.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.95rem 1.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-base), color var(--transition-fast);
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(226, 22, 28, 0.45);
}

.btn--ghost {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--ghost:hover {
  background: var(--color-white);
  color: var(--color-dark);
  border-color: var(--color-white);
}

.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn--outline:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

.btn--icon::after {
  content: '→';
  font-family: system-ui;
  font-size: 1.1em;
  transition: transform var(--transition-fast);
}

.btn--icon:hover::after {
  transform: translateX(4px);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-light);
  position: relative;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover .card__image img {
  transform: scale(1.06);
}

.card__body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(226, 22, 28, 0.1);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  margin-bottom: var(--space-xs);
}

.card__icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 2;
}

.card__title {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 1.25rem;
  color: var(--color-dark);
}

.card__text {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.65;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--color-light);
  color: var(--color-dark);
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.card__link {
  margin-top: auto;
  padding-top: var(--space-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.card__link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.card__link:hover::after {
  transform: translateX(4px);
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.95rem 1.1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(226, 22, 28, 0.12);
}

.textarea {
  resize: vertical;
  min-height: 140px;
}

.label {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-dark);
  margin-bottom: 0.4rem;
}

.field {
  display: flex;
  flex-direction: column;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: rgba(226, 22, 28, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
}

.badge--dark {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

.icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-white);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.icon-box svg {
  width: 30px;
  height: 30px;
}

.icon-box--ghost {
  background: rgba(226, 22, 28, 0.1);
  color: var(--color-primary);
}

.divider {
  height: 1px;
  background: var(--color-border);
  border: 0;
  margin-block: var(--space-lg);
}

/* ============ WATERMARK ============ */
.project-card::before,
.swiper-slide::after,
.service-card__image::after {
  content: '';
  position: absolute;
  top: 15px;
  right: 15px;
  width: 70px;
  height: 35px;
  background: url('../img/logo-marcadeagua.webp') no-repeat center/contain;
  opacity: 0.5;
  z-index: 40;
  pointer-events: none;
  filter: brightness(0) invert(1) drop-shadow(0 2px 4px rgba(0,0,0,0.3));
  transition: opacity var(--transition-fast);
}

/* Hide the main card watermark if it's a slider to avoid double logo */
.project-card:has(.card__swiper)::before {
  display: none;
}

.swiper-slide {
  position: relative;
}

.project-card:hover::before,
.swiper-slide:hover::after,
.service-card:hover .service-card__image::after {
  opacity: 0.15;
}

/* ─── LIGHTBOX ────────────────────────────────────────────────────────── */
#lb {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.9);
  z-index: 9999;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  padding: clamp(1rem, 2vw, 1.75rem);
  gap: 0.85rem;
}
#lb.lb-open { display: flex; }

.lb-stage {
  position: relative;
  min-height: 0;
  flex: 1;
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr) 3.25rem;
  align-items: center;
  gap: 0.7rem;
}

.lb-figure {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  margin: 0;
}

.lb-img {
  max-width: 100%;
  max-height: min(72vh, 760px);
  object-fit: contain;
  border-radius: 6px;
  user-select: none;
  box-shadow: 0 20px 70px rgba(0,0,0,.36);
}

.lb-caption,
.lb-count {
  color: rgba(255,255,255,.82);
  font-size: 0.85rem;
  text-align: center;
  overflow-wrap: anywhere;
}

.lb-caption {
  max-width: min(900px, 90vw);
}

.lb-count {
  white-space: nowrap;
}

.lb-close, .lb-prev, .lb-next {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  font-size: 2.15rem;
  line-height: 1;
  width: 3.25rem;
  height: 3.25rem;
  padding: 0;
  opacity: .86;
  transition: opacity .15s, background .15s, transform .15s;
  user-select: none;
  display: grid;
  place-items: center;
  backdrop-filter: blur(8px);
}

.lb-close:hover, .lb-prev:hover, .lb-next:hover {
  background: var(--color-primary);
  opacity: 1;
  transform: scale(1.04);
}

.lb-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  z-index: 3;
  font-size: 1.8rem;
}

.lb-footer {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  align-items: center;
}

.lb-thumbs {
  width: min(100%, 920px);
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  padding: 0.15rem 0.2rem 0.45rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.35) transparent;
}

.lb-thumb {
  width: 82px;
  height: 60px;
  flex: 0 0 auto;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  overflow: hidden;
  padding: 0;
  background: rgba(255,255,255,.1);
  cursor: pointer;
  opacity: .55;
  transition: opacity .15s, border-color .15s, transform .15s;
}

.lb-thumb:hover,
.lb-thumb.is-active {
  opacity: 1;
}

.lb-thumb.is-active {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

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

.photo-placeholder {
  position: relative;
  cursor: zoom-in;
}

.photo-placeholder::before {
  content: 'Ampliar';
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  z-index: 2;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(0,0,0,.58);
  color: var(--color-white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .03em;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .18s, transform .18s;
  pointer-events: none;
  backdrop-filter: blur(8px);
}

.photo-placeholder::after {
  content: '+';
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.92);
  color: var(--color-dark);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
  opacity: .88;
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
}

.photo-placeholder:hover::before,
.photo-placeholder:focus-visible::before {
  opacity: 1;
  transform: translateY(0);
}

.photo-placeholder:focus-visible {
  outline: 3px solid rgba(226, 22, 28, 0.42);
  outline-offset: 4px;
  border-radius: var(--radius-md);
}

