/* expert-slider-pro/assets/css/style.css */
/* ✅ FRONTEND STYLES - Optimized for Performance, A11y & Modern Viewports (v3.0.4) */

:root {
  --esp-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --esp-speed: 0.6s;
  --esp-touch-size: 48px; /* WCAG AA Touch Target Minimum */
}

/* 📦 CONTAINER & TRACK */
.esp-slider {
  position: relative;
  overflow: hidden;
  margin: 0 auto;
  background: #111;
  width: var(--esp-w, 100%);
  height: var(--esp-h, 60vh);
  min-height: 250px;
  touch-action: pan-y;
  isolation: isolate;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
}

@supports (height: 100dvh) {
  .esp-slider {
    height: var(--esp-h, 60dvh);
  }
}

.esp-slider-track {
  position: relative;
  width: 100%;
  height: 100%;
}

/* 🖼️ SLIDE BASE & STATES */
.esp-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1a1a1a;
  opacity: 0;
  visibility: hidden;
  z-index: 0;
  transition:
    opacity var(--esp-speed) var(--esp-ease),
    transform var(--esp-speed) var(--esp-ease),
    visibility var(--esp-speed);
}

.esp-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

/* 🌫️ OVERLAY & CONTENT */
.esp-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.08) 0%,
    rgba(0, 0, 0, 0.28) 100%
  );
  z-index: 1;
  pointer-events: none;
}

.esp-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--esp-text-color, #fff);
  padding: clamp(1rem, 4vw, 2.5rem);
  max-width: min(92%, 900px);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

/* 📝 TYPOGRAPHY & BUTTON */
.esp-title {
  font-size: var(--esp-title-size, clamp(1.6rem, 5vw, 3.2rem));
  font-weight: 800;
  margin: 0 0 0.6rem;
  line-height: 1.15;
  color: inherit;
}

.esp-desc {
  font-size: var(--esp-desc-size, clamp(1rem, 2.5vw, 1.25rem));
  margin: 0 0 1.2rem;
  line-height: 1.5;
}

.esp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.8rem;
  background: #fff;
  color: #111;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  min-height: var(--esp-touch-size);
  min-width: var(--esp-touch-size);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.esp-btn:hover,
.esp-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
  background: #f8f9fa;
}

.esp-btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* 🔄 SPLIT LAYOUT */
.esp-layout-split .esp-slide {
  display: flex;
  align-items: center;
  justify-content: center;
}

.esp-slide-inner {
  display: grid;
  grid-template-columns: 1fr minmax(200px, var(--split-w, 38%));
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  width: 100%;
  max-width: min(92%, 1300px);
  margin: 0 auto;
  padding: clamp(2rem, 4vw, 3rem);
  position: relative;
  z-index: 2;
}

.esp-slide-text {
  position: relative;
  z-index: 3;
  padding: clamp(1.5rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  text-align: left;
  color: var(--esp-text-color, #ffffff);
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
}

.esp-slide-image {
  width: var(--split-w, 38%);
  max-height: 80vh;
  object-fit: contain;
  z-index: 2;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.35));
  opacity: 0;
  transition:
    opacity var(--esp-speed) var(--esp-ease),
    transform var(--esp-speed) var(--esp-ease);
  border-radius: 8px;
}

/* Reverse Layout */
.esp-layout-split.esp-reverse .esp-slide-text {
  grid-column: 2;
  text-align: right;
  align-items: flex-end;
}
.esp-layout-split.esp-reverse .esp-slide-image {
  grid-column: 1;
}

/* 📦 EXTRA CONTENT */
.esp-extra-content {
  margin: 0.8rem 0;
  line-height: 1.4;
}
.esp-extra-content iframe,
.esp-extra-content embed,
.esp-extra-content object,
.esp-extra-content video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 🎭 ANIMATIONS (GPU Accelerated) */
.esp-title:empty,
.esp-desc:empty,
.esp-btn:empty,
.esp-extra-content:empty {
  display: none !important;
}

.esp-slide .esp-title,
.esp-slide .esp-desc,
.esp-slide .esp-btn {
  opacity: 0;
  will-change: opacity, transform;
  transition:
    opacity var(--esp-speed) var(--esp-ease),
    transform var(--esp-speed) var(--esp-ease);
}

.esp-slide.active .esp-title,
.esp-slide.active .esp-desc,
.esp-slide.active .esp-btn {
  opacity: 1;
  transform: none !important;
}

