/* ==========================================================================
   Header Matrix Architecture & Link State Blueprint 
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2.2rem 0;
    z-index: 1500;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: padding 0.5s var(--premium-bezier), background-color 0.5s var(--premium-bezier), border-bottom 0.5s var(--premium-bezier);
}

/* Sticky Header Configuration State Overwrite */
.site-header.scrolled {
    padding: 1.2rem 0;
    background-color: rgba(10, 10, 12, 0.92);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 4rem;
}

/* Monospaced Logotype Brand Core Signature Graphic */
.brand-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-color) !important;
    text-decoration: none;
    letter-spacing: -0.04em;
    position: relative;
}

.brand-logo .logo-dot {
    color: var(--accent-color);
    display: inline-block;
    text-shadow: 0 0 15px var(--accent-color);
    animation: pulseDotGlow 3s infinite ease-in-out;
}

/* Horizontal Floating Navigation Capsule Track */
.desktop-nav {
    display: block;
}

.desktop-nav .nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    background: rgba(20, 20, 23, 0.4);
    padding: 0.5rem 2rem;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

.nav-item {
    font-family: var(--font-body);
    text-decoration: none;
    color: var(--text-muted) !important;
    font-size: 0.88rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
    padding: 0.4rem 0;
    display: inline-block;
}

.nav-item:hover, 
.nav-item.active {
    color: var(--text-color) !important;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition-smooth);
    transform: translateX(-50%);
    box-shadow: 0 0 10px var(--accent-color);
}

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

/* Navigation Action Trigger Groups Layout Blueprint */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* High-Contrast Architectural Premium Capsule CTA Trigger Look */
.btn-apply-premium {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background-color: var(--accent-color);
    color: #ffffff !important;
    text-transform: uppercase;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    padding: 0.75rem 1.6rem;
    border-radius: 100px;
    box-shadow: 0 4px 12px rgba(255, 94, 0, 0.15);
}

.btn-apply-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 94, 0, 0.35);
    background-color: #ff7315;
}

.btn-apply-premium svg {
    width: 10px;
    height: 10px;
    transition: transform 0.4s var(--premium-bezier);
}

.btn-apply-premium:hover svg {
    transform: translate(1px, -1px);
}

/* Custom Vector Hamburg Menu System Trigger */
.menu-toggle-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 14px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.menu-toggle-btn .line {
    width: 100%;
    height: 2px;
    background-color: var(--text-color);
    transition: var(--transition-smooth);
}

.menu-toggle-btn.active .line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-toggle-btn.active .line:nth-child(2) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Screen Full Screen Navigation Block Overlay */
.mobile-navigation-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-color);
    z-index: 1400;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s var(--premium-bezier), visibility 0.5s var(--premium-bezier);
}

.mobile-navigation-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-links {
    list-style: none;
    text-align: center;
}

.mobile-nav-links li {
    margin: 2rem 0;
    overflow: hidden;
}

.mobile-item {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-muted) !important;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition-smooth);
    transform: translateY(60px);
}

.mobile-navigation-overlay.open .mobile-item {
    transform: translateY(0);
}

.mobile-item:hover {
    color: var(--text-color) !important;
}

.mobile-apply-btn {
    color: var(--accent-color) !important;
}

@keyframes pulseDotGlow {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 2px var(--accent-color)); }
    50% { transform: scale(1.2); filter: drop-shadow(0 0 12px var(--accent-color)); }
}

/* Responsive Adaptive Interface Adjustments */
@media (max-width: 1024px) {
    .desktop-nav { display: none; }
    .menu-toggle-btn { display: flex; }
    .site-header { padding: 1.6rem 0; }
    .site-header.scrolled { padding: 1rem 0; }
    .nav-container { padding: 0 2.5rem; }
}

/* ==========================================================================
   Structural Master Footer Interface
   ========================================================================== */
.site-footer {
    border-top: 1px solid var(--border-color);
    background-color: #050507;
    padding: 6rem 0 3.5rem 0;
}

.footer-primary-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 4rem;
    margin-bottom: 1rem;
}

.footer-info-brand-block .footer-logo {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.footer-brand-tagline {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.65;
    max-width: 320px;
}

.footer-links-column-block h4 {
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-color);
    margin-bottom: 1.8rem;
}

.footer-links-column-block a {
    display: block;
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    transition: var(--transition-smooth);
}

.footer-links-column-block a:hover {
    color: var(--accent-color);
    transform: translateX(4px);
}

.footer-bottom-copyright-bar {
    border-top: 1px solid var(--border-color);
    padding-top: 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom-copyright-bar p {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.footer-legal-subtext {
    font-size: 0.82rem !important;
    opacity: 0.6;
}

/* Mail */
.footer-right-card { 
    text-align: center;
    margin-bottom: 2rem;
}

.footer-email-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--accent-color);
    letter-spacing: 0.05em;
    font-weight: 700;
}

.footer-secure-mail {
    color: var(--accent-orange);
    font-weight: 700;
    font-size: 1.1rem;
    display: inline-block;
    margin: 4px 0 12px;
}

.footer-secure-mail:hover { text-decoration: underline; }
.footer-copyright { color: var(--text-gray); font-size: 0.85rem; }

@media (max-width: 768px) {
    .vanguard-nav { padding: 20px 24px; }
    .footer-matrix { flex-direction: column; gap: 32px; text-align: center; }
    .footer-right-card { text-align: center; }
}

/* CRITICAL FIX: Enhanced mobile responsive layouts & footer side-by-side array */
@media (max-width: 768px) {
    .container { padding: 0 2rem; }
    .global-padding { padding: 6rem 0; }
    
    /* Collapses Knowledge Base to 1 Mobile Column */
    .hub-resource-interactive-grid { grid-template-columns: 1fr; }
    
    /* REWRITTEN SIDE-BY-SIDE MOBILE FOOTER GRID */
    .footer-primary-grid { 
        display: grid;
        grid-template-columns: repeat(2, 1fr); 
        gap: 2.5rem 1.5rem; 
        margin-bottom: 2rem;
    }

    .footer-info-brand-block {
        /* Makes your branding and description stretch wide across both columns */
        grid-column: span 2; 
        margin-bottom: 1rem;
    }

    .footer-links-column-block {
        /* Guarantees columns break evenly without text truncation quirks */
        min-width: 0; 
    }
    
    .footer-bottom-copyright-bar { 
        display: flex;
        flex-direction: column; 
        gap: 1rem; 
        text-align: center; 
        align-items: center;
    }
    
}