/* ==================== Base ==================== */
html, body {
  font-family: 'Inter', sans-serif;
  background-color: #09090b; /* zinc-950 */
  color: #f4f4f5; /* zinc-100 */
}

body {
  overflow: hidden; /* presentation feel */
}

/* ==================== Slides ==================== */
.slide {
  display: none;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  animation: fadeIn 0.5s ease-out;
}

.slide.active {
  display: block;
}

.slide-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 2rem;
  max-width: 80rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .slide-wrapper {
    padding: 4rem;
  }
}

/* Layout helpers used inline on .slide-wrapper */
.slide-wrapper.justify-center { justify-content: center; }
.slide-wrapper.items-start { align-items: flex-start; }
.slide-wrapper.items-center { align-items: center; }
.slide-wrapper.text-center { text-align: center; }

/* ==================== Animations ==================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #18181b;
}
::-webkit-scrollbar-thumb {
  background: #3f3f46;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #52525b;
}

/* ==================== Deep Dive expandable hover states ==================== */
.expandable {
  border: 1px solid;
  border-radius: 0.75rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.expandable[data-variant="good"]:not(.is-open) {
  background-color: rgba(34, 197, 94, 0.05);
  border-color: rgba(34, 197, 94, 0.2);
}
.expandable[data-variant="good"]:not(.is-open):hover {
  border-color: rgba(34, 197, 94, 0.4);
}

.expandable[data-variant="bad"]:not(.is-open) {
  background-color: rgba(239, 68, 68, 0.05);
  border-color: rgba(239, 68, 68, 0.2);
}
.expandable[data-variant="bad"]:not(.is-open):hover {
  border-color: rgba(239, 68, 68, 0.4);
}

.expandable[data-variant="neutral"]:not(.is-open) {
  background-color: rgba(59, 130, 246, 0.05);
  border-color: rgba(59, 130, 246, 0.2);
}
.expandable[data-variant="neutral"]:not(.is-open):hover {
  border-color: rgba(59, 130, 246, 0.4);
}

.expandable.is-open {
  background-color: #18181b; /* zinc-900 */
  border-color: rgba(63, 63, 70, 0.5);
}

.expandable.is-open .exp-readmore {
  display: none;
}

.expandable.is-open .exp-chevron {
  transform: rotate(180deg);
}

.exp-chevron {
  transition: transform 0.2s ease;
}

/* ==================== Pulse helper (Tailwind already provides .animate-pulse) ==================== */