/* =========================================================
   บ้านน็อคดาวน์นาทวี — Design Tokens
   Base sand:   #F1EBDD
   Ink:         #2B2420
   Rust (roof): #B5502E
   Forest:      #3B5943
   Steel:       #6B7280
   Cream card:  #FBF8F2
   ========================================================= */

:root{
  --sand:#F1EBDD;
  --ink:#2B2420;
  --ink-soft:#5C534A;
  --rust:#B5502E;
  --rust-dark:#8F3E22;
  --forest:#3B5943;
  --forest-dark:#2A4030;
  --steel:#6B7280;
  --card:#FBF8F2;
  --line:#DDD3BE;
  --white:#ffffff;
  --radius:2px;
  --max:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink);
  font-family:'Sarabun', sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Kanit', sans-serif;
  color:var(--ink);
  line-height:1.25;
  margin:0 0 .5em;
  font-weight:600;
}
h1{font-size:clamp(2.1rem,4.5vw,3.4rem); font-weight:700;}
h2{font-size:clamp(1.5rem,3vw,2.15rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1.1em;}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}
ul{margin:0; padding:0;}
li{list-style:none;}

.wrap{max-width:var(--max); margin:0 auto; padding:0 24px;}

/* Skip link / focus */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:3px solid var(--rust);
  outline-offset:2px;
}
.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--forest); color:#fff; padding:10px 18px; z-index:200;
}
.skip-link:focus{left:16px; top:16px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important;}
}

/* ============== Corrugated roof divider — brand motif ============== */
.corrugate{
  width:100%; height:22px; display:block;
  background-repeat:repeat-x; background-size:44px 22px;
}
.corrugate.--sand-to-card{ background-color:var(--card);
  background-image:repeating-linear-gradient(115deg, var(--sand) 0 6px, transparent 6px 22px);
}
.corrugate-svg{display:block; width:100%; height:26px;}

/* ============== Header ============== */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(241,235,221,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  min-height:78px; gap:20px;
}
.brand{display:flex; align-items:center; gap:12px;}
.brand-mark{width:42px; height:42px; flex:none;}
.brand-text{font-family:'Kanit',sans-serif; font-weight:700; font-size:1.05rem; color:var(--ink); line-height:1.2;}
.brand-text small{display:block; font-family:'Sarabun',sans-serif; font-weight:400; font-size:.72rem; color:var(--ink-soft); letter-spacing:.02em;}

.main-nav ul{display:flex; gap:6px; align-items:center;}
.main-nav a{
  padding:10px 14px; font-size:.98rem; font-weight:500; color:var(--ink-soft);
  border-bottom:2px solid transparent;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{ color:var(--rust); border-bottom-color:var(--rust);}

.header-actions{display:flex; align-items:center; gap:10px;}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:11px 20px; font-weight:600; font-size:.95rem;
  border-radius:var(--radius); border:1.5px solid transparent; cursor:pointer;
  transition:transform .15s ease, background-color .15s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);}
.btn-rust{background:var(--rust); color:#fff;}
.btn-rust:hover{background:var(--rust-dark);}
.btn-forest{background:var(--forest); color:#fff;}
.btn-forest:hover{background:var(--forest-dark);}
.btn-outline{background:transparent; color:var(--ink); border-color:var(--ink);}
.btn-outline:hover{background:var(--ink); color:#fff;}
.btn-ghost-white{background:transparent; color:#fff; border-color:rgba(255,255,255,.6);}
.btn-ghost-white:hover{background:rgba(255,255,255,.15);}

.nav-toggle{
  display:none; background:none; border:none; cursor:pointer; padding:8px;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after{
  content:''; display:block; width:24px; height:2px; background:var(--ink); margin:5px 0;
}

@media (max-width:900px){
  .main-nav{
    position:fixed; inset:78px 0 0 0; background:var(--sand);
    transform:translateX(100%); transition:transform .25s ease;
    padding:20px 24px; overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav ul{flex-direction:column; align-items:stretch; gap:2px;}
  .main-nav a{display:block; padding:16px 4px; border-bottom:1px solid var(--line); font-size:1.1rem;}
  .nav-toggle{display:block;}
  .header-actions .btn-text{display:none;}
}