.esp-slide.active .esp-title {
  transition-delay: 0.12s;
}
.esp-slide.active .esp-desc {
  transition-delay: 0.28s;
}
.esp-slide.active .esp-btn {
  transition-delay: 0.45s;
}

/* Pre-Title Animations */
.esp-slide .esp-pre-title {
  opacity: 0;
  transform: translateY(15px);
  transition:
    opacity var(--esp-speed) var(--esp-ease),
    transform var(--esp-speed) var(--esp-ease);
  will-change: opacity, transform;
}

.esp-slide.active .esp-pre-title {
  opacity: 1;
  transform: none !important;
  transition-delay: 0.05s;
}

.esp-slider[data-anim-pre="fade-up"] .esp-slide .esp-pre-title {
  transform: translateY(20px);
}
.esp-slider[data-anim-pre="fade-down"] .esp-slide .esp-pre-title {
  transform: translateY(-20px);
}
.esp-slider[data-anim-pre="slide-left"] .esp-slide .esp-pre-title {
  transform: translateX(-20px);
}
.esp-slider[data-anim-pre="slide-right"] .esp-slide .esp-pre-title {
  transform: translateX(20px);
}
.esp-slider[data-anim-pre="zoom"] .esp-slide .esp-pre-title {
  transform: scale(0.9);
}
.esp-slider[data-anim-pre="bounce"] .esp-slide.active .esp-pre-title {
  animation: espBounceIn 0.6s var(--esp-ease) forwards;
  transition: none;
  animation-delay: 0.05s;
}

/* Title/Desc/Btn/Split Initial States */
.esp-slider[data-anim-title="fade-up"] .esp-slide .esp-title,
.esp-slider[data-anim-desc="fade-up"] .esp-slide .esp-desc,
.esp-slider[data-anim-btn="fade-up"] .esp-slide .esp-btn,
.esp-slider[data-anim-split="fade-up"] .esp-slide-image {
  transform: translateY(24px);
}

.esp-slider[data-anim-title="slide-left"] .esp-slide .esp-title,
.esp-slider[data-anim-desc="slide-left"] .esp-slide .esp-desc,
.esp-slider[data-anim-btn="slide-left"] .esp-slide .esp-btn,
.esp-slider[data-anim-split="slide-left"] .esp-slide-image {
  transform: translateX(-35px);
}

.esp-slider[data-anim-title="slide-right"] .esp-slide .esp-title,
.esp-slider[data-anim-desc="slide-right"] .esp-slide .esp-desc,
.esp-slider[data-anim-btn="slide-right"] .esp-slide .esp-btn,
.esp-slider[data-anim-split="slide-right"] .esp-slide-image {
  transform: translateX(35px);
}

.esp-slider[data-anim-title="zoom"] .esp-slide .esp-title,
.esp-slider[data-anim-desc="zoom"] .esp-slide .esp-desc,
.esp-slider[data-anim-btn="zoom"] .esp-slide .esp-btn,
.esp-slider[data-anim-split="zoom"] .esp-slide-image {
  transform: scale(0.85);
}

.esp-slider[data-anim-title="flip"] .esp-slide .esp-title,
.esp-slider[data-anim-desc="flip"] .esp-slide .esp-desc,
.esp-slider[data-anim-btn="flip"] .esp-slide .esp-btn {
  transform: perspective(600px) rotateX(-20deg);
}
.esp-slider[data-anim-split="flip"] .esp-slide-image {
  transform: perspective(600px) rotateY(20deg);
}

.esp-slide.active .esp-slide-image {
  opacity: 1;
  transform: none !important;
  transition-delay: 0.35s;
}

/* Bounce Animation */
@keyframes espBounceIn {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(20px);
  }
  60% {
    transform: scale(1.05) translateY(-5px);
  }
  80% {
    transform: scale(0.98) translateY(2px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.esp-slider[data-anim-title="bounce"] .esp-slide.active .esp-title,
.esp-slider[data-anim-desc="bounce"] .esp-slide.active .esp-desc,
.esp-slider[data-anim-btn="bounce"] .esp-slide.active .esp-btn,
.esp-slider[data-anim-split="bounce"] .esp-slide.active .esp-slide-image {
  animation: espBounceIn 0.6s var(--esp-ease) forwards;
  transition: none;
}

/* Container Transitions */
.esp-slider[data-transition="zoom"] .esp-slide {
  transform: scale(1.1);
}
.esp-slider[data-transition="zoom"] .esp-slide.active {
  transform: scale(1);
}

