:root {
  --bg: #ffffff;
  --fg: #111111;
  --accent: #000000;
  --yellow: #ffd60a;
  --pink: #ff006e;
  --blue: #0077be;
  --green: #06d6a0;
  --orange: #ff8500;
  --violet: #8338ec;
  --mint: #06ffa5;
  --cream: #fff8e1;
  --border: 4px;
  --radius: 16px;
  --shadow-color: rgba(0, 0, 0, 0.15);
  --gradient-primary:  #b80f0f;
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

body {
  margin: 0;
  font-family: "Space Grotesk", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--fg);
  background: var(--bg);
}

/* Slides */
.slides {
  counter-reset: slide;
}
.slide {
  min-height: 100svh;
  display: grid;
  align-items: center;
  border-bottom: var(--border) solid var(--fg);
  scroll-snap-align: start;
  position: relative;
}
.slide .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 16px;
}
.slide--yellow { background: var(--yellow); }
.slide--pink { background: var(--pink); }
.slide--blue { background: var(--blue); }
.slide--green { background: var(--green); }
.slide--orange { background: var(--orange); }
.slide--violet { background: var(--violet); }
.slide--mint { background: var(--mint); }
.slide--cream { background: var(--cream); }

/* Type */
.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 12px;
  font-size: 14px;
}
.display {
  font-size: clamp(42px, 8vw, 104px);
  line-height: 0.95;
  margin: 0 0 16px;
  text-transform: none;
  font-weight: 700;
}
.title {
  font-size: clamp(28px, 5vw, 56px);
  margin: 0 0 12px;
  font-weight: 700;
}
.subtitle {
  font-size: clamp(18px, 3vw, 28px);
  margin: 0 0 8px;
  font-weight: 700;
}
.lead {
  font-size: clamp(16px, 2.5vw, 22px);
  max-width: 60ch;
  line-height: 1.4;
}

/* Layout helpers */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.stack {
  display: grid;
  gap: 16px;
}
.panel {
  background: rgba(255, 255, 255, 0.7);
  border: var(--border) solid var(--fg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 8px 8px 0 0 var(--fg);
}

/* Enhanced Cards */
.card-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.enhanced-cards {
  gap: 24px;
}

.card {
  background: #fff;
  border: var(--border) solid var(--fg);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 8px 8px 0 0 var(--fg);
  min-height: 180px;
  transition: all 300ms ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 12px 12px 0 0 var(--fg);
}

.card h3 { 
  margin-top: 0; 
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card .icon,
.card .card-icon {
  font-size: 24px;
  display: inline-block;
}

.card ul {
  margin: 0;
  padding-left: 18px;
}

.card li {
  margin-bottom: 8px;
  font-size: 16px;
  line-height: 1.4;
}

/* Pro Tip Cards */
.pro-tip-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
  backdrop-filter: blur(10px);
  border: 3px solid var(--fg);
}

.pro-tip-card:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0.95));
}

/* Stack Cards with Tool Tags */
.stack-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.stack-card {
  min-height: 200px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7));
  backdrop-filter: blur(8px);
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tool-tag {
  display: inline-block;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid var(--fg);
  border-radius: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-weight: 600;
  transition: all 200ms ease;
}

.tool-tag:hover {
  transform: translateY(-1px);
  background: var(--fg);
  color: #fff;
}

.tool-tag.premium {
  background: linear-gradient(135deg, #ffd700, #ffed4a);
  border-color: #f59e0b;
  color: #92400e;
}

.tool-tag.hot {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  border-color: #b91c1c;
  color: #fff;
}

/* Buttons */
.btn {
  display: inline-block;
  text-decoration: none;
  color: var(--fg);
  background: transparent;
  border: var(--border) solid var(--fg);
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 700;
  transition: all 200ms ease;
}
.btn:hover {
  background: var(--fg);
  color: #fff;
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 0 var(--fg);
}
.btn-lg {
  font-size: 18px;
  padding: 16px 24px;
}
.actions { 
  display: flex; 
  gap: 12px; 
  flex-wrap: wrap; 
}

/* Enhanced Tools Panel */
.tools-panel {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

.tool-categories {
  display: grid;
  gap: 20px;
  margin-top: 16px;
}

.tool-category {
  background: rgba(255, 255, 255, 0.6);
  border: 2px solid var(--fg);
  border-radius: 12px;
  padding: 16px;
}

