/* 060 〇〇土木 — Earth Brown × Yellow / Anton Industrial Heavy */
*{margin:0;padding:0;box-sizing:border-box}html,body{overflow-x:hidden}
:root{--bg:#f5f1e8;--bg-2:#e8dfca;--bg-3:#1a1410;--ink:#2a1f15;--ink-2:#3d2e1f;--earth:#7a5230;--earth-d:#5c3a1d;--earth-l:#9c7144;--yellow:#fbbf24;--yellow-d:#d97706;--gray:#6b5a48;--gray-l:#9a8a76;--line:rgba(42,31,21,.15);--line-2:rgba(42,31,21,.28)}
body{background:var(--bg);color:var(--ink);font-family:'Inter','Noto Sans JP',sans-serif;font-size:15.5px;line-height:1.7;-webkit-font-smoothing:antialiased;font-weight:400}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
.container{max-width:1320px;margin:0 auto;padding:0 32px}
.anton{font-family:'Anton','Noto Sans JP',sans-serif;letter-spacing:.02em;font-weight:400}
.demo-bar{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--ink);color:var(--yellow);text-align:center;padding:9px 16px;font-size:11px;letter-spacing:.18em;font-weight:600;border-bottom:2px solid var(--yellow)}
.demo-bar a{text-decoration:underline;color:var(--yellow);font-weight:700}

/* ===== Header ===== */
header.site-header{position:fixed;top:34px;left:0;right:0;z-index:100;background:var(--ink);color:var(--bg);border-bottom:3px solid var(--yellow)}
.nav-wrap{display:flex;justify-content:space-between;align-items:center;padding:18px 32px;max-width:1600px;margin:0 auto}
.logo{font-family:'Anton','Noto Sans JP',sans-serif;font-size:28px;font-weight:400;color:var(--bg);letter-spacing:.04em;display:flex;align-items:center;gap:12px;text-transform:uppercase}
.logo::before{content:"";width:18px;height:18px;background:var(--yellow);clip-path:polygon(0 0,100% 0,80% 100%,20% 100%)}
.logo span{color:var(--yellow)}
.nav-list{display:flex;gap:36px;list-style:none}
.nav-list a{font-family:'Anton','Noto Sans JP',sans-serif;font-size:15px;font-weight:400;color:var(--bg);letter-spacing:.08em;padding:6px 0;transition:color .2s;text-transform:uppercase}
.nav-list a:hover{color:var(--yellow)}
.nav-cta{padding:10px 22px;background:var(--yellow);color:var(--ink);font-family:'Anton',sans-serif;font-size:13px;font-weight:400;letter-spacing:.12em;text-transform:uppercase;border:none;transition:all .2s}
.nav-cta:hover{background:var(--bg)}
.mobile-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--bg)}
@media(max-width:900px){.nav-list,.nav-cta{display:none}.mobile-toggle{display:block}}

