:root {
  --color-dark: #221f20;
  --color-primary: #e27939;
  --color-primary-dark: #c1601f;
  --color-cream: #fdf6f0;
  --color-white: #ffffff;
  --color-gray: #6b6664;
  --color-border: #ece3da;
  --font-main: "Noto Sans Thai", "Prompt", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max-width: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  color: var(--color-dark);
  line-height: 1.7;
  background: var(--color-white);
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

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

h1, h2, h3, h4 { line-height: 1.35; font-weight: 700; }

section { padding: 80px 0; }

.section-label {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: .5px;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.section-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
#services .section-head h2 { white-space: nowrap; }
@media (max-width: 640px) { #services .section-head h2 { white-space: normal; } }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 14px; }
.section-head p { color: var(--color-gray); font-size: 1.05rem; }

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1rem;
  transition: transform .15s ease, box-shadow .15s ease;
  border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 8px 20px rgba(226,121,57,.3); }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline { border-color: var(--color-dark); color: var(--color-dark); }
.btn-outline:hover { background: var(--color-dark); color: #fff; }
.btn-outline-light { border-color: #fff; color: #fff; }
.btn-outline-light:hover { background: #fff; color: var(--color-dark); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(6px);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; max-width: var(--max-width); margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; }
.brand img { height: 120px; width: auto; }
.nav-links { display: flex; gap: 32px; align-items: center; list-style: none; }
.nav-links a { font-weight: 600; font-size: .96rem; white-space: nowrap; }
.nav-links a:hover { color: var(--color-primary); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.lang-dropdown { position: relative; }
.lang-toggle { background: none; border: none; font-size: 1.25rem; line-height: 1; cursor: pointer; padding: 6px; border-radius: 50%; transition: background .15s; }
.lang-toggle:hover { background: var(--color-cream); }
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0; z-index: 200;
  background: #fff; border: 1px solid var(--color-border); border-radius: 12px;
  box-shadow: 0 12px 28px rgba(0,0,0,.14); padding: 6px; min-width: 150px;
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.lang-dropdown.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-option { display: flex; align-items: center; gap: 8px; padding: 9px 10px; border-radius: 8px; font-weight: 600; font-size: .9rem; color: var(--color-dark); }
.lang-option:hover { background: var(--color-cream); }
.lang-option.lang-current { color: var(--color-primary); pointer-events: none; }
.nav-phone { font-weight: 700; white-space: nowrap; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; cursor: pointer; }

@media (max-width: 1150px) {
  .nav-links { position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; gap: 0; border-bottom: 1px solid var(--color-border); display: none; }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; border-top: 1px solid var(--color-border); }
  .nav-links a { display: block; padding: 16px 24px; white-space: normal; }
  .nav-toggle { display: block; }
  .nav-phone { display: none; }
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #fff 55%, var(--color-cream) 55%);
  padding: 90px 0 70px;
}
.hero .container { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2rem, 4vw, 2.85rem); margin-bottom: 20px; }
.hero h1 span {
  display: inline-block;
  margin: 0 .15em;
  color: var(--color-primary); font-size: 1.2em; font-weight: 900;
  animation: trustPulse 2.4s ease-in-out infinite;
}
@keyframes trustPulse {
  0%, 100% { color: var(--color-primary-dark); transform: scale(1); }
  50% { color: #f6c99a; transform: scale(1.06); }
}
@media (prefers-reduced-motion: reduce) {
  .hero h1 span { animation: none; }
}
.hero p.lead { font-size: 1.15rem; color: var(--color-gray); margin-bottom: 30px; max-width: 540px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-badges { display: flex; gap: 28px; flex-wrap: wrap; }
.hero-badges div { font-size: .9rem; color: var(--color-gray); }
.hero-badges strong { display: block; font-size: 1.5rem; color: var(--color-dark); }
.hero-visual {
  background: var(--color-dark);
  border-radius: 18px;
  padding: 36px;
  color: #fff;
}
.hero-visual h3 { color: var(--color-primary); font-size: 1.1rem; margin-bottom: 18px; }
.hero-visual ul { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.hero-visual li { display: flex; gap: 12px; align-items: flex-start; font-size: .96rem; }
.hero-visual li::before { content: "✓"; color: var(--color-primary); font-weight: 800; }

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero { padding: 50px 0; }
}

/* Trust bar */
.trust-bar { background: var(--color-dark); color: #fff; padding: 36px 0; }
.trust-bar .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.trust-bar strong { display: block; font-size: 1.9rem; color: var(--color-primary); }
.trust-bar span { font-size: .9rem; color: #cfcac8; }
@media (max-width: 700px) { .trust-bar .container { grid-template-columns: repeat(2, 1fr); } }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 32px 26px;
  transition: box-shadow .2s ease, transform .2s ease;
}
.service-card:hover { box-shadow: 0 16px 30px rgba(34,31,32,.08); transform: translateY(-4px); }
.service-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: var(--color-cream); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 18px; font-weight: 800;
}
.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.service-card p { color: var(--color-gray); font-size: .96rem; }
@media (max-width: 900px) { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .services-grid { grid-template-columns: 1fr; } }

