/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #111216;
  color: #eeeeee;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
}

/* Presentation Container */
.deck-container {
  position: relative;
  width: 100%;
  height: 100%;
}

/* Slide Defaults (Widescreen 16:9 feel) */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 8% 10%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
  transform: scale(0.95);
}

/* Active Slide State */
.slide.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

/* Slide Typography */
h1 {
  font-size: 4rem;
  margin-bottom: 2rem;
  color: #9d4edd;
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: #e0aaff;
}

p {
  font-size: 1.5rem;
  line-height: 1.6;
  color: #c8b6ff;
  max-width: 800px;
}

ul {
  margin-top: 1rem;
  margin-left: 2rem;
}

li {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
  color: #e2e2e2;
}

/* Layout Variations */
.slide.title-slide {
  align-items: center;
  text-align: center;
  justify-content: center;
}

/* Presenter Controls UI Bar */
.controls-bar {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 15px;
  background: rgba(36, 37, 45, 0.85);
  padding: 10px 20px;
  border-radius: 30px;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  z-index: 10;
}

.nav-btn {
  background: none;
  border: none;
  color: #eeeeee;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 5px;
  transition: background 0.2s;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.slide-counter {
  font-size: 1rem;
  min-width: 60px;
  text-align: center;
  color: #a0a0a0;
}

/* Progress Indicator Bar */
.progress-container {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.05);
  z-index: 10;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #7b2cbf, #9d4edd);
  transition: width 0.3s ease;
}
.no-padding {
  padding-left: 0;
  padding-right: 0;
}