/* Homepage concept trial — 2026-08-19
   Inspired by the Survate Experience System mood board.
   Scoped to index.html so no other page is affected. */

.home-brand-concept {
  --home-navy: #0a182e;
  --home-navy-soft: #153247;
  --home-ivory: #f4f2ec;
  --home-ivory-deep: #eae7df;
  --home-stone: #8b949e;
  --home-sage: #6d8a7a;
  --home-gold: #c7a45a;
  --home-ink: #243548;
  --home-muted: #536473;
  --home-gold-text: #806223;
  --home-line: rgba(10, 24, 46, .14);
  color: var(--home-ink);
  background: var(--home-ivory);
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: .012em;
}

/* Typography system: Japanese is set in Noto Sans JP, while labels and
   numerals use Inter to match the brand-board's quiet, technical tone. */
.home-brand-concept :where(h1, h2, h3, .button, .site-nav, .footer-nav) {
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
}
.home-brand-concept :where(h1, h2, h3) {
  color: var(--home-navy);
  font-weight: 700;
  text-wrap: balance;
}
.home-brand-concept h2 {
  font-size: clamp(2rem, 4.2vw, 3.45rem);
  line-height: 1.3;
  letter-spacing: -.035em;
}
.home-brand-concept h3 {
  line-height: 1.5;
  letter-spacing: -.012em;
}
.home-brand-concept :where(p, li, dd) {
  color: var(--home-muted);
  font-weight: 400;
}
.home-brand-concept :where(.eyebrow, .service-kicker, .card-number, .timeline li > span, .news-item time, .home-intro-photo figcaption) {
  font-family: Inter, "Noto Sans JP", sans-serif;
  font-weight: 700;
  letter-spacing: .2em;
}
.home-brand-concept :where(.button, .site-nav a) {
  font-weight: 600;
  letter-spacing: .045em;
}

/* A faint connection pattern runs through the entire page as a brand texture. */
.home-brand-concept::before {
  position: fixed;
  inset: 0;
  z-index: 1200;
  pointer-events: none;
  content: "";
  background: url("../img/home-connection-pattern.svg") center top / min(920px, 92vw) auto repeat-y;
  opacity: .07;
}

.home-brand-concept .container {
  width: min(1180px, calc(100% - 48px));
}

.home-brand-concept .site-header,
.home-brand-concept .site-header.is-scrolled {
  background: rgba(244, 242, 236, .93);
  border-bottom: 1px solid var(--home-line);
  box-shadow: none;
  backdrop-filter: blur(18px);
}

.home-brand-concept .header-inner { min-height: 82px; }

.home-brand-concept .brand {
  display: grid;
  gap: 1px;
  min-width: 0;
  padding: 0;
  color: var(--home-navy);
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  line-height: 1;
}

.home-brand-concept .brand img {
  width: min(270px, 34vw);
  max-height: 52px;
  object-fit: contain;
  object-position: left center;
}

.home-brand-concept .nav-toggle {
  color: var(--home-navy);
  background: #fff;
  border-color: var(--home-line);
  box-shadow: none !important;
}
.home-brand-concept .nav-toggle span { background: var(--home-navy); }
.home-brand-concept .nav-toggle:focus-visible {
  outline: 3px solid rgba(199, 164, 90, .48);
  outline-offset: 3px;
}

.home-brand-concept .brand-wordmark {
  font-family: Inter, Arial, sans-serif;
  font-size: 1.42rem;
  font-weight: 700;
  letter-spacing: .28em;
}

.home-brand-concept .brand-tagline {
  color: var(--home-muted);
  font-size: .58rem;
  font-weight: 700;
  letter-spacing: .34em;
}

.home-brand-concept .site-nav { gap: 4px; }
.home-brand-concept .site-nav a {
  color: var(--home-navy);
  font-size: .84rem;
  letter-spacing: .04em;
}
.home-brand-concept .site-nav a:hover {
  color: var(--home-navy);
  background: rgba(109, 138, 122, .12);
}
.home-brand-concept .site-nav .nav-cta {
  color: #fff;
  background: var(--home-navy);
  border: 1px solid var(--home-navy);
  box-shadow: none;
}
.home-brand-concept .site-nav .nav-cta:hover {
  color: #fff;
  background: var(--home-navy-soft);
  border-color: var(--home-navy-soft);
}

