:root {
  --red: #ff2a2a;
  --red-soft: rgba(255, 42, 42, 0.5);
  --amber: #ffcf76;
  --crt-green: #9dffdf;
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #000;
  font-family: "MS Gothic", "Fixedsys", "Courier New", "Microsoft YaHei UI", monospace;
  color: #fff4f4;
}

body {
  cursor: crosshair;
}

.sky,
.abyss {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.sky {
  background: radial-gradient(circle at 50% -24%, rgba(255, 255, 255, 0.42), transparent 21%);
  opacity: var(--sky-opacity, 0.16);
}

.abyss {
  background:
    radial-gradient(circle at 50% 130%, rgba(0, 0, 0, 1), transparent 42%),
    linear-gradient(to bottom, transparent 35%, rgba(0, 0, 0, 0.86));
  opacity: var(--abyss-opacity, 0.72);
}

#viewport {
  position: fixed;
  inset: 0;
  perspective: 820px;
  perspective-origin: 50% 50%;
  background:
    repeating-linear-gradient(0deg, rgba(255, 0, 0, 0.032) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.018) 0 1px, transparent 1px 128px),
    radial-gradient(circle at center, rgba(255, 0, 0, 0.045), transparent 36%),
    #000;
}

#viewport::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 50% 50%, transparent 0 30%, rgba(0, 0, 0, 0.2) 52%, rgba(0, 0, 0, 0.96) 82%),
    repeating-radial-gradient(circle at 50% 55%, rgba(255, 42, 42, 0.07) 0 2px, transparent 2px 58px);
  pointer-events: none;
}

#camera,
#world,
.mega-floor,
.floor-backdrop,
.row-ring,
.tv-slot {
  position: absolute;
  left: 50%;
  top: 50%;
  transform-style: preserve-3d;
}

#camera,
#world {
  width: 0;
  height: 0;
}

.mega-floor {
  width: 0;
  height: 0;
}

.floor-core {
  position: absolute;
  left: -742px;
  top: -742px;
  width: 1484px;
  height: 1484px;
  pointer-events: none;
  border: 2px solid rgba(255, 34, 34, 0.78);
  border-radius: 50%;
  transform: rotateX(90deg);
  background:
    radial-gradient(circle, transparent 0 45%, rgba(255, 0, 0, 0.14) 46%, transparent 49%),
    repeating-radial-gradient(circle, transparent 0 96px, rgba(255, 42, 42, 0.42) 97px 99px);
  box-shadow:
    0 0 40px rgba(255, 0, 0, 0.28),
    0 0 0 18px rgba(0, 0, 0, 0.86),
    inset 0 0 42px rgba(255, 0, 0, 0.12);
}

.floor-core--top {
  margin-top: -350px;
}

.floor-core--bottom {
  margin-top: 350px;
}

.floor-label {
  position: absolute;
  left: -120px;
  top: -372px;
  width: 260px;
  text-align: center;
  transform: translateZ(6px);
  color: rgba(255, 80, 80, 0.56);
  font-size: 15px;
  letter-spacing: 0;
  text-shadow: 0 0 14px rgba(255, 42, 42, 0.7);
  pointer-events: none;
}

.floor-backdrop {
  width: 0;
  height: 0;
  pointer-events: none;
}

.floor-panel {
  position: absolute;
  left: -98px;
  top: -318px;
  width: 196px;
  height: 636px;
  border-left: 1px solid rgba(255, 255, 255, 0.045);
  border-right: 1px solid rgba(0, 0, 0, 0.45);
  background:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.18) 0 2px, transparent 2px 9px),
    linear-gradient(90deg, rgba(255,255,255,0.045), transparent 22%, transparent 78%, rgba(0,0,0,0.22)),
    radial-gradient(circle at 50% 42%, var(--floor-glow), transparent 62%),
    linear-gradient(rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.28)),
    var(--wallpaper),
    var(--floor-bg);
  background-size: auto, auto, auto, auto, cover, auto;
  background-position: center;
  box-shadow: inset 0 0 64px rgba(0,0,0,0.74);
  opacity: 0.28;
}

