/* ==========================================================================
   projects.css — Styles spécifiques à projects.html
   ========================================================================== */

/* --- Page Hero (banner compact) ------------------------------------------ */
.page-hero {
  background: linear-gradient(160deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  padding-block: 64px 48px;
}

.page-hero__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background-color: rgba(46, 125, 181, 0.15);
  border: 1px solid rgba(46, 125, 181, 0.3);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.page-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.page-hero__desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 58ch;
}

/* --- Projects nav tabs ---------------------------------------------------- */
.projects-nav {
  background-color: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-h);
  z-index: 800;
}

.projects-nav__list {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.projects-nav__list::-webkit-scrollbar {
  display: none;
}

.projects-nav__item {
  flex-shrink: 0;
}

.projects-nav__link {
  display: block;
  padding: 14px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 3px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
  text-decoration: none;
}

.projects-nav__link:hover {
  color: var(--color-accent);
}

.projects-nav__link.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* --- Project Section ------------------------------------------------------ */
.project-section {
  padding-block: 72px;
  border-bottom: 1px solid var(--color-border);
}

.project-section:last-of-type {
  border-bottom: none;
}

.project-section:nth-child(even) {
  background-color: var(--color-bg-white);
}

.project-section__header {
  margin-bottom: 40px;
}

.project-section__number {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.project-section__title {
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.project-section__subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 64ch;
}

/* --- Project meta grid ---------------------------------------------------- */
.project-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
  padding: 24px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.project-meta__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.project-meta__key {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.project-meta__value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

/* --- Project body layout -------------------------------------------------- */
.project-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
  margin-bottom: 40px;
}

.project-body__main h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 12px;
  margin-top: 24px;
}

.project-body__main h4:first-child {
  margin-top: 0;
}

.project-body__main ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-body__main ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.project-body__main ul li::before {
  content: '';
  display: block;
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  margin-top: 7px;
}

/* Sidebar equipment card */
.project-equipment {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.project-equipment__header {
  padding: 16px 20px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.project-equipment__list {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.project-equipment__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text);
}

.project-equipment__item::before {
  content: '';
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* --- Photo gallery -------------------------------------------------------- */
.gallery {
  margin-top: 8px;
}

.gallery__title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.gallery__item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: pointer;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.gallery__item:hover img {
  transform: scale(1.05);
}

.gallery__item-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(15, 37, 64, 0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.25s ease;
}

.gallery__item:hover .gallery__item-overlay {
  background-color: rgba(15, 37, 64, 0.35);
}

.gallery__item-overlay svg {
  color: #ffffff;
  opacity: 0;
  transition: opacity 0.25s ease;
  width: 28px;
  height: 28px;
}

.gallery__item:hover .gallery__item-overlay svg {
  opacity: 1;
}

/* --- Lightbox ------------------------------------------------------------- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: rgba(0, 0, 0, 0.92);
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.lightbox.is-open {
  display: flex;
}

.lightbox__inner {
  position: relative;
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  display: block;
}

.lightbox__caption {
  margin-top: 12px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
}

.lightbox__close {
  position: absolute;
  top: -44px;
  right: 0;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  transition: background-color 0.2s ease;
}

.lightbox__close:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.lightbox__close svg {
  width: 18px;
  height: 18px;
}

.lightbox__prev,
.lightbox__next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  transition: background-color 0.2s ease;
  z-index: 10001;
}

.lightbox__prev { left: 16px; }
.lightbox__next { right: 16px; }

.lightbox__prev:hover,
.lightbox__next:hover {
  background-color: rgba(255, 255, 255, 0.18);
}

.lightbox__prev svg,
.lightbox__next svg {
  width: 20px;
  height: 20px;
}

.lightbox__counter {
  position: absolute;
  bottom: -36px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
}

/* --- Responsive Projects -------------------------------------------------- */
@media (max-width: 900px) {
  .project-body {
    grid-template-columns: 1fr;
  }

  .project-equipment {
    order: -1;
  }

  .gallery__grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
}

@media (max-width: 640px) {
  .projects-nav__link {
    padding: 12px 14px;
    font-size: 0.8rem;
  }

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

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

  .lightbox__prev,
  .lightbox__next {
    width: 36px;
    height: 36px;
  }
}