/* ============================================================
   SLIDE STYLES — Avon Protection Presentation
   ============================================================
   Each slide is a full-viewport section.
   Slide types: cover, content, split, stats, quote, cta
   ============================================================ */

/* Base slide */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-4xl) var(--space-2xl);
  opacity: 0;
  transform: translateY(30px);
  pointer-events: none;
  transition: opacity var(--duration-slide) var(--ease-out),
              transform var(--duration-slide) var(--ease-out);
  background: #0A0A0A;
  overflow: hidden;
}

/* Grain texture overlay on all slides */
.slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
  z-index: 0;
  pointer-events: none;
}

/* Subtle ambient light glow on all slides */
.slide::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 70%;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(91, 103, 112, 0.07) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

/* Ensure slide content is above overlays */
.slide > * {
  position: relative;
  z-index: 1;
}

.slide.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ----------------------------------------------------------
   SLIDE TYPE: Cover / Opening
   ---------------------------------------------------------- */
.slide--cover {
  background: #0A0A0A;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 0;
  overflow: hidden;
}

/* Animated background texture overlay */
.slide--cover .cover__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.slide--cover .cover__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Subtle radial light effect (like the smoky/spotlight in the reference) */
.slide--cover .cover__bg::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 80%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(91, 103, 112, 0.12) 0%, transparent 70%);
  animation: coverAmbient 10s ease-in-out infinite alternate;
}

.slide--cover .cover__bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -20%;
  width: 70%;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(8, 31, 44, 0.25) 0%, transparent 70%);
  animation: coverAmbient2 14s ease-in-out infinite alternate;
}

/* Noise / grain overlay for texture */
.slide--cover .cover__grain {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
  pointer-events: none;
}

/* Content wrapper */
.slide--cover .cover__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 100%;
  height: 100%;
  padding: 160px var(--space-4xl);
}

/* Top section — logo */
.slide--cover .cover__top {
  flex-shrink: 0;
}

.slide--cover .cover__logo {
  height: clamp(50px, 8vw, 90px);
  width: auto;
}

/* Middle section — main title */
.slide--cover .cover__middle {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 85%;
}

.slide--cover .cover__title {
  font-family: var(--font-heading);
  font-size: var(--fs-display);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-tight);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: clamp(1rem, 2vw, 2rem);
}

.slide--cover .cover__title .highlight {
  display: inline;
}

.slide--cover .cover__subtitle {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  color: var(--color-gray-400);
  line-height: var(--lh-normal);
  max-width: 100%;
  white-space: nowrap;
}

/* Bottom section — metadata */
.slide--cover .cover__bottom {
  flex-shrink: 0;
  display: flex;
  align-items: stretch;
  gap: var(--space-3xl);
}

.slide--cover .cover__meta-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.35rem;
}

/* Vertical divider between meta groups */
.slide--cover .cover__meta-divider {
  width: 1px;
  background: var(--color-gray-600);
  align-self: stretch;
}

.slide--cover .cover__meta-label {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gray-500);
}

.slide--cover .cover__meta-value {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  letter-spacing: 0.02em;
  line-height: var(--lh-tight);
}

.slide--cover .cover__meta-logo {
  height: clamp(22px, 2.5vw, 32px);
  width: auto;
  display: block;
}

/* ── Cover ambient animations ────────────────────────────── */
@keyframes coverAmbient {
  0%   { transform: translate(0, 0) scale(1); opacity: 0.12; }
  100% { transform: translate(-40px, 30px) scale(1.15); opacity: 0.08; }
}

@keyframes coverAmbient2 {
  0%   { transform: translate(0, 0) scale(1); opacity: 0.2; }
  100% { transform: translate(50px, -20px) scale(1.1); opacity: 0.12; }
}

/* Scan line — a slow horizontal sheen across the slide */
.slide--cover .cover__scanline {
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.015) 40%,
    rgba(255, 255, 255, 0.035) 50%,
    rgba(255, 255, 255, 0.015) 60%,
    transparent 100%
  );
  z-index: 1;
  animation: coverScanline 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes coverScanline {
  0%   { left: -50%; }
  100% { left: 150%; }
}

/* ----------------------------------------------------------
   SLIDE TYPE: Title / Hero (generic)
   ---------------------------------------------------------- */
.slide--title {
  text-align: center;
}

.slide__eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.slide--title .slide__heading {
  font-size: var(--fs-display);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-lg);
}

.slide__subheading {
  font-size: var(--fs-h3);
  font-weight: var(--fw-light);
  color: var(--color-gray-300);
  max-width: 700px;
}

/* ----------------------------------------------------------
   SLIDE TYPE: Content (text + list)
   ---------------------------------------------------------- */
.slide--content {
  align-items: flex-start;
  padding-left: 10%;
  padding-right: 10%;
}