.mega-floor[data-variant="cute"] {
  --floor-bg: rgba(68, 24, 88, 0.82);
  --floor-glow: rgba(255, 76, 231, 0.2);
}

.mega-floor[data-variant="steam"] {
  --floor-bg: rgba(61, 39, 18, 0.86);
  --floor-glow: rgba(255, 154, 54, 0.18);
}

.mega-floor[data-variant="slime"] {
  --floor-bg: rgba(0, 56, 42, 0.84);
  --floor-glow: rgba(78, 255, 164, 0.2);
}

.mega-floor[data-variant="weird"] {
  --floor-bg: rgba(20, 18, 30, 0.9);
  --floor-glow: rgba(120, 70, 255, 0.2);
}

.row-ring {
  width: 0;
  height: 0;
}

.tv-slot {
  width: 166px;
  height: 142px;
  margin-left: -83px;
  margin-top: -71px;
  border-radius: 14px;
  transform-style: preserve-3d;
  opacity: 0.72;
  filter: brightness(0.62) saturate(0.62);
  transition: filter 160ms ease, scale 160ms ease, opacity 160ms ease;
  pointer-events: auto;
}

.tv-slot::before {
  content: "";
  display: none;
  position: absolute;
  left: 19%;
  top: 22%;
  width: 53%;
  height: 44%;
  border-radius: 12px;
  background:
    linear-gradient(90deg, transparent, rgba(255,255,255,0.16), transparent),
    radial-gradient(circle at 45% 42%, rgba(184, 255, 243, 0.38), rgba(40, 70, 64, 0.18) 58%, rgba(0, 0, 0, 0.28));
  box-shadow: inset 0 0 24px rgba(152, 255, 237, 0.28), 0 0 22px rgba(109, 255, 236, 0.12);
  opacity: 0.52;
  animation: screenPulse 2.8s steps(6) infinite;
  z-index: 1;
}

.tv-slot::after {
  content: "";
  display: none;
  position: absolute;
  left: 20%;
  top: 24%;
  width: 50%;
  height: 40%;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.1) 0 1px, transparent 1px 4px);
  mix-blend-mode: screen;
  opacity: 0.4;
  z-index: 2;
  pointer-events: none;
}

.tv-screen {
  position: absolute;
  left: var(--screen-x, 18%);
  top: var(--screen-y, 22%);
  width: var(--screen-w, 52%);
  height: var(--screen-h, 42%);
  overflow: hidden;
  border-radius: var(--screen-radius, 8px);
  background: #050505;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.82), 0 0 6px rgba(255, 0, 0, 0.18);
  z-index: 6;
  pointer-events: none;
}

.tv-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.12) 0 1px, transparent 1px 4px);
  mix-blend-mode: screen;
  opacity: 0.28;
  z-index: 2;
  pointer-events: none;
}

.tv-content {
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: auto;
  filter: contrast(1.08) saturate(0.62) brightness(0.58);
  transition: filter 160ms ease;
}

.tv-screen--vacant {
  background:
    linear-gradient(90deg, transparent 0 43%, rgba(255, 42, 42, 0.16) 44% 45%, transparent 46%),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.05) 0 1px, rgba(0,0,0,0.08) 1px 3px),
    radial-gradient(circle at 45% 45%, rgba(150, 255, 235, 0.12), rgba(0, 0, 0, 0.88) 62%),
    #050505;
  animation: vacantSignal 2.6s steps(8) infinite;
}

.tv-screen--vacant::before {
  content: "";
  position: absolute;
  inset: 12% 8%;
  border: 1px solid rgba(255, 42, 42, 0.18);
  box-shadow: inset 0 0 10px rgba(255, 42, 42, 0.08);
  opacity: 0.58;
}