.esp-slider[data-transition="slide"] .esp-slide {
  transform: translateX(40px);
}
.esp-slider[data-transition="slide"] .esp-slide.active {
  transform: translateX(0);
}

.esp-slider[data-transition="kenburns"] .esp-slide.active {
  animation: espKenBurns 10s ease forwards;
}
@keyframes espKenBurns {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.08) translate(-1.5%, -1.5%);
  }
}

/* 🧭 NAV & DOTS */
.esp-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  width: var(--esp-touch-size);
  height: var(--esp-touch-size);
  cursor: pointer;
  font-size: 16px;
  z-index: 4;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}

.esp-nav:hover,
.esp-nav:focus-visible {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-50%) scale(1.05);
}

.esp-nav:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.esp-nav.prev {
  left: 12px;
}
.esp-nav.next {
  right: 12px;
}

/* 🔴 Dots Navigation (Clean Specificity, No !important) */
.esp-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 20px;
  pointer-events: auto;
}

.esp-dots span {
  display: block;
  width: 10px;
  height: 10px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
  transition:
    background 0.3s ease,
    transform 0.3s ease,
    border-color 0.3s ease;
  border: 2px solid transparent;
  min-width: 10px;
  min-height: 10px;
}

.esp-dots span.active,
.esp-dots span:focus-visible,
.esp-dots span:hover {
  background: #fff;
  transform: scale(1.2);
  border-color: rgba(255, 255, 255, 0.5);
}

.esp-dots span:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* 🔖 PRE-TITLE */
.esp-pre-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.esp-layout-split .esp-pre-title {
  justify-content: flex-start;
}
.esp-layout-split.esp-reverse .esp-pre-title {
  justify-content: flex-end;
}

.esp-pre-text {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  line-height: 1.2;
}

.esp-pre-img {
  max-height: 50px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* ♿ ACCESSIBILITY */
@media (prefers-reduced-motion: reduce) {
  .esp-slide,
  .esp-slider-track,
  .esp-nav,
  .esp-dots span,
  .esp-slide .esp-title,
  .esp-slide .esp-desc,
  .esp-slide .esp-btn,
  .esp-slide .esp-slide-image,
  .esp-slide .esp-pre-title,
  .esp-extra-content {
    transition: none !important;
    animation: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    will-change: auto !important;
  }
  .esp-slide.active {
    z-index: 2 !important;
  }
}

/* 📱 MOBILE OPTIMIZED */
@media (max-width: 768px) {
  .esp-slider {
    height: auto;
    min-height: 85dvh;
    min-height: 85vh;
  }

  .esp-slide {
    position: absolute !important;
    inset: 0 !important;
    height: 100% !important;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .esp-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 92%;
    max-width: 100%;
    padding: 1.5rem 1rem;
    text-align: center;
    max-height: 80vh;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .esp-content::-webkit-scrollbar {
    display: none;
  }

  .esp-layout-split .esp-slide {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .esp-layout-split .esp-slide-inner {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem 1rem;
    width: 100%;
    max-width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .esp-layout-split .esp-slide-inner::-webkit-scrollbar {
    display: none;
  }

  .esp-slide-text {
    order: 1;
    width: 100%;
    text-align: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.55);
    padding: 1.2rem;
    border-radius: 10px;
  }

  .esp-slide-image {
    order: 2;
    width: 100% !important;
    max-height: 35vh;
    object-fit: contain;
    margin: 0 auto;
    display: block;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
  }

  .esp-layout-split.esp-reverse .esp-slide-text,
  .esp-layout-split.esp-reverse .esp-slide-image {
    grid-column: auto;
    order: initial;
  }

  .esp-pre-text {
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
  }
  .esp-pre-img {
    max-height: 45px;
  }
  .esp-layout-split .esp-pre-title,
  .esp-layout-split.esp-reverse .esp-pre-title {
    justify-content: center;
  }

  .esp-title {
    font-size: clamp(1.5rem, 7vw, 2rem) !important;
    margin-bottom: 0.4rem;
  }
  .esp-desc {
    font-size: clamp(0.95rem, 4.5vw, 1.1rem) !important;
    margin-bottom: 1rem;
  }
  .esp-btn {
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
    min-height: 44px;
  }

  .esp-nav {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }
  .esp-nav.prev {
    left: 10px;
  }
  .esp-nav.next {
    right: 10px;
  }

  .esp-dots {
    bottom: 14px;
    gap: 8px;
    padding: 6px 10px;
  }

  .esp-extra-content {
    margin: 0.5rem 0;
    font-size: 0.9rem;
  }
}