/* ==========================================================================
   YARD BLEND ZONE — 共通スタイルシート
   日本の住宅庭園・外構プランニング会社サイト
   ========================================================================== */

:root{
  --bg: #FAF8F3;
  --bg-soft: #F1E9DA;
  --bg-card: #FFFFFF;
  --text: #2E2B27;
  --text-soft: #5B564E;
  --green: #5C7A5C;
  --green-dark: #44593F;
  --olive: #7D7A4C;
  --wood: #A67C52;
  --stone: #8B8680;
  --border: #E3DCCB;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 6px 24px rgba(46, 43, 39, 0.08);
  --shadow-sm: 0 2px 10px rgba(46, 43, 39, 0.06);
  --maxw: 1180px;
  --font: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{padding-left:1.2em;}
h1,h2,h3,h4{font-weight:700;line-height:1.4;margin:0 0 .6em;letter-spacing:.01em;}
.hs-3.hs-3,.hs-4.hs-4{font-weight:700;line-height:1.4;margin:0 0 .6em;letter-spacing:.01em;}
h1{font-size:clamp(1.9rem,4vw,2.8rem);}
h2{font-size:clamp(1.5rem,3vw,2.1rem);}
h3{font-size:1.25rem;}
.hs-3.hs-3{font-size:1.25rem;}
p{margin:0 0 1em;color:var(--text-soft);}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section.tight{padding:48px 0;}
.section.soft{background:var(--bg-soft);}
.section.dark{background:var(--green-dark);color:#fff;}
.section.dark p{color:#D9E0D5;}
.section.dark h2, .section.dark h3{color:#fff;}
.section.dark .hs-3{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--green-dark);font-weight:700;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--wood);display:inline-block;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:.95rem;
  cursor:pointer;border:1px solid transparent;transition:transform .15s ease, box-shadow .15s ease, background .2s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--green);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--green-dark);}
.btn-outline{background:transparent;border-color:var(--text);color:var(--text);}
.btn-outline:hover{background:var(--text);color:#fff;}
.btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.26);}
.btn-wood{background:var(--wood);color:#fff;}
.btn-wood:hover{background:#8f663f;}
.btn-block{width:100%;}
.btn-sm{padding:10px 18px;font-size:.85rem;}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(250,248,243,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.05rem;letter-spacing:.06em;color:var(--text);}
.brand svg{width:40px;height:40px;flex-shrink:0;}
.brand-sub{display:block;font-size:.62rem;letter-spacing:.1em;color:var(--text-soft);font-weight:500;margin-top:1px;}
.main-nav{display:flex;align-items:center;gap:2px;}
.main-nav a{
  padding:10px 13px;font-size:.88rem;font-weight:600;color:var(--text-soft);
  border-radius:8px;transition:background .15s, color .15s;
}
.main-nav a:hover, .main-nav a.active{background:var(--bg-soft);color:var(--green-dark);}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;background:none;border:1px solid var(--border);border-radius:8px;
  width:42px;height:42px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;width:20px;height:2px;background:var(--text);left:0;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

@media (max-width:980px){
  .main-nav{
    position:fixed;inset:70px 0 0 0;background:var(--bg);
    flex-direction:column;align-items:stretch;padding:12px 18px;gap:4px;
    overflow-y:auto;transform:translateY(-110%);transition:transform .25s ease;
    border-top:1px solid var(--border);
  }
  .main-nav.open{transform:translateY(0);}
  .main-nav a{padding:14px 10px;border-bottom:1px solid var(--border);border-radius:0;}
  .nav-toggle{display:flex;}
  .header-actions .btn-outline{display:none;}
}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--bg-soft);}
.hero-grid{
  max-width:var(--maxw);margin:0 auto;padding:64px 24px 72px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
}
.hero-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/5;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero-stats{display:flex;gap:28px;margin-top:36px;flex-wrap:wrap;}
.hero-stats div{font-size:.85rem;color:var(--text-soft);}
.hero-stats strong{display:block;font-size:1.3rem;color:var(--green-dark);}