.category-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0 0 12px;
  color: var(--fg);
  opacity: 0.8;
}

/* Enhanced Badges */
.tool-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-block;
  text-decoration: none;
  color: var(--fg);
  background: #fff;
  border: var(--border) solid var(--fg);
  padding: 8px 12px;
  border-radius: 10px;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 13px;
  font-weight: 500;
  transition: all 200ms ease;
  position: relative;
  overflow: hidden;
}

.badge:hover {
  background: var(--fg);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Premium Badge Styles */
.badge.premium {
  background: linear-gradient(135deg, #ffd700, #ffed4a);
  border-color: #f59e0b;
  color: #92400e;
  font-weight: 600;
}

.badge.premium:hover {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
}

.badge.premium::after {
  content: "✨";
  margin-left: 4px;
  font-size: 10px;
}

/* Hot Badge Styles */
.badge.hot {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  border-color: #b91c1c;
  color: #fff;
  font-weight: 600;
}

.badge.hot:hover {
  background: linear-gradient(135deg, #b91c1c, #991b1b);
  transform: translateY(-2px) scale(1.02);
}

.badge.hot::after {
  content: "🔥";
  margin-left: 4px;
  font-size: 10px;
}

/* Enhanced Points List */
.points-list {
  list-style: none;
  padding: 0;
  margin: 16px 0;
  display: grid;
  gap: 8px;
}

.points-list li {
  background: rgba(255, 255, 255, 0.9);
  border: var(--border) solid var(--fg);
  border-radius: 10px;
  padding: 14px 18px 14px 45px;
  font-weight: 500;
  position: relative;
  transition: all 200ms ease;
  backdrop-filter: blur(5px);
}

.points-list li:hover {
  transform: translateX(4px);
  background: rgba(255, 255, 255, 1);
  box-shadow: 4px 4px 0 0 var(--fg);
}

.points-list li::before {
  content: "▶";
  position: absolute;
  left: 18px;
  font-weight: 700;
  color: var(--fg);
  font-size: 12px;
  top: 50%;
  transform: translateY(-50%);
}

/* Reveal animations */
.reveal { 
  opacity: 0; 
  transform: translateY(20px); 
}
.reveal.is-visible { 
  opacity: 1; 
  transform: translateY(0); 
  transition: opacity 500ms ease, transform 500ms ease; 
}

/* Hero tweaks */
.slide--hero .display {
  text-shadow: 2px 2px 0 var(--fg);
}

/* Hero Layout with Image */
.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1400px;
  min-height: calc(100vh - 120px);
}

.hero-content {
  z-index: 2;
  width: 100%;
}

.hero-image {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Hero Footer */
.hero-footer {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.study-jam-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.study-jam-text {
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.8;
}

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-container {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.poster-image {
  width: 100%;
  height: auto;
  border-radius: 20px;
  border: var(--border) solid var(--fg);
  box-shadow: 12px 12px 0 0 var(--fg);
  transform: rotate(-2deg);
  transition: transform 300ms ease;
}

.poster-image:hover {
  transform: rotate(0deg) scale(1.02);
}

.image-decoration {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* Main decorative elements */
.image-decoration::before {
  content: '';
  position: absolute;
  top: -25px;
  right: -25px;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--pink), var(--violet));
  border: var(--border) solid var(--fg);
  border-radius: 50%;
  box-shadow: 8px 8px 0 0 var(--fg);
  animation: float 3s ease-in-out infinite;
}

.image-decoration::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: -30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(45deg, var(--orange), var(--yellow));
  border: var(--border) solid var(--fg);
  border-radius: 12px;
  transform: rotate(15deg);
  box-shadow: 6px 6px 0 0 var(--fg);
  animation: bounce 2s ease-in-out infinite;
}

/* Additional decorative elements */
.image-container::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -35px;
  width: 45px;
  height: 45px;
  background: var(--green);
  border: var(--border) solid var(--fg);
  border-radius: 50% 0;
  transform: rotate(-20deg);
  box-shadow: 4px 4px 0 0 var(--fg);
  z-index: -1;
  animation: wiggle 4s ease-in-out infinite;
}

