/* ============================================================
   TOYO LEBEN - Corporate Website CSS
   Design: Premium Digital / Next-Gen Solution Company
   ============================================================ */

/* ---- Reset & Base ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Primary palette */
  --clr-primary:       #0ea5e9;   /* Sky blue */
  --clr-primary-dark:  #0284c7;
  --clr-primary-glow:  rgba(14,165,233,0.35);
  --clr-accent:        #6366f1;   /* Indigo */
  --clr-accent-glow:   rgba(99,102,241,0.30);

  /* Dark BG palette */
  --clr-bg:            #050b18;
  --clr-bg-2:          #0a1628;
  --clr-bg-card:       rgba(255,255,255,0.04);
  --clr-bg-card-hover: rgba(255,255,255,0.07);

  /* Text */
  --clr-text:          #e2e8f0;
  --clr-text-sub:      #94a3b8;
  --clr-text-muted:    #64748b;
  --clr-white:         #ffffff;

  /* Border */
  --clr-border:        rgba(255,255,255,0.08);
  --clr-border-glow:   rgba(14,165,233,0.3);

  /* Typography */
  --font-base:  'Noto Sans JP', 'Inter', sans-serif;
  --font-en:    'Inter', sans-serif;

  /* Spacing */
  --section-gap: 120px;
  --container-w: 1200px;
  --container-px: 24px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-base);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s, opacity .2s;
}

ul { list-style: none; }

/* ---- Container ---- */
.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* ---- Section Padding ---- */
.section-padding { padding-block: var(--section-gap); }

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--clr-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--clr-white);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform .25s var(--ease-out), box-shadow .25s, background .25s;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff;
  box-shadow: 0 0 24px var(--clr-primary-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--clr-primary-glow), 0 8px 24px rgba(0,0,0,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--clr-white);
  border: 1.5px solid rgba(255,255,255,0.35);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  transform: translateY(-2px);
}

.btn-lg { padding: 16px 40px; font-size: 1rem; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background .35s, backdrop-filter .35s, box-shadow .35s;
}

.site-header.scrolled {
  background: rgba(5,11,24,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1;
}
.logo-en {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  background: linear-gradient(90deg, #fff 60%, var(--clr-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-ja {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--clr-text-sub);
  letter-spacing: 0.06em;
}

/* Nav */
.global-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--clr-text-sub);
  letter-spacing: 0.04em;
  position: relative;
  padding-bottom: 2px;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1.5px;
  background: var(--clr-primary);
  transition: width .25s var(--ease-out);
}
.nav-link:hover { color: var(--clr-white); }
.nav-link:hover::after { width: 100%; }

.nav-cta {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  border: 1.5px solid transparent;
  background-clip: padding-box;
  padding: 8px 20px;
  border-radius: 50px;
  border: 1.5px solid var(--clr-primary);
  color: var(--clr-primary) !important;
  -webkit-text-fill-color: var(--clr-primary);
  font-weight: 600;
  transition: background .25s, color .25s, box-shadow .25s, transform .25s;
}
.nav-cta::after { display: none; }
.nav-cta:hover {
  background: var(--clr-primary) !important;
  color: #fff !important;
  -webkit-text-fill-color: #fff;
  box-shadow: 0 0 20px var(--clr-primary-glow);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(5,11,24,0.97);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s;
}
.mobile-nav.open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  text-align: center;
}
.mobile-nav-link {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--clr-text-sub);
  letter-spacing: 0.08em;
  transition: color .2s;
}
.mobile-nav-link:hover { color: var(--clr-primary); }

/* ============================================================
   HERO
   ============================================================ */
.hero-section {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* BG elements */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
}

.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.orb1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(14,165,233,0.18), transparent 70%);
  top: -150px; left: -100px;
  animation: orbFloat 8s ease-in-out infinite;
}
.orb2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99,102,241,0.18), transparent 70%);
  bottom: -100px; right: -50px;
  animation: orbFloat 10s ease-in-out infinite reverse;
}
.orb3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(14,165,233,0.12), transparent 70%);
  top: 40%; left: 60%;
  animation: orbFloat 12s ease-in-out infinite 2s;
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-30px) scale(1.05); }
}

.hero-particles {
  position: absolute;
  inset: 0;
}

/* Content */
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-top: 100px;
  max-width: 840px;
}

.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--clr-primary);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--clr-white);
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-highlight {
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero-sub {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--clr-text-sub);
  line-height: 1.9;
  margin-bottom: 48px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--clr-text-muted);
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--clr-primary), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(1) translateY(0); opacity: 1; }
  50%       { transform: scaleY(0.6) translateY(8px); opacity: 0.5; }
}

/* ============================================================
   TICKER
   ============================================================ */
.ticker-wrap {
  overflow: hidden;
  background: rgba(14,165,233,0.06);
  border-top: 1px solid var(--clr-border-glow);
  border-bottom: 1px solid var(--clr-border-glow);
  padding: 18px 0;
}

.ticker-track {
  display: flex;
  gap: 40px;
  width: max-content;
  animation: ticker 28s linear infinite;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--clr-primary);
  text-transform: uppercase;
  white-space: nowrap;
}

