:root {
  --bg: #f4f1ec;
  --bg-soft: #ebe6de;
  --surface: #faf8f5;
  --ink: #2a2d28;
  --ink-muted: #5c6358;
  --line: #d4cdc0;
  --accent: #3d4a3e;
  --accent-hover: #2f3930;
  --accent-soft: #e2e6df;
  --warm: #8b7355;
  --success: #3a6b4a;
  --error: #8b3a3a;
  --radius: 4px;
  --shadow: 0 1px 2px rgba(42, 45, 40, 0.06);
  --font-display: "Noto Serif Thai", "Noto Serif", Georgia, serif;
  --font-body: "Sarabun", "Noto Sans Thai", sans-serif;
  --space: clamp(1rem, 2vw, 1.5rem);
  --max: 1120px;
}

*,
*::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(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(196, 181, 154, 0.25), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(61, 74, 62, 0.08), transparent 50%),
    var(--bg);
  min-height: 100vh;
}

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

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); }

p { margin: 0 0 1em; color: var(--ink-muted); }

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 241, 236, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand:hover { color: var(--accent); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  font-family: var(--font-body);
  color: var(--ink);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-list a {
  text-decoration: none;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

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

.nav-cta {
  background: var(--accent);
  color: #faf8f5 !important;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
  transition: background 0.25s ease, transform 0.25s ease;
}

.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 0.75rem 1.25rem 1.25rem;
    display: none;
  }
  .nav.is-open { display: block; }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.btn-primary {
  background: var(--accent);
  color: #faf8f5;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #faf8f5;
  transform: translateY(-1px);
}

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

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

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Hero variants */
.hero {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2rem, 4vw, 3rem);
}

.hero-split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: end;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.4em;
  color: var(--ink);
}

.hero-lead {
  font-size: 1.15rem;
  max-width: 34ch;
  margin-bottom: 0;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 320px;
  animation: rise 0.8s ease both;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
}

.hero-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem 1.1rem;
  background: linear-gradient(transparent, rgba(42, 45, 40, 0.72));
  color: #faf8f5;
  font-size: 0.9rem;
}

@media (max-width: 800px) {
  .hero-split { grid-template-columns: 1fr; }
  .hero-visual { min-height: 240px; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.reveal {
  animation: rise 0.7s ease both;
}

.reveal-delay { animation-delay: 0.15s; }
.reveal-delay-2 { animation-delay: 0.3s; }

/* Sections */
.section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.section-alt {
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2rem;
}

.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--warm);
  margin-bottom: 0.5rem;
  font-family: var(--font-body);
}

/* Offer list */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.offer-item {
  padding: 0;
  animation: rise 0.6s ease both;
}

.offer-item img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.offer-item h3 {
  margin-bottom: 0.4em;
}

.offer-item h3 a {
  text-decoration: none;
  color: var(--ink);
}

.offer-item h3 a:hover { color: var(--accent); }

.meta {
  font-size: 0.9rem;
  color: var(--warm);
  margin-bottom: 0.5rem;
}

/* Quote / evidence */
.quote-block {
  max-width: 38rem;
  border-left: 2px solid var(--warm);
  padding-left: 1.25rem;
  margin: 2rem 0;
}

.quote-block p {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
  line-height: 1.45;
}

.quote-block cite {
  display: block;
  margin-top: 0.75rem;
  font-style: normal;
  font-size: 0.95rem;
  color: var(--ink-muted);
}

/* Reviews */
.review-list {
  display: grid;
  gap: 1.75rem;
}

.review-item {
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--line);
}

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

.review-item .who {
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.15rem;
}

.review-item .svc {
  font-size: 0.9rem;
  color: var(--warm);
  margin-bottom: 0.75rem;
}

/* Blog */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.post-card img {
  aspect-ratio: 16/9;
  object-fit: cover;
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 0.85rem;
}

.post-card h3 a {
  text-decoration: none;
  color: var(--ink);
}

.post-card h3 a:hover { color: var(--accent); }

.post-date {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.prose {
  max-width: 42rem;
}

.prose h2 { margin-top: 2rem; }
.prose ul, .prose ol { color: var(--ink-muted); padding-left: 1.25rem; }
.prose li { margin-bottom: 0.4rem; }

.cover {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  margin: 1.5rem 0 2rem;
}

/* Pricing */
.price-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

.price-table th,
.price-table td {
  text-align: left;
  padding: 0.9rem 0.75rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.price-table th {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

.price-note {
  background: var(--accent-soft);
  padding: 1.25rem 1.35rem;
  border-radius: var(--radius);
  margin-top: 1.5rem;
}

/* Forms */
.form {
  max-width: 34rem;
  display: grid;
  gap: 1rem;
}

.form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.95rem;
  color: var(--ink);
}

.form input,
.form select,
.form textarea {
  font: inherit;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.form .error-msg {
  color: var(--error);
  font-size: 0.85rem;
  display: none;
}

.form .field-invalid input,
.form .field-invalid select,
.form .field-invalid textarea {
  border-color: var(--error);
}

.form .field-invalid .error-msg {
  display: block;
}

.form-status {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  display: none;
}

.form-status.is-success {
  display: block;
  background: #e5efe8;
  color: var(--success);
}

.form-status.is-error {
  display: block;
  background: #f3e5e5;
  color: var(--error);
}

.contact-aside {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-aside dt {
  font-weight: 600;
  color: var(--ink);
}

.contact-aside dd {
  margin: 0.2rem 0 0;
  color: var(--ink-muted);
}

.layout-two {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
}

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

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding: 2.5rem 0 2rem;
  border-top: 1px solid var(--line);
  background: #e8e3da;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}

.footer-grid h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

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

.footer-grid li { margin-bottom: 0.4rem; }

.footer-grid a {
  text-decoration: none;
  color: var(--ink-muted);
}

.footer-grid a:hover { color: var(--ink); }

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--ink-muted);
}

@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  max-width: 520px;
  margin-inline: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 8px 28px rgba(42, 45, 40, 0.12);
  padding: 1.15rem 1.25rem;
  border-radius: var(--radius);
  animation: fade-in 0.35s ease;
}

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

.cookie-banner p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Page hero (inner) */
.page-hero {
  padding: clamp(2rem, 4vw, 3rem) 0 1rem;
}

.page-hero p {
  max-width: 40rem;
}

/* Curriculum timeline */
.timeline {
  display: grid;
  gap: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1.25rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item .day {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--warm);
}

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

.checklist li {
  padding: 0.55rem 0 0.55rem 1.5rem;
  position: relative;
  border-bottom: 1px solid var(--line);
  color: var(--ink-muted);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.55rem;
  height: 0.55rem;
  border: 1.5px solid var(--accent);
  border-radius: 1px;
}

/* 404 */
.page-404 {
  text-align: center;
  padding: 5rem 0;
}

.page-404 h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  margin-bottom: 0.3em;
}

/* Legal */
.legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 1.5rem 0;
}

.legal-table th,
.legal-table td {
  border: 1px solid var(--line);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.legal-table th {
  background: var(--bg-soft);
}