/* Intro identity layer: rare signal ruptures around a permanently readable core. */

.screen--intro .boot-terminal--intro {
  isolation: isolate;
  border-color: rgba(var(--accent-rgb), 0.72);
  background:
    linear-gradient(98deg, rgba(var(--accent-rgb), 0.13), transparent 17% 78%, rgba(var(--paper-rgb), 0.045)),
    repeating-linear-gradient(
      90deg,
      transparent 0 63px,
      rgba(var(--accent-rgb), 0.025) 64px 65px
    ),
    rgba(var(--night-rgb), 0.94);
  box-shadow:
    -9px 0 0 -7px var(--paper),
    9px 0 0 -7px var(--accent),
    0 0 0 1px rgba(var(--paper-rgb), 0.04),
    0 0 66px rgba(var(--accent-rgb), 0.13),
    inset 0 0 100px rgba(0, 0, 0, 0.7);
  animation: intro-terminal-lock 520ms steps(4, end) both;
}

.screen--intro .boot-terminal--intro::before {
  z-index: 5;
  inset: 0;
  width: auto;
  height: auto;
  border: 0;
  background:
    linear-gradient(var(--paper), var(--paper)) 18px 0 / 122px 2px no-repeat,
    linear-gradient(var(--accent), var(--accent)) calc(100% - 168px) 0 / 150px 2px no-repeat,
    linear-gradient(var(--accent), var(--accent)) 0 28px / 2px 92px no-repeat,
    linear-gradient(var(--paper), var(--paper)) 100% calc(100% - 142px) / 2px 124px no-repeat,
    linear-gradient(var(--accent), var(--accent)) 0 100% / 84px 2px no-repeat,
    linear-gradient(var(--paper), var(--paper)) calc(100% - 116px) 100% / 98px 2px no-repeat;
  content: "";
  filter: none;
  opacity: 0.94;
  pointer-events: none;
  animation: none;
}

.screen--intro .boot-terminal--intro::after {
  z-index: 4;
  inset: 9px -8px -8px 9px;
  width: auto;
  height: auto;
  border: 1px solid rgba(var(--accent-rgb), 0.16);
  background: none;
  opacity: 0.9;
  pointer-events: none;
}

.intro-fx {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.intro-fx::before {
  position: absolute;
  top: 17px;
  left: 20px;
  width: calc(100% - 40px);
  overflow: hidden;
  color: rgba(var(--accent-rgb), 0.3);
  content: "00110100 00110000 00110110 // BR0KE_SIGNAL // RECEIPT_UNRESOLVED // 000000";
  font: 800 11px/1.2 "Courier New", monospace;
  letter-spacing: 0.17em;
  text-overflow: clip;
  white-space: nowrap;
  animation: intro-binary-skip 6.2s steps(1, end) infinite;
}

.intro-fx::after {
  position: absolute;
  right: 34px;
  bottom: 24px;
  width: min(250px, 36%);
  height: 20px;
  background: repeating-linear-gradient(
    90deg,
    rgba(var(--paper-rgb), 0.54) 0 2px,
    transparent 2px 5px,
    rgba(var(--accent-rgb), 0.58) 5px 7px,
    transparent 7px 12px
  );
  content: "";
  opacity: 0.33;
  transform-origin: right center;
  animation: intro-barcode-hit 5.8s steps(1, end) infinite;
}

.intro-fx__eyes {
  position: absolute;
  top: 50%;
  right: -7%;
  color: transparent;
  font: 900 clamp(180px, 31vw, 510px) / 0.8 Arial, Helvetica, sans-serif;
  letter-spacing: -0.14em;
  opacity: 0.14;
  -webkit-text-stroke: 1px rgba(var(--accent-rgb), 0.72);
  text-shadow:
    16px 0 rgba(var(--accent-rgb), 0.08),
    -16px 0 rgba(var(--paper-rgb), 0.04);
  transform: translate3d(0, -50%, 0) rotate(-4deg);
  animation: intro-eyes-desync 7s steps(1, end) infinite;
}

