/* Nexgenclouds — B2B sales coaching theme
   Palette: forest ink, warm stone, brass accent
   Typography: Prompt (display) + Sarabun (body) — Thai-capable
*/

:root {
  --color-ink: #1a2e28;
  --color-ink-soft: #3d524a;
  --color-muted: #5c6f66;
  --color-paper: #f3efe6;
  --color-paper-deep: #e6e0d2;
  --color-forest: #1a4a3c;
  --color-forest-mid: #2a6352;
  --color-brass: #b8860b;
  --color-brass-light: #e8c47a;
  --color-cream: #faf7f0;
  --color-border: rgba(26, 46, 40, 0.14);
  --color-error: #8b2e2e;
  --color-success: #1a4a3c;

  --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;

  --width-content: 68rem;
  --width-narrow: 42rem;
  --radius: 2px;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-soft: 0 12px 40px rgba(26, 46, 40, 0.08);
}

*,
*::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-color: var(--color-cream);
  background-image:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(232, 196, 122, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(42, 99, 82, 0.08), transparent 50%),
    linear-gradient(180deg, var(--color-paper) 0%, var(--color-cream) 40%, var(--color-paper-deep) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

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

a {
  color: var(--color-forest);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.2s var(--ease);
}

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

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

h1 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.15rem);
}

h3 {
  font-size: 1.25rem;
}

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

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

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

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

.l-wrap--narrow {
  width: min(100% - 2rem, var(--width-narrow));
}

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

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

/* Header */
.c-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(250, 247, 240, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.c-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-md);
}

.c-header__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-forest);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.c-header__brand:hover {
  color: var(--color-ink);
}

.c-header__toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.65rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-ink);
  cursor: pointer;
}

.c-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.c-nav__list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.15rem 1rem;
}

.c-nav__link {
  font-size: 0.92rem;
  color: var(--color-ink-soft);
  text-decoration: none;
  font-weight: 500;
}

.c-nav__link:hover,
.c-nav__link[aria-current="page"] {
  color: var(--color-forest);
}

.c-nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  background: var(--color-forest);
  color: var(--color-cream) !important;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.c-nav__cta:hover {
  background: var(--color-forest-mid);
  color: var(--color-cream) !important;
}

@media (max-width: 880px) {
  .c-header__toggle {
    display: block;
  }

  .c-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-cream);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    gap: var(--space-md);
    display: none;
  }

  .c-nav.is-open {
    display: flex;
    animation: fade-slide 0.35s var(--ease);
  }

  .c-nav__list {
    flex-direction: column;
    gap: 0.65rem;
  }

  .c-nav__cta {
    justify-content: center;
  }
}

/* Buttons */
.c-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.4rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}

.c-btn--primary {
  background: var(--color-forest);
  color: var(--color-cream);
}

.c-btn--primary:hover {
  background: var(--color-forest-mid);
  color: var(--color-cream);
  transform: translateY(-1px);
}

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

.c-btn--ghost:hover {
  background: var(--color-forest);
  color: var(--color-cream);
}

.c-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* Hero variants */
.c-hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
}

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

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

.c-hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(26, 46, 40, 0.88) 0%,
    rgba(26, 46, 40, 0.55) 45%,
    rgba(26, 74, 60, 0.35) 100%
  );
}

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

.c-hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-sm);
  color: var(--color-cream);
  line-height: 1.05;
}

.c-hero__brand span {
  color: var(--color-brass-light);
}

.c-hero__lead {
  font-size: 1.15rem;
  line-height: 1.65;
  color: rgba(250, 247, 240, 0.9);
  margin-bottom: var(--space-lg);
}

.c-hero .c-btn--primary {
  background: var(--color-brass-light);
  color: var(--color-ink);
}

.c-hero .c-btn--primary:hover {
  background: #f0d9a0;
  color: var(--color-ink);
}

.c-hero .c-btn--ghost {
  border-color: rgba(250, 247, 240, 0.55);
  color: var(--color-cream);
}

.c-hero .c-btn--ghost:hover {
  background: rgba(250, 247, 240, 0.12);
  color: var(--color-cream);
}