/* ============== Hero ============== */
.hero{
  position:relative; background:var(--forest); color:#fff; overflow:hidden;
}
.hero-grid{
  display:grid; grid-template-columns:1.1fr 1fr; align-items:center; gap:40px;
  padding:64px 0 0;
}
.hero-copy .eyebrow-tag{
  display:inline-block; background:rgba(255,255,255,.12); color:#F1EBDD;
  padding:6px 14px; border-radius:2px; font-size:.85rem; margin-bottom:18px;
  border:1px solid rgba(255,255,255,.25);
}
.hero h1{color:#fff;}
.hero-copy p{color:#E7E2D3; font-size:1.08rem; max-width:46ch;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-top:26px;}
.hero-image{position:relative; align-self:end;}
.hero-image img{border-radius:2px 2px 0 0; width:100%; height:380px; object-fit:cover;}
.hero-stats{
  display:flex; gap:28px; margin-top:44px; padding-top:26px; border-top:1px solid rgba(255,255,255,.2);
  flex-wrap:wrap;
}
.hero-stats div strong{display:block; font-family:'Kanit',sans-serif; font-size:1.6rem; color:#fff;}
.hero-stats div span{font-size:.85rem; color:#CFC9B7;}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr; padding-top:40px;}
  .hero-image{order:-1;}
  .hero-image img{height:230px;}
}

/* ============== Sections ============== */
section{padding:72px 0;}
.section-card{background:var(--card);}
.section-head{max-width:64ch; margin-bottom:40px;}
.section-head .kicker{color:var(--rust); font-weight:600; font-size:.95rem; margin-bottom:8px; display:block;}

.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:26px;}
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:40px;}
@media (max-width:900px){ .grid-3{grid-template-columns:1fr;} .grid-2{grid-template-columns:1fr;} }

.card{
  background:#fff; border:1px solid var(--line); padding:28px 26px; border-radius:var(--radius);
}
.card h3{margin-bottom:.4em;}
.card p{color:var(--ink-soft); margin-bottom:0; font-size:.98rem;}
.card .num{
  font-family:'Kanit',sans-serif; font-weight:700; font-size:1.6rem; color:var(--rust); margin-bottom:10px; display:block;
}

.service-card{
  background:#fff; border:1px solid var(--line); overflow:hidden; border-radius:var(--radius);
}
.service-card img{height:210px; object-fit:cover; width:100%;}
.service-card .body{padding:22px 22px 26px;}
.service-card .price-tag{
  display:inline-block; background:var(--sand); color:var(--rust-dark); font-weight:700;
  padding:4px 12px; border-radius:2px; font-size:.9rem; margin-bottom:10px;
}

.process-steps{display:flex; flex-direction:column; gap:0;}
.process-step{
  display:grid; grid-template-columns:64px 1fr; gap:20px; padding:22px 0; border-bottom:1px solid var(--line);
}
.process-step:last-child{border-bottom:none;}
.process-step .step-no{
  font-family:'Kanit',sans-serif; font-weight:700; font-size:1.7rem; color:var(--forest);
}
.process-step h3{margin-bottom:.25em;}
.process-step p{color:var(--ink-soft); margin:0;}

.quote-block{
  background:var(--forest); color:#fff; padding:44px; border-radius:2px; position:relative;
}
.quote-block p{font-family:'Kanit',sans-serif; font-size:1.3rem; font-weight:400; color:#fff; line-height:1.5;}
.quote-block span{color:#CFC9B7; font-size:.9rem;}

.faq-item{border-bottom:1px solid var(--line); padding:20px 0;}
.faq-item h3{font-size:1.05rem; margin-bottom:8px; color:var(--forest-dark);}
.faq-item p{color:var(--ink-soft); margin:0;}

.cta-band{
  background:var(--rust); color:#fff; text-align:center; padding:64px 0;
}
.cta-band h2{color:#fff;}
.cta-band p{color:#F6E4DA; max-width:56ch; margin:0 auto 26px;}
.cta-actions{display:flex; gap:14px; justify-content:center; flex-wrap:wrap;}

.text-content h2{margin-top:1.6em;}
.text-content h2:first-child{margin-top:0;}
.text-content p{color:var(--ink-soft);}
.text-content ul{margin:0 0 1.2em; padding-left:0;}
.text-content ul li{
  padding-left:26px; position:relative; margin-bottom:.6em; color:var(--ink-soft);
}
.text-content ul li::before{
  content:''; position:absolute; left:0; top:.55em; width:10px; height:2px; background:var(--rust);
}