.page-hero{
  background:var(--bg-soft);padding:56px 0 48px;border-bottom:1px solid var(--border);
}
.page-hero .breadcrumb{font-size:.82rem;color:var(--text-soft);margin-bottom:14px;}
.page-hero .breadcrumb a{color:var(--green-dark);}
.page-hero p.lead{max-width:760px;font-size:1.05rem;}

@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;padding-top:36px;}
  .hero-media{order:-1;aspect-ratio:16/10;}
}

/* Grid / Cards */
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

.card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);
}
.card h3{margin-bottom:.5em;}
.card .hs-3{margin-bottom:.5em;}
.card .icon{
  width:46px;height:46px;border-radius:10px;background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--green-dark);
}
.card .icon svg{width:24px;height:24px;}

.media-card{border-radius:var(--radius);overflow:hidden;background:var(--bg-card);border:1px solid var(--border);box-shadow:var(--shadow-sm);}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.media-card .media-body{padding:22px;}

.tag{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;
  background:var(--bg-soft);color:var(--green-dark);padding:4px 11px;border-radius:999px;
  margin-bottom:10px;
}

/* Detail block used across design/material/planting categories */
.detail-block{
  border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-card);
  padding:32px;margin-bottom:28px;box-shadow:var(--shadow-sm);
}
.detail-block > .tag{margin-bottom:6px;}
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:20px;}
@media (max-width:760px){.detail-grid{grid-template-columns:1fr;}}
.detail-item h4{margin:0 0 6px;font-size:.92rem;color:var(--green-dark);}
.detail-item .hs-4{margin:0 0 6px;font-size:.92rem;color:var(--green-dark);}
.detail-item p{margin:0;font-size:.92rem;}
.detail-media{border-radius:var(--radius-sm);overflow:hidden;margin-bottom:20px;}
.detail-media img{width:100%;max-height:320px;object-fit:cover;}

/* Process steps */
.process-list{display:flex;flex-direction:column;gap:0;}
.process-step{
  display:grid;grid-template-columns:72px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--border);
}
.process-step:last-child{border-bottom:none;}
.process-num{
  width:56px;height:56px;border-radius:50%;background:var(--green);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;
}
@media (max-width:620px){.process-step{grid-template-columns:48px 1fr;}.process-num{width:42px;height:42px;font-size:.9rem;}}

/* Tables */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);}
table{width:100%;border-collapse:collapse;min-width:560px;}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--border);font-size:.92rem;}
th{background:var(--bg-soft);color:var(--green-dark);font-weight:700;}
tr:last-child td{border-bottom:none;}

/* Accordion / FAQ */
.accordion-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;background:var(--bg-card);overflow:hidden;}
.accordion-trigger{
  width:100%;text-align:left;background:none;border:none;padding:18px 22px;font-weight:700;font-size:1rem;
  cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--text);font-family:var(--font);
}
.accordion-trigger .plus{font-size:1.3rem;color:var(--green);transition:transform .2s;}
.accordion-item.open .plus{transform:rotate(45deg);}
.accordion-panel{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 22px;}
.accordion-item.open .accordion-panel{padding-bottom:20px;}
.accordion-panel p,.accordion-panel ul{margin-bottom:.8em;}

/* Forms */
.form-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px;}
@media (max-width:620px){.form-row{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px;}
.field label{font-size:.88rem;font-weight:700;color:var(--text);}
.field .optional{font-weight:400;color:var(--text-soft);font-size:.78rem;}
.field input,.field select,.field textarea{
  border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;
  font-family:var(--font);font-size:.95rem;background:#fff;color:var(--text);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--green);outline-offset:1px;}
.field textarea{resize:vertical;min-height:110px;}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:.88rem;color:var(--text-soft);margin:22px 0;}
.checkline input{margin-top:3px;}
.hp-field{position:absolute;left:-9999px;opacity:0;height:0;width:0;overflow:hidden;}
.form-msg{display:none;padding:14px 16px;border-radius:var(--radius-sm);font-size:.9rem;margin-top:16px;}
.form-msg.show{display:block;}
.form-msg.success{background:#E8F0E4;color:var(--green-dark);border:1px solid var(--green);}
.form-msg.error{background:#F6E6E1;color:#8a3b2a;border:1px solid #c6603f;}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#c6603f;}
.field-error{font-size:.78rem;color:#b2452f;display:none;}
.field.invalid .field-error{display:block;}