.image-container::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -40px;
  width: 25px;
  height: 70px;
  background: var(--blue);
  border: var(--border) solid var(--fg);
  border-radius: 20px;
  transform: translateY(-50%) rotate(25deg);
  box-shadow: 5px 5px 0 0 var(--fg);
  z-index: -1;
  animation: sway 3.5s ease-in-out infinite;
}

/* Background pattern */
.hero-image::before {
  content: '';
  position: absolute;
  top: -50px;
  left: -50px;
  right: -50px;
  bottom: -50px;
  background: 
    radial-gradient(circle at 20% 30%, var(--yellow) 2px, transparent 2px),
    radial-gradient(circle at 80% 70%, var(--mint) 2px, transparent 2px),
    radial-gradient(circle at 60% 20%, var(--pink) 1px, transparent 1px);
  background-size: 40px 40px, 60px 60px, 30px 30px;
  opacity: 0.3;
  z-index: -2;
  animation: drift 8s linear infinite;
}

/* Animations */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(5deg); }
}

@keyframes bounce {
  0%, 100% { transform: rotate(15deg) translateY(0px); }
  50% { transform: rotate(20deg) translateY(-10px); }
}

@keyframes wiggle {
  0%, 100% { transform: rotate(-20deg) scale(1); }
  25% { transform: rotate(-15deg) scale(1.05); }
  75% { transform: rotate(-25deg) scale(0.95); }
}

@keyframes sway {
  0%, 100% { transform: translateY(-50%) rotate(25deg); }
  50% { transform: translateY(-50%) rotate(15deg); }
}

@keyframes drift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-20px, -20px); }
}

/* New Layout: Content Left, Tools Right */
.slide-with-tools-right {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
  max-width: 1400px;
}

.slide-main-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
}

.content-panel {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

.slide-image {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.image-container-small {
  width: 140px;
  position: relative;
}

.content-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 3px solid var(--fg);
  box-shadow: 6px 6px 0 0 var(--fg);
  opacity: 0.9;
  transition: all 300ms ease;
}

.content-image:hover {
  opacity: 1;
  transform: rotate(2deg) scale(1.05);
}

.slide-tools-sidebar {
  position: sticky;
  top: 80px;
}

.tools-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--fg);
}

.tools-title i {
  font-size: 20px;
  color: var(--accent);
}

/* Legacy poster layout for hero */
.slide-with-poster {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
  max-width: 1400px;
}

.slide-content {
  display: grid;
  gap: 24px;
}

.slide-poster {
  position: sticky;
  top: 80px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.poster-container {
  position: relative;
  width: 100%;
  max-width: 280px;
}

.slide-poster-image {
  width: 100%;
  height: auto;
  border-radius: 16px;
  border: var(--border) solid var(--fg);
  box-shadow: 8px 8px 0 0 var(--fg);
  opacity: 0.8;
  transition: all 300ms ease;
}

.slide-poster-image:hover {
  opacity: 1;
  transform: scale(1.02);
}

/* Speaker info */
.speaker-info {
  background: rgba(0, 0, 0, 0.1);
  border: var(--border) solid var(--fg);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-top: 16px;
  text-align: left;
  max-width: 280px;
}
.speaker-name {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 4px;
}
.speaker-details {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  opacity: 0.8;
  margin-bottom: 0;
}

.organization-info {
  margin-top: 12px;
}

.tinkerhub-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: #fff;
  background: var(--gradient-primary);
  padding: 12px 18px;
  border-radius: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-weight: 700;
  font-size: 13px;
  border: var(--border) solid var(--fg);
  box-shadow: 6px 6px 0 0 var(--fg);
  transition: all 200ms ease;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tinkerhub-link::before {
  content: '';
  position: absolute;
  top: -2px;
  right: -2px;
  width: 10px;
  height: 10px;
  background: var(--yellow);
  border: 2px solid var(--fg);
  border-radius: 50%;
  z-index: 1;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.8; }
}

.tinkerhub-link:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: 8px 8px 0 0 var(--fg);
  background: var(--gradient-primary);
}

.tinkerhub-link:hover::before {
  background: var(--orange);
  transform: scale(1.3);
}

