@media screen and (max-width: 560px) {
  .t-popup__close {
    background: #000 !important;
  }

  .t-popup__close-icon g {
    fill: #d60d3b !important;
  }
}

/* Фирменный курсор поверх любых элементов сайта. */
@media (pointer: fine) {
  html,
  body,
  body *,
  body *::before,
  body *::after {
    cursor: url("https://static.tildacdn.com/tild3661-6230-4636-b938-663264363538/__2.webp") 0 0, auto !important;
  }
}

/* Облачная панель сэндвич-меню. */
.t450 {
  background-color: #b9def4 !important;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.04)),
    url("https://raw.githack.com/PNK109/nav_audio/course-geocities-performance-v1/assets/sky-tile.jpg") !important;
  background-repeat: repeat !important;
  background-position: center top !important;
  background-size: auto, 640px 640px !important;
}

.t450__close-button {
  background: transparent !important;
}

.t450__close_icon {
  color: #0b1833 !important;
}

.t450__logoimg {
  mix-blend-mode: screen;
}

.t450__list_item .t-menu__link-item {
  color: #0b1833 !important;
  text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.88);
}

/* Защита визуальных элементов; текст остаётся выделяемым. */
img,
.t-img,
.t-bgimg,
.tn-atom img,
.t396__elem img {
  user-select: none !important;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

body,
p,
span,
h1,
h2,
h3,
h4,
h5,
h6,
.tn-atom {
  user-select: text !important;
  -webkit-user-select: text !important;
}

/* Доступность. */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Прозрачная адаптивная лупа без чёрного круга. */
.t985__search-widget-icon {
  background: transparent !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  mix-blend-mode: difference;
}

.t985__search-widget-icon svg path {
  stroke: #fff !important;
}

.t985__search-widget-button:focus-visible {
  outline: 2px solid #fff !important;
  outline-offset: 3px !important;
}

/* Компенсация округления высоты iframe на стыке КЛ и футера. */
.kl-t123-embed {
  margin-bottom: -4px !important;
}

/* На мобильных фон начинается без внешнего отступа; сдвиг живёт внутри iframe. */
@media screen and (max-width: 680px) {
  .kl-t123-embed {
    padding-top: 0 !important;
  }
}

/* Процедурная пыль: под bloom и зерном. */
#nav-site-dust {
  position: fixed;
  z-index: 2147483644;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  pointer-events: none;
  opacity: 0.34;
  mix-blend-mode: screen;
  transform: translateZ(0);
  contain: strict;
}

/* Мягкий оптический bloom: поверх пыли, под зерном. */
body.t-body::after {
  content: "";
  position: fixed;
  z-index: 2147483645;
  inset: 0;
  pointer-events: none;
  background: rgba(255, 244, 232, 0.026);
  -webkit-backdrop-filter: blur(1.25px) brightness(1.065) saturate(1.025);
  backdrop-filter: blur(1.25px) brightness(1.065) saturate(1.025);
  mix-blend-mode: screen;
  opacity: 0.22;
  transform: translateZ(0);
}

/* Финальное живое плёночное зерно поверх всего сайта. */
#nav-site-film-grain {
  position: fixed;
  z-index: 2147483646;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  pointer-events: none;
  opacity: 0.215 !important;
  mix-blend-mode: soft-light;
  image-rendering: pixelated;
  transform: translateZ(0);
  contain: strict;
}

/* Локальный слой страницы курса не должен суммироваться с глобальным. */
#kl-page-film-grain {
  display: none !important;
}

@media screen and (max-width: 680px) {
  #nav-site-dust {
    opacity: 0.28;
  }

  #nav-site-film-grain {
    opacity: 0.18 !important;
  }

  body.t-body::after {
    -webkit-backdrop-filter: blur(0.8px) brightness(1.045);
    backdrop-filter: blur(0.8px) brightness(1.045);
    opacity: 0.17;
  }
}

@media (prefers-reduced-motion: reduce) {
  #nav-site-dust {
    opacity: 0.16;
  }

  #nav-site-film-grain {
    opacity: 0.145 !important;
  }
}

/* Сквозной минимальный аудиоплеер: под постобработкой, поверх контента. */
#nav-global-audio-player {
  position: fixed;
  z-index: 2147483643;
  left: 14px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
  font-family: Arial, Helvetica, sans-serif;
}
#nav-global-audio-player .nav-audio-toggle {
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 50%;
  color: rgba(255,255,255,0.48);
  background: rgba(6,8,12,0.18);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
  font: 11px/28px Arial, sans-serif;
  text-align: center;
  pointer-events: auto;
  opacity: 0.58;
  transition: opacity .25s ease, color .25s ease, background .25s ease, transform .25s ease;
}
#nav-global-audio-player .nav-audio-toggle:hover,
#nav-global-audio-player .nav-audio-toggle:focus-visible {
  opacity: 1;
  color: rgba(255,255,255,0.92);
  background: rgba(6,8,12,0.34);
  transform: scale(1.04);
  outline: none;
}
#nav-global-audio-player .nav-audio-title {
  max-width: min(320px, calc(100vw - 78px));
  padding: 6px 9px;
  border-radius: 3px;
  color: rgba(255,255,255,0.78);
  background: rgba(6,8,12,0.20);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  font-size: 10px;
  line-height: 1.25;
  letter-spacing: .025em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transform: translateX(-5px);
  transition: opacity .65s ease, transform .65s ease;
}
#nav-global-audio-player .nav-audio-title.is-visible {
  opacity: .78;
  transform: translateX(0);
}
#nav-global-audio {
  display: none !important;
}
@media screen and (max-width: 680px) {
  #nav-global-audio-player {
    left: 10px;
    bottom: 10px;
  }
  #nav-global-audio-player .nav-audio-toggle {
    width: 28px;
    height: 28px;
    line-height: 26px;
    opacity: .52;
  }
}