@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0b0b0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border-card: rgba(255, 255, 255, 0.06);
  --border-card-hover: rgba(139, 92, 246, 0.3);
  --text-primary: #e8e8ed;
  --text-secondary: #9a9ab0;
  --text-muted: #5a5a72;
  --accent: #8b5cf6;
  --accent-soft: rgba(139, 92, 246, 0.15);
  --accent-glow: rgba(139, 92, 246, 0.25);
  --accent-blue: #3b82f6;
  --accent-emerald: #34d399;
  --accent-amber: #fbbf24;
  --accent-rose: #f472b6;
  --accent-cyan: #22d3ee;
  --accent-orange: #fb923c;
  --radius: 20px;
  --radius-sm: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 3rem 2.5rem 7rem;
  position: relative;
  overflow-y: auto;
}

body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 20%, rgba(139, 92, 246, 0.04) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  z-index: -1;
  animation: bgShift 20s ease-in-out infinite alternate;
}

@keyframes bgShift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-5%, -3%); }
}

/* ---- SLIDE CONTAINER ---- */

.slide {
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- TYPOGRAPHY ---- */

.slide-number {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.5rem 1.4rem;
  border-radius: 999px;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  text-align: center;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  color: var(--text-primary);
}

.subtitle {
  font-size: 1.4rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 700px;
  line-height: 1.6;
}

/* ---- CARDS ---- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  width: 100%;
}

.cards-2col {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--bg-card);
  border: 2px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--accent)), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.08);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  background: var(--accent-soft);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.card .role-name {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card ul li {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.55;
  padding-left: 1.3rem;
  position: relative;
}

.card ul li::before {
  content: '\203A';
  position: absolute;
  left: 0;
  color: var(--card-accent, var(--accent));
  font-weight: 700;
}

/* Card accent colors */
.card[data-accent="blue"] { --card-accent: var(--accent-blue); }
.card[data-accent="blue"] .card-icon { background: rgba(59, 130, 246, 0.15); }

.card[data-accent="emerald"] { --card-accent: var(--accent-emerald); }
.card[data-accent="emerald"] .card-icon { background: rgba(52, 211, 153, 0.15); }

.card[data-accent="amber"] { --card-accent: var(--accent-amber); }
.card[data-accent="amber"] .card-icon { background: rgba(251, 191, 36, 0.15); }

.card[data-accent="rose"] { --card-accent: var(--accent-rose); }
.card[data-accent="rose"] .card-icon { background: rgba(244, 114, 182, 0.15); }

.card[data-accent="cyan"] { --card-accent: var(--accent-cyan); }
.card[data-accent="cyan"] .card-icon { background: rgba(34, 211, 238, 0.15); }

.card[data-accent="orange"] { --card-accent: var(--accent-orange); }
.card[data-accent="orange"] .card-icon { background: rgba(251, 146, 60, 0.15); }

.card[data-accent="purple"] { --card-accent: var(--accent); }
.card[data-accent="purple"] .card-icon { background: var(--accent-soft); }

/* ---- TEAM TAGS (Slide 1) ---- */

.team-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.tag {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 2px solid var(--border-card);
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  transition: all var(--transition);
  cursor: default;
}

.tag:hover {
  color: var(--text-primary);
  background: var(--accent-soft);
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* ---- TIMELINE (Slide 5) ---- */

.timeline {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.65rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 3px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-blue), var(--accent-emerald));
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 0.85rem 0;
  position: relative;
  transition: all var(--transition);
  opacity: 0;
  transform: translateX(-12px);
  animation: timelineIn 0.5s ease-out forwards;
}

.timeline-item:hover {
  opacity: 1;
}

.timeline-item:hover .timeline-content h4 {
  color: var(--accent);
}

.timeline-item:nth-child(1)  { animation-delay: 0.05s; }
.timeline-item:nth-child(2)  { animation-delay: 0.10s; }
.timeline-item:nth-child(3)  { animation-delay: 0.15s; }
.timeline-item:nth-child(4)  { animation-delay: 0.20s; }
.timeline-item:nth-child(5)  { animation-delay: 0.25s; }
.timeline-item:nth-child(6)  { animation-delay: 0.30s; }
.timeline-item:nth-child(7)  { animation-delay: 0.35s; }
.timeline-item:nth-child(8)  { animation-delay: 0.40s; }
.timeline-item:nth-child(9)  { animation-delay: 0.45s; }
.timeline-item:nth-child(10) { animation-delay: 0.50s; }
.timeline-item:nth-child(11) { animation-delay: 0.55s; }

