/* ============================================================
   ВАРИАНТ 3 — «Иммерсивная витрина»
   Прелоадер, горизонтальный скролл, 3D-tilt, кастомный курсор
   ============================================================ */

/* ---------- Прелоадер ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
.preloader--done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader__logo {
  font-size: clamp(34px, 6vw, 64px); font-weight: 900; letter-spacing: 0.1em;
  display: flex; gap: 0.25em;
}
.preloader__logo span {
  background: var(--brand-gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.preloader__word { display: inline-block; overflow: hidden; }
.preloader__word span {
  display: inline-block; transform: translateY(110%);
  animation: preWord 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.preloader__word:nth-child(2) span { animation-delay: 0.18s; }
@keyframes preWord { to { transform: translateY(0); } }
.preloader__bar {
  width: 220px; height: 2px; background: var(--line);
  overflow: hidden; border-radius: 2px;
}
.preloader__bar i {
  display: block; height: 100%; width: 0;
  background: var(--brand-gradient);
}

/* ---------- Кастомный курсор ---------- */
@media (hover: hover) and (pointer: fine) {
  body.v3, body.v3 a, body.v3 button { cursor: none; }
}
.cursor-dot, cursor-ring { display: block; }
.cursor-dot {
  position: fixed; z-index: 999; width: 6px; height: 6px; border-radius: 50%;
  background: #fff; pointer-events: none;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
}
.cursor-ring {
  position: fixed; z-index: 998; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.55); pointer-events: none;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; justify-content: center;
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1), height 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              background 0.35s ease, border-color 0.35s ease;
}
.cursor-ring__label {
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: #0a0a0a; opacity: 0; transition: opacity 0.25s ease; white-space: nowrap;
}
.cursor-ring--card {
  width: 92px; height: 92px;
  background: rgba(255,115,0,0.92); border-color: transparent;
  backdrop-filter: blur(2px);
}
.cursor-ring--card .cursor-ring__label { opacity: 1; }
.cursor-ring--btn { width: 64px; height: 64px; border-color: var(--brand-orange); background: rgba(255,115,0,0.12); }
.cursor--hidden { opacity: 0; }
@media (hover: none) { .cursor-dot, .cursor-ring { display: none; } }

/* ---------- 3D-наклон карточек ---------- */
.project-card { transform-style: preserve-3d; will-change: transform; }
.project-card__img { will-change: transform; }
.project-card--tilt { transition: box-shadow 0.4s ease, border-color 0.4s ease; }
.project-card--tilt:hover { border-color: #3a3a3a; box-shadow: 0 26px 60px rgba(0,0,0,0.6); }

/* ---------- Горизонтальная прокрутка проектов (GSAP) ---------- */
@media (min-width: 1025px) {
  .projects-hscroll { overflow: hidden; padding: 0; }
  .projects-hscroll .container { max-width: none; padding: 0; }
  .projects-hscroll .section__title { padding: 0 40px; max-width: 1400px; margin-left: auto; margin-right: auto; }
  .projects-hscroll .projects-grid {
    display: flex; gap: 24px; width: max-content;
    padding: 0 40px;
    will-change: transform;
  }
  .projects-hscroll .project-card { width: 380px; flex-shrink: 0; }
  .projects-hscroll .section__more { display: none; }
  /* Секция закрепляется — убираем reveal, чтобы не было конфликтов */
  .projects-hscroll.reveal { opacity: 1; transform: none; }
}

/* ---------- Hero: scroll-driven (GSAP управляет стилями) ---------- */
.hero { will-change: transform; }
.hero__slogan .hw { display: inline-block; will-change: transform, opacity; }

/* ---------- Магнитные кнопки ---------- */
.btn--magnet { will-change: transform; }

/* ---------- Отзывы: кроссфейд ---------- */
.reviews-swiper .swiper-slide { transition: opacity 0.9s ease; }

/* ---------- Материалы: чипы появляются с вращением ---------- */
.material-chip {
  opacity: 0; transform: translateY(26px) rotate(-2deg);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.35s ease;
}
.reveal--visible .material-chip { opacity: 1; transform: translateY(0) rotate(0); }
.reveal--visible .material-chip:nth-child(2) { transition-delay: 0.07s; }
.reveal--visible .material-chip:nth-child(3) { transition-delay: 0.14s; }
.reveal--visible .material-chip:nth-child(4) { transition-delay: 0.21s; }
.reveal--visible .material-chip:nth-child(5) { transition-delay: 0.28s; }
.reveal--visible .material-chip:nth-child(6) { transition-delay: 0.35s; }
.reveal--visible .material-chip:nth-child(7) { transition-delay: 0.42s; }

/* ---------- Преимущества: глубина при наведении ---------- */
.feature { transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.45s ease, box-shadow 0.45s ease; }
.feature:hover { transform: translateY(-6px) scale(1.02); box-shadow: 0 18px 40px rgba(0,0,0,0.5); }

/* ---------- Появление секций ---------- */
.reveal { transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.22, 1, 0.36, 1); }

/* Стрелка скролла: прячем после прелоадера плавно */
.hero__scroll { transition: opacity 0.6s ease; }

@media (prefers-reduced-motion: reduce) {
  .preloader { display: none; }
  .material-chip { opacity: 1; transform: none; transition: border-color 0.35s ease; }
}