:root {
  --color-bg: #e8eef0;
  --color-bg-deep: #d5e0e3;
  --color-surface: #f7fafb;
  --color-ink: #1a2a32;
  --color-muted: #4d5f68;
  --color-primary: #0a5c5c;
  --color-primary-dark: #074545;
  --color-accent: #b8541a;
  --color-accent-soft: #f3e2d4;
  --color-border: #c5d2d6;
  --color-success: #1f6b4a;
  --color-error: #9b2c2c;
  --font-display: "Prompt", sans-serif;
  --font-body: "Sarabun", sans-serif;
  --space-xs: 0.35rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5.5rem;
  --radius: 2px;
  --shadow-soft: 0 12px 40px rgba(26, 42, 50, 0.08);
  --header-h: 4.25rem;
  --max: 70rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(10, 92, 92, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(184, 84, 26, 0.08), transparent 45%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-deep) 100%);
  min-height: 100vh;
}

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

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.25;
  font-weight: 600;
  margin: 0 0 var(--space-md);
  color: var(--color-ink);
}

h1 { font-size: clamp(1.85rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.45rem, 3vw, 2rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 var(--space-md); }

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

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

.main {
  min-height: 60vh;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 250, 251, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: var(--space-md);
}

.site-header__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
}

.site-header__toggle span {
  display: block;
  width: 1.4rem;
  height: 2px;
  background: var(--color-ink);
}

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

.site-nav a {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  padding: 0.2rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

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

@media (max-width: 860px) {
  .site-header__toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    display: none;
  }
  .site-nav.is-open { display: block; }
  .site-nav__list {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.7rem 1.35rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.btn--accent {
  background: var(--color-accent);
  color: #fff;
}

.btn--accent:hover {
  background: #9a4515;
  color: #fff;
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-ink);
}

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

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Home hero — full-bleed composition */
.home-hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  color: #fff;
  overflow: hidden;
}

.home-hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(7, 40, 45, 0.88) 0%, rgba(7, 40, 45, 0.55) 48%, rgba(26, 42, 50, 0.35) 100%),
    url("https://images.unsplash.com/photo-1578574577315-52ac167a0c9d?w=1600&h=1000&fit=crop") center / cover no-repeat;
  transform: scale(1.04);
  animation: hero-drift 18s var(--ease) infinite alternate;
}

@keyframes hero-drift {
  from { transform: scale(1.04) translate(0, 0); }
  to { transform: scale(1.08) translate(-1.5%, -1%); }
}

.home-hero__content {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) 0 calc(var(--space-xl) + 1rem);
  max-width: 36rem;
}

.home-hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-sm);
  line-height: 1.05;
  animation: rise-in 0.8s var(--ease) both;
}

.home-hero__headline {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 500;
  margin: 0 0 var(--space-md);
  color: #e8f2f2;
  animation: rise-in 0.8s 0.12s var(--ease) both;
}

.home-hero__text {
  margin: 0 0 var(--space-lg);
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
  animation: rise-in 0.8s 0.22s var(--ease) both;
}

.home-hero .btn-row {
  animation: rise-in 0.8s 0.32s var(--ease) both;
}

@keyframes rise-in {
  from { opacity: 0; transform: translateY(1.25rem); }
  to { opacity: 1; transform: translateY(0); }
}

/* Sections */
.section {
  padding: var(--space-xl) 0;
}

.section--tight {
  padding: var(--space-lg) 0;
}

.section__head {
  max-width: 38rem;
  margin-bottom: var(--space-lg);
}

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

.section--surface {
  background: rgba(247, 250, 251, 0.72);
  border-block: 1px solid var(--color-border);
}

/* Offer preview — not cards as decoration; list with images */
.offer-list {
  display: grid;
  gap: var(--space-lg);
}

.offer-item {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: var(--space-lg);
  align-items: center;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.offer-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.offer-item__image {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
  filter: saturate(0.92);
}

.offer-item__meta {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

@media (max-width: 720px) {
  .offer-item {
    grid-template-columns: 1fr;
  }
}

/* Service grid for listing */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: var(--space-lg);
}

.service-tile {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.service-tile__image {
  aspect-ratio: 3 / 2;
  object-fit: cover;
  width: 100%;
}

.service-tile h3 {
  margin-bottom: var(--space-xs);
}

.service-tile p {
  color: var(--color-muted);
  flex: 1;
}

/* Evidence / quotes */
.quote-stack {
  display: grid;
  gap: var(--space-lg);
}

.quote {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-md);
}

.quote p {
  font-size: 1.05rem;
}

.quote__meta {
  font-size: 0.92rem;
  color: var(--color-muted);
  margin: 0;
}

/* Process strip */
.process-steps {
  counter-reset: step;
  display: grid;
  gap: var(--space-md);
}

.process-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  align-items: start;
  padding: var(--space-md) 0;
  border-bottom: 1px dashed var(--color-border);
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-primary);
  line-height: 1;
}

/* Page chrome */
.page-header {
  padding: var(--space-xl) 0 var(--space-lg);
}

.page-header__lead {
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: 40rem;
  margin: 0;
}

.page-hero--image {
  position: relative;
  min-height: 18rem;
  display: flex;
  align-items: flex-end;
  color: #fff;
}

.page-hero__media {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.page-hero__overlay {
  position: relative;
  width: 100%;
  padding: var(--space-xl) 0;
  background: linear-gradient(transparent, rgba(7, 40, 45, 0.88));
}

.page-hero__eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-accent-soft);
}

