/* ==================================================================
   index.css
   トップページ(index.html)固有のレイアウト・コンポーネントスタイル。
   色・フォントの定義は common.css を参照(このファイルは共通トークンを
   var(--xxx) の形で呼び出すだけで、値そのものは持ちません)。
   ================================================================== */

    /* ---------- header ---------- */
    header {
      background-color: rgba(255,255,255,0.96);
      backdrop-filter: blur(6px);
      color: var(--ink);
      padding: 20px 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--line);
    }
    /* 会社名ロゴ（h1はヒーロー側の見出しに譲るため、ここは通常のpタグ） */
    .logo {
      margin: 0;
      font-family: var(--font-display);
      font-size: 1.05em;
      font-weight: 600;
      letter-spacing: 0.01em;
      text-align: left;
      color: var(--ink);
    }
    nav ul {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-wrap: wrap;
      gap: 30px;
      justify-content: flex-end;
      align-items: center;
    }
    nav a {
      color: var(--text-muted);
      text-decoration: none;
      font-family: var(--font-body);
      font-size: 0.88em;
      letter-spacing: 0.01em;
      transition: color 0.2s ease;
      white-space: nowrap;
    }
    nav a:hover { color: var(--ink); }

    /* ---------- hero ---------- */
    .hero {
      position: relative;
      overflow: hidden;
      background: #fff;
      display: block;
      padding: 0;
    }
    .hero-inner {
      position: relative;
      max-width: 980px;
      margin: 0 auto;
      padding: 120px 32px 80px;
      width: 100%;
    }
    .hero-eyebrow {
      font-family: var(--font-body);
      color: var(--text-muted);
      font-size: 0.85em;
      letter-spacing: 0.06em;
      margin-bottom: 22px;
      display: block;
    }
    /* ページ全体で唯一のh1(SEO上、1ページ1つが望ましい) */
    .hero h1 {
      font-family: var(--font-display);
      color: var(--ink);
      font-size: 3.1em;
      font-weight: 700;
      line-height: 1.3;
      margin: 0 0 26px;
      border: none;
      padding: 0;
      max-width: 13ch;
      letter-spacing: -0.01em;
    }
    .hero-sub {
      font-size: 1.15em;
      color: var(--text-muted);
      max-width: 48ch;
      margin: 0 0 36px;
      line-height: 1.85;
    }
    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    /* ---------- sections ---------- */
    section {
      padding: 96px 32px;
      max-width: 980px;
      margin: 0 auto;
    }
    .eyebrow {
      font-family: var(--font-body);
      font-size: 0.78em;
      color: var(--text-muted);
      letter-spacing: 0.12em;
      margin-bottom: 14px;
      display: block;
    }
    h2 {
      font-family: var(--font-display);
      color: var(--ink);
      font-weight: 600;
      font-size: 1.7em;
      padding-bottom: 0;
      margin: 0 0 40px;
      border-bottom: none;
      position: relative;
      letter-spacing: 0.01em;
    }
    h2::after {
      display: none;
    }
    h3 {
      font-family: var(--font-display);
      margin-top: 30px;
      color: var(--blue);
      font-size: 1.15em;
      font-weight: 600;
    }
    ul { padding-left: 20px; }
    li { margin-bottom: 8px; }
    p { color: var(--text); }

    /* ---------- buttons ---------- */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 13px 26px;
      text-decoration: none;
      border-radius: 2px;
      font-weight: 600;
      font-size: 0.95em;
      transition: all 0.2s ease;
      border: 1px solid transparent;
    }
    .btn-primary {
      background-color: var(--blue-deep);
      color: #fff;
    }
    .btn-primary:hover {
      background-color: var(--blue);
    }
    .btn-outline {
      background: transparent;
      color: var(--ink);
      border-color: var(--ink);
    }
    .btn-outline:hover {
      background: var(--ink);
      color: #fff;
    }
    .contact-button {
      display: inline-block;
      background-color: var(--blue-deep);
      color: #fff;
      padding: 13px 26px;
      text-decoration: none;
      border-radius: 2px;
      font-weight: 600;
      transition: all 0.2s ease;
      margin: 5px 5px 5px 0;
    }
    .contact-button:hover {
      background-color: var(--blue);
    }

