/* ============================================
   LOGO ANIMATION — премиум-эффекты
   ============================================ */

.logo {
  position: relative;
  cursor: pointer;
  user-select: none;
}

/* === МОЛНИЯ (значок ⚡) === */
.logo__mark {
  position: relative;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s ease;
  animation: logoPulse 3s ease-in-out infinite;
}

/* Пульсация свечения */
@keyframes logoPulse {
  0%, 100% {
    box-shadow:
      0 4px 14px rgba(77, 159, 255, 0.4),
      0 0 0 0 rgba(77, 159, 255, 0);
  }
  50% {
    box-shadow:
      0 6px 20px rgba(77, 159, 255, 0.55),
      0 0 24px 4px rgba(77, 159, 255, 0.25);
  }
}

/* Шиммер-блик (бежит по молнии) */
.logo__mark::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -100%;
  width: 60%;
  height: 200%;
  background: linear-gradient(
    105deg,
    transparent 30%,
    rgba(255, 255, 255, 0.5) 50%,
    transparent 70%
  );
  transform: rotate(25deg);
  animation: logoShimmer 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes logoShimmer {
  0%, 60% { left: -100%; }
  70% { left: 100%; }
  100% { left: 100%; }
}

/* Электрический «всплеск» — раз в 7 секунд */
.logo__mark::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  border: 1px solid var(--accent-2);
  opacity: 0;
  animation: logoSpark 7s ease-in-out infinite;
  pointer-events: none;
}

@keyframes logoSpark {
  0%, 85%, 100% {
    opacity: 0;
    transform: scale(1);
  }
  88% {
    opacity: 1;
    transform: scale(1.05);
  }
  92% {
    opacity: 0;
    transform: scale(1.25);
  }
  94% {
    opacity: 0.8;
    transform: scale(1.1);
  }
  96% {
    opacity: 0;
    transform: scale(1.3);
  }
}

/* === HOVER ЭФФЕКТЫ === */
.logo:hover .logo__mark {
  transform: rotate(-15deg) scale(1.08);
  animation-play-state: paused;
  box-shadow:
    0 8px 28px rgba(77, 159, 255, 0.7),
    0 0 40px rgba(0, 229, 212, 0.4);
}

.logo:hover .logo__mark::before {
  animation: logoShimmerFast 0.6s linear;
}

@keyframes logoShimmerFast {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Внутренний значок ⚡ — лёгкая прокачка */
.logo__mark > * {
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
}
.logo:hover .logo__mark > * {
  transform: scale(1.15);
}

/* === ТЕКСТ «Skupka.kz» === */
.logo__text {
  display: inline-block;
  background: linear-gradient(
    135deg,
    var(--text) 0%,
    var(--text) 50%,
    var(--accent) 100%
  );
  background-size: 200% 100%;
  background-position: 0% 50%;
  -webkit-background-clip: text;
  background-clip: text;
  transition: background-position 0.6s ease;
}

.logo:hover .logo__text {
  background-position: 100% 50%;
}

/* Точка между Skupka и kz — пульсирует */
.logo__dot {
  display: inline-block;
  position: relative;
  animation: dotBlink 2s ease-in-out infinite;
  transform-origin: center;
}

@keyframes dotBlink {
  0%, 90%, 100% {
    opacity: 1;
    transform: scale(1);
    text-shadow: 0 0 8px rgba(77, 159, 255, 0.5);
  }
  45% {
    opacity: 0.4;
    transform: scale(0.85);
    text-shadow: 0 0 16px rgba(77, 159, 255, 1);
  }
}

/* === ПОЯВЛЕНИЕ ПРИ ЗАГРУЗКЕ СТРАНИЦЫ === */
@keyframes logoEntry {
  0% {
    opacity: 0;
    transform: scale(0) rotate(-180deg);
  }
  60% {
    transform: scale(1.15) rotate(10deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0);
  }
}

.logo__mark {
  animation:
    logoEntry 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) backwards,
    logoPulse 3s ease-in-out infinite 0.8s;
}

/* Буквы «Skupka» появляются по одной */
.logo__text {
  position: relative;
}

.logo__text-letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(-12px);
  animation: letterDrop 0.4s ease forwards;
}
.logo__text-letter:nth-child(1) { animation-delay: 0.3s; }
.logo__text-letter:nth-child(2) { animation-delay: 0.36s; }
.logo__text-letter:nth-child(3) { animation-delay: 0.42s; }
.logo__text-letter:nth-child(4) { animation-delay: 0.48s; }
.logo__text-letter:nth-child(5) { animation-delay: 0.54s; }
.logo__text-letter:nth-child(6) { animation-delay: 0.60s; }
.logo__text-letter:nth-child(7) { animation-delay: 0.66s; }
.logo__text-letter:nth-child(8) { animation-delay: 0.72s; }
.logo__text-letter:nth-child(9) { animation-delay: 0.78s; }

@keyframes letterDrop {
  0% {
    opacity: 0;
    transform: translateY(-12px);
  }
  60% {
    transform: translateY(3px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === ЛОГОТИП В ФУТЕРЕ — без анимации появления, только пульс === */
.logo--footer .logo__mark {
  animation: logoPulse 3s ease-in-out infinite;
}
.logo--footer .logo__text-letter {
  opacity: 1;
  animation: none;
  transform: none;
}

/* === КЛИК-РИПЛ (волна при нажатии) === */
.logo:active .logo__mark {
  transform: scale(0.92) rotate(-8deg);
  transition: transform 0.1s ease;
}

/* Уважение к настройкам пользователя */
@media (prefers-reduced-motion: reduce) {
  .logo__mark,
  .logo__mark::before,
  .logo__mark::after,
  .logo__dot,
  .logo__text-letter {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}