:root {
  --paper: #fbfcf8;
  --paper-strong: #ffffff;
  --mist: #eef5ef;
  --ink: #142321;
  --ink-soft: #4b5c57;
  --line: #d9e4dc;
  --teal: #0f766e;
  --teal-dark: #0b4e49;
  --green: #b8df56;
  --coral: #b84e2f;
  --amber: #e8b73f;
  --shadow: 0 18px 50px rgba(20, 35, 33, 0.12);
  --radius: 8px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.8;
  letter-spacing: 0;
}

body.nav-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}

main:focus {
  outline: none;
}

button,
input,
textarea {
  font: inherit;
}

.skip-link,
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  z-index: 100;
  width: auto;
  height: auto;
  clip: auto;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--paper-strong);
  background: var(--ink);
  border-radius: var(--radius);
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 32px;
  color: var(--ink);
  transition: background 180ms ease, box-shadow 180ms ease, padding 180ms ease;
}

.site-header.is-scrolled {
  padding: 12px 32px;
  background: rgba(251, 252, 248, 0.94);
  box-shadow: 0 10px 35px rgba(20, 35, 33, 0.08);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  color: var(--paper-strong);
  background: var(--teal);
  font-size: 1rem;
}

.brand-text {
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  min-height: 32px;
  padding: 6px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.85);
}

.nav-toggle span:not(.visually-hidden) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 88svh;
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: 112px 0 64px;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(251, 252, 248, 0.98) 0%, rgba(251, 252, 248, 0.92) 39%, rgba(251, 252, 248, 0.38) 69%, rgba(251, 252, 248, 0.08) 100%),
    linear-gradient(0deg, rgba(251, 252, 248, 0.9) 0%, rgba(251, 252, 248, 0) 26%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

main p,
main li,
main blockquote {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: 3.7rem;
  line-height: 1.14;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 20px;
  font-size: 2.25rem;
  line-height: 1.25;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.45;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 30px;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(20, 35, 33, 0.15);
}

.button-primary {
  color: var(--paper-strong);
  background: var(--teal);
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.74);
  border-color: var(--line);
}

.button-outline {
  color: var(--teal-dark);
  background: transparent;
  border-color: var(--teal);
}

.hero-facts {
  display: grid;
  width: min(100%, 560px);
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.hero-facts div {
  padding: 12px 14px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
}

.hero-facts strong,
.hero-facts span {
  display: block;
}

.hero-facts strong {
  color: var(--teal-dark);
  font-size: 1.3rem;
  line-height: 1.2;
}

.hero-facts span {
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.45;
}

.section {
  padding: 88px 0;
}

.section-light {
  background: var(--paper);
}

.section-paper {
  background: var(--mist);
}

.section-ink {
  color: var(--paper-strong);
  background:
    linear-gradient(135deg, rgba(184, 223, 86, 0.08) 0%, rgba(229, 111, 69, 0.06) 100%),
    var(--ink);
}

.section-inner {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 42px;
}

.section-heading.compact {
  max-width: 780px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading p {
  color: var(--ink-soft);
}

.section-ink .eyebrow,
.section-ink p {
  color: rgba(255, 255, 255, 0.76);
}

.source-link {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  margin-top: 4px;
  color: var(--teal-dark);
  font-size: 0.88rem;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.reason-grid,
.proof-grid,
.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.reason-card,
.proof-card,
.voice-card,
.plan-card,
details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-strong);
  box-shadow: 0 12px 32px rgba(20, 35, 33, 0.06);
}

.reason-card,
.proof-card {
  padding: 26px;
}

.reason-number,
.proof-tag {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 900;
}

.reason-card p,
.proof-card p,
.voice-card blockquote,
.voice-card figcaption {
  color: var(--ink-soft);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 58px;
  align-items: center;
}

.flow-list {
  display: grid;
  gap: 12px;
}

.flow-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.flow-item span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--green);
  font-weight: 900;
}

.flow-item p {
  margin: 0;
  color: var(--paper-strong);
  font-weight: 800;
}

.plan-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 20px;
  align-items: stretch;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px;
}

.plan-card-featured {
  border-color: rgba(15, 118, 110, 0.55);
  box-shadow: var(--shadow);
}

.plan-ribbon {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 6px 10px;
  border-radius: var(--radius);
  color: var(--paper-strong);
  background: var(--coral);
  font-size: 0.78rem;
  font-weight: 900;
}

