@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Quicksand:wght@400;700&display=swap');

/* ─── VARIABLES GLOBALES ─── */
:root {
  --bg-fallback: #feeaf0;
  --panel: rgba(255, 255, 255, 0.9);
  --accent: #ffb6c1;
  --accent-hover: #ff99aa;
  --accent2: #b0e0e6;
  --text: #5d4037;
  --muted: #a1887f;
  --border: #f8bbd0;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
}

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

body {
  background-color: var(--bg-fallback);
  color: var(--text);
  font-family: 'Quicksand', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  position: relative;
}

/* ─── CAPA DE FONDO Y RENDERIZADO ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url('assets/background/background.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  pointer-events: none;
  z-index: 0;
  background-color: rgba(255, 234, 240, 0.3);
  background-blend-mode: overlay;
}

/* ─── NAVEGACIÓN Y ESTADO DE CONEXIÓN ─── */
header {
  width: 100%;
  padding: 20px 40px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 2px solid var(--border);
  background: var(--panel);
  backdrop-filter: blur(5px);
  position: relative;
  z-index: 10;
  border-radius: 0 0 20px 20px;
  box-shadow: var(--shadow);
}

.logo {
  font-family: 'Fredoka One', cursive;
  font-size: 2.2rem;
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--accent), #ff80ab);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--muted);
  transition: all 0.3s;
  margin-left: auto;
  border: 2px solid #fff;
}

.status-dot.active {
  background: var(--accent);
  box-shadow: 0 0 10px rgba(255, 182, 193, 0.7);
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 5px rgba(255, 182, 193, 0.5);
  }

  50% {
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(255, 182, 193, 0.8);
  }
}

.status-label {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 1px;
  text-transform: capitalize;
  font-weight: 700;
}

/* ─── LAYOUT PRINCIPAL ─── */
main {
  width: 100%;
  max-width: 1200px;
  padding: 30px 20px;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  position: relative;
  z-index: 10;
}

/* ─── INTERFAZ DE CAPTURA DE VIDEO ─── */
.cam-panel {
  position: relative;
  border: 3px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: #fff;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
}

#videoEl {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  display: block;
}

#canvasEl {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: scaleX(-1);
}

.cam-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cam-overlay::before,
.cam-overlay::after,
.cam-panel::before,
.cam-panel::after {
  display: none;
}

.gesture-label {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 2px solid var(--accent);
  border-radius: 15px;
  padding: 8px 25px;
  font-family: 'Fredoka One', cursive;
  font-size: 1.4rem;
  letter-spacing: 1px;
  color: var(--text);
  z-index: 6;
  white-space: nowrap;
  transition: opacity 0.3s;
  box-shadow: 0 4px 15px rgba(255, 182, 193, 0.4);
}

/* ─── PANEL DE CONTROL Y RESULTADOS ─── */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ─── VISUALIZADOR DE FEEDBACK VISUAL ─── */
.gesture-display {
  border: 3px solid var(--border);
  border-radius: 20px;
  background: var(--panel);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow);
}

.gesture-display .placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: capitalize;
  font-weight: 700;
}

.gesture-display .placeholder .icon {
  font-size: 4rem;
  opacity: 0.2;
}

#gestureImage {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
  padding: 25px;
  animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
  from {
    transform: scale(0.3) rotate(-15deg);
    opacity: 0;
  }

  to {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
}

.gesture-name-display {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--accent2);
  color: var(--text);
  font-family: 'Fredoka One', cursive;
  font-size: 1rem;
  letter-spacing: 1px;
  padding: 5px 15px;
  border-radius: 10px;
  display: none;
  box-shadow: 0 4px 10px rgba(176, 224, 230, 0.5);
}

/* ─── LISTADO DE RECONOCIMIENTO ─── */
.section-title {
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: capitalize;
  color: var(--text);
  font-weight: 700;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}

.gesture-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  overflow-y: auto;
  max-height: 240px;
  padding-right: 6px;
}

.gesture-list::-webkit-scrollbar {
  width: 6px;
}

.gesture-list::-webkit-scrollbar-track {
  background: transparent;
}

.gesture-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.gesture-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 0.85rem;
  transition: all 0.2s;
  cursor: default;
  background: #fff;
}

.gesture-item.detected {
  border-color: var(--accent);
  background: rgba(255, 182, 193, 0.1);
  color: var(--text);
  font-weight: 700;
  transform: translateX(5px);
}

.gesture-item .emoji {
  font-size: 1.6rem;
  flex-shrink: 0;
}

.gesture-item .name {
  flex: 1;
  letter-spacing: 0.5px;
}

.gesture-item .indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  transition: all 0.2s;
}

.gesture-item.detected .indicator {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

/* ─── ACCIONES DE USUARIO ─── */
#startBtn {
  width: 100%;
  padding: 14px;
  background: #fff;
  border: 3px solid var(--accent);
  color: var(--accent);
  font-family: 'Fredoka One', cursive;
  font-size: 1.2rem;
  letter-spacing: 2px;
  cursor: pointer;
  border-radius: 15px;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(255, 182, 193, 0.3);
}

#startBtn:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 182, 193, 0.5);
}

#startBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  border-color: var(--muted);
  color: var(--muted);
  background: #f5f5f5;
  transform: translateY(0);
  box-shadow: none;
}

/* ─── MONITOREO DE PRECISIÓN ─── */
.conf-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--muted);
}

.conf-bar {
  flex: 1;
  height: 6px;
  background: #f5f5f5;
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.conf-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #ff80ab);
  width: 0%;
  transition: width 0.2s;
}

.no-hand-msg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: capitalize;
  background: rgba(255, 255, 255, 0.8);
  z-index: 3;
  transition: opacity 0.3s;
  backdrop-filter: blur(2px);
}

/* ─── ADAPTACIÓN RESPONSIVE ─── */
@media (max-width: 768px) {
  main {
    grid-template-columns: 1fr;
    padding: 20px 15px;
  }

  header {
    padding: 15px 20px;
    flex-wrap: wrap;
  }

  .logo {
    font-size: 1.8rem;
  }

  .side-panel {
    order: 2;
  }

  .cam-panel {
    order: 1;
  }
}