/* ═══════════════════════════════════════════════════════════════
   PROJECT PAGE — Detail Layout Styles
   ═══════════════════════════════════════════════════════════════ */

/* ── Project Hero ── */
.project-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
}

.project-hero__back {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: var(--space-2xl);
  transition: color var(--duration-fast) var(--ease),
              gap var(--duration) var(--ease);
}

.project-hero__back:hover {
  color: var(--text-accent);
  gap: var(--space-sm);
}

.project-hero__back svg {
  width: 14px;
  height: 14px;
  transition: transform var(--duration) var(--ease);
}

.project-hero__back:hover svg {
  transform: translateX(-3px);
}

.project-hero__tag {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--text-accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.project-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  max-width: 720px;
}

.project-hero__subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

/* ── Project Banner ── */
.project-banner {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  margin-bottom: var(--space-4xl);
}

.project-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Project Meta Grid ── */
.project-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-4xl);
}

.project-meta__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.project-meta__label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

.project-meta__value {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--text-primary);
}

.project-meta__value a {
  color: var(--text-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: opacity var(--duration-fast) var(--ease);
}

.project-meta__value a:hover {
  opacity: 0.7;
}

.project-meta__value a svg {
  width: 14px;
  height: 14px;
}

/* ── Project Content ── */
.project-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-4xl);
  margin-bottom: var(--space-4xl);
}

.project-content__sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-2xl));
  align-self: start;
}

.project-content__sidebar h3 {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.project-content__main p {
  font-size: var(--text-md);
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-lg);
}

.project-content__main p:last-child {
  margin-bottom: 0;
}

/* ── Feature List ── */
.feature-list {
  margin-top: var(--space-2xl);
}

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
}

.feature-list__item:last-child {
  border-bottom: none;
}

.feature-list__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--text-accent);
}

.feature-list__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-list__text strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ── Tech Stack ── */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-xl);
  align-items: flex-start;
  align-content: flex-start;
}

.tech-tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  letter-spacing: 0.02em;
  font-weight: 500;
  transition: border-color var(--duration-fast) var(--ease),
              color var(--duration-fast) var(--ease);
}

.tech-tag:hover {
  border-color: var(--accent);
  color: var(--text-accent);
}

/* ── Image Gallery ── */
.project-gallery {
  margin-bottom: var(--space-4xl);
}

.project-gallery__header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.project-gallery__header h3 {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--text-primary);
}

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

.gallery-item {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: border-color var(--duration) var(--ease),
              transform var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}

.gallery-item:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
}

.gallery-item img {
  width: 100%;
  /* aspect-ratio: 16 / 10; */
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.gallery-item:hover img {
  transform: scale(1.03);
}

.gallery-item--wide {
  grid-column: span 2;
}

.gallery-item--wide img {
  aspect-ratio: 21 / 9;
}

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--duration) var(--ease);
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 6px;
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.5);
}

.lightbox__close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: var(--text-xl);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease);
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* ── Project Navigation ── */
.project-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border-color);
}

.project-nav__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: border-color var(--duration) var(--ease),
              transform var(--duration) var(--ease);
}

.project-nav__item:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.project-nav__item--next {
  text-align: right;
}

.project-nav__label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

.project-nav__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--text-primary);
  transition: color var(--duration-fast) var(--ease);
}

.project-nav__item:hover .project-nav__title {
  color: var(--text-accent);
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — PROJECT PAGE
   Premium layouts for every screen size
   ═══════════════════════════════════════════════════ */

/* ── Tablet ── */
@media (max-width: 1024px) {
  .project-content {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }

  .project-content__sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-2xl);
    align-items: start;
  }

  .project-content__sidebar h3 {
    grid-column: 1 / -1;
    margin-bottom: 0;
  }

  .tech-stack {
    margin-top: 0;
  }

  .feature-list {
    margin-top: 0;
  }

  .project-meta {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    padding: var(--space-2xl) 0;
  }

