/* ============================================================
   NextEra LLC Corporate Site
   ============================================================ */
:root {
  --navy-900: #060d1f;
  --navy-800: #0a1630;
  --navy-700: #101f42;
  --blue-600: #1d4ed8;
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --cyan-400: #22d3ee;
  --text-main: #101828;
  --text-sub: #475467;
  --line: #e4e7ec;
  --bg-light: #f7f9fc;
  --white: #ffffff;
  --font-en: '游ゴシック体', YuGothic, '游ゴシック Medium', 'Yu Gothic Medium', '游ゴシック', 'Yu Gothic', 'Noto Sans JP', sans-serif;
  --font-ja: '游ゴシック体', YuGothic, '游ゴシック Medium', 'Yu Gothic Medium', '游ゴシック', 'Yu Gothic', 'Noto Sans JP', sans-serif;
  --header-h: 76px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  font-family: var(--font-ja);
  color: var(--text-main);
  background: var(--white);
  line-height: 1.9;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.pc-only { display: inline; }
.sp-only { display: none; }

/* ---------- reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .9s cubic-bezier(.16,1,.3,1), transform .9s cubic-bezier(.16,1,.3,1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .15s; }
.delay-2 { transition-delay: .3s; }
.delay-3 { transition-delay: .45s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .orb, .marquee-track, .scroll-line::after { animation: none !important; }
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  transition: background .4s, box-shadow .4s, backdrop-filter .4s;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(16,24,40,.06);
}
.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; }
.brand-text {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: .02em;
  color: var(--navy-900);
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.hero-section .brand-text { color: #fff; }
.brand-sub {
  font-family: var(--font-ja);
  font-size: 10px;
  font-weight: 500;
  color: var(--text-sub);
  letter-spacing: .12em;
}
.site-header:not(.is-scrolled) .brand-text { color: #fff; }
.site-header:not(.is-scrolled) .brand-sub { color: rgba(255,255,255,.65); }

.global-nav ul { display: flex; align-items: center; gap: 36px; }
.global-nav a {
  display: flex; flex-direction: column; align-items: center;
  line-height: 1.3;
  padding: 6px 0;
  position: relative;
}
.nav-en {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--navy-900);
  transition: color .3s;
}
.site-header:not(.is-scrolled) .nav-en { color: #fff; }
.nav-ja {
  font-size: 10px;
  color: var(--text-sub);
  letter-spacing: .1em;
}
.site-header:not(.is-scrolled) .nav-ja { color: rgba(255,255,255,.6); }
.global-nav a:not(.nav-contact)::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s cubic-bezier(.16,1,.3,1);
}
.global-nav a:not(.nav-contact):hover::after { transform: scaleX(1); }

.nav-contact {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
  border-radius: 999px;
  padding: 8px 24px !important;
  transition: opacity .3s, transform .3s;
}
.nav-contact:hover { opacity: .88; transform: translateY(-1px); }
.nav-contact .nav-en, .nav-contact .nav-ja { color: #fff !important; }
.nav-contact .nav-ja { color: rgba(255,255,255,.75) !important; }

.menu-toggle { display: none; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: radial-gradient(120% 120% at 80% 0%, var(--navy-700) 0%, var(--navy-800) 45%, var(--navy-900) 100%);
  color: #fff;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .5;
}
.orb-1 {
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(37,99,235,.65), transparent 65%);
  top: -140px; right: -80px;
  animation: drift1 14s ease-in-out infinite alternate;
}
.orb-2 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(34,211,238,.4), transparent 65%);
  bottom: -60px; left: -120px;
  animation: drift2 18s ease-in-out infinite alternate;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(99,102,241,.4), transparent 65%);
  top: 40%; left: 55%;
  animation: drift1 22s ease-in-out infinite alternate-reverse;
}
@keyframes drift1 {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(-60px,50px) scale(1.15); }
}
@keyframes drift2 {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(70px,-40px) scale(1.1); }
}
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(75% 75% at 50% 40%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(75% 75% at 50% 40%, #000 30%, transparent 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 140px 32px 120px;
}
.hero-en {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(52px, 8.5vw, 120px);
  line-height: 1.02;
  letter-spacing: .01em;
  background: linear-gradient(100deg, #fff 30%, #93c5fd 70%, var(--cyan-400) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-ja {
  margin-top: 28px;
  font-size: clamp(20px, 2.6vw, 32px);
  font-weight: 700;
  letter-spacing: .08em;
}
.hero-lead {
  margin-top: 20px;
  font-size: clamp(14px, 1.3vw, 16px);
  color: rgba(255,255,255,.72);
  letter-spacing: .05em;
}
.hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 64px;
}
.scroll-line {
  position: relative;
  width: 64px; height: 1px;
  background: rgba(255,255,255,.25);
  overflow: hidden;
}
.scroll-line::after {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 40%; height: 100%;
  background: var(--cyan-400);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(260%); }
}
.scroll-text {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .3em;
  color: rgba(255,255,255,.6);
}