.tinkerhub-link i {
  font-size: 16px;
  color: #fff;
}

/* Responsive */
@media (max-width: 960px) {
  .grid-2 { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .stack-grid { grid-template-columns: 1fr; }
  .card { padding: 24px; min-height: 160px; }
  .card h3 { font-size: 20px; }
  .card li { font-size: 15px; }
  
  /* Hero responsive */
  .hero-container {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
    padding: 24px 16px;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-image {
    order: 0;
    margin-bottom: 16px;
  }
  
  .image-container {
    max-width: 280px;
    margin: 0 auto;
  }
  
  .display {
    font-size: clamp(32px, 6vw, 48px);
    line-height: 1.1;
  }
  
  .eyebrow {
    font-size: 12px;
  }
  
  .speaker-info {
    padding: 10px 14px;
    margin-top: 12px;
    max-width: 240px;
  }
  
  .speaker-name {
    font-size: 16px;
  }
  
  .speaker-details {
    font-size: 12px;
  }
  
  /* New layout responsive */
  .slide-with-tools-right {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .slide-main-content {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .slide-image {
    order: -1;
    justify-content: center;
  }
  
  .image-container-small {
    width: 120px;
  }
  
  .slide-tools-sidebar {
    position: static;
    order: 2;
  }

  /* Slide with poster responsive */
  .slide-with-poster {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .slide-poster {
    position: static;
    order: -1;
    justify-content: center;
  }
  
  .poster-container {
    max-width: 200px;
  }
  
  /* Tool categories responsive */
  .tool-categories {
    gap: 16px;
  }
  
  .tool-category {
    padding: 12px;
  }
}

/* Tablet responsive */
@media (max-width: 768px) and (min-width: 561px) {
  .hero-container {
    gap: 20px;
    padding: 20px;
  }
  
  .display {
    font-size: clamp(36px, 7vw, 52px);
  }
  
  .image-container {
    max-width: 260px;
  }
  
  .hero-footer {
    bottom: 20px;
  }
}

@media (max-width: 560px) {
  .card-grid { grid-template-columns: 1fr; }
  .slide .container { padding: 32px 16px; }
  .card { padding: 20px; min-height: 140px; }
  .card h3 { font-size: 18px; }
  .card li { font-size: 14px; }
  
  /* Hero mobile */
  .hero-container {
    gap: 20px;
    padding: 16px 12px;
  }
  
  .image-container {
    max-width: 220px;
  }
  
  .display {
    font-size: clamp(28px, 8vw, 40px);
    margin-bottom: 12px;
  }
  
  .eyebrow {
    font-size: 11px;
    margin-bottom: 8px;
  }
  
  .speaker-info {
    padding: 8px 12px;
    margin-top: 10px;
    max-width: 200px;
  }
  
  .speaker-name {
    font-size: 15px;
  }
  
  .speaker-details {
    font-size: 11px;
  }
  
  .btn-lg {
    font-size: 16px;
    padding: 12px 20px;
  }
  
  /* Hero footer mobile */
  .hero-footer {
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    padding: 0 16px;
  }
  
  .study-jam-info {
    gap: 8px;
  }
  
  .study-jam-text {
    font-size: 11px;
    letter-spacing: 0.5px;
  }
  
  .tinkerhub-link {
    padding: 8px 12px;
    font-size: 11px;
    border-radius: 6px;
  }
  
  .tinkerhub-link i {
    font-size: 14px;
  }
  
  .poster-image {
    border-radius: 16px;
    box-shadow: 8px 8px 0 0 var(--fg);
  }
  
  /* Mobile decorative elements scaling */
  .image-decoration::before {
    width: 60px;
    height: 60px;
    top: -20px;
    right: -20px;
  }
  
  .image-decoration::after {
    width: 45px;
    height: 45px;
    bottom: -25px;
    left: -25px;
  }
  
  .image-container::before {
    width: 35px;
    height: 35px;
    left: -25px;
  }
  
  .image-container::after {
    width: 20px;
    height: 50px;
    right: -30px;
  }
  
  /* Reduce animation intensity on mobile */
  .image-decoration::before,
  .image-decoration::after,
  .image-container::before,
  .image-container::after {
    animation-duration: 4s;
  }
  
  /* Slide poster mobile */
  .poster-container {
    max-width: 180px;
  }
  
  .slide-poster-image {
    border-radius: 12px;
    box-shadow: 6px 6px 0 0 var(--fg);
  }
}