/*
  JC-1306 CSS Sweep Notes
  Geisterechos sehen echt aus. Nur ein Echo antwortet auf den passenden IFF-Code.
  Falls die Anzeige schweigt: Frage nicht den Bildschirm, frage das Archiv.
*/
:root {
  --bg: #030706;
  --card: rgba(3, 20, 14, .86);
  --green: #53ff9a;
  --green-dim: rgba(83, 255, 154, .18);
  --green-soft: rgba(83, 255, 154, .55);
  --amber: #ffd36a;
  --text: #d9ffe8;
  --muted: rgba(217, 255, 232, .72);
  --danger: #ff6d6d;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 50% 35%, rgba(24, 117, 69, .2), transparent 42rem),
    linear-gradient(135deg, #020403, #07100c 55%, #010302);
  color: var(--text);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(255,255,255,.035), rgba(255,255,255,.035) 1px, transparent 1px, transparent 5px);
  mix-blend-mode: screen;
  opacity: .28;
}
.radar-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 3vw, 3rem);
}
.radar-card {
  width: min(1120px, 100%);
  border: 1px solid rgba(83, 255, 154, .32);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(4, 28, 18, .92), rgba(1, 8, 5, .92));
  box-shadow: 0 30px 90px rgba(0,0,0,.55), inset 0 0 60px rgba(83,255,154,.06);
  overflow: hidden;
}
.topline {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .9rem 1.1rem;
  border-bottom: 1px solid rgba(83, 255, 154, .22);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .85rem;
  letter-spacing: .16em;
  color: var(--muted);
}
.topline__right { margin-left: auto; color: var(--green); }
.dot {
  width: .7rem;
  height: .7rem;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 18px var(--green);
}
.radar-layout {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) 320px;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.2rem, 4vw, 3rem);
}
.radar-main {
  display: grid;
  gap: 1rem;
}
.radar-screen {
  position: relative;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(83,255,154,.08) 0 2px, transparent 3px),
    radial-gradient(circle, rgba(83,255,154,.12), rgba(83,255,154,.025) 45%, rgba(0,0,0,.78) 72%);
  border: 2px solid rgba(83,255,154,.55);
  box-shadow: inset 0 0 80px rgba(83,255,154,.13), 0 0 42px rgba(83,255,154,.12);
  overflow: hidden;
}
.radar-screen::before {
  content: "";
  position: absolute;
  inset: 2%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(83,255,154,.08), transparent 12deg 360deg);
  animation: radarGlow 5s linear infinite;
}
.ring, .cross, .sweep, .center-ping, .echo, .bearing { position: absolute; }
.ring {
  inset: var(--inset);
  border-radius: 50%;
  border: 1px solid rgba(83,255,154,.23);
}
.ring-1 { --inset: 18%; }
.ring-2 { --inset: 34%; }
.ring-3 { --inset: 50%; }
.cross { background: rgba(83,255,154,.18); }
.cross-h { height: 1px; left: 6%; right: 6%; top: 50%; }
.cross-v { width: 1px; top: 6%; bottom: 6%; left: 50%; }
.sweep {
  width: 50%;
  height: 50%;
  left: 50%;
  top: 0;
  transform-origin: 0 100%;
  background: linear-gradient(85deg, rgba(83,255,154,.55), rgba(83,255,154,.12) 42%, transparent 72%);
  clip-path: polygon(0 100%, 100% 0, 62% 100%);
  animation: sweep 4.8s linear infinite;
  filter: blur(.2px);
}
.center-ping {
  width: 12px;
  height: 12px;
  left: calc(50% - 6px);
  top: calc(50% - 6px);
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 22px var(--green);
}
.echo {
  --size: 14px;
  width: var(--size);
  height: var(--size);
  border: 0;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 16px var(--green), 0 0 34px rgba(83,255,154,.3);
  cursor: crosshair;
  opacity: .88;
  animation: blink 2.8s ease-in-out infinite;
}
.echo::after {
  content: attr(data-echo);
  position: absolute;
  left: 1rem;
  top: -.45rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .75rem;
  color: var(--green);
  text-shadow: 0 0 8px rgba(83,255,154,.8);
}
.echo:hover, .echo:focus-visible { outline: 2px solid var(--amber); outline-offset: 4px; }
