/* ================================================
   GLOBAL IT TECHNOLOGY — Light / Fresh Stylesheet
   ================================================ */

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

:root {
  --clr-bg:        #f8faff;
  --clr-surface:   #ffffff;
  --clr-surface2:  #f0f6ff;
  --clr-border:    #dce8f8;
  --clr-primary:   #1a6fd4;
  --clr-primary-l: #3b8ef0;
  --clr-accent:    #0bbcd4;
  --clr-text:      #1e293b;
  --clr-sub:       #475569;
  --clr-muted:     #94a3b8;
  --clr-white:     #ffffff;
  --gradient:      linear-gradient(135deg, #1a6fd4 0%, #0bbcd4 100%);
  --gradient-soft: linear-gradient(135deg, #e8f3ff 0%, #e0f9fc 100%);
  --shadow-sm:     0 2px 8px rgba(26,111,212,0.08);
  --shadow-md:     0 8px 32px rgba(26,111,212,0.12);
  --shadow-lg:     0 20px 60px rgba(26,111,212,0.16);
  --radius:        16px;
  --radius-sm:     10px;
  --transition:    0.3s ease;
  --font-jp:       'Noto Sans JP', sans-serif;
  --font-en:       'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-jp);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }

/* ---------- Scroll Animation ---------- */
[data-aos] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-aos].aos-active {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Section Labels / Titles ---------- */
.section-label {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--clr-primary);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--clr-text);
  margin-bottom: 14px;
}

.section-sub {
  font-size: 16px;
  color: var(--clr-sub);
  max-width: 560px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-jp);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(26,111,212,0.30);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(26,111,212,0.40);
}

.btn--outline {
  background: #fff;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary);
}
.btn--outline:hover {
  background: var(--clr-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* ================================================
   HEADER
   ================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(26,111,212,0.10);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--clr-text);
  transition: opacity var(--transition);
}
.logo:hover { opacity: 0.75; }
.logo__text  { color: var(--clr-text); }
.logo__accent { color: var(--clr-primary); }
.logo__abbr {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--clr-sub);
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
  border-radius: 2px;
}
.nav__link:hover,
.nav__link.active { color: var(--clr-primary); }
.nav__link:hover::after,
.nav__link.active::after { transform: scaleX(1); }

.nav__link--cta {
  background: var(--gradient);
  color: #fff !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(26,111,212,0.28);
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26,111,212,0.38);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ================================================
   HERO
   ================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(150deg, #f0f7ff 0%, #e8f5ff 40%, #f0fdff 100%);
}

/* 背景の装飾円 */
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,111,212,0.10) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -150px; left: -150px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11,188,212,0.10) 0%, transparent 70%);
  pointer-events: none;
}

#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
}

.hero__overlay { display: none; }

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero__badge {
  display: inline-block;
  background: rgba(26,111,212,0.08);
  border: 1px solid rgba(26,111,212,0.2);
  color: var(--clr-primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: 50px;
  margin-bottom: 28px;
  letter-spacing: 0.05em;
  animation: fadeDown 0.8s ease forwards;
}

.hero__title {
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--clr-text);
  margin-bottom: 24px;
  animation: fadeUp 0.9s ease 0.1s forwards;
  opacity: 0;
}

.hero__title--gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--clr-sub);
  margin-bottom: 40px;
  line-height: 1.85;
  animation: fadeUp 0.9s ease 0.2s forwards;
  opacity: 0;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.9s ease 0.3s forwards;
  opacity: 0;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-family: var(--font-en);
  letter-spacing: 0.15em;
  color: var(--clr-muted);
  z-index: 1;
  animation: fadeIn 1.5s ease 0.8s forwards;
  opacity: 0;
}
.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--clr-primary), transparent);
  animation: scrollPulse 2s ease infinite;
}

/* ================================================
   FEATURE STRIP
   ================================================ */
.feature-strip {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: 20px 0;
  box-shadow: var(--shadow-sm);
}
.feature-strip__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}
.feature-strip__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 32px;
  font-size: 14px;
  font-weight: 600;
  color: var(--clr-sub);
  transition: color var(--transition);
}
.feature-strip__item:hover { color: var(--clr-primary); }
.feature-strip__item i {
  font-size: 18px;
  color: var(--clr-primary);
}
.feature-strip__divider {
  width: 1px;
  height: 22px;
  background: var(--clr-border);
}

/* ================================================
   ABOUT
   ================================================ */
.about {
  background: var(--clr-surface);
}
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.about__img-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about__img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.about__img-wrap:hover .about__img { transform: scale(1.04); }

.about__img-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--clr-border);
  border-radius: 50px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--clr-text);
  box-shadow: var(--shadow-sm);
}
.about__img-badge i { color: var(--clr-primary); font-size: 16px; }

.about__desc {
  color: var(--clr-sub);
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 1.9;
}

.about__points {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0 28px;
}
.about__point {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--clr-text);
}
.about__point i {
  color: var(--clr-primary);
  background: rgba(26,111,212,0.1);
  width: 24px; height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}

/* ================================================
   SERVICES
   ================================================ */
.services {
  background: var(--clr-bg);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  padding: 0;
}

