* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --blue: #5ac8fa;
  --blue-dim: #2a6a8a;
  --blue-glow: rgba(90, 200, 250, 0.5);
  --blue-bright: #8ee4ff;
  --bg: #0a0e14;
  --card-bg: rgba(14, 22, 34, 0.85);
  --card-border: rgba(90, 200, 250, 0.25);
  --text: #c8dce8;
  --text-dim: #5a7a8a;
  --orange: #ff9f43;
  --pink: #ff6b9d;
  --green: #26de81;
  --purple: #a55eea;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, 'SF Pro Display', 'Helvetica Neue', sans-serif;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
  cursor: default;
}

/* ---- Camera overlay ---- */
#camera-overlay {
  position: fixed; inset: 0;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
#camera-overlay.hidden { display: none; }

.overlay-box {
  text-align: center;
  max-width: 400px;
}
.overlay-icon {
  font-size: 64px;
  margin-bottom: 16px;
  animation: pulse-glow 2s ease-in-out infinite;
}
.overlay-box h1 {
  font-size: 32px;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 8px;
}
.overlay-box p {
  color: var(--text-dim);
  margin-bottom: 20px;
  font-size: 14px;
}
#enable-camera {
  background: transparent;
  border: 1px solid var(--blue);
  color: var(--blue);
  padding: 12px 32px;
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}
#enable-camera:hover {
  background: rgba(90, 200, 250, 0.1);
  box-shadow: 0 0 20px var(--blue-glow);
}
.overlay-hint {
  font-size: 11px !important;
  color: var(--text-dim) !important;
  margin-top: 16px !important;
}

/* ---- App ---- */
#app { position: relative; width: 100vw; height: 100vh; cursor: none; }
#app.hidden { display: none; }

/* ---- Zones ---- */
.zone {
  position: absolute;
  border: 1px solid rgba(90, 200, 250, 0.1);
  border-radius: 12px;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.zone-supply  { top: 3%;   left: 2%;  width: 22%; height: 42%; }
.zone-edit    { top: 52%;  left: 2%;  width: 22%; height: 42%; }
.zone-saved   { top: 3%;   right: 2%; width: 22%; height: 90%; }
.zone-complete {
  top: 50%; left: 50%;
  width: 20%; height: 30%;
  transform: translate(-50%, -50%);
  border: 1px dashed rgba(90, 200, 250, 0.08);
  border-radius: 50%;
}
.zone.zone-active {
  border-color: var(--blue);
  box-shadow: 0 0 24px rgba(90, 200, 250, 0.15);
}

/* ---- Zone labels ---- */
.zone-label {
  position: absolute;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-dim);
  z-index: 5;
}
.zone-label-supply  { top: 2%;  left: 3%; }
.zone-label-edit    { top: 51%; left: 3%; }
.zone-label-saved   { top: 2%;  right: 3%; }
.zone-label-complete {
  top: 50%; left: 50%;
  transform: translate(-50%, -180px);
  text-align: center;
}

/* ---- Cards ---- */
.todo-card {
  position: absolute;
  width: 180px;
  min-height: 50px;
  padding: 12px 14px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text);
  user-select: none;
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.15s;
  z-index: 10;
  display: flex;
  align-items: center;
}
.todo-card.hovered {
  border-color: var(--blue);
  box-shadow: 0 0 16px var(--blue-glow), inset 0 0 8px rgba(90, 200, 250, 0.05);
}
.todo-card.grabbed {
  border-color: var(--blue-bright);
  box-shadow: 0 0 28px var(--blue-glow), 0 0 60px rgba(90, 200, 250, 0.15);
  transform: scale(1.05);
  z-index: 20;
}
.todo-card.flinging {
  border-color: var(--blue);
  box-shadow: 0 0 20px var(--blue-glow), 0 0 40px rgba(90, 200, 250, 0.1);
  transform: scale(1.02);
  z-index: 15;
  pointer-events: none;
}
.todo-card.blank {
  border-style: dashed;
  color: var(--text-dim);
  justify-content: center;
}
.todo-card.editing {
  border-color: var(--blue-bright);
  box-shadow: 0 0 20px var(--blue-glow);
}
.todo-card.saved {
  border-color: rgba(90, 200, 250, 0.35);
}
.todo-card.completing {
  animation: suck-in 0.6s ease-in forwards;
  pointer-events: none;
}

