/* =========================================================
   畦建設工業有限会社 — デモサイト共通スタイル
   依存ゼロ（プレーンCSS）。本番では配色・余白を調整可能。
   ========================================================= */
:root{
  --navy:#1b2a4a;
  --navy-dark:#14223d;
  --navy-light:#2c4068;
  --accent:#f39200;
  --accent-dark:#d97e00;
  --gray-bg:#f4f6f9;
  --gray-line:#e2e6ec;
  --text:#2a2f36;
  --text-light:#5c6470;
  --white:#fff;
  --maxw:1080px;
  --radius:6px;
  --shadow:0 2px 16px rgba(0,0,0,.06);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic","YuGothic","Meiryo",sans-serif;
  color:var(--text);
  line-height:1.8;
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section--gray{background:var(--gray-bg);}

.section-head{text-align:center;margin-bottom:48px;}
.section-head .en{display:block;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.15em;margin-bottom:8px;}
.section-head .ja{font-size:28px;font-weight:700;color:var(--navy);}
.section-head .desc{margin-top:14px;color:var(--text-light);font-size:15px;}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius);font-weight:700;font-size:15px;transition:.2s;cursor:pointer;border:none;}
.btn svg{width:18px;height:18px;}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);}
.btn-outline{background:transparent;border:2px solid #fff;color:#fff;}
.btn-outline:hover{background:#fff;color:var(--navy);}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:var(--navy-light);}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 1px 0 var(--gray-line);}
.header-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;}
.logo-mark{width:44px;height:44px;border-radius:var(--radius);flex:0 0 auto;overflow:hidden;display:block;}
.logo-mark img{width:44px;height:44px;object-fit:cover;display:block;}
.logo-text{font-size:18px;font-weight:700;color:var(--navy);line-height:1.25;}
.logo-text small{display:block;font-size:11px;color:var(--text-light);font-weight:500;}
.nav{display:flex;gap:2px;margin-left:auto;}
.nav a{padding:8px 14px;font-size:15px;font-weight:600;color:var(--text);border-radius:var(--radius);}
.nav a:hover,.nav a.active{color:var(--accent);}
.header-cta{display:flex;align-items:center;gap:16px;}
.tel{display:flex;flex-direction:column;align-items:flex-end;line-height:1.2;}
.tel-label{font-size:10px;color:var(--text-light);}
.tel-num{font-size:18px;font-weight:700;color:var(--navy);}
.hamburger{display:none;width:40px;height:40px;border:none;background:transparent;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;}
.hamburger span{display:block;width:24px;height:2px;background:var(--navy);transition:.25s;}

/* ---------- Hero (top) ---------- */
.hero{position:relative;background:linear-gradient(135deg,rgba(20,34,61,.85),rgba(44,64,104,.65)),url('https://images.unsplash.com/photo-1485083269755-a7b559a4fe5e?w=1600&h=900&fit=crop&auto=format&q=80') center/cover no-repeat;color:#fff;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.5) 0,rgba(255,255,255,.5) 1px,transparent 1px,transparent 14px);opacity:.05;}
.hero-inner{max-width:var(--maxw);margin:0 auto;padding:120px 24px;position:relative;z-index:1;}
.hero h1{font-size:44px;font-weight:800;line-height:1.45;letter-spacing:.02em;}
.hero .lead{margin-top:20px;font-size:18px;color:rgba(255,255,255,.85);max-width:620px;}
.hero-actions{margin-top:36px;display:flex;gap:16px;flex-wrap:wrap;}

/* ---------- Page hero (sub pages) ---------- */
.page-hero{background:linear-gradient(135deg,var(--navy-dark),var(--navy-light));color:#fff;padding:60px 0;}
.page-hero .en{color:var(--accent);font-weight:700;letter-spacing:.15em;font-size:13px;}
.page-hero h1{font-size:32px;margin-top:6px;}

/* ---------- Features ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature{background:#fff;border:1px solid var(--gray-line);border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow);}
.feature .ico{width:56px;height:56px;margin:0 auto 16px;color:var(--accent);}
.feature .ico svg{width:100%;height:100%;}
.feature h3{font-size:19px;color:var(--navy);margin-bottom:10px;}
.feature p{font-size:14px;color:var(--text-light);}

/* ---------- Placeholder ---------- */
.ph{position:relative;background:linear-gradient(135deg,#dfe4ea,#c9d2dc);display:grid;place-items:center;color:#8a96a3;border-radius:var(--radius);overflow:hidden;}
.ph-4x3{aspect-ratio:4/3;}
.ph-16x7{aspect-ratio:16/7;}
.ph-portrait{aspect-ratio:3/4;}
.ph svg{width:46px;height:46px;opacity:.6;}
.ph span{position:absolute;bottom:10px;font-size:11px;letter-spacing:.12em;}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
/* 「イメージ」バッジ（実写に差し替えたら img-note ごと削除する） */
.ph .img-note{position:absolute;top:8px;right:8px;bottom:auto;background:rgba(27,42,74,.82);color:#fff;
  font-size:11px;letter-spacing:.1em;padding:3px 8px;border-radius:3px;line-height:1;z-index:2;}