.plan-head {
  margin-bottom: 18px;
}

.plan-label {
  margin-bottom: 4px;
  color: var(--teal);
  font-weight: 900;
}

.price {
  margin-bottom: 0;
  font-weight: 900;
  line-height: 1.2;
}

.price span {
  font-size: 2.8rem;
}

.price small {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.plan-copy {
  color: var(--ink-soft);
}

.check-list {
  display: grid;
  gap: 9px;
  margin: 6px 0 26px;
  padding: 0;
  list-style: none;
}

.check-list.columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.check-list li {
  position: relative;
  padding-left: 26px;
  color: var(--ink-soft);
}

.check-list li::before {
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  content: "";
  background: var(--green);
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.82);
}

.plan-card .button {
  width: 100%;
  margin-top: auto;
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  gap: 52px;
  align-items: center;
}

.feature-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.feature-copy p {
  color: var(--ink-soft);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.feature-list div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-strong);
}

.feature-list strong,
.feature-list span {
  display: block;
}

.feature-list strong {
  margin-bottom: 4px;
  color: var(--teal-dark);
}

.feature-list span {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.6;
}

.voice-grid {
  margin-top: 18px;
}

.voice-card {
  margin: 0;
  padding: 26px;
}

.voice-card blockquote {
  margin: 0 0 18px;
}

.voice-card figcaption {
  font-size: 0.88rem;
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 860px;
  margin: 0 auto;
}

details {
  padding: 0 22px;
}

summary {
  cursor: pointer;
  min-height: 48px;
  padding: 20px 0;
  font-weight: 900;
}

details p {
  margin-bottom: 20px;
  color: var(--ink-soft);
}

.contact-section {
  color: var(--paper-strong);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.96) 0%, rgba(11, 78, 73, 0.98) 62%),
    var(--teal-dark);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(360px, 1fr);
  gap: 48px;
  align-items: start;
}

.contact-copy .eyebrow,
.contact-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-card {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
}

.contact-card-label {
  width: fit-content;
  margin-bottom: 0;
  padding: 6px 10px;
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1.4;
}

.contact-card h3 {
  margin-bottom: 0;
  color: var(--paper-strong);
  font-size: 1.45rem;
}

.contact-card p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
}

.contact-card .button-primary {
  width: fit-content;
  margin-top: 6px;
  background: var(--green);
  color: var(--ink);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 32px;
  color: var(--ink-soft);
  background: var(--paper);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  font-weight: 800;
}

@media (max-width: 980px) {
  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 1.9rem;
  }

  .reason-grid,
  .proof-grid,
  .voice-grid,
  .plan-grid,
  .feature,
  .contact,
  .split {
    grid-template-columns: 1fr;
  }

  .feature {
    gap: 34px;
  }

  .contact {
    gap: 32px;
  }
}

@media (max-width: 760px) {
  .site-header {
    padding: 12px 18px;
  }

  .brand-text {
    max-width: 11em;
    line-height: 1.3;
  }

  .nav-toggle {
    display: block;
    position: relative;
    z-index: 31;
  }

  .site-nav {
    position: fixed;
    z-index: 30;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 22px;
    background: rgba(251, 252, 248, 0.98);
    color: var(--ink);
    font-size: 1.1rem;
    visibility: hidden;
    transform: translateX(100%);
    transition: transform 180ms ease;
  }

  body.nav-open .site-nav {
    visibility: visible;
    transform: translateX(0);
  }

  .hero {
    min-height: auto;
    padding: 104px 0 56px;
  }

  .hero-image {
    object-position: 63% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(251, 252, 248, 0.98) 0%, rgba(251, 252, 248, 0.9) 64%, rgba(251, 252, 248, 0.3) 100%),
      linear-gradient(0deg, rgba(251, 252, 248, 0.96) 0%, rgba(251, 252, 248, 0.28) 100%);
  }

  h1 {
    font-size: 2.1rem;
  }

  h2 {
    font-size: 1.65rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .button,
  .hero-actions .button {
    width: 100%;
  }

  .hero-facts,
  .check-list.columns,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .section-inner,
  .hero-inner {
    width: min(calc(100% - 32px), var(--max));
  }

  .reason-card,
  .proof-card,
  .voice-card,
  .plan-card,
  .contact-card {
    padding: 22px;
  }

  .plan-ribbon {
    position: static;
    width: fit-content;
    margin-bottom: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 1.85rem;
  }

  h2 {
    font-size: 1.45rem;
  }

  .price span {
    font-size: 2.2rem;
  }
}