/* 
==========================================
REALVISION3D - Portfolio Page Stylesheet
==========================================
*/

/* === Page Header === */
.page-header {
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: calc(var(--spacing-lg) + 8rem) 0 var(--spacing-lg);
  text-align: center;
}

.page-title {
  font-size: 4.8rem;
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  font-size: 1.8rem;
  max-width: 70rem;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.8);
}

/* === Filter Section === */
.filter-section {
  background-color: var(--color-white);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.filter-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.filter-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.filter-btn {
  background: none;
  border: 1px solid var(--color-border);
  padding: 0.8rem 1.5rem;
  font-size: 1.4rem;
  border-radius: 3px;
  cursor: pointer;
  transition: var(--transition-normal);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-btn.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.filter-search {
  display: flex;
  position: relative;
  width: 30rem;
}

.filter-search input {
  width: 100%;
  padding: 1rem 4rem 1rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-size: 1.4rem;
  transition: var(--transition-fast);
}

.filter-search input:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}

.search-btn {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 4rem;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--color-text-light);
  cursor: pointer;
  transition: var(--transition-fast);
}

.search-btn:hover {
  color: var(--color-primary);
}

/* === Portfolio Grid === */
.portfolio-grid-section {
  padding: var(--spacing-lg) 0;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(35rem, 1fr));
  gap: var(--spacing-md);
}

.portfolio-item {
  background-color: var(--color-white);
  border-radius: 5px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  position: relative;
}

.portfolio-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.portfolio-image {
  position: relative;
  height: 25rem;
  overflow: hidden;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.05);
}

.portfolio-badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 1.2rem;
  font-weight: 500;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  z-index: 2;
  border-radius: 3px;
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.portfolio-button {
  background-color: var(--color-white);
  color: var(--color-secondary);
  padding: 1rem 2rem;
  border-radius: 3px;
  font-size: 1.4rem;
  font-weight: 500;
  transition: var(--transition-fast);
  text-align: center;
}

.portfolio-button:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.portfolio-button-tour {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.portfolio-button-tour:hover {
  background-color: var(--color-primary-dark);
}

.portfolio-button i {
  margin-right: 0.5rem;
}

.portfolio-content {
  padding: var(--spacing-md);
}

.portfolio-title {
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
}

.portfolio-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.portfolio-location {
  display: flex;
  align-items: center;
  color: var(--color-text-light);
  font-size: 1.4rem;
}

.portfolio-location i {
  margin-right: 0.5rem;
  color: var(--color-primary);
}

.portfolio-category {
  background-color: var(--color-light-bg);
  padding: 0.3rem 1rem;
  border-radius: 3px;
  font-size: 1.2rem;
  color: var(--color-text);
}

.portfolio-stats {
  display: flex;
  justify-content: space-between;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

.stat-item {
  display: flex;
  align-items: center;
  font-size: 1.3rem;
  color: var(--color-text-light);
}

.stat-item i {
  margin-right: 0.5rem;
  color: var(--color-primary);
}

/* === No Results === */
.no-results {
  text-align: center;
  padding: var(--spacing-lg);
  margin: var(--spacing-md) 0;
  background-color: var(--color-white);
  border-radius: 5px;
  box-shadow: var(--shadow-sm);
}

.no-results-icon {
  font-size: 5rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.no-results h3 {
  font-size: 2.4rem;
  margin-bottom: var(--spacing-sm);
}

.no-results p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

/* === Load More === */
.load-more-container {
  text-align: center;
  margin-top: var(--spacing-lg);
}

.load-more-btn {
  padding: 1.2rem 3rem;
}

/* === Case Study Section === */
.case-study-section {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-light-bg);
}

.case-study-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin-top: var(--spacing-md);
}

.case-study-image {
  border-radius: 5px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.case-study-image img {
  width: 100%;
  height: auto;
  display: block;
}

.case-study-title {
  font-size: 3.2rem;
  margin-bottom: var(--spacing-sm);
}

.case-study-description {
  font-size: 1.8rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

.case-study-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.result-item {
  text-align: center;
  background-color: var(--color-white);
  padding: var(--spacing-md);
  border-radius: 5px;
  box-shadow: var(--shadow-sm);
}

.result-number {
  font-size: 3.6rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.result-label {
  font-size: 1.4rem;
  color: var(--color-text-light);
  line-height: 1.4;
}

/* === Technology Info Section === */
.technology-info-section {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-white);
}

.tech-info-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.tech-info-text h2 {
  font-size: 3.2rem;
  margin-bottom: var(--spacing-md);
}

.tech-info-text p {
  font-size: 1.7rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.tech-info-text ul {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.tech-info-text li {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-xs);
  font-size: 1.6rem;
}

.tech-info-text li i {
  color: var(--color-primary);
  margin-right: 1rem;
}

.video-container {
  position: relative;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.video-container img {
  width: 100%;
  height: auto;
  display: block;
}

.video-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8rem;
  height: 8rem;
  background-color: rgba(212, 175, 55, 0.8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 3rem;
  cursor: pointer;
  transition: var(--transition-normal);
}

.video-play-button:hover {
  background-color: var(--color-primary);
  transform: translate(-50%, -50%) scale(1.1);
}

/* === CTA Section === */
.cta-section {
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../assets/images/cta-bg.jpg') center/cover no-repeat;
  color: var(--color-white);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.cta-content {
  max-width: 70rem;
  margin: 0 auto;
}

.cta-title {
  font-size: 3.6rem;
  margin-bottom: var(--spacing-sm);
}

.cta-description {
  font-size: 1.8rem;
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.8);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* === Animations === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.portfolio-item {
  animation: fadeIn 0.5s ease forwards;
}

/* Staggered animation */
.portfolio-item:nth-child(1) { animation-delay: 0.1s; }
.portfolio-item:nth-child(2) { animation-delay: 0.2s; }
.portfolio-item:nth-child(3) { animation-delay: 0.3s; }
.portfolio-item:nth-child(4) { animation-delay: 0.4s; }
.portfolio-item:nth-child(5) { animation-delay: 0.5s; }
.portfolio-item:nth-child(6) { animation-delay: 0.6s; }
.portfolio-item:nth-child(7) { animation-delay: 0.7s; }
.portfolio-item:nth-child(8) { animation-delay: 0.8s; }
.portfolio-item:nth-child(9) { animation-delay: 0.9s; }

/* === Responsive === */
@media (max-width: 992px) {
  .case-study-container,
  .tech-info-content {
    grid-template-columns: 1fr;
  }
  
  .case-study-image,
  .tech-info-video {
    margin-bottom: var(--spacing-md);
  }
  
  .case-study-results {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .page-title {
    font-size: 3.6rem;
  }
  
  .filter-container {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-categories {
    justify-content: center;
  }
  
  .filter-search {
    width: 100%;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(28rem, 1fr));
  }
  
  .case-study-results {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .cta-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .cta-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .page-title {
    font-size: 3rem;
  }
  
  .portfolio-image {
    height: 20rem;
  }
  
  .portfolio-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .portfolio-stats {
    flex-direction: column;
    gap: 0.8rem;
  }
}