.ticker-track .sep {
  color: var(--clr-accent);
  opacity: 0.7;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-section { background: var(--clr-bg); }

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text p {
  color: var(--clr-text-sub);
  margin-bottom: 20px;
  font-size: 0.95rem;
  line-height: 1.9;
}
.about-text p:last-child { margin-bottom: 0; }

.about-lead {
  font-size: 1.05rem !important;
  color: var(--clr-text) !important;
  font-weight: 500;
  margin-bottom: 28px !important;
}
.about-lead strong {
  color: var(--clr-primary);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
  transition: background .3s, border-color .3s, transform .3s var(--ease-out);
}
.stat-card:hover {
  background: var(--clr-bg-card-hover);
  border-color: var(--clr-border-glow);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 20px var(--clr-primary-glow);
}

.stat-icon {
  font-size: 1.5rem;
  color: var(--clr-primary);
  margin-bottom: 10px;
}

.stat-num {
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   CONCEPT
   ============================================================ */
.concept-section {
  position: relative;
  background: var(--clr-bg-2);
  overflow: hidden;
}

.concept-bg-deco {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 10% 50%, rgba(99,102,241,0.1), transparent),
    radial-gradient(ellipse 50% 50% at 90% 50%, rgba(14,165,233,0.1), transparent);
  pointer-events: none;
}

.concept-main {
  text-align: center;
  margin-bottom: 48px;
}

.concept-catch {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--clr-white);
  line-height: 1.6;
  letter-spacing: -0.01em;
}

.concept-body {
  max-width: 720px;
  margin: 0 auto 80px;
  text-align: center;
}
.concept-body p {
  color: var(--clr-text-sub);
  font-size: 0.95rem;
  line-height: 1.9;
  margin-bottom: 16px;
}

.concept-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pillar {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: 20px;
  padding: 40px 28px;
  text-align: center;
  transition: border-color .3s, transform .3s var(--ease-out), box-shadow .3s;
  position: relative;
  overflow: hidden;
}
.pillar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,165,233,0.05), transparent);
  opacity: 0;
  transition: opacity .3s;
}
.pillar:hover {
  border-color: var(--clr-border-glow);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 30px var(--clr-primary-glow);
}
.pillar:hover::before { opacity: 1; }

.pillar-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  margin: 0 auto 20px;
  box-shadow: 0 0 24px var(--clr-primary-glow);
}

.pillar-title {
  font-family: var(--font-en);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.pillar-text {
  font-size: 0.85rem;
  color: var(--clr-text-sub);
  line-height: 1.8;
}

/* ============================================================
   MESSAGE
   ============================================================ */
.message-section { background: var(--clr-bg); }

.message-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 80px;
  align-items: start;
}

.message-img-placeholder {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: 20px;
  width: 100%;
  aspect-ratio: 3/4;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--clr-text-muted);
}
.message-img-placeholder i {
  font-size: 4rem;
  color: var(--clr-primary);
  opacity: 0.5;
}
.message-img-placeholder p {
  text-align: center;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--clr-text-sub);
}

.message-quote {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--clr-white);
  line-height: 1.6;
  border-left: 3px solid var(--clr-primary);
  padding-left: 20px;
  margin-bottom: 36px;
  font-style: normal;
}

.message-text p {
  font-size: 0.93rem;
  color: var(--clr-text-sub);
  line-height: 1.9;
  margin-bottom: 18px;
}

.message-sig {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--clr-border);
  font-size: 0.9rem;
  color: var(--clr-text-sub);
  line-height: 1.8;
}
.message-sig strong {
  color: var(--clr-white);
  font-size: 1rem;
}

/* ============================================================
   SERVICE
   ============================================================ */
.service-section {
  position: relative;
  background: var(--clr-bg-2);
  overflow: hidden;
}

.service-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 40% 80% at 0% 50%, rgba(14,165,233,0.08), transparent),
    radial-gradient(ellipse 40% 80% at 100% 50%, rgba(99,102,241,0.08), transparent);
  pointer-events: none;
}

.service-lead {
  text-align: center;
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--clr-text-sub);
  margin-bottom: 64px;
  line-height: 2;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: 20px;
  padding: 44px 36px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, transform .3s var(--ease-out), box-shadow .3s;
}
.service-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease-out);
}
.service-card:hover {
  border-color: var(--clr-border-glow);
  transform: translateY(-6px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.5), 0 0 30px var(--clr-primary-glow);
}
.service-card:hover::after { transform: scaleX(1); }

.service-card-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 12px;
  box-shadow: 0 0 20px var(--clr-primary-glow);
}

.service-card-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--clr-primary);
  margin-bottom: 8px;
}

.service-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 20px;
  line-height: 1.4;
}

.service-card-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--clr-text-sub);
  line-height: 1.6;
}
.service-card-list li i {
  color: var(--clr-primary);
  flex-shrink: 0;
  margin-top: 3px;
  font-size: 0.8rem;
}

