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

:root {
  --primary: #1a1a2e;
  --accent: #e94560;
  --accent2: #0f3460;
  --text: #2d2d2d;
  --text-light: #666;
  --bg: #f9f9fb;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --transition: 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
  font-size: 16px;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(26, 26, 46, 0.96);
  backdrop-filter: blur(8px);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 32px;
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.04em;
}
.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--accent); }

/* ===== Hero ===== */
#hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent2) 60%, #16213e 100%);
  display: flex;
  align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(233,69,96,0.15) 0%, transparent 70%);
  top: -100px; right: -100px;
  border-radius: 50%;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  background: rgba(233,69,96,0.2);
  border: 1px solid rgba(233,69,96,0.5);
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.hero-title em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.7);
  max-width: 540px;
  margin-bottom: 40px;
  line-height: 1.9;
}

.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(233,69,96,0.4);
}
.btn-primary:hover {
  background: #c73652;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(233,69,96,0.5);
}

.btn-outline {
  border: 2px solid rgba(255,255,255,0.5);
  color: var(--white);
  margin-left: 16px;
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
}

/* ===== Section Base ===== */
section { padding: 96px 0; }

.section-label {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.35;
}

.section-desc {
  color: var(--text-light);
  max-width: 580px;
  font-size: 0.97rem;
  line-height: 1.9;
}

/* ===== Sites Hub ===== */
#sites { background: var(--white); }

.sites-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 56px;
}

.site-card {
  display: block;
  border-radius: var(--radius);
  border: 2px solid #eee;
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
}

.site-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(233,69,96,0.12);
  transform: translateY(-4px);
}

.site-card-inner {
  padding: 44px 36px;
}

.site-badge {
  display: inline-block;
  background: rgba(233,69,96,0.08);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.site-icon {
  font-size: 2.6rem;
  margin-bottom: 16px;
}

.site-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.site-name-en {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 0.06em;
}

.site-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 24px;
}

.site-link-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  transition: gap var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-card:hover .site-link-label { gap: 10px; }

@media (max-width: 768px) {
  .sites-grid { grid-template-columns: 1fr; }
  .site-card-inner { padding: 32px 24px; }
}

/* ===== Services ===== */
#services { background: var(--bg); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
  gap: 32px;
  margin-top: 56px;
}

.service-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 48px 40px;
  border: 1px solid #eee;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-card:hover::before { opacity: 1; }

.service-icon {
  font-size: 2.8rem;
  margin-bottom: 20px;
}

.service-number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 8px;
}

.service-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.service-card p {
  color: var(--text-light);
  font-size: 0.93rem;
  line-height: 1.9;
  margin-bottom: 24px;
}

.service-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text);
}

.service-points li::before {
  content: '\2713';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ===== About ===== */
#about {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent2) 100%);
  color: var(--white);
}

#about .section-title { color: var(--white); }
#about .section-label { color: rgba(233,69,96,0.9); }
#about .section-desc { color: rgba(255,255,255,0.75); max-width: 620px; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-top: 56px;
}

.about-profile {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 40px;
}

.profile-name {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.profile-name-en {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
  letter-spacing: 0.08em;
}

.profile-bio {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.9;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.value-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.value-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.value-text h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.value-text p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
}

/* ===== Company Info ===== */
#company { background: var(--white); }

.company-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 48px;
  font-size: 0.93rem;
}

.company-table tr {
  border-bottom: 1px solid #f0f0f0;
}

.company-table th {
  width: 180px;
  padding: 20px 0;
  text-align: left;
  color: var(--text-light);
  font-weight: 600;
  vertical-align: top;
}

.company-table td {
  padding: 20px 0 20px 24px;
  color: var(--text);
  line-height: 1.8;
}

/* ===== Contact ===== */
#contact {
  background: var(--bg);
}

.contact-box {
  max-width: 640px;
  margin: 56px auto 0;
  background: var(--white);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
  text-align: center;
}

.contact-box p {
  color: var(--text-light);
  font-size: 0.93rem;
  margin-bottom: 32px;
  line-height: 1.9;
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
  text-align: left;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg);
  border-radius: 8px;
  font-size: 0.92rem;
}

.contact-item-label {
  font-weight: 700;
  color: var(--text-light);
  min-width: 60px;
  font-size: 0.82rem;
}

.contact-item-value {
  color: var(--text);
  font-weight: 500;
}

.contact-note {
  font-size: 0.82rem;
  color: var(--text-light);
}

/* ===== Footer ===== */
footer {
  background: var(--primary);
  color: rgba(255,255,255,0.5);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.82rem;
}

footer strong { color: rgba(255,255,255,0.8); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .company-table th { width: 120px; font-size: 0.85rem; }
  .company-table td { padding-left: 16px; }

  .contact-box { padding: 32px 24px; }

  .btn-outline { margin-left: 0; margin-top: 12px; display: inline-block; }
}