/* ============================================
   Premium Cinematic GSAP Slider
   ============================================ */

.premium-slider-wrap *,
.premium-slider-wrap *::before,
.premium-slider-wrap *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.premium-slider-wrap {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------
   Slider Container
   -------------------------------------------- */

.slider {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: #000;
}

.slider__track {
  position: relative;
  width: 100%;
  height: 100%;
}

/* --------------------------------------------
   Slides
   -------------------------------------------- */

.slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  visibility: hidden;
  will-change: transform, opacity;
  transform: translateZ(0);
  backface-visibility: hidden;
  z-index: 1;
}

.slide.is-active {
  z-index: 2;
}

/* --------------------------------------------
   Background (Ken Burns layer)
   -------------------------------------------- */

.slide__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.slide__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  will-change: transform;
  transform: translateZ(0) scale(1);
  backface-visibility: hidden;
}

/* Subtle vignette for text legibility */
.slide__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.35) 0%,
    rgba(0, 0, 0, 0.1) 40%,
    rgba(0, 0, 0, 0.15) 70%,
    rgba(0, 0, 0, 0.45) 100%
  );
  pointer-events: none;
}

/* --------------------------------------------
   Content
   -------------------------------------------- */

.slide__content {
  position: absolute;
  z-index: 1;
  display: flex;
  flex-direction: column;
  max-width: 90vw;
}

/* Slide 1 — centered hero introduction */
.slide--center .slide__content {
  inset: 0;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
}

/* Slide 2 — bottom-right editorial layout */
.slide--bottom-right .slide__content {
  right: clamp(80px, 8vw, 120px);
  bottom: clamp(80px, 8vw, 120px);
  left: auto;
  align-items: flex-end;
  justify-content: flex-end;
  text-align: right;
  padding: 0;
}

/* Subtitle — visible immediately, no animation */
.slide__subtitle {
  font-family: 'Inter', sans-serif;
  font-size: clamp(0.65rem, 1.2vw, 0.85rem);
  font-weight: 500;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: clamp(1rem, 2.5vw, 1.75rem);
  opacity: 1;
}

/* Heading */
.slide__heading {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.5rem, 8vw, 6.5rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #fff;
  max-width: 14ch;
}

.heading-line {
  display: block;
  overflow: hidden;
}

.heading-line + .heading-line {
  margin-top: 0.1em;
}

.slide__char {
  display: inline-block;
  opacity: 0;
  will-change: transform, opacity;
}

.slide__char--space {
  width: 0.3em;
}

/* --------------------------------------------
   Navigation Arrows
   -------------------------------------------- */

.slider__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: clamp(44px, 5vw, 56px);
  height: clamp(44px, 5vw, 56px);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(47, 143, 157, 0.45);
  border-radius: 50%;
  background: rgba(47, 143, 157, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #2f8f9d;
  cursor: pointer;
  transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.slider__nav:hover {
  color: #12395B;
  background: rgba(18, 57, 91, 0.15);
  border-color: rgba(18, 57, 91, 0.55);
}

.slider__nav:active {
  transform: translateY(-50%) scale(0.95);
}

.slider__nav--prev {
  left: clamp(1rem, 3vw, 2.5rem);
}

.slider__nav--next {
  right: clamp(1rem, 3vw, 2.5rem);
}

.slider__nav:disabled {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.slider__nav:focus-visible {
  outline: 2px solid #2f8f9d;
  outline-offset: 3px;
}

/* --------------------------------------------
   Responsive
   -------------------------------------------- */

@media (max-width: 1024px) {
  .slide__heading {
    font-size: clamp(2.25rem, 7vw, 5rem);
    max-width: 16ch;
  }
}

@media (max-width: 768px) {
  .slide--center .slide__content {
    padding: 1.5rem 1.25rem;
  }

  .slide--bottom-right .slide__content {
    right: clamp(20px, 6vw, 32px);
    bottom: clamp(20px, 6vw, 32px);
  }

  .slide__subtitle {
    letter-spacing: 0.28em;
    margin-bottom: 1rem;
  }

  .slide__heading {
    font-size: clamp(2rem, 10vw, 3.5rem);
    max-width: 100%;
  }

  .slider__nav {
    width: 42px;
    height: 42px;
  }

  .slider__nav--prev {
    left: 0.75rem;
  }

  .slider__nav--next {
    right: 0.75rem;
  }
}

@media (max-width: 480px) {
  .slide__subtitle {
    font-size: 0.6rem;
    letter-spacing: 0.22em;
  }

  .slide__heading {
    font-size: clamp(1.75rem, 11vw, 2.75rem);
    line-height: 1.1;
  }
}