/* =============================================================
   Tactical Radar — standalone styles
   All selectors are scoped under .tr-radar so it can drop into
   any page without colliding with global CSS.
   Customize via CSS custom properties on .tr-radar (see :root).
   ============================================================= */

.tr-radar {
  /* === Tunables ============================================ */
  --tr-size: 540px;                    /* outer square size       */
  --tr-bg: #050507;                    /* radar viewport bg       */
  --tr-brand: #A8263C;                 /* radar accent (red)      */
  --tr-brand-bright: #E94560;          /* hot accent (markers)    */
  --tr-brand-glow: 220, 60, 80;        /* RGB for sweep highlight */
  --tr-success: #4ADE80;
  --tr-text-1: #F5F5F5;
  --tr-text-2: #9B9BA0;
  --tr-text-3: #6B6B70;
  --tr-border: rgba(255, 255, 255, 0.12);
  --tr-border-strong: rgba(255, 255, 255, 0.16);
  --tr-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;

  /* Map tint — match your brand red */
  --tr-map-filter: invert(1) brightness(0.5) sepia(1) hue-rotate(-30deg) saturate(4);
  --tr-map-opacity: 0.55;
  --tr-map-bg-size: 140% auto;
  --tr-map-bg-pos: 38% 42%;

  /* === Internal ============================================ */
  position: relative;
  width: var(--tr-size);
  height: var(--tr-size);
  font-family: var(--tr-mono);
  color: var(--tr-text-1);
  user-select: none;
}

.tr-radar *, .tr-radar *::before, .tr-radar *::after {
  box-sizing: border-box;
}

/* ---- Corner frame brackets ---- */
.tr-corner {
  position: absolute;
  width: 18px;
  height: 18px;
}
.tr-corner::before,
.tr-corner::after {
  content: '';
  position: absolute;
  background: var(--tr-border-strong);
}
.tr-corner::before { top: 0; left: 0; width: 18px; height: 1px; }
.tr-corner::after  { top: 0; left: 0; width: 1px; height: 18px; }
.tr-corner.tl { top: 0;    left: 0;    }
.tr-corner.tr { top: 0;    right: 0;   transform: scaleX(-1); }
.tr-corner.bl { bottom: 0; left: 0;    transform: scaleY(-1); }
.tr-corner.br { bottom: 0; right: 0;   transform: scale(-1, -1); }

/* ---- Circular viewport ---- */
.tr-viewport {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 86%;
  height: 86%;
  border-radius: 50%;
  overflow: hidden;
  background: var(--tr-bg);
  box-shadow:
    inset 0 0 0 1px rgba(168, 38, 60, 0.3),
    0 0 80px rgba(139, 30, 42, 0.15);
}

/* Map background layer */
.tr-map {
  position: absolute;
  inset: 0;
  background-image: var(--tr-map-image);
  background-size: var(--tr-map-bg-size);
  background-position: var(--tr-map-bg-pos);
  background-repeat: no-repeat;
  filter: var(--tr-map-filter);
  opacity: var(--tr-map-opacity);
  mix-blend-mode: screen;
}

/* Radial vignette fade to dark at edges */
.tr-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, transparent 30%, rgba(5, 5, 7, 0.7) 90%);
  pointer-events: none;
}

/* SVG overlay (grid, sweep, markers) fills viewport */
.tr-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* Sweep wedge — rotated each frame via the SVG transform attribute
   (`rotate(angle 50 50)`). Do NOT add CSS transform-origin here —
   it overrides the SVG attribute's center-of-rotation in some browsers
   and causes the wedge to orbit around (0,0) instead of spinning
   around the radar center. */

/* Scanline overlay — pure CSS, no JS needed */
.tr-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent 0 2px,
    rgba(0, 0, 0, 0.18) 2px 3px
  );
  pointer-events: none;
  mix-blend-mode: multiply;
}

