:root {
  --navy: #071d33;
  --navy-2: #0b2b49;
  --blue: #0a66b2;
  --cyan: #3cc4c9;
  --ice: #eaf5f8;
  --paper: #f6f8f7;
  --ink: #122335;
  --muted: #5c6b78;
  --line: #d9e2e6;
  --white: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
svg { display: block; }
.shell { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.section-pad { padding: 136px 0; }

.site-header {
  position: absolute;
  z-index: 30;
  inset: 0 0 auto;
  color: white;
  border-bottom: 1px solid rgba(255,255,255,.16);
}
.header-inner { height: 92px; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.62);
  border-radius: 50%;
  font: 500 25px/1 Georgia, serif;
  position: relative;
}
.brand-mark::after { content: ""; position: absolute; right: 0; bottom: 3px; width: 10px; height: 1px; background: currentColor; transform: rotate(42deg); }
.brand-copy { display: flex; flex-direction: column; gap: 3px; }
.brand-copy strong { font: 500 24px/1 Georgia, "Times New Roman", serif; letter-spacing: .04em; }
.brand-copy small { font: 700 8px/1.2 Arial, sans-serif; letter-spacing: .16em; opacity: .76; }
.desktop-nav { display: flex; align-items: center; gap: 27px; margin-left: auto; }
.desktop-nav a { font-size: 12px; font-weight: 700; letter-spacing: .04em; transition: opacity .2s; }
.desktop-nav a:hover { opacity: .65; }
.header-cta {
  height: 46px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 0 19px;
  border: 1px solid rgba(255,255,255,.55);
  font-size: 12px;
  font-weight: 700;
  transition: background .2s, color .2s;
}
.header-cta:hover { background: white; color: var(--navy); }
.header-cta svg, .button svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.mobile-menu { display: none; }

.hero { min-height: 860px; position: relative; color: white; overflow: hidden; background: var(--navy); }
.hero-photo { position: absolute; inset: 0; background: url('conference-hero.png') center/cover no-repeat; transform: scale(1.01); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,22,39,.97) 0%, rgba(4,22,39,.88) 35%, rgba(4,22,39,.43) 63%, rgba(4,22,39,.22) 100%), linear-gradient(0deg, rgba(4,22,39,.75), transparent 42%); }
.hero-grid { position: absolute; inset: 0; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.2) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px); background-size: 96px 96px; mask-image: linear-gradient(90deg, black, transparent 72%); }
.hero-inner { position: relative; min-height: 740px; padding-top: 190px; display: flex; flex-direction: column; justify-content: center; }
.hero-copy { max-width: 760px; padding-bottom: 48px; }
.eyebrow { margin: 0 0 24px; color: var(--blue); font: 700 11px/1.2 Arial, sans-serif; letter-spacing: .22em; }
.eyebrow span { display: inline-block; width: 34px; height: 1px; margin: 0 12px 3px 0; background: currentColor; }
.eyebrow.light { color: #90dbe0; }
.hero h1 { margin: 0; font-size: clamp(48px, 5.4vw, 78px); line-height: 1.22; font-weight: 600; letter-spacing: -.045em; text-wrap: balance; }
.hero h1 em { color: #8ee1e1; font-style: normal; }
.hero-lead { max-width: 670px; margin: 32px 0 0; color: rgba(255,255,255,.82); font-size: 16px; line-height: 2; font-weight: 500; }
.hero-actions { display: flex; gap: 14px; margin-top: 40px; }
.button { min-height: 58px; display: inline-flex; align-items: center; justify-content: center; gap: 34px; padding: 0 28px; border: 1px solid transparent; font-size: 14px; font-weight: 700; transition: transform .2s, background .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--cyan); color: var(--navy); }
.button.primary:hover { background: #68d8da; }
.button.ghost { border-color: rgba(255,255,255,.48); color: white; }
.button.ghost:hover { background: rgba(255,255,255,.1); }
.hero-note { position: absolute; right: 0; top: 52%; margin: 0; writing-mode: vertical-rl; font-size: 11px; letter-spacing: .13em; color: rgba(255,255,255,.68); }
.hero-note span { color: white; font-weight: 700; margin-bottom: 16px; }
.hero-capabilities { position: absolute; inset: auto 0 0; min-height: 120px; background: rgba(4,25,44,.82); backdrop-filter: blur(8px); border-top: 1px solid rgba(255,255,255,.12); }
.capability-row { display: grid; grid-template-columns: repeat(3, 1fr); min-height: 120px; }
.capability-row > div { display: grid; grid-template-columns: 44px 1fr; grid-template-rows: auto auto; align-content: center; padding: 0 50px; border-right: 1px solid rgba(255,255,255,.14); }
.capability-row > div:first-child { border-left: 1px solid rgba(255,255,255,.14); }
.capability-row span { grid-row: 1/3; align-self: center; color: #74d3d5; font: 400 12px/1 Arial; }
.capability-row strong { font-size: 15px; letter-spacing: .04em; }
.capability-row small { margin-top: 6px; color: rgba(255,255,255,.58); font-size: 11px; }

