:root {
  --bg-void: #050507;
  --bg-iron: #12090a;
  --armor-red: #8f1018;
  --armor-red-deep: #3b070b;
  --reactor-blue: #6ff3ff;
  --reactor-blue-soft: rgba(111, 243, 255, 0.52);
  --gold: #f5c86a;
  --gold-hot: #ffdf8b;
  --gold-dim: #9b6f2e;
  --panel: rgba(18, 11, 12, 0.72);
  --panel-strong: rgba(36, 10, 14, 0.82);
  --panel-border: rgba(245, 200, 106, 0.42);
  --text-main: #fff1d1;
  --text-dim: #caa979;
  --warn: #ffd98a;
  --danger: #ff756f;
  --success: #88f8ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: "Rajdhani", "Space Grotesk", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at 50% 42%, rgba(80, 10, 13, 0.82) 0%, rgba(18, 5, 7, 0.92) 28%, #050507 71%),
    linear-gradient(145deg, #21090c 0%, #08090d 58%, #181005 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(111, 243, 255, 0.14) 0 8%, transparent 18%),
    conic-gradient(from 12deg at 50% 50%, transparent 0 8%, rgba(245, 200, 106, 0.18) 9% 10%, transparent 11% 25%, rgba(143, 16, 24, 0.2) 26% 28%, transparent 29% 100%),
    linear-gradient(90deg, rgba(245, 200, 106, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(245, 200, 106, 0.028) 1px, transparent 1px);
  background-size: auto, auto, 58px 58px, 58px 58px;
  opacity: 0.92;
  animation: reactor-pan 18s linear infinite;
}

body::after {
  z-index: 20;
  background:
    radial-gradient(circle at center, transparent 0 42%, rgba(0, 0, 0, 0.34) 73%, rgba(0, 0, 0, 0.74) 100%),
    linear-gradient(120deg, rgba(255, 216, 128, 0.08), transparent 28%, rgba(111, 243, 255, 0.06) 72%, transparent);
  mix-blend-mode: screen;
  opacity: 0.5;
}

@keyframes reactor-pan {
  from {
    background-position: 0 0, 0 0, 0 0, 0 0;
  }
  to {
    background-position: 0 0, 0 0, 58px 58px, -58px 58px;
  }
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  isolation: isolate;
}

#app::before,
#app::after {
  content: "";
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

#app::before {
  width: min(54vw, 620px);
  aspect-ratio: 1;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 0 35%, rgba(111, 243, 255, 0.18) 36% 37%, transparent 39% 48%, rgba(245, 200, 106, 0.2) 49% 50%, transparent 52%),
    conic-gradient(from 0deg, transparent 0 7%, rgba(245, 200, 106, 0.42) 8% 9%, transparent 10% 22%, rgba(111, 243, 255, 0.22) 23% 24%, transparent 25% 100%);
  filter: drop-shadow(0 0 36px rgba(111, 243, 255, 0.24));
  opacity: 0.56;
  animation: reactor-spin 14s linear infinite;
}

#app::after {
  inset: 0;
  background:
    linear-gradient(115deg, transparent 0 46%, rgba(245, 200, 106, 0.12) 46.2% 46.55%, transparent 47%),
    linear-gradient(245deg, transparent 0 50%, rgba(143, 16, 24, 0.18) 50.2% 50.8%, transparent 51%),
    repeating-linear-gradient(0deg, rgba(255, 228, 161, 0.025) 0 1px, transparent 1px 8px);
  opacity: 0.72;
}

@keyframes reactor-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

#webcam,
#three-canvas,
#debug-canvas,
#scan-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#webcam {
  object-fit: cover;
  transform: scaleX(-1);
  opacity: 0;
  transition: opacity 240ms ease;
  z-index: 1;
}

#three-canvas {
  z-index: 2;
  filter: drop-shadow(0 18px 38px rgba(0, 0, 0, 0.42));
}

#debug-canvas {
  z-index: 3;
  pointer-events: none;
}

#scan-overlay {
  z-index: 3;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 50%, rgba(111, 243, 255, 0.1), transparent 22%),
    linear-gradient(to bottom, rgba(245, 200, 106, 0.07) 1px, transparent 1px),
    repeating-linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 0 1px, rgba(0, 0, 0, 0.04) 2px 4px);
  background-size: 100% 100%, 100% 54px, 100% 4px;
  opacity: 0.42;
  animation: scan-shift 8s linear infinite;
}

@keyframes scan-shift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(16px);
  }
}