    /* ---------- problems ---------- */
    .lead-text {
      font-size: 1.05em;
      color: var(--text-muted);
      max-width: 640px;
      margin: -14px 0 10px;
    }
    .problem-list {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      column-gap: 40px;
      row-gap: 22px;
      margin-top: 36px;
    }
    .problem-list li {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 0 0 18px;
      border-bottom: 1px solid var(--line-soft);
      margin-bottom: 0;
    }
    .problem-list li::before {
      content: "";
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--copper);
      margin-top: 9px;
      flex-shrink: 0;
    }

    /* ---------- capability cards ---------- */
    .capability-cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 48px;
      margin-top: 40px;
    }
    .capability-card {
      position: relative;
      background: transparent;
      border: none;
      border-top: 1px solid var(--line);
      padding: 22px 0 0;
    }
    .capability-num {
      font-family: var(--font-mono);
      color: var(--text-muted);
      font-size: 0.78em;
      letter-spacing: 0.05em;
      display: block;
      margin-bottom: 8px;
    }
    .capability-card h3 {
      margin-top: 0;
      color: var(--ink);
      font-size: 1.2em;
    }
    .capability-card ul { margin-bottom: 0; }

    /* ---------- flow ---------- */
    .flow-steps {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      margin-top: 36px;
      justify-content: space-between;
      gap: 6px 0;
    }
    .flow-step {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      min-width: 118px;
      flex: 1 1 118px;
      padding: 4px 6px;
    }
    .flow-step .fnum {
      font-family: var(--font-mono);
      color: var(--blue-line);
      background: var(--ink);
      font-size: 0.75em;
      padding: 2px 7px;
      margin-bottom: 10px;
    }
    .flow-step .flabel {
      font-family: var(--font-display);
      font-weight: 600;
      color: var(--ink);
    }
    .flow-arrow {
      display: flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 26px;
      color: var(--line);
      position: relative;
      top: -14px;
    }
    .flow-arrow svg { width: 22px; height: 10px; }

    /* ---------- strength ---------- */
    .strength-box {
      background: #eef3f9;
      color: var(--text);
      padding: 34px 32px;
      margin-top: 24px;
      position: relative;
    }
    .strength-box::before {
      content: "";
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 3px;
      background: var(--copper);
    }
    .strength-box p { margin: 0 0 14px; color: var(--text); }
    .strength-box p:last-child { margin-bottom: 0; }
    .strength-box strong { color: var(--ink); }

    /* ---------- cta banner ---------- */
    .cta-banner {
      text-align: left;
      background: var(--card);
      color: var(--ink);
      padding: 40px 32px;
      margin: 0 auto;
      max-width: 1000px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      border-top: 3px solid var(--blue);
      border-bottom: 1px solid var(--line);
    }
    .cta-banner h2 {
      color: var(--ink);
      border-bottom: none;
      margin: 0;
      font-size: 1.4em;
      max-width: 26ch;
    }
    .cta-banner h2::after { display: none; }
    .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
    .btn-ghost {
      background: transparent;
      color: var(--blue);
      border-color: var(--blue);
    }
    .btn-ghost:hover {
      background: #eef3f9;
      border-color: var(--blue-deep);
    }

    /* ---------- spec list ---------- */
    .spec-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      font-family: var(--font-mono);
      font-size: 0.92em;
    }

    /* ---------- photo break (full-bleed, quiet) ---------- */
    .photo-break {
      width: 100%;
      background: #fff;
      padding: 48px 32px;
    }
    .photo-break-frame {
      width: 100%;
      max-width: 980px;
      margin: 0 auto;
      aspect-ratio: 16 / 6;
      background-color: #eef0f2;
      background-image: linear-gradient(135deg, #f2f3f1 0%, #e2e6ea 100%);
      background-size: cover;
      background-position: center;
    }

    .photo-break-inline {
      margin: 24px 0 8px;
    }
    .photo-break-inline .photo-break-frame {
      max-width: none;
      margin: 0;
    }
    .area-note {
      margin-top: 14px;
      padding: 14px 18px;
      background: var(--card);
      border: 1px solid var(--line);
      border-left: 3px solid var(--blue);
      font-size: 0.92em;
      color: var(--text-muted);
    }