.slide__heading {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-xl);
}

.slide__body {
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: var(--color-gray-200);
  max-width: 800px;
}

.slide__list {
  list-style: none;
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.slide__list li {
  padding-left: var(--space-lg);
  position: relative;
  font-size: var(--fs-body);
  color: var(--color-gray-200);
}

.slide__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
}

/* ----------------------------------------------------------
   SLIDE TYPE: Split (text left, visual right)
   ---------------------------------------------------------- */
.slide--split {
  flex-direction: row;
  padding: var(--space-3xl);
  gap: var(--space-3xl);
}

.slide--split .slide__left {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.slide--split .slide__right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide--split .slide__right img {
  max-height: 70vh;
  /* border-radius: var(--radius-lg); */
  /* box-shadow: var(--shadow-xl); */
}

/* ----------------------------------------------------------
   SLIDE TYPE: Stats / Metrics
   ---------------------------------------------------------- */
.slide--stats {
}

.slide--stats .stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2xl);
  width: 100%;
  max-width: 1000px;
}

.stat-card {
  text-align: center;
  padding: var(--space-2xl);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.stat-card .stat__value {
  font-family: var(--font-heading);
  font-size: var(--fs-display);
  font-weight: var(--fw-extrabold);
  color: var(--color-accent);
}

.stat-card .stat__label {
  font-size: var(--fs-small);
  color: var(--color-gray-400);
  margin-top: var(--space-sm);
}

/* ----------------------------------------------------------
   SLIDE TYPE: Quote / Testimonial
   ---------------------------------------------------------- */
.slide--quote {
  text-align: center;
}

.slide--quote blockquote {
  font-family: var(--font-heading);
  font-size: var(--fs-h2);
  font-weight: var(--fw-medium);
  font-style: italic;
  max-width: 800px;
  line-height: var(--lh-relaxed);
  color: var(--color-gray-100);
}

.slide--quote cite {
  display: block;
  margin-top: var(--space-xl);
  font-style: normal;
  font-size: var(--fs-body);
  color: var(--color-accent);
}

/* ----------------------------------------------------------
   SLIDE TYPE: CTA / Closing
   ---------------------------------------------------------- */
.slide--cta {
  text-align: center;
}

.slide--cta .slide__heading {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-lg);
}

.slide--cta .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  background: var(--gradient-accent);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.slide--cta .cta-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-glow);
}

/* ----------------------------------------------------------
   RESPONSIVE — Mobile / Tablet
   ---------------------------------------------------------- */
@media (max-width: 768px) {
  .slide--cover .cover__middle {
    max-width: 100%;
  }

  .slide--cover .cover__bottom {
    flex-direction: column;
    gap: 1rem;
  }

  .slide--cover .cover__meta-divider {
    width: 40px;
    height: 1px;
  }

  .slide--split {
    flex-direction: column;
    padding: var(--space-2xl);
    gap: var(--space-xl);
  }

  .slide--content {
    padding-left: 6%;
    padding-right: 6%;
  }

  .slide--tier-overview .tier-cards {
    grid-template-columns: 1fr;
  }

  .slide--tier-detail {
    padding-left: 6%;
    padding-right: 6%;
  }

  .slide--tier-detail .tier-proscons {
    grid-template-columns: 1fr;
  }

  .slide--comparison .comparison-table {
    font-size: var(--fs-small);
  }
}

/* ----------------------------------------------------------
   SLIDE TYPE: Tier Overview (three-column cards)
   ---------------------------------------------------------- */
.slide--tier-overview {
  text-align: center;
}

.slide--tier-overview .slide__heading {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-2xl);
}

.slide--tier-overview .tier-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  width: 100%;
  max-width: 1100px;
}

.tier-card {
  padding: var(--space-2xl) var(--space-lg);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.tier-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--tier-color, var(--color-gray-500));
}

.tier-card:hover {
  transform: translateY(-4px);
  border-color: var(--tier-color, var(--color-gray-500));
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.tier-card.tier-card--recommended {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(6, 214, 160, 0.3);
}

.tier-card .tier-card__badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--tier-color, var(--color-gray-400));
  margin-bottom: var(--space-md);
}

.tier-card .tier-card__title {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.tier-card .tier-card__subtitle {
  font-size: var(--fs-small);
  color: var(--color-gray-400);
  line-height: var(--lh-relaxed);
}

.tier-card .tier-card__recommend-tag {
  display: inline-block;
  margin-top: var(--space-md);
  padding: 0.2em 0.8em;
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #0A0A0A;
  background: var(--color-tier-best);
  border-radius: var(--radius-full);
}

