:root {
  --quartz: #f4f8fc;
  --quartz-deep: #dce7f2;
  --ink: #15202b;
  --ink-soft: #3a4a5c;
  --emerald: #1aa37a;
  --emerald-bright: #3dcf9a;
  --violet: #7b5cff;
  --violet-soft: #b48cff;
  --cyan: #5ee7f0;
  --cyan-deep: #2ec4d4;
  --silver: #c5d0dc;
  --white: #f8fbff;
  --error: #b4234a;
  --ok: #0f7a56;
  --radius: 1.35rem;
  --font: "IBM Plex Sans Thai", "Outfit", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(94, 231, 240, 0.35), transparent 55%),
    radial-gradient(900px 420px at 90% 0%, rgba(123, 92, 255, 0.28), transparent 50%),
    radial-gradient(700px 400px at 70% 80%, rgba(61, 207, 154, 0.18), transparent 45%),
    linear-gradient(180deg, #eef6fb 0%, var(--quartz) 40%, #e8f3f1 100%);
  min-height: 100vh;
  line-height: 1.75;
}
body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 40%, rgba(255,255,255,0.35) 50%, transparent 60%),
    repeating-linear-gradient(-32deg, rgba(255,255,255,0.07) 0 12px, transparent 12px 24px);
  mix-blend-mode: overlay;
  animation: aurora-shift 18s linear infinite;
  z-index: 0;
}
@keyframes aurora-shift {
  from { transform: translateX(-8%); }
  to { transform: translateX(8%); }
}
a { color: #2651a8; }
img { max-width: 100%; display: block; }
main, .site-head, .site-foot, .cookie { position: relative; z-index: 1; }

.site-head {
  position: sticky;
  top: 0;
  backdrop-filter: blur(16px);
  background: rgba(248, 251, 255, 0.72);
  border-bottom: 1px solid rgba(197, 208, 220, 0.7);
}
.site-head__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--ink); }
.brand__mark {
  width: 1.35rem;
  height: 1.55rem;
  clip-path: polygon(50% 0, 100% 38%, 78% 100%, 22% 100%, 0 38%);
  background: linear-gradient(160deg, var(--cyan), var(--violet) 55%, var(--emerald-bright));
  box-shadow: 0 0 16px rgba(94, 231, 240, 0.55);
}
.brand__name { font-family: Outfit, var(--font); font-weight: 700; letter-spacing: 0.02em; }
.site-nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.site-nav a { text-decoration: none; color: var(--ink-soft); font-weight: 500; }
.site-nav a:hover { color: var(--violet); }
.nav-toggle {
  display: none;
  border: 1px solid var(--silver);
  background: rgba(255,255,255,0.7);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font: inherit;
}

.kicker {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--emerald);
  font-weight: 600;
  margin: 0 0 0.4rem;
}
h1, h2 { line-height: 1.25; font-weight: 700; }
h1 { font-size: clamp(1.8rem, 3.4vw, 3rem); margin: 0 0 0.6rem; }
h2 { font-size: 1.45rem; }

.rail-hero {
  max-width: 1120px;
  margin: 1.5rem auto 0;
  padding: 0 1.25rem;
  display: grid;
  grid-template-columns: minmax(12rem, 18rem) 1fr;
  gap: 1.25rem;
  align-items: stretch;
}
.rail-hero__meta {
  background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(94, 231, 240, 0.12));
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 18px 40px rgba(21, 32, 43, 0.08);
}
.rail-hero__pin { margin: 0.35rem 0; color: var(--ink-soft); font-size: 0.95rem; }
.rail-hero__frame {
  margin: 0;
  position: relative;
  border-radius: calc(var(--radius) + 0.4rem);
  overflow: hidden;
  min-height: 28rem;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.7),
    0 24px 50px rgba(123, 92, 255, 0.16);
}
.rail-hero__frame img {
  width: 100%;
  height: 28rem;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
}
.rail-hero__frame figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 1.4rem 1.5rem 1.6rem;
  background: linear-gradient(180deg, transparent, rgba(21, 32, 43, 0.78));
  color: var(--white);
}
.rail-hero__frame h1 { color: var(--white); text-shadow: 0 8px 24px rgba(0,0,0,0.35); }

.split-block, .offer-row, .evidence, .page-intro, .detail, .legal, .lost, .contact-grid, .cta-band, .service-index, .blog-index, .gallery-grid {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
}
.split-block {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
}
.lede { font-size: 1.08rem; color: var(--ink-soft); }

.crystal-card {
  margin: 0;
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(255,255,255,0.78), rgba(180, 140, 255, 0.12) 40%, rgba(94, 231, 240, 0.16));
  border: 1px solid rgba(255,255,255,0.85);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9), 0 16px 36px rgba(21, 32, 43, 0.08);
  backdrop-filter: blur(10px);
}
.crystal-card footer, .crystal-card figcaption { color: var(--ink-soft); font-size: 0.92rem; }

