/* ── HERO ───────────────────────────────────── */
.c2-hero {
  padding: calc(var(--nav-h) + 60px) 24px 48px;
  text-align: center;
  background: #fff;
}
.c2-hero__title {
  font-size: 56px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
}
.c2-hero__sub {
  font-size: 18px;
  font-weight: 700;
  color: var(--orange);
  margin: 0;
}

/* ── ABOUT ──────────────────────────────────── */
.c2-about {
  background: #f5f5f7;
  padding: 80px 0;
}
.c2-about__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: flex-start;
  gap: 80px;
}
.c2-about__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.c2-about__heading {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}
.c2-about__text p {
  font-size: 15px;
  font-weight: 500;
  color: #333;
  line-height: 1.7;
  margin: 0;
}
.c2-about__bars {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}
.c2-about__bars span {
  display: block;
  width: 60px;
  height: 4px;
  border-radius: 2px;
}
.c2-about__img {
  flex: 0 0 320px;
}
.c2-about__img img {
  width: 320px;
  height: 320px;
  object-fit: cover;
  border-radius: 12px;
  display: block;
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
}

/* ── PROGRAM ────────────────────────────────── */
.c2-program {
  background: #fff;
  padding: 100px 0;
}
.c2-program__heading {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  margin: 0 0 64px;
  color: var(--text);
}
.c2-program__list {
  list-style: none;
  max-width: 560px;
  margin: 0 auto;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.c2-program__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
}
.c2-program__authors {
  font-size: 11px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .04em;
}
.c2-program__title {
  font-size: 28px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1.2;
}
.c2-program__desc {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
}

/* ── GALLERY ────────────────────────────────── */
.c2-gallery {
  background: #fff;
  padding: 40px 0 60px;
}
.c2-gallery__track-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.c2-gallery__track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: 16px 40px;
  scrollbar-width: none;
}
.c2-gallery__track::-webkit-scrollbar { display: none; }
.c2-gallery__item {
  flex: 0 0 calc(25% - 12px);
  scroll-snap-align: start;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  background: #f0f0f0;
  transition: transform .2s, box-shadow .2s;
}
.c2-gallery__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.15);
}
.c2-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.c2-gallery__arrow {
  position: absolute;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid #e0e0e0;
  box-shadow: 0 2px 10px rgba(0,0,0,.1);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: box-shadow .2s;
}
.c2-gallery__arrow:hover { box-shadow: 0 4px 16px rgba(0,0,0,.15); }
.c2-gallery__arrow:disabled { opacity: .3; cursor: default; }
.c2-gallery__arrow--prev { left: 4px; }
.c2-gallery__arrow--next { right: 4px; }

.c2-gallery__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}
.c2-gallery__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ddd;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background .2s, transform .2s;
}
.c2-gallery__dot--active {
  background: var(--orange);
  transform: scale(1.25);
}

/* ── LIGHTBOX ───────────────────────────────── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 300;
  align-items: center;
  justify-content: center;
}
.lightbox.open {
  display: flex;
}
.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.88);
  backdrop-filter: blur(6px);
}
.lightbox__img {
  position: relative;
  z-index: 1;
  max-width: 88vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 16px 60px rgba(0,0,0,.5);
  display: block;
}
.lightbox__close {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}
.lightbox__close:hover { background: rgba(255,255,255,.28); }
.lightbox__nav {
  position: absolute;
  z-index: 2;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}
.lightbox__nav:hover { background: rgba(255,255,255,.28); }
.lightbox__nav:disabled { opacity: .2; cursor: default; }
.lightbox__nav--prev { left: 20px; }
.lightbox__nav--next { right: 20px; }

/* ── RESPONSIVE ─────────────────────────────── */
@media (max-width: 768px) {
  .c2-hero__title { font-size: 40px; }
  .c2-about__inner { flex-direction: column; gap: 40px; }
  .c2-about__img { flex: none; }
  .c2-about__img img { width: 100%; height: 260px; }
  .c2-gallery__item { flex: 0 0 calc(50% - 8px); }
}