:root {
  --bg: #eaf0fa;
  --ink: #10213d;
  --primary: #0e3b78;
  --accent: #2f6eb8;
  --panel: #f8fbff;
  --stroke: #c1d2e9;
  --font-body: "Noto Sans Thai", "Sukhumvit Set", "Thonburi", "Prompt", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, #d4e2f6 0%, transparent 34%),
    radial-gradient(circle at 88% 15%, #dae8fa 0%, transparent 38%),
    linear-gradient(180deg, #f5f8fe 0%, #eaf0fa 100%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 5vw;
  background: rgba(234, 240, 250, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(16, 33, 61, 0.12);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand-logo {
  width: 44px;
  height: 44px;
}

.brand-top,
.brand-sub {
  margin: 0;
}

.brand-top {
  font-size: 0.88rem;
  font-weight: 700;
}

.brand-sub {
  font-size: 0.68rem;
  opacity: 0.8;
  letter-spacing: 0.06em;
}

.main-nav {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav-link {
  position: relative;
  text-decoration: none;
  color: #1a3258;
  font-weight: 600;
  padding: 0.5rem 0.7rem;
  border-radius: 10px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.6rem;
  right: 0.6rem;
  bottom: 0.28rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.nav-link:hover {
  background: #e0eaf8;
  color: var(--primary);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link.active {
  background: #d6e5f8;
  color: var(--primary);
}

.nav-link.active::after {
  transform: scaleX(1);
}

main {
  padding: 1.4rem 5vw 3rem;
}

.section {
  margin-top: 1rem;
  padding: 1.2rem;
  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(16, 33, 61, 0.06);
  scroll-margin-top: 88px;
}

.clean-hero {
  min-height: 320px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 1rem;
  background: linear-gradient(135deg, #f8fbff, #e6effb);
}

.hero-media {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-media img {
  width: 100%;
  max-width: 460px;
  border-radius: 14px;
  border: 1px solid #c8d8ed;
  background: #f2f7ff;
  box-shadow: 0 10px 24px rgba(16, 33, 61, 0.1);
}

.hero-content h1 {
  margin: 0.2rem 0 0.5rem;
  font-size: clamp(1.8rem, 3.1vw, 2.8rem);
}

.hero-kicker {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.hero-highlights {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
  max-width: 760px;
}

.hero-highlights li {
  background: #eef5ff;
  border: 1px solid #c8d8ed;
  border-radius: 999px;
  padding: 0.48rem 0.8rem;
  font-weight: 600;
  color: #153867;
}

.seo-tags {
  margin-top: 0.9rem;
}

.seo-tags-title {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: #2a4f87;
  font-weight: 700;
  text-transform: uppercase;
}

.seo-tags p {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.seo-tags span {
  display: inline-block;
  padding: 0.26rem 0.62rem;
  border-radius: 999px;
  background: #dce9fb;
  border: 1px solid #b6cdef;
  color: #123a72;
  font-size: 0.84rem;
  font-weight: 600;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border: none;
  border-radius: 999px;
  padding: 0.7rem 1rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #0a2f5d);
}

.btn-outline {
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
}

.section-head h2 {
  margin: 0.2rem 0 0.8rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
}

.brand-carousel {
  --brand-gap: 12px;
  display: block;
}

.brand-track-wrap {
  overflow: hidden;
  padding: 0.25rem;
  border-radius: 14px;
  background: linear-gradient(180deg, #f7faff, #edf4ff);
  border: 1px solid #cddcf0;
}

.brand-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--brand-gap);
  transition: opacity 0.2s ease;
}

.brand-item {
  width: 100%;
}

.brand-tile {
  background: #e8f1fd;
  border: 1px solid #bfd2ed;
  border-radius: 12px;
  padding: 0.6rem;
  text-align: center;
}

.brand-tile img {
  width: 100%;
  border-radius: 8px;
  display: block;
}

.brand-tile p {
  margin: 0.45rem 0 0;
  font-weight: 600;
}

.product-carousel {
  --product-gap: 12px;
  display: block;
}

.product-track-wrap {
  overflow: hidden;
  padding: 0.25rem;
  border-radius: 14px;
  background: linear-gradient(180deg, #f7faff, #edf4ff);
  border: 1px solid #cddcf0;
}

.product-track {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: var(--product-gap);
  transition: opacity 0.2s ease;
}

.product-tile {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background: #f4f9ff;
}

.product-tile:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(16, 33, 61, 0.12);
}

.product-pager {
  margin-top: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
}

.pager-btn,
.pager-number {
  border: 1px solid #bcd0eb;
  background: #edf4ff;
  color: #123a72;
  border-radius: 9px;
  padding: 0.38rem 0.62rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.pager-btn {
  min-width: 64px;
}

.pager-numbers {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
}

.pager-number.active {
  background: #d3e3f8;
  border-color: #8cb0de;
}

.pager-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.grid {
  display: grid;
  gap: 0.8rem;
}

.cards-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tile {
  padding: 1rem;
  border: 1px solid #c8d8ed;
  border-radius: 12px;
  background: #eef5ff;
}

.about-text {
  margin: 0;
  line-height: 1.8;
}

.contact-info-wrap {
  display: grid;
  gap: 0.9rem;
}

.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.contact-info-grid article {
  background: #eef5ff;
  border: 1px solid #c5d7ef;
  border-radius: 12px;
  padding: 0.85rem;
}

.contact-info-grid h3 {
  margin: 0 0 0.3rem;
  font-size: 1rem;
}

.contact-info-grid p {
  margin: 0;
  line-height: 1.6;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.contact-map iframe {
  width: 100%;
  min-height: 320px;
  border: 0;
  border-radius: 12px;
  box-shadow: 0 8px 18px rgba(16, 33, 61, 0.12);
}

.admin-divider {
  border: 0;
  border-top: 1px dashed #b7cae6;
  margin: 1.3rem 0;
}

.admin-success {
  margin: 0.6rem 0 0;
  color: #1f5d2f;
  font-weight: 600;
}

.site-footer {
  padding: 0.8rem 5vw 1.6rem;
  text-align: center;
  font-size: 0.88rem;
  color: #27456f;
}

.section-animate {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.section-animate.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .site-header {
    flex-wrap: wrap;
    justify-content: center;
  }

  .main-nav {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .clean-hero {
    grid-template-columns: 1fr;
  }

  .hero-media {
    order: -1;
    margin-bottom: 0.6rem;
  }

  .contact-info-grid,
  .cards-4 {
    grid-template-columns: 1fr 1fr;
  }

  .brand-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .product-tile {
    width: 100%;
  }

  .product-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .cards-4 {
    grid-template-columns: 1fr;
  }

  .brand-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}