:root {
  --bg: #000;
  --panel-bg: rgba(8, 8, 12, 0.78);
  --panel-border: rgba(255, 255, 255, 0.18);
  --text: #fff;
  --muted: #b4b9c7;
  --accent: #00ffff;
  --danger: #ff5555;
  --ok: #4ade80;
  --warn: #f59e0b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow: hidden;
  min-height: 100dvh;
  background-color: var(--bg);
  color: var(--text);
  font-family: "Courier New", monospace;
}

canvas {
  display: block;
}

.hidden {
  display: none !important;
}

#ui {
  position: absolute;
  top: 10%;
  width: 100%;
  text-align: center;
  color: #fff;
  pointer-events: none;
  z-index: 10;
}

h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  margin: 0;
  letter-spacing: 10px;
  font-weight: 900;
  text-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  background: linear-gradient(to bottom, #fff, #888);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

#technique-name {
  font-size: clamp(0.85rem, 2.6vw, 1.2rem);
  color: var(--accent);
  margin-top: 12px;
  font-weight: bold;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

#honored-one-message {
  position: fixed;
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.94);
  z-index: 50;
  font-size: clamp(1.6rem, 6vw, 4rem);
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  color: #fff;
  text-shadow: 0 0 24px rgba(187, 0, 255, 0.85), 0 0 60px rgba(187, 0, 255, 0.55);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#honored-one-message.is-visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

#video-container {
  position: absolute;
  bottom: 2%;
  left: 18%;
  transform: translateX(-50%) scaleX(-1);
  width: min(85vw, 450px);
  height: min(42vh, 320px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  z-index: 20;
  background-color: #000;
  border-radius: 25px;
  overflow: hidden;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.9);
}

video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

#output_canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.08'/%3E%3C/svg%3E");
}

#control-panel {
  position: absolute;
  right: 16px;
  top: 16px;
  z-index: 30;
  width: min(355px, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  overflow-y: auto;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 12px;
  backdrop-filter: blur(8px);
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

#technique-test-panel {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  z-index: 32;
  width: min(1040px, calc(100vw - 24px));
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  background: rgba(7, 9, 12, 0.78);
  backdrop-filter: blur(7px);
}

.technique-test-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.technique-test-title {
  font-size: 0.82rem;
  color: #b2f4ff;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#technique-test-live {
  font-size: 0.76rem;
  padding: 6px 10px;
}

#technique-test-list {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.technique-test-btn {
  white-space: nowrap;
  font-size: 0.72rem;
  padding: 6px 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.technique-test-btn.is-active,
#technique-test-live.is-active {
  color: var(--accent);
  border-color: rgba(0, 255, 255, 0.78);
  box-shadow: 0 0 18px rgba(0, 255, 255, 0.22);
}

#technique-test-status {
  margin-top: 4px;
  font-size: 0.76rem;
  color: var(--muted);
}

.panel-row {
  display: grid;
  grid-template-columns: 84px 1fr;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

label {
  color: var(--muted);
  font-size: 0.85rem;
}

select,
button,
input[type="checkbox"] {
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(16, 16, 22, 0.95);
  color: #fff;
  border-radius: 8px;
  padding: 8px 10px;
  font-family: inherit;
}

.panel-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 6px;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#status-pill {
  margin-top: 10px;
  display: inline-block;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

#status-pill[data-state="idle"] { color: var(--muted); }
#status-pill[data-state="starting"] { color: var(--warn); }
#status-pill[data-state="running"] { color: var(--ok); }
#status-pill[data-state="error"] { color: var(--danger); }

#status-message {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

#diagnostics {
  margin-top: 8px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  font-size: 0.77rem;
  color: var(--muted);
  display: grid;
  gap: 4px;
}

#model-status {
  color: #9fe7ff;
}

#inference-source {
  color: #c6ffd4;
}

#tracking-metrics {
  color: #f6ddb6;
}

#gesture-help {
  margin-top: 8px;
  font-size: 0.82rem;
}

#gesture-help ul {
  margin: 8px 0 0;
  padding-left: 16px;
}

#dev-tools {
  margin-top: 10px;
  padding: 8px;
  border: 1px solid rgba(0, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(0, 38, 44, 0.35);
}

.dev-title {
  font-size: 0.82rem;
  margin-bottom: 6px;
  color: #8ff6ff;
}

.dev-row {
  margin-bottom: 6px;
}

.dev-buttons {
  margin-bottom: 8px;
}

.dev-toggle-row {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

#dev-capture-stats {
  margin-top: 8px;
  font-size: 0.74rem;
  color: #bcefff;
}

#dev-force-status {
  margin-top: 8px;
  font-size: 0.74rem;
  color: #ffe9be;
}

#fps {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--muted);
}

.opt-in-note {
  margin-top: 4px;
  font-size: 0.72rem;
  line-height: 1.4;
  color: var(--muted);
}

#confirm-prompt {
  position: absolute;
  left: 50%;
  bottom: calc(2% + 260px);
  transform: translateX(-50%);
  z-index: 33;
  width: min(360px, calc(100vw - 24px));
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(0, 255, 255, 0.28);
  background: rgba(7, 9, 12, 0.88);
  backdrop-filter: blur(7px);
  box-shadow: 0 0 24px rgba(0, 255, 255, 0.12);
}

#confirm-prompt-text {
  font-size: 0.86rem;
  color: var(--text);
}

#confirm-prompt-text strong {
  color: var(--accent);
}

.confirm-prompt-buttons {
  margin-top: 8px;
}

#confirm-prompt-correct {
  margin-top: 8px;
  width: 100%;
}

#confirm-prompt-submit {
  margin-top: 8px;
  width: 100%;
}

@media (max-width: 900px) {
  #confirm-prompt {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 48vh + 60px);
  }
}

@media (max-width: 900px) {
  body {
    min-height: 100dvh;
  }

  #ui {
    top: calc(env(safe-area-inset-top, 0px) + 8px);
  }

  h1 {
    letter-spacing: 6px;
  }

  #technique-name {
    letter-spacing: 2px;
    margin-top: 8px;
  }

  #control-panel {
    left: 10px;
    right: 10px;
    top: auto;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 10px);
    width: auto;
    max-height: 46vh;
    padding: 10px;
    border-radius: 12px;
  }

  #video-container {
    top: calc(env(safe-area-inset-top, 0px) + 92px);
    bottom: auto;
    left: 50%;
    width: min(96vw, 430px);
    height: min(34vh, 250px);
    border-radius: 16px;
  }

  #technique-test-panel {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 48vh + 16px);
    width: calc(100vw - 20px);
    border-radius: 10px;
    padding: 8px;
  }
}

@media (max-width: 600px) {
  .panel-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  label {
    font-size: 0.78rem;
  }

  select,
  button,
  input[type="checkbox"] {
    min-height: 42px;
    font-size: 16px;
  }

  .panel-buttons {
    grid-template-columns: 1fr 1fr;
  }

  #status-message,
  #gesture-help,
  #fps {
    font-size: 0.76rem;
  }

  #technique-test-live,
  .technique-test-btn {
    min-height: 38px;
    font-size: 0.76rem;
  }

  .technique-test-title,
  #technique-test-status {
    font-size: 0.72rem;
  }
}

@media (max-height: 720px) and (max-width: 900px) {
  #video-container {
    height: min(28vh, 220px);
    top: calc(env(safe-area-inset-top, 0px) + 78px);
  }

  #control-panel {
    max-height: 52vh;
  }

  #technique-test-panel {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 56vh + 12px);
  }
}