/* purely decorative positions; authoritative records are not on the glass */
.echo-a { left: 61%; top: 22%; animation-delay: .2s; }
.echo-b { left: 72%; top: 53%; animation-delay: .8s; opacity: .52; }
.echo-c { left: 79%; top: 72%; animation-delay: 1.3s; }
.echo-d { left: 31%; top: 67%; animation-delay: 1.8s; opacity: .42; }
.echo-x { left: 42%; top: 28%; animation-delay: 2.2s; background: var(--danger); box-shadow: 0 0 16px var(--danger); }
.bearing {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: rgba(217,255,232,.62);
  font-size: .8rem;
  letter-spacing: .12em;
}
.bearing-n { top: 3%; left: 50%; transform: translateX(-50%); }
.bearing-e { right: 3%; top: 50%; transform: translateY(-50%); }
.bearing-s { bottom: 3%; left: 50%; transform: translateX(-50%); }
.bearing-w { left: 3%; top: 50%; transform: translateY(-50%); }
.panel {
  align-self: center;
  border: 1px solid rgba(83,255,154,.24);
  border-radius: 22px;
  background: rgba(0,0,0,.28);
  padding: 1.3rem;
}
h1 {
  margin: 0 0 .5rem;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: .95;
  letter-spacing: -.04em;
}
.mono, .readout, .tiny {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.status-line {
  color: var(--amber);
  min-height: 1.2em;
}
.readout {
  display: grid;
  gap: .6rem;
  margin: 1.6rem 0;
}
.readout div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px dashed rgba(83,255,154,.18);
  padding-bottom: .45rem;
}
dt { color: var(--muted); }
dd { margin: 0; color: var(--green); }
.hint { color: var(--muted); line-height: 1.55; }
.tiny { color: rgba(217,255,232,.42); font-size: .78rem; }

.radar-console {
  border: 1px solid rgba(83,255,154,.24);
  border-radius: 20px;
  background: rgba(0,0,0,.36);
  box-shadow: inset 0 0 30px rgba(83,255,154,.055);
  overflow: hidden;
}
.console-head {
  display: flex;
  justify-content: space-between;
  gap: .75rem;
  padding: .75rem .9rem;
  border-bottom: 1px solid rgba(83,255,154,.18);
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .78rem;
  letter-spacing: .12em;
}
.console-body {
  padding: .9rem;
}
.console-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .7rem;
  align-items: end;
}
.console-form label {
  display: block;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .74rem;
  letter-spacing: .12em;
  margin-bottom: .35rem;
}
.console-form input {
  width: 100%;
  border: 1px solid rgba(83,255,154,.35);
  border-radius: 14px;
  background: rgba(0,0,0,.42);
  color: var(--text);
  padding: .85rem .9rem;
  font: inherit;
  outline: none;
}
.console-form input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(83,255,154,.12);
}
.console-form button {
  border: 1px solid rgba(83,255,154,.48);
  border-radius: 14px;
  background: rgba(83,255,154,.13);
  color: var(--green);
  font-weight: 800;
  letter-spacing: .08em;
  padding: .85rem 1rem;
  cursor: pointer;
}
.console-form button:hover,
.console-form button:focus-visible {
  background: rgba(83,255,154,.2);
}
.console-output {
  margin: .85rem 0 0;
  min-height: 4.3rem;
  white-space: pre-wrap;
  color: rgba(217,255,232,.7);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .82rem;
  line-height: 1.45;
}
.console-output.ok { color: var(--green); }
.console-output.warn { color: var(--amber); }
.console-output.bad { color: var(--danger); }

@keyframes sweep { to { transform: rotate(360deg); } }
@keyframes radarGlow { to { transform: rotate(360deg); } }
@keyframes blink { 0%, 100% { transform: scale(.92); opacity: .46; } 48% { transform: scale(1.12); opacity: .95; } }
@media (max-width: 850px) {
  .radar-layout { grid-template-columns: 1fr; }
  .panel { align-self: auto; }
}
@media (max-width: 620px) {
  .console-form { grid-template-columns: 1fr; }
  .console-form button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; scroll-behavior: auto !important; }
}