/* ============================================================
   Animations — grain, scanlines, scroll-reveal, glitch, keyframes
   ============================================================ */

/* ---- Зерно / шум поверх всего ---- */
.grain {
  position: fixed;
  inset: -50%;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 0.5s steps(2) infinite;
}
@keyframes grain {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-3%, 2%); }
  50%  { transform: translate(2%, -4%); }
  75%  { transform: translate(-2%, 3%); }
  100% { transform: translate(3%, -2%); }
}

/* ---- Тонкие развёрточные линии (CRT) ---- */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: 0.35;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 2px,
    rgba(0,0,0,0.25) 3px
  );
  mix-blend-mode: multiply;
}

/* ---- Кастомный курсор ---- */
.cursor {
  position: fixed;
  top: 0; left: 0;
  width: 26px; height: 26px;
  border: 1px solid var(--acid);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--ease), height 0.25s var(--ease),
              background 0.25s var(--ease), border-color 0.25s var(--ease);
  mix-blend-mode: difference;
}
.cursor.is-hot { width: 56px; height: 56px; background: var(--acid); border-color: var(--acid); }
@media (hover: none), (max-width: 760px) { .cursor { display: none; } }

/* ---- Scroll reveal базовое ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--delay, 0s);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---- Reveal масок для строк заголовка ---- */
.hero__title .line > span {
  transform: translateY(110%);
  transition: transform 1s var(--ease);
  transition-delay: var(--delay, 0s);
}
.hero.is-ready .hero__title .line > span { transform: translateY(0); }

/* ---- Glitch на наведение по логотипу/заголовку ---- */
.glitch { position: relative; display: inline-block; }
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  clip-path: inset(0 0 0 0);
  opacity: 0;
}
.glitch:hover::before {
  opacity: 0.9;
  color: var(--cyan);
  animation: glitch-a 0.4s steps(2) infinite;
}
.glitch:hover::after {
  opacity: 0.9;
  color: var(--warn);
  animation: glitch-b 0.4s steps(2) infinite;
}
@keyframes glitch-a {
  0%   { transform: translate(0); clip-path: inset(0 0 70% 0); }
  50%  { transform: translate(-3px, -2px); clip-path: inset(40% 0 20% 0); }
  100% { transform: translate(2px, 1px); clip-path: inset(80% 0 0 0); }
}
@keyframes glitch-b {
  0%   { transform: translate(0); clip-path: inset(60% 0 10% 0); }
  50%  { transform: translate(3px, 2px); clip-path: inset(10% 0 60% 0); }
  100% { transform: translate(-2px, -1px); clip-path: inset(30% 0 40% 0); }
}

/* ---- Прочие keyframes ---- */
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.9); opacity: 0.3; }
}
@keyframes scan {
  0%   { transform: translateY(-120%); }
  100% { transform: translateY(320%); }
}

/* ---- Marquee-заголовок (большой бегущий текст в drop) ---- */
.bigmarquee {
  overflow: hidden;
  white-space: nowrap;
  border-block: 1px solid var(--line);
  padding-block: 0.6rem;
}
.bigmarquee__track {
  display: inline-flex;
  gap: 2rem;
  animation: ticker 22s linear infinite;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  font-size: clamp(1.6rem, 4vw, 3rem);
}
.bigmarquee__track em { font-style: normal; -webkit-text-stroke: 1.2px var(--ink); color: transparent; }