/* ============================================================
   SSS Inc. — Design System
   建築鉄骨の専門企業 | Premium Structural Steel
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

/* ── Custom Properties ── */
:root {
  --bg:           #09090b;
  --surface:      #111118;
  --surface-2:    #1a1a24;
  --surface-3:    #22222e;
  --border:       rgba(255,255,255,0.07);
  --border-2:     rgba(255,255,255,0.12);
  --border-gold:  rgba(200,169,110,0.3);

  --text:         #f4f4f5;
  --text-muted:   #71717a;
  --text-subtle:  #3f3f46;

  --gold:         #c8a96e;
  --gold-light:   #deb974;
  --gold-dim:     rgba(200,169,110,0.15);
  --steel:        #8892a4;

  --font-jp: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;

  --ease-out: cubic-bezier(0.22,1,0.36,1);
  --ease-in-out: cubic-bezier(0.65,0,0.35,1);

  --nav-h: 80px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-jp);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ── Custom Cursor ── */
.cursor {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
}
.cursor-dot {
  width: 8px; height: 8px;
  background: var(--gold);
  border-radius: 50%;
  transform: translate(-50%,-50%);
  transition: width .2s, height .2s;
}
.cursor-ring {
  width: 40px; height: 40px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  transform: translate(-50%,-50%);
  transition: width .4s var(--ease-out), height .4s var(--ease-out), opacity .3s;
  opacity: 0.6;
}
body:hover .cursor-dot { width: 8px; height: 8px; }
a:hover ~ .cursor .cursor-ring,
button:hover ~ .cursor .cursor-ring { width: 60px; height: 60px; }

/* ── Typography ── */
.en { font-family: var(--font-en); }

h1,h2,h3,h4,h5 { line-height: 1.2; font-weight: 700; }

.label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ── Layout ── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.container--md { max-width: 960px; }
.container--sm { max-width: 720px; }

section { position: relative; }

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background .4s, backdrop-filter .4s, border-color .4s;
}
.nav.scrolled {
  background: rgba(9,9,11,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav__logo-mark {
  width: 36px; height: 36px;
  background: var(--gold);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-weight: 900;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--bg);
}
.nav__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.nav__logo-name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
}
.nav__logo-sub {
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}
.nav__menu {
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav__link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease-out);
}
.nav__link:hover, .nav__link.active { color: var(--text); }
.nav__link:hover::after, .nav__link.active::after { transform: scaleX(1); }
.nav__link--cta {
  padding: 8px 20px;
  border: 1px solid var(--border-gold);
  border-radius: 4px;
  color: var(--gold) !important;
  font-size: 0.75rem;
  transition: background .3s, color .3s;
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover {
  background: var(--gold);
  color: var(--bg) !important;
}
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--text);
  transition: transform .3s, opacity .3s;
}
.nav__toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav overlay */
.nav__overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s;
}
.nav__overlay.open { opacity: 1; pointer-events: all; }
.nav__overlay .nav__link {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg);
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 70% 50%, rgba(200,169,110,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 10% 80%, rgba(136,146,164,0.05) 0%, transparent 50%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 30%, transparent 80%);
}
.hero__noise {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px;
}
.hero__content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  padding-top: var(--nav-h);
}
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}
.hero__eyebrow-line {
  width: 48px;
  height: 1px;
  background: var(--gold);
}
.hero__overline {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
}
.hero__title {
  font-family: var(--font-en);
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero__title-jp {
  display: block;
  font-family: var(--font-jp);
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-top: 16px;
}
.hero__title .accent { color: var(--gold); }
.hero__desc {
  max-width: 520px;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-muted);
  margin-bottom: 48px;
}
.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-subtle);
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}
.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--gold));
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* Large decorative text */
.hero__deco {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-en);
  font-size: clamp(8rem, 20vw, 18rem);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.04);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  z-index: 0;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: all .3s var(--ease-out);
  cursor: pointer;
}
.btn--primary {
  background: var(--gold);
  color: var(--bg);
}
.btn--primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(200,169,110,0.25);
}
.btn--outline {
  border: 1px solid var(--border-2);
  color: var(--text);
}
.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.btn-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gold);
  transition: gap .3s;
}
.btn-arrow:hover { gap: 14px; }
.btn-arrow svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

