:root {
  color-scheme: dark;
  --bg: #111111;
  --ink: #f5f1e8;
  --accent: #722899;
  --silhouette-size: clamp(4rem, 9vw, 7.5rem);
  --silhouette-line-color: rgba(255, 255, 255, 0.95);
  --silhouette-line-strength: 0.16rem;
  --silhouette-glow-strength: 1.2rem;
  --silhouette-glow-color: rgba(255, 59, 48, 0.9);
}

@font-face {
  font-family: "Superstar M54";
  src: url("material/Superstar%20M54.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Comic Neue";
  src: url("material/fonts/ComicNeue-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: "Superstar M54", Impact, Haettenschweiler, "Arial Black", sans-serif;
}

button {
  font: inherit;
}

.stage {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background: #050505;
}

#slideImage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transform-origin: center;
  will-change: opacity, transform, filter;
}

.stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.08) 42%, rgba(0, 0, 0, 0.58));
}

.audio-launcher {
  position: absolute;
  top: clamp(0.75rem, 3vw, 2rem);
  left: clamp(0.75rem, 3vw, 2rem);
  z-index: 3;
  display: grid;
  gap: 0.45rem;
  justify-items: start;
}

.audio-prompt {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.15rem, 3vw, 2.6rem);
  font-weight: 950;
  line-height: 0.9;
  text-transform: uppercase;
  text-shadow: 0.08em 0.08em 0 var(--accent), 0 0.08em 0.35em rgba(0, 0, 0, 0.72);
}

.speaker-icon {
  width: 1.05em;
  height: 1.05em;
  overflow: visible;
  fill: var(--ink);
  stroke: var(--ink);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0.08em 0.08em 0 var(--accent)) drop-shadow(0 0.08em 0.35em rgba(0, 0, 0, 0.72));
}

.speaker-icon path:nth-child(n + 2) {
  fill: none;
}

.silhouette-buttons {
  display: grid;
  grid-template-columns: repeat(2, var(--silhouette-size));
  align-items: center;
  justify-items: center;
  gap: clamp(0.2rem, 1vw, 0.65rem);
}

.silhouette-button:nth-child(2) {
  grid-column: 1;
  grid-row: 2;
}

.silhouette-button:nth-child(3) {
  grid-column: 2;
  grid-row: 1;
}

.silhouette-button {
  width: var(--silhouette-size);
  height: var(--silhouette-size);
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  transform-origin: center bottom;
  transition: transform 160ms ease, filter 160ms ease;
}

.silhouette-button img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter:
    drop-shadow(0 0 var(--silhouette-line-strength) var(--silhouette-line-color))
    drop-shadow(0 0 calc(var(--silhouette-line-strength) * 2) var(--silhouette-line-color))
    drop-shadow(0 0 var(--silhouette-glow-strength) var(--silhouette-glow-color));
  pointer-events: none;
}

.silhouette-button:hover,
.silhouette-button.is-playing {
  transform: translateY(-0.18rem) scale(1.06);
}

.silhouette-button.is-playing img {
  filter:
    drop-shadow(0 0 calc(var(--silhouette-line-strength) * 1.5) var(--silhouette-line-color))
    drop-shadow(0 0 calc(var(--silhouette-line-strength) * 3) var(--silhouette-line-color))
    drop-shadow(0 0 calc(var(--silhouette-glow-strength) * 1.55) var(--silhouette-glow-color));
}

.title-lockup {
  position: absolute;
  left: clamp(1rem, 4vw, 3rem);
  bottom: clamp(1rem, 4vw, 3rem);
  z-index: 2;
  display: grid;
  gap: 0.35rem;
  justify-items: start;
}

.slide-tagline {
  min-height: 0.9em;
  margin: 0 0 0 0.08em;
  color: #722899;
  font-family: "Comic Neue", "Comic Sans MS", "Bradley Hand", "Segoe Print", cursive;
  font-size: clamp(2.4rem, 7vw, 6.5rem);
  font-weight: 900;
  line-height: 0.85;
  text-transform: none;
  text-shadow: 0.055em 0.055em 0 var(--ink), 0 0.12em 0.35em rgba(0, 0, 0, 0.72);
}

.slide-tagline.has-image {
  min-height: 0;
  line-height: 1;
}

.slide-tagline img {
  display: block;
  width: clamp(5rem, 14vw, 11rem);
  height: auto;
  mix-blend-mode: screen;
  filter: drop-shadow(0.35rem 0.35rem 0 var(--accent)) drop-shadow(0 0.55rem 1rem rgba(0, 0, 0, 0.45));
}