#mode-chip,
#gesture-chip {
  position: absolute;
  top: 22px;
  z-index: 4;
  padding: 10px 16px 9px;
  border: 1px solid rgba(245, 200, 106, 0.48);
  background:
    linear-gradient(135deg, rgba(86, 9, 15, 0.72), rgba(22, 11, 12, 0.72) 58%, rgba(100, 65, 24, 0.52)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), transparent);
  color: var(--gold-hot);
  clip-path: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  backdrop-filter: blur(14px) saturate(1.25);
  -webkit-backdrop-filter: blur(14px) saturate(1.25);
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.34), inset 0 0 18px rgba(245, 200, 106, 0.08);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

#mode-chip {
  left: 22px;
}

#gesture-chip {
  left: 206px;
  color: var(--reactor-blue);
  border-color: rgba(111, 243, 255, 0.46);
}

#status-panel,
#calibration-console {
  display: none;
}

#status-panel {
  position: absolute;
  right: 20px;
  top: 20px;
  width: min(320px, calc(100vw - 40px));
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 16px 16px 12px;
  z-index: 4;
  backdrop-filter: blur(8px);
}

#status-panel h2,
#calibration-console h2,
#debug-panel h2 {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold-hot);
  text-transform: uppercase;
}

#status-panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

#status-panel li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.8rem;
  padding: 6px 0;
  border-bottom: 1px solid rgba(245, 200, 106, 0.14);
}

#status-panel li span,
#calibration-console .cal-row label {
  color: var(--text-dim);
}

#status-panel li strong {
  font-weight: 700;
  color: var(--text-main);
  text-align: right;
}

#control-dock {
  position: absolute;
  left: 22px;
  top: 78px;
  z-index: 4;
  pointer-events: auto;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  max-width: min(740px, calc(100vw - 44px));
}

#control-dock button,
#calibration-console .cal-actions button,
#start-btn {
  font-family: "Rajdhani", sans-serif;
  text-transform: uppercase;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

#calibrate-btn,
#flip-btn,
#avatar-btn,
#light-btn,
#debug-btn,
#camera-debug-btn,
#landmark-debug-btn,
#bones-debug-btn {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(245, 200, 106, 0.46);
  background:
    linear-gradient(135deg, rgba(129, 15, 24, 0.82), rgba(41, 10, 12, 0.72) 54%, rgba(126, 84, 34, 0.5)),
    linear-gradient(90deg, rgba(255, 232, 166, 0.12), transparent 36%);
  color: #fff1cf;
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  padding: 10px 17px 9px;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  font-weight: 700;
  backdrop-filter: blur(10px) saturate(1.3);
  -webkit-backdrop-filter: blur(10px) saturate(1.3);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.34), inset 0 0 18px rgba(255, 213, 128, 0.08);
  transition: transform 140ms ease, filter 140ms ease, border-color 140ms ease;
}

#calibrate-btn::after,
#flip-btn::after,
#avatar-btn::after,
#light-btn::after,
#debug-btn::after,
#camera-debug-btn::after,
#landmark-debug-btn::after,
#bones-debug-btn::after,
#start-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 0 38%, rgba(255, 255, 255, 0.28) 48%, transparent 58% 100%);
  transform: translateX(-125%);
  transition: transform 520ms ease;
  pointer-events: none;
}

#calibrate-btn:hover,
#flip-btn:hover,
#avatar-btn:hover,
#light-btn:hover,
#debug-btn:hover,
#camera-debug-btn:hover,
#landmark-debug-btn:hover,
#bones-debug-btn:hover,
#start-btn:hover {
  filter: brightness(1.1) saturate(1.15);
  border-color: rgba(255, 223, 139, 0.78);
}

#calibrate-btn:hover::after,
#flip-btn:hover::after,
#avatar-btn:hover::after,
#light-btn:hover::after,
#debug-btn:hover::after,
#camera-debug-btn:hover::after,
#landmark-debug-btn:hover::after,
#bones-debug-btn:hover::after,
#start-btn:hover::after {
  transform: translateX(125%);
}

#calibrate-btn:active,
#flip-btn:active,
#avatar-btn:active,
#light-btn:active,
#debug-btn:active,
#camera-debug-btn:active,
#landmark-debug-btn:active,
#bones-debug-btn:active,
#start-btn:active {
  transform: translateY(1px) scale(0.995);
}

#calibrate-btn:disabled,
#flip-btn:disabled,
#avatar-btn:disabled,
#light-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#flip-btn {
  background:
    linear-gradient(135deg, rgba(163, 97, 26, 0.78), rgba(52, 22, 9, 0.72) 56%, rgba(245, 200, 106, 0.28)),
    linear-gradient(90deg, rgba(255, 244, 205, 0.16), transparent);
}

