@charset "UTF-8";
/* ==========================================================================
   JUTT MESH ZONE — 共通デザインシステム
   天然繊維ジオテキスタイル・法面保護コンサルティング
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;600;700;800&display=swap');

:root{
  --bg-primary:#FAF8F2;
  --bg-secondary:#F0E8D9;
  --text-primary:#302F29;
  --accent-main:#947348;
  --accent-secondary:#B9A17C;
  --accent-env:#657654;
  --accent-tech:#6B716B;
  --accent-linen:#D7C6A8;
  --white:#FFFFFF;
  --shadow-soft:0 4px 18px rgba(48,47,41,0.08);
  --shadow-strong:0 10px 30px rgba(48,47,41,0.14);
  --radius-md:10px;
  --radius-lg:18px;
  --maxw:1180px;
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans JP",-apple-system,"Hiragino Sans","Yu Gothic",sans-serif;
  background:var(--bg-primary);
  color:var(--text-primary);
  line-height:1.85;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--accent-main);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent-env);}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{font-weight:700;line-height:1.4;margin:0 0 .6em;color:var(--text-primary);}
h1{font-size:clamp(1.9rem,4vw,2.9rem);}
h2{font-size:clamp(1.5rem,3vw,2.1rem);}
h3{font-size:1.3rem;}
h4{font-size:1.1rem;}
p{margin:0 0 1.1em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
section{padding:72px 0;}
.section-tight{padding:40px 0;}
.bg-sand{background:var(--bg-secondary);}
.bg-linen{background:var(--accent-linen);}
.eyebrow{
  display:inline-block;text-transform:uppercase;letter-spacing:.12em;
  font-size:.78rem;font-weight:700;color:var(--accent-main);
  border-bottom:2px solid var(--accent-secondary);padding-bottom:4px;margin-bottom:16px;
}
.section-head{max-width:760px;margin:0 0 42px;}
.section-head.center{margin:0 auto 48px;text-align:center;}
.lead{font-size:1.15rem;color:#4a4940;}

/* ---------- ヘッダー ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(250,248,242,0.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--accent-linen);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand .logo-mark{width:42px;height:42px;flex-shrink:0;}
.brand-text{font-size:1.02rem;font-weight:800;letter-spacing:.04em;line-height:1.1;color:var(--text-primary);white-space:nowrap;}
.brand-text small{display:block;font-size:.58rem;font-weight:500;letter-spacing:.08em;color:var(--accent-tech);margin-top:3px;}

.main-nav{display:flex;align-items:center;gap:2px;}
.main-nav>ul{display:flex;align-items:center;gap:4px;list-style:none;}
.main-nav>ul>li{position:relative;}
.main-nav>ul>li>a,.main-nav>ul>li>button.nav-top{
  display:flex;align-items:center;gap:4px;padding:10px 13px;font-size:.92rem;font-weight:600;
  color:var(--text-primary);border-radius:8px;background:none;border:none;cursor:pointer;font-family:inherit;
}
.main-nav>ul>li>a:hover,.main-nav>ul>li>button.nav-top:hover,.main-nav>ul>li.open>button.nav-top{background:var(--bg-secondary);color:var(--accent-main);}
.main-nav>ul>li>a.active{color:var(--accent-main);}
.nav-top .caret{font-size:.6rem;transition:transform .2s;}
.main-nav>ul>li.open .caret{transform:rotate(180deg);}
.dropdown{
  position:absolute;top:100%;left:0;min-width:260px;background:var(--white);
  border:1px solid var(--accent-linen);border-radius:var(--radius-md);box-shadow:var(--shadow-strong);
  padding:10px;display:none;z-index:50;
}
.main-nav>ul>li.open .dropdown{display:block;}
.dropdown a{display:block;padding:9px 12px;font-size:.88rem;color:var(--text-primary);border-radius:6px;font-weight:500;}
.dropdown a:hover{background:var(--bg-secondary);color:var(--accent-main);}
.dropdown a.active{color:var(--accent-main);background:var(--bg-secondary);}
.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{display:none;background:none;border:2px solid var(--text-primary);border-radius:8px;width:44px;height:40px;cursor:pointer;flex-shrink:0;position:relative;}
.nav-toggle span{position:absolute;left:9px;right:9px;height:2px;background:var(--text-primary);transition:.25s;}
.nav-toggle span:nth-child(1){top:12px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:26px;}
.nav-toggle.active span:nth-child(1){top:19px;transform:rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){top:19px;transform:rotate(-45deg);}