.offer-list, .service-index, .blog-index, .gallery-grid { list-style: none; padding-left: 0; }
.offer-list { display: grid; gap: 0.9rem; }
.offer-list a, .service-index a, .blog-index a {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  background: rgba(255,255,255,0.55);
  border: 1px solid rgba(197, 208, 220, 0.8);
  border-radius: 1.1rem;
  overflow: hidden;
}
.offer-list img, .service-index img, .blog-index img { width: 100%; height: 100%; object-fit: cover; min-height: 6.5rem; }
.offer-list span, .service-index span { color: var(--violet); font-size: 0.82rem; font-weight: 600; }
.offer-list em { display: block; font-style: normal; color: var(--ink-soft); margin-top: 0.25rem; }
.offer-list strong, .service-index h2, .blog-index h2 { display: block; margin: 0.15rem 0; }
.offer-list div, .service-index div, .blog-index div { padding: 0.85rem 0.85rem 0.85rem 0; }

.service-index, .blog-index { display: grid; gap: 1.1rem; }
.service-index a, .blog-index a { grid-template-columns: 14rem 1fr; }
.price-line { color: var(--emerald); font-weight: 600; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.gallery-card {
  background: rgba(255,255,255,0.6);
  border-radius: 1.1rem;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.9);
}
.gallery-card img { height: 11rem; width: 100%; object-fit: cover; }
.gallery-card div { padding: 0.9rem 1rem 1.1rem; }
.year { margin: 0; font-size: 0.82rem; color: var(--violet); }

.evidence__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.center-link { text-align: center; }

.detail__hero {
  width: 100%;
  height: 18rem;
  object-fit: cover;
  border-radius: var(--radius);
  margin: 1rem 0 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  color: var(--white);
  background: linear-gradient(120deg, var(--violet), var(--cyan-deep) 55%, var(--emerald));
  background-size: 180% 180%;
  position: relative;
  overflow: hidden;
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--silver);
}
.btn--pulse::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.7), transparent);
  transform: translateX(-120%);
}
.btn--pulse:hover::after,
.btn--pulse:focus-visible::after {
  animation: crystal-pulse 0.85s ease;
}
@keyframes crystal-pulse {
  from { transform: translateX(-120%); }
  to { transform: translateX(120%); }
}

.form .field { margin-bottom: 0.9rem; }
.form label { display: block; font-weight: 600; margin-bottom: 0.25rem; }
.form input, .form select, .form textarea {
  width: 100%;
  font: inherit;
  padding: 0.55rem 0.7rem;
  border-radius: 0.7rem;
  border: 1px solid var(--silver);
  background: rgba(255,255,255,0.88);
}
.field-error, .form-error { color: var(--error); margin: 0.25rem 0 0; font-size: 0.9rem; }
.form-success { color: var(--ok); font-weight: 600; }
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 1.5rem; }
.team-mini { list-style: none; padding: 0; }
.team-mini li { display: flex; gap: 0.75rem; align-items: center; margin: 0.7rem 0; }
.team-mini img { width: 3.4rem; height: 3.4rem; object-fit: cover; border-radius: 999px; }
.team-mini span { display: block; color: var(--ink-soft); font-size: 0.9rem; }

.legal h2 { margin-top: 1.6rem; }
.lost { text-align: center; padding-top: 5rem; padding-bottom: 5rem; }
.cta-band { text-align: center; }
.text-link { margin-left: 0.8rem; }

.site-foot {
  margin-top: 2rem;
  background: rgba(21, 32, 43, 0.92);
  color: #dce7f2;
  padding: 2.4rem 1.25rem;
}
.site-foot a { color: var(--cyan); }
.site-foot__grid {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr 0.8fr;
  gap: 1.4rem;
}
.foot-label { font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--violet-soft); }

.cookie {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  max-width: 34rem;
  margin-left: auto;
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(248,251,255,0.95), rgba(180,140,255,0.18));
  border: 1px solid rgba(255,255,255,0.9);
  box-shadow: 0 18px 40px rgba(21, 32, 43, 0.18);
  z-index: 20;
}
.cookie__actions { display: flex; gap: 0.5rem; margin-top: 0.6rem; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    right: 1rem;
    left: 1rem;
    flex-direction: column;
    padding: 0.8rem 1rem 1rem;
    background: rgba(248,251,255,0.96);
    border: 1px solid var(--silver);
    border-radius: 1rem;
  }
  .site-nav.is-open { display: flex; }
  .rail-hero, .split-block, .contact-grid, .evidence__grid, .gallery-grid, .site-foot__grid, .service-index a, .blog-index a {
    grid-template-columns: 1fr;
  }
  .rail-hero__frame, .rail-hero__frame img { min-height: 18rem; height: 18rem; }
}