/* ========================================================================== 
   PORTFOLIO PAGE STYLES – Polveranovia
   Portfolio gallery, case studies, testimonials & results sections
   ========================================================================== */

/* ========================================================================== 
   Hero Section
   ========================================================================== */

.portfolio-hero {
  padding: var(--space-16) var(--space-4);
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
  position: relative;
  overflow: hidden;
  min-height: 75vh;
  display: flex;
  align-items: center;
}

.portfolio-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 164, 65, 0.08) 0%, transparent 70%);
  z-index: -1;
}

.portfolio-hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.portfolio-hero__content {
  padding: var(--space-12);
  border-radius: var(--radius-lg);
  animation: fadeInUp 0.8s ease-out;
}

.portfolio-hero__title {
  font-family: var(--font-serif);
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--color-primary-strong);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.portfolio-hero__subtitle {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  line-height: var(--line-height-snug);
}

.portfolio-hero__text {
  font-size: var(--font-size-md);
  color: var(--color-text-soft);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-10);
}

.portfolio-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(217, 164, 65, 0.2);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stat__number {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary-strong);
  display: block;
}

.stat__label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: var(--space-2);
}

.portfolio-hero__media {
  animation: fadeInRight 0.8s ease-out 0.2s both;
}

.portfolio-hero__media .card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.portfolio-hero__media img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 1024px) {
  .portfolio-hero__inner {
    grid-template-columns: 1fr;
  }
  
  .portfolio-hero__title {
    font-size: var(--font-size-4xl);
  }
  
  .portfolio-hero__subtitle {
    font-size: var(--font-size-xl);
  }
}

/* ========================================================================== 
   Filters Section
   ========================================================================== */

.portfolio-filters {
  padding: var(--space-12) var(--space-4);
  background: var(--color-bg-elevated);
  border-bottom: 1px solid rgba(217, 164, 65, 0.1);
}

.portfolio-filters__header {
  margin-bottom: var(--space-10);
}

.portfolio-filters__header h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
}

.portfolio-filters__header p {
  font-size: var(--font-size-md);
  color: var(--color-text-soft);
}

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

.filter-btn {
  padding: var(--space-3) var(--space-6);
  background: var(--color-bg-soft);
  color: var(--color-text-soft);
  border: 1px solid rgba(217, 164, 65, 0.2);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.filter-btn--active,
.filter-btn[aria-pressed="true"] {
  background: var(--color-primary);
  color: var(--color-bg);
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(217, 164, 65, 0.3);
}

@media (max-width: 768px) {
  .filters-controls {
    gap: var(--space-3);
    font-size: var(--font-size-xs);
  }
  
  .filter-btn {
    padding: var(--space-2) var(--space-4);
  }
}

/* ========================================================================== 
   Portfolio Grid Section
   ========================================================================== */

.portfolio-grid-section {
  padding: var(--space-20) var(--space-4);
  background: var(--color-bg);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  animation: fadeIn 0.6s ease-out;
}

.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.portfolio-card__image {
  position: relative;
  width: 100%;
  height: 350px;
  overflow: hidden;
  background: var(--color-bg-soft);
}

.portfolio-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}

.portfolio-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-base);
}

.portfolio-card:hover .portfolio-card__overlay {
  opacity: 1;
}

.portfolio-card:hover .portfolio-card__image img {
  transform: scale(1.08);
}

.portfolio-card__link {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-bg);
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  box-shadow: 0 0 30px rgba(217, 164, 65, 0.3);
}

.portfolio-card__link:hover {
  transform: scale(1.1);
  box-shadow: 0 0 50px rgba(217, 164, 65, 0.5);
}

.portfolio-card__content {
  padding: var(--space-8);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.portfolio-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  margin-top: 0;
}

.portfolio-card__meta {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-4);
}

.portfolio-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
  flex: 1;
}

.portfolio-card__tags {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: rgba(217, 164, 65, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.portfolio-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-soft-gold);
  transform: translateY(-8px);
}

@media (max-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-card__image {
    height: 280px;
  }
}

/* ========================================================================== 
   Case Studies Section
   ========================================================================== */