.intro-fx i {
  position: absolute;
  left: -8%;
  width: 116%;
  height: 11px;
  background:
    linear-gradient(
      90deg,
      transparent 0 8%,
      rgba(var(--paper-rgb), 0.8) 8% 19%,
      transparent 19% 46%,
      rgba(var(--accent-rgb), 0.78) 46% 64%,
      transparent 64%
    );
  opacity: 0;
  transform: translate3d(-12px, 0, 0);
  animation: intro-signal-tear 5.4s steps(1, end) infinite;
}

.intro-fx i:nth-of-type(1) {
  top: 29%;
}

.intro-fx i:nth-of-type(2) {
  top: 69%;
  animation-delay: -2.7s;
}

.intro-fx i:nth-of-type(3) {
  top: 0;
  left: -18%;
  width: 14%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(var(--accent-rgb), 0.03) 24%,
    rgba(var(--accent-rgb), 0.24) 49%,
    rgba(var(--paper-rgb), 0.08) 51%,
    transparent 76%
  );
  opacity: 0.42;
  transform: translate3d(0, 0, 0);
  animation: intro-scan-pass 5.8s cubic-bezier(0.2, 0.7, 0.2, 1) infinite;
}

.screen--intro .intro-title {
  isolation: isolate;
  width: 100%;
  max-width: none;
  font-size: clamp(22px, 5.5vw, 60px);
  line-height: 0.92;
}

.intro-title__line {
  position: relative;
  display: block;
  width: fit-content;
  max-width: 100%;
  white-space: nowrap;
  text-shadow:
    2px 0 rgba(var(--accent-rgb), 0.34),
    -2px 0 rgba(var(--paper-rgb), 0.1),
    0 0 24px rgba(var(--accent-rgb), 0.24);
  animation:
    intro-title-lock 620ms steps(5, end) both,
    intro-title-anchor 6.4s steps(1, end) 900ms infinite;
}

.intro-title__line:nth-child(2) {
  animation-delay: 90ms, 1.7s;
}

.intro-title__line::before,
.intro-title__line::after {
  position: absolute;
  inset: 0;
  width: 100%;
  content: attr(data-glitch);
  opacity: 0;
  pointer-events: none;
}

.intro-title__line::before {
  z-index: -1;
  color: var(--accent);
  clip-path: inset(7% 0 61%);
  animation: intro-copy-glitch-a 4.8s steps(1, end) 700ms infinite;
}

.intro-title__line::after {
  z-index: 2;
  color: var(--paper);
  clip-path: inset(58% 0 8%);
  text-shadow: 5px 0 var(--accent);
  animation: intro-copy-glitch-b 5.6s steps(1, end) 1.1s infinite;
}

.screen--intro .primary-button {
  opacity: 1;
  visibility: visible;
  overflow: hidden;
  border-color: var(--paper);
  box-shadow:
    -6px 6px 0 -4px var(--accent),
    6px -6px 0 -4px rgba(var(--paper-rgb), 0.7),
    0 0 32px rgba(var(--accent-rgb), 0.18);
  animation: intro-cta-print 720ms steps(5, end) 180ms backwards;
}

.screen--intro .primary-button::after {
  position: absolute;
  z-index: 0;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 0 34%,
    rgba(var(--accent-rgb), 0.22) 45%,
    rgba(var(--paper-rgb), 0.52) 50%,
    transparent 58%
  );
  content: "";
  pointer-events: none;
  transform: translate3d(-120%, 0, 0);
  animation: intro-cta-scan 4.6s cubic-bezier(0.5, 0, 0.2, 1) 1.2s infinite;
}

.screen--intro .primary-button span,
.screen--intro .primary-button b {
  position: relative;
  z-index: 1;
}

.screen--intro .primary-button span::before {
  margin-right: 13px;
  color: #071016;
  content: "◉_◉";
  font: 900 0.78em/1 "Courier New", monospace;
  letter-spacing: -0.08em;
}

.screen--intro .primary-button span {
  animation: intro-cta-label 6.2s steps(1, end) 1.4s infinite;
}

.screen--intro .primary-button b {
  animation: intro-arrow-desync 5.4s steps(1, end) 1.1s infinite;
}

.screen--intro .primary-button:hover:not(:disabled) {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, -2px, 0);
  box-shadow:
    8px 0 0 -4px var(--paper),
    -8px 0 0 -4px var(--accent),
    0 0 42px rgba(var(--accent-rgb), 0.3);

