/* ============================================
   BIOLID - Inner Page Styles
   Reusable components for section pages.

   Covers: content sections (white/dark/alt),
   product rows, galleries, certification grids,
   technology cards, icon lists, split sections,
   image frames, form components, contact page
   layout, and the design page tech layout.
   ============================================ */

/* --- Content Sections --- */
.content-section {
  padding: 80px 0;
  background: var(--color-white);
}
.content-section--dark {
  padding: 80px 0;
  background: var(--color-dark);
  color: var(--color-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.content-section--dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,0.95), rgba(26,42,68,0.9));
  z-index: 1;
}
.content-section--dark > .container {
  position: relative;
  z-index: 2;
}
.content-section--alt {
  padding: 80px 0;
  background: var(--color-off-white);
  text-align: center;
}

/* --- Content Intro --- */
.content-intro {
  text-align: center;
  margin-bottom: 60px;
}
.content-intro p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-text-light);
}
.content-intro p strong {
  color: var(--color-dark);
}

/* --- Product Row (alternating layout) --- */
.product-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 60px;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: var(--shadow);
}
.product-row:last-child {
  margin-bottom: 0;
}
.product-row--reverse {
  direction: rtl;
}
.product-row--reverse > * {
  direction: ltr;
}
.product-row__image {
  position: relative;
  min-height: 300px;
  background-size: cover;
  background-position: center;
}
.product-row__text {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.product-row__text h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}
.product-row__text p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .product-row {
    grid-template-columns: 1fr;
  }
  .product-row--reverse {
    direction: ltr;
  }
  .product-row__image {
    min-height: 220px;
  }
  .product-row__text {
    padding: 32px 24px;
  }
}

/* --- Gallery --- */
.gallery {
  display: grid;
  gap: 12px;
  margin-top: 40px;
}
.gallery--4col {
  grid-template-columns: repeat(4, 1fr);
}
.gallery--3col {
  grid-template-columns: repeat(3, 1fr);
}
.gallery--2col {
  grid-template-columns: repeat(2, 1fr);
}
.gallery__item {
  overflow: hidden;
  border-radius: 2px;
  cursor: pointer;
}
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery__item:hover img {
  transform: scale(1.05);
}

@media (max-width: 1024px) {
  .gallery--4col {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 768px) {
  .gallery--4col {
    grid-template-columns: repeat(2, 1fr);
  }
  .gallery--3col {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .gallery--4col,
  .gallery--3col,
  .gallery--2col {
    grid-template-columns: 1fr 1fr;
  }
}

/* --- Certification Grid --- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.cert-grid--2col {
  grid-template-columns: repeat(2, 1fr);
}
.cert-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 24px;
  background: var(--color-white);
  border-radius: 4px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.cert-card img {
  max-height: 120px;
  width: auto;
  margin-bottom: 16px;
}
.cert-card__title {
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  color: var(--color-dark);
  margin-bottom: 8px;
}
.cert-card__desc {
  font-size: 0.85rem;
  text-align: center;
  color: var(--color-text-light);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cert-grid--2col {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 480px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Technology Cards (diseno page) --- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.tech-card {
  background: var(--color-white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.tech-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.tech-card__image {
  position: relative;
  overflow: hidden;
}
.tech-card__image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.tech-card:hover .tech-card__image img {
  transform: scale(1.05);
}
.tech-card__body {
  padding: 24px;
}
.tech-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}
.tech-card__text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .tech-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Icon List --- */
.icon-list {
  list-style: none;
  text-align: left;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}
.icon-list li {
  margin-bottom: 6px;
}
.icon-list li i {
  color: var(--color-gold);
  margin-right: 8px;
  font-size: 0.7em;
}

/* --- Split Section (empresa tech/finishes) --- */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  text-align: center;
}
.split-section__col {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.split-section__col--bordered {
  border-left: 1px solid rgba(255,255,255,0.1);
  border-right: 1px solid rgba(255,255,255,0.1);
  padding: 0 40px;
}
.split-section__label {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 12px;
}
.split-section__heading {
  font-size: 1rem;
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .split-section {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .split-section__col--bordered {
    border-left: none;
    border-right: none;
    border-top: 1px solid rgba(255,255,255,0.1);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 32px 0;
  }
}

/* --- Image Frame (gold border accent) --- */
.image-frame {
  position: relative;
  display: inline-block;
}
.image-frame::after {
  content: '';
  position: absolute;
  bottom: -12px;
  right: -12px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-gold);
  z-index: -1;
  border-radius: 2px;
}
.image-frame img {
  border-radius: 2px;
  position: relative;
  z-index: 1;
  width: 100%;
}

/* --- Form Components --- */
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 6px;
}
.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-light-gray);
  border-radius: 2px;
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  background: var(--color-white);
  color: var(--color-text);
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(200,163,95,0.15);
}
.form-textarea {
  resize: vertical;
  min-height: 140px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-privacy {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-top: 12px;
  line-height: 1.6;
}
.form-privacy a {
  color: var(--color-gold);
  text-decoration: underline;
}

