/* ═══════════════════════════════════════════════════
   PresentationCG v2 — SLIDE TYPES (20 типов)
   Каждый слайд: <section class="slide slide--{type}">
   ═══════════════════════════════════════════════════ */

/* ═══════════════════════════
   #1 TITLE-HERO
   ═══════════════════════════ */
.slide--title-hero {
  justify-content: center;
  gap: var(--slide-gap);
  background: radial-gradient(ellipse at 50% 20%, var(--bg-alt), var(--bg));
}
.slide--title-hero h1 {
  font-size: var(--fs-hero);
  letter-spacing: -0.03em;
  max-width: 18ch;
}
.slide--title-hero p {
  font-size: var(--fs-lg);
  color: var(--text-dim);
  max-width: 40ch;
}

/* ═══════════════════════════
   #2 PROBLEM
   ═══════════════════════════ */
.slide--problem {
  background: var(--bg);
}
.slide--problem h2 {
  color: var(--danger);
}
.slide--problem .problem-icon {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

/* ═══════════════════════════
   #3 ROADMAP
   ═══════════════════════════ */
.slide--roadmap .roadmap-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: left;
  counter-reset: roadmap;
}
.slide--roadmap .roadmap-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  counter-increment: roadmap;
}
.slide--roadmap .roadmap-item::before {
  content: counter(roadmap);
  flex-shrink: 0;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: var(--fs-sm);
}

/* ═══════════════════════════
   #4 TEXT-IMAGE
   ═══════════════════════════ */
.slide--text-image .slide__inner {
  flex-direction: row;
  align-items: center;
  text-align: left;
}
.slide--text-image .slide__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.slide--text-image .slide__image {
  flex: 1;
  border-radius: var(--radius);
  overflow: hidden;
}
.slide--text-image .slide__image img {
  width: 100%; height: auto;
  object-fit: cover;
}
@media (max-width: 768px) {
  .slide--text-image .slide__inner {
    flex-direction: column;
  }
}

/* ═══════════════════════════
   #5 IMAGE-FULL
   ═══════════════════════════ */
.slide--image-full {
  padding: 0;
}
.slide--image-full .slide__bg-img {
  position: absolute; inset: 0;
  object-fit: cover;
  width: 100%; height: 100%;
  z-index: 0;
}
.slide--image-full .slide__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
  z-index: 1;
}
.slide--image-full .slide__inner {
  position: relative; z-index: 2;
  justify-content: flex-end;
  padding: var(--slide-padding);
  min-height: 100vh;
  text-align: left;
}

/* ═══════════════════════════
   #6 QUOTE
   ═══════════════════════════ */
.slide--quote {
  justify-content: center;
}
.slide--quote blockquote {
  font-size: var(--fs-xl);
  max-width: 28ch;
  margin: 0 auto;
  border-left: none;
  text-align: center;
  padding: 0;
}
.slide--quote blockquote::before {
  content: "\201C";
  display: block;
  font-size: 4rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.3em;
}
.slide--quote cite {
  display: block;
  margin-top: 1em;
  font-size: var(--fs-sm);
  font-style: normal;
  color: var(--text-dim);
}

/* ═══════════════════════════
   #7 STATS / NUMBERS
   ═══════════════════════════ */
.slide--stats .stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  width: 100%;
  max-width: 900px;
}
.slide--stats .stat {
  text-align: center;
}
.slide--stats .stat__value {
  font-size: var(--fs-hero);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.slide--stats .stat__label {
  font-size: var(--fs-sm);
  color: var(--text-dim);
  margin-top: 0.4em;
}

/* ═══════════════════════════
   #8 CHART
   ═══════════════════════════ */
.slide--chart .chart-container {
  width: 100%;
  max-width: 700px;
  min-height: 300px;
  margin: 0 auto;
}
.slide--chart .chart-container svg {
  width: 100%;
  height: auto;
}

/* ═══════════════════════════
   #9 TIMELINE
   ═══════════════════════════ */
.slide--timeline .timeline {
  display: flex;
  gap: 0;
  align-items: flex-start;
  width: 100%;
  max-width: 1000px;
  overflow-x: auto;
  padding: 20px 0;
}
.slide--timeline .timeline-item {
  flex: 1;
  min-width: 140px;
  text-align: center;
  position: relative;
  padding-top: 32px;
}
.slide--timeline .timeline-item::before {
  content: "";
  position: absolute;
  top: 10px; left: 0; right: 0;
  height: 2px;
  background: var(--text-dim);
  opacity: 0.3;
}
.slide--timeline .timeline-item::after {
  content: "";
  position: absolute;
  top: 4px; left: 50%;
  transform: translateX(-50%);
  width: 14px; height: 14px;
  border-radius: var(--radius-full);
  background: var(--accent);
  z-index: 1;
}
.slide--timeline .timeline-year {
  font-weight: 700;
  color: var(--accent);
  font-size: var(--fs-sm);
}
.slide--timeline .timeline-desc {
  font-size: var(--fs-xs);
  color: var(--text-dim);
  margin-top: 4px;
}

/* ═══════════════════════════
   #10 COMPARISON
   ═══════════════════════════ */
.slide--comparison .comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  width: 100%;
  max-width: 1000px;
}
.slide--comparison .comparison-col {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--bg-alt);
  text-align: left;
}
.slide--comparison .comparison-col--highlight {
  background: var(--accent);
  color: #fff;
  transform: scale(1.04);
  box-shadow: var(--shadow-lg);
}
.slide--comparison .comparison-col h3 {
  font-size: var(--fs-lg);
  margin-bottom: 12px;
}
.slide--comparison .comparison-col ul {
  display: flex; flex-direction: column; gap: 8px;
}
.slide--comparison .comparison-col li::before {
  content: "✓ ";
  color: var(--success);
  font-weight: 700;
}
.slide--comparison .comparison-col--highlight li::before {
  color: #fff;
}