/* ---- Black hole ---- */
#black-hole {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80px; height: 80px;
  pointer-events: none;
  z-index: 4;
}
.bh-core {
  position: absolute;
  top: 50%; left: 50%;
  width: 16px; height: 16px;
  background: radial-gradient(circle, #0a0e14 40%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.bh-ring {
  position: absolute;
  top: 50%; left: 50%;
  border: 1px solid rgba(90, 200, 250, 0.12);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: bh-rotate 8s linear infinite;
}
.bh-ring-1 { width: 50px; height: 50px; }
.bh-ring-2 { width: 70px; height: 70px; animation-duration: 12s; animation-direction: reverse; border-color: rgba(90, 200, 250, 0.07); }
.bh-ring-3 { width: 100px; height: 100px; animation-duration: 18s; border-color: rgba(90, 200, 250, 0.04); }

/* ---- Edit input ---- */
#edit-input {
  position: absolute;
  bottom: 8%;
  left: 3%;
  width: 20%;
  padding: 10px 14px;
  background: rgba(14, 22, 34, 0.9);
  border: 1px solid var(--blue);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  z-index: 30;
  box-shadow: 0 0 16px var(--blue-glow);
}
#edit-input.hidden { display: none; }
#edit-input::placeholder { color: var(--text-dim); }

/* ---- Hand canvas ---- */
#hand-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 50;
}

/* ---- HUD ---- */
#hud {
  position: absolute;
  bottom: 12px; right: 16px;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-dim);
  z-index: 60;
  display: flex;
  gap: 16px;
}

/* ---- Mode selector ---- */
#mode-selector {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  gap: 0;
  border: 1px solid rgba(90, 200, 250, 0.2);
  border-radius: 6px;
  overflow: hidden;
}
.mode-btn {
  background: rgba(10, 14, 20, 0.9);
  color: var(--text-dim);
  border: none;
  padding: 8px 24px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.2s;
}
.mode-btn:hover {
  color: var(--text);
  background: rgba(90, 200, 250, 0.05);
}
.mode-btn.active {
  color: var(--blue);
  background: rgba(90, 200, 250, 0.1);
  box-shadow: inset 0 0 12px rgba(90, 200, 250, 0.1);
}

/* ---- Game ---- */
#game {
  position: fixed;
  inset: 0;
  z-index: 5;
}
#game.hidden { display: none; }

#game-canvas {
  width: 100%;
  height: 100%;
}

#game-score {
  position: absolute;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--blue);
  text-shadow: 0 0 20px var(--blue-glow);
  z-index: 10;
}

/* ---- Track toggle (in-game) ---- */
#track-toggle {
  position: absolute;
  top: 50px;
  right: 20px;
  z-index: 10;
  display: flex;
  gap: 0;
  border: 1px solid rgba(90, 200, 250, 0.2);
  border-radius: 6px;
  overflow: hidden;
}
.track-btn {
  background: rgba(10, 14, 20, 0.9);
  color: var(--text-dim);
  border: none;
  padding: 6px 16px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all 0.2s;
}
.track-btn:hover { color: var(--text); }
.track-btn.active {
  color: var(--blue);
  background: rgba(90, 200, 250, 0.1);
}

/* ---- Animations ---- */
@keyframes pulse-glow {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(90, 200, 250, 0.3)); }
  50% { filter: drop-shadow(0 0 20px rgba(90, 200, 250, 0.6)); }
}

@keyframes bh-rotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes suck-in {
  0%   { opacity: 1; transform: scale(1); }
  40%  { transform: scale(1.1) rotate(5deg); }
  100% { opacity: 0; transform: scale(0) rotate(180deg); }
}