/* Subtle red flicker — CSS animation */
.tr-flicker {
  position: absolute;
  inset: 0;
  background: rgba(168, 38, 60, 0.04);
  pointer-events: none;
  animation: tr-flicker-anim 1.4s ease-in-out infinite;
}
@keyframes tr-flicker-anim {
  0%, 100% { opacity: 0.35; }
  50%      { opacity: 0.55; }
}

/* ---- Status HUD (top-right) ---- */
.tr-hud {
  position: absolute;
  right: -8px;
  top: 12px;
  border: 1px solid var(--tr-border-strong);
  background: rgba(10, 10, 11, 0.92);
  padding: 10px 14px;
  min-width: 180px;
  font-family: var(--tr-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.tr-hud-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.tr-hud-row + .tr-hud-row {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--tr-border);
}
.tr-hud-label  { color: var(--tr-text-3); }
.tr-hud-value  { color: var(--tr-text-1); font-variant-numeric: tabular-nums; }

.tr-status-online {
  color: var(--tr-success);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tr-status-dot {
  width: 6px;
  height: 6px;
  background: var(--tr-success);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--tr-success);
  animation: tr-blink 1.6s ease-in-out infinite;
}
@keyframes tr-blink {
  0%, 100% { opacity: 0.7; }
  50%      { opacity: 1; }
}

.tr-bars {
  display: inline-flex;
  gap: 2px;
  align-items: flex-end;
}
.tr-bars span {
  width: 3px;
  background: var(--tr-border-strong);
  display: inline-block;
}
.tr-bars span:nth-child(1) { height: 4px;  }
.tr-bars span:nth-child(2) { height: 6px;  }
.tr-bars span:nth-child(3) { height: 8px;  }
.tr-bars span:nth-child(4) { height: 10px; }
.tr-bars span:nth-child(5) { height: 12px; }
.tr-bars span.on { background: var(--tr-brand); }

/* ---- Coords readout (bottom-right) ---- */
.tr-coords {
  position: absolute;
  right: -8px;
  bottom: 24px;
  font-family: var(--tr-mono);
  font-size: 10px;
  color: var(--tr-brand);
  letter-spacing: 0.1em;
  text-align: right;
  line-height: 1.5;
}

/* ---- Live feed ticker (bottom-left) ---- */
.tr-feed {
  position: absolute;
  left: -8px;
  bottom: 24px;
  font-family: var(--tr-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  max-width: 200px;
}
.tr-feed-title {
  color: var(--tr-brand);
  margin-bottom: 4px;
}
.tr-feed-line {
  color: var(--tr-text-2);
  min-height: 14px;
  animation: tr-feed-fade 200ms ease-out;
}
@keyframes tr-feed-fade {
  from { opacity: 0; transform: translateY(2px); }
  to   { opacity: 0.85; transform: translateY(0); }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .tr-flicker,
  .tr-status-dot,
  .tr-feed-line { animation: none; }
}

/* =============================================================
   Loader — same tactical aesthetic, shown until the map asset
   has finished loading.
   ============================================================= */

.tr-loader {
  position: absolute;
  inset: 0;
  background: var(--tr-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  z-index: 10;
  border-radius: 50%;
  /* Fits inside the circular viewport — see .tr-loader-wrap */
}

/* Wrapper sits where the viewport is (matches .tr-viewport position) */
.tr-loader-wrap {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 86%;
  height: 86%;
  border-radius: 50%;
  overflow: hidden;
  background: var(--tr-bg);
  box-shadow:
    inset 0 0 0 1px rgba(168, 38, 60, 0.3),
    0 0 80px rgba(139, 30, 42, 0.15);
  z-index: 5;
  transition: opacity 400ms ease-out;
}
.tr-loader-wrap.tr-loaded {
  opacity: 0;
  pointer-events: none;
}

/* Sweeping spinner — single rotating wedge */
.tr-loader-spinner {
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: 50%;
}
.tr-loader-spinner::before,
.tr-loader-spinner::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
}
.tr-loader-spinner::before {
  border: 1px solid rgba(168, 38, 60, 0.25);
}
.tr-loader-spinner::after {
  border: 1px solid transparent;
  border-top-color: var(--tr-brand);
  border-right-color: var(--tr-brand-bright);
  animation: tr-loader-spin 1.2s linear infinite;
}
@keyframes tr-loader-spin {
  to { transform: rotate(360deg); }
}