/* ===== HERO — Earth Heavy / Construction Site ===== */
.hero{position:relative;min-height:100vh;padding:200px 0 80px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(135deg,rgba(26,20,16,.78) 0%,rgba(26,20,16,.55) 50%,rgba(251,191,36,.18) 100%),url("../images/hero.jpg") center/cover var(--ink)}
.hero::before{content:"⚠ HEAVY EQUIPMENT IN OPERATION ⚠";position:absolute;top:80px;left:50%;transform:translateX(-50%);font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.4em;color:var(--yellow);font-weight:700;text-transform:uppercase}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:32px;background:repeating-linear-gradient(45deg,var(--yellow) 0 36px,var(--ink) 36px 72px)}
.hero .container{position:relative;z-index:2}
.hero-meta{display:flex;gap:32px;font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.32em;color:var(--yellow);margin-bottom:32px;text-transform:uppercase;font-weight:700}
.hero-meta b{color:var(--bg);font-weight:700}
.hero h1{font-family:'Anton','Noto Sans JP',sans-serif;font-size:clamp(64px,13vw,180px);line-height:.92;letter-spacing:.01em;color:var(--bg);font-weight:400;margin-bottom:32px;text-transform:uppercase}
.hero h1 em{color:var(--yellow);font-style:normal;display:inline-block}
.hero h1 .stroke{-webkit-text-stroke:2px var(--yellow);color:transparent;display:inline-block}
.hero h1 .jp{display:block;font-family:'Noto Sans JP',sans-serif;font-size:clamp(16px,2vw,28px);font-weight:700;letter-spacing:.04em;color:rgba(245,241,232,.85);margin-top:24px;line-height:1.4;text-transform:none}
.hero-lead{font-size:clamp(15px,1.3vw,17px);color:rgba(245,241,232,.78);max-width:620px;margin-bottom:48px;line-height:1.95;text-shadow:0 1px 8px rgba(0,0,0,.3)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:64px}
.btn{display:inline-flex;align-items:center;gap:12px;padding:18px 36px;font-family:'Anton','Noto Sans JP',sans-serif;font-size:15px;font-weight:400;letter-spacing:.12em;text-transform:uppercase;transition:all .2s;border:none}
.btn-primary{background:var(--yellow);color:var(--ink)}
.btn-primary:hover{background:var(--bg)}
.btn-outline{background:transparent;color:var(--bg);border:2px solid var(--bg)}
.btn-outline:hover{background:var(--bg);color:var(--ink)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;max-width:780px;border-top:2px solid var(--yellow);padding-top:32px;margin-bottom:48px}
.hero-stat{color:var(--bg)}
.hero-stat-num{font-family:'Anton','Noto Sans JP',sans-serif;font-size:clamp(40px,5vw,64px);font-weight:400;color:var(--yellow);letter-spacing:.01em;line-height:1}
.hero-stat-label{font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.18em;color:rgba(245,241,232,.55);margin-top:10px;text-transform:uppercase;font-weight:600}

/* ===== Section Common ===== */
.sec-tag{display:inline-block;font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.32em;color:var(--earth);text-transform:uppercase;margin-bottom:16px;font-weight:700;background:var(--yellow);padding:6px 14px;color:var(--ink)}
.sec-title{font-family:'Anton','Noto Sans JP',sans-serif;font-size:clamp(40px,6vw,84px);line-height:1;color:var(--ink);font-weight:400;letter-spacing:.01em;margin-bottom:24px;text-transform:uppercase}
.sec-title em{color:var(--earth);font-style:normal}
.sec-title .jp{display:block;font-family:'Noto Sans JP',sans-serif;font-size:clamp(14px,1.6vw,20px);font-weight:700;letter-spacing:.04em;color:var(--gray);margin-top:14px;line-height:1.5;text-transform:none}
.sec-lead{color:var(--gray);font-size:15px;line-height:1.95;max-width:680px}
.sec-header{margin-bottom:64px}

/* ===== ABOUT ===== */
.about-section{padding:120px 0;background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:64px;align-items:center}
.about-visual{aspect-ratio:4/5;background:url("../images/about.jpg") center/cover;border:6px solid var(--ink);position:relative}
.about-visual::after{content:"";position:absolute;top:-6px;right:-6px;width:48px;height:48px;background:var(--yellow)}
.about-text p{margin-bottom:18px;color:var(--gray);font-size:15.5px;line-height:1.95}
.about-data{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;padding-top:40px;border-top:3px solid var(--ink)}
.about-data-item{text-align:left}
.about-data-num{font-family:'Anton','Noto Sans JP',sans-serif;font-size:52px;font-weight:400;color:var(--ink);letter-spacing:0;line-height:1}
.about-data-num em{font-size:18px;color:var(--earth);font-style:normal;margin-left:4px;font-family:'Inter',sans-serif;font-weight:700}
.about-data-label{font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.18em;color:var(--gray);margin-top:8px;text-transform:uppercase;font-weight:700}