/* Page hero (inner pages) */
.c-page-hero {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.c-page-hero__title {
  margin-bottom: var(--space-sm);
}

.c-page-hero__desc {
  color: var(--color-muted);
  max-width: 36rem;
  margin: 0;
  font-size: 1.1rem;
}

.c-page-hero--media {
  position: relative;
  min-height: 16rem;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding: 0;
  border: none;
}

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

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

.c-page-hero--media .c-page-hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 46, 40, 0.85), rgba(26, 46, 40, 0.3));
}

.c-page-hero--media .c-page-hero__inner {
  position: relative;
  z-index: 1;
  padding: var(--space-xl) 0 var(--space-lg);
  color: var(--color-cream);
}

.c-page-hero--media .c-page-hero__title {
  color: var(--color-cream);
}

.c-page-hero--media .c-page-hero__desc {
  color: rgba(250, 247, 240, 0.85);
}

/* Offer strip */
.c-offer-preview {
  display: grid;
  gap: var(--space-lg);
}

.c-offer-preview__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: var(--space-lg);
  align-items: center;
}

.c-offer-preview__item:nth-child(even) {
  direction: rtl;
}

.c-offer-preview__item:nth-child(even) > * {
  direction: ltr;
}

.c-offer-preview__img {
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.c-offer-preview__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.c-offer-preview__item:hover .c-offer-preview__img img {
  transform: scale(1.04);
}

.c-offer-preview__meta h3 {
  margin-bottom: var(--space-sm);
}

.c-offer-preview__meta p {
  color: var(--color-muted);
}

@media (max-width: 720px) {
  .c-offer-preview__item,
  .c-offer-preview__item:nth-child(even) {
    grid-template-columns: 1fr;
    direction: ltr;
  }
}

/* Evidence / quotes */
.c-quote-block {
  border-left: 3px solid var(--color-brass);
  padding: var(--space-md) var(--space-lg);
  background: rgba(232, 196, 122, 0.12);
  margin: var(--space-lg) 0;
}

.c-quote-block__text {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

.c-quote-block__cite {
  font-style: normal;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.c-reviews-grid {
  display: grid;
  gap: var(--space-lg);
}

.c-review {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.c-review:last-child {
  border-bottom: none;
}

.c-review__body {
  font-size: 1.05rem;
}

.c-review__meta {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-top: var(--space-sm);
}

.c-review--featured {
  background: var(--color-paper);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Service list */
.c-service-list {
  display: grid;
  gap: var(--space-xl);
}

.c-service-row {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: start;
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.c-service-row__img {
  aspect-ratio: 5 / 4;
  overflow: hidden;
}

.c-service-row__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c-service-row__tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-brass);
  margin-bottom: var(--space-xs);
}

@media (max-width: 640px) {
  .c-service-row {
    grid-template-columns: 1fr;
  }
}

/* Pricing */
.c-price-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
}

.c-price-table th,
.c-price-table td {
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.c-price-table th {
  font-family: var(--font-display);
  font-weight: 600;
  background: rgba(26, 74, 60, 0.06);
}

.c-price-note {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.c-price-block {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.c-price-block__amount {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-forest);
  margin: var(--space-sm) 0;
}

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

.c-post-teaser {
  display: grid;
  grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.c-post-teaser__img {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.c-post-teaser__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c-post-teaser__date {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.c-post-teaser h2 {
  font-size: 1.35rem;
  margin-bottom: var(--space-sm);
}

.c-post-teaser h2 a {
  text-decoration: none;
  color: var(--color-ink);
}

.c-post-teaser h2 a:hover {
  color: var(--color-forest);
}

@media (max-width: 640px) {
  .c-post-teaser {
    grid-template-columns: 1fr;
  }
}

.c-article__cover {
  margin: 0 0 var(--space-lg);
  aspect-ratio: 21 / 9;
  overflow: hidden;
}

.c-article__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.c-article__meta {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
}

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

.c-prose h3 {
  margin-top: var(--space-lg);
}

/* Forms */
.c-form {
  display: grid;
  gap: var(--space-md);
  max-width: 32rem;
}

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

.c-form__label {
  font-weight: 600;
  font-size: 0.95rem;
}

.c-form__input,
.c-form__select,
.c-form__textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-ink);
  border-radius: var(--radius);
  width: 100%;
}

