:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #1d2327;
  --muted: #5b646b;
  --line: #e4e1da;
  --accent: #0f5f5c;
  --accent-ink: #ffffff;
  --accent-soft: #e6f0ef;
  --warn-soft: #fbf3e4;
  --radius: 14px;
  --max: 1040px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

img { max-width: 100%; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 250, 247, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 14px;
}

.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav .lang { color: var(--accent); font-weight: 600; }

@media (max-width: 720px) {
  .nav a:not(.lang) { display: none; }
}

/* Hero */
.hero { padding: 72px 0 56px; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.35;
  margin: 0 0 18px;
  letter-spacing: 0.01em;
}

.hero p.lead {
  font-size: clamp(16px, 2.2vw, 18px);
  color: var(--muted);
  max-width: 680px;
  margin: 0 0 28px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 999px;
}

.btn:hover { opacity: 0.9; }

.btn.ghost {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  margin-left: 8px;
}

@media (max-width: 480px) {
  .btn { display: block; text-align: center; }
  .btn.ghost { margin: 10px 0 0; }
}

/* Sections */
section { padding: 56px 0; border-top: 1px solid var(--line); }

h2 {
  font-size: clamp(22px, 3.4vw, 28px);
  margin: 0 0 8px;
}

.section-lead { color: var(--muted); margin: 0 0 28px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
}

.card h3 { margin: 0 0 6px; font-size: 20px; line-height: 1.5; }

.price {
  font-size: 26px;
  font-weight: 700;
  margin: 6px 0 2px;
}

.price small { font-size: 13px; font-weight: 400; color: var(--muted); }

.meta { font-size: 14px; color: var(--muted); margin: 0 0 14px; }

.card ul { padding-left: 1.2em; margin: 8px 0 14px; }
.card li { margin-bottom: 4px; }

.note {
  font-size: 13px;
  color: var(--muted);
  background: var(--warn-soft);
  border-radius: 10px;
  padding: 10px 14px;
  margin-top: auto;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  background: var(--line);
  color: var(--muted);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
  align-self: flex-start;
}

/* Steps */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px 16px 64px;
  position: relative;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 16px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  display: grid;
  place-items: center;
  font-size: 14px;
}

.steps strong { display: block; }

/* FAQ */
details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 10px;
}

summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; color: var(--muted); }

/* Tables */
.table-wrap { overflow-x: auto; }

table.info {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

table.info th,
table.info td {
  text-align: left;
  vertical-align: top;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

table.info th {
  width: 32%;
  background: #f5f3ee;
  font-weight: 600;
}

table.info tr:last-child th,
table.info tr:last-child td { border-bottom: 0; }

@media (max-width: 600px) {
  table.info th, table.info td { display: block; width: 100%; }
  table.info th { border-bottom: 0; padding-bottom: 4px; }
}

/* Legal pages */
.doc { padding: 48px 0 64px; }
.doc h1 { font-size: clamp(24px, 4vw, 32px); margin: 0 0 6px; }
.doc .updated { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
.doc h2 { font-size: 20px; margin: 32px 0 8px; }
.doc h3 { font-size: 17px; margin: 22px 0 6px; }
.doc ol, .doc ul { padding-left: 1.4em; }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 40px;
  font-size: 14px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 12px;
}

.footer-links a { color: var(--muted); }

/* Contact form */
.narrow { max-width: 640px; }

.form { display: grid; gap: 18px; margin-top: 8px; }

.field { display: grid; gap: 6px; }

.field span { font-weight: 600; font-size: 15px; }

.field em,
.field small {
  font-style: normal;
  font-size: 12px;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: 999px;
  margin-left: 6px;
  vertical-align: 1px;
}

.field em { background: var(--accent); color: var(--accent-ink); }
.field small { background: var(--line); color: var(--muted); }

.field input,
.field select,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid #cfcac0;
  border-radius: 10px;
  padding: 12px 14px;
}

.field textarea { resize: vertical; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.check input { width: 18px; height: 18px; margin-top: 5px; accent-color: var(--accent); }

.form .btn { border: 0; cursor: pointer; font-size: 16px; justify-self: start; }

.form-note { font-size: 13px; color: var(--muted); margin: 0; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

@media (max-width: 480px) {
  .form .btn { justify-self: stretch; }
}

/* Contact box */
.contact-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin: 8px 0 32px;
}

.contact-label { margin: 0; font-size: 14px; color: var(--muted); }

.contact-mail {
  margin: 4px 0 18px;
  font-size: clamp(20px, 5vw, 26px);
  font-weight: 700;
  word-break: break-all;
  user-select: all;
}

.contact-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.contact-actions .btn.ghost { margin-left: 0; cursor: pointer; font: inherit; font-weight: 600; background: var(--surface); }
.contact-box .form-note { margin-top: 12px; }