/* --- Variables de Color y Estilos Globales --- */
:root {
    --primary-color: #00ffff; /* Cian para un look tecnológico */
    --background-color: #050a19;
    --dark-grey: #1a1f2e;
    --light-grey: #a0a8b2;
    --font-family: 'Rajdhani', sans-serif;
    --glow-shadow: 0 0 5px var(--primary-color), 0 0 10px var(--primary-color), 0 0 15px var(--primary-color);
}

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

html, body {
    height: 100%;
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: white;
    overflow: hidden; /* Evita el scroll */
}

/* --- Indicador de Carga --- */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    transition: opacity 0.5s ease;
}

body.loading #loader {
    opacity: 1;
}

body:not(.loading) #loader {
    opacity: 0;
    pointer-events: none;
}

#loader p {
    margin-top: 20px;
    font-size: 1.2em;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--dark-grey);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* --- Contenedor Principal de la App --- */
#app-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100vh;
    padding: 20px;
}

/* --- Encabezado --- */
.main-header {
    width: 100%;
    text-align: center;
    padding-bottom: 15px;
}

.main-header h1 {
    font-size: 2.5em;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: var(--glow-shadow);
    letter-spacing: 4px;
}

.main-header p {
    font-size: 1.2em;
    color: var(--light-grey);
    letter-spacing: 2px;
}

/* --- Contenedor del Vídeo --- */
main {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 800px; /* Ancho máximo para el vídeo */
}

#video-wrapper {
    position: relative;
    width: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 10px;
    box-shadow: var(--glow-shadow);
    background: #000;
    overflow: hidden; /* Asegura que el vídeo no se salga de los bordes redondeados */
}

#video {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
}

/* --- Estilos para los cuadros de detección de Roboflow --- */
.bounding-box {
    position: absolute;
    border: 2px solid var(--primary-color);
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.bounding-box-label {
    position: absolute;
    top: -22px;
    left: -2px;
    background-color: var(--primary-color);
    color: var(--background-color);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.9em;
}

/* --- Pie de Página y Contador de FPS --- */
footer {
    width: 100%;
    padding-top: 15px;
    display: flex;
    justify-content: flex-end;
}

#fps-counter {
    background-color: var(--dark-grey);
    border: 1px solid var(--primary-color);
    padding: 5px 15px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    font-size: 1.1em;
}

#fps-counter span {
    color: var(--light-grey);
    margin-right: 8px;
}

#fps {
    color: var(--primary-color);
    font-weight: 700;
}

/* --- Media Queries para Responsividad --- */
@media (max-width: 640px) {
    #app-container {
        padding: 10px;
    }
    .main-header h1 {
        font-size: 1.8em;
    }
    .main-header p {
        font-size: 1em;
    }
    footer {
        justify-content: center;
    }
}