/* ═══════════════════════════
   #11 BEFORE-AFTER
   ═══════════════════════════ */
.slide--before-after .ba-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  aspect-ratio: 16/10;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: ew-resize;
  user-select: none;
}
.slide--before-after .ba-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.slide--before-after .ba-after {
  clip-path: inset(0 50% 0 0); /* JS двигает через style */
}
.slide--before-after .ba-handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%; /* JS двигает */
  width: 4px;
  background: #fff;
  z-index: 5;
  transform: translateX(-50%);
}
.slide--before-after .ba-handle::before,
.slide--before-after .ba-handle::after {
  content: "";
  position: absolute;
  left: 50%; transform: translateX(-50%);
  width: 32px; height: 32px;
  border-radius: var(--radius-full);
  background: #fff;
  box-shadow: var(--shadow-md);
}
.slide--before-after .ba-handle::before { top: 50%; margin-top: -16px; }
.slide--before-after .ba-label {
  position: absolute;
  bottom: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(0,0,0,0.6);
  font-size: var(--fs-xs);
  color: #fff;
  z-index: 6;
}
.slide--before-after .ba-label--before { left: 12px; }
.slide--before-after .ba-label--after  { right: 12px; }

/* ═══════════════════════════
   #12 VIDEO
   ═══════════════════════════ */
.slide--video .video-frame {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
}
.slide--video .video-frame iframe,
.slide--video .video-frame video {
  width: 100%; height: 100%;
  border: none;
  object-fit: cover;
}

/* ═══════════════════════════
   #13 CODE-DEMO
   ═══════════════════════════ */
.slide--code-demo {
  text-align: left;
}
.slide--code-demo .code-block {
  width: 100%;
  max-width: 800px;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}
.slide--code-demo .code-header {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  background: rgba(255,255,255,0.06);
  font-size: var(--fs-xs);
  color: var(--text-dim);
}
.slide--code-demo .code-dots {
  display: flex; gap: 6px;
}
.slide--code-demo .code-dots span {
  width: 10px; height: 10px;
  border-radius: var(--radius-full);
}
.slide--code-demo .code-dots span:nth-child(1) { background: #FF5F57; }
.slide--code-demo .code-dots span:nth-child(2) { background: #FEBC2E; }
.slide--code-demo .code-dots span:nth-child(3) { background: #28C840; }
.slide--code-demo pre {
  margin: 0;
  border-radius: 0 0 var(--radius) var(--radius);
}

/* ═══════════════════════════
   #14 CARD-GRID
   ═══════════════════════════ */
.slide--card-grid .cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  width: 100%;
  max-width: 1000px;
}
.slide--card-grid .card {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--bg-alt);
  text-align: left;
  border: 1px solid rgba(255,255,255,0.06);
  transition:
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.slide--card-grid .card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.slide--card-grid .card__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.slide--card-grid .card h3 {
  font-size: var(--fs-base);
  margin-bottom: 6px;
}
.slide--card-grid .card p {
  font-size: var(--fs-sm);
  color: var(--text-dim);
}

/* ═══════════════════════════
   #15 WOW-MOMENT
   ═══════════════════════════ */
.slide--wow-moment {
  justify-content: center;
}
.slide--wow-moment h2 {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  max-width: 16ch;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ═══════════════════════════
   #16 TEAM-LOGOS
   ═══════════════════════════ */
.slide--team-logos .logo-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
  align-items: center;
  max-width: 900px;
}
.slide--team-logos .logo-grid img {
  height: 40px;
  width: auto;
  opacity: 0.5;
  filter: grayscale(1);
  transition:
    opacity var(--dur-fast),
    filter var(--dur-fast);
}
.slide--team-logos .logo-grid img:hover {
  opacity: 1;
  filter: grayscale(0);
}

/* ═══════════════════════════
   #17 CTA
   ═══════════════════════════ */
.slide--cta {
  justify-content: center;
  gap: 24px;
}
.slide--cta h2 {
  font-size: var(--fs-xl);
}
.slide--cta .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #fff;
  font-size: var(--fs-base);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition:
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.slide--cta .cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0,113,227,0.4);
}
.slide--cta .cta-contacts {
  font-size: var(--fs-sm);
  color: var(--text-dim);
}

/* ═══════════════════════════
   #18 HERO-3D (Three.js фон)
   ═══════════════════════════ */
.slide--hero-3d {
  padding: 0;
}
.slide--hero-3d canvas {
  position: absolute; inset: 0;
  width: 100% !important;
  height: 100% !important;
  z-index: 0;
}
.slide--hero-3d .slide__inner {
  position: relative; z-index: 2;
  justify-content: center;
  padding: var(--slide-padding);
  min-height: 100vh;
}

/* ═══════════════════════════
   #19 SCROLL-STORY
   ═══════════════════════════ */
.slide--scroll-story {
  overflow-y: auto;
  scroll-snap-type: y mandatory;
}
.slide--scroll-story .story-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--slide-padding);
  scroll-snap-align: start;
}

/* ═══════════════════════════
   #20 BLANK
   ═══════════════════════════ */
.slide--blank {
  /* Пустой — пользователь стилизует через style.css */
}