/* Cognitivenetio — field-report visual system */
:root {
  --color-bg: #e4ebe6;
  --color-bg-deep: #d3ddd6;
  --color-surface: #f6f9f7;
  --color-ink: #14201a;
  --color-muted: #4d5f55;
  --color-primary: #1e3a5f;
  --color-primary-hover: #152a45;
  --color-accent: #3d6b4f;
  --color-line: #b8c6bc;
  --color-danger: #8b3a2f;
  --color-success: #2f5d45;
  --font-display: "Kanit", sans-serif;
  --font-body: "Sarabun", sans-serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --radius: 2px;
  --shadow-soft: 0 12px 40px rgba(20, 32, 26, 0.08);
  --max: 70rem;
  --header-h: 4.25rem;
  --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(61, 107, 79, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(30, 58, 95, 0.1), transparent 50%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-deep) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

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

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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-3);
}

p {
  margin: 0 0 var(--space-3);
}

ul, ol {
  margin: 0 0 var(--space-3);
  padding-left: 1.25rem;
}

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

.main {
  min-height: 60vh;
}

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

.section {
  padding: var(--space-6) 0;
}

.section--tight {
  padding: var(--space-5) 0;
}

.section__eyebrow {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.section__title {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  max-width: 20ch;
}

.section__lead {
  max-width: 42rem;
  color: var(--color-muted);
  font-size: 1.1rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(246, 249, 247, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.site-header__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--color-line);
  padding: 0.55rem 0.65rem;
  cursor: pointer;
}

.site-header__toggle-bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--color-ink);
}

.site-nav__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1rem;
  margin: 0;
  padding: 0;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-ink);
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--color-primary);
}

.site-nav__cta {
  background: var(--color-primary);
  color: #f6f9f7 !important;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
}

.site-nav__cta:hover {
  background: var(--color-primary-hover);
}

@media (max-width: 900px) {
  .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-line);
    padding: var(--space-3);
    display: none;
  }

  .site-nav.is-open {
    display: block;
    animation: slideDown 0.35s var(--ease);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
  }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-0.5rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(1rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeLine {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

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

.btn--primary {
  background: var(--color-primary);
  color: #f6f9f7;
}

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

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

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

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Hero — full-bleed */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  color: #f3f7f4;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroZoom 18s var(--ease) infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.06); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(20, 32, 26, 0.35) 0%, rgba(20, 32, 26, 0.78) 70%, rgba(20, 32, 26, 0.9) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: var(--space-7) 0 var(--space-6);
  animation: riseIn 0.8s var(--ease) both;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
  line-height: 1.05;
}

.hero__title {
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  font-weight: 500;
  max-width: 28ch;
  margin-bottom: var(--space-3);
}

.hero__text {
  max-width: 36rem;
  color: rgba(243, 247, 244, 0.9);
  margin-bottom: var(--space-4);
}

.hero__rule {
  width: 5rem;
  height: 3px;
  background: #8fbc9a;
  margin-bottom: var(--space-4);
  transform-origin: left;
  animation: fadeLine 0.9s 0.25s var(--ease) both;
}

/* Page hero (inner pages) */
.page-hero {
  padding: var(--space-6) 0 var(--space-4);
  border-bottom: 1px solid var(--color-line);
  background:
    linear-gradient(120deg, rgba(30, 58, 95, 0.08), transparent 55%),
    var(--color-surface);
}

.page-hero__title {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  max-width: 18ch;
  animation: riseIn 0.6s var(--ease) both;
}

.page-hero__lead {
  max-width: 40rem;
  color: var(--color-muted);
  animation: riseIn 0.7s 0.1s var(--ease) both;
}

.page-hero--media {
  position: relative;
  min-height: 18rem;
  display: grid;
  align-items: end;
  color: #f6f9f7;
  overflow: hidden;
}

.page-hero--media .page-hero__media {
  position: absolute;
  inset: 0;
}

.page-hero--media .page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero--media .page-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,32,26,0.2), rgba(20,32,26,0.85));
}

.page-hero--media .wrap {
  position: relative;
  z-index: 2;
  padding: var(--space-6) 0 var(--space-5);
}

.page-hero--media .page-hero__lead {
  color: rgba(246, 249, 247, 0.88);
}

/* Offer / service listings — not cards by default; interaction containers OK */
.offer-list {
  display: grid;
  gap: var(--space-4);
}

.offer-item {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: var(--space-4);
  align-items: center;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-line);
  animation: riseIn 0.6s var(--ease) both;
}

.offer-item:nth-child(2) { animation-delay: 0.08s; }
.offer-item:nth-child(3) { animation-delay: 0.16s; }
.offer-item:nth-child(4) { animation-delay: 0.24s; }

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

.offer-item__title {
  font-size: 1.35rem;
  margin-bottom: var(--space-2);
}

.offer-item__title a {
  color: inherit;
  text-decoration: none;
}

.offer-item__title a:hover {
  color: var(--color-primary);
}

.offer-item__meta {
  color: var(--color-muted);
  font-size: 0.95rem;
}

@media (max-width: 760px) {
  .offer-item {
    grid-template-columns: 1fr;
  }
}

/* Split sections */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}

.split--reverse .split__media {
  order: 2;
}

.split__media img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

@media (max-width: 800px) {
  .split,
  .split--reverse .split__media {
    grid-template-columns: 1fr;
    order: initial;
  }
}

