/* Shiny button effect (vanilla port of the ShinyButton component) — applied to the hero CTAs */
@property --gleam-angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@property --gleam-angle-offset { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@property --gleam-percent { syntax: "<percentage>"; initial-value: 5%; inherits: false; }
@property --gleam-shine { syntax: "<color>"; initial-value: white; inherits: false; }

.shiny-btn {
  --gleam-base: #0B0B0B;
  --gleam-inset: #1a1818;
  --gleam-label: #F2EFEB;
  --gleam-accent: #F2EFEB;
  --gleam-accent-soft: #FFFFFF;
  --sweep: 3s;
  --ease: 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  --shadow-size: 2px;

  isolation: isolate;
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--gleam-label);
  background:
    linear-gradient(var(--gleam-base), var(--gleam-base)) padding-box,
    conic-gradient(
      from calc(var(--gleam-angle) - var(--gleam-angle-offset)),
      transparent,
      var(--gleam-accent) var(--gleam-percent),
      var(--gleam-shine) calc(var(--gleam-percent) * 2),
      var(--gleam-accent) calc(var(--gleam-percent) * 3),
      transparent calc(var(--gleam-percent) * 4)
    ) border-box;
  box-shadow: inset 0 0 0 1px var(--gleam-inset);
  transition: var(--ease);
  transition-property: var(--gleam-angle-offset), var(--gleam-percent), var(--gleam-shine);
}

.shiny-btn::before,
.shiny-btn::after,
.shiny-btn span::before {
  content: "";
  pointer-events: none;
  position: absolute;
  inset-inline-start: 50%;
  inset-block-start: 50%;
  translate: -50% -50%;
  z-index: -1;
}

.shiny-btn:active { translate: 0 1px; }

.shiny-btn::before {
  --size: calc(100% - var(--shadow-size) * 3);
  --position: 2px;
  --space: calc(var(--position) * 2);
  width: var(--size);
  height: var(--size);
  background: radial-gradient(
    circle at var(--position) var(--position),
    white calc(var(--position) / 4),
    transparent 0
  ) padding-box;
  background-size: var(--space) var(--space);
  background-repeat: space;
  mask-image: conic-gradient(
    from calc(var(--gleam-angle) + 45deg),
    black,
    transparent 10% 90%,
    black
  );
  border-radius: inherit;
  opacity: 0.4;
}

.shiny-btn::after {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(-50deg, transparent, var(--gleam-accent), transparent);
  mask-image: radial-gradient(circle at bottom, transparent 40%, black);
  opacity: 0.6;
}

.shiny-btn span { z-index: 1; }

.shiny-btn span::before {
  --size: calc(100% + 1rem);
  width: var(--size);
  height: var(--size);
  box-shadow: inset 0 -1ex 2rem 4px var(--gleam-accent);
  opacity: 0;
  transition: opacity var(--ease);
  animation: breathe 4.5s linear infinite;
}

.shiny-btn,
.shiny-btn::before,
.shiny-btn::after {
  animation:
    gleam-sweep var(--sweep) linear infinite,
    gleam-sweep calc(var(--sweep) / 0.4) reverse paused;
  animation-composition: add;
}

.shiny-btn:is(:hover, :focus-visible) {
  --gleam-percent: 20%;
  --gleam-angle-offset: 95deg;
  --gleam-shine: var(--gleam-accent-soft);
}

.shiny-btn:is(:hover, :focus-visible),
.shiny-btn:is(:hover, :focus-visible)::before,
.shiny-btn:is(:hover, :focus-visible)::after {
  animation-play-state: running;
}

.shiny-btn:is(:hover, :focus-visible) span::before { opacity: 1; }

@keyframes gleam-sweep { to { --gleam-angle: 360deg; } }
@keyframes breathe { from, to { scale: 1; } 50% { scale: 1.2; } }

@media (prefers-reduced-motion: reduce) {
  .shiny-btn, .shiny-btn::before, .shiny-btn::after, .shiny-btn span::before { animation: none !important; }
  .shiny-btn:is(:hover, :focus-visible) span::before { opacity: 0; }
  .shiny-btn { transition: none; }
}