/* ============================================
   Project Subpage Styles (DS & Design pages)
   ============================================ */

/* --- Page Header --- */
.page-header {
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 3rem;
  position: relative;
}

.page-header--dark {
  background: #000;
  color: #fff;
}

.page-header--light {
  background: #fff;
  color: #000;
}

.page-header-content {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.page-header .back-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: inline-block;
  margin-bottom: 2rem;
  transition: opacity var(--transition-base);
}

.page-header .back-link:hover {
  opacity: 0.6;
}

.page-title {
  font-family: var(--font-serif-display);
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.page-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 1.2vw, 1rem);
  margin-top: 1rem;
  opacity: 0.6;
}

/* --- Projects Grid --- */
.projects-section {
  padding: 4rem 2rem 6rem;
}

.projects-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.4s var(--ease-out);
  cursor: pointer;
  display: block;
}

.project-card:hover {
  transform: translateY(-6px);
}

.project-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.project-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.project-thumb-placeholder--ds {
  background: linear-gradient(135deg, #0d0d0d, #1a1a2e);
}

.project-thumb-placeholder--design {
  background: linear-gradient(135deg, #f0ece2, #ddd6c8);
  color: #666;
}

.project-info {
  padding: 1.25rem 1.5rem 1.5rem;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  color: var(--fg);
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Project Meta Tags --- */
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.project-meta-item {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(232, 98, 43, 0.4);
  border-radius: 2rem;
  background: rgba(232, 98, 43, 0.15);
  color: #fff;
}

/* --- Thumb Icon --- */
.thumb-icon {
  font-size: 2.5rem;
  filter: grayscale(0.3);
}

/* --- Spotify accent --- */
.project-thumb-placeholder--spotify {
  background: linear-gradient(135deg, #0d0d0d, #1a2e1a);
}

/* --- Stacked Full-Width Cards (DS page) --- */
.projects-grid--stacked {
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.project-card--wide {
  display: grid;
  grid-template-columns: 340px 1fr;
  min-height: 220px;
}

.project-card--wide .project-thumb {
  aspect-ratio: unset;
  height: 100%;
}

.project-card--wide .project-thumb-placeholder {
  height: 100%;
  min-height: 220px;
}

.project-card--wide .thumb-icon {
  font-size: 3rem;
}

.project-card--wide .project-info {
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-card--wide .project-title {
  font-size: 1.5rem;
}

.project-card--wide .project-desc {
  font-size: 0.95rem;
  max-width: 600px;
}

.project-highlights {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.project-highlight {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.55);
  padding-left: 1rem;
  position: relative;
}

.project-highlight::before {
  content: '→';
  position: absolute;
  left: 0;
  color: rgba(255, 255, 255, 0.3);
}

/* ============================================
   Postcard Grid — Full-width DS project cards
   ============================================ */

.postcard-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.postcard {
  background: var(--card-bg);
  border-radius: 0;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.postcard:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

/* Thumbnail — laptop screen aspect ratio */
.postcard-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.postcard-thumb-bg {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.postcard-thumb-bg--context {
  background: linear-gradient(135deg, #0a1628 0%, #1a3a5c 40%, #2e5a3a 100%);
}

.postcard-thumb-bg--bioxplore {
  background: linear-gradient(135deg, #0a1628 0%, #1a2e4a 40%, #3a1a5c 100%);
}

.postcard-thumb-bg--cancer {
  background: linear-gradient(135deg, #0a1628 0%, #2a1a3e 40%, #4a1a2e 100%);
}

.postcard-thumb-bg--spotify {
  background: linear-gradient(135deg, #0d0d0d 0%, #1a2e1a 40%, #1db954 100%);
}

.postcard-thumb-icon {
  font-size: 3.5rem;
  filter: grayscale(0.2);
  opacity: 0.85;
  transition: transform 0.4s var(--ease-out), opacity 0.4s ease;
}

.postcard:hover .postcard-thumb-icon {
  transform: scale(1.15);
  opacity: 1;
}

/* Logo thumbnail (e.g. Spotify) */
.postcard-thumb-logo {
  max-width: 60%;
  max-height: 65%;
  object-fit: contain;
  opacity: 0.85;
  transition: transform 0.4s var(--ease-out), opacity 0.4s ease;
}

.postcard:hover .postcard-thumb-logo {
  transform: scale(1.08);
  opacity: 1;
}

/* Full-bleed thumbnail image (e.g. graph viz) */
.postcard-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #0a0a0a;
  transition: transform 0.4s var(--ease-out);
}

.postcard:hover .postcard-thumb-img {
  transform: scale(1.04);
}

/* Body */
.postcard-body {
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.6rem;
}

.postcard-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.postcard-title {
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--fg);
  margin: 0;
}

.postcard-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.35);
  white-space: nowrap;
  flex-shrink: 0;
}

.postcard-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Tech stack tags */
.postcard-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

.postcard-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border-radius: 2rem;
  border: 1px solid rgba(232, 98, 43, 0.35);
  background: rgba(232, 98, 43, 0.1);
  color: rgba(255, 255, 255, 0.75);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.postcard:hover .postcard-tag {
  border-color: rgba(232, 98, 43, 0.55);
  background: rgba(232, 98, 43, 0.18);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .page-header {
    padding: 2rem 1.5rem;
    min-height: 40vh;
  }

  .projects-section {
    padding: 3rem 1.5rem 4rem;
  }

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

  .project-card--wide {
    grid-template-columns: 1fr;
  }

  .project-card--wide .project-thumb-placeholder {
    min-height: 160px;
  }

  .postcard-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

@media (max-width: 480px) {
  .postcard-body {
    padding: 1rem 1.25rem 1.25rem;
  }

  .postcard-header {
    flex-direction: column;
    gap: 0.25rem;
  }
}