.tv-screen--transit {
  background:
    radial-gradient(circle at 48% 72%, rgba(157, 255, 232, 0.12), transparent 42%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 4px),
    #05070a;
}

.tv-transit-resident {
  position: absolute;
  left: 0;
  bottom: -2%;
  width: 52%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  image-rendering: auto;
  scale: 1.15;
  transform-origin: center 70%;
  opacity: 0;
  z-index: 1;
  filter: contrast(1.04) saturate(0.86) brightness(0.82) drop-shadow(0 0 5px rgba(157, 255, 232, 0.26));
  animation: transit-pass 18s linear infinite;
}

@keyframes transit-pass {
  0% {
    opacity: 0;
    transform: translateX(-78%) translateY(1px);
  }
  8% {
    opacity: 1;
  }
  46% {
    transform: translateX(46%) translateY(-1px);
  }
  88% {
    opacity: 1;
  }
  92%, 100% {
    opacity: 0;
    transform: translateX(178%) translateY(1px);
  }
}

.tv-slot[data-status="vacant"] .tv-frame,
.tv-slot[data-status="away"] .tv-frame {
  filter: contrast(1.05) saturate(0.22) sepia(0.2) brightness(0.42) drop-shadow(0 8px 14px rgba(0, 0, 0, 0.96));
}

.tv-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: auto;
  filter: contrast(1.15) saturate(0.48) sepia(0.22) brightness(0.52) drop-shadow(0 8px 14px rgba(0, 0, 0, 0.96));
  z-index: 3;
  pointer-events: none;
}

.tv-slot[data-tv="0"] { --screen-x: 10%; --screen-y: 12%; --screen-w: 73%; --screen-h: 58%; --screen-radius: 10px; }
.tv-slot[data-tv="1"] { --screen-x: 10%; --screen-y: 12%; --screen-w: 73%; --screen-h: 58%; --screen-radius: 9px; }
.tv-slot[data-tv="2"] { --screen-x: 9%; --screen-y: 11%; --screen-w: 76%; --screen-h: 60%; --screen-radius: 10px; }
.tv-slot[data-tv="3"] { --screen-x: 9%; --screen-y: 11%; --screen-w: 75%; --screen-h: 60%; --screen-radius: 8px; }
.tv-slot[data-tv="4"] { --screen-x: 10%; --screen-y: 12%; --screen-w: 74%; --screen-h: 59%; --screen-radius: 9px; }
.tv-slot[data-tv="5"] { --screen-x: 8%; --screen-y: 9%; --screen-w: 78%; --screen-h: 66%; --screen-radius: 8px; }
.tv-slot[data-tv="6"] { --screen-x: 8%; --screen-y: 9%; --screen-w: 78%; --screen-h: 65%; --screen-radius: 7px; }
.tv-slot[data-tv="7"] { --screen-x: 8%; --screen-y: 10%; --screen-w: 77%; --screen-h: 63%; --screen-radius: 8px; }

.tv-slot:hover,
.tv-slot.is-selected {
  opacity: 1;
  filter: brightness(1.08) saturate(1) drop-shadow(0 0 14px rgba(255, 42, 42, 0.9)) drop-shadow(0 0 24px rgba(255, 207, 118, 0.45));
  scale: 1.07;
}

.tv-slot.is-selected::before {
  opacity: 0.84;
}

.tv-slot:hover .tv-content,
.tv-slot.is-selected .tv-content {
  filter: contrast(1.18) saturate(1.05) brightness(1.06);
}

.tv-slot:hover .tv-frame,
.tv-slot.is-selected .tv-frame {
  filter: contrast(1.13) saturate(0.74) sepia(0.12) brightness(0.78) drop-shadow(0 8px 14px rgba(0, 0, 0, 0.96));
}