/* ---------- Works ---------- */
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.work-card{background:#fff;border:1px solid var(--gray-line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.work-card .cap{padding:18px;}
.work-card .tag{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.05em;}
.work-card h3{font-size:16px;color:var(--navy);margin-top:4px;}

/* ---------- Services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.service{display:flex;gap:20px;background:#fff;border:1px solid var(--gray-line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);}
.service .ico{flex:0 0 auto;width:48px;height:48px;color:var(--accent);}
.service .ico svg{width:100%;height:100%;}
.service h3{font-size:18px;color:var(--navy);margin-bottom:6px;}
.service p{font-size:14px;color:var(--text-light);}

/* ---------- Flow steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;}
.step{text-align:center;background:#fff;border:1px solid var(--gray-line);border-radius:var(--radius);padding:24px 14px;}
.step .n{width:40px;height:40px;margin:0 auto 12px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700;}
.step h3{font-size:15px;color:var(--navy);}
.step p{font-size:13px;color:var(--text-light);margin-top:6px;}

/* ---------- About ---------- */
.greeting{display:grid;grid-template-columns:1fr 260px;gap:44px;align-items:start;}
.greeting--nophoto{grid-template-columns:minmax(0,860px);}
.greeting h2{font-size:24px;color:var(--navy);margin-bottom:18px;line-height:1.5;}
.greeting p{margin-bottom:16px;color:var(--text-light);}
.greeting .sign{font-weight:700;color:var(--navy);}
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--gray-line);border-radius:var(--radius);overflow:hidden;}
.table th,.table td{text-align:left;padding:18px 20px;border-bottom:1px solid var(--gray-line);font-size:15px;vertical-align:top;}
.table tr:last-child th,.table tr:last-child td{border-bottom:none;}
.table th{width:32%;color:var(--navy);background:var(--gray-bg);font-weight:700;white-space:nowrap;}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,var(--navy-dark),var(--navy-light));color:#fff;text-align:center;}
.cta-band .container{padding:64px 24px;}
.cta-band h2{font-size:28px;}
.cta-band p{margin:12px 0 28px;color:rgba(255,255,255,.85);}
.cta-tel{font-size:32px;font-weight:800;letter-spacing:.02em;}
.cta-tel small{display:block;font-size:13px;font-weight:500;color:rgba(255,255,255,.7);letter-spacing:.05em;margin-bottom:4px;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:8px;}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
.contact-info .tel-big{font-size:34px;font-weight:800;color:var(--navy);letter-spacing:.02em;}
.contact-info .hours{color:var(--text-light);font-size:14px;margin-top:6px;}
.info-box{background:var(--gray-bg);border-radius:var(--radius);padding:24px;margin-top:24px;}
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;color:var(--navy);}
.req{color:var(--accent);font-size:12px;margin-left:6px;}
.form-row input,.form-row textarea{width:100%;padding:12px 14px;border:1px solid var(--gray-line);border-radius:var(--radius);font-size:15px;font-family:inherit;background:#fff;}
.form-row textarea{min-height:140px;resize:vertical;}
.form-row input:focus,.form-row textarea:focus{outline:2px solid var(--accent);border-color:transparent;}
.form-note{font-size:12px;color:var(--text-light);margin-top:8px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-dark);color:rgba(255,255,255,.8);}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:56px 24px 32px;display:grid;grid-template-columns:1fr auto;gap:40px;}
.site-footer .logo-text{color:#fff;}
.footer-company p{font-size:14px;margin-top:14px;line-height:1.9;}
.footer-nav{display:flex;gap:36px;flex-wrap:wrap;}
.footer-nav a{font-size:14px;}
.footer-nav a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);}
.footer-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:20px;padding-bottom:20px;}
.footer-bottom small{font-size:12px;color:rgba(255,255,255,.5);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{font-size:13px;color:var(--text-light);padding:16px 0;}
.breadcrumb a:hover{color:var(--accent);}

/* ---------- Demo badge ---------- */
.demo-badge{position:fixed;right:14px;bottom:14px;z-index:200;background:var(--accent);color:#fff;font-weight:700;font-size:12px;padding:7px 14px;border-radius:999px;box-shadow:0 4px 14px rgba(0,0,0,.2);letter-spacing:.08em;}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:8px 24px 16px;box-shadow:var(--shadow);gap:0;}
  body.nav-open .nav{display:flex;}
  .nav a{padding:14px 8px;border-bottom:1px solid var(--gray-line);border-radius:0;}
  .header-cta{margin-left:auto;}
  .tel-label{display:none;}
  .tel-num{font-size:16px;}
  .header-contact-btn{display:none;}
  .hamburger{display:flex;}
  body.nav-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  body.nav-open .hamburger span:nth-child(2){opacity:0;}
  body.nav-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
}
@media(max-width:900px){
  .features,.works-grid{grid-template-columns:repeat(2,1fr);}
  .services-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .hero h1{font-size:36px;}
}
@media(max-width:600px){
  .section{padding:56px 0;}
  .features,.works-grid,.steps{grid-template-columns:1fr;}
  .greeting,.contact-grid,.footer-inner{grid-template-columns:1fr;}
  .hero-inner{padding:72px 24px;}
  .hero h1{font-size:28px;}
  .section-head .ja{font-size:23px;}
  .table th{width:38%;}
  .footer-nav{flex-wrap:wrap;gap:16px 28px;}
}