/* Animated Text Shimmer — professional polish */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0c0c0e;
  --grid: rgba(255, 255, 255, 0.04);
  --font: "Inter", system-ui, -apple-system, sans-serif;

  /* Soft metallic band — tight highlight, smooth falloff */
  --gradient: linear-gradient(
    105deg,
    hsl(220 6% 38%) 0%,
    hsl(220 6% 38%) 38%,
    hsl(220 8% 58%) 45%,
    hsl(0 0% 96%) 50%,
    hsl(220 8% 58%) 55%,
    hsl(220 6% 38%) 62%,
    hsl(220 6% 38%) 100%
  );
}

html,
body {
  height: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

/* Film grain */
.grain {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px 180px;
}

.stage {
  position: relative;
  isolation: isolate;
  width: 100%;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  background: var(--bg);
}

/* Graph grid with soft falloff */
.grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 52px 52px;
  background-position: center center;
  mask-image: radial-gradient(
    ellipse 62% 58% at 50% 50%,
    #000 15%,
    transparent 72%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 62% 58% at 50% 50%,
    #000 15%,
    transparent 72%
  );
}

.lines {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55em;
}

/*
  Core technique (jh3yy):
  background-clip: text + transparent color + wide gradient + position sweep
*/
.txt {
  --duration: calc(var(--text-length, 12) * 0.12s);
  --delay: 0s;

  margin: 0;
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.03em;
  white-space: nowrap;
  font-feature-settings: "ss01" on, "cv11" on;

  color: #0000;
  -webkit-text-fill-color: transparent;

  background: var(--gradient) 0 0 / 280% 100%;
  background-repeat: no-repeat;

  -webkit-background-clip: text;
  background-clip: text;

  animation: shim var(--duration) linear infinite;
  animation-delay: var(--delay);

  /* Soft lift so type reads off the grid */
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.35));
}

/* Staggered phases — lines don’t pulse in lockstep */
.lines .txt:nth-child(1) {
  --delay: 0s;
}

.lines .txt:nth-child(2) {
  --delay: 0.35s;
}

.lines .txt:nth-child(3) {
  --delay: 0.7s;
}

@keyframes shim {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: 0% 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .txt {
    animation: none;
    background-position: 42% 0;
  }
}

@media (max-width: 480px) {
  .txt {
    font-size: clamp(1.15rem, 5.5vw, 1.4rem);
  }
}