.home-brand-concept .hero {
  position: relative;
  min-height: 680px;
  padding: 118px 0 70px;
  color: #fff;
  background: var(--home-navy);
  isolation: isolate;
}

.home-brand-concept .hero::before {
  inset: 0;
  z-index: -1;
  width: auto;
  height: auto;
  background: linear-gradient(90deg, rgba(5,16,31,.9) 0%, rgba(5,16,31,.78) 47%, rgba(5,16,31,.46) 100%);
  border-radius: 0;
  filter: none;
}
.home-brand-concept .hero::after {
  inset: 0;
  z-index: -1;
  width: auto;
  height: auto;
  background: url("../img/home-connection-pattern.svg") 82% center / min(760px, 64vw) auto no-repeat;
  border-radius: 0;
  filter: none;
  opacity: .18;
}
.home-brand-concept .hero-bg { display: none; }
.home-brand-concept .hero-video-bg {
  display: block;
  position: absolute;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  background: var(--home-navy);
}
.home-brand-concept .hero-video-bg iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: max(118vw, 210vh);
  height: max(66.4vw, 118vh);
  transform: translate(-50%, -50%);
  border: 0;
  pointer-events: none;
}

.home-brand-concept .hero-grid {
  position: relative;
  z-index: 2;
  grid-template-columns: minmax(0, 1.08fr) minmax(400px, .92fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
  padding: 0;
}

.home-brand-concept .hero-copy { max-width: 680px; }

.home-brand-concept .hero .eyebrow,
.home-brand-concept .section-heading .eyebrow,
.home-brand-concept .service-kicker {
  color: var(--home-gold-text);
  font-size: .78rem;
  letter-spacing: .22em;
}
.home-brand-concept .hero .eyebrow { color: #efd89d; }

.home-brand-concept .hero h1 {
  max-width: 720px;
  margin: 18px 0 24px;
  color: #fff;
  font-size: clamp(2.7rem, 4vw, 4rem);
  font-weight: 650;
  line-height: 1.18;
  letter-spacing: -.045em;
  text-shadow: 0 3px 24px rgba(0,0,0,.24);
}

.home-brand-concept .hero h1 span {
  display: block;
  white-space: nowrap;
}

.home-brand-concept .hero-statement {
  margin-bottom: 14px;
  color: #efd89d;
  font-family: "Noto Sans JP", "Yu Gothic", sans-serif;
  font-size: clamp(1.12rem, 1.7vw, 1.42rem);
  font-weight: 700;
  letter-spacing: .04em;
}

.home-brand-concept .hero-lead {
  max-width: 610px;
  color: rgba(255,255,255,.86);
  font-size: clamp(1rem, 1.4vw, 1.16rem);
  line-height: 2;
  text-shadow: 0 2px 14px rgba(0,0,0,.28);
}

.home-brand-concept .hero-actions { margin-top: 32px; }
.home-brand-concept .button {
  min-height: 52px;
  padding-inline: 26px;
  border-radius: 6px;
  box-shadow: none;
  letter-spacing: .03em;
}
.home-brand-concept .button-primary {
  color: var(--home-navy);
  background: #fff;
  border-color: #fff;
}
.home-brand-concept .button-primary:hover {
  color: var(--home-navy);
  background: var(--home-ivory);
  border-color: var(--home-ivory);
  transform: translateY(-2px);
}
.home-brand-concept .button-secondary {
  color: #fff;
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.52);
}
.home-brand-concept .button-secondary:hover {
  color: #fff;
  background: rgba(255,255,255,.16);
  border-color: #fff;
}

.home-brand-concept .hero-points {
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 30px;
  color: rgba(255,255,255,.82);
}
.home-brand-concept .hero-points li {
  min-height: 0;
  padding: 2px 0 2px 28px;
  color: rgba(255,255,255,.82);
  border: 0;
  background: transparent;
  border-radius: 0;
  text-shadow: none;
}
.home-brand-concept .hero-points li::before {
  left: 0;
  top: 2px;
  width: auto;
  height: auto;
  color: var(--home-gold);
  background: transparent;
  border-radius: 0;
  content: "—";
}