}

.screen--intro .primary-button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 7px;
}

@keyframes intro-terminal-lock {
  0% {
    opacity: 0;
    transform: translate3d(-10px, 8px, 0) scaleY(0.985);
  }
  45% {
    opacity: 0.66;
    transform: translate3d(7px, -2px, 0) scaleY(1.006);
  }
  70% {
    opacity: 0.84;
    transform: translate3d(-3px, 1px, 0);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes intro-title-lock {
  0% {
    opacity: 0;
    transform: translate3d(18px, 0, 0);
  }
  35% {
    opacity: 0.5;
    transform: translate3d(-7px, 0, 0);
  }
  68% {
    opacity: 0.82;
    transform: translate3d(4px, 0, 0);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes intro-title-anchor {
  0%,
  47%,
  50%,
  82%,
  85%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  48% {
    transform: translate3d(-2px, 0, 0);
  }
  49% {
    transform: translate3d(2px, 0, 0);
  }
  83% {
    transform: translate3d(0, -1px, 0);
  }
  84% {
    transform: translate3d(0, 1px, 0);
  }
}

@keyframes intro-copy-glitch-a {
  0%,
  79%,
  84%,
  100% {
    opacity: 0;
    transform: translate3d(0, 0, 0);
  }
  80% {
    opacity: 0.85;
    transform: translate3d(-8px, 1px, 0);
  }
  81% {
    opacity: 0.55;
    transform: translate3d(6px, -1px, 0);
  }
  82% {
    opacity: 0.92;
    transform: translate3d(-3px, 0, 0);
  }
  83% {
    opacity: 0;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes intro-copy-glitch-b {
  0%,
  57%,
  62%,
  100% {
    opacity: 0;
    transform: translate3d(0, 0, 0);
  }
  58% {
    opacity: 0.76;
    transform: translate3d(7px, 0, 0);
  }
  59% {
    opacity: 0.42;
    transform: translate3d(-5px, 1px, 0);
  }
  60% {
    opacity: 0.86;
    transform: translate3d(3px, -1px, 0);
  }
  61% {
    opacity: 0;
  }
}

@keyframes intro-eyes-desync {
  0%,
  39%,
  44%,
  77%,
  81%,
  100% {
    opacity: 0.14;
    transform: translate3d(0, -50%, 0) rotate(-4deg);
  }
  40% {
    opacity: 0.18;
    transform: translate3d(-12px, -50%, 0) rotate(-4deg);
  }
  41% {
    opacity: 0.06;
    transform: translate3d(9px, -50%, 0) rotate(-4deg);
  }
  42% {
    opacity: 0.15;
    transform: translate3d(-4px, -50%, 0) rotate(-4deg);
  }
  78% {
    opacity: 0.2;
    transform: translate3d(7px, -50%, 0) rotate(-4deg);
  }
  79% {
    opacity: 0.04;
    transform: translate3d(-5px, -50%, 0) rotate(-4deg);
  }
}

@keyframes intro-signal-tear {
  0%,
  66%,
  71%,
  100% {
    opacity: 0;
    transform: translate3d(-12px, 0, 0);
  }
  67% {
    opacity: 0.42;
    transform: translate3d(14px, 0, 0);
  }
  68% {
    opacity: 0.75;
    transform: translate3d(-5px, 0, 0);
  }
  69% {
    opacity: 0.25;
    transform: translate3d(8px, 0, 0);
  }
  70% {
    opacity: 0;
  }
}

@keyframes intro-scan-pass {
  0%,
  12% {
    transform: translate3d(0, 0, 0);
  }
  63%,
  100% {
    transform: translate3d(850%, 0, 0);
  }
}

@keyframes intro-binary-skip {
  0%,
  31%,
  35%,
  74%,
  78%,
  100% {
    opacity: 0.28;
    transform: translate3d(0, 0, 0);
  }
  32% {
    opacity: 0.72;
    transform: translate3d(16px, 0, 0);
  }
  33% {
    opacity: 0.08;
    transform: translate3d(-8px, 0, 0);
  }
  75% {
    opacity: 0.58;
    transform: translate3d(-13px, 0, 0);
  }
  76% {
    opacity: 0.1;
    transform: translate3d(6px, 0, 0);
  }
}