/* ---------- ボタン ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:8px;font-weight:700;font-size:.92rem;
  border:2px solid transparent;cursor:pointer;transition:.2s ease;white-space:nowrap;font-family:inherit;
}
.btn-primary{background:var(--accent-main);color:#fff;border-color:var(--accent-main);}
.btn-primary:hover{background:#7d5f3a;border-color:#7d5f3a;color:#fff;}
.btn-outline{background:transparent;color:var(--text-primary);border-color:var(--text-primary);}
.btn-outline:hover{background:var(--text-primary);color:#fff;}
.btn-env{background:var(--accent-env);color:#fff;border-color:var(--accent-env);}
.btn-env:hover{background:#4e5c41;border-color:#4e5c41;}
.btn-sm{padding:9px 18px;font-size:.84rem;}
.btn-block{width:100%;}

/* ---------- ヒーロー ---------- */
.hero{position:relative;padding:60px 0 80px;overflow:hidden;background:linear-gradient(135deg,var(--bg-secondary),var(--bg-primary));}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.hero h1{margin-bottom:22px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-strong);position:relative;}
.hero-media img{width:100%;height:440px;object-fit:cover;}
.page-hero{padding:52px 0 56px;background:var(--bg-secondary);border-bottom:1px solid var(--accent-linen);}
.page-hero .breadcrumb{font-size:.82rem;color:var(--accent-tech);margin-bottom:14px;}
.page-hero .breadcrumb a{color:var(--accent-tech);}
.page-hero p.lead{max-width:760px;}

/* ---------- カード & グリッド ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.card{
  background:var(--white);border:1px solid var(--accent-linen);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-soft);
}
.card img{border-radius:var(--radius-md);margin-bottom:18px;width:100%;height:190px;object-fit:cover;}
.card h3{margin-bottom:10px;}
.card .tag{display:inline-block;font-size:.72rem;font-weight:700;color:var(--accent-env);background:#eaeee2;padding:3px 10px;border-radius:20px;margin-bottom:12px;letter-spacing:.03em;}
.icon-card{text-align:left;}
.icon-circle{
  width:52px;height:52px;border-radius:50%;background:var(--bg-secondary);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;flex-shrink:0;
}
.icon-circle svg{width:26px;height:26px;stroke:var(--accent-main);fill:none;stroke-width:1.6;}

.feature-row{display:flex;gap:20px;align-items:flex-start;padding:22px 0;border-bottom:1px solid var(--accent-linen);}
.feature-row:last-child{border-bottom:none;}
.feature-row .icon-circle{margin-bottom:0;}
.feature-row .ftext h4{margin-bottom:6px;}
.feature-row .ftext p{margin-bottom:0;color:#4a4940;}

.num-step{display:flex;gap:22px;padding:28px 0;border-bottom:1px solid var(--accent-linen);align-items:flex-start;}
.num-step:last-child{border-bottom:none;}
.num-step .num{
  flex-shrink:0;width:54px;height:54px;border-radius:50%;background:var(--accent-main);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.2rem;
}

.img-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:30px 0;}
.img-pair figure{margin:0;}
.img-pair img{width:100%;height:260px;object-fit:cover;border-radius:var(--radius-md);box-shadow:var(--shadow-soft);}
figcaption{font-size:.8rem;color:var(--accent-tech);margin-top:8px;text-align:center;}
.full-img{margin:30px 0;}
.full-img img{width:100%;max-height:480px;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);}
.full-img figcaption{text-align:left;}

/* ---------- テーブル ---------- */
.table-wrap{overflow-x:auto;margin:24px 0;border-radius:var(--radius-md);border:1px solid var(--accent-linen);}
table{width:100%;border-collapse:collapse;min-width:640px;background:#fff;}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--accent-linen);font-size:.92rem;vertical-align:top;}
thead th{background:var(--bg-secondary);font-weight:700;color:var(--text-primary);}
tbody tr:last-child td{border-bottom:none;}

/* ---------- ノート / 注意書き ---------- */
.notice{
  background:var(--bg-secondary);border-left:4px solid var(--accent-main);
  border-radius:var(--radius-md);padding:20px 24px;margin:26px 0;font-size:.94rem;
}
.notice.warn{border-left-color:var(--accent-tech);background:#eceae4;}
.notice h4{margin-bottom:8px;font-size:.98rem;}
.notice p:last-child{margin-bottom:0;}

.checklist{list-style:none;padding:0;margin:0 0 1.1em;}
.checklist li{position:relative;padding-left:30px;margin-bottom:12px;}
.checklist li::before{content:"";position:absolute;left:0;top:4px;width:18px;height:18px;border:2px solid var(--accent-env);border-radius:4px;}
.checklist li::after{content:"✓";position:absolute;left:3px;top:0;color:var(--accent-env);font-size:.8rem;font-weight:700;}

