/* ============================================================
   Scroll Reveal Animations
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--exit-up {
  opacity: 0;
  transform: translateY(-30px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.reveal--exit-down {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Staggered children */
.reveal-group > * {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal-group.reveal--visible > *:nth-child(1) { opacity:1; transform:none; transition-delay:0ms; }
.reveal-group.reveal--visible > *:nth-child(2) { opacity:1; transform:none; transition-delay:80ms; }
.reveal-group.reveal--visible > *:nth-child(3) { opacity:1; transform:none; transition-delay:160ms; }
.reveal-group.reveal--visible > *:nth-child(4) { opacity:1; transform:none; transition-delay:240ms; }
.reveal-group.reveal--visible > *:nth-child(5) { opacity:1; transform:none; transition-delay:320ms; }
.reveal-group.reveal--visible > *:nth-child(6) { opacity:1; transform:none; transition-delay:400ms; }
.reveal-group.reveal--visible > *:nth-child(7) { opacity:1; transform:none; transition-delay:480ms; }
.reveal-group.reveal--visible > *:nth-child(8) { opacity:1; transform:none; transition-delay:560ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-group > * { opacity:1; transform:none; transition:none; }
}

/* ============================================================
   Scroll-to-top button
   ============================================================ */

.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background-color: var(--accent);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(200,16,46,0.4);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.2s ease;
  pointer-events: none;
  z-index: 500;
}

.scroll-top--visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-top:hover {
  background-color: var(--accent-hover);
  transform: translateY(-3px);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 600px) {
  .scroll-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
}

/* ============================================================
   Hero Slider — ALL slides position:absolute, slider has explicit height
   ============================================================ */

.hero-slider {
  position: relative;
  height: 88vh;
  min-height: 540px;
  overflow: hidden;
  background-color: var(--color-black);
}

/* Every slide: absolute, full size, hidden by default */
.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
  transform: translateX(50px);
  will-change: opacity, transform;
}

/* Active slide */
.hero-slide--active {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

/* Entering from right (next) */
.hero-slide--enter {
  opacity: 0;
  transform: translateX(50px);
}

/* Entering from left (prev) */
.hero-slide--enter-prev {
  opacity: 0;
  transform: translateX(-50px);
}

/* Exiting to left (next) */
.hero-slide--exit {
  opacity: 0;
  transform: translateX(-50px);
  pointer-events: none;
}

/* Exiting to right (prev) */
.hero-slide--exit-prev {
  opacity: 0;
  transform: translateX(50px);
  pointer-events: none;
}

/* Slide 1 — dark hero */
.hero-slide--dark {
  background-color: var(--color-black);
}

.hero-slide--dark .hero__bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse at 70% 50%, rgba(200,16,46,0.10) 0%, transparent 60%),
    repeating-linear-gradient(
      45deg, transparent, transparent 40px,
      rgba(255,255,255,0.012) 40px, rgba(255,255,255,0.012) 41px
    );
  pointer-events: none;
}

/* Slide 2 — services with bg image */
.hero-slide--services {
  background-color: var(--color-black);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-slide--services::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.55) 60%, rgba(200,16,46,0.12) 100%);
  z-index: 0;
}

.hero-slide--services .container {
  position: relative;
  z-index: 1;
  width: 100%;
}

/* Content inside slides needs z-index above bg */
.hero-slide .container,
.hero-slide .hero__content {
  position: relative;
  z-index: 1;
}

/* Services slide 2-col layout */
.services-slide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.services-slide__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.services-slide__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-silver);
}

.services-slide__item::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.services-slide__cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-xl);
}

/* ---- Slider arrows — absolute to .hero-slider ---- */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.12);
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  color: var(--color-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  z-index: 20;
}

.hero-arrow:hover {
  background: rgba(200,16,46,0.75);
  border-color: var(--accent);
}

.hero-arrow svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-arrow--prev { left: var(--space-lg); }
.hero-arrow--next { right: var(--space-lg); }

/* ---- Dot indicators — absolute to .hero-slider ---- */
.hero-controls {
  position: absolute;
  bottom: var(--space-lg);
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  z-index: 20;
  pointer-events: none;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.4);
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.3s ease;
  padding: 0;
  pointer-events: auto;
}

.hero-dot--active {
  background-color: var(--accent);
  transform: scale(1.35);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero-slider { height: auto; min-height: 0; }
  .hero-slide {
    position: relative;
    inset: auto;
    width: 100%;
    height: auto;
    display: none;
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-slide--active { display: flex; }
  .hero-arrow { display: none; }
  .hero-controls { position: relative; bottom: auto; padding: 16px 0; background: var(--color-black); }
  .services-slide { grid-template-columns: 1fr; }
  .services-slide__list { grid-template-columns: 1fr; }
}