:root{
  --bg: #f3f4f6;                 /* cool gray */
  --surface: #ffffff;
  --text: #0b0f14;               /* near-black */
  --muted: #4b5563;              /* slate */
  --line: rgba(11,15,20,.14);
  --primary: #111827;            /* charcoal */
  --primary2:#0f172a;            /* deep */
  --accent: #b45309;             /* copper */
  --shadow: 0 18px 45px rgba(0,0,0,.10);
  --radius: 12px;                /* “ピシッと” 小さめ */
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: "Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",system-ui,sans-serif;
  color:var(--text);
  background: linear-gradient(180deg, var(--bg), #ffffff 42%, #ffffff);
  line-height:1.8;
}

a{color:inherit}
.container{
  max-width: 1040px;
  margin:0 auto;
  padding:0 20px;
}

/* Header */
.site-header{
  position: sticky;
  top:0;
  z-index: 10;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 20px;
}

.logo{
  margin:0;
}

.logo-link{
  display:flex;
  align-items:center;
}

.logo-img{
  height:64px;
  width:auto;
  display:block;
}


.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
}
.brand-mark{
  width:34px;height:34px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 10px 20px rgba(0,0,0,.12);
}
.brand-name{
  font-weight: 900;
  letter-spacing:.02em;
  line-height:1.1;
}
.brand-sub{
  font-size:12px;
  color: var(--muted);
  letter-spacing:.08em;
  text-transform: uppercase;
}

.nav{
  display:flex;
  align-items:center;
  gap: 14px;
}
.nav a{
  text-decoration:none;
  font-weight: 800;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
}
.nav a:hover{
  background: rgba(17,24,39,.06);
}

.menu-btn{
  display:none;
  border:1px solid var(--line);
  background: #fff;
  padding: 8px 10px;
  border-radius: 10px;
  cursor:pointer;
  font-weight: 800;
}

/* Hero */
.hero{
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
}

/* 背景画像 */
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(
      to right,
      rgba(255,255,255,0.92) 0%,
      rgba(255,255,255,0.88) 45%,
      rgba(255,255,255,0.75) 100%
    ),
    url("../img/hero.png") center/cover no-repeat;
  z-index:0;
}

/* コンテンツを前面に */
.hero .container{
  position:relative;
  z-index:1;
}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(17,24,39,.06);
  border: 1px solid var(--line);
  color: var(--primary);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero h1{
  margin: 14px 0 8px;
  font-size: clamp(28px, 3vw, 42px);
  line-height:1.25;
  letter-spacing:.01em;
}
.hero p{
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
}

.actions{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin: 16px 0 8px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 12px 16px;
  border-radius: 10px;
  text-decoration:none;
  font-weight:800;
  font-size:14px;
  border: 1px solid transparent;
  transition: .18s ease;
}
.btn-primary{
  color:#fff;
  background: var(--primary);
  box-shadow: 0 14px 30px rgba(0,0,0,.14);
}
.btn-primary:hover{
  transform: translateY(-1px);
  filter: brightness(1.03);
}
.btn-ghost{
  color: var(--primary);
  background: transparent;
  border: 1px solid var(--line);
}
.btn-ghost:hover{
  border-color: rgba(180,83,9,.45);
  color: var(--accent);
}

.hero-card{
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
  padding: 22px;
}
.hero-card .hero-img{
  width:100%;
  aspect-ratio: 3 / 2;
  border-radius: 10px;
  overflow:hidden;
  border: 1px solid var(--line);
  background: #fff;
}
.hero-card .hero-img img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}

.metrics{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 12px;
}
.metric{
  background: rgba(255,255,255,.95);
  border:1px solid var(--line);
  border-radius: 10px;
  padding: 12px 12px;
}
.metric b{
  display:block;
  font-size: 18px;
  letter-spacing:.01em;
}
.metric span{
  color: var(--muted);
  font-size: 12px;
}

/* Sections */
.section{
  padding: 46px 0;
}
.section-title{
  font-size: 20px;
  margin: 0 0 16px;
  letter-spacing:.02em;
}
.section-lead{
  color: var(--muted);
  margin-top: -8px;
  margin-bottom: 18px;
}

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.grid-2{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 26px rgba(0,0,0,.06);
  padding: 18px;
  transition: .18s ease;
}
.card:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0,0,0,.10);
}
.card h3{
  margin: 0 0 6px;
  font-size: 16px;
  letter-spacing:.01em;
}
.card p{
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.icon{
  width:44px;height:44px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  background: rgba(180,83,9,.10);
  border:1px solid rgba(180,83,9,.18);
  margin-bottom: 10px;
}
.icon svg{width:22px;height:22px; fill: var(--accent)}

/* Tables */
.table{
  width:100%;
  border-collapse:collapse;
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
}
.table th,.table td{
  padding: 12px 14px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  font-size: 14px;
}
.table th{
  width: 170px;
  background: rgba(17,24,39,.03);
  text-align:left;
}
.table tr:last-child th,.table tr:last-child td{border-bottom:none}

