/* ===== Jinglin Container — Thai static site stylesheet ===== */
:root {
  --navy: #0d2b4e;
  --navy-2: #123a6b;
  --blue: #1c5aa8;
  --accent: #f5a623;
  --accent-dark: #d98d0d;
  --ink: #1f2a37;
  --muted: #5b6b7c;
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --line: #e3e9f1;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(13, 43, 78, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans Thai", "Segoe UI", Tahoma, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16.5px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.3; color: var(--navy); margin: 0 0 .6em; }
h1 { font-size: clamp(1.8rem, 3.4vw, 2.7rem); font-weight: 800; }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 860px; }
.center { text-align: center; margin-top: 2rem; }
.center-title { text-align: center; margin-bottom: 1.5rem; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--navy); color: #fff;
  padding: .5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 8px; }

/* ===== Buttons ===== */
.btn {
  display: inline-block; padding: .7rem 1.5rem; border-radius: 999px;
  font-weight: 600; border: 2px solid transparent; cursor: pointer;
  transition: all .2s ease; font-size: 1rem; text-align: center;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #23160a; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; }
.btn-primary { background: var(--navy-2); color: #fff; }
.btn-primary:hover { background: var(--navy); color: #fff; }
.btn-outline { border-color: var(--navy-2); color: var(--navy-2); background: transparent; }
.btn-outline:hover { background: var(--navy-2); color: #fff; }
.btn-ghost { border-color: rgba(255,255,255,.7); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.15); }
.btn-lg { padding: .85rem 2rem; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 1.5rem; padding: .65rem 20px; }
.brand { display: flex; align-items: center; gap: .7rem; }
.brand img { width: 52px; height: 52px; border-radius: 10px; object-fit: cover; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { color: var(--navy); font-size: 1.05rem; }
.brand-text small { color: var(--muted); font-size: .72rem; letter-spacing: .02em; }
.main-nav { display: flex; list-style: none; margin: 0 0 0 auto; padding: 0; gap: .3rem; }
.main-nav a {
  display: block; padding: .55rem .95rem; border-radius: 8px; color: var(--ink);
  font-weight: 500;
}
.main-nav a:hover, .main-nav a.active { background: var(--bg-alt); color: var(--navy-2); }
.main-nav a.active { font-weight: 700; }
.header-cta { margin-left: .5rem; flex-shrink: 0; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: .4rem; margin-left: auto; }
.nav-toggle span { display: block; width: 24px; height: 2.5px; background: var(--navy); margin: 5px 0; border-radius: 2px; }

/* ===== Hero ===== */
.hero {
  background:
    linear-gradient(115deg, rgba(9,28,52,.92) 0%, rgba(18,58,107,.82) 55%, rgba(28,90,168,.55) 100%),
    url(/img/banner.jpg) center/cover no-repeat;
  color: #fff; padding: clamp(4rem, 9vw, 7.5rem) 0;
}
.hero-text { max-width: 760px; }
.hero .eyebrow { color: var(--accent); }
.hero h1 { color: #fff; }
.hero p { font-size: 1.12rem; color: rgba(255,255,255,.92); max-width: 640px; }
.hero-actions { display: flex; gap: .9rem; flex-wrap: wrap; margin-top: 1.6rem; }
.eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: .12em;
  font-size: .78rem; font-weight: 700; color: var(--blue); margin-bottom: .6rem;
}

/* ===== Feature strip ===== */
.features-strip { background: var(--navy); color: #fff; padding: 2.2rem 0; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.feature h3 { color: var(--accent); font-size: 1.05rem; margin-bottom: .3rem; }
.feature p { color: rgba(255,255,255,.82); margin: 0; font-size: .92rem; }

/* ===== Sections ===== */
.section { padding: clamp(2.8rem, 6vw, 4.5rem) 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 720px; margin: 0 auto 2.4rem; text-align: center; }

/* ===== Product cards ===== */
.product-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem;
}
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .2s ease, box-shadow .2s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.product-card-img { display: block; aspect-ratio: 1/1; overflow: hidden; background: var(--bg-alt); }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-body { padding: 1.1rem 1.2rem 1.3rem; display: flex; flex-direction: column; gap: .4rem; flex: 1; }
.product-card-body h3 a { color: var(--navy); }
.product-card-body p { color: var(--muted); font-size: .9rem; flex: 1; }
.text-link { font-weight: 600; color: var(--blue); }

/* ===== Split ===== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: center; }
.split-media img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; }
.about-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.about-cols h3 { color: var(--navy-2); }

/* ===== Gallery ===== */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.3rem; }
.gallery-grid figure { margin: 0; }
.gallery-grid img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 1/1; object-fit: cover; width: 100%; }
.gallery-grid figcaption { text-align: center; color: var(--muted); font-size: .9rem; margin-top: .5rem; }

