/* ============================================================
   UV Minigolf Kladno – Animace a přechody
   ============================================================ */

/* ─── Klíčové snímky ─────────────────────────────────────────── */

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-down {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slide-in-right {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slide-in-left {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}

/* Pulzování pro online tečku / UV efekt */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.7); }
  50%       { opacity: 0.8; box-shadow: 0 0 0 6px rgba(57, 255, 20, 0); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 10px currentColor; }
  50%       { box-shadow: 0 0 25px currentColor, 0 0 50px currentColor; }
}

/* Scroll hint arrow */
@keyframes bounce-scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* Plovoucí efekt – hero elementy */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

/* Rotace */
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Glitch efekt pro UV neon texty */
@keyframes glitch {
  0% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  80% { transform: translate(2px, -2px); }
  100% { transform: translate(0); }
}

/* Neon flicker */
@keyframes neon-flicker {
  0%, 100% { opacity: 1; }
  92%       { opacity: 1; }
  93%       { opacity: 0.7; }
  94%       { opacity: 1; }
  96%       { opacity: 0.6; }
  97%       { opacity: 1; }
}

/* Particle pohyb nahorů */
@keyframes particle-rise {
  0%   { transform: translateY(0) translateX(0) scale(1); opacity: 1; }
  100% { transform: translateY(-200px) translateX(var(--drift)) scale(0); opacity: 0; }
}

/* Shimmer přes gradient */
@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

/* Progress bar fill */
@keyframes fill-bar {
  from { width: 0; }
  to   { width: var(--fill-width, 100%); }
}

/* ─── Scroll-reveal třídy ────────────────────────────────────── */
/* Výchozí stav – před animací */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.reveal--left {
  transform: translateX(-30px);
}

.reveal.reveal--right {
  transform: translateX(30px);
}

.reveal.reveal--scale {
  transform: scale(0.92);
}

/* Stav po triggeru */
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Zpoždění */
.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }
.reveal-delay-5 { transition-delay: 500ms; }

/* ─── Utility animace ────────────────────────────────────────── */
.animate-fade-in      { animation: fade-in 0.5s ease forwards; }
.animate-fade-in-up   { animation: fade-in-up 0.6s ease forwards; }
.animate-float        { animation: float 4s ease-in-out infinite; }
.animate-pulse-dot    { animation: pulse-dot 2s ease-in-out infinite; }
.animate-pulse-glow   { animation: pulse-glow 2s ease-in-out infinite; }
.animate-neon-flicker { animation: neon-flicker 5s ease-in-out infinite; }
.animate-spin-slow    { animation: spin-slow 10s linear infinite; }

/* ─── UV Particles canvas ────────────────────────────────────── */
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.6;
}

/* ─── Hover efekty ───────────────────────────────────────────── */
.hover-lift {
  transition: transform var(--transition-base);
}
.hover-lift:hover {
  transform: translateY(-4px);
}

.hover-glow-gold {
  transition: box-shadow var(--transition-base);
}
.hover-glow-gold:hover {
  box-shadow: var(--glow-gold);
}

/* ─── Skeleton loading ───────────────────────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface-2) 0%,
    var(--color-surface-3) 50%,
    var(--color-surface-2) 100%
  );
  background-size: 800px 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

/* ─── Page transition ────────────────────────────────────────── */
.page-enter {
  animation: fade-in-up 0.5s ease forwards;
}

/* ─── Loader spinner ─────────────────────────────────────────── */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-surface-3);
  border-top-color: var(--color-neon-gold);
  border-radius: 50%;
  animation: spin-slow 0.8s linear infinite;
}

/* Redukování pohybu – pro uživatele s citlivostí */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}