/* Cyberpunk / CRT effects — scoped to .landing (index.html) */

:root {
  --neon-cyan: #6fd8d1;      /* muted teal, not electric */
  --neon-cold: #4a6f8a;      /* cold steel-blue — replaces hot magenta in glitch/hover */
  --neon-green: #2ee65f;
  --crt-scanline: rgba(0, 0, 0, 0.18);
  --crt-glow: rgba(111, 216, 209, 0.06);
}

/* ── CRT overlay: scanlines + vignette + noise ── */
body.landing::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background:
    radial-gradient(
      ellipse at center,
      transparent 55%,
      rgba(0, 0, 0, 0.45) 100%
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      var(--crt-scanline) 2px,
      var(--crt-scanline) 3px
    );
  opacity: 0.55;
  mix-blend-mode: multiply;
}

body.landing .crt-noise {
  position: fixed;
  inset: 0;
  z-index: 9997;
  pointer-events: none;
  opacity: 0.035;
  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-size: 180px 180px;
  animation: crt-noise-shift 0.35s steps(3) infinite;
}

@keyframes crt-noise-shift {
  0% { transform: translate(0, 0); }
  33% { transform: translate(-2px, 1px); }
  66% { transform: translate(1px, -2px); }
  100% { transform: translate(0, 0); }
}

/* ── HUD status bar ── */
.hud-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding: 0.45rem 0.75rem;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  background: rgba(17, 17, 17, 0.85);
  clip-path: polygon(
    0 0,
    calc(100% - 10px) 0,
    100% 10px,
    100% 100%,
    10px 100%,
    0 calc(100% - 10px)
  );
  position: relative;
}

.hud-bar::before,
.hud-bar::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--neon-cyan);
  border-style: solid;
  opacity: 0.6;
}

.hud-bar::before {
  top: 3px;
  left: 3px;
  border-width: 1px 0 0 1px;
}

.hud-bar::after {
  bottom: 3px;
  right: 3px;
  border-width: 0 1px 1px 0;
}

.hud-bar__left,
.hud-bar__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hud-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.hud-indicator::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 6px var(--neon-green);
  animation: hud-pulse 2.4s ease-in-out infinite;
}

.hud-indicator--warn::before {
  background: var(--warning);
  box-shadow: 0 0 6px var(--warning);
}

.hud-indicator--accent::before {
  background: var(--neon-cyan);
  box-shadow: 0 0 6px var(--neon-cyan);
}

@keyframes hud-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ── Telemetry readouts: live uptime clock + rotating session id ── */
.hud-readout {
  font-variant-numeric: tabular-nums;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
}

.hud-readout--id {
  color: var(--neon-cyan);
  opacity: 0.75;
}

/* ── Glitch hero title ── */
.landing header h1 {
  position: relative;
}

.glitch-text {
  position: relative;
  display: inline-block;
  color: var(--fg);
  text-shadow:
    0 0 20px var(--crt-glow),
    0 0 40px rgba(0, 98, 255, 0.15);
}

.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.glitch-text::before {
  left: 2px;
  text-shadow: -2px 0 var(--neon-cold);
  clip-path: inset(0 0 65% 0);
  opacity: 0;
}

.glitch-text::after {
  left: -2px;
  text-shadow: 2px 0 var(--neon-cyan);
  clip-path: inset(35% 0 0 0);
  opacity: 0;
}

/* Ambient state is clean, undistorted text. The RGB-split only fires as a
   brief, JS-scheduled signal hiccup (.is-glitching), not a constant loop. */
.glitch-text.is-glitching::before {
  animation: glitch-burst-a 0.5s steps(3);
}

.glitch-text.is-glitching::after {
  animation: glitch-burst-b 0.45s steps(3);
}

@keyframes glitch-burst-a {
  0%, 100% { opacity: 0; transform: translate(0); }
  15% { opacity: 0.9; transform: translate(-4px, 1px); }
  35% { transform: translate(3px, -1px); }
  55% { transform: translate(-2px, 0); }
  75% { opacity: 0.5; transform: translate(2px, 1px); }
}