/* ===== Values ===== */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.value-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem 1.5rem; border-top: 4px solid var(--accent);
}
.value-card p { color: var(--muted); margin: 0; font-size: .95rem; }

/* ===== CTA band ===== */
.cta-band {
  background: linear-gradient(120deg, var(--navy) 0%, var(--blue) 100%);
  color: #fff; padding: 2.8rem 0;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: .3rem; }
.cta-band p { margin: 0; color: rgba(255,255,255,.88); max-width: 620px; }

/* ===== Page hero & breadcrumb ===== */
.page-hero {
  background: linear-gradient(115deg, var(--navy) 0%, var(--blue) 100%);
  color: #fff; padding: 3rem 0;
}
.page-hero h1 { color: #fff; margin-bottom: .3rem; }
.page-hero p { margin: 0; color: rgba(255,255,255,.88); }
.breadcrumb { background: var(--bg-alt); border-bottom: 1px solid var(--line); }
.breadcrumb ol { display: flex; flex-wrap: wrap; list-style: none; margin: 0; padding: .6rem 0; gap: .4rem; font-size: .88rem; }
.breadcrumb li + li::before { content: "/"; margin-right: .4rem; color: var(--muted); }
.breadcrumb a { color: var(--blue); }

/* ===== Product detail ===== */
.detail-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2.6rem; align-items: start; }
.detail-media img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; }
.detail-info .lead { font-size: 1.05rem; color: var(--muted); }
.spec-table {
  width: 100%; border-collapse: collapse; margin: 1.2rem 0 1.5rem;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.spec-table th, .spec-table td { padding: .65rem .95rem; border-bottom: 1px solid var(--line); text-align: left; font-size: .95rem; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 46%; background: var(--bg-alt); color: var(--navy); font-weight: 600; }
.detail-actions { display: flex; gap: .9rem; flex-wrap: wrap; }
.adv-list { padding-left: 1.3rem; }
.adv-list li { margin-bottom: .55rem; }
.container.narrow h2 { margin-top: 1.8rem; }
.container.narrow h2:first-child { margin-top: 0; }

/* ===== FAQ ===== */
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: .9rem; overflow: hidden; }
.faq-item h3 { margin: 0; }
.faq-q {
  width: 100%; background: none; border: 0; text-align: left; cursor: pointer;
  padding: 1.05rem 1.3rem; font: inherit; font-weight: 600; color: var(--navy);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-icon { color: var(--accent-dark); font-size: 1.4rem; line-height: 1; transition: transform .2s; }
.faq-q[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-a { padding: 0 1.3rem 1.1rem; color: var(--muted); }
.faq-a p { margin: 0; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 2.6rem; align-items: start; }
.contact-info p { color: var(--muted); }
.contact-note {
  margin-top: 1.6rem; background: var(--bg-alt); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.2rem 1.4rem;
}
.contact-note ul { margin: .4rem 0 0; padding-left: 1.2rem; color: var(--muted); }
.contact-form {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem; box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-field { margin-bottom: 1.05rem; }
.form-field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: .35rem; color: var(--navy); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: .7rem .9rem; border: 1.5px solid var(--line); border-radius: 10px;
  font: inherit; color: var(--ink); background: #fff; transition: border-color .2s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(28,90,168,.12);
}
.hp-field { position: absolute; left: -9999px; top: -9999px; height: 1px; width: 1px; overflow: hidden; }
#form-status { margin-top: 1rem; font-weight: 600; }
#form-status.success {
  display: flex; gap: .7rem; align-items: flex-start; background: #e8f7ee;
  border: 1.5px solid #35a565; color: #1c6b3d; border-radius: 10px; padding: 1rem 1.2rem;
}
#form-status.error { color: #b3261e; }
.noscript-note { color: var(--muted); font-size: .92rem; margin-top: 1rem; }

/* ===== Footer ===== */
.site-footer { background: var(--navy); color: rgba(255,255,255,.85); margin-top: 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1.2fr 1.4fr; gap: 2rem;
  padding: 3rem 20px 2.2rem;
}
.site-footer h3 { color: #fff; font-size: 1.02rem; margin-bottom: .8rem; }
.site-footer p { font-size: .92rem; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: .45rem; }
.footer-links a { color: rgba(255,255,255,.85); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); padding: 1.1rem 0; }
.footer-bottom p { margin: 0; font-size: .85rem; color: rgba(255,255,255,.65); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-cols { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: .8rem 1.2rem 1.2rem;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .header-cta { display: none; }
  .split, .detail-grid, .contact-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 560px) {
  .product-grid, .gallery-grid, .values-grid, .form-row { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  body { font-size: 15.5px; }
  .contact-form { padding: 1.2rem; }
}