/* ── Section Header ── */
.section-header {
  margin-bottom: 64px;
}
.section-header--center { text-align: center; }
.section-title {
  font-family: var(--font-en);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-top: 12px;
  margin-bottom: 16px;
}
.section-title .jp {
  display: block;
  font-family: var(--font-jp);
  font-size: 0.4em;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-top: 8px;
}
.section-desc {
  max-width: 560px;
  color: var(--text-muted);
  line-height: 1.9;
  font-size: 0.95rem;
}
.section-header--center .section-desc { margin: 0 auto; }

/* ── Page Hero (inner pages) ── */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 80px) 0 80px;
  overflow: hidden;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.page-hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 0% 50%, rgba(200,169,110,0.05) 0%, transparent 60%);
}
.page-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.page-hero__num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 16px;
}
.page-hero__title {
  font-family: var(--font-en);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 16px;
}
.page-hero__title-jp {
  font-family: var(--font-jp);
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  font-size: 0.75rem;
  color: var(--text-subtle);
}
.breadcrumb a { color: var(--text-muted); transition: color .3s; }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb span { color: var(--text-muted); }

/* ── Numbers / Stats ── */
.stats {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.stat {
  padding: 48px 40px;
  border-right: 1px solid var(--border);
  position: relative;
}
.stat:last-child { border-right: none; }
.stat__num {
  font-family: var(--font-en);
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--gold);
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}
.stat__unit {
  font-size: 0.4em;
  font-weight: 600;
  color: var(--text-muted);
}
.stat__label {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ── Service Cards ── */
.services {
  padding: 120px 0;
}
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 64px;
}
.service-card {
  background: var(--surface);
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
  transition: background .4s;
  border: 1px solid var(--border);
}
.service-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease-out);
}
.service-card:hover { background: var(--surface-2); }
.service-card:hover::before { transform: scaleX(1); }
.service-card__num {
  font-family: var(--font-en);
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(200,169,110,0.12);
  margin-bottom: 24px;
  transition: color .4s;
}
.service-card:hover .service-card__num { color: rgba(200,169,110,0.2); }
.service-card__icon {
  width: 40px; height: 40px;
  margin-bottom: 24px;
  color: var(--gold);
}
.service-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 16px;
}
.service-card__text {
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  transition: gap .3s;
}
.service-card__link:hover { gap: 14px; }

/* ── News ── */
.news { padding: 120px 0; background: var(--surface); }
.news__list { margin-top: 48px; }
.news-item {
  display: flex;
  align-items: baseline;
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left .3s;
}
.news-item:hover { padding-left: 8px; }
.news-item__date {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 100px;
}
.news-item__cat {
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 3px 10px;
  border-radius: 2px;
  white-space: nowrap;
}
.news-item__title {
  font-size: 0.9rem;
  color: var(--text);
  flex: 1;
  transition: color .3s;
}
.news-item:hover .news-item__title { color: var(--gold); }

/* ── Interview teaser ── */
.interview-tease {
  padding: 120px 0;
  overflow: hidden;
}
.interview-tease__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.interview-tease__cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.person-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: transform .4s var(--ease-out), box-shadow .4s;
}
.person-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.4);
}
.person-card__img {
  aspect-ratio: 3/4;
  background: var(--surface-2);
  overflow: hidden;
  position: relative;
}
.person-card__img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.7) 100%);
}
.person-card__avatar {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 3rem;
  font-weight: 900;
  color: rgba(200,169,110,0.3);
  background: linear-gradient(135deg, var(--surface-2), var(--surface-3));
}
.person-card__body {
  padding: 16px;
}
.person-card__role {
  font-size: 0.7rem;
  color: var(--gold);
  margin-bottom: 4px;
  letter-spacing: 0.05em;
}
.person-card__name {
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 700;
}

/* ── Recruit CTA ── */
.recruit-cta {
  padding: 120px 0;
  background: var(--surface);
  position: relative;
  overflow: hidden;
}
.recruit-cta__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 100% at 100% 50%, rgba(200,169,110,0.06) 0%, transparent 60%);
}
.recruit-cta__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 48px;
}
.recruit-cta__title {
  font-family: var(--font-en);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-top: 12px;
  margin-bottom: 16px;
}
.recruit-cta__text {
  max-width: 480px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.9;
}