.portfolio-case-studies {
  padding: var(--space-20) var(--space-4);
  background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg-soft) 100%);
}

.portfolio-case-studies__header {
  margin-bottom: var(--space-12);
  text-align: center;
}

.portfolio-case-studies__header h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-6);
}

.portfolio-case-studies__header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-soft);
}

.case-study {
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: var(--space-12);
}

.case-study__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.case-study__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.case-study__image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.case-study__content h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.case-study__content p {
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.case-study__content strong {
  color: var(--color-primary);
}

.case-study__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin: var(--space-10) 0;
  padding: var(--space-8);
  background: rgba(217, 164, 65, 0.08);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

.case-stat {
  text-align: center;
}

.case-stat strong {
  display: block;
  font-size: var(--font-size-2xl);
  color: var(--color-primary-strong);
  margin-bottom: var(--space-2);
}

.case-stat span {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.case-study__quote {
  font-size: var(--font-size-md);
  color: var(--color-text-soft);
  line-height: var(--line-height-relaxed);
  padding: var(--space-6);
  border-left: 4px solid var(--color-primary);
  background: rgba(217, 164, 65, 0.05);
  border-radius: var(--radius-lg);
  margin-top: var(--space-8);
  font-style: italic;
}

@media (max-width: 1024px) {
  .case-study__grid {
    grid-template-columns: 1fr;
  }
  
  .case-study__stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========================================================================== 
   Results Section
   ========================================================================== */

.portfolio-results {
  padding: var(--space-20) var(--space-4);
  background: var(--color-bg);
}

.portfolio-results__header {
  margin-bottom: var(--space-16);
  text-align: center;
}

.portfolio-results__header h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-6);
}

.portfolio-results__header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-soft);
}

.portfolio-results__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.result-card {
  text-align: center;
  padding: var(--space-10);
  background: linear-gradient(135deg, rgba(217, 164, 65, 0.05), rgba(217, 164, 65, 0.02));
  border: 1px solid rgba(217, 164, 65, 0.1);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.result-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-soft-gold);
  transform: translateY(-4px);
}

.result-card__number {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--color-primary-strong);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.result-card__label {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.result-card__detail {
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

@media (max-width: 1024px) {
  .portfolio-results__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ========================================================================== 
   Testimonials Section
   ========================================================================== */

.portfolio-testimonials {
  padding: var(--space-20) var(--space-4);
  background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
}

.portfolio-testimonials__header {
  margin-bottom: var(--space-12);
  text-align: center;
}

.portfolio-testimonials__header h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-6);
}

.portfolio-testimonials__header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-soft);
}

.portfolio-testimonials__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.testimonial-card {
  padding: var(--space-10);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.testimonial-card__stars {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.testimonial-card__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
  font-style: italic;
}

.testimonial-card__text::before {
  content: '"';
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin-right: var(--space-2);
}

.testimonial-card__text::after {
  content: '"';
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin-left: var(--space-2);
}

.testimonial-card__footer {
  display: block;
  border-top: 1px solid rgba(217, 164, 65, 0.1);
  padding-top: var(--space-6);
}

.testimonial-card__name {
  display: block;
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.testimonial-card__title {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.testimonial-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-soft-gold);
  transform: translateY(-4px);
}

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

/* ========================================================================== 
   CTA Section
   ========================================================================== */

.portfolio-cta {
  padding: var(--space-20) var(--space-4);
  background: var(--color-bg);
}

.portfolio-cta__inner {
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  text-align: center;
  animation: fadeIn 0.8s ease-out;
}

.portfolio-cta__inner h2 {
  font-family: var(--font-serif);
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-6);
  color: var(--color-primary-strong);
}

.portfolio-cta__inner p {
  font-size: var(--font-size-lg);
  color: var(--color-text-soft);
  margin-bottom: var(--space-10);
}

.portfolio-cta__buttons {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
}

.portfolio-cta__buttons .btn {
  min-width: 240px;
}

@media (max-width: 768px) {
  .portfolio-cta__buttons {
    flex-direction: column;
  }
  
  .portfolio-cta__buttons .btn {
    width: 100%;
  }
}

/* ========================================================================== 
   Animations
   ========================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}