/* -------------------------
   Projects Page
   Page-specific styles only.
   Shared styles live in styles.css.
   ------------------------- */

/* Projects hero + intro: shared rules in styles.css */

/* -------------------------
   Chips (Filter)
   ------------------------- */

.chips {
  display: flex;
  column-gap: var(--space-1);
}

.chips__btn {
  padding: 8px 20px;
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-muted);
  background-color: var(--color-surface);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  letter-spacing: var(--letter-spacing-body);
  transition:
    color var(--duration-fast) var(--ease-out-expo),
    border-color var(--duration-fast) var(--ease-out-expo);
}

.chips__btn:hover {
  color: var(--color-text);
}

.chips__btn--active {
  color: var(--color-text);
  border-color: var(--color-text);
}

@media (min-width: 1024px) {
  .chips__btn {
    padding: 12px 28px;
    font-size: var(--text-lg);
  }
}

/* -------------------------
   Projects Section
   ------------------------- */

.projects {
  padding-block: var(--space-7) var(--space-9);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  column-gap: var(--space-2);
}

.chips {
  grid-column: 1 / -1;
}

.projects__list {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr;
  column-gap: var(--space-2);
  margin-top: var(--space-6);
}

@media (min-width: 768px) {
  .projects__grid {
    grid-template-columns: repeat(12, 1fr);
    column-gap: var(--space-2);
  }

  .projects__list {
    grid-template-columns: repeat(2, 1fr);
    column-gap: var(--space-2);
    margin-top: var(--space-7);
  }
}

@media (min-width: 1024px) {
  .projects {
    padding-block: var(--space-9) var(--space-10);
  }

  .projects__grid {
    column-gap: var(--space-4);
  }

  .projects__list {
    column-gap: var(--space-4);
    margin-top: var(--space-8);
  }
}

/* -------------------------
   Project Card
   ------------------------- */

.project-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--color-text);
  margin-top: var(--space-7);
}

.project-card:first-child {
  margin-top: 0;
}

/* On tablet+, first two cards have no top margin (first row) */
@media (min-width: 768px) {
  .project-card:nth-child(2) {
    margin-top: 0;
  }

  /* When featured card present: 2nd and 3rd cards start the paired row */
  .project-card--featured + .project-card {
    margin-top: var(--space-7);
  }

  .project-card--featured + .project-card + .project-card {
    margin-top: var(--space-7);
  }
}

/* Featured card (odd count — first card spans full width) */
@media (min-width: 768px) {
  .project-card--featured {
    grid-column: 1 / -1;
  }

  .project-card--featured .project-card__image {
    aspect-ratio: 21 / 9;
  }
}

@media (min-width: 1024px) {
  .project-card--featured + .project-card {
    margin-top: var(--space-8);
  }

  .project-card--featured + .project-card + .project-card {
    margin-top: var(--space-8);
  }
}

.project-card__media {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.project-card__image {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: grayscale(15%);
  transition:
    filter var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

.project-card:hover .project-card__image {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.project-card__body {
  margin-top: var(--space-2);
}

/* Title with hover underline (same pattern as .link-btn) */
.project-card__title {
  position: relative;
  display: inline;
  font-size: 1.875rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-body);
}

.project-card__title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-text);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.project-card:hover .project-card__title::after {
  transform: scaleX(1);
}

.project-card__desc {
  margin-top: 4px;
  font-size: var(--text-lg);
  color: var(--color-muted);
  letter-spacing: var(--letter-spacing-body);
  line-height: var(--line-height-body);
}

/* Tags as badges */
.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  column-gap: 12px;
  row-gap: 12px;
  margin-top: 16px;
}

.project-card__tag {
  display: inline-flex;
  padding: 4px 12px;
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-muted);
  background-color: var(--color-surface);
  border-radius: 20px;
  letter-spacing: var(--letter-spacing-body);
  line-height: 1.5;
}

@media (min-width: 1024px) {
  .project-card__title {
    font-size: 2.5rem;
  }

  .project-card__desc {
    font-size: var(--text-xl);
  }
}

/* -------------------------
   Card hide/show transitions
   ------------------------- */

.project-card--hidden {
  display: none;
}

.project-card--row-start {
  margin-top: 0 !important;
}