:root{
  --bg0:#040806;
  --bg1:#050c08;
  --panel:#06130c;
  --edge:#0e2a1c;

  --txt:#bfffd7;
  --dim:#6fd7a3;

  --glow: rgba(140,255,205,0.18);
  --glow2: rgba(140,255,205,0.10);

  --radius:14px;
  --pad:22px;
  --max:1100px;
}

/* reset */
*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
  margin:0;
  background:
    radial-gradient(1200px 700px at 50% 14%, #08180f 0%, var(--bg1) 55%, #020402 100%);
  color:var(--txt);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

/* background grain */
.bg-noise{
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:0.22;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.012) 0px, rgba(255,255,255,.012) 1px, transparent 3px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.008) 0px, rgba(255,255,255,.008) 1px, transparent 2px);
  mix-blend-mode:overlay;
}

.mono{
  font-family: ui-monospace, Menlo, Monaco, Consolas, monospace;
  letter-spacing:.14em;
  text-transform:uppercase;
}

.dim{ color:var(--dim); opacity:.85; }

/* header */
.top{
  max-width:var(--max);
  margin:16px auto 0;
  padding:0 18px;
  display:flex;
  align-items:center;
  gap:16px;
}

.title{
  flex:1;
  font-size:13px;
  letter-spacing:.2em;
  opacity:.9;
}

/* layout */
.wrap{
  max-width:var(--max);
  margin:18px auto 0;
  padding:0 18px 18px;
  display:flex;
  flex-direction:column;
  gap:22px;
}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  border-radius:999px;
  border:1px solid var(--edge);
  background:rgba(0,0,0,.2);
  color:var(--txt);
  text-decoration:none;
  font-size:12px;
}

.btn:hover{ border-color:rgba(140,255,205,.35); }

.btn-primary{
  background:linear-gradient(to bottom, rgba(10,25,16,.55), rgba(5,15,10,.35));
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}

/* panels */
.panel,
.card{
  border-radius:var(--radius);
  background:linear-gradient(to bottom, rgba(10,25,16,.78), rgba(6,14,10,.7));
  border:1px solid rgba(14,42,28,.9);
  box-shadow:
    0 0 0 1px rgba(140,255,205,.06) inset,
    0 18px 60px rgba(0,0,0,.48);
  overflow:hidden;
}

/* panel header */
.panel-head,
.card-head{
  padding:14px 18px 12px;
  border-bottom:1px solid rgba(14,42,28,.65);
  font-size:12px;
}

/* panel body */
.panel-body{
  padding:var(--pad);
  text-shadow:0 0 10px var(--glow2);
}

.panel-body-wide{
  padding-top:18px;
  padding-bottom:18px;
}

/* hero */
.hero{
  margin:0 0 12px;
  font-size:46px;
  line-height:1.08;
  font-weight:750;
  text-shadow:0 0 18px var(--glow);
}

.hero-sub{ opacity:.95; }

.lede{
  max-width:76ch;
  line-height:1.6;
  color:var(--dim);
}

/* cards */
.cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}

@media (max-width:980px){
  .cards{ grid-template-columns:1fr; }
  .hero{ font-size:38px; }
}

.card-body{ padding:18px; }

.card-title{
  font-size:22px;
  font-weight:720;
  margin-bottom:10px;
  text-shadow:0 0 14px var(--glow);
}

.card-text{ color:var(--dim); }

/* steps */
.steps{
  padding-left:22px;
  line-height:1.8;
  color:var(--dim);
}

/* footer */
.foot{
  max-width:var(--max);
  margin:10px auto 24px;
  padding:0 18px;
  font-size:12px;
  letter-spacing:.2em;
}

/* ===============================
   CRT BEHAVIOUR (VISIBLE + STABLE)
   =============================== */

.crt{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  animation:crt_flicker 4s infinite;
}

/* glass + scanlines */
.crt::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:5;
  pointer-events:none;
  background:
    radial-gradient(120% 100% at 50% 50%, transparent 55%, rgba(0,0,0,.32) 100%),
    repeating-linear-gradient(to bottom,
      transparent 0px,
      transparent 2px,
      rgba(0,0,0,.14) 3px);
  opacity:.9;
}

/* moving grain */
.crt::after{
  content:"";
  position:absolute;
  inset:-20%;
  z-index:6;
  pointer-events:none;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.015) 0px, rgba(255,255,255,.015) 1px, transparent 3px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.01) 0px, rgba(255,255,255,.01) 1px, transparent 2px);
  opacity:.25;
  animation:crt_noise 6s steps(60,end) infinite;
}

/* wobble + tear hooks (JS) */
.crt.crt-wobble{
  animation:crt_flicker 4s infinite, crt_wobble 220ms linear 1;
}

.crt.crt-distort{
  filter:url(#crt-displacement);
}

.crt.crt-tear::before{
  background:
    linear-gradient(to bottom,
      transparent 44%,
      rgba(255,255,255,.08) 46%,
      rgba(0,0,0,.18) 48%,
      rgba(255,255,255,.04) 50%,
      transparent 52%
    ),
    radial-gradient(120% 100% at 50% 50%, transparent 55%, rgba(0,0,0,.32) 100%),
    repeating-linear-gradient(to bottom, transparent 0px, transparent 2px, rgba(0,0,0,.14) 3px);
}

/* animations */
@keyframes crt_flicker{
  0%,100%{ opacity:1; }
  10%{ opacity:.95; }
  11%{ opacity:1; }
  40%{ opacity:.93; }
  41%{ opacity:1; }
  70%{ opacity:.96; }
  71%{ opacity:1; }
}

@keyframes crt_noise{
  0%{ transform:translate(-2%,-1%); }
  50%{ transform:translate(2%,1%); }
  100%{ transform:translate(-1%,2%); }
}

@keyframes crt_wobble{
  0%{ transform:translateX(0); }
  50%{ transform:translateX(1px); }
  100%{ transform:translateX(0); }
}