/* Galleria Moderna - Mobile First, Responsive Design */

:root {
  --primary-color: #0d6efd;
  --secondary-color: #22b14c;
  --accent-color: #ffc107;
  --dark-bg: #1a1a1a;
  --light-bg: #f8fafc;
  --gradient-primary: linear-gradient(135deg, #0d6efd 0%, #22b14c 100%);
  --gradient-secondary: linear-gradient(135deg, #22b14c 0%, #0d6efd 100%);
  --shadow-light: 0 4px 20px rgba(13, 110, 253, 0.1);
  --shadow-dark: 0 8px 32px rgba(0, 0, 0, 0.12);
  --border-radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

/* Container Galleria */
.gallery-container {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-rows: minmax(200px, 1fr);
  gap: 20px;
  padding: 20px;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

/* Item Galleria */
.gallery-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  background: white;
  cursor: pointer;
  height: 100%;
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* Wrapper Immagine */
.image-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 200px;
  overflow: hidden;
  display: block;
  background: #f4f4f4;
  border-radius: var(--border-radius);
}

.gallery-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  display: block;
  min-width: 0;
  min-height: 0;
}

.image-wrapper:hover .gallery-image {
  transform: scale(1.1);
}

/* Overlay */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition);
}

.image-wrapper:hover .overlay {
  opacity: 1;
}

/* Pulsante Visualizza */
.view-btn {
  padding: 10px 24px;
  background: var(--gradient-primary);
  border: none;
  color: white;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-light);
  position: relative;
  overflow: visible;
}

.view-btn:hover {
  background: var(--gradient-secondary);
  box-shadow: 0 6px 20px rgba(13, 110, 253, 0.3);
  transform: translateY(-2px);
}

.view-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s;
}

.view-btn:hover::before {
  left: 100%;
}

/* Pulsante Upload */
.upload-btn {
  padding: 12px 30px;
  font-size: 16px;
  border-radius: var(--border-radius);
  background: var(--gradient-secondary);
  border: none;
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-light);
  position: relative;
  overflow: visible;
}

.upload-btn:hover {
  background: var(--gradient-primary);
  box-shadow: 0 6px 20px rgba(34, 139, 34, 0.3);
  transform: translateY(-2px);
}

.upload-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s;
}

.upload-btn:hover::before {
  left: 100%;
}

/* Container Immagine Singola */
.img-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, var(--bg-color), #e9ecef);
}

.centered-image {
  max-width: 90vw;
  width: 100%;
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.centered-image:hover {
  transform: scale(1.02);
}

/* Pulsante Primario */
.btn-primary {
  background: var(--gradient-primary);
  border: none;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  padding: 12px 24px;
  color: white;
  cursor: pointer;
  position: relative;
  overflow: visible;
}

.btn-primary:hover {
  background: var(--gradient-secondary);
  box-shadow: 0 6px 20px rgba(13, 110, 253, 0.3);
  transform: translateY(-2px);
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

/* Media Queries per Responsive */

/* Mobile small */
@media (max-width: 575px) {
  .gallery-container {
    grid-template-columns: 1fr;
    gap: 15px;
    padding: 15px;
  }

  .image-wrapper {
    min-height: 180px;
  }

  .centered-image {
    max-width: 95%;
  }
}

/* Tablet */
@media (min-width: 768px) {
  .gallery-container {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: minmax(250px, 1fr);
    gap: 25px;
    padding: 25px;
  }

  .image-wrapper {
    width: 100%;
    min-height: 250px;
  }

  .centered-image {
    max-width: 80%;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .gallery-container {
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(300px, 1fr);
    gap: 30px;
    padding: 30px;
  }

  .image-wrapper {
    width: 100%;
    min-height: 300px;
  }

  .centered-image {
    max-width: 900px;
  }
}

/* Large Desktop */
@media (min-width: 1200px) {
  .gallery-container {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(350px, 1fr);
    gap: 35px;
    padding: 35px;
  }

  .image-wrapper {
    min-height: 350px;
  }
}