.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: var(--text-base);
  line-height: 1.4;
  transition: all 0.25s ease;
  min-height: 48px;
  min-width: 48px;
}

.btn--primary {
  background-color: var(--brown-200);
  color: var(--white);
}

.btn--primary:hover {
  background-color: var(--brown-300);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--brown-200);
  border: 2px solid var(--brown-200);
}

.btn--outline:hover {
  background-color: var(--brown-200);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--whatsapp {
  background-color: var(--green);
  color: var(--white);
}

.btn--whatsapp:hover {
  background-color: var(--green-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  min-height: 40px;
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn:active {
  transform: translateY(0);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background-color: transparent;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.navbar--scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .navbar__inner {
    padding: 0 var(--space-8);
  }
}

.navbar__logo {
  display: flex;
  align-items: center;
  z-index: 1001;
}

.navbar__logo img {
  display: block;
  height: 40px;
  width: auto;
}

.navbar__logo:hover {
  opacity: 0.85;
}

.navbar__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  z-index: 1001;
  cursor: pointer;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--brown-400);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.navbar__toggle--active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__toggle--active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle--active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (min-width: 768px) {
  .navbar__toggle {
    display: none;
  }
}

.navbar__menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  height: 100vh;
  background-color: var(--white);
  padding: calc(var(--nav-height) + var(--space-8)) var(--space-6) var(--space-6);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  box-shadow: var(--shadow-xl);
  z-index: 999;
}

.navbar__menu--open {
  transform: translateX(0);
}

@media (min-width: 768px) {
  .navbar__menu {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    transform: none;
    box-shadow: none;
    background-color: transparent;
    display: flex;
    align-items: center;
    gap: var(--space-1);
  }
}

.navbar__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--brown-400);
  font-weight: 500;
  font-size: var(--text-base);
  border-radius: var(--radius-md);
  transition: color 0.2s, background-color 0.2s;
}

.navbar__link:hover {
  color: var(--brown-200);
  background-color: var(--beige-50);
}

.navbar__link--active {
  color: var(--brown-200);
}

@media (min-width: 768px) {
  .navbar__link {
    padding: var(--space-2) var(--space-3);
    border-radius: 0;
    position: relative;
  }

  .navbar__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-3);
    right: var(--space-3);
    height: 2px;
    background-color: var(--brown-200);
    transform: scaleX(0);
    transition: transform 0.25s ease;
  }

  .navbar__link:hover::after,
  .navbar__link--active::after {
    transform: scaleX(1);
  }

  .navbar__link:hover {
    background-color: transparent;
  }
}

.lang-switcher {
  display: flex;
  gap: var(--space-1);
  margin-top: var(--space-4);
}

@media (min-width: 768px) {
  .lang-switcher {
    margin-top: 0;
    margin-left: var(--space-3);
    border-left: 1px solid var(--beige-200);
    padding-left: var(--space-3);
  }
}

.lang-switcher__btn {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--brown-200);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background-color 0.2s;
  min-width: 32px;
  text-align: center;
}

.lang-switcher__btn--active {
  color: var(--brown-200);
  background-color: var(--beige-100);
}

.lang-switcher__btn:hover {
  color: var(--brown-300);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--beige-100) 0%, var(--beige-50) 50%, var(--beige-100) 100%);
}

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

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, var(--beige-200) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, var(--brown-100) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 80%, var(--beige-100) 0%, transparent 40%);
  opacity: 0.5;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-6);
  max-width: 800px;
}

.hero__title {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--brown-500);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--brown-400);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

@media (min-width: 768px) {
  .hero {
    min-height: 90vh;
  }

  .hero__title {
    font-size: var(--text-6xl);
  }

  .hero__subtitle {
    font-size: var(--text-xl);
  }
}

.stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  text-align: center;
}

@media (min-width: 640px) {
  .stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stats__number {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--brown-200);
  display: block;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stats__label {
  font-size: var(--text-sm);
  color: var(--brown-200);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--beige-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card__image svg {
  width: 48px;
  height: 48px;
  color: var(--brown-200);
  opacity: 0.5;
}

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

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--brown-400);
  margin-bottom: var(--space-2);
}

.card__text {
  font-size: var(--text-sm);
  color: var(--brown-400);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-8);
}

.filter-bar__btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--brown-300);
  background-color: var(--white);
  border-radius: var(--radius-full);
  border: 1px solid var(--beige-200);
  transition: all 0.2s ease;
}

.filter-bar__btn:hover {
  color: var(--brown-200);
  border-color: var(--brown-200);
}

.filter-bar__btn--active {
  color: var(--white);
  background-color: var(--brown-200);
  border-color: var(--brown-200);
}

.product-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card__image {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--beige-100), var(--beige-200));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-card__body {
  padding: var(--space-4);
}

.product-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--brown-400);
  margin-bottom: var(--space-1);
}

.product-card__category {
  font-size: var(--text-xs);
  color: var(--brown-200);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.product-card__desc {
  font-size: var(--text-sm);
  color: var(--brown-400);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  padding-top: 0;
}

.product-card[data-category]:not([data-category=""]) {
  display: block;
}

.product-card.hidden-product {
  display: none;
}

.comparison-slider {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

.comparison-slider__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: linear-gradient(135deg, var(--beige-200), var(--beige-100));
}

.comparison-slider__before,
.comparison-slider__after {
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
}

.comparison-slider__after {
  clip-path: inset(0 50% 0 0);
}

.comparison-slider__after img,
.comparison-slider__before img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.comparison-slider__label {
  position: absolute;
  bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background-color: rgba(0, 0, 0, 0.6);
  color: var(--white);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  pointer-events: none;
}