    .works-cat-label {
      font-family: var(--font-mono);
      font-size: 0.78em;
      color: var(--blue);
      background: transparent;
      display: inline-block;
      padding: 0;
      letter-spacing: 0.1em;
      margin-top: 44px;
      margin-bottom: 4px;
      border-bottom: 1px solid var(--line);
      padding-bottom: 8px;
      width: 100%;
    }
    .works-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 4px 32px;
      margin-top: 14px;
      background: transparent;
      border: none;
    }
    .work-item {
      padding: 12px 0;
      background: transparent;
      font-size: 0.96em;
      border-bottom: 1px solid var(--line-soft);
      transition: color 0.2s ease;
    }
    .work-item:hover { color: var(--blue-deep); background: transparent; }

    /* ---------- about ---------- */
    .about-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 28px 32px;
      background: transparent;
      border: none;
      margin-top: 32px;
    }
    .about-item {
      background: transparent;
      padding: 0 0 14px;
      border-bottom: 1px solid var(--line-soft);
    }
    .about-item .k {
      font-family: var(--font-mono);
      font-size: 0.75em;
      color: var(--text-muted);
      letter-spacing: 0.05em;
      display: block;
      margin-bottom: 6px;
    }
    .about-item .v { font-weight: 500; }

    /* ---------- contact form ---------- */
    .contact-form {
      max-width: 620px;
      margin: 30px 0 0;
      padding: 28px;
      background: var(--card);
      border: 1px solid var(--line);
    }
    .form-group { margin-bottom: 20px; }
    .form-group label {
      display: block;
      margin-bottom: 6px;
      font-weight: 600;
      font-size: 0.9em;
      color: var(--text-muted);
      font-family: var(--font-mono);
    }
    .form-group input,
    .form-group textarea {
      width: 100%;
      padding: 11px 12px;
      border: 1px solid var(--line);
      border-radius: 2px;
      font-size: 1em;
      font-family: var(--font-body);
      box-sizing: border-box;
      background: var(--paper);
    }
    .form-group textarea { min-height: 120px; resize: vertical; }
    .form-group input:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--blue);
      background: #fff;
    }
    .submit-button {
      background-color: var(--blue-deep);
      color: white;
      padding: 13px 30px;
      border: none;
      border-radius: 2px;
      font-size: 1em;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .submit-button:hover { background-color: var(--ink); }
    .urgent-box {
      margin-top: 30px;
      padding: 22px 24px;
      background: #eef3f9;
      color: var(--text);
      border-radius: 2px;
      position: relative;
    }
    .urgent-box::before {
      content: "";
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 3px;
      background: var(--copper);
    }
    .urgent-box h4 { margin-top: 0; color: var(--ink); font-family: var(--font-display); }
    .urgent-box .phone { font-size: 1.3em; margin: 10px 0; font-family: var(--font-mono); color: var(--blue-deep); }
    .urgent-box .hours { margin: 5px 0; font-size: 0.9em; color: var(--text-muted); }

    /* ---------- footer ---------- */
    footer {
      background-color: var(--ink);
      color: rgba(255,255,255,0.6);
      padding: 40px 32px 30px;
      text-align: center;
      font-size: 0.88em;
      margin-top: 20px;
      border-top: 1px solid rgba(255,255,255,0.08);
    }
    footer nav ul {
      justify-content: center;
      gap: 22px;
      display: flex;
      flex-wrap: wrap;
      padding: 0;
      margin: 0 0 18px;
    }
    footer nav a { color: rgba(255,255,255,0.55); }
    footer nav a:hover { color: #fff; }

    @media (max-width: 768px) {
      header { flex-direction: column; align-items: flex-start; gap: 10px; }
      nav ul { flex-direction: column; align-items: flex-start; gap: 10px; margin-top: 4px; }
      section { padding: 44px 20px; }
      .hero { min-height: 440px; }
      .hero-inner { padding: 44px 20px 40px; }
      .hero h1 { font-size: 1.9em; max-width: none; }
      .spec-list { grid-template-columns: 1fr; }
      .cta-banner { flex-direction: column; align-items: flex-start; }
      .flow-steps { flex-direction: column; align-items: flex-start; }
      .flow-arrow { transform: rotate(90deg); top: 0; margin-left: 6px; }
    }