/* =====================================================================
   Slider component — shared by the hero, the work carousel and the
   project gallery. Pairs with assets/js/slider.js.
   ===================================================================== */

.slider { position: relative; }

.slider__viewport {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
}

.slider__track {
  display: flex;
  will-change: transform;
  transition: transform .55s cubic-bezier(.4, .05, .2, 1);
}

.slider__slide {
  flex: 0 0 100%;
  min-width: 100%;
}

/* Fade mode stacks the slides instead of sliding them. */
.slider[data-mode="fade"] .slider__track { display: block; transition: none; }
.slider[data-mode="fade"] .slider__slide {
  position: absolute; inset: 0; width: 100%;
  opacity: 0; visibility: hidden;
  transition: opacity .7s ease, visibility .7s;
}
.slider[data-mode="fade"] .slider__slide:first-child { position: relative; }
.slider[data-mode="fade"] .slider__slide.is-active { opacity: 1; visibility: visible; }

/* --- Arrows ---------------------------------------------------------- */
.slider__btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 3;
  width: 46px; height: 46px; padding: 0;
  display: grid; place-items: center;
  border-radius: 50%; cursor: pointer;
  background: rgba(255, 255, 255, .94);
  border: 1px solid var(--line);
  color: var(--brand-800);
  box-shadow: 0 4px 16px rgba(11, 46, 47, .18);
  transition: background .18s, transform .18s, color .18s, opacity .18s;
}
.slider__btn:hover { background: #fff; color: var(--brand-600); transform: translateY(-50%) scale(1.06); }
.slider__btn:active { transform: translateY(-50%) scale(.97); }
.slider__btn--prev { left: .85rem; }
.slider__btn--next { right: .85rem; }

/* Arrows sit outside the frame on the work carousel. */
.slider--outside .slider__btn--prev { left: -22px; }
.slider--outside .slider__btn--next { right: -22px; }
@media (max-width: 1240px) {
  .slider--outside .slider__btn--prev { left: .6rem; }
  .slider--outside .slider__btn--next { right: .6rem; }
}

/* --- Dots ------------------------------------------------------------ */
.slider__dots {
  display: flex; justify-content: center; gap: .45rem;
  margin-top: 1.1rem;
}
.slider__dot {
  width: 9px; height: 9px; padding: 0;
  border-radius: 999px; cursor: pointer;
  background: var(--line-strong); border: 0;
  transition: width .25s, background .25s;
}
.slider__dot:hover { background: var(--brand-500); }
.slider__dot.is-active { width: 26px; background: var(--brand-600); }

.slider__dots--onDark .slider__dot { background: rgba(255, 255, 255, .35); }
.slider__dots--onDark .slider__dot.is-active { background: var(--accent-500); }

/* --- Thumbnails ------------------------------------------------------ */
.slider__thumbs {
  display: grid; gap: .6rem; margin-top: .75rem;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
}
.slider__thumb {
  padding: 0; border: 2px solid transparent; border-radius: var(--radius-sm);
  overflow: hidden; cursor: pointer; background: none; line-height: 0;
  transition: border-color .18s, opacity .18s;
  opacity: .62;
}
.slider__thumb img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.slider__thumb:hover { opacity: 1; }
.slider__thumb.is-active { border-color: var(--brand-600); opacity: 1; }

/* --- Counter --------------------------------------------------------- */
.slider__count {
  position: absolute; right: .8rem; bottom: .8rem; z-index: 3;
  background: rgba(8, 32, 31, .76); color: #fff;
  font-size: .78rem; font-weight: 600;
  padding: .25rem .6rem; border-radius: 999px;
  backdrop-filter: blur(4px);
}

/* --- Hero slider ----------------------------------------------------- */
.hero-slider { position: relative; }
.hero-slider .slider__viewport {
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px rgba(4, 18, 17, .45);
  border: 1px solid rgba(255, 255, 255, .14);
}
.hero-slider figure { margin: 0; position: relative; }
.hero-slider img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block;
}
.hero-slider figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 2.5rem 1.25rem .95rem;
  font-size: .88rem; color: #fff;
  background: linear-gradient(to top, rgba(6, 26, 25, .85), transparent);
}

/* --- Gallery slider (project detail) --------------------------------- */
.gallery-slider .slider__viewport { border: 1px solid var(--line); background: var(--surface-cool); }
.gallery-slider figure { margin: 0; }
.gallery-slider img {
  width: 100%; aspect-ratio: 3 / 2; object-fit: cover; display: block;
}
.gallery-slider figcaption {
  padding: .8rem 1rem; font-size: .9rem; color: var(--ink-500);
  background: var(--surface); border-top: 1px solid var(--line);
}

/* --- Work carousel --------------------------------------------------- */
.work-slider .slider__viewport { overflow: hidden; border-radius: 0; padding: 4px; margin: -4px; }
.work-slider .slider__slide { padding-right: 1.75rem; }
@media (min-width: 700px)  { .work-slider .slider__slide { flex: 0 0 50%;    min-width: 50%; } }
@media (min-width: 1060px) { .work-slider .slider__slide { flex: 0 0 33.333%; min-width: 33.333%; } }

/* --- Lightbox -------------------------------------------------------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  display: none; place-items: center;
  background: rgba(4, 18, 17, .93);
  padding: 1.5rem;
}
.lightbox.is-open { display: grid; }
.lightbox img {
  max-width: min(1200px, 94vw); max-height: 88vh;
  object-fit: contain; border-radius: var(--radius-sm);
}
.lightbox__caption {
  color: rgba(255, 255, 255, .8); text-align: center;
  font-size: .9rem; margin-top: .9rem;
}
.lightbox__close {
  position: absolute; top: 1.1rem; right: 1.1rem;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .25);
  color: #fff; font-size: 1.4rem; line-height: 1;
}
.lightbox__close:hover { background: rgba(255, 255, 255, .24); }

@media (prefers-reduced-motion: reduce) {
  .slider__track { transition: none; }
  .slider[data-mode="fade"] .slider__slide { transition: none; }
}