.hero-marquee {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  overflow: hidden;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  z-index: 1;
}
.marquee-track {
  display: flex;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
}
.marquee-track span {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .25em;
  color: rgba(255,255,255,.22);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   Sections (common)
   ============================================================ */
.section {
  position: relative;
  padding: 130px 0;
  overflow: hidden;
}
.section-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 2;
}
.section-head { margin-bottom: 56px; }
.section-en {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--blue-500);
  display: flex;
  align-items: center;
  gap: 14px;
}
.section-en::before {
  content: "";
  width: 34px; height: 2px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
}
.section-title {
  margin-top: 14px;
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 900;
  letter-spacing: .06em;
  line-height: 1.4;
}
.section-lead {
  margin-top: 18px;
  color: var(--text-sub);
  font-size: 15px;
}
.bg-en {
  position: absolute;
  right: -10px;
  bottom: -36px;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(90px, 14vw, 200px);
  letter-spacing: .02em;
  color: rgba(16,24,40,.035);
  line-height: 1;
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
  z-index: 1;
}

/* ============================================================
   About / Mission
   ============================================================ */
.about { background: var(--white); }
.about-copy {
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 500;
  line-height: 2.3;
  letter-spacing: .04em;
}
.mission-block {
  margin-top: 72px;
  position: relative;
  background: radial-gradient(120% 160% at 85% 0%, var(--navy-700) 0%, var(--navy-800) 50%, var(--navy-900) 100%);
  border-radius: 24px;
  padding: 64px 56px;
  color: #fff;
  overflow: hidden;
}
.mission-block::before {
  content: "";
  position: absolute;
  top: -80px; right: -60px;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,.28), transparent 65%);
  filter: blur(50px);
}
.mission-label {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--cyan-400);
}
.mission-copy {
  margin-top: 18px;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  letter-spacing: .06em;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}
.mission-desc {
  margin-top: 22px;
  color: rgba(255,255,255,.75);
  font-size: 15px;
  line-height: 2.1;
  position: relative;
  z-index: 1;
}

/* ============================================================
   Business
   ============================================================ */
.business { background: var(--bg-light); }
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.business-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 44px 34px 40px;
  transition: transform .45s cubic-bezier(.16,1,.3,1), box-shadow .45s, border-color .45s;
  overflow: hidden;
}
.business-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s cubic-bezier(.16,1,.3,1);
}
.business-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px -16px rgba(16,24,40,.16);
  border-color: transparent;
}
.business-card:hover::before { transform: scaleX(1); }
.card-num {
  position: absolute;
  top: 24px; right: 28px;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 42px;
  color: rgba(16,24,40,.07);
  line-height: 1;
}
.card-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(37,99,235,.1), rgba(34,211,238,.12));
  color: var(--blue-500);
  display: grid;
  place-items: center;
  margin-bottom: 26px;
}
.card-icon svg { width: 34px; height: 34px; }
.card-title {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .04em;
}
.card-en {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-top: 6px;
}
.card-desc {
  margin-top: 18px;
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 2;
}

/* ============================================================
   Company
   ============================================================ */
.company { background: var(--white); }
.company-table-wrap {
  max-width: 860px;
}
.company-table {
  width: 100%;
  border-collapse: collapse;
}
.company-table th,
.company-table td {
  padding: 26px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 15.5px;
  line-height: 1.9;
}
.company-table tr:first-child th,
.company-table tr:first-child td { border-top: 1px solid var(--line); }
.company-table th {
  width: 180px;
  font-weight: 700;
  color: var(--navy-800);
  white-space: nowrap;
  position: relative;
}
.company-table th::before {
  content: "";
  position: absolute;
  left: 0; top: 32px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
}
.company-table th { padding-left: 24px; }
.company-table td { color: var(--text-main); }
.company-map {
  max-width: 860px;
  margin-top: 36px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.company-map iframe {
  display: block;
  width: 100%;
  height: 380px;
  border: 0;
}