.home-brand-concept .hero-visual {
  position: relative;
  min-height: 500px;
  display: grid;
  place-items: center;
}
.home-brand-concept .hero-visual img {
  width: min(100%, 610px);
  filter: brightness(1.45) saturate(.7) drop-shadow(0 24px 42px rgba(0,0,0,.18));
  opacity: .72;
}
.home-brand-concept .hero-visual-caption {
  position: absolute;
  right: 2%;
  bottom: 8%;
  width: min(290px, 70%);
  padding: 20px 22px;
  color: #fff;
  background: rgba(10, 24, 46, .92);
  border-left: 3px solid var(--home-gold);
  box-shadow: 0 18px 38px rgba(10, 24, 46, .18);
}
.home-brand-concept .hero-visual-caption strong,
.home-brand-concept .hero-visual-caption span { display: block; }
.home-brand-concept .hero-visual-caption strong {
  margin-bottom: 6px;
  font-size: 1rem;
  letter-spacing: .08em;
}
.home-brand-concept .hero-visual-caption span {
  color: rgba(255,255,255,.72);
  font-size: .78rem;
  line-height: 1.7;
}

.home-brand-concept .trust-band {
  background: #fff;
  border-color: var(--home-line);
}
.home-brand-concept .trust-grid {
  min-height: 118px;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 0;
}
.home-brand-concept .trust-grid > p {
  min-height: 64px;
  justify-content: center;
  padding: 20px 30px;
  color: var(--home-navy);
  border-left: 1px solid var(--home-line);
  text-align: center;
}
.home-brand-concept .trust-grid > p:first-child { border-left: 0; }
.home-brand-concept .trust-grid > p::before { background: var(--home-gold); }
.home-brand-concept .trust-partner img {
  max-width: 98px;
  padding: 8px;
  background: #fff;
  border-radius: 6px;
}

.home-brand-concept .section { padding-block: clamp(82px, 9vw, 128px); }
.home-brand-concept .section-heading h2,
.home-brand-concept .intro h2 {
  color: var(--home-navy);
  font-weight: 700;
  letter-spacing: -.035em;
}
.home-brand-concept .section-heading > p:not(.eyebrow),
.home-brand-concept .intro-text { color: var(--home-muted); }

.home-brand-concept .intro { background: #fff; }
.home-brand-concept .home-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(360px, 1.08fr);
  gap: clamp(50px, 8vw, 110px);
  align-items: center;
}
.home-brand-concept .home-intro-copy { display: grid; gap: 30px; }
.home-brand-concept .home-intro-photo {
  position: relative;
  min-height: 460px;
  margin: 0;
  overflow: hidden;
  border-radius: 2px 90px 2px 2px;
}
.home-brand-concept .home-intro-photo::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(135deg, rgba(10,24,46,.04), rgba(109,138,122,.18));
  pointer-events: none;
}
.home-brand-concept .home-intro-photo img {
  width: 100%;
  height: 100%;
  min-height: 460px;
  object-fit: cover;
}
.home-brand-concept .home-intro-photo figcaption {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  padding: 14px 20px;
  color: #fff;
  background: var(--home-navy);
  font-size: .75rem;
  letter-spacing: .12em;
}

.home-brand-concept .intro-text {
  border-left-color: var(--home-gold);
  background: linear-gradient(90deg, rgba(244,242,236,.72), #fff);
}

.home-brand-concept .section-muted { background: var(--home-ivory); }
.home-brand-concept .feature-card,
.home-brand-concept .service-card,
.home-brand-concept .news-item {
  border: 1px solid var(--home-line);
  border-radius: 2px;
  background: rgba(255,255,255,.74);
  box-shadow: none;
}
.home-brand-concept .feature-card {
  min-height: 300px;
  padding: 34px 30px;
}
.home-brand-concept .feature-card::before { display: none; }
.home-brand-concept .feature-card .card-number {
  color: var(--home-gold-text);
  background: transparent;
  font-family: Inter, sans-serif;
  font-size: .82rem;
  letter-spacing: .18em;
}
.home-brand-concept .feature-card h3,
.home-brand-concept .service-card h3,
.home-brand-concept .news-item h3 { color: var(--home-navy); }
.home-brand-concept .feature-card p,
.home-brand-concept .service-card p,
.home-brand-concept .news-item p { color: var(--home-muted); }