  .project-hero {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-2xl);
  }

  .gallery-grid {
    gap: var(--space-md);
  }

  .project-nav {
    padding: var(--space-2xl) 0;
  }
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .project-hero {
    padding-top: calc(var(--nav-height) + var(--space-2xl));
    padding-bottom: var(--space-xl);
  }

  .project-hero__back {
    font-size: var(--text-xs);
    margin-bottom: var(--space-lg);
  }

  .project-hero__tag {
    font-size: 0.65rem;
    letter-spacing: 0.14em;
    margin-bottom: var(--space-md);
  }

  .project-hero__title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-md);
  }

  .project-hero__subtitle {
    font-size: var(--text-md);
    line-height: 1.7;
  }

  /* Banner */
  .project-banner {
    aspect-ratio: 16 / 10;
    border-radius: 8px;
    margin-bottom: var(--space-2xl);
  }

  /* Meta — elegant 2x2 grid */
  .project-meta {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl) var(--space-lg);
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-3xl);
  }

  .project-meta__item {
    padding: 0;
    border: none !important;
  }

  .project-meta__label {
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-xs);
  }

  .project-meta__value {
    font-size: var(--text-md);
  }

  /* Content */
  .project-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
  }

  .project-content__sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
  }

  .project-content__sidebar h3 {
    font-size: var(--text-2xl);
    margin-bottom: 0;
  }

  .project-content__main p {
    font-size: var(--text-base);
    line-height: 1.8;
    margin-bottom: var(--space-md);
  }

  /* Tech stack */
  .tech-stack {
    margin-top: 0;
    gap: 8px;
  }

  .tech-tag {
    padding: 6px 14px;
    font-size: var(--text-xs);
  }

  /* Features */
  .feature-list {
    margin-top: 0;
  }

  .feature-list__item {
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-light);
  }

  .feature-list__icon {
    width: 18px;
    height: 18px;
    margin-top: 4px;
  }

  .feature-list__text {
    font-size: var(--text-sm);
    line-height: 1.7;
  }

  /* Gallery */
  .project-gallery {
    margin-bottom: var(--space-3xl);
  }

  .project-gallery__header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
  }

  .project-gallery__header h3 {
    font-size: var(--text-2xl);
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .gallery-item {
    border-radius: 8px;
  }

  .gallery-item--wide {
    grid-column: span 1;
  }

  .gallery-item--wide img {
    aspect-ratio: 16 / 10;
  }

  .gallery-item img {
    /* aspect-ratio: 16 / 10; */
  }

  .gallery-item:hover {
    transform: none;
    box-shadow: none;
  }

  /* Project Navigation */
  .project-nav {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-2xl) 0;
  }

  .project-nav__item {
    padding: var(--space-xl);
    border-radius: 8px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .project-nav__item--next {
    text-align: left;
    flex-direction: row-reverse;
  }

  .project-nav__label {
    font-size: 0.65rem;
  }

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

  .project-nav__item:hover {
    transform: none;
    border-color: var(--border-light);
  }

  /* Lightbox */
  .lightbox img {
    max-width: 95vw;
    max-height: 80vh;
    border-radius: 4px;
  }

  .lightbox__close {
    top: var(--space-md);
    right: var(--space-md);
    width: 36px;
    height: 36px;
    font-size: var(--text-base);
  }
}

/* ── Small Mobile ── */
@media (max-width: 480px) {
  .project-hero__title {

  .project-meta__value {
    font-size: var(--text-sm);
  }

  .project-content__sidebar h3 {
    font-size: var(--text-lg);
  }

  .project-content__main p {
    font-size: var(--text-sm);
    line-height: 1.8;
  }

  .project-gallery__header h3 {
    font-size: var(--text-lg);
  }

  .project-nav__item {
    padding: var(--space-md);
  }

  .project-nav__title {
    font-size: var(--text-base);
  }
}