.intro { background: var(--paper); }
.intro-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 110px; }
.sticky-heading { align-self: start; position: sticky; top: 40px; }
.section-heading h2 { margin: 0; font-size: clamp(36px, 4.1vw, 58px); line-height: 1.4; letter-spacing: -.045em; font-weight: 600; }
.section-heading > p:last-child { margin: 24px 0 0; color: var(--muted); line-height: 1.9; }
.section-heading.centered { text-align: center; max-width: 800px; margin: 0 auto 70px; }
.section-heading.inverse { color: white; }
.section-heading.inverse > p:last-child { color: rgba(255,255,255,.68); }
.intro-content { padding-top: 50px; }
.intro-content > p { color: var(--muted); font-size: 15px; line-height: 2.1; }
.intro-content .large-copy { color: var(--ink); margin: 0 0 28px; font-size: 23px; line-height: 1.85; font-weight: 600; }
.challenge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 58px; background: var(--line); border: 1px solid var(--line); }
.challenge-grid article { background: white; min-height: 182px; padding: 30px; }
.challenge-grid span { color: var(--blue); font: 600 11px/1 Arial; letter-spacing: .15em; }
.challenge-grid h3 { margin: 38px 0 0; font-size: 18px; line-height: 1.65; }

.services { background: var(--navy); color: white; position: relative; overflow: hidden; }
.services::before { content: "Q"; position: absolute; right: -40px; top: 30px; color: rgba(255,255,255,.025); font: 600 430px/1 Georgia, serif; }
.phase-line { max-width: 780px; margin: 0 auto 58px; display: grid; grid-template-columns: repeat(3,1fr); position: relative; }
.phase-line::before { content: ""; position: absolute; left: 16.6%; right: 16.6%; top: 7px; height: 1px; background: rgba(255,255,255,.2); }
.phase-line div { text-align: center; position: relative; }
.phase-line div::before { content: ""; display: block; width: 15px; height: 15px; margin: 0 auto 14px; border: 4px solid var(--navy); border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 1px rgba(255,255,255,.4); position: relative; z-index: 2; }
.phase-line span { display: block; color: #75d2d5; font: 700 9px/1 Arial; letter-spacing: .18em; }
.phase-line strong { display: block; margin-top: 8px; font-size: 13px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; position: relative; }
.service-card { min-height: 410px; padding: 34px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.12); transition: transform .25s, background .25s; }
.service-card:hover { transform: translateY(-5px); background: rgba(255,255,255,.085); }
.service-top { display: flex; align-items: center; justify-content: space-between; }
.service-top span { color: var(--cyan); font: 600 12px/1 Arial; letter-spacing: .12em; }
.service-top i { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; position: relative; }
.service-top i::before, .service-top i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 1px; background: var(--cyan); transform: translate(-50%,-50%); }
.service-top i::after { transform: translate(-50%,-50%) rotate(90deg); }
.service-card h3 { margin: 46px 0 18px; font-size: 23px; letter-spacing: -.02em; }
.service-card > p { margin: 0; color: rgba(255,255,255,.64); line-height: 1.85; font-size: 13px; }
.service-card ul { margin: 30px 0 0; padding: 26px 0 0; border-top: 1px solid rgba(255,255,255,.12); list-style: none; }
.service-card li { display: flex; align-items: center; gap: 10px; margin-top: 11px; color: rgba(255,255,255,.83); font-size: 12px; }
.service-card li svg { width: 15px; flex: 0 0 auto; fill: none; stroke: var(--cyan); stroke-width: 1.7; }