.service-card:hover {
  border-color: var(--clr-primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-card__img-wrap {
  width: 100%;
  height: 170px;
  overflow: hidden;
}
.service-card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.service-card:hover .service-card__img-wrap img { transform: scale(1.07); }

.service-card__body {
  padding: 24px 24px 28px;
}

.service-card__icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--clr-primary);
  margin-bottom: 14px;
  transition: background var(--transition), color var(--transition);
}
.service-card:hover .service-card__icon {
  background: var(--gradient);
  color: #fff;
}

.service-card__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 10px;
}

.service-card__desc {
  font-size: 13px;
  color: var(--clr-sub);
  line-height: 1.8;
  margin-bottom: 16px;
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service-card__tags li {
  font-size: 11px;
  font-weight: 600;
  background: var(--gradient-soft);
  color: var(--clr-primary);
  border: 1px solid rgba(26,111,212,0.15);
  padding: 3px 10px;
  border-radius: 50px;
  letter-spacing: 0.03em;
}

/* ================================================
   TECH BANNER
   ================================================ */
.tech-banner {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.tech-banner__img-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.tech-banner__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tech-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.92) 35%, rgba(11,188,212,0.25) 100%);
}
.tech-banner__content {
  position: relative;
  z-index: 1;
}
.tech-banner__title {
  font-size: clamp(24px, 4vw, 42px);
  font-weight: 900;
  color: var(--clr-text);
  line-height: 1.3;
  margin-bottom: 16px;
}
.tech-banner__sub {
  font-size: 16px;
  color: var(--clr-sub);
  margin-bottom: 32px;
  line-height: 1.8;
}

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

.company__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.company__office-img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.company__table-wrap {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.company__table {
  width: 100%;
  border-collapse: collapse;
}

.company__table tr {
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition);
}
.company__table tr:last-child { border-bottom: none; }
.company__table tr:hover { background: var(--clr-surface2); }

.company__table th {
  width: 160px;
  padding: 16px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--clr-primary);
  background: var(--clr-surface2);
  text-align: left;
  white-space: nowrap;
  border-right: 1px solid var(--clr-border);
}

.company__table td {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--clr-text);
  line-height: 1.7;
}

.company__table td a {
  color: var(--clr-primary);
  transition: color var(--transition);
  font-weight: 600;
}
.company__table td a:hover { color: var(--clr-accent); }

/* ================================================
   CONTACT
   ================================================ */
.contact {
  background: var(--clr-bg);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}

.contact__desc {
  font-size: 15px;
  color: var(--clr-sub);
  line-height: 1.9;
  margin-bottom: 28px;
}

.contact__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--clr-text);
}
.contact__list li i {
  color: var(--clr-primary);
  font-size: 16px;
  width: 20px;
}
.contact__list li a {
  color: var(--clr-text);
  font-weight: 600;
  transition: color var(--transition);
}
.contact__list li a:hover { color: var(--clr-primary); }

.contact__img-wrap {
  margin-top: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.contact__img-wrap img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.contact__img-wrap:hover img { transform: scale(1.04); }

/* Contact Form */
.contact-form {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 40px 36px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 8px;
}

.required { color: #ef4444; margin-left: 4px; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font-jp);
  font-size: 15px;
  color: var(--clr-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--clr-muted); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(26,111,212,0.12);
  background: #fff;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: #0f172a;
  color: #cbd5e1;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 60px;
  padding: 60px 24px 40px;
}

.footer__brand .logo__text  { color: #fff; }
.footer__brand .logo__accent { color: #38bdf8; }

.footer__brand p {
  font-size: 13px;
  color: #64748b;
  margin-top: 10px;
  line-height: 1.7;
}

.footer__address {
  font-size: 12px !important;
  color: rgba(100,116,139,0.7) !important;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer__nav-col h4 {
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer__nav-col ul li { margin-bottom: 10px; }
.footer__nav-col ul li a {
  font-size: 14px;
  color: #64748b;
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer__nav-col ul li a:hover { color: #fff; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 24px;
  text-align: center;
}
.footer__bottom p { font-size: 13px; color: #475569; }

/* ================================================
   TOAST
   ================================================ */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: #fff;
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 15px;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ================================================
   ANIMATIONS
   ================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50%       { opacity: 0.3; transform: scaleY(0.6); }
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .company__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  .nav { display: none; }
  .nav.open {
    display: flex;
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
    z-index: 999;
  }
  .nav.open .nav__list {
    flex-direction: column;
    gap: 32px;
    text-align: center;
  }
  .nav.open .nav__link {
    font-size: 20px;
    color: var(--clr-text);
  }

  .hamburger { display: flex; z-index: 1001; }
  .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero__actions { flex-direction: column; align-items: center; }
  .services__grid { grid-template-columns: 1fr; }
  .tech-banner { height: auto; padding: 64px 0; }
  .contact__inner { grid-template-columns: 1fr; gap: 48px; }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__nav { grid-template-columns: repeat(2, 1fr); }
  .feature-strip__divider { display: none; }
  .feature-strip__inner { gap: 8px; }
  .feature-strip__item { padding: 8px 16px; }
  .pc-only { display: none; }
}

@media (max-width: 480px) {
  .contact-form { padding: 28px 20px; }
  .company__table th { width: 100px; padding: 14px 12px; font-size: 12px; }
  .company__table td { padding: 14px 12px; font-size: 13px; }
}