:root {
  --bg: #f7f8f4;
  --surface: #ffffff;
  --surface-alt: #eef1e8;
  --ink: #18201c;
  --muted: #5b6660;
  --primary: #1f7a58;
  --primary-dark: #10543b;
  --accent: #e6ff58;
  --line: #d8dfd6;
  --shadow: 0 18px 40px rgba(19, 44, 32, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Noto Sans JP", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% -10%, #dff4e8, transparent 45%), var(--bg);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(247, 248, 244, 0.9);
  border-bottom: 1px solid rgba(24, 32, 28, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 20px;
}

.logo {
  font-weight: 800;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  gap: 20px;
  font-weight: 600;
  color: var(--muted);
}

.nav a:hover {
  color: var(--ink);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 10px;
  padding: 8px 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(140deg, var(--primary), var(--primary-dark));
  box-shadow: 0 8px 24px rgba(31, 122, 88, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
}

.btn-light {
  background: var(--ink);
  color: #fff;
}

.btn-ghost {
  border-color: var(--line);
  background: var(--surface);
}

.hero {
  position: relative;
  padding: 72px 0 56px;
  overflow: clip;
}

.hero-bg {
  position: absolute;
  inset: -120px auto auto -100px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, #d0f8cf 0%, rgba(208, 248, 207, 0) 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.pill {
  display: inline-block;
  margin: 0 0 10px;
  padding: 6px 12px;
  border: 1px solid #cfe4ce;
  border-radius: 999px;
  font-weight: 700;
  font-size: 13px;
  background: #f2fbef;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(34px, 5vw, 58px);
  letter-spacing: -1px;
}

h2 {
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.4px;
}

.lead {
  color: var(--muted);
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 14px;
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
  color: #3d5147;
  font-size: 14px;
}

.trust-list li {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid #deeadf;
  border-radius: 999px;
  padding: 6px 12px;
}

.hero-card {
  background: linear-gradient(175deg, #0f261d, #1a3a2d);
  color: #fff;
  border-radius: 24px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.hero-card h3 {
  color: #b8d8ca;
  font-size: 14px;
  margin-bottom: 14px;
}

.hero-card dl {
  margin: 0;
}

.hero-card dl div {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 10px 0;
}

.hero-card dt {
  color: rgba(255, 255, 255, 0.65);
}

.hero-card dd {
  margin: 0;
  font-weight: 700;
}

.meter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 18px 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  padding: 10px 12px;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stats div {
  padding: 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
}

.stats small {
  display: block;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 4px;
}

.section {
  padding: 70px 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(225, 238, 226, 0.4), rgba(225, 238, 226, 0.08));
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--primary-dark);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 12px;
}

.cards {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.cards.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card p {
  color: var(--muted);
  margin: 0;
}

.card strong {
  display: inline-block;
  margin-top: 12px;
}

.steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.steps li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.steps span {
  width: 52px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  font-weight: 800;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(140deg, #1f7a58, #2a9b6f);
}

.pricing-grid .plan {
  position: relative;
}

.badge {
  position: absolute;
  top: 12px;
  right: 12px;
  margin: 0;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: var(--accent);
}

.price {
  font-size: 38px;
  font-weight: 800;
  margin: 10px 0;
}

.price span {
  font-size: 16px;
  color: var(--muted);
}

.plan ul {
  margin: 0 0 18px;
  padding: 0 0 0 18px;
}

.plan li {
  margin: 6px 0;
}

.plan.featured {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow);
}

.narrow {
  width: min(840px, 92vw);
}

details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  margin-top: 12px;
}

summary {
  cursor: pointer;
  font-weight: 700;
}

details p {
  margin: 10px 0 4px;
  color: var(--muted);
}

.cta {
  background: linear-gradient(135deg, #10281f, #1e5b42);
  color: #fff;
  text-align: center;
}

.cta p {
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 16px;
}

.site-footer {
  background: #101612;
  color: #c6cec8;
  padding: 44px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 22px;
}

.site-footer h3,
.site-footer h4 {
  color: #fff;
}

.site-footer p {
  margin: 8px 0;
}

.copyright {
  width: min(1120px, 92vw);
  margin: 24px auto 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 16px;
  color: #8f9b93;
}

@media (max-width: 980px) {
  .hero-grid,
  .cards.three,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    position: fixed;
    inset: 73px 0 auto 0;
    background: rgba(247, 248, 244, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 12px 4vw 18px;
    display: none;
    flex-direction: column;
  }

  .nav.open {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-wrap > .btn {
    display: none;
  }
}

.subhero {
  padding: 68px 0 32px;
}

.contact-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr 1.3fr;
}

.contact-form {
  display: grid;
  gap: 12px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(31, 122, 88, 0.24);
  border-color: var(--primary);
}

@media (max-width: 980px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}

.contact-form select:focus {
  outline: 2px solid rgba(31, 122, 88, 0.24);
  border-color: var(--primary);
}

.declaration {
  border: 1px solid #cad5ca;
  background: linear-gradient(180deg, #fbfcfa, #f4f7f1);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(16, 40, 31, 0.08);
}

.declaration-title {
  margin: 0;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.2px;
  border-bottom: 1px solid #dbe4da;
  background: rgba(31, 122, 88, 0.08);
}

.declaration-body {
  padding: 14px 16px 16px;
  color: #3d4a43;
  font-size: 13px;
  line-height: 1.7;
}

.declaration-body p {
  margin: 0 0 8px;
}

.declaration-clauses {
  margin: 8px 0 10px;
  padding: 0;
  list-style: none;
  border-top: 1px dashed #c9d6cc;
}

.declaration-clauses li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px dashed #c9d6cc;
}

.clause-label {
  font-size: 12px;
  font-weight: 800;
  color: #295f46;
}

.clause-text {
  font-size: 13px;
  color: #3d4a43;
}