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

/* --- Image with Hover Zoom (pure CSS) --- */
.hover-zoom {
  overflow: hidden;
  border-radius: 4px;
  position: relative;
}
.hover-zoom img {
  width: 100%;
  transition: transform 0.5s ease;
}
.hover-zoom:hover img {
  transform: scale(1.05);
}
.hover-zoom__label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(transparent, rgba(10,22,40,0.85));
}
.hover-zoom__label h4 {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
}
.hover-zoom__label p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.5;
  margin-top: 6px;
}

/* --- Multidisciplinar Grid (empresa page) --- */
.multi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.multi-grid a {
  display: block;
  overflow: hidden;
  border-radius: 4px;
  position: relative;
}
.multi-grid a img {
  width: 100%;
  transition: transform 0.5s ease;
}
.multi-grid a:hover img {
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .multi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .multi-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Timeline / Trajectory Image --- */
.trajectory-image {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  border-radius: 4px;
  box-shadow: var(--shadow-lg);
}

/* --- About Grid (reusable empresa-style layout) --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: center;
}
.about-grid__content {
  padding-left: 20px;
}
.about-grid__text {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-text-light);
  margin-bottom: 16px;
}
.about-grid__text strong {
  color: var(--color-dark);
}
.about-grid__highlight {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-grid__content {
    padding-left: 0;
  }
}

/* --- Subtitle with Quote --- */
.page-hero__quote {
  font-style: italic;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Tech Card Title (gold variant) --- */
.tech-card__title--gold {
  color: var(--color-gold);
}

/* --- Dropdown Chevron --- */
.nav__chevron {
  font-size: 0.6em;
  margin-left: 4px;
}

/* --- Footer Social Label --- */
.footer__social-label {
  font-size: 0.9rem;
  margin-bottom: 8px;
}

/* --- Dark Section Content (reusable) --- */
.dark-section-text {
  max-width: 800px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.75);
}

/* --- Contact Page --- */
.contact-intro {
  text-align: center;
  margin-bottom: 40px;
}
.contact-intro__heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}
.contact-intro__text {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: start;
}
.contact-card {
  text-align: center;
  padding: 40px;
  background: var(--color-off-white);
  border-radius: 4px;
}
.contact-card__logo {
  max-width: 150px;
  margin: 0 auto 24px;
}
.contact-card__title {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-dark);
  margin-bottom: 24px;
}
.contact-card__details {
  text-align: left;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--color-text-light);
}
.contact-card__row {
  margin-bottom: 16px;
}
.contact-card__row--last {
  margin-bottom: 0;
}
.contact-card__icon {
  color: var(--color-gold);
  margin-right: 10px;
  width: 16px;
}
.contact-card__indent {
  margin-left: 26px;
}
.contact-card__divider {
  border: none;
  border-top: 1px solid var(--color-light-gray);
  margin: 16px 0;
}
.contact-card__link {
  color: var(--color-gold);
  text-decoration: underline;
}
.btn--full {
  width: 100%;
  margin-top: 20px;
}
.form-status {
  display: none;
  padding: 16px;
  border-radius: 2px;
  font-size: 0.9rem;
  text-align: center;
}
.content-section--social {
  padding: 60px 0;
  background: var(--color-dark-alt);
  text-align: center;
  color: var(--color-white);
}
.content-section--social .section-label {
  color: var(--color-gold);
  margin-bottom: 24px;
}
.footer__social--centered {
  justify-content: center;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* --- Product Row Button Alignment --- */
.product-row__text .btn {
  align-self: flex-start;
}

/* --- Tech Layout (diseno page) --- */
.tech-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 40px;
  text-align: left;
}
.tech-slideshow-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}
.tech-slideshow {
  width: 100%;
  max-width: 500px;
  height: 350px;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  background: var(--color-navy);
}
.tech-slideshow img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.5s ease;
}

@media (max-width: 768px) {
  .tech-layout {
    grid-template-columns: 1fr;
  }
  .tech-slideshow {
    max-width: 100%;
    height: 260px;
  }
}

/* --- About Grid Images --- */
.about-grid__image {
  width: 100%;
  border-radius: 2px;
}
.about-grid__image + .about-grid__image {
  margin-top: 20px;
}

/* --- Section Title Alignment --- */
.section-title--left {
  text-align: left;
}

/* --- Split Section Logo --- */
.split-section__logo {
  max-width: 120px;
  margin: 0 auto 20px;
}

/* --- Cert Page --- */
.cert-intro {
  margin-bottom: 40px;
  text-align: center;
}
.cert-intro__logo {
  max-width: 250px;
  margin: 0 auto 24px;
}
.cert-grid--narrow {
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.cert-grid--narrow + .cert-grid--narrow {
  margin-top: 24px;
}

/* --- Cert Logos Row --- */
.certifications__logos {
  margin-top: 40px;
  text-align: center;
}
.certifications__logos img {
  max-height: 80px;
  width: auto;
  margin: 0 16px;
}