.page-hero__title {
  color: #fff;
  margin-bottom: var(--space-sm);
}

.page-hero__lead {
  color: rgba(255, 255, 255, 0.9);
  max-width: 36rem;
  margin: 0;
}

.prose-wrap {
  padding-bottom: var(--space-xl);
}

.prose-wrap .prose,
.prose {
  max-width: 42rem;
}

.prose h2 { margin-top: var(--space-lg); }
.prose ul, .prose ol { padding-left: 1.25rem; margin-bottom: var(--space-md); }
.prose li { margin-bottom: 0.35rem; }

/* Detail layout */
.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.detail-aside {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  position: sticky;
  top: calc(var(--header-h) + 1rem);
}

.detail-aside dt {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted);
  margin-top: var(--space-sm);
}

.detail-aside dd {
  margin: 0.2rem 0 0;
}

@media (max-width: 800px) {
  .detail-layout { grid-template-columns: 1fr; }
  .detail-aside { position: static; }
}

/* Pricing */
.rate-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  margin-bottom: var(--space-lg);
}

.rate-table th,
.rate-table td {
  text-align: left;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.rate-table th {
  font-family: var(--font-display);
  background: rgba(10, 92, 92, 0.08);
  font-weight: 600;
}

.rate-note {
  color: var(--color-muted);
  max-width: 40rem;
}

/* Blog */
.post-list {
  display: grid;
  gap: var(--space-lg);
}

.post-row {
  display: grid;
  grid-template-columns: 12rem 1fr;
  gap: var(--space-md);
  align-items: start;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.post-row img {
  aspect-ratio: 1;
  object-fit: cover;
  width: 100%;
}

.post-row__date {
  font-size: 0.88rem;
  color: var(--color-muted);
  margin: 0 0 var(--space-xs);
}

@media (max-width: 600px) {
  .post-row { grid-template-columns: 1fr; }
}

.post-cover {
  width: 100%;
  max-height: 26rem;
  object-fit: cover;
  margin-bottom: var(--space-lg);
}

/* Forms */
.form {
  max-width: 34rem;
  display: grid;
  gap: var(--space-md);
}

.form__field {
  display: grid;
  gap: 0.35rem;
}

.form__field label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
}

.form__field input,
.form__field select,
.form__field textarea {
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
}

.form__field textarea { min-height: 8rem; resize: vertical; }

.form__field input:focus,
.form__field select:focus,
.form__field textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.form__error {
  color: var(--color-error);
  font-size: 0.88rem;
  margin: 0;
  display: none;
}

.form__field.is-invalid .form__error { display: block; }
.form__field.is-invalid input,
.form__field.is-invalid select,
.form__field.is-invalid textarea {
  border-color: var(--color-error);
}

.form__status {
  padding: var(--space-sm) var(--space-md);
  border-left: 3px solid var(--color-primary);
  background: var(--color-surface);
  display: none;
}

.form__status.is-visible { display: block; }
.form__status.is-success { border-color: var(--color-success); }
.form__status.is-error { border-color: var(--color-error); }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: var(--space-xl);
}

.contact-details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  height: fit-content;
}

@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* FAQ */
.faq-list {
  max-width: 42rem;
  display: grid;
  gap: var(--space-md);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-md);
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-xs);
}

/* Story blocks */
.story {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.story__label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 var(--space-xs);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--color-ink);
  color: #eef3f4;
  padding: var(--space-md);
  box-shadow: var(--shadow-soft);
  animation: rise-in 0.45s var(--ease) both;
}

.cookie-banner[hidden] { display: none !important; }

.cookie-banner__inner {
  width: min(100%, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  justify-content: space-between;
}

.cookie-banner__text {
  margin: 0;
  flex: 1 1 18rem;
  font-size: 0.95rem;
}

.cookie-banner a { color: #f3e2d4; }

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
}

.cookie-banner .btn--ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

.cookie-banner .btn--primary {
  background: var(--color-accent);
}

/* Footer */
.site-footer {
  background: #132229;
  color: #d5e0e3;
  padding: var(--space-xl) 0 var(--space-md);
  margin-top: var(--space-xl);
}

.site-footer a { color: #f3e2d4; }

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 var(--space-xs);
}

.site-footer__tag {
  color: rgba(213, 224, 227, 0.8);
  margin: 0;
}

.site-footer__nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--space-md);
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .site-footer__grid { grid-template-columns: 1fr; }
}

/* 404 */
.error-page {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
}

.error-page h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  color: var(--color-primary);
}

/* Legal tables */
.cookie-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: var(--space-md) 0;
  overflow-x: auto;
  display: block;
}

.cookie-table th,
.cookie-table td {
  border: 1px solid var(--color-border);
  padding: 0.65rem 0.75rem;
  text-align: left;
  background: var(--color-surface);
}

.cookie-table th {
  background: rgba(10, 92, 92, 0.1);
  font-family: var(--font-display);
}

/* Utility */
.muted { color: var(--color-muted); }
.mb-0 { margin-bottom: 0; }

.team-row {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  align-items: start;
}

.team-row img {
  aspect-ratio: 1;
  object-fit: cover;
  width: 100%;
}

@media (max-width: 500px) {
  .team-row { grid-template-columns: 1fr; max-width: 16rem; }
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg);
}

.checklist li {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.6rem;
  border-bottom: 1px solid var(--color-border);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.65rem;
  height: 0.65rem;
  background: var(--color-primary);
  border-radius: 1px;
}

.cta-band {
  background: linear-gradient(120deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: var(--space-xl) 0;
  margin-top: var(--space-lg);
}

.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255, 255, 255, 0.88); max-width: 34rem; }
.cta-band .btn--accent { background: var(--color-accent); }