:root {
  --bg: #000000;
  --panel: rgba(255, 255, 255, 0.03);
  --muted: rgba(255, 255, 255, 0.55);
  --accent: #ffd780;
  --curtain-red-1: #4b0202;
  --curtain-red-2: #3a0202;
  --curtain-red-3: #250101;
  --max-width: 1100px;
}

/* Reset and base */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial;
  color: #fff;
  background: var(--bg);
}

/* Page layout */
.reveal-content {
  min-height: 200vh;
  background: linear-gradient(180deg, #000 0%, var(--bg) 40%, #111 100%);
}
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  padding: 2rem;
}
.hero h1 {
  font-size: 3rem;
  margin: 0 0 0.5rem;
  letter-spacing: 0.06em;
}
.hero p {
  margin: 0;
  opacity: 0.9;
}

.content {
  padding: 4rem 2rem;
  background: #000;
  color: #eee;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.content h2 {
  color: var(--accent);
}
.stage {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto 2.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Cards and small UI blocks */
.card-min {
  min-width: 180px;
  max-width: 320px;
  padding: 14px 18px;
  background: var(--panel);
  border-radius: 10px;
  text-align: center;
}

/* Genre selector (sticky) - keep structure minimal so Bootstrap utilities can be used */
.genre-selector {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 50;
  display: flex;
  justify-content: center;
  padding: 10px 0;
  backdrop-filter: blur(6px) saturate(120%);
}
.selector-inner {
  width: 100%;
  max-width: var(--max-width);
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.28);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.02);
}
.genre-search {
  flex: 1 1 320px;
  min-width: 180px;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.02);
  color: #fff;
}
.genre-search::placeholder {
  color: rgba(255, 255, 255, 0.5);
}
.genre-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.chip {
  background: var(--panel);
  color: #fff;
  border: 0;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
}
.chip:hover {
  background: rgba(255, 255, 255, 0.06);
}
.chip.selected {
  background: var(--accent);
  color: #111;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

.visually-hidden {
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  white-space: nowrap;
}

/* Generic placeholder area for visualizations. Keep this simple: drop a <canvas>, <svg>, or a React/Vue mount point inside. */
.placeholder {
  width: 100%;
  max-width: var(--max-width);
  min-height: 420px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.006),
    rgba(255, 255, 255, 0.003)
  );
  border: 1px dashed rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.98rem;
  margin-top: 1rem;
  padding: 1rem;
  position: relative;
}
.placeholder--compact {
  min-height: 320px;
}
.placeholder__label {
  pointer-events: none;
  color: var(--muted);
}

/* Visualization helper: let visualizations fill the placeholder container easily */
.viz-fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.viz-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 800px) {
  .placeholder {
    min-height: 320px;
    padding: 1rem;
  }
}

/* Curtain stage and visuals (kept intentionally specific) */
.curtain-stage {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}
.curtain {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  transform: translateX(0);
  transition: transform 400ms cubic-bezier(0.22, 0.9, 0.35, 1);
  pointer-events: auto;
}
.curtain.left {
  left: 0;
}
.curtain.right {
  right: 0;
}

/* Rich curtain texture kept as original intent but minimized */
.curtain::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    var(--curtain-red-1) 0%,
    var(--curtain-red-2) 35%,
    var(--curtain-red-3) 100%
  );
  box-shadow: inset 0 -60px 80px rgba(0, 0, 0, 0.6);
}
.curtain::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.05) 0 2px,
    transparent 2px 12px
  );
  opacity: 0.25;
}
.curtain.left::before,
.curtain.right::before {
  background-image: radial-gradient(
      1200px 200px at 20% 10%,
      rgba(255, 255, 255, 0.03),
      transparent 10%
    ),
    radial-gradient(
      1200px 200px at 80% 20%,
      rgba(0, 0, 0, 0.07),
      transparent 15%
    ),
    linear-gradient(
      180deg,
      var(--curtain-red-1) 0%,
      var(--curtain-red-2) 35%,
      var(--curtain-red-3) 100%
    );
  background-repeat: no-repeat;
  background-blend-mode: multiply, overlay, normal;
}

