/* style.css */

/* ベース設定 */
:root {
    --bg: #0f172a;
    --bg-alt: #020617;
    --card-bg: #0b1220;
    --accent: #38bdf8;
    --accent-soft: rgba(56, 189, 248, 0.12);
    --text-main: #e5e7eb;
    --text-sub: #9ca3af;
    --border-soft: #1f2937;
    --radius-lg: 16px;
    --radius-md: 12px;
    --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.6);
    --shadow-subtle: 0 14px 30px rgba(15, 23, 42, 0.4);
    --max-width: 1040px;
  }
  
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
      "Noto Sans JP", sans-serif;
    background: radial-gradient(circle at top left, #1e293b 0, #020617 45%, #000 100%);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
  }
  
  /* レイアウト */
  .site-wrap {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  main {
    flex: 1;
  }
  
  /* コンテナ */
  .container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
  }
  
  /* ヘッダー */
  .header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(14px);
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.85), transparent);
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  }
  
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    gap: 16px;
  }
  
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 20%, #e0f2fe, #38bdf8 45%, #0f172a 100%);
    box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.85), 0 12px 30px rgba(8, 47, 73, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #0b1120;
  }
  
  .brand-text-main {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.04em;
  }
  
  .brand-text-sub {
    font-size: 11px;
    color: var(--text-sub);
  }
  
  .nav {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 13px;
  }
  
  .nav a {
    color: var(--text-sub);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
  }
  
  .nav a:hover {
    color: #e5e7eb;
    opacity: 0.9;
  }
  
  .nav .nav-primary {
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(56, 189, 248, 0.9);
    color: #e0f2fe;
    background: radial-gradient(circle at top, rgba(56, 189, 248, 0.22), rgba(15, 23, 42, 0.95));
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9), 0 8px 20px rgba(8, 47, 73, 0.9);
    font-size: 12px;
  }
  
  /* ヒーロー */
  .hero {
    padding: 40px 0 32px;
  }
  
  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2.8fr);
    gap: 32px;
    align-items: center;
  }
  
  .hero-tagline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 11px;
    border-radius: 999px;
    font-size: 11px;
    color: #e0f2fe;
    background: radial-gradient(circle at left, rgba(56, 189, 248, 0.45), rgba(15, 23, 42, 0.96));
    border: 1px solid rgba(56, 189, 248, 0.6);
    box-shadow: 0 10px 30px rgba(8, 47, 73, 0.85);
    margin-bottom: 14px;
  }
  
  .hero-tagline-dot {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: #22c55e;
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.35);
  }
  
  .hero-title {
    font-size: clamp(26px, 3vw, 30px);
    line-height: 1.3;
    margin: 0 0 10px;
  }
  
  .hero-title span.em {
    color: #e0f2fe;
    font-weight: 700;
  }
  
  .hero-lead {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 20px;
  }
  
  .hero-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 22px;
  }
  
  .pill {
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    color: #cbd5f5;
    background: linear-gradient(to bottom right, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.4));
  }
  
  .hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
  }
  
  .btn-primary {
    border-radius: 999px;
    padding: 9px 18px;
    border: 1px solid rgba(56, 189, 248, 0.95);
    background: radial-gradient(circle at top, rgba(56, 189, 248, 0.32), #0369a1);
    color: #e0f2fe;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-soft);
  }
  
  .btn-secondary {
    border-radius: 999px;
    padding: 8px 13px;
    border: 1px solid rgba(148, 163, 184, 0.6);
    background: radial-gradient(circle at top, rgba(148, 163, 184, 0.16), rgba(15, 23, 42, 0.96));
    color: #e5e7eb;
    font-size: 12px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  
  .hero-note {
    font-size: 11px;
    color: var(--text-sub);
    margin-top: 4px;
  }
  
  /* ヒーロー右側カード */
  .hero-card {
    border-radius: var(--radius-lg);
    padding: 18px 18px 16px;
    background: radial-gradient(circle at top left, rgba(30, 64, 175, 0.3), rgba(15, 23, 42, 0.98));
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow: var(--shadow-soft);
  }
  
  .hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
  }
  
  .hero-card-title {
    font-size: 13px;
    font-weight: 600;
  }
  
  .hero-card-badge {
    font-size: 11px;
    padding: 3px 9px;
    border-radius: 999px;
    background: rgba(22, 163, 74, 0.18);
    color: #bbf7d0;
    border: 1px solid rgba(34, 197, 94, 0.7);
  }
  
  .hero-card-body {
    font-size: 12px;
    color: var(--text-sub);
    line-height: 1.7;
  }
  
  /* セクション */
  .section {
    padding: 10px 0 30px;
  }
  
  .section-heading {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 16px;
  }
  
  .section-title {
    font-size: 16px;
  }
  
  .section-kicker {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-sub);
  }
  
  .section-desc {
    font-size: 13px;
    color: var(--text-sub);
  }
  
  /* カードグリッド */
  .grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
  
  .card {
    border-radius: var(--radius-md);
    padding: 14px 14px 13px;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.94));
    border: 1px solid rgba(148, 163, 184, 0.3);
    box-shadow: var(--shadow-subtle);
  }
  
  .card-pill {
    display: inline-block;
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.4);
    color: #bae6fd;
    margin-bottom: 6px;
  }
  
  .card-title {
    font-size: 14px;
    margin: 0 0 6px;
  }
  
  .card-body {
    font-size: 12px;
    color: var(--text-sub);
    line-height: 1.7;
  }
  
  /* 会社概要簡易ブロック */
  .company-brief {
    border-radius: var(--radius-md);
    padding: 14px;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.96), #020617);
    border: 1px solid rgba(148, 163, 184, 0.3);
    box-shadow: var(--shadow-subtle);
    font-size: 12px;
    color: var(--text-sub);
  }
  
  .company-brief strong {
    color: #e5e7eb;
  }
  
  /* フッター */
  .footer {
    border-top: 1px solid rgba(30, 64, 175, 0.6);
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.96), #020617);
    margin-top: 26px;
  }
  
  .footer-inner {
    padding: 14px 16px 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-sub);
  }
  
  .footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .footer a {
    color: var(--text-sub);
    text-decoration: none;
  }
  
  .footer a:hover {
    color: #e5e7eb;
  }
  
  /* 汎用ページ */
  .page-header {
    padding: 28px 0 8px;
  }
  
  .page-title {
    font-size: 20px;
    margin: 0 0 6px;
  }
  
  .page-lead {
    font-size: 13px;
    color: var(--text-sub);
  }
  
  .page-card {
    border-radius: var(--radius-lg);
    padding: 18px 16px 20px;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.96), #020617);
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow: var(--shadow-subtle);
    font-size: 13px;
    color: var(--text-main);
  }
  
  .page-card dl {
    margin: 0 0 10px;
  }
  
  .page-card dt {
    font-weight: 600;
    margin-top: 10px;
    font-size: 12px;
  }
  
  .page-card dd {
    margin: 2px 0 0 0;
    font-size: 12px;
    color: var(--text-sub);
  }
  
  .page-card ul {
    padding-left: 18px;
    margin: 6px 0 0;
  }
  
  .page-card li {
    margin-bottom: 4px;
    font-size: 12px;
  }
  
  /* レスポンシブ */
  @media (max-width: 768px) {
    .header-inner {
      flex-direction: column;
      align-items: flex-start;
    }
    .hero {
      padding-top: 22px;
    }
    .hero-inner {
      grid-template-columns: minmax(0, 1fr);
    }
    .grid {
      grid-template-columns: minmax(0, 1fr);
    }
  }