.tv-slot:hover .tv-screen--vacant,
.tv-slot.is-selected .tv-screen--vacant {
  background:
    linear-gradient(90deg, transparent 0 38%, rgba(255, 42, 42, 0.44) 39% 42%, transparent 43%),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.22) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.14) 0 1px, rgba(0,0,0,0.16) 1px 3px),
    radial-gradient(circle at 45% 45%, rgba(150, 255, 235, 0.28), rgba(0, 0, 0, 0.74) 62%),
    #050505;
}

.tv-slot[data-variant="angel"]::before {
  box-shadow: inset 0 0 28px rgba(199, 239, 255, 0.45), 0 0 24px rgba(255, 226, 141, 0.28);
}

.tv-slot[data-variant="demon"]::before {
  background: radial-gradient(circle at 50% 48%, rgba(255, 67, 189, 0.5), rgba(45, 0, 24, 0.22));
  box-shadow: inset 0 0 26px rgba(255, 79, 210, 0.45), 0 0 26px rgba(255, 20, 96, 0.3);
}

.tv-slot[data-variant="slime"]::before {
  background: radial-gradient(circle at 48% 44%, rgba(111, 255, 180, 0.52), rgba(19, 95, 81, 0.2));
}

@media (prefers-reduced-motion: reduce) {
  .tv-transit-resident {
    animation: none;
    opacity: 1;
    transform: translateX(34%);
  }

  html[data-preview-motion="force"] .tv-transit-resident {
    opacity: 0;
    animation: transit-pass 18s linear infinite;
  }
}

.hud {
  position: fixed;
  left: 22px;
  top: 18px;
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border: 1px solid rgba(160, 255, 242, 0.22);
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(10px);
  box-shadow: 0 0 30px rgba(255, 0, 0, 0.14), inset 0 0 18px rgba(255, 0, 0, 0.08);
  pointer-events: none;
}

.preview-mark {
  margin-left: 8px;
  color: rgba(190, 224, 214, 0.72);
  font-size: 0.56em;
  letter-spacing: 0.14em;
  vertical-align: 0.14em;
}

.title {
  color: var(--red);
  font-size: 18px;
  font-weight: 700;
  text-shadow: 0 0 10px rgba(255, 42, 42, 0.95);
}

.readout {
  display: flex;
  gap: 10px;
  color: rgba(255, 232, 232, 0.86);
  font-size: 13px;
}

.hint {
  color: rgba(255, 188, 188, 0.66);
  font-size: 12px;
}

.selection {
  position: fixed;
  right: 24px;
  bottom: 22px;
  width: min(320px, calc(100vw - 48px));
  padding: 16px;
  border: 1px solid rgba(255, 42, 42, 0.45);
  background: rgba(0, 0, 0, 0.78);
  box-shadow: 0 0 34px rgba(255, 42, 42, 0.18), inset 0 0 20px rgba(255, 42, 42, 0.08);
}

.selection__label {
  color: var(--amber);
  font-size: 12px;
}

.selection__name {
  margin-top: 6px;
  color: white;
  font-size: 18px;
}

@keyframes screenPulse {
  0%, 100% { opacity: 0.38; transform: translateX(0); }
  45% { opacity: 0.58; transform: translateX(1px); }
  48% { opacity: 0.22; transform: translateX(-2px); }
  52% { opacity: 0.68; transform: translateX(2px); }
}

@keyframes vacantSignal {
  0%, 100% { background-position: 0 0, 0 0, 0 0, center, center; opacity: 0.58; }
  38% { background-position: 18px 0, 0 6px, 3px 0, center, center; opacity: 0.42; }
  42% { background-position: -24px 0, 0 -4px, -5px 0, center, center; opacity: 0.76; }
  46% { background-position: 10px 0, 0 2px, 2px 0, center, center; opacity: 0.48; }
  70% { background-position: 0 0, 0 10px, 6px 0, center, center; opacity: 0.62; }
}