:root {
  --ink: #102b2c;
  --ink-soft: #305252;
  --paper: #fbfaf6;
  --mist: #e5eee9;
  --sea: #1c6964;
  --sea-dark: #0b4c49;
  --sun: #e8b65b;
  --line: #c8d7d1;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 4px;
}

.page-shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 12px;
  left: 12px;
  transform: translateY(-180%);
  padding: 10px 14px;
  background: var(--white);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 18px rgb(16 43 44 / 18%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid rgb(16 43 44 / 12%);
  background: rgb(251 250 246 / 94%);
}

.header-content,
.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-content {
  min-height: 76px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.wordmark-mark {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 4px solid var(--sea);
  border-radius: 50% 50% 50% 8%;
  transform: rotate(-25deg);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-list a:hover {
  color: var(--sea-dark);
  text-decoration: underline;
  text-underline-offset: 5px;
}

.hero {
  overflow: hidden;
  padding: clamp(80px, 12vw, 150px) 0;
  background:
    radial-gradient(circle at 83% 5%, rgb(232 182 91 / 38%), transparent 25rem),
    linear-gradient(120deg, #edf4ef 0%, #f9f9f4 54%, #e3efeb 100%);
}

.hero-grid,
.split-layout,
.privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: center;
}

.eyebrow,
.note-label,
.notice-label {
  margin: 0 0 16px;
  color: var(--sea-dark);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  font-weight: 750;
  letter-spacing: -0.05em;
  line-height: 1.05;
}

h1 {
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(3rem, 7vw, 6.25rem);
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.1rem, 4.1vw, 4rem);
}

h3 {
  font-size: 1.35rem;
}

.hero-intro {
  max-width: 640px;
  margin-bottom: 30px;
  color: var(--ink-soft);
  font-size: clamp(1.06rem, 2vw, 1.25rem);
}

.text-link {
  color: var(--sea-dark);
  font-weight: 800;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.product-note {
  position: relative;
  padding: 34px;
  border: 1px solid rgb(16 43 44 / 13%);
  border-radius: 20px;
  background: rgb(255 255 255 / 66%);
  box-shadow: 0 18px 45px rgb(16 43 44 / 8%);
}

.product-note::before {
  position: absolute;
  top: -10px;
  left: 34px;
  width: 54px;
  height: 4px;
  background: var(--sun);
  content: "";
}

.note-name {
  margin-bottom: 16px;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.05em;
}

.product-note p:last-child {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.section {
  padding: clamp(76px, 10vw, 128px) 0;
}

.company-section {
  background: var(--ink);
  color: var(--white);
}

.company-section .eyebrow {
  color: #b7ded2;
}

.body-copy {
  color: #d8e7e1;
  font-size: 1.08rem;
}

.body-copy p:last-child {
  margin-bottom: 0;
}

.section-heading {
  max-width: 700px;
  margin-bottom: 46px;
}

.section-heading h2 {
  margin-bottom: 16px;
}

.section-heading > p:last-child {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 230px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
}

.feature-card:nth-child(2) {
  background: #f2f7f1;
}

.feature-card:nth-child(3) {
  background: #f9f3e7;
}

.feature-card:nth-child(4) {
  background: #eef4f3;
}

.feature-card h3 {
  margin-bottom: 18px;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.product-detail {
  max-width: 850px;
  margin: 42px auto 0;
  padding-top: 30px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 1.08rem;
  text-align: center;
}

.product-detail p {
  margin-bottom: 0;
}

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

.privacy-content {
  display: grid;
  gap: 30px;
}

.privacy-list {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.privacy-list li {
  position: relative;
  padding-left: 28px;
  color: var(--ink-soft);
}

.privacy-list li::before {
  position: absolute;
  left: 0;
  color: var(--sea-dark);
  content: "✓";
  font-weight: 800;
}

.health-notice {
  padding: 30px;
  border-left: 5px solid var(--sea);
  background: var(--white);
}

.health-notice h3 {
  margin-bottom: 14px;
}

.health-notice p:last-child {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.site-footer {
  padding: 28px 0;
  background: #0b2223;
  color: #d5e3de;
  font-size: 0.9rem;
}

.site-footer p {
  margin-bottom: 0;
}

@media (max-width: 820px) {
  .hero-grid,
  .split-layout,
  .privacy-layout {
    grid-template-columns: 1fr;
  }

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

  .product-note {
    max-width: 520px;
  }
}

@media (max-width: 580px) {
  .page-shell {
    width: min(100% - 32px, 1120px);
  }

  .header-content,
  .footer-content {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
  }

  .header-content {
    padding: 18px 0;
  }

  .nav-list {
    justify-content: flex-start;
    gap: 8px 18px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 0;
  }

  .product-note,
  .health-notice {
    padding: 25px;
  }
}