:root {
  --ink: #050607;
  --paper: #f4f3ef;
  --white: #fff;
  --blue: #245cff;
  --mist: #beccdc;
  --text: #151719;
  --muted: #696d73;
  --line: rgba(5, 6, 7, .16);
  --line-dark: rgba(255, 255, 255, .18);
  --sans: "Inter", "Noto Sans JP", system-ui, -apple-system, sans-serif;
  --serif: "Noto Serif JP", serif;
  --outer: clamp(20px, 5vw, 72px);
  --section-space: clamp(104px, 14vw, 208px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, p, ol, ul { margin: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: .015em; }
ol, ul { padding: 0; }
li { list-style: none; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: .28em; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

.skip {
  position: fixed;
  z-index: 100;
  top: -64px;
  left: 16px;
  background: var(--white);
  color: var(--ink);
  padding: 10px 16px;
  transition: top .2s;
}
.skip:focus { top: 12px; }

.site-header {
  position: absolute;
  z-index: 20;
  inset: 0 0 auto;
  color: var(--white);
  border-bottom: 1px solid var(--line-dark);
}
.header-inner {
  width: min(1440px, 100%);
  min-height: 76px;
  margin: 0 auto;
  padding: 0 var(--outer);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .06em;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
  border: 1.5px solid var(--blue);
  border-radius: 50%;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px 4px auto;
  height: 1.5px;
  background: var(--blue);
}
.site-header nav { display: flex; gap: 30px; }
.site-header nav a { font-size: 13px; letter-spacing: .1em; color: var(--mist); }
.header-cta {
  min-height: 44px;
  padding: 7px 22px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, .5);
  font-size: 13px;
  letter-spacing: .08em;
}
.header-cta:hover { background: var(--blue); border-color: var(--blue); text-decoration: none; }

.hero {
  min-height: 100svh;
  padding: 156px var(--outer) 104px;
  display: grid;
  align-items: center;
  background: var(--ink);
  color: var(--white);
}
.hero-grid {
  width: min(1296px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
  gap: clamp(64px, 9vw, 140px);
  align-items: end;
}
.eyebrow {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .25em;
  line-height: 1.6;
  text-transform: uppercase;
}
.hero .eyebrow, .section-dark .eyebrow, .final-cta .eyebrow { color: var(--mist); }
.hero h1 {
  margin-top: 26px;
  font-size: clamp(38px, 5vw, 72px);
  line-height: 1.42;
}
.hero-lead {
  max-width: 44em;
  margin-top: 32px;
  color: var(--mist);
  font-family: var(--serif);
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 2.05;
}
.hero-actions { margin-top: 44px; display: flex; flex-wrap: wrap; gap: 14px; }
.button {
  min-height: 54px;
  padding: 0 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .04em;
  line-height: 1.5;
}
.button:hover { text-decoration: none; }
.button-primary { background: var(--blue); color: var(--white); }
.button-primary:hover { background: #1848d8; }
.button-quiet { border-color: rgba(255, 255, 255, .45); color: var(--white); }
.scope-note { margin-top: 24px; max-width: 52em; color: #929ba8; font-size: 13px; line-height: 1.8; }
.hero-proof { border-top: 1px solid var(--line-dark); }
.proof-label { padding: 18px 0; border-bottom: 1px solid var(--line-dark); color: var(--mist); font-size: 10px; letter-spacing: .25em; text-transform: uppercase; }
.hero-proof li {
  min-height: 88px;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-content: center;
  column-gap: 16px;
  border-bottom: 1px solid var(--line-dark);
}
.hero-proof li span { grid-row: 1 / 3; color: var(--blue); font-size: 11px; }
.hero-proof strong { font-family: var(--serif); font-size: 17px; font-weight: 500; }
.hero-proof small { color: #9099a5; font-size: 12px; }

.section { padding: var(--section-space) var(--outer); }
.section-grid, .wide { width: min(1296px, 100%); margin: 0 auto; }
.section-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 32px; row-gap: 64px; }
.section-head { grid-column: 1 / 6; }
.section-head h2, .plans-head h2 {
  margin-top: 22px;
  font-size: clamp(30px, 3.8vw, 56px);
  line-height: 1.5;
}
.section-note { margin-top: 30px; color: var(--muted); font-size: 15px; }
.prose { grid-column: 7 / 13; display: grid; gap: 30px; align-content: start; padding-top: 46px; }
.prose p { font-family: var(--serif); font-size: clamp(17px, 1.5vw, 21px); line-height: 2.1; }
.section-light { background: var(--white); }
.section-dark { background: var(--ink); color: var(--white); }

.deliverables .section-head { grid-column: 1 / 5; }
.field-list { grid-column: 6 / 13; border-top: 1px solid var(--line); }
.field-list li {
  min-height: 68px;
  padding: 15px 0;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  border-bottom: 1px solid var(--line);
  font-family: var(--serif);
  line-height: 1.6;
}
.field-list span { color: var(--blue); font-family: var(--sans); font-size: 11px; }

.plans-head { max-width: 820px; }
.plans-head > p:last-child { margin-top: 24px; color: var(--muted); }
.plan-grid { margin-top: 88px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.plan { min-width: 0; padding: 44px clamp(22px, 3vw, 42px) 48px; border-right: 1px solid var(--line); }
.plan:last-child { border-right: 0; }
.plan-featured { background: var(--white); box-shadow: inset 0 4px var(--blue); }
.plan-type { color: var(--blue); font-size: 10px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; }
.plan h3 { margin-top: 18px; font-size: 26px; }
.plan-scope { margin-top: 28px; color: var(--muted); }
.price { margin-top: 8px; display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; line-height: 1.2; }
.price strong { font-size: clamp(36px, 4vw, 54px); font-weight: 500; letter-spacing: -.035em; }
.price span { font-size: 13px; }
.delivery { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14px; }