/* Side info panel on forms */
.info-panel{background:var(--bg-soft);border-radius:var(--radius);padding:30px;}
.info-panel h3{margin-bottom:14px;}
.info-panel .hs-3{margin-bottom:14px;}
.info-panel ul{margin:0;padding-left:1.1em;}
.info-panel li{margin-bottom:10px;font-size:.92rem;color:var(--text-soft);}

/* CTA band */
.cta-band{
  background:var(--green-dark);border-radius:var(--radius);padding:48px;color:#fff;
  display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
}
.cta-band p{color:#D9E0D5;margin:0;}
.cta-band h2{color:#fff;margin-bottom:8px;}

/* Footer */
.site-footer{background:#2A2824;color:#D7D2C6;padding:64px 0 28px;margin-top:0;}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px;}
@media (max-width:900px){.footer-top{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-top{grid-template-columns:1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff;font-size:1rem;margin-bottom:14px;}
.footer-brand svg{width:36px;height:36px;}
.site-footer h4{color:#fff;font-size:.88rem;letter-spacing:.06em;margin-bottom:16px;}
.site-footer .hs-4{color:#fff;font-size:.88rem;letter-spacing:.06em;margin-bottom:16px;}
.site-footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.site-footer a{color:#D7D2C6;font-size:.9rem;}
.site-footer a:hover{color:#fff;}
.footer-contact li{font-size:.88rem;color:#B9B3A3;}
.footer-bottom{
  border-top:1px solid #42403A;padding-top:22px;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:12px;font-size:.8rem;color:#9B9586;
}
.footer-bottom a{color:#9B9586;}

/* Breadcrumb list page helpers */
.pill-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px;}
.pill{
  padding:9px 18px;border-radius:999px;background:var(--bg-card);border:1px solid var(--border);
  font-size:.85rem;font-weight:600;color:var(--text-soft);
}
.pill.active{background:var(--green);color:#fff;border-color:var(--green);}

/* Article */
.article-head{max-width:760px;margin:0 auto;text-align:center;}
.article-body{max-width:720px;margin:0 auto;}
.article-body h2{margin-top:2em;}
.article-body img{border-radius:var(--radius);margin:28px 0;aspect-ratio:16/9;object-fit:cover;width:100%;}
.article-meta{display:flex;justify-content:center;gap:14px;font-size:.85rem;color:var(--text-soft);margin-bottom:18px;}
.related-list{display:grid;gap:18px;grid-template-columns:repeat(3,1fr);}
@media (max-width:860px){.related-list{grid-template-columns:1fr;}}
.related-card{border:1px solid var(--border);border-radius:var(--radius-sm);padding:18px;background:var(--bg-card);}
.related-card .tag{margin-bottom:8px;}

/* Tabs for legal page */
.tab-nav{display:flex;gap:10px;border-bottom:1px solid var(--border);margin-bottom:32px;flex-wrap:wrap;}
.tab-btn{
  padding:12px 6px;font-weight:700;font-size:.92rem;color:var(--text-soft);background:none;border:none;
  border-bottom:3px solid transparent;cursor:pointer;font-family:var(--font);
}
.tab-btn.active{color:var(--green-dark);border-color:var(--green);}
.tab-panel{display:none;}
.tab-panel.active{display:block;}

/* Utility */
.flex-between{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}
.mt-0{margin-top:0;}
.text-center{text-align:center;}
.small{font-size:.85rem;color:var(--text-soft);}
.divider{height:1px;background:var(--border);margin:48px 0;}
.badge-note{
  background:var(--bg-soft);border-left:3px solid var(--wood);padding:16px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:.9rem;margin:24px 0;
}
.num-list{counter-reset:item;list-style:none;padding:0;}
.num-list li{
  counter-increment:item;position:relative;padding-left:40px;margin-bottom:18px;
}
.num-list li::before{
  content:counter(item);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;
  background:var(--bg-soft);color:var(--green-dark);font-weight:700;font-size:.85rem;
  display:flex;align-items:center;justify-content:center;
}