/* ============================================================
   KLEIN-07 "SEED LATTICE" — phosphor fractal flight survey
   Palette: phosphor-green variant of the VAST-09 benthic family —
   deep contour teal, living phosphor green, ochre data, brick
   alarm, pale rim blue, chartreuse callout.
   ============================================================ */

:root {
  --p-bg:        #020503;
  --p-panel:     #06100A;
  --p-text:      #7FD0A4;
  --p-dim:       #2E5944;
  --p-accent:    #46E8A0;
  --p-accent-dk: #1B4F41;
  --p-data:      #C2AC44;
  --p-cool:      #8FC2DC;
  --p-alarm:     #A8311F;
  --p-callout:   #D9F09E;

  --f-mono: 'JetBrains Mono', 'IBM Plex Mono', 'Space Mono', ui-monospace, monospace;
}

html, body {
  margin: 0; padding: 0;
  background: var(--p-bg);
  color: var(--p-text);
  font-family: var(--f-mono);
  overflow: hidden;
  width: 100vw; height: 100vh;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
*::-webkit-scrollbar { width: 0; height: 0; }
* { scrollbar-width: none; -ms-overflow-style: none; }

/* ---- VFX overlays ------------------------------------------------------ */

.bg-grid {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background-image: radial-gradient(circle, rgba(70,232,160,0.13) 0.6px, transparent 0.7px);
  background-size: 34px 34px;
  opacity: 0.5;
}
.vignette {
  position: fixed; inset: 0; z-index: 2; pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 46%, transparent 52%, rgba(0,0,0,0.62) 100%),
    radial-gradient(ellipse at 50% 42%, rgba(10,46,32,0.13) 0%, transparent 58%);
}
.scanlines {
  position: fixed; inset: 0; z-index: 60; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom, transparent 0 1px, rgba(0,0,0,0.055) 1px 2px);
}
.grain {
  position: fixed; inset: 0; z-index: 65; pointer-events: none;
  opacity: 0.045; mix-blend-mode: overlay;
}
.grain svg { width: 100%; height: 100%; display: block; }

/* ---- viewport ------------------------------------------------------------ */

#view {
  position: fixed; inset: 0; z-index: 4;
  width: 100vw; height: 100vh; display: block;
  cursor: crosshair;
}

/* ---- press-any-key gate ------------------------------------------------ */

.pak {
  position: fixed; inset: 0; z-index: 10001;
  display: flex; align-items: center; justify-content: center;
  background: var(--p-bg);
  cursor: pointer; user-select: none;
}
.pak-inner { text-align: center; }
.pak-id {
  font: 400 8px/1 var(--f-mono); letter-spacing: 0.34em;
  color: var(--p-dim); text-transform: uppercase; margin-bottom: 18px;
}
.pak-main {
  font: 300 14px/1 var(--f-mono); letter-spacing: 0.32em;
  color: var(--p-accent); text-transform: uppercase;
  text-shadow: 0 0 4px currentColor;
  animation: pak-blink 1.3s infinite;
}
.pak-sub {
  font: 400 8px/1 var(--f-mono); letter-spacing: 0.26em;
  color: var(--p-data); text-transform: uppercase; margin-top: 18px;
  opacity: 0.8;
}
@keyframes pak-blink { 0%,100%{opacity:1} 50%{opacity:.55} }
.pak.gone { display: none; }

@keyframes cathode-boot {
  0%   { opacity: 0; filter: brightness(0.2) contrast(2); transform: scaleY(0.02); }
  20%  { opacity: 1; filter: brightness(2)   contrast(2); transform: scaleY(1); }
  35%  { filter: brightness(0.6) contrast(1.4); }
  100% { filter: brightness(1)   contrast(1); }
}
.hud.booting { animation: cathode-boot 600ms ease-out forwards; transform-origin: center; }

/* ---- HUD ---------------------------------------------------------------- */

.hud {
  position: fixed; inset: 0; z-index: 8;
  pointer-events: none;
  font-family: var(--f-mono);
}
.hud[hidden] { display: none; }
.blk { position: absolute; }

/* ---- micro typography ---------------------------------------------------- */

.h-yel, .h-teal, .h-red {
  font-size: 7px; font-weight: 600; letter-spacing: 0.18em;
  text-transform: uppercase; white-space: nowrap;
}
.h-yel  { color: var(--p-data); }
.h-teal { color: var(--p-accent); }
.h-red  { color: var(--p-alarm); }