.strengths { background: white; }
.strengths-lead { display: grid; grid-template-columns: 1.1fr .9fr; gap: 100px; align-items: end; margin-bottom: 70px; }
.strengths-lead > p { margin: 0 0 8px; color: var(--muted); line-height: 2; font-size: 15px; }
.strength-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.strength-grid article { min-height: 390px; padding: 38px; background: var(--paper); border-top: 3px solid var(--line); }
.strength-grid article.featured { background: var(--ice); border-top-color: var(--cyan); transform: translateY(26px); }
.strength-number { color: var(--blue); font: 600 11px/1 Arial; letter-spacing: .15em; }
.strength-grid h3 { margin: 82px 0 24px; font-size: 23px; line-height: 1.65; letter-spacing: -.025em; }
.strength-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.95; }

.deliverables { background: var(--blue); color: white; position: relative; overflow: hidden; }
.deliverables::after { content: ""; position: absolute; right: -180px; top: -180px; width: 560px; height: 560px; border: 100px solid rgba(255,255,255,.04); border-radius: 50%; }
.deliverables-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 120px; position: relative; z-index: 1; }
.deliverable-copy { align-self: start; position: sticky; top: 40px; }
.deliverable-copy h2 { margin: 0; font-size: clamp(40px,4vw,58px); line-height: 1.45; letter-spacing: -.04em; }
.deliverable-copy > p:last-child { margin: 28px 0 0; color: rgba(255,255,255,.7); line-height: 2; font-size: 14px; }
.deliverable-list { border-top: 1px solid rgba(255,255,255,.3); }
.deliverable-list div { min-height: 76px; display: grid; grid-template-columns: 60px 1fr; align-items: center; border-bottom: 1px solid rgba(255,255,255,.22); }
.deliverable-list span { color: #9fe7e7; font: 600 10px/1 Arial; }
.deliverable-list strong { font-size: 16px; letter-spacing: .03em; }

.flow { background: var(--paper); }
.workflow { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5,1fr); list-style: none; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.workflow li { min-height: 250px; padding: 34px 28px; border-right: 1px solid var(--line); position: relative; }
.workflow li:last-child { border-right: 0; }
.workflow li > span { color: var(--blue); font: 700 10px/1 Arial; letter-spacing: .16em; }
.workflow li > div { margin-top: 80px; }
.workflow h3 { margin: 0 0 13px; font-size: 17px; }
.workflow p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }

.faq { background: white; }
.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 100px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 94px; display: flex; align-items: center; gap: 18px; padding: 24px 50px 24px 0; cursor: pointer; list-style: none; font-weight: 700; font-size: 15px; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 5px; top: 50%; transform: translateY(-50%); color: var(--blue); font: 300 27px/1 Arial; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list summary span { color: var(--blue); font: 500 19px/1 Georgia, serif; }
.faq-list details > p { margin: -6px 50px 0 37px; padding: 0 0 28px; color: var(--muted); font-size: 13px; line-height: 1.9; }

.contact-band { min-height: 600px; display: grid; place-items: center; position: relative; overflow: hidden; color: white; text-align: center; background: linear-gradient(130deg, #071c32, #0b3355); }
.contact-lines { position: absolute; inset: -20%; background: repeating-radial-gradient(ellipse at center, transparent 0 34px, rgba(77,203,207,.07) 35px 36px); transform: rotate(-12deg); }
.contact-inner { position: relative; z-index: 2; }
.contact-inner h2 { margin: 0; font-size: clamp(40px, 4.4vw, 64px); line-height: 1.5; letter-spacing: -.045em; }
.contact-inner > p:not(.eyebrow) { margin: 25px auto 34px; color: rgba(255,255,255,.7); font-size: 14px; line-height: 1.9; }
.button.white { background: white; color: var(--navy); min-width: 310px; }
.button.white:hover { background: var(--cyan); }

.site-footer { padding: 75px 0 24px; background: #041425; color: white; }
.footer-main { display: flex; justify-content: space-between; gap: 60px; padding-bottom: 58px; }
.footer-brand { margin-bottom: 30px; }
.footer-main > div:first-child > p { margin: 7px 0 0; color: rgba(255,255,255,.52); font-size: 11px; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 60px; align-content: start; padding-top: 8px; }
.footer-links a { font-size: 12px; color: rgba(255,255,255,.75); }
.footer-links a:hover { color: white; }
.footer-bottom { min-height: 60px; display: flex; justify-content: space-between; align-items: end; border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px; }
.footer-bottom small, .footer-bottom a { color: rgba(255,255,255,.4); font: 600 9px/1 Arial; letter-spacing: .12em; }