.curtain-rod {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(90deg, #2b2b2b, #111);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.6);
  z-index: 10000;
  pointer-events: none;
}

@keyframes spotlight-pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.01);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
  }
}
.curtain-spotlight {
  animation: spotlight-pulse 3000ms ease-in-out infinite;
}

.open-hint {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: 0;
  padding: 10px 14px;
  border-radius: 20px;
  font-size: 14px;
  pointer-events: auto;
  z-index: 10003;
  opacity: 0.95;
}
.curtain.open-left {
  transform: translateX(-110%);
}
.curtain.open-right {
  transform: translateX(110%);
}

.curtain-billboard {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  z-index: 10002;
  pointer-events: none;
  transition: opacity 360ms ease, transform 360ms ease;
}
.curtain-billboard .sponsor {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  opacity: 0.95;
  margin-bottom: 8px;
  text-transform: lowercase;
  letter-spacing: 0.06em;
}
.curtain-billboard .sponsor strong {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.curtain-billboard .billboard-title {
  font-size: clamp(18px, 3.4vw, 36px);
  line-height: 1.05;
  margin: 0;
  color: #fff;
  text-shadow: 0 6px 18px rgba(0, 0, 0, 0.6), 0 1px 0 rgba(255, 255, 255, 0.02);
  font-weight: 700;
  max-width: 86%;
}
.curtain-billboard .billboard-sub {
  margin-top: 8px;
  font-size: clamp(12px, 1.6vw, 16px);
  color: rgba(255, 255, 255, 0.9);
  opacity: 0.95;
}

/* custom cursor + helpers */
.curtain,
.curtain-billboard {
  cursor: none;
}
.use-custom-cursor {
  cursor: none;
}
.use-custom-cursor input,
.use-custom-cursor textarea,
.use-custom-cursor select,
.use-custom-cursor button {
  cursor: auto;
}
.custom-cursor {
  position: fixed;
  left: 0;
  top: 0;
  pointer-events: none;
  z-index: 10005;
  transform: translate(-50%, -50%);
  transition: width 160ms ease, height 160ms ease, background 160ms ease,
    opacity 160ms ease, filter 160ms ease;
  border-radius: 50%;
  opacity: 0;
}
.custom-cursor.cursor--big {
  width: 700px;
  height: 700px;
  background: radial-gradient(
    circle at 50% 40%,
    rgba(255, 254, 214, 0.75) 0%,
    rgba(255, 254, 214, 0.6) 18%,
    rgba(255, 254, 214, 0.14) 40%,
    transparent 60%
  );
  filter: blur(20px);
  mix-blend-mode: screen;
  opacity: 0.98;
}
.custom-cursor.cursor--small {
  width: 18px;
  height: 18px;
  background-color: rgba(255, 254, 214, 0.95);
  filter: none;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
  mix-blend-mode: normal;
  opacity: 0.98;
}
.custom-cursor.cursor--hidden {
  opacity: 0 !important;
}

.curtain-stage[aria-hidden="true"] .curtain-billboard {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}
.curtain-stage[aria-hidden="true"] .curtain-spotlight {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.85);
}

@media (max-width: 480px) {
  .curtain-billboard .billboard-title {
    font-size: 20px;
  }
  .curtain-billboard .sponsor {
    font-size: 12px;
  }
}
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }
}

.search-box {
  display: flex;
  gap: 10px;
  margin: 1em 0;
  width: 500px;
}

#userInput {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid #ccc;
  border-radius: 12px;
  font-size: 16px;
}

#searchBtn {
  padding: 10px 16px;
  background-color: #ffd780;
  color: #333;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

#searchBtn:hover {
  background-color: #ffd780df;
}