.service-footer {
  text-align: center;
  margin-top: 64px;
  padding: 44px 32px;
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border-glow);
  border-radius: 20px;
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  color: var(--clr-text-sub);
  line-height: 2;
}
.service-footer strong {
  color: var(--clr-primary);
}

/* ============================================================
   COMPANY
   ============================================================ */
.company-section { background: var(--clr-bg); }

.company-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}
.company-table tr {
  border-bottom: 1px solid var(--clr-border);
}
.company-table tr:first-child { border-top: 1px solid var(--clr-border); }

.company-table th,
.company-table td {
  padding: 20px 16px;
  font-size: 0.9rem;
  vertical-align: top;
  line-height: 1.8;
}
.company-table th {
  width: 160px;
  color: var(--clr-primary);
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: 0.03em;
}
.company-table td {
  color: var(--clr-text-sub);
}
.company-table td a {
  color: var(--clr-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.company-table td a:hover { color: var(--clr-white); }

.map-placeholder {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: 20px;
  width: 100%;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px;
  text-align: center;
}
.map-placeholder i {
  font-size: 3rem;
  color: var(--clr-primary);
}
.map-placeholder p {
  font-size: 0.9rem;
  color: var(--clr-text-sub);
  line-height: 1.8;
}
.map-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--clr-primary);
  border: 1px solid var(--clr-primary);
  padding: 10px 22px;
  border-radius: 50px;
  transition: background .2s, color .2s;
}
.map-link:hover { background: var(--clr-primary); color: #fff; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section {
  position: relative;
  overflow: hidden;
  background: var(--clr-bg-2);
  text-align: center;
}
.contact-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(14,165,233,0.06), transparent);
}
.contact-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.c-orb1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(14,165,233,0.15), transparent 70%);
  top: -200px; left: -100px;
}
.c-orb2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(99,102,241,0.15), transparent 70%);
  bottom: -150px; right: -50px;
}
.contact-inner {
  position: relative;
  z-index: 1;
}
.contact-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--clr-white);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.contact-sub {
  font-size: 0.95rem;
  color: var(--clr-text-sub);
  line-height: 1.9;
  margin-bottom: 52px;
}
.contact-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.contact-tel {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--clr-white);
  letter-spacing: 0.04em;
  transition: color .2s;
}
.contact-tel i {
  font-size: 1.2rem;
  color: var(--clr-primary);
}
.contact-tel:hover { color: var(--clr-primary); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--clr-bg);
  border-top: 1px solid var(--clr-border);
  padding-top: 64px;
  padding-bottom: 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--clr-border);
  flex-wrap: wrap;
}

.footer-logo-en {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  background: linear-gradient(90deg, #fff, var(--clr-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}
.footer-logo-ja {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--clr-text-sub);
  margin-bottom: 8px;
}
.footer-tagline {
  font-size: 0.72rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
}
.footer-nav a {
  font-size: 0.83rem;
  color: var(--clr-text-muted);
  transition: color .2s;
}
.footer-nav a:hover { color: var(--clr-primary); }

.footer-bottom {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-address {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
}
.footer-copy {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  font-family: var(--font-en);
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 36px; right: 32px;
  z-index: 900;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  border: none;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--clr-primary-glow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity .3s, transform .3s, box-shadow .3s;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  box-shadow: 0 0 40px var(--clr-primary-glow), 0 8px 24px rgba(0,0,0,0.4);
  transform: translateY(-3px);
}

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* stagger children inside a parent with .stagger-children */
.stagger-children .reveal-up:nth-child(1) { transition-delay: 0s; }
.stagger-children .reveal-up:nth-child(2) { transition-delay: .1s; }
.stagger-children .reveal-up:nth-child(3) { transition-delay: .2s; }
.stagger-children .reveal-up:nth-child(4) { transition-delay: .3s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  :root { --section-gap: 96px; }

  .about-layout { grid-template-columns: 1fr; gap: 56px; }
  .about-stats { max-width: 480px; margin: 0 auto; }

  .message-layout { grid-template-columns: 220px 1fr; gap: 48px; }

  .company-layout { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  :root {
    --section-gap: 72px;
    --container-px: 20px;
  }

  /* Nav */
  .global-nav { display: none; }
  .hamburger { display: flex; }

  /* Hero */
  .hero-content { padding-top: 80px; padding-inline: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .pc-br { display: none; }

  /* Concept pillars */
  .concept-pillars { grid-template-columns: 1fr; gap: 20px; }

  /* Message */
  .message-layout { grid-template-columns: 1fr; }
  .message-img-wrap { max-width: 240px; margin: 0 auto; }

  /* Service */
  .service-grid { grid-template-columns: 1fr; }
  .service-card { padding: 32px 24px; }

  /* Company */
  .company-table th { width: 100px; font-size: 0.82rem; }
  .company-table th, .company-table td { padding: 14px 10px; font-size: 0.83rem; }

  /* Contact */
  .contact-tel { font-size: 1.4rem; }

  /* Footer */
  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }

  /* Back to top */
  .back-to-top { bottom: 24px; right: 20px; }
}

@media (max-width: 480px) {
  .about-stats { grid-template-columns: 1fr 1fr; }
}