:root {
  --orange: #f15a24;
  --orange-dark: #c83e12;
  --ink: #1f2937;
  --muted: #5f6b7a;
  --line: #dfe5ec;
  --soft: #f3f5f8;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(31, 41, 55, .12);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans Thai", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
:focus-visible { outline: 3px solid rgba(241, 90, 36, .5); outline-offset: 4px; }
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 999;
  padding: .75rem 1rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
}
.skip-link:focus { top: 1rem; }
.container {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}
.section { padding: 72px 0; }
.narrow { max-width: 820px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  border-bottom: 1px solid rgba(223, 229, 236, .8);
  backdrop-filter: blur(16px);
}
.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--orange), #ff8a4c);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(241, 90, 36, .28);
  font-weight: 800;
}
.brand-text { font-size: 1.05rem; }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-menu a {
  padding: .7rem 1rem;
  border-radius: 999px;
  color: #334155;
  font-weight: 700;
}
.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
  color: var(--orange-dark);
  background: #fff0ea;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  border-radius: 2px;
}
.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  align-items: center;
  background:
    radial-gradient(circle at 80% 20%, rgba(241, 90, 36, .16), transparent 28rem),
    linear-gradient(135deg, #17202f 0%, #1f2937 48%, #eef2f7 48%, #eef2f7 100%);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  align-items: center;
  gap: 42px;
}
.hero-content { color: var(--white); }
.eyebrow {
  margin: 0 0 12px;
  color: var(--orange);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 20px;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 1.12;
  letter-spacing: 0;
}
h2 { font-size: clamp(1.65rem, 3vw, 2.65rem); line-height: 1.25; margin-bottom: 16px; }
h3 { font-size: 1.22rem; line-height: 1.35; margin-bottom: 10px; }
.hero-subtitle { max-width: 720px; color: #e6edf5; font-size: 1.2rem; }
.hero-actions, .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.phone-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.phone-strip a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: .55rem .85rem;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: 999px;
  color: var(--white);
  background: rgba(255, 255, 255, .08);
  font-weight: 800;
}
.button-stack {
  display: grid;
  gap: 10px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .82rem 1.2rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 800;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 16px 30px rgba(241, 90, 36, .28);
}
.btn-primary:hover { background: var(--orange-dark); }
.btn-secondary { background: var(--ink); color: var(--white); }
.btn-ghost { border-color: rgba(255, 255, 255, .35); color: var(--white); }
.hero-panel { min-height: 520px; display: grid; place-items: center; }
.warehouse-card {
  width: min(100%, 520px);
  min-height: 420px;
  border: 1px solid rgba(255, 255, 255, .4);
  border-radius: 28px;
  background:
    linear-gradient(160deg, rgba(255,255,255,.96), rgba(255,255,255,.78)),
    repeating-linear-gradient(90deg, #d7dde6 0 12px, #c5ced9 12px 24px);
  box-shadow: var(--shadow);
  padding: 28px;
  display: grid;
  align-content: end;
  gap: 22px;
}
.roof {
  height: 145px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, transparent 0 15%, var(--orange) 15% 17%, transparent 17%),
    linear-gradient(160deg, #293241, #111827);
  box-shadow: inset 0 -20px 0 rgba(255,255,255,.12);
}
.supply-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stack {
  min-height: 100px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  font-weight: 800;
}
.cement { background: #e7eaef; color: #4b5563; }
.steel { background: #273244; color: var(--white); }
.brick { background: #f15a24; color: var(--white); }
.delivery-strip {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 16px;
  border-radius: 16px;
  background: #111827;
  color: var(--white);
  font-weight: 800;
}
.section-heading { max-width: 780px; margin: 0 auto 34px; text-align: center; }
.align-left { margin-inline: 0; text-align: left; }
.section-heading p, .content-card p, .feature-card p, .product-card p, .contact-card p, .promo-card p, .gallery-card p { color: var(--muted); }
.gray-section { background: var(--soft); }
.feature-grid, .product-grid, .contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.contact-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feature-card, .product-card, .contact-card, .content-card, .promo-card, .gallery-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 24px;
  box-shadow: 0 10px 24px rgba(31, 41, 55, .06);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.feature-card:hover, .product-card:hover, .contact-card:hover, .promo-card:hover, .gallery-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: rgba(241, 90, 36, .35);