/* ── Overseas ── */
.overseas {
  padding: 120px 0;
  overflow: hidden;
}
.overseas__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin-top: 64px;
}
.overseas-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 48px;
  position: relative;
  overflow: hidden;
  transition: background .4s;
}
.overseas-card:hover { background: var(--surface-2); }
.overseas-card__flag {
  font-size: 2rem;
  margin-bottom: 16px;
}
.overseas-card__country {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}
.overseas-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.overseas-card__text {
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--text-muted);
}

/* ── Company Table ── */
.company-table {
  width: 100%;
  border-collapse: collapse;
}
.company-table tr {
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.company-table tr:hover { background: rgba(255,255,255,0.02); }
.company-table th {
  width: 200px;
  padding: 20px 24px;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.05em;
  vertical-align: top;
  white-space: nowrap;
}
.company-table td {
  padding: 20px 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ── CEO Message ── */
.ceo-message {
  padding: 120px 0;
  background: var(--surface);
}
.ceo-message__grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: start;
}
.ceo-message__portrait {
  aspect-ratio: 3/4;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ceo-message__portrait-inner {
  font-family: var(--font-en);
  font-size: 6rem;
  font-weight: 900;
  color: rgba(200,169,110,0.2);
}
.ceo-message__body {}
.ceo-message__quote {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 32px;
  border-left: 3px solid var(--gold);
  padding-left: 24px;
}
.ceo-message__text {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.ceo-message__sig {
  margin-top: 40px;
}
.ceo-message__sig-role {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.ceo-message__sig-name {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* ── Certifications ── */
.certifications { padding: 120px 0; }
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 48px;
}
.cert-item {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  transition: background .3s, transform .3s;
}
.cert-item:hover { background: var(--surface-2); transform: translateY(-4px); }
.cert-item__icon {
  width: 40px; height: 40px;
  margin: 0 auto 16px;
  color: var(--gold);
}
.cert-item__name {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.5;
}
.cert-item__count {
  font-family: var(--font-en);
  font-size: 0.75rem;
  color: var(--gold);
}

/* ── Business detail ── */
.business-section { padding: 120px 0; }
.business-section:nth-child(even) { background: var(--surface); }
.business-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.business-layout--reverse { direction: rtl; }
.business-layout--reverse > * { direction: ltr; }
.business-visual {
  aspect-ratio: 4/3;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.business-visual__inner {
  font-family: var(--font-en);
  font-size: 8rem;
  font-weight: 900;
  color: rgba(200,169,110,0.08);
}
.business-num {
  font-family: var(--font-en);
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(200,169,110,0.15);
  margin-bottom: 8px;
}
.business-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 4px 12px;
  border-radius: 2px;
  margin-bottom: 20px;
}
.business-title {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
}
.business-text {
  font-size: 0.9rem;
  line-height: 2;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.business-list {
  margin-top: 24px;
}
.business-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-muted);
}
.business-list li::before {
  content: '';
  width: 6px; height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

/* ── Project History ── */
.project-history { padding: 120px 0; background: var(--surface); }
.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 48px;
}
.history-item {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: 4px;
  transition: border-color .3s;
}
.history-item:hover { border-color: var(--border-gold); }
.history-item__year {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 8px;
}
.history-item__name {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.history-item__detail {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Interview ── */
.interview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: 64px;
}
.interview-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: transform .4s var(--ease-out), box-shadow .4s;
}
.interview-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}
.interview-card__header {
  padding: 32px;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  gap: 24px;
}
.interview-card__avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--surface-3);
  border: 2px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--gold);
  flex-shrink: 0;
}
.interview-card__meta {}
.interview-card__role {
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.interview-card__name {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 700;
}
.interview-card__body { padding: 32px; }
.interview-q {
  margin-bottom: 24px;
}
.interview-q__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}
.interview-q__q::before {
  content: 'Q';
  font-family: var(--font-en);
  font-weight: 900;
  font-size: 0.8rem;
  color: var(--gold);
  background: var(--gold-dim);
  width: 24px; height: 24px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.interview-q__q-text {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
}
.interview-q__a {
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--text-muted);
  padding-left: 36px;
}