@keyframes glitch-burst-b {
  0%, 100% { opacity: 0; transform: translate(0); }
  20% { opacity: 0.9; transform: translate(4px, -1px); }
  45% { transform: translate(-3px, 1px); }
  70% { opacity: 0.5; transform: translate(2px, 0); }
}

.glitch-text:hover {
  animation: glitch-skew 0.35s steps(2) 1;
}

@keyframes glitch-skew {
  0% { transform: skew(0deg); }
  25% { transform: skew(-2deg) translateX(-2px); }
  50% { transform: skew(1deg) translateX(3px); }
  75% { transform: skew(-1deg); }
  100% { transform: skew(0deg); }
}

/* ── Section headings: subtle terminal flicker ── */
.landing h2 {
  text-shadow: 0 0 12px rgba(111, 216, 209, 0.06);
}

.landing h2.in-view {
  animation: heading-flicker 0.15s steps(2) 1;
}

@keyframes heading-flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.82; text-shadow: 0 0 16px rgba(74, 111, 138, 0.12); }
}

/* ── HUD badges (chamfered corners + neon edge) ── */
.landing .badge {
  border-radius: 0;
  clip-path: polygon(
    8px 0,
    100% 0,
    100% calc(100% - 8px),
    calc(100% - 8px) 100%,
    0 100%,
    0 8px
  );
  position: relative;
  border-color: var(--border);
  box-shadow: inset 0 0 0 1px rgba(111, 216, 209, 0);
  transition:
    border-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.landing .badge::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  border-top: 1px solid transparent;
  border-left: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.landing .badge:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  background: rgba(111, 216, 209, 0.06);
  box-shadow:
    0 0 12px rgba(111, 216, 209, 0.15),
    inset 0 0 20px rgba(111, 216, 209, 0.04);
}

.landing .badge:hover::before {
  border-color: var(--neon-cold);
}

/* ── Lang switcher HUD treatment ── */
.landing .lang-switcher button {
  border-radius: 0;
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}

.landing .lang-switcher button:hover,
.landing .lang-switcher button.active {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(111, 216, 209, 0.2);
}

/* ── Table: scanline sweep on Konstruct row ── */
.landing tbody tr:last-child {
  position: relative;
  background: rgba(0, 98, 255, 0.04);
}

.landing tbody tr:last-child th strong {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(111, 216, 209, 0.35);
}

.landing tbody tr:hover {
  background: rgba(111, 216, 209, 0.05);
}

/* ── Links: neon underline bloom ── */
.landing main a:not(.badge):hover {
  text-shadow: 0 0 8px rgba(111, 216, 209, 0.35);
}

/* ── Mission panel: CRT bezel ── */
.landing section[aria-labelledby="about-heading"] {
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    16px 100%,
    0 calc(100% - 16px)
  );
  box-shadow:
    inset 0 0 60px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(111, 216, 209, 0.08);
}

/* ── Corrupted text (JS-driven) ── */
.corrupt-target {
  display: inline-block;
}

.corrupt-target.is-scrambling {
  color: var(--neon-cold);
  text-shadow: 0 0 6px rgba(74, 111, 138, 0.4);
}

@media (prefers-reduced-motion: reduce) {
  body.landing::after,
  body.landing .crt-noise {
    animation: none;
    opacity: 0.35;
  }

  .glitch-text::before,
  .glitch-text::after {
    animation: none;
    opacity: 0;
  }

  .glitch-text:hover {
    animation: none;
  }

  .hud-indicator::before {
    animation: none;
  }

  .landing h2.in-view {
    animation: none;
  }
}

@media print {
  body.landing::after,
  body.landing .crt-noise,
  .hud-bar {
    display: none !important;
  }
}