/* Page hero (inner pages) */
.page-hero{background:var(--forest); color:#fff; padding:56px 0 48px;}
.page-hero h1{color:#fff; margin-bottom:.3em;}
.page-hero p{color:#E7E2D3; max-width:60ch; margin:0;}
.breadcrumb{font-size:.85rem; color:#CFC9B7; margin-bottom:14px;}
.breadcrumb a{color:#fff; border-bottom:1px solid rgba(255,255,255,.4);}

/* Gallery grid */
.gallery-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px;}
.gallery-grid img{height:220px; object-fit:cover; border-radius:2px;}
@media (max-width:900px){ .gallery-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .gallery-grid{grid-template-columns:1fr;} }

/* Pricing / spec table */
.spec-table{width:100%; border-collapse:collapse; background:#fff;}
.spec-table th, .spec-table td{
  text-align:right; padding:14px 16px; border-bottom:1px solid var(--line); font-size:.95rem;
}
.spec-table th:first-child, .spec-table td:first-child{text-align:right;}
.spec-table thead th{background:var(--forest); color:#fff; font-family:'Kanit',sans-serif; font-weight:500;}
.spec-table tbody tr:hover{background:var(--sand);}

/* About page */
.value-list{display:grid; grid-template-columns:repeat(2,1fr); gap:20px;}
@media (max-width:700px){.value-list{grid-template-columns:1fr;}}
.timeline{border-left:2px solid var(--line); padding-left:26px; margin-left:6px;}
.timeline-item{position:relative; padding-bottom:30px;}
.timeline-item::before{
  content:''; position:absolute; left:-32px; top:4px; width:12px; height:12px; border-radius:50%;
  background:var(--rust); border:3px solid var(--sand);
}
.timeline-item:last-child{padding-bottom:0;}

/* Contact page */
.contact-grid{display:grid; grid-template-columns:1fr 1.1fr; gap:44px;}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}}
.contact-info-item{display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--line);}
.contact-info-item:last-child{border-bottom:none;}
.contact-info-item .icon{
  width:44px; height:44px; flex:none; background:var(--sand); border-radius:50%;
  display:flex; align-items:center; justify-content:center; color:var(--forest);
}
.contact-info-item h3{font-size:1rem; margin-bottom:2px;}
.contact-info-item p{margin:0; color:var(--ink-soft); font-size:.95rem;}

.form-field{margin-bottom:18px;}
.form-field label{display:block; font-weight:600; margin-bottom:6px; font-size:.92rem;}
.form-field input, .form-field textarea, .form-field select{
  width:100%; padding:12px 14px; border:1.5px solid var(--line); border-radius:2px;
  font-family:'Sarabun',sans-serif; font-size:1rem; background:#fff; color:var(--ink);
}
.form-field input:focus, .form-field textarea:focus{border-color:var(--forest);}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media (max-width:560px){.form-row{grid-template-columns:1fr;}}
.map-frame{border:0; width:100%; height:100%; min-height:300px; border-radius:2px;}

/* Privacy page */
.policy-toc{background:var(--card); border:1px solid var(--line); padding:24px 28px; margin-bottom:8px;}
.policy-toc h2{font-size:1.05rem; margin-bottom:12px;}
.policy-toc ol{padding-left:20px; margin:0;}
.policy-toc li{list-style:decimal; margin-bottom:6px; color:var(--ink-soft);}
.policy-toc a{color:var(--forest-dark); font-weight:500;}
.policy-toc a:hover{text-decoration:underline;}

/* ============== Footer ============== */
.site-footer{background:var(--ink); color:#D9D2C4; padding:56px 0 26px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:32px; margin-bottom:40px;}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:520px){.footer-grid{grid-template-columns:1fr;} }
.site-footer h4{color:#fff; font-size:.95rem; margin-bottom:16px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-text small{color:#B7AF9C;}
.site-footer p{color:#B7AF9C; font-size:.92rem;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#D9D2C4; font-size:.92rem;}
.footer-links a:hover{color:var(--rust);}
.footer-social{display:flex; gap:10px; margin-top:14px;}
.footer-social a{
  width:36px; height:36px; border:1px solid #4A443B; border-radius:50%;
  display:flex; align-items:center; justify-content:center; color:#D9D2C4;
}
.footer-social a:hover{background:var(--rust); border-color:var(--rust); color:#fff;}
.footer-bottom{
  border-top:1px solid #423C33; padding-top:22px; display:flex; justify-content:space-between;
  flex-wrap:wrap; gap:10px; font-size:.85rem; color:#8C8474;
}
.footer-bottom a{color:#8C8474;}
.footer-bottom a:hover{color:#D9D2C4;}