:root {
  --bg-start: #05070f;
  --bg-mid: #0b1328;
  --bg-end: #10142e;
  --text: #ecf2ff;
  --muted: #b7c9ff;
  --accent: #e1a64f;
  --accent-hover: #c38837;
  --card: rgba(8, 13, 31, 0.72);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: "Trebuchet MS", "Segoe UI", Tahoma, sans-serif;
  background:
    radial-gradient(circle at 10% 15%, rgba(54, 70, 145, 0.34), transparent 40%),
    radial-gradient(circle at 88% 78%, rgba(22, 34, 84, 0.4), transparent 45%),
    linear-gradient(165deg, var(--bg-start), var(--bg-mid), var(--bg-end));
  color: var(--text);
  overflow: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.fog {
  position: absolute;
  width: 155vmax;
  height: 75vmax;
  left: -30vmax;
  border-radius: 50%;
  opacity: 0.16;
  filter: blur(26px);
  background: radial-gradient(ellipse at center, rgba(207, 222, 255, 0.38) 0%, rgba(120, 151, 242, 0.18) 45%, transparent 70%);
  transition: opacity 500ms ease;
}

.fog-a {
  top: -28vmax;
  animation: fogDriftA 20s ease-in-out infinite alternate;
}

.fog-b {
  top: 8vmax;
  animation: fogDriftB 24s ease-in-out infinite alternate-reverse;
}

.fog-c {
  top: 38vmax;
  animation: fogDriftC 27s ease-in-out infinite alternate;
}

.spotlight {
  position: absolute;
  width: 110vmax;
  height: 110vmax;
  top: -84vmax;
  left: -44vmax;
  transform-origin: 50% 50%;
  opacity: 0;
  transition: opacity 380ms ease;
  mix-blend-mode: screen;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(255, 244, 213, 0.27) 0%, rgba(255, 233, 178, 0.16) 23%, rgba(255, 230, 169, 0.08) 35%, transparent 58%);
  filter: blur(2px);
}

.app {
  position: relative;
  isolation: isolate;
  z-index: 2;
  width: min(90vw, 680px);
  padding: 2rem;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid rgba(195, 211, 255, 0.28);
  box-shadow: 0 16px 55px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(7px);
  text-align: center;
}

.app::before,
.app::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  pointer-events: none;
  z-index: -1;
}

.app::before {
  opacity: 0;
  background: conic-gradient(from 0deg, transparent, rgba(255, 214, 145, 0.84), transparent 42%, rgba(136, 172, 255, 0.92), transparent 78%);
}

.app::after {
  opacity: 0;
  box-shadow: 0 0 35px rgba(141, 171, 255, 0.62);
}

h1 {
  margin-top: 0;
  letter-spacing: 0.04em;
}

.status {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.quote {
  min-height: 4rem;
  font-size: 1.15rem;
  line-height: 1.6;
  margin: 1.5rem 0;
  transition: transform 0.3s ease, opacity 0.3s ease, letter-spacing 0.3s ease;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 0.75rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

button:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

button:disabled {
  cursor: wait;
  opacity: 0.85;
}

.app.is-casting::before {
  opacity: 1;
  animation: spin 4s linear infinite;
}

.app.is-casting::after {
  opacity: 1;
  animation: pulseGlow 1.8s ease-in-out infinite;
}

.app.is-casting .quote {
  opacity: 0.76;
  transform: scale(1.015);
  letter-spacing: 0.07em;
  text-shadow: 0 0 22px rgba(183, 205, 255, 0.8);
}

body.is-casting .fog {
  opacity: 0.42;
}

body.is-casting .spotlight {
  opacity: 1;
  animation: spotlightSweep 3.6s cubic-bezier(0.32, 0, 0.22, 1) infinite;
}

.app.is-revealed .quote {
  animation: quoteReveal 540ms ease;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulseGlow {
  50% {
    box-shadow: 0 0 60px rgba(253, 206, 129, 0.42);
  }
}

@keyframes quoteReveal {
  0% {
    opacity: 0;
    transform: translateY(8px) scale(0.99);
  }

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

@keyframes fogDriftA {
  from {
    transform: translate3d(-4vmax, -1vmax, 0) scale(0.98);
  }

  to {
    transform: translate3d(8vmax, 2vmax, 0) scale(1.07);
  }
}

@keyframes fogDriftB {
  from {
    transform: translate3d(5vmax, -1vmax, 0) scale(1.03);
  }

  to {
    transform: translate3d(-7vmax, 3vmax, 0) scale(0.97);
  }
}

@keyframes fogDriftC {
  from {
    transform: translate3d(-6vmax, 1vmax, 0) scale(1.01);
  }

  to {
    transform: translate3d(4vmax, -2vmax, 0) scale(1.05);
  }
}

@keyframes spotlightSweep {
  0% {
    transform: rotate(-18deg) translateX(-6vmax) translateY(0);
  }

  50% {
    transform: rotate(8deg) translateX(10vmax) translateY(3vmax);
  }

  100% {
    transform: rotate(-10deg) translateX(-3vmax) translateY(1vmax);
  }
}

@media (max-width: 520px) {
  .app {
    padding: 1.35rem;
  }

  .quote {
    font-size: 1.02rem;
    min-height: 4.8rem;
  }

  .spotlight {
    width: 138vmax;
    height: 138vmax;
    top: -98vmax;
    left: -58vmax;
  }
}