.kv {
  display: flex; justify-content: space-between; gap: 10px;
  font-size: 6.5px; line-height: 1.7; letter-spacing: 0.08em;
  color: var(--p-text); white-space: nowrap;
}
.kv .k { color: var(--p-dim); }
.kv .v { color: var(--p-text); }
.kv.amber .v { color: var(--p-data); }
.kv.red   .v { color: var(--p-alarm); text-shadow: 0 0 4px currentColor; }
.kv.cool  .v { color: var(--p-cool); }

/* ---- bracket corners ------------------------------------------------------ */

.br {
  position: absolute; width: 9px; height: 9px;
  border-color: var(--p-accent); border-style: solid; border-width: 0;
  opacity: 0.85; pointer-events: none;
}
.br.tl  { top: -1px; left: -1px;   border-top-width: 1px; border-left-width: 1px; }
.br.tr  { top: -1px; right: -1px;  border-top-width: 1px; border-right-width: 1px; }
.br.bl  { bottom: -1px; left: -1px;  border-bottom-width: 1px; border-left-width: 1px; }
.br.brc { bottom: -1px; right: -1px; border-bottom-width: 1px; border-right-width: 1px; }

/* ---- panels ----------------------------------------------------------------- */

.panel {
  position: relative;
  background: linear-gradient(180deg, rgba(6,16,10,0.55) 0%, rgba(2,5,3,0.72) 100%);
  border: 1px solid rgba(70,232,160,0.16);
  padding: 7px 9px 6px;
}
.panel .p-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 12px; margin-bottom: 5px;
}

/* ---- status pills ------------------------------------------------------------- */

.status-bar {
  left: 2%; top: 2.4%;
  display: flex; gap: 14px; align-items: center;
}
.status-pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 6.5px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--p-text);
  border-left: 1px solid rgba(70,232,160,0.4);
  padding-left: 6px; white-space: nowrap;
}
.status-pill .status-dot {
  width: 4px; height: 4px; background: var(--p-accent);
  box-shadow: 0 0 4px var(--p-accent);
}
.status-pill.data  { color: var(--p-data); }
.status-pill.data .status-dot  { background: var(--p-data); box-shadow: 0 0 4px var(--p-data); }
.status-pill.cool  { color: var(--p-cool); }
.status-pill.cool .status-dot  { background: var(--p-cool); box-shadow: 0 0 4px var(--p-cool); }
.status-pill.alarm { color: var(--p-alarm); animation: pill-blink 1.1s infinite; }
.status-pill.alarm .status-dot { background: var(--p-alarm); box-shadow: 0 0 5px var(--p-alarm); }
@keyframes pill-blink { 0%,100%{opacity:1} 50%{opacity:.45} }

/* ---- timecode strip --------------------------------------------------------------- */

.timecode-bar {
  left: 2%; top: 5.4%;
  display: flex; gap: 18px;
}
.tc-cell {
  display: flex; gap: 6px; align-items: baseline;
  font-size: 6.5px; letter-spacing: 0.12em; white-space: nowrap;
}
.tc-cell .tc-k { color: var(--p-dim); }
.tc-cell .tc-v { color: var(--p-text); }
.tc-cell.data .tc-v { color: var(--p-data); }

/* ---- survey telemetry --------------------------------------------------------------- */

.survey { left: 2%; top: 10.5%; width: 168px; }

/* ---- SH-PANEL ------------------------------------------------------------------------- */

.sh-panel {
  right: 1.6%; top: 8.5%;
  width: 236px;
  max-height: 84vh;
  position: absolute;
  pointer-events: auto;
  background: linear-gradient(180deg, rgba(6,16,10,0.78) 0%, rgba(2,5,3,0.88) 100%);
  border: 1px solid rgba(70,232,160,0.20);
  padding: 8px 10px 8px;
  display: flex; flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.3, 0, 0.2, 1), opacity 0.3s;
}
.sh-panel.tucked { transform: translateX(108%); opacity: 0.0; }
.sh-panel .p-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 12px; margin-bottom: 6px; flex: 0 0 auto;
}
.sh-body { overflow-y: auto; min-height: 0; }

.sh-sect {
  font-size: 6px; font-weight: 600; letter-spacing: 0.22em;
  color: var(--p-dim); text-transform: uppercase;
  margin: 9px 0 5px;
  border-bottom: 1px dotted rgba(70,232,160,0.18);
  padding-bottom: 3px;
}
.sh-sect:first-child { margin-top: 2px; }

