:root {
  --ice-night: #071018;
  --ice-deep: #0c1724;
  --quartz: #eef3f8;
  --silver: #f7fbff;
  --emerald: #3dffa8;
  --violet: #c4a2ff;
  --cyan: #5ce1ff;
  --muted: rgba(238, 243, 248, 0.72);
  --line: rgba(255, 255, 255, 0.14);
  --crystal: rgba(255, 255, 255, 0.07);
  --shadow: 0 24px 60px rgba(3, 8, 16, 0.45);
  --radius: 22px;
  --font: "IBM Plex Sans Thai", "Outfit", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--quartz);
  background:
    radial-gradient(1200px 700px at 12% -10%, rgba(92, 225, 255, 0.18), transparent 55%),
    radial-gradient(900px 600px at 90% 8%, rgba(196, 162, 255, 0.22), transparent 50%),
    radial-gradient(800px 500px at 70% 90%, rgba(61, 255, 168, 0.12), transparent 55%),
    linear-gradient(180deg, #08111c 0%, #0b1522 40%, #071018 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(92, 225, 255, 0.05) 48%, transparent 56%),
    linear-gradient(245deg, transparent 30%, rgba(196, 162, 255, 0.05) 46%, transparent 62%);
  animation: aurora-drift 18s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes aurora-drift {
  from { opacity: 0.55; transform: translate3d(0, 0, 0); }
  to { opacity: 1; transform: translate3d(-2%, 1.5%, 0); }
}

main,
.site-header,
.site-footer,
.cookie-banner {
  position: relative;
  z-index: 1;
}

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

a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

a:hover {
  color: var(--emerald);
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(18px);
  background: rgba(7, 16, 24, 0.72);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.4rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--silver);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 1.15rem;
  height: 1.15rem;
  clip-path: polygon(50% 0, 100% 28%, 100% 72%, 50% 100%, 0 72%, 0 28%);
  background: linear-gradient(160deg, var(--cyan), var(--violet) 55%, var(--emerald));
  box-shadow: 0 0 18px rgba(92, 225, 255, 0.45);
}

.nav-toggle {
  display: none;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--crystal);
  padding: 0.55rem;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--silver);
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--quartz);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--emerald);
}

.crystal {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.035));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-split {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 0;
  margin: 2rem auto 3.5rem;
  overflow: hidden;
}

.hero-copy {
  padding: 2.4rem 2.2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.kicker {
  writing-mode: horizontal-tb;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 1rem;
}

.hero-copy h1 {
  font-family: "Outfit", "IBM Plex Sans Thai", sans-serif;
  font-size: clamp(1.8rem, 3.4vw, 2.85rem);
  line-height: 1.25;
  font-weight: 600;
  margin: 0 0 1rem;
  color: var(--silver);
}

.pull {
  margin: 0 0 1.4rem;
  padding-left: 1rem;
  border-left: 2px solid var(--violet);
  color: var(--muted);
}

.hero-photo {
  min-height: 420px;
  position: relative;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 420px;
  filter: saturate(0.85) contrast(1.05);
}

.hero-photo figcaption {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  margin: 0;
  padding: 0.45rem 0.75rem;
  background: rgba(7, 16, 24, 0.62);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.82rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  color: #061019;
  background: linear-gradient(120deg, var(--cyan), var(--emerald));
  position: relative;
  isolation: isolate;
  text-decoration: none;
}

.btn:hover {
  color: #061019;
}

.btn-pulse::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  z-index: -1;
  background: linear-gradient(120deg, var(--violet), var(--cyan), var(--emerald));
  opacity: 0;
}

.btn-pulse:hover::after,
.btn-pulse:focus-visible::after {
  animation: crystal-pulse 0.9s ease;
}

@keyframes crystal-pulse {
  0% { opacity: 0.9; filter: blur(0); transform: scale(1); }
  100% { opacity: 0; filter: blur(8px); transform: scale(1.18); }
}

.btn-ghost {
  background: transparent;
  color: var(--silver);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  color: var(--emerald);
}

.section {
  margin-bottom: 4rem;
}

.section h2 {
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.35;
  margin: 0 0 0.75rem;
}

.lede {
  max-width: 46rem;
  color: var(--muted);
  margin: 0 0 1.6rem;
}

.primary-offer {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  padding: 1.4rem;
}

.primary-offer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
  border-radius: 16px;
}

.offer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card-body {
  padding: 1.1rem 1.15rem 1.3rem;
}

.card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.12rem;
  color: var(--silver);
}

.card p {
  margin: 0;
  color: var(--muted);
}

.evidence {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.quote {
  padding: 1.3rem 1.4rem;
}

.quote p {
  margin: 0 0 0.8rem;
}

.quote cite {
  font-style: normal;
  color: var(--cyan);
  font-size: 0.92rem;
}

.team-grid,
.cases-grid,
.blog-grid,
.price-grid {
  display: grid;
  gap: 1rem;
}

.team-grid {
  grid-template-columns: repeat(3, 1fr);
}

.cases-grid,
.blog-grid,
.price-grid {
  grid-template-columns: repeat(2, 1fr);
}

.portrait img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 16px 16px 0 0;
}

.article-hero img,
.page-hero img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
}

.prose {
  max-width: 46rem;
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose h2 {
  margin-top: 2rem;
}

.legal .prose {
  max-width: 50rem;
}

.form {
  display: grid;
  gap: 0.9rem;
  max-width: 36rem;
}

label span {
  display: block;
  margin-bottom: 0.3rem;
}

input,
select,
textarea {
  width: 100%;
  font: inherit;
  color: var(--silver);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
}

textarea {
  min-height: 9rem;
  resize: vertical;
}

.field-error,
.form-error {
  color: #ffb4c8;
  font-size: 0.9rem;
  margin: 0.25rem 0 0;
}

.form-success {
  color: var(--emerald);
}

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--line);
  background: rgba(7, 16, 24, 0.55);
  padding: 2.2rem 0 1.2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.9fr;
  gap: 1.5rem;
}

.footer-brand,
.footer-label {
  margin: 0 0 0.4rem;
  color: var(--silver);
  font-weight: 600;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-copy {
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.cookie-banner {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 40;
}

.cookie-inner {
  width: min(720px, 100%);
  margin-left: auto;
  padding: 1.1rem 1.2rem;
  background: linear-gradient(180deg, rgba(18, 32, 48, 0.94), rgba(8, 16, 26, 0.94));
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.8rem;
}

.list-plain {
  padding-left: 1.1rem;
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

.tag {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--violet);
}

.not-found {
  text-align: center;
  padding: 5rem 1rem 6rem;
}

@media (max-width: 900px) {
  .hero-split,
  .primary-offer,
  .related,
  .evidence,
  .team-grid,
  .cases-grid,
  .blog-grid,
  .price-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 4.4rem;
    left: 0;
    right: 0;
    background: rgba(7, 16, 24, 0.96);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.2rem 1.3rem;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
  }
}