.comparison-slider__label--before {
  left: var(--space-4);
}

.comparison-slider__label--after {
  right: var(--space-4);
}

.comparison-slider__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background-color: var(--white);
  transform: translateX(-50%);
  cursor: ew-resize;
  z-index: 10;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}

.comparison-slider__handle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  background-color: var(--white);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.comparison-slider__handle::after {
  content: '⟷';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--text-lg);
  color: var(--brown-400);
  z-index: 1;
  line-height: 1;
}

.review-carousel {
  overflow: hidden;
  position: relative;
}

.review-carousel__track {
  display: flex;
  transition: transform 0.4s ease;
}

.review-card {
  flex: 0 0 100%;
  padding: var(--space-6);
  text-align: center;
}

@media (min-width: 768px) {
  .review-card {
    flex: 0 0 50%;
  }
}

@media (min-width: 1024px) {
  .review-card {
    flex: 0 0 33.333%;
  }
}

.review-card__text {
  font-size: var(--text-base);
  color: var(--brown-400);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: var(--space-4);
  position: relative;
  padding: 0 var(--space-4);
}

.review-card__text::before {
  content: '"';
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  color: var(--beige-200);
  position: absolute;
  top: -16px;
  left: 0;
  line-height: 1;
}

.review-card__author {
  font-weight: 600;
  color: var(--brown-500);
  font-size: var(--text-sm);
}

.review-card__project {
  font-size: var(--text-xs);
  color: var(--brown-200);
}

.review-carousel__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.review-carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--beige-200);
  transition: background-color 0.2s, transform 0.2s;
  cursor: pointer;
}

.review-carousel__dot--active {
  background-color: var(--brown-200);
  transform: scale(1.3);
}

.contact-section {
  background-color: var(--beige-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

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

.form {
  background-color: var(--white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form__group {
  margin-bottom: var(--space-5);
}

.form__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--brown-400);
  margin-bottom: var(--space-2);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--beige-200);
  border-radius: var(--radius-md);
  background-color: var(--white);
  color: var(--brown-500);
  font-size: var(--text-base);
  transition: border-color 0.2s, box-shadow 0.2s;
  min-height: 48px;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--brown-200);
  box-shadow: 0 0 0 3px rgba(166, 124, 82, 0.15);
}

.form__textarea {
  min-height: 120px;
  resize: vertical;
}

.form__input--error {
  border-color: var(--red);
}

.form__input--error:focus {
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.15);
}

.form__error {
  font-size: var(--text-xs);
  color: var(--red);
  margin-top: var(--space-1);
  display: none;
}

.form__error--visible {
  display: block;
}

.form__hint {
  font-size: var(--text-xs);
  color: #6b7280;
  margin-top: var(--space-1);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-info__item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background-color: var(--beige-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brown-200);
}

.contact-info__icon svg {
  width: 24px;
  height: 24px;
}

.contact-info__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--brown-400);
  margin-bottom: var(--space-1);
}

.contact-info__value {
  font-size: var(--text-sm);
  color: var(--brown-400);
  line-height: 1.5;
}

.contact-info__value a {
  color: var(--brown-200);
}

.contact-info__value a:hover {
  color: var(--brown-300);
}

.footer {
  background-color: var(--brown-500);
  color: var(--beige-100);
  padding: var(--space-12) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer__brand {
  display: inline-block;
  margin-bottom: var(--space-3);
}

.footer__brand img {
  display: block;
  height: 48px;
  width: auto;
}

.footer__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  opacity: 0.8;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--white);
  margin-bottom: var(--space-4);
}

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

.footer__link {
  color: var(--beige-100);
  font-size: var(--text-sm);
  opacity: 0.8;
  transition: opacity 0.2s;
}

.footer__link:hover {
  opacity: 1;
  color: var(--beige-100);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-6);
  text-align: center;
  font-size: var(--text-sm);
  opacity: 0.6;
}

.whatsapp-fab {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 999;
  width: 56px;
  height: 56px;
  background-color: var(--green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  animation: whatsapp-pulse 4s ease-in-out infinite;
}

.whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-fab svg {
  width: 28px;
  height: 28px;
  fill: var(--white);
}

@keyframes whatsapp-pulse {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 24px rgba(37, 211, 102, 0.7);
  }
}

@media (min-width: 768px) {
  .whatsapp-fab {
    bottom: var(--space-8);
    right: var(--space-8);
    width: 60px;
    height: 60px;
  }

  .whatsapp-fab svg {
    width: 30px;
    height: 30px;
  }
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal--open {
  opacity: 1;
  pointer-events: auto;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(30, 30, 30, 0.9);
}

.modal__content {
  position: relative;
  max-width: 900px;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--white);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.modal--open .modal__content {
  transform: scale(1);
}

.modal__img {
  width: 100%;
  max-height: 80vh;
  object-fit: contain;
  display: block;
  background-color: var(--beige-100);
}

.modal__close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 40px;
  height: 40px;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: background-color 0.2s;
  z-index: 1;
}

.modal__close:hover {
  background-color: rgba(0, 0, 0, 0.7);
}

.modal__close svg {
  width: 20px;
  height: 20px;
}

.placeholder-img {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--beige-100), var(--beige-200));
  color: var(--brown-200);
  font-size: var(--text-sm);
  font-weight: 500;
  width: 100%;
  height: 100%;
  min-height: 200px;
}

.placeholder-img svg {
  width: 48px;
  height: 48px;
  opacity: 0.4;
  margin-bottom: var(--space-2);
}

@media (min-width: 768px) {
  .placeholder-img {
    min-height: 250px;
  }
}