}
.icon, .product-icon, .contact-icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: #fff0ea;
  color: var(--orange-dark);
  font-weight: 900;
}
.product-icon, .contact-icon { width: 58px; height: 58px; font-size: 1.35rem; }
.product-card a, .promo-card a { color: var(--orange-dark); font-weight: 800; }
.split {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 36px;
  align-items: center;
}
.mini-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.mini-card {
  min-height: 148px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: linear-gradient(145deg, #1f2937, #111827);
  color: var(--white);
  font-weight: 800;
  box-shadow: var(--shadow);
}
.mini-card:nth-child(even) { background: linear-gradient(145deg, var(--orange), var(--orange-dark)); }
.cta-card {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  border-radius: 24px;
  padding: 34px;
  background: var(--white);
  box-shadow: var(--shadow);
}
.page-hero {
  background:
    radial-gradient(circle at 80% 10%, rgba(241, 90, 36, .18), transparent 24rem),
    linear-gradient(135deg, #1f2937, #111827);
  color: var(--white);
}
.page-hero p:not(.eyebrow) { color: #dbe3ec; font-size: 1.12rem; }
.value-stack { display: grid; gap: 18px; }
.about-hero {
  min-height: calc(100vh - 74px);
  display: grid;
  align-items: center;
  background:
    radial-gradient(circle at 88% 10%, rgba(241, 90, 36, .26), transparent 22rem),
    linear-gradient(135deg, rgba(17, 24, 39, .94), rgba(31, 41, 55, .9)),
    repeating-linear-gradient(90deg, #e5e7eb 0 18px, #f8fafc 18px 36px);
  color: var(--white);
  overflow: hidden;
}
.about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .75fr);
  align-items: center;
  gap: 34px;
}
.about-hero-content h1 {
  max-width: 880px;
}
.about-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}
.language-switch {
  display: inline-flex;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
}
.language-switch button {
  min-width: 54px;
  min-height: 36px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--white);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.language-switch button.is-active {
  background: var(--orange);
  box-shadow: 0 10px 24px rgba(241, 90, 36, .28);
}
.nav-language-switch {
  flex: 0 0 auto;
  border-color: var(--line);
  background: #fff7f3;
}
.nav-language-switch button {
  min-width: 46px;
  color: var(--ink);
}
.nav-language-switch button.is-active {
  color: var(--white);
}
.about-trust-panel {
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 28px;
  padding: 26px;
  background: rgba(255, 255, 255, .1);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .22);
  backdrop-filter: blur(14px);
}
.trust-badge {
  display: grid;
  gap: 4px;
  padding: 24px;
  border-radius: 22px;
  background: var(--white);
  color: var(--ink);
}
.trust-badge strong {
  color: var(--orange);
  font-size: clamp(3.4rem, 7vw, 5.6rem);
  line-height: .9;
  font-weight: 900;
}
.trust-badge span {
  color: var(--ink);
  font-weight: 800;
}
.trust-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.trust-list span {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .12);
  color: #eef2f7;
  font-weight: 700;
}
.about-story-section {
  background:
    linear-gradient(180deg, #ffffff, #f8fafc);
}
.about-story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, .75fr);
  gap: 22px;
  align-items: stretch;
}
.story-card {
  border-radius: 28px;
  padding: clamp(26px, 5vw, 46px);
  background: var(--white);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.story-card p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.05rem;
}
.about-metrics {
  display: grid;
  gap: 16px;
}
.about-metrics article {
  display: grid;
  align-content: center;
  min-height: 132px;
  padding: 22px;
  border-radius: 22px;
  background: linear-gradient(135deg, #1f2937, #111827);
  color: var(--white);
  box-shadow: var(--shadow);
}
.about-metrics article:nth-child(2) {
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
}
.about-metrics strong {
  font-size: 2.3rem;
  line-height: 1;
}
.about-metrics span {
  margin-top: 8px;
  font-weight: 800;
}
.about-feature-grid .feature-card {
  min-height: 260px;
}
.modern-timeline li {
  border-left: 0;
  border-top: 5px solid var(--orange);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 24px rgba(31, 41, 55, .06);
}
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.timeline li {
  display: grid;
  gap: 6px;
  padding: 22px;
  border-left: 5px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--soft);
}
.timeline strong { color: var(--orange-dark); }
.gallery-grid, .promo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.gallery-visual {
  min-height: 220px;
  margin: -24px -24px 22px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--soft);
}
.gallery-visual.material {
  background:
    linear-gradient(135deg, rgba(241, 90, 36, .82), rgba(31, 41, 55, .8)),
    repeating-linear-gradient(90deg, #cbd5e1 0 18px, #eef2f7 18px 36px);
}
.gallery-visual.delivery {
  background:
    linear-gradient(160deg, rgba(31, 41, 55, .88), rgba(241, 90, 36, .75)),
    linear-gradient(90deg, #e5e7eb 0 35%, #9ca3af 35% 48%, #e5e7eb 48% 100%);
}
.gallery-visual.site {
  background:
    linear-gradient(140deg, rgba(241, 90, 36, .72), rgba(17, 24, 39, .86)),
    repeating-linear-gradient(45deg, #d1d5db 0 14px, #f3f4f6 14px 28px);
}
.promo-card.large {
  grid-column: span 2;
  background: linear-gradient(135deg, #1f2937, #111827);
  color: var(--white);
}
.promo-card.large p { color: #dbe3ec; }
.map-panel {
  min-height: 340px;
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(241, 90, 36, .9), rgba(31, 41, 55, .9)),
    repeating-linear-gradient(90deg, #e5e7eb 0 18px, #f8fafc 18px 36px);
  box-shadow: var(--shadow);
}
.map-panel a {
  min-height: 340px;
  display: grid;
  place-items: center;
  color: var(--white);
  font-size: 1.4rem;
  font-weight: 900;
}
.site-footer {
  padding: 48px 0;
  background: #111827;
  color: #dbe3ec;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
}
.footer-brand { color: var(--white); margin-bottom: 12px; }
.site-footer h2 { color: var(--white); font-size: 1rem; margin-bottom: 12px; }
.site-footer a:not(.brand) { display: block; margin: 7px 0; color: #dbe3ec; }
.site-footer a:hover { color: var(--orange); }
.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 999px;
  background: var(--orange);
  color: var(--white);
  font-size: 1.3rem;
  font-weight: 900;
  box-shadow: 0 14px 30px rgba(241, 90, 36, .3);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .2s ease, transform .2s ease;
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .nav { gap: 10px; }
  .nav-toggle { display: block; }
  .brand { min-width: 0; }
  .nav-language-switch {
    margin-left: auto;
  }
  .nav-language-switch button {
    min-width: 42px;
    min-height: 34px;
    font-size: .9rem;
  }
  .nav-menu {
    position: absolute;
    inset: 74px 16px auto;
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--white);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity .2s ease, transform .2s ease;
  }
  .nav-menu.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .nav-menu a { border-radius: 12px; }
  .hero { background: linear-gradient(160deg, #17202f, #1f2937 68%, #eef2f7 68%); }
  .hero-grid, .split, .about-hero-grid, .about-story-grid { grid-template-columns: 1fr; }
  .hero-panel { min-height: auto; }
  .feature-grid, .product-grid, .contact-grid, .gallery-grid, .promo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .promo-card.large { grid-column: span 2; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 24px, 1120px); }
  .section { padding: 54px 0; }
  .brand-text {
    max-width: 112px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: .94rem;
  }
  .hero { min-height: auto; padding-top: 26px; }
  h1 { font-size: 2.25rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-actions, .cta-actions { flex-direction: column; }
  .about-toolbar { align-items: flex-start; flex-direction: column; }
  .btn { width: 100%; }
  .warehouse-card { min-height: 330px; padding: 18px; border-radius: 20px; }
  .roof { height: 110px; }
  .supply-row, .mini-grid { grid-template-columns: 1fr; }
  .feature-grid, .product-grid, .contact-grid, .gallery-grid, .promo-grid { grid-template-columns: 1fr; }
  .promo-card.large { grid-column: auto; }
  .cta-card { display: grid; padding: 24px; }
  .gallery-visual { min-height: 180px; }
}

@media (max-width: 380px) {
  .brand-text { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}


/* Local SEO v1 additions */
.nav-menu { flex-wrap: wrap; justify-content: center; }
.nav-menu a { padding-inline: .78rem; }
.footer-address { font-style: normal; color: #dbe3ec; margin-top: 10px; max-width: 34rem; }
.footer-hours { margin: 8px 0 0; color: #f8fafc; font-weight: 800; }
.footer-note { width: min(1120px, calc(100% - 32px)); margin: 28px auto 0; color: #94a3b8; font-size: .92rem; }
.local-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.local-card, .faq-card, .note-card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); padding: 24px; box-shadow: 0 10px 24px rgba(31, 41, 55, .06); }
.local-card strong { display: block; margin-bottom: 8px; color: var(--orange-dark); }
.faq-list { display: grid; gap: 12px; }
.faq-list details { border: 1px solid var(--line); border-radius: 14px; background: var(--white); padding: 16px 18px; box-shadow: 0 8px 18px rgba(31, 41, 55, .04); }
.faq-list summary { cursor: pointer; font-weight: 800; color: var(--ink); }
.faq-list p { margin: 12px 0 0; color: var(--muted); }
.breadcrumb-inline { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: #dbe3ec; font-weight: 700; }
.breadcrumb-inline a { color: #ffffff; text-decoration: underline; text-underline-offset: 3px; }
.product-card .card-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.product-card .card-actions a { display: inline-flex; align-items: center; min-height: 36px; }
@media (max-width: 900px) { .local-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .local-grid { grid-template-columns: 1fr; } }