/* ── Recruit ── */
.job-grid {
  display: grid;
  gap: 24px;
  margin-top: 64px;
}
.job-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color .3s;
}
.job-card:hover { border-color: var(--border-gold); }
.job-card--closed { opacity: 0.4; pointer-events: none; }
.job-card__header {
  padding: 24px 32px;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.job-card__title {
  font-size: 1.1rem;
  font-weight: 700;
}
.job-card__type {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 4px 12px;
  border-radius: 2px;
  white-space: nowrap;
}
.job-card__type--closed {
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
}
.job-card__body {
  padding: 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.job-detail__label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.job-detail__value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}
.job-card__footer {
  padding: 0 32px 24px;
}
.job-card__desc {
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 48px;
}
.benefit-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
}
.benefit-item::before {
  content: '✓';
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--gold);
  width: 20px; height: 20px;
  background: var(--gold-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Contact ── */
.contact-section { padding: 120px 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
}
.contact-info {}
.contact-info__item {
  margin-bottom: 32px;
}
.contact-info__label {
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.contact-info__value {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
}
.contact-info__sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.contact-form {}
.form-group {
  margin-bottom: 24px;
}
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.form-label .req {
  color: var(--gold);
  font-size: 0.7rem;
  margin-left: 6px;
}
.form-input, .form-textarea, .form-select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 4px;
  padding: 14px 18px;
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color .3s, box-shadow .3s;
  outline: none;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(200,169,110,0.1);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-subtle); }
.form-textarea { min-height: 160px; resize: vertical; }
.form-select { appearance: none; cursor: pointer; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Vietnam ── */
.vietnam-hero {
  background: linear-gradient(135deg, #0d1f0d 0%, #09090b 100%);
}
.vietnam-intro { padding: 120px 0; }
.vietnam-intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

/* ── Footer ── */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 80px 0 0;
}
.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--border);
}
.footer__brand {}
.footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.footer__tagline {
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--text-muted);
  max-width: 280px;
  margin-bottom: 24px;
}
.footer__contact-tel {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.footer__contact-hours {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.footer__nav-title {
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}
.footer__nav-list { display: flex; flex-direction: column; gap: 12px; }
.footer__nav-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color .3s, padding-left .3s;
  display: block;
}
.footer__nav-link:hover { color: var(--text); padding-left: 4px; }
.footer__bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer__copy {
  font-family: var(--font-en);
  font-size: 0.75rem;
  color: var(--text-subtle);
  letter-spacing: 0.05em;
}
.footer__legal {
  display: flex;
  gap: 24px;
}
.footer__legal a {
  font-size: 0.75rem;
  color: var(--text-subtle);
  transition: color .3s;
}
.footer__legal a:hover { color: var(--text-muted); }

/* ── Reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--left {
  transform: translateX(-32px);
}
.reveal--left.visible {
  transform: translateX(0);
}
.reveal--right {
  transform: translateX(32px);
}
.reveal--right.visible {
  transform: translateX(0);
}
.reveal--scale {
  transform: scale(0.95);
}
.reveal--scale.visible {
  transform: scale(1);
}

/* Stagger delays */
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }
.reveal[data-delay="5"] { transition-delay: .5s; }

/* ── Divider ── */
.divider {
  width: 48px;
  height: 1px;
  background: var(--gold);
  margin: 24px 0;
}
.divider--center { margin: 24px auto; }

/* ── Tags ── */
.tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
  background: var(--gold-dim);
  color: var(--gold);
}

/* ── Map placeholder ── */
.map-block {
  height: 320px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 2px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .nav__menu { display: none; }
  .nav__toggle { display: flex; }
  .services__grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .stats__grid { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid var(--border); }
  .cert-grid { grid-template-columns: repeat(2,1fr); }
  .business-layout { grid-template-columns: 1fr; gap: 40px; }
  .business-layout--reverse { direction: ltr; }
  .job-card__body { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .container { padding: 0 24px; }
  .hero__content { padding: 0 24px; padding-top: var(--nav-h); }
  .page-hero__inner { padding: 0 24px; }
  .hero__deco { display: none; }
  .services__grid { grid-template-columns: 1fr; }
  .overseas__grid { grid-template-columns: 1fr; }
  .interview-tease__grid { grid-template-columns: 1fr; }
  .interview-grid { grid-template-columns: 1fr; }
  .ceo-message__grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .recruit-cta__inner { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .cert-grid { grid-template-columns: 1fr 1fr; }
  .vietnam-intro__grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .job-card__body { grid-template-columns: 1fr; }
  .section-header { margin-bottom: 40px; }
  .company-table th { width: 120px; font-size: 0.75rem; padding: 16px; }
  .company-table td { font-size: 0.85rem; padding: 16px; }
  .nav__inner { padding: 0 24px; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .interview-tease__cards { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
}