/* --- Navigation --- */
.nav-portal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 72px; /* Más compacto de base */
    background: rgba(2, 6, 23, 0.7);
    backdrop-filter: blur(16px) saturate(140%);
    border-bottom: 1px solid var(--border-glass);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 var(--sp-2xl);
    transition: var(--trans-normal);
}

.nav-portal.scrolled {
    height: 64px; /* Un poco más de aire que los 60px previos */
    background: rgba(2, 6, 23, 0.9); /* Un aire más profundo */
    box-shadow: 0 4px 30px rgba(0,0,0,0.4);
    backdrop-filter: blur(20px) saturate(160%);
}

.nav-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.nav-logo img {
    max-width: 220px; /* Límite desktop */
    height: auto;
    max-height: 44px; /* Ajuste proporcional */
    transition: var(--trans-normal);
}

.nav-links {
    display: flex;
    gap: var(--sp-2xl); /* Aumento de xl a 2xl para más aire institucional */
    margin-left: var(--sp-3xl);
    flex-grow: 1;
}

.nav-actions {
    display: flex;
    gap: var(--sp-md);
    align-items: center;
}

@media (max-width: 1200px) {
    .nav-logo img { max-width: 190px; } /* Límite tablet */
    .nav-links { gap: var(--sp-lg); margin-left: var(--sp-2xl); }
}

@media (max-width: 768px) {
    .nav-logo img { max-width: 150px; } /* Límite mobile */
    .nav-portal { padding: 0 var(--sp-lg); }
}

.nav-links a {
    position: relative;
    color: var(--text-muted); /* Gris claro institucional suave */
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--trans-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; width: 0; height: 1px;
    background: var(--brand-primary);
    transition: width 0.4s var(--ease-standard);
}

.nav-links a:hover {
    color: var(--text-pure); /* Blanco puro al hover */
}

.nav-links a.active {
    color: var(--brand-primary); /* Cyan corporativo */
    font-weight: 600;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Staggered entry for active state link underline */
.nav-links a::after {
    transition: width 0.4s var(--ease-standard);
}

/* --- Mobile Toggle --- */
.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
    border: none;
    background: transparent;
    padding: 0;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-pure);
    transition: var(--trans-fast);
}

.mobile-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 992px) {
    .mobile-toggle { display: flex; }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-deep);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--trans-normal);
        z-index: 1000;
        gap: 3rem !important;
    }
    
    .nav-links.open {
        right: 0;
    }
    
    .nav-links a {
        font-size: 1.5rem;
        font-weight: 600;
    }
    
    .mobile-only {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        width: 100%;
        max-width: 300px;
    }
    
    .nav-actions {
        display: none !important;
    }
}

.mobile-only { display: none; }
.desktop-only { display: flex; }
@media (max-width: 992px) { .desktop-only { display: none !important; } }

/* --- Buttons --- */
.btn-neon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    background: var(--brand-primary);
    color: var(--bg-deep);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--trans-fast);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-neon:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 210, 255, 0.3);
    filter: brightness(1.1);
}

.btn-ghost {
    background: transparent;
    color: var(--text-pure);
    border: 1px solid var(--border-glass);
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--trans-fast);
    text-transform: uppercase;
}

.btn-ghost:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

/* --- Service Tiers --- */
.service-tier {
    display: flex;
    flex-direction: column;
    height: 100%;
}
.service-tier ul {
    list-style: none;
    margin: 2rem 0;
    flex-grow: 1;
}
.service-tier li {
    margin-bottom: 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.service-tier li::before {
    content: '→';
    color: var(--brand-primary);
    font-family: var(--font-mono);
}

/* --- Bento Cards --- */
.bento-card {
    background: var(--bg-surface);
    border: var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
    position: relative;
    overflow: hidden;
    transition: var(--trans-normal);
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at top right, rgba(0, 210, 255, 0.05), transparent);
    pointer-events: none;
}

.bento-card:hover {
    border-color: var(--brand-primary);
    transform: translateY(-4px);
    background: var(--bg-surface-elevated);
    box-shadow: var(--shadow-premium), var(--shadow-glow);
}

/* --- Footer Premium 2026 --- */
.footer-premium {
    background: var(--bg-deep);
    border-top: 1px solid var(--border-glass);
    padding: var(--sp-3xl) 0 var(--sp-xl);
    position: relative;
    overflow: hidden;
}

.footer-premium::before {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 60%; height: 30%;
    background: radial-gradient(circle, rgba(0, 210, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--sp-3xl);
    margin-bottom: var(--sp-3xl);
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-2xl);
    }
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    max-width: 200px;
    height: auto;
    margin-bottom: var(--sp-lg);
    opacity: 0.9;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-xl);
}

@media (max-width: 600px) {
    .footer-nav {
        grid-template-columns: 1fr;
        gap: var(--sp-xl);
    }
}

.footer-nav-title {
    color: var(--text-pure);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--sp-lg);
}

.footer-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav-list li {
    margin-bottom: 0.8rem;
}

.footer-nav-list a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--trans-fast);
}

.footer-nav-list a:hover {
    color: var(--brand-primary);
    padding-left: 4px;
}

.footer-bottom {
    padding-top: var(--sp-xl);
    border-top: 1px solid rgba(255,255,255,0.05);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.footer-bottom a:hover {
    color: var(--brand-primary);
}

/* --- Badges --- */
.badge-tech {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-pure);
    border: 1px solid var(--border-rich);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* --- FAQ System 2026 --- */
.faq-item {
    border-bottom: 1px solid var(--border-glass);
}

.faq-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--sp-lg) 0;
    background: none;
    border: none;
    color: white;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
}

.faq-icon {
    transition: var(--trans-normal);
    color: var(--brand-primary);
}

.faq-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--dur-feedback) var(--ease-standard);
    overflow: hidden;
}

.faq-content > div {
    min-height: 0;
}

.faq-item.active .faq-content {
    grid-template-rows: 1fr;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

/* --- Form Fields Premium --- */
.form-group {
    margin-bottom: var(--sp-xl);
}

.form-input {
    width: 100%;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-glass);
    padding: var(--sp-md);
    border-radius: var(--radius-md);
    color: white;
    font-family: var(--font-main);
    transition: var(--trans-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--brand-primary);
    background: rgba(255,255,255,0.06);
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.1);
}
/* --- Accessibility & Focus States --- */
:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.nav-links a:focus-visible {
    outline-offset: 8px;
}

.btn-neon:focus-visible, .btn-ghost:focus-visible {
    box-shadow: 0 0 0 4px var(--bg-deep), 0 0 0 6px var(--brand-primary);
    outline: none;
}

/* --- Accessibility: Skip Link --- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--brand-primary);
    color: var(--bg-deep);
    padding: 10px 20px;
    z-index: 2000;
    transition: top 0.2s;
    text-decoration: none;
    font-weight: bold;
    border-radius: 0 0 5px 0;
}

.skip-link:focus {
    top: 0;
}