:root {
  --black: #010201;
  --panel: rgba(2, 5, 3, .955);
  --green: #8fb998;
  --green-bright: #a5d3ae;
  --green-dim: #304637;
  --green-grid: rgba(91, 145, 101, .18);
  --border: #1e3023;
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--black);
  color: var(--green);
  font-family: "DejaVu Sans Mono", "Liberation Mono", "Courier New", monospace;
}

body {
  min-height: 100vh;
  overflow: hidden;
  display: grid;
  place-items: center;
  position: relative;
}

/* restrained CRT texture */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(255,255,255,.010) 0,
      rgba(255,255,255,.010) 1px,
      transparent 1px,
      transparent 4px
    );
  opacity: .45;
}

/* nearly-black sky */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 51% 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(78, 126, 87, .055), transparent 52%),
    #010201;
}

/* virtual horizon */
.horizon {
  position: fixed;
  left: 0;
  right: 0;
  top: 49%;
  height: 1px;
  z-index: 0;
  background: rgba(110, 169, 120, .20);
  box-shadow:
    0 0 10px rgba(110, 169, 120, .08),
    0 0 34px rgba(110, 169, 120, .035);
}

/* perspective wireframe plane */
.grid-floor {
  position: fixed;
  z-index: 0;
  left: -42vw;
  right: -42vw;
  top: 49%;
  height: 92vh;
  transform-origin: top center;
  transform: perspective(560px) rotateX(65deg);
  background-image:
    linear-gradient(to right, var(--green-grid) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(91, 145, 101, .145) 1px, transparent 1px);
  background-size: 76px 48px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.25), #000 23%, #000);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.25), #000 23%, #000);
}

/* central plate */
.screen {
  position: relative;
  z-index: 5;
  width: min(720px, calc(100vw - 34px));
}

.panel {
  min-height: 390px;
  display: grid;
  align-content: center;
  gap: 28px;
  padding: 50px 64px 44px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow:
    0 26px 100px rgba(0,0,0,.88),
    inset 0 0 65px rgba(0,0,0,.70),
    0 0 20px rgba(93, 153, 105, .018);
}

.logo {
  display: block;
  width: min(470px, 92%);
  height: auto;
  margin: 0 auto;
  filter: drop-shadow(0 0 7px rgba(135, 199, 146, .08));
}

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    var(--green-dim) 18%,
    var(--green-dim) 82%,
    transparent
  );
}

.motd {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 18px;
  align-items: start;
}

.motd-label {
  color: var(--green-dim);
  letter-spacing: .14em;
  font-size: .70rem;
  padding-top: .18rem;
}

.motd p {
  margin: 0;
  min-height: 2.8em;
  color: var(--green);
  line-height: 1.5;
  font-size: clamp(.80rem, 1.55vw, .98rem);
}

@media (max-width: 620px) {
  .screen { width: min(94vw, 720px); }

  .panel {
    min-height: 330px;
    padding: 38px 24px 32px;
    gap: 22px;
  }

  .logo { width: min(430px, 100%); }

  .motd {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .grid-floor { background-size: 50px 38px; }
}