:root {
  color-scheme: light;
  --ink: #0a1930;
  --ink-soft: #48566a;
  --ink-faint: #626d7c;
  --navy: #071b3a;
  --navy-soft: #102b4d;
  --paper: #fbfaf8;
  --surface: #ffffff;
  --warm-gray: #f4f1ec;
  --line: #dddcd8;
  --line-strong: #c7c8c7;
  --coral: #a64f45;
  --coral-dark: #9e4c43;
  --coral-soft: #f7e9e5;
  --cyan: #00788a;
  --cyan-soft: #e5f5f6;
  --green: #617f68;
  --focus: #007f98;
  --header-height: 68px;
  --content-width: 1240px;
  --utility-width: 1040px;
  --page-gutter: clamp(20px, 4vw, 64px);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  background: var(--paper);
}

body {
  min-width: 280px;
  margin: 0;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

a:hover {
  color: var(--coral-dark);
}

a:focus-visible,
button:focus-visible {
  border-radius: 6px;
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

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

h1,
h2,
h3 {
  color: var(--ink);
  text-wrap: balance;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 12px;
  padding: 10px 15px;
  border-radius: 8px;
  background: var(--navy);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid rgba(10, 25, 48, 0.08);
  background: rgba(251, 250, 248, 0.97);
}

.site-header-inner {
  display: flex;
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--content-width));
  height: 100%;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark-shell {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 9px;
  background: var(--navy);
}

.brand-mark-shell img {
  width: 23px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(16px, 2.6vw, 34px);
}

.site-nav a {
  position: relative;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.site-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  height: 1px;
  background: var(--coral);
  content: "";
}

.page-hero {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.page-hero-inner,
.page-shell {
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--utility-width));
  margin: 0 auto;
}

.page-hero-inner {
  padding: clamp(72px, 9vw, 116px) 0 clamp(64px, 8vw, 98px);
}

.page-hero h1 {
  margin-bottom: 22px;
  font-size: clamp(3.4rem, 7vw, 6rem);
  font-weight: 760;
  letter-spacing: -0.075em;
  line-height: 1.04;
}

.page-hero-label,
.section-kicker,
.card-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-hero-label {
  margin-bottom: 18px;
  color: var(--coral);
}

.page-hero-description {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  line-height: 1.9;
}

.site-footer {
  padding: clamp(52px, 7vw, 82px) var(--page-gutter) 28px;
  background: var(--navy);
  color: #ffffff;
}

.footer-inner,
.footer-meta,
.apple-trademark-credit {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.footer-inner {
  display: flex;
  min-height: 120px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-brand > img {
  width: 44px;
  height: auto;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  margin-bottom: 3px;
  font-size: 1.12rem;
  letter-spacing: -0.025em;
}

.footer-brand span {
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px clamp(20px, 3vw, 42px);
}

.footer-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.83rem;
  font-weight: 700;
  text-decoration: none;
}

.footer-nav a:hover,
.footer-meta a:hover {
  color: #ffffff;
}

.footer-meta {
  display: flex;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.74rem;
}

.footer-meta p {
  margin: 0;
}

.footer-meta a {
  color: rgba(255, 255, 255, 0.62);
  text-underline-offset: 4px;
}

.apple-trademark-credit {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.72rem;
  line-height: 1.75;
}

@media (max-width: 760px) {
  :root {
    --page-gutter: 20px;
  }

  .site-header-inner {
    width: calc(100% - 28px);
    gap: 12px;
  }

  .brand-link {
    gap: 8px;
    font-size: 0.88rem;
  }

  .brand-mark-shell {
    width: 33px;
    height: 33px;
    border-radius: 8px;
  }

  .brand-mark-shell img {
    width: 21px;
  }

  .site-nav {
    gap: 16px;
  }

  .site-nav a {
    font-size: 0.75rem;
  }

  .page-hero h1 {
    font-size: clamp(3rem, 13vw, 4.5rem);
  }

  .footer-inner {
    min-height: 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 32px;
  }

  .footer-nav {
    justify-content: flex-start;
  }

  .footer-meta {
    margin-top: 38px;
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
}

@media (max-width: 560px) {
  :root {
    --header-height: 108px;
  }

  .site-header-inner {
    height: 100%;
    padding: 8px 0;
    align-items: stretch;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
  }

  .brand-link {
    min-height: 44px;
    align-self: flex-start;
  }

  .site-nav {
    width: 100%;
    height: 48px;
    border-top: 1px solid var(--line);
    justify-content: space-between;
    gap: 10px;
  }

  .site-nav a {
    min-height: 48px;
    font-size: 0.72rem;
  }

  .site-nav a[aria-current="page"]::after {
    bottom: 2px;
  }

  .page-hero-inner {
    padding: 58px 0 54px;
  }

  .page-hero h1 {
    font-size: clamp(2.8rem, 14.6vw, 4rem);
    line-height: 1.08;
  }
}

@media (max-width: 340px) {
  :root {
    --page-gutter: 16px;
  }

  .brand-link > span:last-child {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}