/* ===== SERVICE ===== */
.service-section{padding:120px 0;background:var(--ink);color:var(--bg)}
.service-section .sec-title{color:var(--bg)}
.service-section .sec-tag{background:var(--yellow);color:var(--ink)}
.service-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0;margin-top:48px;border-top:2px solid var(--yellow);border-left:2px solid var(--yellow)}
.service-card{padding:48px 32px;background:transparent;border-right:2px solid var(--yellow);border-bottom:2px solid var(--yellow);transition:all .25s}
.service-card:hover{background:rgba(251,191,36,.08)}
.service-card .num{font-family:'Anton','Noto Sans JP',sans-serif;font-size:48px;color:var(--yellow);margin-bottom:24px;line-height:1;letter-spacing:0}
.service-card h3{font-family:'Anton','Noto Sans JP',sans-serif;font-size:28px;color:var(--bg);margin-bottom:14px;font-weight:400;text-transform:uppercase;letter-spacing:.02em}
.service-card h3 .jp{display:block;font-family:'Noto Sans JP',sans-serif;font-size:13px;font-weight:700;color:var(--yellow);margin-top:6px;text-transform:none}
.service-card p{color:rgba(245,241,232,.7);font-size:14px;line-height:1.85}

/* ===== WORKS ===== */
.works-section{padding:120px 0;background:var(--bg-2)}
.works-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.works-item{background:var(--bg);overflow:hidden;border:3px solid var(--ink);transition:all .25s}
.works-item:hover{transform:translate(-4px,-4px);box-shadow:8px 8px 0 var(--yellow)}
.works-img{aspect-ratio:16/10;background-size:cover;background-position:center}
.works-info{padding:24px 28px;background:var(--bg)}
.works-info .meta{font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.18em;color:var(--earth);margin-bottom:10px;font-weight:700;text-transform:uppercase;background:var(--yellow);display:inline-block;padding:4px 10px}
.works-info h4{font-family:'Anton','Noto Sans JP',sans-serif;font-size:22px;color:var(--ink);font-weight:400;margin:14px 0 10px;line-height:1.25;text-transform:uppercase;letter-spacing:.01em}
.works-info p{font-size:13.5px;color:var(--gray);line-height:1.85}

/* ===== PROCESS ===== */
.process-section{padding:120px 0;background:var(--bg)}
.process-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0;margin-top:48px;border-top:3px solid var(--ink)}
.process-step{position:relative;padding:32px 24px;background:var(--bg-2);border-right:1px solid var(--ink);border-bottom:3px solid var(--ink)}
.process-step:last-child{border-right:3px solid var(--ink)}
.process-step .num{font-family:'Anton','Noto Sans JP',sans-serif;font-size:54px;color:var(--earth);line-height:1;margin-bottom:18px;letter-spacing:0}
.process-step h4{font-family:'Anton','Noto Sans JP',sans-serif;font-size:20px;color:var(--ink);margin-bottom:10px;font-weight:400;text-transform:uppercase;letter-spacing:.02em}
.process-step p{font-size:13.5px;color:var(--gray);line-height:1.85}

/* ===== NEWS ===== */
.news-section{padding:120px 0;background:var(--bg-2)}
.news-list{max-width:920px;margin:48px auto 0;display:flex;flex-direction:column;gap:0}
.news-item{display:grid;grid-template-columns:130px 110px 1fr;gap:20px;padding:24px 0;border-bottom:1px solid var(--line);align-items:center;transition:all .2s}
.news-item:hover{padding-left:12px;border-bottom-color:var(--earth)}
.news-date{font-family:'Inter',sans-serif;font-size:13px;color:var(--gray);letter-spacing:.05em;font-weight:600}
.news-cat{font-family:'Anton','Noto Sans JP',sans-serif;font-size:13px;font-weight:400;letter-spacing:.12em;background:var(--ink);color:var(--yellow);padding:6px 10px;text-align:center;text-transform:uppercase}
.news-title{font-size:14.5px;color:var(--ink);font-weight:600}

