/* ============================================================
   ADVENTRA — Portfolio Page Styles
   ============================================================ */

/* ---- PORTFOLIO HERO ---- */
.portfolio-hero {
  min-height: 35vh;
  display: flex;
  align-items: center;
  padding: 9rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-mesh);
}

.portfolio-hero__title {
  font-size: var(--fs-display);
  font-weight: var(--fw-extrabold);
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 800px;
  margin: 0 auto var(--space-xl);
}

.portfolio-hero__subtitle {
  font-size: var(--fs-body-lg);
  color: var(--clr-text-secondary);
  line-height: var(--lh-relaxed);
  max-width: 600px;
  margin: 0 auto;
}

/* ---- FILTER BAR ---- */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--clr-text-secondary);
  background: var(--clr-surface);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.filter-btn:hover {
  color: var(--clr-primary);
  background: rgba(108,60,225,0.06);
}

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

/* ---- PORTFOLIO GRID ---- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.portfolio-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--clr-border-light);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

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

.portfolio-card__image {
  height: 220px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--clr-text-tertiary);
}

.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 15, 26, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

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

.portfolio-card__overlay-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--clr-white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text);
  font-size: 1rem;
  transform: scale(0.8);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.portfolio-card:hover .portfolio-card__overlay-btn {
  transform: scale(1);
}

.portfolio-card__content {
  padding: 1.75rem;
}

.portfolio-card__tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.portfolio-card__tag {
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  color: var(--clr-primary);
  background: rgba(108,60,225,0.06);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.portfolio-card__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-bold);
  margin-bottom: 0.5rem;
}

.portfolio-card__desc {
  font-size: var(--fs-small);
  color: var(--clr-text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: 1.25rem;
}

.portfolio-card__results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--clr-border-light);
}

.portfolio-result__value {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: var(--fw-bold);
  color: var(--clr-primary);
}

.portfolio-result__label {
  font-size: 0.625rem;
  color: var(--clr-text-tertiary);
  margin-top: 0.125rem;
}

/* ---- PROJECT MODAL ---- */
.project-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

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

.project-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 15, 26, 0.6);
  backdrop-filter: blur(8px);
}

.project-modal__content {
  position: relative;
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  max-width: 800px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 3rem;
  box-shadow: var(--shadow-2xl);
  transform: translateY(20px) scale(0.97);
  transition: transform var(--duration-normal) var(--ease-out);
}

.project-modal.open .project-modal__content {
  transform: translateY(0) scale(1);
}

.project-modal__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--clr-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast);
  font-size: 1rem;
  color: var(--clr-text-secondary);
}

.project-modal__close:hover {
  background: var(--clr-text);
  color: white;
}

.project-modal__category {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--clr-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.project-modal__title {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-lg);
}

.project-modal__image {
  width: 100%;
  height: 300px;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--clr-text-tertiary);
}

.project-modal__section {
  margin-bottom: var(--space-2xl);
}

.project-modal__section-title {
  font-size: var(--fs-h5);
  font-weight: var(--fw-bold);
  margin-bottom: 0.75rem;
}

.project-modal__text {
  color: var(--clr-text-secondary);
  line-height: var(--lh-relaxed);
}

.project-modal__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding: var(--space-2xl);
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  text-align: center;
}

.modal-metric__value {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-extrabold);
}

.modal-metric__label {
  font-size: var(--fs-xs);
  color: var(--clr-text-tertiary);
  margin-top: 0.25rem;
}

/* ---- SUCCESS METRICS ---- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.metric-card {
  text-align: center;
  padding: var(--space-2xl);
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--clr-border-light);
  transition: all var(--duration-normal) var(--ease-out);
}

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

.metric-card__value {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: var(--fw-extrabold);
  margin-bottom: 0.5rem;
}

.metric-card__label {
  font-size: var(--fs-small);
  color: var(--clr-text-secondary);
}

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

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .portfolio-hero {
    min-height: auto;
    padding: 6.5rem 0 3rem;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-filters {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
  }

  .project-modal__content {
    padding: 1.75rem 1.25rem;
  }

  .project-modal__metrics {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .filter-bar {
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .portfolio-hero {
    padding: 5.5rem 0 2.5rem;
  }

  .filter-btn {
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
  }

  .project-modal__content {
    padding: 1.25rem 1rem;
  }
}