:root {
    --core-red: #ff0000;
    --red-glow: rgba(255, 0, 0, 0.6);
    --dark-bg: #0b0b0c;
}

body {
    background-color: #050505;
    color: white;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.status-bar {
    width: 100%;
    background: #000;
    padding: 10px 0;
    display: flex;
    justify-content: center;
    gap: 30px;
    font-size: 12px;
    border-bottom: 1px solid #1a1a1a;
}

.main-container {
    max-width: 1000px;
    width: 90%;
    margin-top: 30px;
    text-align: center;
}

h1 {
    color: var(--core-red);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 20px var(--red-glow);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

#header-monitoramento {
    text-align: left;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255, 0, 0, 0.05);
    border-left: 4px solid var(--core-red);
    border-radius: 4px;
}

.id-label {
    color: var(--core-red); 
    font-size: 10px; 
    font-weight: bold; 
    letter-spacing: 2px;
}

.patient-name-display {
    color: white; 
    font-size: 24px; 
    font-weight: 900; 
    text-transform: uppercase; 
    text-shadow: 0 0 10px var(--red-glow);
}

.heart-monitor {
    background: var(--dark-bg);
    border: 2px solid #1a1a1a;
    border-radius: 15px;
    padding: 20px;
    position: relative;
    box-shadow: 0 0 30px rgba(255, 0, 0, 0.2);
    transition: 0.3s;
}

.critical-alert {
    border-color: var(--core-red);
    box-shadow: 0 0 50px var(--core-red);
    animation: pulse-border 1s infinite;
}

@keyframes pulse-border {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

#heartCanvas {
    width: 100%;
    height: 250px;
    background: #000;
    border-radius: 10px;
}

.engine-label {
    position: absolute; 
    top: 15px; 
    right: 25px; 
    color: #ff0000; 
    font-size: 11px; 
    font-weight: bold;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.stat-card {
    background: #0a0a0a;
    padding: 25px;
    border-radius: 10px;
    border: 2px solid var(--core-red) !important;
    box-shadow: 0 0 15px var(--red-glow);
    transition: 0.3s;
}

.stat-value {
    font-size: 38px;
    font-family: 'Courier New', monospace;
    color: var(--core-red);
    text-shadow: 0 0 10px var(--core-red);
    font-weight: bold;
}

.label { font-size: 11px; color: #888; text-transform: uppercase; letter-spacing: 1px; }

.nav-buttons {
    margin-top: 40px;
    padding-bottom: 40px;
}

.btn-voltar {
    display: inline-block;
    margin: 10px;
    padding: 15px 40px;
    border: 1px solid var(--core-red);
    color: var(--core-red);
    text-decoration: none;
    font-weight: bold;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: 0.3s;
}

.btn-voltar:hover { background: var(--core-red); color: #000; }