/* ============================================================
   Contact
   ============================================================ */
.contact {
  background:
    radial-gradient(110% 140% at 90% -10%, var(--navy-700) 0%, var(--navy-800) 45%, var(--navy-900) 100%);
  color: #fff;
}
.contact .section-title { color: #fff; }
.contact .section-en { color: var(--cyan-400); }
.contact .section-lead { color: rgba(255,255,255,.7); }
.contact-form {
  max-width: 720px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  padding: 48px;
  backdrop-filter: blur(8px);
}
.form-row { margin-bottom: 28px; }
.form-row label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  margin-bottom: 10px;
}
.req {
  display: inline-block;
  margin-left: 8px;
  font-size: 10.5px;
  font-weight: 700;
  color: #fff;
  background: var(--blue-500);
  border-radius: 4px;
  padding: 2px 8px;
  vertical-align: middle;
}
.form-row input,
.form-row textarea {
  width: 100%;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 10px;
  padding: 14px 16px;
  color: #fff;
  font-family: var(--font-ja);
  font-size: 15px;
  transition: border-color .3s, background .3s;
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: rgba(255,255,255,.35); }
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--cyan-400);
  background: rgba(255,255,255,.1);
}
.form-hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 16px 48px;
  font-family: var(--font-ja);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .1em;
  cursor: pointer;
  transition: opacity .3s, transform .3s, box-shadow .3s;
}
.submit-btn:hover {
  opacity: .9;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -8px rgba(37,99,235,.55);
}
.btn-arrow { transition: transform .3s; }
.submit-btn:hover .btn-arrow { transform: translateX(4px); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--navy-900);
  color: #fff;
  padding: 72px 0 0;
}
.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px 56px;
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 30px;
  letter-spacing: .02em;
}
.footer-copy-en {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--cyan-400);
  margin-top: 8px;
}
.footer-address {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,.55);
}
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-nav a {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  transition: color .3s;
}
.footer-nav a:hover { color: var(--cyan-400); }
.copyright {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 32px;
  text-align: center;
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: rgba(255,255,255,.4);
}

/* ============================================================
   Privacy page
   ============================================================ */
.privacy-main {
  max-width: 860px;
  margin: 0 auto;
  padding: calc(var(--header-h) + 64px) 32px 120px;
}
.privacy-main h1 {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: .06em;
  margin-bottom: 12px;
}
.privacy-en {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 40px;
}
.privacy-main h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 44px 0 14px;
  padding-left: 16px;
  border-left: 4px solid var(--blue-500);
}
.privacy-main p, .privacy-main li {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 2.1;
}
.privacy-main ul { padding-left: 24px; list-style: disc; }
.privacy-date { margin-top: 48px; text-align: right; font-size: 13.5px; }

/* thanks page */
.thanks-main {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: calc(var(--header-h) + 40px) 32px 80px;
}
.thanks-main h1 { font-size: 28px; font-weight: 900; letter-spacing: .06em; }
.thanks-main p { margin-top: 18px; color: var(--text-sub); }
.back-btn {
  display: inline-block;
  margin-top: 36px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
  color: #fff;
  border-radius: 999px;
  padding: 14px 44px;
  font-weight: 700;
  letter-spacing: .1em;
  transition: opacity .3s;
}
.back-btn:hover { opacity: .88; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .business-grid { grid-template-columns: 1fr; }
  .pc-only { display: none; }
  .sp-only { display: inline; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .header-inner { padding: 0 20px; }
  .brand-text { font-size: 19px; }

  .menu-toggle {
    display: block;
    position: relative;
    width: 44px; height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 110;
  }
  .menu-toggle span {
    position: absolute;
    left: 10px;
    width: 24px; height: 2px;
    background: #fff;
    transition: transform .35s, top .35s, background .35s;
  }
  .site-header.is-scrolled .menu-toggle span,
  .site-header.nav-open .menu-toggle span { background: var(--navy-900); }
  .site-header.nav-open .menu-toggle span { background: #fff; }
  .menu-toggle span:nth-child(1) { top: 17px; }
  .menu-toggle span:nth-child(2) { top: 25px; }
  .site-header.nav-open .menu-toggle span:nth-child(1) { top: 21px; transform: rotate(30deg); }
  .site-header.nav-open .menu-toggle span:nth-child(2) { top: 21px; transform: rotate(-30deg); }

  .global-nav {
    position: fixed;
    inset: 0;
    background: rgba(6,13,31,.96);
    backdrop-filter: blur(12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .4s;
    display: grid;
    place-items: center;
  }
  .site-header.nav-open .global-nav { opacity: 1; pointer-events: auto; }
  .global-nav ul { flex-direction: column; gap: 32px; }
  .global-nav .nav-en { color: #fff !important; font-size: 22px; }
  .global-nav .nav-ja { color: rgba(255,255,255,.6) !important; font-size: 12px; }

  .hero-inner { padding: 120px 20px 110px; }
  .section { padding: 88px 0; }
  .section-inner { padding: 0 20px; }
  .mission-block { padding: 44px 28px; }
  .contact-form { padding: 32px 22px; }
  .company-table th { width: 110px; padding: 20px 10px 20px 20px; font-size: 14px; }
  .company-table td { padding: 20px 10px; font-size: 14px; }
  .company-map iframe { height: 260px; }
  .footer-inner { flex-direction: column; gap: 36px; }
  .bg-en { font-size: 80px; bottom: -14px; }
}