/* ===== CTA ===== */
.cta-block{padding:120px 0;background:var(--yellow);color:var(--ink);text-align:center;position:relative;overflow:hidden;border-top:8px solid var(--ink);border-bottom:8px solid var(--ink)}
.cta-block h2{font-family:'Anton','Noto Sans JP',sans-serif;font-size:clamp(40px,6vw,84px);font-weight:400;line-height:1;margin-bottom:24px;letter-spacing:.01em;text-transform:uppercase}
.cta-block h2 em{color:var(--earth-d);font-style:normal;display:inline-block}
.cta-block p{color:var(--ink);font-size:15.5px;line-height:1.95;margin-bottom:40px;font-weight:600}
.cta-block .btn-primary{background:var(--ink);color:var(--yellow)}
.cta-block .btn-primary:hover{background:var(--earth-d);color:var(--yellow)}

/* ===== FOOTER ===== */
.site-footer{background:var(--ink);color:rgba(245,241,232,.6);padding:80px 0 32px;border-top:6px solid var(--yellow)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .logo{color:var(--bg);margin-bottom:18px}
.footer-brand p{font-size:13.5px;line-height:1.85}
.footer-col h5{font-family:'Anton','Noto Sans JP',sans-serif;font-size:15px;letter-spacing:.18em;color:var(--yellow);text-transform:uppercase;margin-bottom:18px;font-weight:400}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.5px;color:rgba(245,241,232,.6);transition:color .25s}
.footer-col a:hover{color:var(--yellow)}
.footer-bottom{padding-top:24px;border-top:1px solid rgba(245,241,232,.1);text-align:center;font-size:12px;color:rgba(245,241,232,.4);letter-spacing:.08em}

/* ===== Page Hero (sub-pages) ===== */
.page-hero{padding:200px 0 80px;text-align:center;background:var(--ink);color:var(--bg);position:relative;overflow:hidden;border-bottom:6px solid var(--yellow)}
.page-hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:8px;background:repeating-linear-gradient(45deg,var(--yellow) 0 24px,var(--ink) 24px 48px)}
.page-hero h1{font-family:'Anton','Noto Sans JP',sans-serif;font-size:clamp(48px,7.5vw,96px);color:var(--bg);font-weight:400;letter-spacing:.02em;text-transform:uppercase}
.page-hero .breadcrumb{font-family:'Inter',sans-serif;font-size:11px;color:var(--yellow);letter-spacing:.4em;margin-bottom:18px;text-transform:uppercase;font-weight:700}

/* ===== Reveal Animation ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.show{opacity:1;transform:none}

/* ===== Responsive ===== */
@media(max-width:900px){
  .about-grid,.footer-grid{grid-template-columns:1fr;gap:48px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:24px}
  .news-item{grid-template-columns:1fr;gap:6px;padding:18px 0}
  .news-cat{justify-self:start}
}


/* === Hamburger Menu Active State (透け防止 - Audit fix) === */
@media(max-width:900px){
  header.site-header.menu-active,
  .site-header.menu-active{
    background:var(--ink) !important;
    backdrop-filter:none !important;
    -webkit-backdrop-filter:none !important;
  }
}

/* ====================================================
   Visual safety override (2026-05-04 一括強制表示化)
   feedback_pre_upload_visual_check ルール準拠
   JS未発火時/画像非表示を防ぐため、すべての
   reveal系クラスを初期表示OKに強制
==================================================== */
.reveal, .reveal-up, .reveal-fade, .reveal-clip, .reveal-noren,
.scrub-item, .reveal-left, .reveal-right { 
  opacity: 1 !important; 
  transform: none !important; 
  clip-path: inset(0 0 0% 0) !important;
  -webkit-clip-path: inset(0 0 0% 0) !important;
}



/* ====================================================
   スマホ時 contact フォーム強制1カラム化（2026-05-05）
   2カラム表示で入力欄が狭くなる問題
==================================================== */
@media (max-width: 767px) {
    .form-row,
    .form-grid,
    .form-2col,
    .form-pair,
    .input-row,
    .input-grid,
    [class*="form-row"],
    [class*="form-grid"],
    [class*="two-col"] {
        display: block !important;
        grid-template-columns: 1fr !important;
    }
    form input[type="text"],
    form input[type="email"],
    form input[type="tel"],
    form input[type="number"],
    form textarea,
    form select,
    .form-row > input,
    .form-row > textarea,
    .form-row > select,
    .form-row > div,
    .form-grid > * {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box;
    }
    .form-row, .form-grid {
        margin-bottom: 1rem;
    }
}