.c-form__textarea {
  min-height: 8rem;
  resize: vertical;
}

.c-form__input:focus,
.c-form__select:focus,
.c-form__textarea:focus {
  outline: 2px solid var(--color-forest);
  outline-offset: 1px;
}

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

.c-form__field.is-invalid .c-form__error {
  display: block;
}

.c-form__field.is-invalid .c-form__input,
.c-form__field.is-invalid .c-form__select,
.c-form__field.is-invalid .c-form__textarea {
  border-color: var(--color-error);
}

.c-form__status {
  padding: var(--space-md);
  display: none;
  font-weight: 500;
}

.c-form__status.is-success {
  display: block;
  background: rgba(26, 74, 60, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-forest);
}

.c-form__status.is-error {
  display: block;
  background: rgba(139, 46, 46, 0.08);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.c-contact-aside {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.c-contact-aside dt {
  font-weight: 600;
  margin-top: var(--space-sm);
}

.c-contact-aside dd {
  margin: 0.15rem 0 0;
  color: var(--color-ink-soft);
}

/* Process / custom page */
.c-steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0;
}

.c-steps__item {
  counter-increment: step;
  position: relative;
  padding: 0 0 var(--space-xl) 3.5rem;
  border-left: 1px solid var(--color-border);
  margin-left: 1rem;
}

.c-steps__item:last-child {
  padding-bottom: 0;
}

.c-steps__item::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -1.35rem;
  top: 0;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-forest);
  color: var(--color-brass-light);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Team / about */
.c-portrait {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: start;
  margin: var(--space-lg) 0;
}

.c-portrait__img {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.c-portrait__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 640px) {
  .c-portrait {
    grid-template-columns: 1fr;
  }
}

.c-values {
  display: grid;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.c-values__item h3 {
  margin-bottom: var(--space-xs);
  font-size: 1.1rem;
}

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

/* FAQ */
.c-faq details {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}

.c-faq summary {
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.c-faq summary::-webkit-details-marker {
  display: none;
}

.c-faq details[open] summary {
  color: var(--color-forest);
  margin-bottom: var(--space-sm);
}

/* Footer */
.c-footer {
  margin-top: var(--space-2xl);
  background: var(--color-ink);
  color: rgba(250, 247, 240, 0.85);
  padding: var(--space-xl) 0 var(--space-lg);
}

.c-footer a {
  color: var(--color-brass-light);
  text-decoration: none;
}

.c-footer a:hover {
  color: var(--color-cream);
}

.c-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.c-footer__brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-cream);
  margin-bottom: var(--space-sm);
}

.c-footer__heading {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--color-cream);
  margin-bottom: var(--space-sm);
}

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

.c-footer__list li {
  margin-bottom: 0.4rem;
}

.c-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(250, 247, 240, 0.15);
  font-size: 0.88rem;
}

.c-footer__copy {
  margin-top: var(--space-md);
  font-size: 0.85rem;
  color: rgba(250, 247, 240, 0.55);
}

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

/* Cookie banner */
.c-cookie {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--color-ink);
  color: var(--color-cream);
  padding: var(--space-md);
  border-top: 2px solid var(--color-brass);
  display: none;
  box-shadow: var(--shadow-soft);
}

.c-cookie.is-visible {
  display: block;
  animation: fade-slide 0.4s var(--ease);
}

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

.c-cookie__text {
  flex: 1 1 16rem;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.c-cookie__text a {
  color: var(--color-brass-light);
}

.c-cookie__actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.c-cookie__actions .c-btn {
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
}

.c-cookie__actions .c-btn--ghost {
  border-color: rgba(250, 247, 240, 0.4);
  color: var(--color-cream);
}

/* 404 */
.c-notfound {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.c-notfound__code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 7rem);
  color: var(--color-forest);
  line-height: 1;
  margin: 0 0 var(--space-sm);
}

/* Reveal animation */
.js-reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

@keyframes hero-ken {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.06);
  }
}

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

.c-legal table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.92rem;
}

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

.c-legal th {
  background: rgba(26, 74, 60, 0.06);
}