/* ----------------------------------------------------------
   SLIDE TYPE: Tier Detail
   ---------------------------------------------------------- */
.slide--tier-detail {
  background: var(--color-primary);
  align-items: flex-start;
  padding-left: 10%;
  padding-right: 10%;
}

.slide--tier-detail .tier-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--tier-color, var(--color-gray-400));
  margin-bottom: var(--space-md);
}

.slide--tier-detail .tier-badge::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--tier-color, var(--color-gray-400));
}

.slide--tier-detail .slide__heading {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-sm);
}

.slide--tier-detail .slide__body {
  font-size: var(--fs-body);
  color: var(--color-gray-300);
  line-height: var(--lh-relaxed);
  max-width: 800px;
  margin-bottom: var(--space-xl);
}

.slide--tier-detail .tier-proscons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  width: 100%;
  max-width: 900px;
}

.tier-proscons__col h4 {
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-400);
  margin-bottom: var(--space-md);
}

.tier-proscons__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.tier-proscons__list li {
  font-size: var(--fs-small);
  color: var(--color-gray-200);
  padding-left: 1.5em;
  position: relative;
  line-height: var(--lh-normal);
}

.tier-proscons__list li::before {
  position: absolute;
  left: 0;
  top: 0;
}

.tier-proscons__list--pros li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--fw-bold);
}

.tier-proscons__list--cons li::before {
  content: '✗';
  color: var(--color-danger);
  font-weight: var(--fw-bold);
}

.slide--tier-detail .tier-callout {
  margin-top: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  border-left: 3px solid var(--tier-color, var(--color-gray-500));
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--fs-small);
  color: var(--color-gray-300);
  max-width: 900px;
}

/* ----------------------------------------------------------
   SLIDE TYPE: Comparison Table
   ---------------------------------------------------------- */
.slide--comparison {
  background: var(--color-primary);
  padding: var(--space-3xl) var(--space-2xl);
}

.slide--comparison .slide__heading {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-2xl);
}

.slide--comparison .comparison-table {
  width: 100%;
  max-width: 1000px;
  border-collapse: collapse;
  font-family: var(--font-body);
  font-size: var(--fs-body);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.comparison-table th {
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-bottom: var(--space-lg);
}

.comparison-table th.tier-good  { color: var(--color-tier-good); }
.comparison-table th.tier-better { color: var(--color-tier-better); }
.comparison-table th.tier-best  { color: var(--color-tier-best); }

.comparison-table td:first-child {
  text-align: left;
  color: var(--color-gray-200);
  font-weight: var(--fw-medium);
}

.comparison-table td {
  color: var(--color-gray-400);
}

.comparison-table .check {
  color: var(--color-success);
  font-size: 1.1em;
}

.comparison-table .cross {
  color: var(--color-gray-600);
  font-size: 1.1em;
}

.comparison-table .check-star {
  color: var(--color-tier-best);
  font-size: 1.1em;
}

.comparison-table tbody tr {
  transition: background var(--duration-fast) var(--ease-out);
}

.comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* ----------------------------------------------------------
   PREMIUM CARDS (Ecosystem & Pain Points)
   ---------------------------------------------------------- */
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  width: 100%;
  max-width: 640px;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  width: 100%;
  max-width: 640px;
}

.premium-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), border-color 0.3s;
  cursor: default;
  min-height: 96px;
}

.premium-card.span-2 {
  grid-column: span 2;
  justify-content: center;
}

.premium-card:hover {
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.8);
}

.card-logo-wrapper {
  width: 100px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.premium-logo {
  max-width: 100%;
  max-height: 32px;
  width: auto;
  object-fit: contain;
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.3s;
}

.premium-logo--monochrome {
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.premium-card:hover .premium-logo--monochrome {
  transform: scale(1.05);
  opacity: 1;
}

.card-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.2;
}

.card-subtitle {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.card-desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-gray-300);
  line-height: 1.6;
}

/* Original Avon Logo */
.premium-logo--avon {
  filter: none !important;
  opacity: 0.9;
}
.premium-card:hover .premium-logo--avon {
  transform: scale(1.05);
  opacity: 1;
}

.pain-grid .premium-card {
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

/* Large background number watermark */
.card-bg-num {
  position: absolute;
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-heading), 'Inter', sans-serif;
  font-size: 6rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(255, 255, 255, 0.07);
  pointer-events: none;
  user-select: none;
  z-index: 0;
  letter-spacing: -0.03em;
}

.pain-grid .card-text {
  position: relative;
  z-index: 1;
}



/* ----------------------------------------------------------
   SLIDE TYPE: Statement
   ---------------------------------------------------------- */
.slide--statement {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 15%;
}

.slide--statement .slide__eyebrow,
.slide--statement .slide__heading,
.slide--statement .slide__body {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}