@keyframes intro-barcode-hit {
  0%,
  52%,
  56%,
  100% {
    opacity: 0.33;
    transform: scaleX(1);
  }
  53% {
    opacity: 0.7;
    transform: scaleX(0.62);
  }
  54% {
    opacity: 0.13;
    transform: scaleX(1.08);
  }
  55% {
    opacity: 0.44;
    transform: scaleX(0.88);
  }
}

@keyframes intro-cta-print {
  0% {
    opacity: 0;
    transform: translate3d(0, 14px, 0) scaleX(0.94);
  }
  55% {
    opacity: 0.7;
    transform: translate3d(-4px, 0, 0) scaleX(1.015);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scaleX(1);
  }
}

@keyframes intro-cta-scan {
  0%,
  16% {
    transform: translate3d(-120%, 0, 0);
  }
  50%,
  100% {
    transform: translate3d(120%, 0, 0);
  }
}

@keyframes intro-cta-label {
  0%,
  71%,
  75%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  72% {
    transform: translate3d(-2px, 0, 0);
  }
  73% {
    transform: translate3d(2px, 0, 0);
  }
  74% {
    transform: translate3d(-1px, 0, 0);
  }
}

@keyframes intro-arrow-desync {
  0%,
  42%,
  46%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  43% {
    transform: translate3d(3px, 0, 0);
  }
  44% {
    transform: translate3d(-2px, 0, 0);
  }
  45% {
    transform: translate3d(1px, 0, 0);
  }
}

@keyframes intro-cta-hover {
  0% {
    transform: translate3d(0, -2px, 0);
  }
  50% {
    transform: translate3d(-3px, -2px, 0);
  }
  100% {
    transform: translate3d(0, -2px, 0);
  }
}

@media (max-width: 720px) {
  .screen--intro .boot-terminal--intro {
    gap: 30px;
    box-shadow:
      -7px 0 0 -5px var(--paper),
      7px 0 0 -5px var(--accent),
      0 0 36px rgba(var(--accent-rgb), 0.1),
      inset 0 0 60px rgba(0, 0, 0, 0.68);
  }

  .intro-fx__eyes {
    right: -20%;
    font-size: clamp(180px, 65vw, 300px);
    opacity: 0.1;
  }

  .intro-fx::before {
    top: 14px;
    left: 14px;
    width: calc(100% - 28px);
    font-size: 9px;
    opacity: 0.7;
  }

  .intro-fx::after {
    right: 20px;
    bottom: 18px;
    width: 42%;
    height: 14px;
  }

  .intro-fx i:nth-of-type(2) {
    display: none;
  }

  .intro-fx i:nth-of-type(3) {
    opacity: 0.24;
    animation-duration: 7.5s;
  }

  .screen--intro .primary-button {
    width: 100%;
  }

  .screen--intro .primary-button span::before {
    margin-right: 9px;
  }

  body:has(.screen--intro:not([hidden])) .ambient::after {
    display: none;
  }

  body:has(.screen--intro:not([hidden])) .ambient::before {
    filter: blur(24px);
    opacity: 0.12;
    animation: none;
  }

  body:has(.screen--intro:not([hidden])) .ambient__noise {
    opacity: 0.1;
    mix-blend-mode: normal;
    animation-duration: 800ms;
  }
}

@media (prefers-reduced-motion: reduce) {
  .screen--intro .boot-terminal--intro,
  .intro-title__line,
  .intro-title__line::before,
  .intro-title__line::after,
  .intro-fx,
  .intro-fx::before,
  .intro-fx::after,
  .intro-fx__eyes,
  .intro-fx i,
  .screen--intro .primary-button,
  .screen--intro .primary-button::after,
  .screen--intro .primary-button span,
  .screen--intro .primary-button b {
    animation: none !important;
    transform: none;
  }

  .intro-title__line::before,
  .intro-title__line::after,
  .intro-fx i,
  .screen--intro .primary-button::after {
    display: none;
  }

  .intro-fx__eyes {
    top: 50%;
    right: -7%;
    opacity: 0.07;
    transform: translate3d(0, -50%, 0);
  }
}