/* ====================================================
   contact 1カラム化 強化版（2026-05-05・全クラス網羅）
==================================================== */
@media (max-width: 767px) {
    .contact-grid,
    .contact-form,
    .ct-grid,
    .ct-form,
    .booking-form,
    .reserve-form,
    .form-card,
    .form-wrap,
    .form-box,
    [class*="contact-grid"],
    [class*="contact-form"],
    [class*="ct-grid"],
    [class*="ct-form"] {
        display: block !important;
        grid-template-columns: 1fr !important;
    }
    .contact-grid > *,
    .contact-form > *,
    .ct-grid > *,
    .ct-form > *,
    .booking-form > *,
    .reserve-form > *,
    .form-card > *,
    .form-wrap > *,
    .form-box > * {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box;
    }
    .ct-budget-grid,
    .ct-field {
        grid-template-columns: 1fr !important;
        display: block !important;
    }
}

/* ====================================================
   横スクロール防止（2026-05-14 一括追加）
   CLAUDE.md ルール「html/body 両方に overflow-x:hidden」準拠
==================================================== */
html { overflow-x: hidden; }
body { overflow-x: hidden; }

/* ====================================================
   ハンバーガーメニュー全画面オーバーレイ化（2026-05-14）
   CLAUDE.md ルール準拠: position:fixed; inset:0; 不透明背景
==================================================== */
@media (max-width: 900px) {
  .mobile-toggle {
    z-index: 1100 !important;
    position: relative !important;
  }
  .nav-list {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(10,10,10,0.98) !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 28px !important;
    padding: 80px 24px 40px !important;
    margin: 0 !important;
    z-index: 1000 !important;
    transform: translateX(100%);
    transition: transform .35s cubic-bezier(.4,0,.2,1), opacity .25s;
    opacity: 0;
    pointer-events: none;
    list-style: none;
    overflow-y: auto;
  }
  .nav-list.is-open {
    transform: translateX(0) !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }
  .nav-list a,
  .nav-list li,
  .nav-list li a {
    color: #fff !important;
    font-size: 20px !important;
    letter-spacing: 0.1em !important;
    text-decoration: none !important;
    padding: 8px 16px !important;
    display: block !important;
  }
  .nav-list li {
    list-style: none !important;
  }
  header.site-header.menu-active,
  .site-header.menu-active {
    background: rgba(10,10,10,0.98) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}

/* ====================================================
   2カラム→1カラム化 B案（2026-05-15）
   左画像・右文章になりがちなキーワード対象
==================================================== */
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr !important; gap: 28px !important; }
}

/* ====================================================
   多カラムgrid スマホ最適化（2026-05-15 千尋）
==================================================== */
@media (max-width: 768px) {
  /* 2カラム化（情報密度を保つ） */
  .hero-stats { grid-template-columns: repeat(2, 1fr) !important; gap: 18px !important; }
  .about-data { grid-template-columns: repeat(2, 1fr) !important; gap: 18px !important; }
}

/* ====================================================
   process-grid（4STEPS）スマホ1カラム化（2026-05-16 一括追加）
==================================================== */
@media(max-width:640px){
  .process-grid{grid-template-columns:1fr !important;margin-top:32px}
  .process-step{padding:26px 20px;border-right:none !important;border-bottom:1px solid var(--ink) !important}
  .process-step:nth-child(2){border-right:none !important;border-bottom:1px solid var(--ink) !important}
  .process-step:last-child{border-bottom:none !important}
  .process-step .step-num{margin-bottom:14px}
  .process-step h4{font-size:22px;margin-bottom:10px}
  .process-step p{font-size:13px;line-height:1.78}
}