.quality .section-head { grid-column: 1 / 6; }
.quality-body { grid-column: 7 / 13; }
.quality-lead { font-family: var(--serif); font-size: clamp(19px, 1.8vw, 25px); line-height: 2; }
.check-list { margin-top: 46px; border-top: 1px solid var(--line-dark); }
.check-list li { position: relative; padding: 20px 0 20px 30px; border-bottom: 1px solid var(--line-dark); color: var(--mist); }
.check-list li::before { content: ""; position: absolute; left: 0; top: 2.1em; width: 13px; height: 1px; background: var(--blue); }

.record-number { grid-column: 1 / 5; }
.big-number { margin-top: 24px; font-size: clamp(84px, 12vw, 168px); font-weight: 500; line-height: 1; letter-spacing: -.06em; }
.big-number small { margin-left: 12px; font-family: var(--serif); font-size: 20px; letter-spacing: 0; }
.record-copy { grid-column: 6 / 13; padding-top: 44px; }
.record-copy h2 { font-size: clamp(26px, 3vw, 43px); line-height: 1.65; }
.record-copy p { margin-top: 28px; color: var(--muted); }
.record-copy .confidentiality { margin-top: 38px; padding: 18px 22px; border-left: 2px solid var(--blue); background: var(--white); color: var(--text); font-size: 14px; }

.boundary-grid { margin-top: 80px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
.boundary-grid article { padding: clamp(28px, 4vw, 48px); border: 1px solid var(--line); background: var(--paper); }
.boundary-grid h3 { font-size: 26px; }
.boundary-note { margin-top: 16px; color: var(--muted); font-size: 13px; }
.boundary-grid ul { margin-top: 30px; display: grid; gap: 18px; }
.boundary-grid li { position: relative; padding-left: 24px; line-height: 1.7; }
.boundary-grid li::before { content: "—"; position: absolute; left: 0; color: var(--blue); }

.before .section-head { grid-column: 1 / 5; }
.before-list { grid-column: 6 / 13; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.before-list li { min-width: 0; padding: 24px 22px 24px 0; display: grid; grid-template-columns: 36px minmax(0, 1fr); border-bottom: 1px solid var(--line); }
.before-list li:nth-child(odd) { border-right: 1px solid var(--line); }
.before-list li:nth-child(even) { padding-left: 22px; }
.before-list span { color: var(--blue); font-size: 11px; }
.before-list p { line-height: 1.65; }

.final-cta { padding: var(--section-space) var(--outer); background: var(--ink); color: var(--white); }
.cta-inner { width: min(1040px, 100%); margin: 0 auto; text-align: center; }
.cta-inner h2 { margin-top: 24px; font-size: clamp(30px, 4.5vw, 60px); line-height: 1.55; }
.cta-inner h2 span { color: var(--blue); }
.cta-inner > p:not(.eyebrow) { margin-top: 30px; color: var(--mist); }
.cta-inner .button { margin-top: 46px; }

.site-footer {
  padding: 76px var(--outer) 36px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 46px;
  background: var(--ink);
  color: var(--white);
  border-top: 1px solid var(--line-dark);
}
.site-footer > * { width: 100%; max-width: 1296px; }
.site-footer > div { justify-self: end; }
.brand-footer { color: var(--white); }
.site-footer > div > p { margin-top: 12px; color: var(--mist); font-size: 13px; }
.site-footer nav { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 12px 28px; }
.site-footer nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--mist); font-size: 13px; }
.copyright { grid-column: 1 / -1; max-width: 1296px; justify-self: center; padding-top: 28px; border-top: 1px solid var(--line-dark); color: var(--muted); font-size: 11px; }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-proof { width: min(620px, 100%); }
  .section-head, .deliverables .section-head, .quality .section-head, .before .section-head { grid-column: 1 / 6; }
  .prose, .quality-body, .record-copy { grid-column: 6 / 13; }
  .field-list, .before-list { grid-column: 6 / 13; }
  .record-number { grid-column: 1 / 5; }
  .plan-grid { grid-template-columns: minmax(0, 1fr); }
  .plan { border-right: 0; border-bottom: 1px solid var(--line); }
  .plan:last-child { border-bottom: 0; }
}

@media (max-width: 720px) {
  .site-header nav { display: none; }
  .header-inner { gap: 16px; }
  .header-cta { padding-inline: 16px; }
  .hero { min-height: auto; padding-top: 132px; }
  .hero h1 br { display: none; }
  .section-grid { grid-template-columns: minmax(0, 1fr); }
  .section-head, .deliverables .section-head, .quality .section-head, .before .section-head,
  .prose, .field-list, .quality-body, .record-number, .record-copy, .before-list { grid-column: 1; }
  .prose, .record-copy { padding-top: 0; }
  .boundary-grid { grid-template-columns: minmax(0, 1fr); }
  .before-list { grid-template-columns: minmax(0, 1fr); }
  .before-list li:nth-child(odd) { border-right: 0; }
  .before-list li:nth-child(even) { padding-left: 0; }
  .site-footer { grid-template-columns: minmax(0, 1fr); }
  .copyright { grid-column: 1; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .brand { font-size: 17px; }
  .cta-inner h2 { font-size: 27px; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .hero-actions .button { padding-inline: 18px; }
  .hero-proof li { min-height: 82px; }
  .plans-head h2, .section-head h2 { font-size: 30px; }
  .price strong { font-size: 42px; }
  .site-footer nav { display: grid; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; }
}