/* ---------- フォーム ---------- */
.form-card{background:#fff;border:1px solid var(--accent-linen);border-radius:var(--radius-lg);padding:40px;box-shadow:var(--shadow-soft);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-group{margin-bottom:20px;}
.form-group.full{grid-column:1/-1;}
.form-group label{display:block;font-weight:600;font-size:.88rem;margin-bottom:7px;}
.form-group .req{color:#a65c42;font-size:.78rem;margin-left:4px;}
.form-group .hint{font-size:.78rem;color:var(--accent-tech);margin-top:5px;}
input,select,textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--accent-linen);border-radius:8px;
  font-family:inherit;font-size:.94rem;background:#fff;color:var(--text-primary);
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent-main);}
textarea{resize:vertical;min-height:120px;}
.hp-field{position:absolute;left:-9999px;top:-9999px;opacity:0;}
.form-msg{display:none;padding:16px 18px;border-radius:8px;margin-top:18px;font-size:.92rem;font-weight:600;}
.form-msg.show{display:block;}
.form-msg.success{background:#e4e9dc;color:#4a5a3a;border:1px solid var(--accent-env);}
.form-msg.error{background:#f1e2da;color:#8a4a30;border:1px solid #c47a52;}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;}
.checkbox-row input{width:18px;height:18px;margin-top:3px;flex-shrink:0;}
.checkbox-row label{font-size:.86rem;font-weight:400;margin:0;}

/* ---------- CTA バンド ---------- */
.cta-band{background:var(--text-primary);color:#f3efe4;border-radius:var(--radius-lg);padding:50px;text-align:center;}
.cta-band h2{color:#fff;}
.cta-band p{color:#cfc9b8;}
.cta-band .hero-actions{justify-content:center;}

/* ---------- タブ/フィルター (insights) ---------- */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px;}
.filter-bar button{
  padding:8px 18px;border-radius:20px;border:1.5px solid var(--accent-linen);background:#fff;
  font-size:.85rem;font-weight:600;cursor:pointer;font-family:inherit;color:var(--text-primary);
}
.filter-bar button.active,.filter-bar button:hover{background:var(--accent-main);color:#fff;border-color:var(--accent-main);}

/* ---------- フッター ---------- */
.site-footer{background:var(--text-primary);color:#cfc9b8;padding:64px 0 0;}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr 1fr;gap:34px;padding-bottom:46px;border-bottom:1px solid #4a4940;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{color:#a9a390;font-size:.88rem;margin-top:14px;}
.footer-col h4{color:#fff;font-size:.86rem;margin-bottom:16px;letter-spacing:.03em;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#cfc9b8;font-size:.86rem;}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding:26px 0;font-size:.8rem;color:#a9a390;}
.footer-bottom .legal-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:#a9a390;}
.footer-bottom a:hover{color:#fff;}
.footer-contact{font-size:.86rem;color:#cfc9b8;line-height:1.7;}

/* ---------- 404 ---------- */
.error-page{min-height:60vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:80px 0;}

/* ---------- レスポンシブ ---------- */
@media (max-width:980px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media img{height:300px;}
}
@media (max-width:860px){
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;background:var(--bg-primary);
    flex-direction:column;align-items:stretch;padding:20px;overflow-y:auto;
    transform:translateX(100%);transition:transform .25s ease;display:block;
  }
  .main-nav.active{transform:translateX(0);}
  .main-nav>ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav>ul>li{border-bottom:1px solid var(--accent-linen);}
  .main-nav>ul>li>a,.main-nav>ul>li>button.nav-top{width:100%;padding:16px 6px;justify-content:space-between;font-size:1rem;}
  .dropdown{position:static;box-shadow:none;border:none;padding:0 0 10px 14px;}
  .header-cta{margin-top:18px;}
  .header-cta .btn{width:100%;}
  .nav-toggle{display:block;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:26px;}
}
@media (max-width:700px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  section{padding:52px 0;}
  .img-pair{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .cta-band{padding:34px 22px;}
  table{min-width:560px;}
}
@media (max-width:480px){
  .footer-top{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .brand-text{font-size:.86rem;}
  .brand .logo-mark{width:36px;height:36px;}
}

.skip-link{position:absolute;left:-9999px;top:0;background:#1f1f1f;color:#fff;padding:10px 16px;z-index:1000;text-decoration:none;}
.skip-link:focus{left:12px;top:12px;}

/* heading-level aliases */
.hv-h3,.hv-h4{font-weight:700;line-height:1.4;margin:0 0 .6em;color:var(--text-primary);}
.hv-h3{font-size:1.3rem;}
.hv-h4{font-size:1.1rem;}
.card .hv-h3{margin-bottom:10px;}
.feature-row .ftext .hv-h4{margin-bottom:6px;}
.notice .hv-h4{margin-bottom:8px;font-size:.98rem;}
.footer-col .hv-h4{color:#fff;font-size:.86rem;margin-bottom:16px;letter-spacing:.03em;}