#avatar-btn {
  min-width: 210px;
  border-color: rgba(111, 243, 255, 0.5);
  background:
    linear-gradient(135deg, rgba(12, 74, 88, 0.78), rgba(18, 10, 14, 0.74) 54%, rgba(184, 124, 40, 0.42)),
    linear-gradient(90deg, rgba(111, 243, 255, 0.18), transparent 44%);
  color: #e9fdff;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.34), 0 0 22px rgba(111, 243, 255, 0.16);
}

#light-btn {
  min-width: 150px;
  border-color: rgba(255, 223, 139, 0.58);
  background:
    linear-gradient(135deg, rgba(169, 93, 20, 0.78), rgba(20, 11, 13, 0.74) 54%, rgba(41, 145, 160, 0.36)),
    linear-gradient(90deg, rgba(255, 238, 178, 0.18), transparent 44%);
  color: #fff4cf;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.34), 0 0 22px rgba(245, 200, 106, 0.15);
}

#debug-btn,
#camera-debug-btn,
#landmark-debug-btn,
#bones-debug-btn {
  border-color: rgba(111, 243, 255, 0.34);
  background:
    linear-gradient(135deg, rgba(14, 51, 61, 0.72), rgba(13, 16, 22, 0.72) 58%, rgba(85, 24, 30, 0.45)),
    linear-gradient(90deg, rgba(111, 243, 255, 0.12), transparent 42%);
  color: #dafcff;
}

#debug-panel {
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: min(430px, calc(100vw - 44px));
  min-height: 118px;
  max-height: 29vh;
  overflow: auto;
  background:
    linear-gradient(145deg, rgba(30, 8, 10, 0.78), rgba(8, 13, 18, 0.74) 62%, rgba(72, 45, 16, 0.46)),
    linear-gradient(90deg, rgba(245, 200, 106, 0.08), transparent);
  border: 1px solid rgba(245, 200, 106, 0.34);
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
  padding: 13px 15px;
  z-index: 4;
  backdrop-filter: blur(12px) saturate(1.25);
  -webkit-backdrop-filter: blur(12px) saturate(1.25);
  box-shadow: 0 20px 58px rgba(0, 0, 0, 0.4), inset 0 0 24px rgba(245, 200, 106, 0.06);
}

#debug-panel h2 {
  color: var(--reactor-blue);
}

#debug-log {
  margin: 0;
  white-space: pre-wrap;
  font-size: 0.72rem;
  line-height: 1.42;
  color: rgba(255, 236, 196, 0.82);
  font-variant-numeric: tabular-nums;
}

#calibration-console {
  position: absolute;
  left: 20px;
  top: 122px;
  width: min(360px, calc(100vw - 40px));
  background: var(--panel-strong);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 12px 14px;
  z-index: 4;
  pointer-events: auto;
  backdrop-filter: blur(8px);
}

#calibration-console .cal-row {
  display: grid;
  grid-template-columns: 88px 1fr 60px;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

#calibration-console .cal-row label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

#calibration-console .cal-row select,
#calibration-console .cal-row input[type="range"] {
  width: 100%;
}

#calibration-console .cal-row select {
  border-radius: 10px;
  border: 1px solid rgba(245, 200, 106, 0.28);
  background: rgba(19, 10, 12, 0.8);
  color: var(--text-main);
  padding: 6px 8px;
  font-size: 0.78rem;
}

#calibration-console .cal-row span {
  font-size: 0.72rem;
  color: #ffe8ad;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

#calibration-console .cal-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

#calibration-console .cal-actions button {
  flex: 1;
  border: 1px solid rgba(245, 200, 106, 0.46);
  background: linear-gradient(120deg, rgba(132, 20, 27, 0.58), rgba(112, 72, 28, 0.42));
  color: #fff0cf;
  border-radius: 999px;
  padding: 9px 12px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  font-weight: 700;
}

#start-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 42%, rgba(111, 243, 255, 0.18) 0 8%, transparent 19%),
    radial-gradient(circle at 50% 48%, rgba(245, 200, 106, 0.16) 0 24%, transparent 52%),
    radial-gradient(circle at 18% 12%, rgba(143, 16, 24, 0.58), transparent 32%),
    linear-gradient(145deg, rgba(7, 5, 6, 0.94), rgba(21, 5, 8, 0.9) 54%, rgba(7, 10, 14, 0.92));
  z-index: 10;
  pointer-events: auto;
}