.placeholder-grid--limited .is-gallery-hidden {
  display: none;
}

.gallery-open-btn {
  width: 100%;
  margin-top: var(--space-sm);
  padding: 0.95rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-dark);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.gallery-open-btn:hover,
.gallery-open-btn:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 10px 26px rgba(226, 22, 28, 0.12);
  outline: none;
}

@media (max-width: 768px) {
  #lb {
    justify-content: flex-start;
    padding: max(0.75rem, env(safe-area-inset-top)) 0.65rem max(0.85rem, env(safe-area-inset-bottom));
    overflow-y: auto;
  }

  .lb-stage {
    width: 100%;
    flex: 0 0 auto;
    grid-template-columns: 1fr;
    margin-top: 3.5rem;
  }

  .lb-prev,
  .lb-next {
    position: absolute;
    z-index: 2;
    top: 50%;
    transform: translateY(-50%);
    width: 2.75rem;
    height: 2.75rem;
    background: rgba(0,0,0,.42);
  }

  .lb-prev { left: 0.25rem; }
  .lb-next { right: 0.25rem; }

  .lb-prev:hover,
  .lb-next:hover {
    transform: translateY(-50%);
  }

  .lb-img {
    width: 100%;
    max-height: 58vh;
  }

  .lb-caption {
    max-width: calc(100vw - 1.5rem);
    font-size: 0.78rem;
    line-height: 1.35;
  }

  .lb-footer {
    width: 100%;
    flex: 0 0 auto;
  }

  .lb-thumbs {
    width: 100%;
    max-width: calc(100vw - 1.3rem);
  }

  .lb-thumb {
    width: 68px;
    height: 52px;
  }

  .lb-close {
    top: max(0.75rem, env(safe-area-inset-top));
    right: 0.75rem;
  }

  .photo-placeholder::before {
    opacity: 1;
    transform: none;
  }
}

/* ─── GALLERY CAROUSEL ───────────────────────────────────────────────────── */
.gallery { margin-top: var(--space-md); }

.gallery__main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #111;
  aspect-ratio: 16/9;
  cursor: zoom-in;
}

.gallery__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.gallery__main:hover .gallery__img { transform: scale(1.025); }

.gallery__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  background: rgba(0,0,0,.52);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 2.75rem;
  height: 2.75rem;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .2s, background .2s;
  backdrop-filter: blur(6px);
  user-select: none;
}

.gallery__main:hover .gallery__arrow { opacity: 1; }
.gallery__arrow:hover { background: var(--color-primary); opacity: 1; }
.gallery__arrow--prev { left: var(--space-sm); }
.gallery__arrow--next { right: var(--space-sm); }

.gallery__hint {
  position: absolute;
  bottom: var(--space-sm);
  right: var(--space-sm);
  background: rgba(0,0,0,.58);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: .03em;
  padding: 0.28rem 0.65rem;
  border-radius: 2rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  pointer-events: none;
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity .2s;
}

.gallery__main:hover .gallery__hint { opacity: 1; }

.gallery__counter {
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-top: 0.5rem;
}

.gallery__thumbs {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.6rem;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.gallery__thumb {
  width: 80px;
  height: 58px;
  object-fit: cover;
  border-radius: var(--radius-md);
  cursor: pointer;
  opacity: .5;
  transition: opacity .2s, outline .15s;
  flex-shrink: 0;
  border: 2px solid transparent;
}

.gallery__thumb:hover { opacity: .8; }

.gallery__thumb.is-active {
  opacity: 1;
  border-color: var(--color-primary);
}

/* ============ WHATSAPP QR MODAL ============ */
.wa-modal-overlay {
  display: flex;
  visibility: hidden;
  opacity: 0;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99999;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.wa-modal-overlay.wa-open {
  visibility: visible;
  opacity: 1;
}

.wa-modal-card {
  background: var(--color-white);
  width: 100%;
  max-width: 420px;
  border-radius: 24px;
  padding: 2.5rem 2rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-align: center;
}

.wa-modal-overlay.wa-open .wa-modal-card {
  transform: scale(1);
}

.wa-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  font-size: 1.75rem;
  color: var(--color-muted);
  cursor: pointer;
  line-height: 1;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.wa-modal-close:hover {
  background: var(--color-light);
  color: var(--color-dark);
}

.wa-modal-icon-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: rgba(37, 211, 102, 0.1);
  border-radius: 50%;
  color: var(--color-whatsapp);
  margin-bottom: 1.25rem;
  position: relative;
}

.wa-modal-icon-container svg {
  width: 36px;
  height: 36px;
}

.wa-modal-icon-container::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.2);
  animation: wa-pulse 2s infinite;
}

@keyframes wa-pulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.15); opacity: 0; }
}

.wa-modal-title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  color: var(--color-dark);
  margin-bottom: 0.5rem;
  font-weight: 700;
  text-transform: none;
  letter-spacing: normal;
}

.wa-modal-subtitle {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 1.75rem;
  padding-inline: 0.5rem;
}

.wa-modal-qr-wrapper {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 1.25rem;
  display: inline-block;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.wa-modal-qr-img {
  display: block;
  width: 180px;
  height: 180px;
  object-fit: contain;
}

.wa-modal-instructions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.wa-modal-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-dark);
  font-size: 0.875rem;
  font-weight: 500;
}

.wa-modal-step svg {
  width: 18px;
  height: 18px;
  color: var(--color-muted);
}

.wa-modal-direct-link {
  font-size: 0.75rem;
  color: var(--color-muted);
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.wa-modal-direct-link:hover {
  color: var(--color-primary);
}