/* Process steps */
.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-4);
}

.steps__item {
  position: relative;
  padding-left: 4rem;
  counter-increment: step;
}

.steps__item::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: 600;
}

.steps__item h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-2);
}

/* Quotes */
.quote-list {
  display: grid;
  gap: var(--space-4);
}

.quote {
  border-left: 3px solid var(--color-accent);
  padding: var(--space-3) var(--space-4);
  background: rgba(246, 249, 247, 0.7);
}

.quote__text {
  font-size: 1.05rem;
}

.quote__meta {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin: 0;
}

.quote--long {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left-width: 3px;
  padding: var(--space-4);
}

/* Blog */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: var(--space-4);
}

.post-teaser {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.post-teaser img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.post-teaser__title {
  font-size: 1.15rem;
  margin: 0;
}

.post-teaser__title a {
  color: inherit;
  text-decoration: none;
}

.post-teaser__title a:hover {
  color: var(--color-primary);
}

.post-teaser__date {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.prose {
  max-width: 42rem;
}

.prose h2 {
  margin-top: var(--space-5);
}

.article-hero img {
  width: 100%;
  max-height: 28rem;
  object-fit: cover;
  margin-bottom: var(--space-4);
}

/* Pricing */
.rate-block {
  display: grid;
  gap: var(--space-4);
}

.rate-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-line);
}

.rate-row__price {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-primary);
}

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

.factor-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-3);
}

.factor {
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-line);
}

.factor h3 {
  font-size: 1.05rem;
}

/* Forms */
.form {
  display: grid;
  gap: var(--space-3);
  max-width: 36rem;
  background: var(--color-surface);
  padding: var(--space-4);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-soft);
}

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

.form__field label {
  font-weight: 600;
  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-line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
  width: 100%;
}

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

.form__field input:focus,
.form__field select:focus,
.form__field textarea:focus {
  outline: 2px solid rgba(30, 58, 95, 0.35);
  outline-offset: 1px;
  border-color: var(--color-primary);
}

.form__error {
  color: var(--color-danger);
  font-size: 0.9rem;
  min-height: 1.2em;
}

.form__status {
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  display: none;
}

.form__status.is-success {
  display: block;
  border-color: var(--color-success);
  color: var(--color-success);
  background: rgba(47, 93, 69, 0.08);
}

.form__status.is-error {
  display: block;
  border-color: var(--color-danger);
  color: var(--color-danger);
  background: rgba(139, 58, 47, 0.08);
}

.form__field.is-invalid input,
.form__field.is-invalid select,
.form__field.is-invalid textarea {
  border-color: var(--color-danger);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: var(--space-5);
}

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

.contact-aside {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  padding: var(--space-4);
  height: fit-content;
}

.contact-aside p {
  word-break: break-word;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--color-ink);
  color: #eef3ef;
  padding: var(--space-3);
  animation: riseIn 0.45s var(--ease);
}

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

.cookie-banner__inner {
  width: min(100% - 1rem, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.cookie-banner__text {
  margin: 0;
  flex: 1 1 18rem;
  color: rgba(238, 243, 239, 0.92);
}

.cookie-banner__text a {
  color: #b8d4c2;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-2);
}

.cookie-banner .btn--ghost {
  color: #eef3ef;
  border-color: rgba(238, 243, 239, 0.35);
}

.cookie-banner .btn--primary {
  background: #8fbc9a;
  color: var(--color-ink);
}

.cookie-banner .btn--primary:hover {
  background: #a6cbb0;
  color: var(--color-ink);
}

/* Footer */
.site-footer {
  margin-top: var(--space-6);
  background: var(--color-primary);
  color: #e8eef4;
  padding: var(--space-6) 0 var(--space-4);
}

.site-footer a {
  color: #c5d4e4;
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
}

.site-footer__inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-5);
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.site-footer__tag,
.site-footer__contact p {
  color: rgba(232, 238, 244, 0.85);
}

.site-footer__heading {
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.site-footer__links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer__links li {
  margin-bottom: 0.35rem;
}

.site-footer__copy {
  width: min(100% - 2rem, var(--max));
  margin: var(--space-5) auto 0;
  padding-top: var(--space-3);
  border-top: 1px solid rgba(232, 238, 244, 0.2);
  color: rgba(232, 238, 244, 0.65);
  font-size: 0.9rem;
}

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

/* Legal */
.legal h2 {
  font-size: 1.25rem;
  margin-top: var(--space-5);
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: var(--space-3) 0 var(--space-4);
}

.legal th,
.legal td {
  border: 1px solid var(--color-line);
  padding: 0.6rem 0.75rem;
  text-align: left;
  vertical-align: top;
  background: var(--color-surface);
}

.legal th {
  background: var(--color-bg-deep);
  font-family: var(--font-display);
  font-weight: 600;
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--space-6) var(--space-3);
}

.error-page__code {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-primary);
  margin: 0;
  line-height: 1;
}

/* Misc */
.cta-band {
  background: var(--color-surface);
  border-block: 1px solid var(--color-line);
  padding: var(--space-5) 0;
}

.cta-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.stack-sm > * + * {
  margin-top: var(--space-2);
}

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

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

.checklist li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.5rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--color-accent);
}