#start-overlay::before {
  content: "";
  position: absolute;
  width: min(70vw, 760px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 0 29%, rgba(111, 243, 255, 0.32) 30% 31%, transparent 32% 42%, rgba(245, 200, 106, 0.32) 43% 44%, transparent 45%),
    conic-gradient(from 30deg, transparent 0 8%, rgba(245, 200, 106, 0.46) 9% 10%, transparent 11% 22%, rgba(111, 243, 255, 0.28) 23% 24%, transparent 25% 100%);
  filter: blur(0.2px) drop-shadow(0 0 44px rgba(111, 243, 255, 0.22));
  opacity: 0.9;
  animation: start-reactor 12s linear infinite;
}

#start-overlay.hidden {
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms ease;
}

@keyframes start-reactor {
  to {
    transform: rotate(360deg);
  }
}

.panel {
  position: relative;
  width: min(560px, calc(100vw - 44px));
  padding: 34px 34px 30px;
  text-align: center;
  background:
    linear-gradient(145deg, rgba(42, 8, 12, 0.84), rgba(9, 11, 16, 0.84) 62%, rgba(88, 55, 18, 0.62)),
    linear-gradient(90deg, rgba(255, 245, 201, 0.09), transparent 38%, rgba(111, 243, 255, 0.08));
  border: 1px solid rgba(245, 200, 106, 0.48);
  clip-path: polygon(24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%, 0 24px);
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.58),
    inset 0 0 40px rgba(245, 200, 106, 0.08),
    0 0 70px rgba(143, 16, 24, 0.2);
  backdrop-filter: blur(18px) saturate(1.24);
  -webkit-backdrop-filter: blur(18px) saturate(1.24);
  z-index: 1;
}

.panel::before,
.panel::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.panel::before {
  inset: 10px;
  border: 1px solid rgba(111, 243, 255, 0.2);
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
}

.panel::after {
  left: 14%;
  right: 14%;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-hot), var(--reactor-blue), transparent);
  box-shadow: 0 0 18px rgba(245, 200, 106, 0.7);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--reactor-blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.panel h1 {
  margin: 0;
  font-family: "Bebas Neue", "Rajdhani", sans-serif;
  font-size: clamp(3rem, 8vw, 5.4rem);
  line-height: 0.88;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  color: #fff4d4;
  text-shadow:
    0 0 12px rgba(245, 200, 106, 0.38),
    0 4px 0 rgba(70, 8, 12, 0.9),
    0 18px 36px rgba(0, 0, 0, 0.46);
}

.panel p {
  width: min(410px, 100%);
  margin: 18px auto 0;
  color: rgba(255, 232, 190, 0.78);
  font-size: 1rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

#start-btn {
  position: relative;
  overflow: hidden;
  margin-top: 24px;
  width: 100%;
  border: 1px solid rgba(255, 229, 153, 0.76);
  clip-path: polygon(16px 0, 100% 0, calc(100% - 16px) 100%, 0 100%);
  padding: 15px 18px 14px;
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  color: #23070a;
  background:
    linear-gradient(120deg, #b61622 0%, #e23a2f 34%, #f5c86a 76%, #fff0aa 100%);
  box-shadow: 0 18px 42px rgba(143, 16, 24, 0.36), 0 0 28px rgba(245, 200, 106, 0.22);
}

#start-note {
  min-height: 1.2em;
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--warn);
  letter-spacing: 0.03em;
}

body.full-avatar #webcam {
  opacity: 0;
}

body.force-camera #webcam {
  opacity: 0.68 !important;
}

body.debug-off #debug-canvas,
body.debug-off #debug-panel {
  display: none;
}

@media (max-width: 840px) {
  body::after {
    opacity: 0.38;
  }

  #app::before {
    width: 92vw;
    opacity: 0.42;
  }

  #mode-chip,
  #gesture-chip {
    top: auto;
    bottom: 16px;
    padding: 9px 12px 8px;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

  #mode-chip {
    left: 12px;
  }

  #gesture-chip {
    left: 146px;
    right: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  #control-dock {
    left: 12px;
    right: 12px;
    top: 14px;
    max-width: none;
    gap: 8px;
  }

  #calibrate-btn,
  #flip-btn,
  #avatar-btn,
  #light-btn,
  #debug-btn,
  #camera-debug-btn,
  #landmark-debug-btn,
  #bones-debug-btn {
    padding: 9px 11px 8px;
    font-size: 0.66rem;
    letter-spacing: 0.07em;
  }

  #debug-panel {
    left: 12px;
    right: 12px;
    width: auto;
    bottom: 64px;
    max-height: 22vh;
  }

  .panel {
    padding: 28px 24px 24px;
  }

  .panel h1 {
    font-size: clamp(2.8rem, 17vw, 4.4rem);
  }

  .panel p {
    font-size: 0.94rem;
  }
}