* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    text-align: center;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 0;
    backdrop-filter: blur(10px);
    min-height: 100vh;
}

h1 {
    margin: 10px 0 20px 0;
    font-size: 1.4em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    line-height: 1.2;
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 100vw;
    margin: 10px 0;
    aspect-ratio: 4/3;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

#video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
    border-radius: 10px;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.status {
    margin: 10px 0;
    padding: 10px;
    border-radius: 8px;
    font-size: 0.9em;
    font-weight: bold;
    word-wrap: break-word;
}

.status.alert {
    background: rgba(76, 175, 80, 0.8);
}

.status.warning {
    background: rgba(255, 193, 7, 0.8);
}

.status.danger {
    background: rgba(244, 67, 54, 0.8);
    animation: pulse 1s infinite;
}

.status.loading {
    background: rgba(33, 150, 243, 0.8);
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.controls {
    margin: 15px 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 0 10px;
}

button {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    padding: 12px 8px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.8em;
    transition: all 0.3s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

button:hover {
    background: rgba(255, 255, 255, 0.3);
}

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

.settings {
    margin: 15px 0;
    text-align: left;
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
}

.settings h3 {
    margin: 0 0 15px 0;
    font-size: 1em;
    text-align: center;
}

.setting-item {
    margin: 15px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-item label {
    font-weight: bold;
    font-size: 0.85em;
}

.setting-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

input[type="range"] {
    flex: 1;
    min-width: 0;
}

.setting-controls span {
    min-width: 40px;
    font-size: 0.8em;
    text-align: right;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin: 15px 0;
    padding: 0 5px;
}

.metric-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 8px;
    text-align: center;
}

.metric-card div:last-child {
    font-size: 0.7em;
    margin-top: 5px;
    opacity: 0.9;
}

.metric-value {
    font-size: 1.2em;
    font-weight: bold;
    color: #4CAF50;
}

.metric-value.warning {
    color: #FF9800;
}

.metric-value.danger {
    color: #F44336;
}

.alert-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 0, 0, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: flashAlert 0.5s infinite;
    padding: 20px;
}

@keyframes flashAlert {
    0%, 100% { opacity: 0.95; }
    50% { opacity: 0.7; }
}

.alert-content {
    background: white;
    color: red;
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    font-size: 1.5em;
    font-weight: bold;
    box-shadow: 0 0 30px rgba(255, 0, 0, 0.8);
    max-width: 90%;
    word-wrap: break-word;
}

.alert-content div {
    font-size: 0.6em;
    margin-top: 15px;
    line-height: 1.3;
}

.loading {
    margin: 10px 0;
    font-size: 0.9em;
    padding: 0 10px;
}

.debug-info {
    margin: 10px 0;
    padding: 10px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 5px;
    font-family: monospace;
    font-size: 0.65em;
    text-align: left;
    max-height: 120px;
    overflow-y: auto;
    line-height: 1.3;
}

.drowsiness-level {
    margin: 10px 0;
    padding: 12px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 0.8em;
    line-height: 1.2;
}

.level-safe {
    background: rgba(76, 175, 80, 0.3);
    border: 2px solid #4CAF50;
}

.level-caution {
    background: rgba(255, 193, 7, 0.3);
    border: 2px solid #FF9800;
}

.level-danger {
    background: rgba(244, 67, 54, 0.3);
    border: 2px solid #F44336;
}

/* Mejoras específicas para móviles */
@media (max-width: 767px) {
    .video-container {
        margin: 5px 0;
        border-radius: 8px;
        aspect-ratio: 16/9;
    }
    
    #video {
        object-fit: cover;
        object-position: center;
    }
}

/* Orientación horizontal en móviles */
@media (max-width: 767px) and (orientation: landscape) {
    .video-container {
        aspect-ratio: 16/9;
        max-height: 60vh;
    }
}

/* Media Queries para diferentes tamaños */
@media (min-width: 768px) {
    .container {
        padding: 20px;
        border-radius: 15px;
        margin: 10px;
        min-height: auto;
    }
    
    h1 {
        font-size: 2em;
        margin: 20px 0 30px 0;
    }
    
    .controls {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    button {
        flex: none;
        min-width: 140px;
        font-size: 0.9em;
        padding: 12px 20px;
    }
    
    .metrics {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .setting-item {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .setting-controls {
        width: 250px;
    }
}

@media (min-width: 1024px) {
    .video-container {
        max-width: 640px;
        margin: 20px auto;
    }
    
    .metrics {
        grid-template-columns: repeat(6, 1fr);
    }
    
    h1 {
        font-size: 2.2em;
    }
}