/* ==========================================================================
   NTN Sliding Banner — front-end slider styles
   ========================================================================== */

/* ── Stage ─────────────────────────────────────────────────────────────────── */

.ntn-banner__stage {
  position: relative;
  width: 100%;
  /* Landscape ratio for desktop — recommended upload: 2400 × 840 px */
  aspect-ratio: 20 / 7;
  overflow: hidden;
}

@media ( max-width: 768px ) {
  .ntn-banner__stage {
    /* Square ratio for mobile — recommended upload: 1080 × 1080 px */
    aspect-ratio: 1 / 1;
  }
}

/* ── Slides ─────────────────────────────────────────────────────────────────── */

.ntn-banner__slides {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.ntn-banner__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* Desktop image by default; swapped to mobile via media query below */
  background-image: var( --ntn-slide-desktop );
  --kb-end-x: 0%;
  --kb-end-y: 0%;
  opacity: 0;
  transform: translate( 0, 0 ) scale( 1.06 );
  transition: opacity 900ms ease;
  will-change: opacity, transform;
}

@media ( max-width: 768px ) {
  .ntn-banner__slide {
    background-image: var( --ntn-slide-mobile );
  }
}

.ntn-banner__slide.is-active {
  opacity: 1;
  animation: ntn-banner-ken-burns 8s ease-in-out infinite alternate;
}

.ntn-banner__slide--fallback {
  background: linear-gradient( 135deg, var( --c-primary ) 0%, var( --c-secondary ) 100% );
  opacity: 1;
}

@keyframes ntn-banner-ken-burns {
  from { transform: translate( 0, 0 ) scale( 1.06 ); }
  to   { transform: translate( var( --kb-end-x ), var( --kb-end-y ) ) scale( 1.14 ); }
}

/* ── Dark overlay ─────────────────────────────────────────────────────────── */

.ntn-banner__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: #000;
  pointer-events: none;
  opacity: var( --ntn-slide-overlay-opacity, 0.42 );
  transition: opacity 0.9s cubic-bezier( 0.4, 0, 0.2, 1 );
}

/* ── Centre content (logo + text) ─────────────────────────────────────────── */

.ntn-banner__centre {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
}

.ntn-banner__brand-stack {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Anchors the slide text below the logo without affecting flex layout */
.ntn-banner__text-anchor {
  position: absolute;
  top: calc( 100% + 0.2rem + 25px );
  left: 50%;
  transform: translateX( -50% );
  width: min( 76vw, 740px );
  text-align: center;
}

/* ── Logo wrapper ─────────────────────────────────────────────────────────── */

.ntn-banner__logo-wrap {
  display: inline-block;
  width: min( 72vw, 460px );
  height: auto;
  animation: ntn-banner-logo-fade 1800ms ease both;
}

.ntn-banner__logo,
.ntn-banner__logo .custom-logo-link {
  width: 100%;
  height: auto;
  display: grid;
  place-items: center;
}

.ntn-banner__logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
}

.ntn-banner__site-name {
  margin: 0;
  color: #fff;
  font-size: clamp( 28px, 5vw, 56px );
  letter-spacing: 0.035em;
}

/* Inner visibility wrapper — opacity-only so layout never shifts */
.ntn-banner__logo-vis {
  transition: opacity 500ms ease;
}

.ntn-banner__logo-vis.is-hidden {
  opacity: 0;
  pointer-events: none;
}

/* ── Slide text (heading + subtitle) ─────────────────────────────────────── */

.ntn-banner__slide-text {
  text-shadow: 0 6px 20px rgba( 0, 0, 0, 0.45 );
  color: #fff;
  animation: ntn-banner-headline-fade 1800ms ease 500ms both;
}

.ntn-banner__slide-text.is-hidden {
  visibility: hidden;
}

/* Once JS manages transitions, clear the page-load animation */
.ntn-banner__slide-text.js-animated {
  animation: none;
}

.ntn-banner__slide-text.js-animated.is-exiting {
  animation: ntn-banner-text-exit 380ms ease-in both;
}

.ntn-banner__slide-text.js-animated.is-entering {
  animation: ntn-banner-text-enter 580ms cubic-bezier( 0.22, 1, 0.36, 1 ) both;
}

@keyframes ntn-banner-text-exit {
  from { opacity: 1; transform: translateY( 0 ); }
  to   { opacity: 0; transform: translateY( 10px ); }
}

@keyframes ntn-banner-text-enter {
  from { opacity: 0; transform: translateY( -12px ); }
  to   { opacity: 1; transform: translateY( 0 ); }
}

.ntn-banner__slide-heading {
  margin: 0;
  color: #fff;
  font-size: clamp( 1.1rem, 2.8vw, 2.2rem );
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.035em;
}

.ntn-banner__slide-subtitle {
  margin: 0.5rem 0 0;
  color: rgba( 255, 255, 255, 0.85 );
  font-size: clamp( 0.7rem, 1.4vw, 1rem );
  font-weight: 300;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* ── Dot pagination ───────────────────────────────────────────────────────── */

.ntn-banner__pagination {
  position: absolute;
  right: 20px;
  bottom: 20px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
}

.ntn-banner__dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 2px solid rgba( 255, 255, 255, 0.7 );
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background-color 200ms ease, border-color 200ms ease, transform 200ms ease;
}

.ntn-banner__dot.is-active {
  background: #fff;
  border-color: #fff;
  transform: scale( 1.25 );
}

.ntn-banner__dot:hover {
  border-color: #fff;
  background: rgba( 255, 255, 255, 0.5 );
}

/* ── Page-load animations ─────────────────────────────────────────────────── */

@keyframes ntn-banner-logo-fade {
  from { opacity: 0; transform: translateY( 8px ); }
  to   { opacity: 1; transform: translateY( 0 ); }
}

@keyframes ntn-banner-headline-fade {
  from { opacity: 0; transform: translateY( 12px ); }
  to   { opacity: 1; transform: translateY( 0 ); }
}

/* ── Responsive tweaks ────────────────────────────────────────────────────── */

@media ( max-width: 640px ) {
  .ntn-banner__logo-wrap {
    width: min( 86vw, 280px );
  }

  .ntn-banner__text-anchor {
    width: 92vw;
  }

  .ntn-banner__slide-heading {
    font-size: clamp( 1rem, 5vw, 1.4rem );
  }

  .ntn-banner__slide-subtitle {
    font-size: 0.75rem;
  }
}