.sh-row { margin-bottom: 6px; }
.sh-lab {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 6.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--p-text); margin-bottom: 2px;
}
.sh-val { color: var(--p-data); }

.sh-range {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 12px;
  background: transparent; cursor: ew-resize;
  margin: 0; display: block;
}
.sh-range::-webkit-slider-runnable-track {
  height: 2px;
  background: rgba(70,232,160,0.18);
}
.sh-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 8px; height: 8px; margin-top: -3px;
  background: var(--p-accent);
  box-shadow: 0 0 5px rgba(70,232,160,0.7);
  border: 0; border-radius: 0;
}
.sh-range::-moz-range-track {
  height: 2px; background: rgba(70,232,160,0.18);
}
.sh-range::-moz-range-thumb {
  width: 8px; height: 8px;
  background: var(--p-accent);
  box-shadow: 0 0 5px rgba(70,232,160,0.7);
  border: 0; border-radius: 0;
}

.sh-seg { display: flex; gap: 3px; }
.sh-seg button {
  flex: 1;
  background: rgba(70,232,160,0.05);
  border: 1px solid rgba(70,232,160,0.25);
  color: var(--p-dim);
  font: 600 6px var(--f-mono); letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 0 3px; cursor: pointer;
}
.sh-seg button:hover { color: var(--p-text); border-color: rgba(70,232,160,0.5); }
.sh-seg button.on {
  color: var(--p-bg);
  background: var(--p-accent);
  box-shadow: 0 0 6px rgba(70,232,160,0.45);
}

.sh-row-inline {
  display: flex; justify-content: space-between; align-items: center;
}
.sh-tlab {
  font-size: 6.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--p-text);
}
.sh-tog {
  width: 48px;
  background: rgba(70,232,160,0.05);
  border: 1px solid rgba(70,232,160,0.25);
  color: var(--p-dim);
  font: 600 6px var(--f-mono); letter-spacing: 0.16em;
  padding: 3px 0; cursor: pointer;
}
.sh-tog.on {
  color: var(--p-bg); background: var(--p-accent);
  box-shadow: 0 0 6px rgba(70,232,160,0.45);
}

.sh-btn {
  width: 100%;
  background: rgba(194,172,68,0.07);
  border: 1px solid rgba(194,172,68,0.4);
  color: var(--p-data);
  font: 600 6.5px var(--f-mono); letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 5px 0 4px; cursor: pointer;
  margin: 2px 0 4px;
}
.sh-btn:hover { background: rgba(194,172,68,0.18); text-shadow: 0 0 4px currentColor; }

.sh-hint {
  margin-top: 8px;
  font-size: 6px; letter-spacing: 0.18em;
  color: var(--p-dim); text-transform: uppercase;
  text-align: center;
}

/* ---- footer + crosshair ----------------------------------------------------------------- */

.footer {
  left: 2%; right: 2%; bottom: 2.2%;
  display: flex; justify-content: space-between; gap: 20px;
  font-size: 6.5px; letter-spacing: 0.2em;
  color: var(--p-dim); text-transform: uppercase; white-space: nowrap;
}
.footer .foot-help { color: var(--p-text); opacity: 0.75; }

.xhair {
  position: absolute; left: 50%; top: 50%;
  width: 14px; height: 14px; margin: -7px 0 0 -7px;
  opacity: 0; transition: opacity 0.3s;
}
body.locked .xhair { opacity: 0.8; }
.xh-h, .xh-v { position: absolute; background: var(--p-accent); box-shadow: 0 0 3px currentColor; }
.xh-h { left: 0; right: 0; top: 50%; height: 1px; margin-top: -0.5px; }
.xh-v { top: 0; bottom: 0; left: 50%; width: 1px; margin-left: -0.5px; }

/* ---- value flicker ------------------------------------------------------------------------ */

@keyframes vflick {
  0% { color: var(--p-callout); text-shadow: 0 0 4px currentColor; }
  100% { color: var(--p-data); text-shadow: none; }
}
.flicking { animation: vflick 0.5s ease-out 1; }

/* ---- a11y / perf ----------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}
body.scs-hidden, body.scs-hidden *, body.scs-hidden *::before, body.scs-hidden *::after {
  animation-play-state: paused !important;
}