.home-brand-concept #services { background: #fff; }
.home-brand-concept .service-list { gap: 24px; }
.home-brand-concept .service-card { padding: 34px; }
.home-brand-concept .service-card-main {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--home-navy);
  border-color: var(--home-navy);
}
.home-brand-concept .service-card-main::after {
  position: absolute;
  right: -90px;
  bottom: -130px;
  width: 380px;
  height: 380px;
  content: "";
  background: url("../img/home-connection-pattern.svg") center / contain no-repeat;
  opacity: .34;
}
.home-brand-concept .service-card-main > * { position: relative; z-index: 1; }
.home-brand-concept .service-card-main h3,
.home-brand-concept .service-card-main p,
.home-brand-concept .service-card-main li { color: #fff; }
.home-brand-concept .service-card-main .service-kicker,
.home-brand-concept .service-card-main .text-link { color: #eed9a4; }
.home-brand-concept .service-card-main .text-link::after,
.home-brand-concept .text-link::after { content: " →"; }
.home-brand-concept .text-link {
  color: var(--home-gold-text);
  font-weight: 700;
  text-decoration-color: rgba(199,164,90,.55);
}
.home-brand-concept .service-subgrid { gap: 24px; }
.home-brand-concept .service-subgrid .service-card { min-height: 270px; }

.home-brand-concept .section-dark {
  background:
    radial-gradient(circle at 82% 25%, rgba(109,138,122,.24) 0 180px, transparent 181px),
    radial-gradient(circle at 12% 95%, rgba(199,164,90,.13) 0 210px, transparent 211px),
    var(--home-navy);
}
.home-brand-concept .section-dark .section-heading h2 { color: #fff; }
.home-brand-concept .section-dark .section-heading > p:not(.eyebrow) { color: rgba(255,255,255,.72); }
.home-brand-concept .problem-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 2px;
  box-shadow: none;
}
.home-brand-concept .problem-card h3 { color: #fff; }
.home-brand-concept .problem-card p { color: rgba(255,255,255,.68); }

.home-brand-concept .process { background: var(--home-ivory); }
.home-brand-concept .timeline::before { background: var(--home-line); }
.home-brand-concept .timeline li {
  border-radius: 2px;
  border-color: var(--home-line);
  box-shadow: none;
}
.home-brand-concept .timeline li > span {
  color: var(--home-gold-text);
  background: transparent;
  border: 1px solid rgba(199,164,90,.5);
}

.home-brand-concept .recruit-section {
  background: linear-gradient(120deg, #dfe7df 0%, #f4f2ec 62%);
}
.home-brand-concept .recruit-copy h2 { color: var(--home-navy); }
.home-brand-concept .recruit-panel {
  color: #fff;
  background: var(--home-navy-soft);
  border-radius: 2px 70px 2px 2px;
  box-shadow: none;
}
.home-brand-concept .recruit-panel::before { background: rgba(199,164,90,.25); }
.home-brand-concept .recruit-panel h3 { color: #fff !important; }
.home-brand-concept .recruit-panel li {
  color: var(--home-navy) !important;
  background: rgba(255,255,255,.94);
  border-color: rgba(255,255,255,.26);
}
.home-brand-concept .recruit-panel li::before { background: var(--home-gold); }
.home-brand-concept .recruit-panel p { color: rgba(255,255,255,.74) !important; }
.home-brand-concept .recruit-facts div {
  border-color: rgba(10,24,46,.14);
  border-radius: 2px;
  background: rgba(255,255,255,.6);
}

.home-brand-concept .news-section { background: #fff; }
.home-brand-concept .news-list { gap: 0; }
.home-brand-concept .news-item {
  padding: 28px 10px;
  border-width: 1px 0 0;
  background: transparent;
}
.home-brand-concept .news-item:last-child { border-bottom: 1px solid var(--home-line); }
.home-brand-concept .news-item time { color: var(--home-gold-text); }
.home-brand-concept .news-item a:hover { color: var(--home-gold-text); }

