:root {
    --bg-base: #080c14;
    --panel-bg: rgba(17, 24, 39, 0.6);
    --panel-border: rgba(255, 255, 255, 0.08);
    --cyber-glow: #00ff66;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
}

body {
    /* Cambio a tipografía sans-serif de alta ingeniería visual */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-base);
    background-image: 
        radial-gradient(rgba(0, 255, 102, 0.15) 1px, transparent 0),
        radial-gradient(rgba(0, 255, 102, 0.05) 2px, transparent 0);
    background-size: 40px 40px;
    background-position: 0 0, 20px 20px;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 20px;
    box-sizing: border-box;
}

/* Header con Glassmorphism moderno */
header {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 50px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.header-content {
    flex: 1;
    min-width: 280px;
}

header h1 {
    font-size: 2.5rem;
    margin: 0;
    font-weight: 800;
    letter-spacing: -0.5px;
}

header h2 {
    color: var(--cyber-glow);
    font-size: 1rem;
    margin: 10px 0 25px 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

/* CAJA DEL CONTADOR ESTILO LED COMPACTO */
.visitor-counter-box {
    background: #022c22;
    border: 1px solid rgba(0, 255, 102, 0.3);
    padding: 15px 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 0 20px rgba(0, 255, 102, 0.1);
    min-width: 140px;
}

.counter-label {
    display: block;
    font-size: 0.65rem;
    color: var(--cyber-glow);
    letter-spacing: 2px;
    margin-bottom: 5px;
    font-family: monospace;
}

.counter-number {
    font-family: monospace;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--cyber-glow);
    letter-spacing: 3px;
    text-shadow: 0 0 10px rgba(0, 255, 102, 0.8);
}

.contact-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
    background: var(--cyber-glow);
    color: #000;
    border-color: var(--cyber-glow);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 255, 102, 0.2);
}

section {
    margin-bottom: 50px;
}

h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 700;
}

h3::after {
    content: '';
    flex-grow: 1;
    height: 1px;
    background: var(--panel-border);
}

/* Tarjetas Flotantes de Cristal Modernas */
.cyber-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.cyber-card:hover {
    border-color: rgba(0, 255, 102, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 255, 102, 0.05);
}

.profile-text p {
    font-size: 1rem;
    line-height: 1.7;
    color: #d1d5db;
    margin: 0 0 20px 0;
}

.profile-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.highlight-box {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--panel-border);
    padding: 15px;
    border-radius: 12px;
    text-align: center;
}

.highlight-box span {
    display: block;
    font-size: 1.5rem;
    color: var(--cyber-glow);
    font-weight: 700;
    margin-bottom: 5px;
}

.highlight-box small {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.cert-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cert-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--panel-border);
    padding: 16px 20px;
    border-radius: 12px;
    transition: all 0.2s ease;
}

.cert-item:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.02);
}

.cert-date {
    color: var(--cyber-glow);
    font-size: 0.75rem;
    background: rgba(0, 255, 102, 0.08);
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 600;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    display: block;
    margin-bottom: 8px;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 0 20px 0;
    line-height: 1.6;
}

.badge {
    background: rgba(255, 255, 255, 0.04);
    color: #e5e7eb;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    display: inline-block;
    margin: 4px 4px 0 0;
    border: 1px solid var(--panel-border);
}

.network-node {
    border-left: 3px solid var(--cyber-glow);
    padding-left: 15px;
    margin: 12px 0;
    font-size: 0.9rem;
}

.zone-trust { border-left-color: #00ff66; }
.zone-dmz { border-left-color: #ffcc00; }
.zone-untrust { border-left-color: #ff0055; }

.img-container {
    margin-top: 25px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--panel-border);
}

.img-container img {
    width: 100%;
    display: block;
}

.img-error {
    padding: 40px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

footer {
    text-align: center;
    margin-top: 80px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}
@media (max-width: 600px) {
    header { flex-direction: column; text-align: center; }
    .visitor-counter-box { width: 100%; box-sizing: border-box; }
}