.brand {
  display: grid;
  grid-template-columns: auto auto;
  align-items: end;
  justify-items: start;
  column-gap: clamp(0.7rem, 1.8vw, 1.4rem);
  max-width: min-content;
  margin: 0;
  color: var(--ink);
  font-size: clamp(4rem, 15vw, 13rem);
  line-height: 0.78;
  letter-spacing: 0;
  text-align: left;
  text-transform: uppercase;
  text-shadow: 0.075em 0.075em 0 var(--accent), 0 0.08em 0.3em rgba(0, 0, 0, 0.72);
}

.brand span:first-child {
  grid-column: 1;
}

.brand span:last-child {
  grid-column: 1 / -1;
}

.tu-robots-logo {
  grid-column: 2;
  width: clamp(5.8rem, 13vw, 12rem);
  height: auto;
  margin-bottom: -0.03em;
  filter: drop-shadow(0.45rem 0.45rem 0 var(--accent)) drop-shadow(0 0.6rem 1.2rem rgba(0, 0, 0, 0.5));
}

#slideImage.spin-in {
  animation: riskySpin 1800ms cubic-bezier(0.13, 0.95, 0.2, 1) both;
}

#slideImage.fade-in {
  animation: calmFade 820ms ease both;
}

#slideImage.slide-pop {
  animation: slidePop 900ms cubic-bezier(0.18, 1.35, 0.32, 1) both;
}

#slideImage.slide-wobble {
  animation: slideWobble 1000ms ease both;
}

#slideImage.slide-zoom {
  animation: slideZoom 980ms cubic-bezier(0.18, 0.9, 0.22, 1) both;
}

#slideImage.slide-drop {
  animation: slideDrop 900ms cubic-bezier(0.2, 1, 0.25, 1) both;
}

#slideImage.slide-swing {
  animation: slideSwing 1050ms cubic-bezier(0.2, 1, 0.25, 1) both;
}

#slideImage.slide-flash {
  animation: slideFlash 950ms ease both;
}

@keyframes riskySpin {
  0% {
    opacity: 0;
    transform: scale(0.1) rotate(-2520deg);
    filter: blur(0.35rem) saturate(2);
  }

  62% {
    opacity: 1;
    transform: scale(1.18) rotate(44deg);
    filter: blur(0) saturate(1.55);
  }

  82% {
    transform: scale(0.94) rotate(-14deg);
  }

  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
    filter: blur(0) saturate(1);
  }
}

@keyframes calmFade {
  0% {
    opacity: 0;
    transform: scale(1.025);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slidePop {
  0% {
    opacity: 0;
    transform: scale(0.7);
    filter: saturate(2.2) contrast(1.2);
  }

  70% {
    opacity: 1;
    transform: scale(1.06);
  }

  100% {
    opacity: 1;
    transform: scale(1);
    filter: saturate(1) contrast(1);
  }
}

@keyframes slideWobble {
  0% {
    opacity: 0;
    transform: translateX(-14vw) rotate(-12deg) scale(0.96);
  }

  48% {
    opacity: 1;
    transform: translateX(2vw) rotate(5deg) scale(1.02);
  }

  72% {
    transform: translateX(-0.8vw) rotate(-2deg);
  }

  100% {
    opacity: 1;
    transform: translateX(0) rotate(0deg) scale(1);
  }
}

@keyframes slideZoom {
  0% {
    opacity: 0;
    transform: scale(1.35);
    filter: blur(0.18rem);
  }

  100% {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
}

@keyframes slideDrop {
  0% {
    opacity: 0;
    transform: translateY(-18vh) scale(0.94);
  }

  62% {
    opacity: 1;
    transform: translateY(1.5vh) scale(1.02);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes slideSwing {
  0% {
    opacity: 0;
    transform: rotate(18deg) translateY(8vh);
    transform-origin: top center;
  }

  60% {
    opacity: 1;
    transform: rotate(-6deg) translateY(0);
  }

  100% {
    opacity: 1;
    transform: rotate(0deg) translateY(0);
  }
}

@keyframes slideFlash {
  0% {
    opacity: 0;
    transform: scale(0.98);
    filter: brightness(2.8) contrast(1.4);
  }

  42% {
    opacity: 1;
    filter: brightness(1.6) contrast(1.2);
  }

  100% {
    opacity: 1;
    transform: scale(1);
    filter: brightness(1) contrast(1);
  }
}

@media (max-width: 760px) {
  :root {
    --silhouette-size: clamp(3.2rem, 18vw, 4.5rem);
    --silhouette-glow-strength: 0.75rem;
  }

  .title-lockup {
    left: 0.85rem;
    bottom: 1rem;
  }

  .slide-tagline {
    font-size: clamp(2rem, 13vw, 4rem);
  }

  .slide-tagline img {
    width: clamp(4.5rem, 28vw, 7rem);
  }

  .brand {
    font-size: clamp(4.5rem, 25vw, 7rem);
    column-gap: 0.55rem;
  }

  .tu-robots-logo {
    width: clamp(5rem, 26vw, 7rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}