.home-brand-concept .cta-section {
  padding-block: 90px;
  background: var(--home-ivory);
}
.home-brand-concept .cta-box {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 7vw, 82px);
  color: #fff;
  background: var(--home-navy);
  border: 0;
  border-radius: 2px 80px 2px 2px;
  box-shadow: none;
}
.home-brand-concept .cta-box::after {
  position: absolute;
  right: -80px;
  bottom: -150px;
  width: 450px;
  height: 450px;
  content: "";
  background: url("../img/home-connection-pattern.svg") center / contain no-repeat;
  opacity: .3;
}
.home-brand-concept .cta-box > * { position: relative; z-index: 1; }
.home-brand-concept .cta-box .eyebrow { color: #eed9a4; }
.home-brand-concept .cta-box h2 {
  max-width: 760px;
  margin-bottom: 18px;
  color: #fff;
  font-size: clamp(2rem, 3.6vw, 3.45rem);
  line-height: 1.28;
  letter-spacing: -.035em;
  text-shadow: 0 3px 22px rgba(0,0,0,.24);
}
.home-brand-concept .cta-box > div > p:not(.eyebrow) {
  max-width: 660px;
  color: rgba(255,255,255,.84);
  font-size: clamp(1rem, 1.25vw, 1.12rem);
  line-height: 1.9;
}
.home-brand-concept .cta-box .button-light {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-width: 224px;
  min-height: 62px;
  padding: 10px 12px 10px 26px;
  color: var(--home-navy);
  background: var(--home-gold);
  border: 1px solid var(--home-gold);
  border-radius: 999px;
  box-shadow: 0 16px 34px rgba(0,0,0,.18);
  white-space: nowrap;
}
.home-brand-concept .cta-box .button-light::after {
  display: grid;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #fff;
  background: var(--home-navy);
  border-radius: 50%;
  content: "→";
  font-family: Inter, sans-serif;
  font-size: 1rem;
  transition: transform .2s ease, background-color .2s ease;
}
.home-brand-concept .cta-box .button-light:hover {
  color: var(--home-navy);
  background: #d8bc7a;
  border-color: #d8bc7a;
  transform: translateY(-2px);
}
.home-brand-concept .cta-box .button-light:hover::after { transform: translateX(3px); }

.home-brand-concept .site-footer {
  color: rgba(255, 255, 255, .86) !important;
  background: #071322 !important;
  border-top: 3px solid var(--home-gold);
}
.home-brand-concept .site-footer :where(p, a, li, small) {
  color: rgba(255, 255, 255, .86) !important;
}
.home-brand-concept .site-footer .footer-brand {
  color: #fff !important;
  letter-spacing: .08em;
}
.home-brand-concept .site-footer .footer-nav a:hover,
.home-brand-concept .site-footer .footer-nav a:focus-visible {
  color: #eed9a4 !important;
}

@media (max-width: 980px) {
  .home-brand-concept .hero-grid,
  .home-brand-concept .home-intro-grid { grid-template-columns: 1fr; }
  .home-brand-concept .hero { padding-top: 120px; }
  .home-brand-concept .hero-visual { min-height: 440px; }
  .home-brand-concept .hero-visual img { width: min(82vw, 570px); }
  .home-brand-concept .home-intro-photo { order: -1; min-height: 380px; }
  .home-brand-concept .home-intro-photo img { min-height: 380px; }
  .home-brand-concept .trust-grid { grid-template-columns: 1fr; padding-block: 18px; }
  .home-brand-concept .trust-grid > p { border-left: 0; border-top: 1px solid var(--home-line); }
  .home-brand-concept .trust-grid > p:first-child { border-top: 0; }
}

@media (max-width: 760px) {
  .home-brand-concept .container { width: min(100% - 32px, 1180px); }
  .home-brand-concept .header-inner { min-height: 70px; }
  .home-brand-concept .brand img { width: min(178px, 48vw); max-height: 42px; }
  .home-brand-concept .site-nav { background: rgba(244,242,236,.98); border-color: var(--home-line); }
  .home-brand-concept .hero { min-height: auto; padding: 105px 0 64px; }
  .home-brand-concept .hero-video-bg iframe {
    top: 40%;
    width: max(140vw, 249vh);
    height: max(78.75vw, 140vh);
  }
  .home-brand-concept .hero h1 { font-size: clamp(1.9rem, 8vw, 2.5rem); }
  .home-brand-concept .hero h1 span { white-space: nowrap; }
  .home-brand-concept .hero-actions { align-items: stretch; }
  .home-brand-concept .hero-actions .button { width: 100%; }
  .home-brand-concept .hero-visual { min-height: 340px; }
  .home-brand-concept .hero-visual-caption { right: 0; bottom: 0; width: 82%; }
  .home-brand-concept .home-intro-photo,
  .home-brand-concept .home-intro-photo img { min-height: 300px; }
  .home-brand-concept .feature-card { min-height: auto; }
  .home-brand-concept .cta-box { border-radius: 2px 42px 2px 2px; }
  .home-brand-concept .cta-box .button-light { width: 100%; min-width: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .home-brand-concept .hero-visual img { filter: none; }
}