@media (max-width: 1050px) {
  .desktop-nav { display: none; }
  .header-cta { margin-left: auto; }
  .hero-note { display: none; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .workflow { grid-template-columns: 1fr; border-bottom: 0; }
  .workflow li { min-height: 120px; display: grid; grid-template-columns: 60px 1fr; align-items: center; border-right: 0; border-bottom: 1px solid var(--line); }
  .workflow li > div { margin-top: 0; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 40px, 1180px); }
  .section-pad { padding: 88px 0; }
  .header-inner { height: 74px; }
  .brand-mark { width: 38px; height: 38px; font-size: 22px; }
  .brand-copy strong { font-size: 21px; }
  .brand-copy small { font-size: 6px; }
  .header-cta { display: none; }
  .mobile-menu { display: block; margin-left: auto; position: relative; }
  .mobile-menu summary { width: 42px; height: 42px; display: grid; place-content: center; gap: 7px; border: 1px solid rgba(255,255,255,.4); list-style: none; cursor: pointer; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu summary span { display: block; width: 19px; height: 1px; background: white; }
  .mobile-menu nav { position: absolute; right: 0; top: 50px; width: 235px; padding: 16px; display: grid; background: white; color: var(--navy); box-shadow: 0 18px 50px rgba(0,0,0,.22); }
  .mobile-menu nav a { padding: 13px 9px; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 700; }
  .mobile-menu nav a:last-child { border: 0; color: var(--blue); }
  .hero { min-height: 800px; }
  .hero-photo { background-position: 64% center; }
  .hero-shade { background: linear-gradient(90deg,rgba(4,22,39,.96),rgba(4,22,39,.58)),linear-gradient(0deg,rgba(4,22,39,.9),transparent 60%); }
  .hero-inner { min-height: 670px; padding-top: 124px; justify-content: center; }
  .hero-copy { padding-bottom: 35px; }
  .hero h1 { font-size: clamp(38px,11vw,54px); line-height: 1.33; }
  .hero-lead { font-size: 14px; line-height: 1.9; }
  .desktop-only { display: none; }
  .hero-actions { align-items: stretch; flex-direction: column; max-width: 280px; }
  .button { min-height: 54px; }
  .hero-capabilities { min-height: 130px; }
  .capability-row { min-height: 130px; }
  .capability-row > div { grid-template-columns: 1fr; grid-template-rows: auto auto auto; padding: 18px 10px; text-align: center; }
  .capability-row span { grid-row: auto; }
  .capability-row strong { font-size: 12px; margin-top: 9px; }
  .capability-row small { display: none; }
  .intro-layout, .strengths-lead, .deliverables-layout, .faq-layout { grid-template-columns: 1fr; gap: 48px; }
  .sticky-heading, .deliverable-copy { position: static; }
  .intro-content { padding-top: 0; }
  .intro-content .large-copy { font-size: 19px; }
  .challenge-grid { margin-top: 38px; }
  .challenge-grid article { min-height: 150px; padding: 22px; }
  .challenge-grid h3 { margin-top: 30px; font-size: 15px; }
  .section-heading h2, .deliverable-copy h2 { font-size: 37px; }
  .section-heading.centered { margin-bottom: 48px; text-align: left; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .phase-line { margin-bottom: 40px; }
  .strength-grid { grid-template-columns: 1fr; }
  .strength-grid article, .strength-grid article.featured { min-height: 320px; transform: none; }
  .strength-grid h3 { margin-top: 60px; }
  .deliverable-list div { grid-template-columns: 44px 1fr; }
  .faq-layout { gap: 35px; }
  .faq-list summary { padding-right: 36px; font-size: 14px; line-height: 1.6; }
  .faq-list details > p { margin-left: 0; margin-right: 20px; }
  .contact-band { min-height: 550px; }
  .contact-inner h2 { font-size: 37px; }
  .button.white { min-width: 0; width: 100%; gap: 20px; }
  .footer-main { flex-direction: column; }
  .footer-links { grid-template-columns: 1fr; gap: 0; }
  .footer-links a { padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .footer-bottom { align-items: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}
