/* ============================================
   Projects pages — List & Detail
   ============================================ */

/* ---- Page Hero (shared) ---- */
.page-hero {
  position: relative;
  height: 50vh;
  min-height: 360px;
  max-height: 480px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  margin-top: var(--header-h);
}

.page-hero-bg {
  position: absolute;
  inset: 0;
}

.page-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(26, 26, 26, 0.15) 0%,
    rgba(26, 26, 26, 0.6) 100%
  );
}

.page-hero-content {
  position: relative;
  z-index: 2;
  padding: 0 clamp(32px, 8vw, 120px);
  padding-bottom: clamp(40px, 6vh, 72px);
}

.page-hero-title {
  font-family: var(--ff-serif);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 900;
  color: var(--c-white);
  line-height: 1.3;
}

/* ---- Filter Bar ---- */
.projects-page {
  padding: clamp(60px, 8vw, 100px) 0 clamp(80px, 10vw, 140px);
}

.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--c-border);
}

.filter-btn {
  background: none;
  border: 1px solid transparent;
  font-family: var(--ff-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-gray);
  padding: 8px 20px;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 0.03em;
}

.filter-btn:hover {
  color: var(--c-charcoal);
}

.filter-btn.is-active {
  color: var(--c-charcoal);
  border-color: var(--c-charcoal);
}

/* ---- Project List Grid ---- */
.projects-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---- Project Card ---- */
.pj-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.4s;
}

.pj-card.is-hidden {
  display: none;
}

.pj-card-img {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--c-bg-warm);
}

.pj-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.pj-card:hover .pj-card-img img {
  transform: scale(1.04);
}

.pj-card-body {
  padding: 20px 0;
}

.pj-card-cat {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  display: block;
  margin-bottom: 8px;
}

.pj-card-name {
  font-family: var(--ff-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-black);
  margin-bottom: 4px;
  line-height: 1.5;
}

.pj-card-meta {
  font-size: 0.75rem;
  color: var(--c-gray-light);
}

/* ---- Detail Page ---- */
.detail-hero {
  margin-top: var(--header-h);
  padding: clamp(40px, 6vw, 80px) 0 0;
}

.detail-hero .section-container {
  max-width: 960px;
}

.detail-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--c-gray-light);
  margin-bottom: 32px;
}

.detail-breadcrumb a {
  color: var(--c-gray);
  transition: color 0.3s;
}

.detail-breadcrumb a:hover { color: var(--c-accent); }

.detail-breadcrumb span { color: var(--c-gray-light); }

.detail-title-area {
  margin-bottom: 40px;
}

.detail-cat {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  margin-bottom: 12px;
  display: block;
}

.detail-title {
  font-family: var(--ff-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--c-black);
  line-height: 1.4;
  margin-bottom: 12px;
}

.detail-meta {
  font-size: 0.875rem;
  color: var(--c-gray);
}

/* Main image */
.detail-main-img {
  width: 100%;
  overflow: hidden;
  margin-bottom: clamp(48px, 6vw, 80px);
}

.detail-main-img img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Detail body */
.detail-body {
  padding-bottom: clamp(80px, 10vw, 140px);
}

.detail-body .section-container {
  max-width: 960px;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: clamp(40px, 5vw, 80px);
  align-items: start;
}

.detail-text h2 {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-black);
  margin-bottom: 16px;
  margin-top: 48px;
}

.detail-text h2:first-child {
  margin-top: 0;
}

.detail-text p {
  font-size: 0.9375rem;
  line-height: 2;
  color: var(--c-gray);
  margin-bottom: 16px;
}

/* Photo gallery */
.detail-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 40px;
}

.detail-gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  cursor: pointer;
  transition: opacity 0.3s;
}

.detail-gallery img:hover {
  opacity: 0.85;
}

/* Sidebar spec table */
.detail-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}

.detail-spec {
  background: var(--c-white);
  padding: 32px;
  border: 1px solid var(--c-border);
}

.detail-spec-title {
  font-family: var(--ff-serif);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-black);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}

.detail-spec table {
  width: 100%;
}

.detail-spec th,
.detail-spec td {
  font-size: 0.8125rem;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-border);
  vertical-align: top;
  line-height: 1.6;
}

.detail-spec th {
  font-weight: 500;
  color: var(--c-gray);
  width: 80px;
  padding-right: 16px;
  white-space: nowrap;
}

.detail-spec td {
  color: var(--c-charcoal);
}

/* Nav between projects */
.detail-nav {
  border-top: 1px solid var(--c-border);
  padding: 40px 0;
}

.detail-nav .section-container {
  max-width: 960px;
}

.detail-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.detail-nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--c-gray);
  transition: color 0.3s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.detail-nav-link:hover { color: var(--c-charcoal); }

.detail-nav-link--list {
  font-weight: 500;
  color: var(--c-charcoal);
}

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

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

  .detail-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .page-hero {
    height: 40vh;
    min-height: 280px;
  }

  .projects-list {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .filter-bar {
    gap: 4px;
  }

  .filter-btn {
    font-size: 0.75rem;
    padding: 6px 14px;
  }

  .detail-gallery {
    grid-template-columns: 1fr 1fr;
  }
}