/* ============================================================
   LUMÉRA — Портфолио, преимущества, отзывы
   ============================================================ */

/* ===== Портфолио ===== */
.gallery__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: clamp(150px, 18vw, 240px); grid-auto-flow: row dense;
  gap: clamp(.6rem, .4rem + 1vw, 1rem);
}
.gallery__item {
  position: relative; display: block; overflow: hidden;
  border-radius: var(--radius); border: 1px solid var(--noir-4);
}
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease); }
.gallery__item::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(13, 10, 7, .35), transparent 50%);
  opacity: 0; transition: opacity var(--dur) var(--ease);
}
.gallery__item:hover img { transform: scale(1.07); }
.gallery__item:hover::after { opacity: 1; }
.gallery__item--tall { grid-row: span 2; }
.gallery__item--wide { grid-column: span 2; }

@media (max-width: 720px) {
  .gallery__grid { grid-template-columns: repeat(2, 1fr); }
  .gallery__item--wide { grid-column: span 2; }
}

/* ===== Преимущества (светлая, нумерованные) ===== */
.features__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.2rem, .5rem + 2vw, 2.4rem); }
.feature { border-top: 1px solid var(--line-light); padding-top: 1.4rem; }
.feature__num { font-family: var(--font-display); font-size: 2.2rem; line-height: 1; color: var(--gold-deep); }
.feature__title { font-family: var(--font-body); font-weight: 600; font-size: 1.08rem; color: var(--ink); margin-top: 1rem; }
.feature__desc { margin-top: .55rem; font-size: .9rem; color: var(--muted-light); line-height: 1.55; }

@media (max-width: 860px) { .features__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .features__grid { grid-template-columns: 1fr; } }

/* ===== Отзывы (тёмная) ===== */
.testimonials { background: var(--noir-2); }
.slider { position: relative; max-width: 820px; margin-inline: auto; }
.slider__viewport { overflow: hidden; }
.slider__track { display: flex; transition: transform var(--dur-slow) var(--ease); }
.testimonial { flex: 0 0 100%; min-width: 0; padding: clamp(.5rem, 2vw, 2rem) clamp(.5rem, 3vw, 3rem); text-align: center; }
.testimonial__quote {
  position: relative; font-family: var(--font-display); font-style: italic;
  font-size: clamp(1.25rem, 1rem + 1.4vw, 1.9rem); line-height: 1.5; color: var(--cream);
}
.testimonial__quote::before { content: "“"; display: block; font-size: 4rem; line-height: .6; color: var(--gold); opacity: .55; margin-bottom: .6rem; }
.testimonial__author { margin-top: 1.6rem; font-family: var(--font-body); font-weight: 600; letter-spacing: .14em; text-transform: uppercase; font-size: .8rem; color: var(--gold-bright); }

.slider__controls { display: flex; align-items: center; justify-content: center; gap: 1.4rem; margin-top: 2rem; }
.slider__btn { width: 46px; height: 46px; display: grid; place-items: center; border-radius: var(--radius-pill); border: 1px solid var(--line); color: var(--gold); transition: border-color var(--dur-fast), color var(--dur-fast), background-color var(--dur-fast); }
.slider__btn:hover { border-color: var(--gold); color: var(--gold-bright); background: rgba(180, 159, 108, .1); }
.slider__dots { display: flex; align-items: center; gap: .55rem; }
.slider__dot { width: 8px; height: 8px; border-radius: var(--radius-pill); background: var(--noir-4); transition: width var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease); }
.slider__dot.is-active { width: 22px; background: var(--grad-gold); }