/* Why us */
.why-us { background: var(--color-cream); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-card { background: #fff; border-radius: 14px; padding: 28px 22px; text-align: center; border: 1px solid var(--color-border); }
.why-card .num { font-size: 2rem; font-weight: 800; color: var(--color-primary); margin-bottom: 10px; }
.why-card h4 { font-size: 1.02rem; margin-bottom: 8px; }
.why-card p { font-size: .9rem; color: var(--color-gray); }
@media (max-width: 900px) { .why-grid { grid-template-columns: 1fr 1fr; } }

.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-card { background: #fff; border-radius: 14px; padding: 26px 20px; text-align: center; border: 1px solid var(--color-border); }
.process-num {
  width: 40px; height: 40px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--color-primary); color: #fff; font-weight: 800; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
}
.process-card h4 { font-size: 1rem; margin-bottom: 8px; }
.process-card p { font-size: .88rem; color: var(--color-gray); }
@media (max-width: 900px) { .process-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .process-grid { grid-template-columns: 1fr; } }

.documents-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.document-card { background: var(--color-cream); border-radius: 14px; padding: 30px; }
.document-card h4 { font-size: 1.1rem; margin-bottom: 18px; }
.document-card ul { list-style: none; }
.document-card li { position: relative; padding-left: 26px; margin-bottom: 12px; font-size: .93rem; color: var(--color-gray); }
.document-card li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--color-primary); font-weight: 800; }
@media (max-width: 900px) { .documents-grid { grid-template-columns: 1fr; } }

/* Team */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.team-card { border: 1px solid var(--color-border); border-radius: 14px; padding: 26px 20px; text-align: center; }
.avatar {
  width: 76px; height: 76px; border-radius: 50%; margin: 0 auto 16px;
  background: var(--color-dark); color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.3rem;
}
.team-card h3 { font-size: 1.05rem; margin-bottom: 4px; }
.team-card .role { color: var(--color-primary); font-weight: 700; font-size: .85rem; margin-bottom: 12px; }
.team-card p { font-size: .85rem; color: var(--color-gray); text-align: left; margin-bottom: 6px; }
.team-card .edu { font-size: .78rem; color: #9c9694; text-align: left; }
@media (max-width: 900px) { .team-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .team-grid { grid-template-columns: 1fr; } }

/* Articles */
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card { border: 1px solid var(--color-border); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.article-thumb { background: linear-gradient(135deg, var(--color-primary), #f4a261); height: 130px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 2rem; }
.article-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.article-body .tag { font-size: .78rem; color: var(--color-primary); font-weight: 700; margin-bottom: 8px; }
.article-body h3 { font-size: 1.05rem; margin-bottom: 10px; }
.article-body p { font-size: .9rem; color: var(--color-gray); margin-bottom: 16px; flex: 1; }
.article-body .read-more { font-weight: 700; font-size: .9rem; color: var(--color-dark); }
.article-body .read-more:hover { color: var(--color-primary); }
@media (max-width: 900px) { .articles-grid { grid-template-columns: 1fr; } }
.articles-more { text-align: center; margin-top: 32px; }

/* Contact */
.contact { background: var(--color-dark); color: #fff; }
.contact .section-head p { color: #cfcac8; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { background: rgba(255,255,255,.06); border-radius: 14px; padding: 28px 24px; }
.contact-card h4 { color: var(--color-primary); margin-bottom: 10px; font-size: 1rem; }
.contact-card p, .contact-card a { font-size: .95rem; color: #e9e5e3; }
.map-embed { margin-top: 40px; border-radius: 14px; overflow: hidden; border: 1px solid rgba(255,255,255,.15); }
.map-embed iframe { width: 100%; height: 320px; border: 0; display: block; }

/* Footer */
.site-footer { background: #171514; color: #b8b2af; padding: 48px 0 24px; font-size: .88rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-grid h5 { color: #fff; margin-bottom: 14px; font-size: .95rem; }
.footer-grid ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand img { height: 32px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; text-align: center; }
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }

/* Article page (single post) */
.post-hero { background: var(--color-cream); padding: 60px 0 40px; }
.breadcrumb { font-size: .85rem; color: var(--color-gray); margin-bottom: 16px; }
.breadcrumb a:hover { color: var(--color-primary); }
.post-hero h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.post-meta { color: var(--color-gray); font-size: .9rem; margin-top: 12px; }
.post-body { max-width: 760px; margin: 0 auto; padding: 50px 24px; }
.post-body h2 { font-size: 1.3rem; margin: 34px 0 14px; }
.post-body p { margin-bottom: 16px; color: #3a3736; }
.post-body ul, .post-body ol { margin: 0 0 16px 20px; color: #3a3736; }
.post-body li { margin-bottom: 8px; }
.post-cta { background: var(--color-cream); border-radius: 14px; padding: 28px; margin-top: 40px; text-align: center; }
.post-cta h3 { margin-bottom: 12px; }
.related-links { max-width: 760px; margin: 0 auto 60px; padding: 0 24px; }
.related-links h4 { margin-bottom: 14px; }
.related-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.related-links a { font-weight: 700; color: var(--color-primary); }