: 13px 0; border: 2px solid var(--green-dark); color: var(--green-dark); text-decoration: none; background: var(--yellow); box-shadow: 3px 3px 0 var(--green-dark); }
.contact:hover { color: #fff; background: var(--green); }
#copied { color: var(--green); font-size: 13px; font-weight: 700; }

.review {
  margin-top: 24px;
  padding: 22px 24px;
  border-left: 7px solid var(--yellow);
  border-radius: 0 14px 14px 0;
  background: #fff;
  color: #60736a;
  font-size: 13px;
}
.review b { color: var(--green-dark); font-size: 15px; }
.review p { max-width: 96ch; }
footer { padding: 27px 20px; background: var(--green-dark); color: #d9e6df; text-align: center; font-size: 12px; }

@media (max-width: 800px) {
  main { padding: 22px 15px 42px; }
  .site-header { min-height: 70px; padding: 10px 14px; }
  .brand img { width: min(280px, 60vw); }
  .header-label { padding: 7px 11px; font-size: 11px; }
  .hero { margin-bottom: 20px; padding: 22px 2px 20px; }
  .layout { grid-template-columns: 1fr; gap: 4px; }
  aside { position: static; margin-bottom: 18px; }
  .panel, .receipt { padding: 20px; }
}

@media (max-width: 520px) {
  .site-header { align-items: center; }
  .brand img { width: min(235px, 64vw); }
  .header-label { max-width: 105px; line-height: 1.35; text-align: center; }
  .benefits { display: grid; gap: 7px; }
  .benefits span { width: fit-content; }
  .cars { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .dates { gap: 9px; }
  .choice { padding-bottom: 11px; border-radius: 11px; }
  .choice input { top: 7px; right: 7px; width: 18px; height: 18px; }
  .choice span { padding: 10px 9px 0; }
  .choice b { padding-right: 0; font-size: 13px; line-height: 1.45; }
  .choice small { margin-top: 4px; font-size: 10.5px; line-height: 1.5; }
  .choice .price { padding-top: 5px; }
}

@media (max-width: 370px) {
  .dates { grid-template-columns: 1fr; }
  .header-label { display: none; }
  .brand img { width: 270px; max-width: 86vw; }
}