@keyframes timelineIn {
  to { opacity: 1; transform: translateX(0); }
}

.timeline-dot {
  position: absolute;
  left: -2.5rem;
  top: 0.85rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent);
  transition: all var(--transition);
  z-index: 1;
  transform: translateX(3.5px);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-step {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 2rem;
  padding-top: 0.1rem;
}

.timeline-content h4 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.timeline-content p {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ---- NAVIGATION ---- */

.nav {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: rgba(18, 18, 26, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 2px solid var(--border-card);
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  z-index: 100;
}

.nav-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid var(--border-card);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.2rem;
  transition: all var(--transition);
  cursor: pointer;
}

.nav-arrow:hover {
  background: var(--accent-soft);
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--text-primary);
  transform: scale(1.1);
}

.nav-arrow.disabled {
  opacity: 0.25;
  pointer-events: none;
}

.nav-dots {
  display: flex;
  gap: 0.65rem;
}

.nav-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.3;
  transition: all var(--transition);
  text-decoration: none;
  display: block;
}

.nav-dot:hover {
  opacity: 0.6;
  transform: scale(1.3);
}

.nav-dot.active {
  opacity: 1;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  transform: scale(1.2);
}

/* ---- TWO COL LAYOUT (Slide 4) ---- */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  width: 100%;
}

.col-card {
  background: var(--bg-card);
  border: 2px solid var(--border-card);
  border-radius: var(--radius);
  padding: 2.5rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.col-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--accent)), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.col-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.08);
}

.col-card:hover::before {
  opacity: 1;
}

.col-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.col-card h3 span {
  font-size: 1.6rem;
}

.col-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.col-card ul li {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.55;
  padding-left: 1.4rem;
  position: relative;
}

.col-card ul li::before {
  content: '\203A';
  position: absolute;
  left: 0;
  color: var(--card-accent, var(--accent));
  font-weight: 700;
}

/* ---- ORG CHART (Slide 2) ---- */

.org {
  position: relative;
  width: 100%;
  max-width: 920px;
}

.org-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: visible;
}

.org-svg path {
  filter: drop-shadow(0 0 4px rgba(139, 92, 246, 0.18));
}

.org-row {
  position: relative;
  z-index: 2;
}

.org-row-1 {
  display: flex;
  justify-content: center;
}

.org-row-1 .org-card {
  width: 100%;
  text-align: center;
}

.org-row-1 .card-icon {
  margin: 0 auto 0.35rem;
}

.org-row-3 {
  display: flex;
  gap: 1.5rem;
}

.org-row-3 .org-card {
  flex: 1;
}

.org-card {
  padding: 0.75rem 1rem;
}

.org-card:hover {
  transform: none;
}

.org-card h3 {
  font-size: 0.9rem;
  margin-bottom: 0;
}

.org-card .card-icon {
  width: 28px;
  height: 28px;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
}

.org-spacer {
  height: 52px;
}

.org-labels {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

.org-label {
  position: absolute;
  transform: translate(-50%, -50%);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(11, 11, 15, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.18rem 0.55rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  white-space: nowrap;
  letter-spacing: 0.02em;
  opacity: 0;
  animation: orgFadeIn 0.4s ease-out forwards;
}

@keyframes orgDraw {
  to { stroke-dashoffset: 0; }
}

@keyframes orgFadeIn {
  to { opacity: 1; }
}

/* ---- RESPONSIVE ---- */

@media (max-width: 1024px) {
  .cards-2col {
    grid-template-columns: 1fr;
  }

  .two-col {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  body {
    padding: 1.5rem 1rem 6rem;
  }

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

  .cards-2col {
    grid-template-columns: 1fr;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .slide {
    gap: 1.5rem;
  }

  .nav {
    bottom: 1rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.35rem;
  }
}