/* "ACQUIRING SIGNAL..." text + dots */
.tr-loader-text {
  font-family: var(--tr-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--tr-text-2);
  white-space: nowrap;
}
.tr-loader-text::after {
  content: '';
  animation: tr-loader-dots 1.4s steps(4, end) infinite;
}
@keyframes tr-loader-dots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
  100% { content: ''; }
}

/* Progress bar — indeterminate, slides through */
.tr-loader-bar {
  width: 140px;
  height: 2px;
  background: rgba(168, 38, 60, 0.18);
  position: relative;
  overflow: hidden;
}
.tr-loader-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 30%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--tr-brand), transparent);
  animation: tr-loader-bar-slide 1.6s ease-in-out infinite;
}
@keyframes tr-loader-bar-slide {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(440%); }
}

/* Hex coordinates ticker — adds tactical flavor */
.tr-loader-meta {
  font-family: var(--tr-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--tr-text-3);
  text-transform: uppercase;
  white-space: nowrap;
}
.tr-loader-meta .tr-loader-meta-val { color: var(--tr-brand); }

@media (prefers-reduced-motion: reduce) {
  .tr-loader-spinner::after,
  .tr-loader-bar::after,
  .tr-loader-text::after { animation: none; }
}

/* =============================================================
   MOBILE LAYOUT — opt-in přes class .tr-mobile na .tr-radar
   nebo přes media query wrapper (viz README).

   Stejný DOM, stejná data, stejný JS — pouze přepozicování:
   · HUD chips jdou nad radar do horizontálního stripu
   · Live feed strip jde pod radar
   · Coords se sloučí do pravé strany feed stripu
   · Radar se zmenší na 86vw (max 340px)
   ============================================================= */

.tr-radar.tr-mobile {
  --tr-size: min(86vw, 340px);
  /* Strip + radar + strip + symetrické paddingy:
     36px (HUD) + 12px gap + size + 12px gap + 32px (feed) */
  --tr-mobile-hud-h: 36px;
  --tr-mobile-feed-h: 32px;
  --tr-mobile-gap: 12px;
  width: 100%;
  height: calc(var(--tr-size) + var(--tr-mobile-hud-h) + var(--tr-mobile-feed-h) + 2 * var(--tr-mobile-gap));
  max-width: 420px;
  margin: 0 auto;
}

/* Corners obklopují jen samotný radar (ne celý box) */
.tr-radar.tr-mobile .tr-corner {
  display: none; /* na mobilu je radar menší, brackety zbytečné */
}

/* Viewport (kruh + mapa), loader i SVG sdílí jednu pozici:
   centrum = (HUD strip + gap) + size/2 — měřeno od top.
   Kvůli translate(-50%, -50%) (z desktop pravidel) musíme dát
   `top` přímo na centrum. */
/* Viewport (kruh + mapa), loader i SVG sdílí jednu pozici.
   Pro SVG nepoužíváme transform: translate (interaguje s viewBox),
   místo toho přímo počítáme `left` od plné šířky rodiče. */
.tr-radar.tr-mobile .tr-viewport,
.tr-radar.tr-mobile .tr-loader-wrap {
  inset: auto;
  top: calc(var(--tr-mobile-hud-h) + var(--tr-mobile-gap));
  left: 50%;
  width: var(--tr-size);
  height: var(--tr-size);
  transform: translateX(-50%);
}
.tr-radar.tr-mobile .tr-svg {
  inset: 0;
  width: 100%;
  height: 100%;
  transform: none;
}

