/* ============================================================
   SECTIONS — Hero, Trust Bar, Section Wrapper, Product Grid,
               CTA, Product Detail, Services, About Snippet
   Base styles = mobile. Responsive overrides in responsive.css
   ============================================================ */

/* ============================================================
   SECTION WRAPPER (generic)
   ============================================================ */
.bnf-section {
  padding: var(--section-gap) 20px;
}

.bnf-section--gray {
  background: var(--color-surface);
}

.bnf-section--navy {
  background: var(--bnf-navy);
}

.bnf-section--white {
  background: var(--color-bg);
}

.bnf-section__inner {
  max-width: var(--max-width);
  margin-inline: auto;
}

.bnf-section__heading {
  text-align: center;
  margin-bottom: 40px;
}

.bnf-section__heading h2 {
  margin-bottom: 12px;
}

.bnf-section__heading p {
  font-size: 18px;
  color: var(--color-text-2);
  max-width: 60ch;
  margin-inline: auto;
}

/* ============================================================
   HERO
   Mobile: single column, no min-height
   Desktop override: 2-column grid, 80vh — in responsive.css
   ============================================================ */
.bnf-hero {
  background: var(--color-surface);
  padding: 64px 20px;
  display: flex;
  align-items: center;
}

.bnf-hero__inner {
  max-width: var(--max-width);
  margin-inline: auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.bnf-hero__content {
  display: flex;
  flex-direction: column;
}

.bnf-hero__eyebrow {
  font-size: 14px;
  font-weight: 600;
  color: var(--bnf-blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

/* .bnf-hero__title size defined in style.css */
.bnf-hero__title {
  color: var(--color-text);
  margin-bottom: 20px;
}

.bnf-hero__sub {
  font-size: 18px;
  color: var(--color-text-2);
  margin-bottom: 32px;
  line-height: 1.7;
  max-width: 52ch;
}

.bnf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.bnf-hero__img {
  display: flex;
  align-items: center;
  justify-content: center;
}

.bnf-hero__img img {
  width: 100%;
  max-width: 520px;
  object-fit: contain;
}

/* ============================================================
   TRUST BAR
   Mobile: single column — responsive.css: 3 columns
   ============================================================ */
.bnf-trust-bar {
  padding: 48px 20px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.bnf-trust-bar__inner {
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.bnf-trust-item {
  text-align: center;
}

.bnf-trust-item__icon {
  width: 48px;
  height: 48px;
  margin-inline: auto;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border-radius: var(--radius-md);
}

.bnf-trust-item__icon svg,
.bnf-trust-item__icon img {
  width: 28px;
  height: 28px;
}

.bnf-trust-item__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.bnf-trust-item__desc {
  font-size: 15px;
  color: var(--color-text-2);
  max-width: none;
  line-height: 1.6;
}

/* ============================================================
   PRODUCT GRID
   Mobile: 1 column — responsive.css: 2 col → 3 col
   ============================================================ */
.bnf-product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

/* ============================================================
   CTA SECTION (Navy background)
   ============================================================ */
.bnf-cta {
  background: var(--bnf-navy);
  padding: 80px 20px;
  text-align: center;
}

.bnf-cta__inner {
  max-width: 640px;
  margin-inline: auto;
}

.bnf-cta__title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.2;
}

.bnf-cta__sub {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 36px;
  max-width: none;
  line-height: 1.7;
}

.bnf-cta__btn {
  display: inline-block;
  background: #ffffff;
  color: var(--bnf-navy) !important;
  padding: 16px 40px;
  border-radius: var(--radius-sm);
  font-size: 17px;
  font-weight: 600;
  font-family: 'Sarabun', sans-serif;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
}

.bnf-cta__btn:hover {
  background: var(--color-surface);
  color: var(--bnf-navy) !important;
  transform: translateY(-2px);
}

/* ============================================================
   PRODUCT DETAIL PAGE
   Mobile: single column — responsive.css: 2-column grid
   ============================================================ */
.bnf-product-detail {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.bnf-product-detail__gallery {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.bnf-product-detail__gallery img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.bnf-product-detail__info h1 {
  margin-bottom: 16px;
}

.bnf-product-detail__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.bnf-badge {
  display: inline-block;
  background: var(--color-surface);
  color: var(--color-text-2);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

/* ============================================================
   ABOUT SNIPPET (Home page)
   ============================================================ */
.bnf-about-snippet {
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: flex-start;
}

.bnf-about-snippet__content {
  flex: 1;
}

.bnf-about-snippet__content p {
  font-size: 18px;
  line-height: 1.8;
  max-width: 56ch;
}

.bnf-about-snippet__img {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.bnf-about-snippet__img img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ============================================================
   SERVICE CARDS
   ============================================================ */
.bnf-service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.bnf-service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.bnf-service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.bnf-service-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.bnf-service-card__title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.bnf-service-card__desc {
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.7;
  max-width: none;
  margin-bottom: 20px;
}