/* Steps */
.steps{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.step{
  border:1px dashed rgba(180,83,9,.35);
  background: rgba(180,83,9,.06);
  border-radius: var(--radius);
  padding: 16px;
}
.step b{
  display:block;
  margin-bottom: 6px;
}

/* Forms */
.form{
  display:grid;
  gap: 12px;
}
.field label{
  display:block;
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 6px;
}
.field input,.field textarea{
  width:100%;
  padding: 12px 12px;
  border-radius: 10px;
  border:1px solid var(--line);
  background:#fff;
  font-size: 14px;
}
.field textarea{min-height: 140px; resize: vertical}
.field input:focus,.field textarea:focus{
  outline: none;
  border-color: rgba(180,83,9,.45);
  box-shadow: 0 0 0 3px rgba(180,83,9,.14);
}

/* Footer */
.site-footer{
  border-top:1px solid var(--line);
  background: #ffffff;
  padding: 26px 0;
  color: var(--muted);
  font-size: 13px;
}
.footer-grid{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 18px;
}
.footer-links{
  display:flex;
  gap: 12px;
  flex-wrap:wrap;
}
.footer-links a{
  text-decoration:none;
  padding: 6px 10px;
  border-radius: 10px;
  border:1px solid var(--line);
  background: #fff;
}
.footer-links a:hover{
  border-color: rgba(180,83,9,.45);
  color: var(--accent);
}

small{color: var(--muted)}

/* Responsive */
@media (max-width: 900px){
  .metrics{grid-template-columns: 1fr 1fr 1fr;}
  .grid-3{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr; }
  .table th{width: 140px;}
}
@media (max-width: 700px){
  .menu-btn{display:inline-flex;}
  .site-header .container{padding: 12px 20px;}
  .metrics{grid-template-columns: 1fr; }
  .footer-grid{flex-direction:column;}
}

.proof{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.proof-item{
  background: rgba(255,255,255,.85);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 14px;
  box-shadow: 0 10px 26px rgba(0,0,0,.05);
}

.proof-k{
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 900;
  margin-bottom: 6px;
}

.proof-v{
  font-weight: 900;
  color: var(--primary);
  font-size: 14px;
}

@media (max-width: 900px){
  .proof{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px){
  .proof{ grid-template-columns: 1fr; }
}

.nav .nav-cta{
  background: var(--primary);
  color:#fff;
  border:1px solid var(--line);
  box-shadow:none;
}
.nav .nav-cta:hover{
  transform:none;
  filter: brightness(1.05);
}

.nav a:not(.nav-cta)::after{
  height:1px;
  background: rgba(180,83,9,.45);
}

/* ===== Hero 1カラム化 ===== */

.hero-single{
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 0;
}

.hero-single h2{
  font-size: clamp(32px, 3.5vw, 48px);
  line-height: 1.3;
  margin: 16px 0 12px;
}

.hero-single p{
  font-size: 16px;
  color: var(--muted);
}

.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin: 20px 0 10px;
}

/* helpers */
.center{ text-align:center; }
.footer-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
  flex-wrap:wrap;
}
.mt-24{ margin-top:24px; }

button.btn{ cursor:pointer; }

/* ===== FINAL HEADER LOGO SIZE ===== */

/* ヘッダー余白をコンパクトに */
.site-header .container{
  padding: 8px 20px;
}

/* PC ロゴ */
.logo-img{
  height: 72px;
  width: auto;
  display:block;
}

/* Mobile */
@media (max-width: 768px){

  .site-header .container{
    padding: 6px 14px;
  }

  .logo-img{
    height: 64px;
  }

}

/* ===== Responsive Wide Logo ===== */

.site-header .container{
  padding: 8px 20px;
}

/* 横長ロゴは幅で制御 */
.logo-img{
  height: auto;
  width: clamp(160px, 22vw, 300px);
  display: block;
}

/* スマホ微調整 */
@media (max-width: 768px){
  .site-header .container{
    padding: 6px 14px;
  }
  .logo-img{
    width: min(78vw, 260px);
  }
}

/* ===== Mobile nav: keep links visible (wrap) ===== */
@media (max-width: 768px){

  /* ヘッダーを折り返せるように */
  .site-header .container{
    flex-wrap: wrap;
    gap: 10px;
  }

  /* ナビを消さずに表示 */
  .nav{
    display: flex !important;
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 8px;
  }

  .nav a{
    padding: 8px 10px;
    font-size: 13px;
    border-radius: 10px;
    white-space: nowrap;
  }

  /* CTAだけ少し目立たせつつ、デカすぎないように */
  .nav .nav-cta{
    padding: 8px 12px;
  }

  /* ハンバーガーボタンは不要なら消す */
  .menu-btn{
    display: none !important;
  }
}