:root {
  color-scheme: dark;
  --bg: #000;
  --fg: #e8e8e8;
  --muted: #a6a6a6;
  --card: rgba(255, 255, 255, 0.04);
  --card-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --ring: #7c7cff;
  --glow: 0 10px 30px rgba(124, 124, 255, 0.25);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  --radius: 16px;
  --gap: 18px;
  --container: 1280px;
  --transition: 260ms cubic-bezier(.2,.8,.2,1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg) !important; /* по умолчанию — всегда чёрный фон */
  color: var(--fg);
  overflow: hidden;
  touch-action: none;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

/* Дополнительно страхуем чёрный фон у основных контейнеров */
body, .splash, .app { background-color: #000 !important; }

/* Полный запрет любых рамок/ореолов у медиа */
img, video, canvas {
  display: block;
  border: 0 !important;
  outline: none !important;
  box-shadow: none !important;
  background: #000;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  letter-spacing: 0.2px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Заставка */
.splash {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  contain: paint;
}

/* Фон-блок с GIF, перекрывающий края (без белых швов) */
.splash__bg {
  position: absolute;
  inset: -2px; /* слегка больше экрана — убирает субпиксельные швы */
  background: #000 center center / cover no-repeat;
  user-select: none;
  pointer-events: none;
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
  border: 0 !important;
  outline: none !important;
  box-shadow: none !important;
  -webkit-tap-highlight-color: transparent;
  -webkit-mask-image: -webkit-radial-gradient(white, black);
}
@supports (-webkit-touch-callout: none) {
  .splash__bg { transform: translateZ(0) scale(1.01); }
}

.splash__skip {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid var(--border);
  color: var(--fg);
  backdrop-filter: blur(8px);
  border-radius: 999px;
  padding: 10px 14px;
  font: inherit;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
  box-shadow: var(--shadow);
}
.splash__skip:hover { transform: translateY(-1px); border-color: rgba(255,255,255,0.18); }
.splash__skip:active { transform: translateY(0); }

/* Хедер/бренд */
.header {
  position: fixed;
  top: max(16px, env(safe-area-inset-top));
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  pointer-events: none;
  z-index: 2;
}
.brand {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}
.brand__dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #9df, #79f 50%, #59f 80%);
  box-shadow: 0 0 24px rgba(120, 140, 255, 0.8), 0 0 48px rgba(120, 140, 255, 0.4) inset;
}
.brand__name {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.3px;
  color: var(--fg);
}

/* Приложение и сетка */
.app {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: calc(24px + env(safe-area-inset-top)) 20px calc(24px + env(safe-area-inset-bottom));
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 700ms cubic-bezier(.2,.8,.2,1), transform 700ms cubic-bezier(.2,.8,.2,1);
}
.app.visible {
  opacity: 1;
  transform: translateY(0);
}

.grid {
  width: 100%;
  max-width: var(--container);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: calc(var(--gap) + 2px);
  align-items: stretch;
}

/* Карточка */
.card {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
  padding: 18px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)),
    var(--card);
  border: 1px solid var(--border);
  color: var(--fg);
  text-decoration: none;
  box-shadow: var(--shadow);
  isolation: isolate;
  overflow: clip;
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.card::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: conic-gradient(from 180deg at 50% 50%, rgba(123, 117, 255, 0.15), rgba(0,0,0,0) 30%, rgba(0,0,0,0) 70%, rgba(123, 117, 255, 0.15));
  filter: blur(24px);
  opacity: 0;
  transition: opacity var(--transition);
  z-index: -1;
}
.card:hover::before { opacity: 1; }
.card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.18);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03)),
    var(--card-2);
  box-shadow: var(--glow), var(--shadow);
}
.card:active { transform: translateY(0); }

.card__icon {
  width: 48px; height: 48px; display: grid; place-items: center;
  border-radius: 12px;
  background: radial-gradient(120% 120% at 20% 20%, rgba(130,150,255,0.25), rgba(255,255,255,0.03) 60%);
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: inset 0 0 20px rgba(124, 124, 255, 0.25);
}
.card__icon svg {
  width: 26px; height: 26px;
  color: #cfd2ff;
  filter: drop-shadow(0 6px 10px rgba(124,124,255,0.3));
}

.card__title { margin: 0; font-weight: 700; font-size: 17px; letter-spacing: 0.2px; }
.card__desc  { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.35; }
.card__cta   { margin-top: 6px; color: #b8bbff; font-weight: 600; font-size: 13px; letter-spacing: 0.3px; opacity: 0.9; }

/* Фокус */
.card:focus-visible,
.splash__skip:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 14px;
}

/* Снижение анимаций */
@media (prefers-reduced-motion: reduce) {
  .app { transition: none !important; transform: none !important; opacity: 1 !important; }
}