/* HUD — horizontální strip nad radarem */
.tr-radar.tr-mobile .tr-hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  min-width: 0;
  padding: 8px 12px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 9px;
}
.tr-radar.tr-mobile .tr-hud-row {
  flex: 0 0 auto;
  gap: 6px;
}
.tr-radar.tr-mobile .tr-hud-row + .tr-hud-row {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
  padding-left: 10px;
  border-left: 1px solid var(--tr-border);
}
/* Skrýt label, zobrazit jen value pro úsporu místa */
.tr-radar.tr-mobile .tr-hud-row .tr-hud-label {
  display: none;
}

/* Feed — strip pod radarem */
.tr-radar.tr-mobile .tr-feed {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: none;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 9px;
  padding-right: 130px; /* uvolnit místo pro coords vpravo */
}
.tr-radar.tr-mobile .tr-feed-title {
  margin-bottom: 0;
  flex: 0 0 auto;
  white-space: nowrap;
}
.tr-radar.tr-mobile .tr-feed-line {
  flex: 1 1 auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Coords — vpravo dole, sloučené s feed stripem */
.tr-radar.tr-mobile .tr-coords {
  position: absolute;
  right: 12px;
  bottom: 8px;
  font-size: 9px;
  line-height: 1.4;
  text-align: right;
}

/* Auto-aktivace pod 480px — pokud chceš čistou media query variantu,
   stačí na .tr-radar přidat class .tr-mobile přes JS, nebo zabalit
   pravidla výše do @media (max-width: 480px) bez .tr-mobile selectoru. */
@media (max-width: 480px) {
  .tr-radar.tr-auto-mobile {
    --tr-size: min(86vw, 340px);
    --tr-mobile-hud-h: 36px;
    --tr-mobile-feed-h: 32px;
    --tr-mobile-gap: 12px;
    width: 100%;
    height: calc(var(--tr-size) + var(--tr-mobile-hud-h) + var(--tr-mobile-feed-h) + 2 * var(--tr-mobile-gap));
    max-width: 420px;
    margin: 0 auto;
  }
  .tr-radar.tr-auto-mobile .tr-corner { display: none; }
  .tr-radar.tr-auto-mobile .tr-viewport,
  .tr-radar.tr-auto-mobile .tr-loader-wrap {
    inset: auto;
    top: calc(var(--tr-mobile-hud-h) + var(--tr-mobile-gap));
    left: 50%;
    width: var(--tr-size);
    height: var(--tr-size);
    transform: translateX(-50%);
  }
  .tr-radar.tr-auto-mobile .tr-svg {
    inset: 0;
    width: 100%;
    height: 100%;
    transform: none;
  }
  .tr-radar.tr-auto-mobile .tr-hud {
    position: absolute; top: 0; left: 0; right: 0;
    min-width: 0; padding: 8px 12px;
    display: flex; flex-direction: row;
    align-items: center; justify-content: space-between;
    gap: 8px; font-size: 9px;
  }
  .tr-radar.tr-auto-mobile .tr-hud-row { flex: 0 0 auto; gap: 6px; }
  .tr-radar.tr-auto-mobile .tr-hud-row + .tr-hud-row {
    margin-top: 0; padding-top: 0; border-top: none;
    padding-left: 10px; border-left: 1px solid var(--tr-border);
  }
  .tr-radar.tr-auto-mobile .tr-hud-row .tr-hud-label { display: none; }
  .tr-radar.tr-auto-mobile .tr-feed {
    position: absolute; left: 0; right: 0; bottom: 0;
    max-width: none; padding: 8px 12px 8px 12px;
    padding-right: 130px;
    display: flex; align-items: center; gap: 10px; font-size: 9px;
  }
  .tr-radar.tr-auto-mobile .tr-feed-title { margin-bottom: 0; flex: 0 0 auto; white-space: nowrap; }
  .tr-radar.tr-auto-mobile .tr-feed-line {
    flex: 1 1 auto; white-space: nowrap;
    overflow: hidden; text-overflow: ellipsis;
  }
  .tr-radar.tr-auto-mobile .tr-coords {
    position: absolute; right: 12px; bottom: 8px;
    font-size: 9px; line-height: 1.4; text-align: right;
  }
}