/* styles.css */
:root {
  --bg: #0b0f14;
  --bg-2: #0f1620;
  --text: #e8eef6;
  --muted: #a9b4c2;
  --line: rgba(255, 255, 255, 0.10);
  --card: rgba(255, 255, 255, 0.04);
  --card-2: rgba(255, 255, 255, 0.06);
  --accent: #7dd3fc; /* light-cyan */
  --accent-2: #a78bfa; /* violet */
  --shadow: 0 12px 40px rgba(0,0,0,0.45);
  --radius: 16px;
  --max: 1040px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: "Noto Sans JP", "Inter", system-ui, -apple-system, Segoe UI, Roboto,
    "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 500px at 20% -10%, rgba(125, 211, 252, 0.18), transparent 60%),
              radial-gradient(1000px 600px at 80% 0%, rgba(167, 139, 250, 0.12), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin: 0.7rem 0; }

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 10px 12px;
  background: #000;
  border: 1px solid var(--line);
  border-radius: 10px;
  z-index: 1000;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11, 15, 20, 0.6);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.9), rgba(167, 139, 250, 0.9));
  box-shadow: 0 10px 28px rgba(0,0,0,0.35);
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-sub {
  font-size: 12px;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.nav a {
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}
.nav a:hover {
  color: var(--text);
  border-color: var(--line);
  text-decoration: none;
}
.nav-cta {
  color: var(--text) !important;
  border-color: rgba(125, 211, 252, 0.35) !important;
  background: rgba(125, 211, 252, 0.08);
}

.section {
  padding: 72px 0;
}

.section.alt {
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.03), transparent);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  margin: 0 0 6px 0;
  font-size: 28px;
  letter-spacing: 0.01em;
}
.section-head p {
  margin: 0;
  color: var(--muted);
}

.hero {
  padding-top: 56px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 26px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(125, 211, 252, 0.9);
  background: rgba(125, 211, 252, 0.10);
  border: 1px solid rgba(125, 211, 252, 0.20);
  padding: 6px 10px;
  border-radius: 999px;
}

.hero-title {
  margin: 12px 0 8px 0;
  font-size: 42px;
  line-height: 1.15;
}

.hero-tagline {
  margin: 0;
  font-size: 20px;
  color: rgba(232, 238, 246, 0.95);
}

.hero-desc {
  margin-top: 14px;
  color: var(--muted);
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
}
.btn:hover {
  text-decoration: none;
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
}

.btn.primary {
  border-color: rgba(125, 211, 252, 0.35);
  background: rgba(125, 211, 252, 0.12);
}
.btn.primary:hover {
  background: rgba(125, 211, 252, 0.16);
}

.btn.ghost {
  background: transparent;
}

.hero-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.badge {
  font-size: 12px;
  color: var(--muted);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
}

.hero-panel {
  position: relative;
  min-height: 260px;
}

.panel-card {
  position: relative;
  z-index: 2;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
  padding: 16px;
}

.panel-title {
  font-weight: 700;
  margin-bottom: 10px;
}

.panel-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.panel-list li { margin: 6px 0; }

.panel-line {
  height: 1px;
  background: var(--line);
  margin: 12px 0;
}

.panel-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 12px;
  color: var(--muted);
  font-size: 13px;
}
.meta-k { color: rgba(232,238,246,0.75); }
.meta-v { color: var(--muted); }

.panel-glow {
  position: absolute;
  inset: -40px -30px -30px -30px;
  background:
    radial-gradient(350px 240px at 30% 30%, rgba(125, 211, 252, 0.20), transparent 60%),
    radial-gradient(360px 260px at 70% 60%, rgba(167, 139, 250, 0.18), transparent 65%);
  filter: blur(18px);
  opacity: 0.9;
  z-index: 1;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.10);
  background: var(--card);
  padding: 18px;
}

.card h3 {
  margin: 0 0 8px 0;
  font-size: 18px;
}

.list {
  margin: 12px 0 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li { margin: 6px 0; }

.callout {
  margin-top: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(125, 211, 252, 0.18);
  background: rgba(125, 211, 252, 0.06);
  padding: 14px 16px;
}
.callout-title {
  font-weight: 700;
  margin-bottom: 4px;
}
.callout-text {
  margin: 0;
  color: var(--muted);
}

.note {
  margin-top: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  padding: 14px 16px;
}
.note-title {
  margin: 0;
  font-weight: 700;
}
.note-text {
  margin: 8px 0 0 0;
  color: var(--muted);
}

.company-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.10);
  background: var(--card);
  padding: 18px;
}

.company-dl .row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.company-dl .row:last-child { border-bottom: none; }

dt {
  color: rgba(232,238,246,0.85);
  font-weight: 600;
}
dd {
  margin: 0;
  color: var(--muted);
}

.company-side {
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  padding: 12px;
  height: fit-content;
}

.mini {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.mini:last-child { border-bottom: none; }

.mini-k {
  font-size: 12px;
  color: rgba(232,238,246,0.75);
  letter-spacing: 0.04em;
}
.mini-v {
  margin-top: 4px;
  color: var(--muted);
}

.contact-mail a {
  font-size: 18px;
  font-weight: 700;
  color: rgba(125, 211, 252, 0.95);
}
.contact-mail a:hover {
  text-decoration: none;
  color: rgba(125, 211, 252, 1);
}

.muted { color: var(--muted); }

.form-placeholder {
  height: 220px;
  border-radius: 14px;
  border: 1px dashed rgba(255,255,255,0.18);
  display: grid;
  place-items: center;
  color: rgba(232,238,246,0.75);
  background: rgba(255,255,255,0.02);
}

.fineprint {
  margin-top: 16px;
  color: rgba(232,238,246,0.7);
  font-size: 12px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(0,0,0,0.20);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-right a {
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
}
.footer-right a:hover {
  text-decoration: none;
  border-color: var(--line);
  color: var(--text);
}

/* Responsive */
@media (max-width: 920px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-panel {
    min-height: unset;
  }
  .grid.three {
    grid-template-columns: 1fr;
  }
  .grid.two {
    grid-template-columns: 1fr;
  }
  .company-card {
    grid-template-columns: 1fr;
  }
  .nav {
    display: none; /* 1ページなので、スマホでは非表示でOK */
  }
  .hero-title {
    font-size: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}