/**
 * AIDEX Components Styles
 * Header, Navigation, Footer - Modern Tech Design
 */

/* ==================== HEADER & NAVIGATION ==================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--color-border-secondary);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background: rgba(10, 14, 39, 0.95);
    border-bottom-color: var(--color-border-accent);
    box-shadow: 0 4px 30px rgba(0, 105, 255, 0.1);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1536px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Logo */
.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: transform var(--transition-base);
}

.header-logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    background: linear-gradient(135deg, var(--color-primary-400), var(--color-secondary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Desktop Navigation */
.desktop-nav {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-500));
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: var(--color-primary-400);
    background: rgba(0, 105, 255, 0.1);
}

.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-left: var(--space-6);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

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

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(20px);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-6);
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform var(--transition-base);
}

.mobile-menu-overlay.active .mobile-menu-content {
    transform: translateY(0);
}

.mobile-menu-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.mobile-menu-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.mobile-nav-menu {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-8) 0;
}

.mobile-nav-menu li {
    margin-bottom: var(--space-2);
}

.mobile-nav-menu a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.mobile-nav-menu a:hover,
.mobile-nav-menu a.active {
    color: var(--color-text-primary);
    background: rgba(0, 105, 255, 0.1);
    border-color: var(--color-border-accent);
    transform: translateX(4px);
}

.mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.mobile-nav-actions .btn {
    width: 100%;
}

/* ==================== FOOTER ==================== */

.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border-primary);
    padding: var(--space-16) 0;
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary-500), transparent);
    opacity: 0.5;
}

.footer-content {
    max-width: 1536px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

/* Footer Brand */
.footer-brand {
    max-width: 350px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
}

.footer-logo-text {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--color-primary-400), var(--color-secondary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-description {
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: rgba(0, 105, 255, 0.1);
    border-color: var(--color-border-accent);
    color: var(--color-primary-400);
    transform: translateY(-2px);
}

/* Footer Links */
.footer-section h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

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

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links a {
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
    transition: all var(--transition-base);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-primary-400);
    transform: translateX(4px);
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border-secondary);
}

.footer-copyright {
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
}

.footer-bottom-links {
    display: flex;
    gap: var(--space-6);
    list-style: none;
}

.footer-bottom-links a {
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
    transition: color var(--transition-base);
}

.footer-bottom-links a:hover {
    color: var(--color-primary-400);
}

/* ==================== SCROLL TO TOP ==================== */

.scroll-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    border: none;
    border-radius: var(--radius-xl);
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-glow);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-lg);
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-brand {
        grid-column: span 2;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    /* Header Mobile */
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 1000;
    }
    
    .header-container {
        height: 64px;
        padding: 0 var(--space-4);
    }
    
    .header-logo {
        gap: var(--space-2);
    }
    
    .logo-icon {
        width: 36px;
        height: 36px;
    }
    
    .logo-icon img {
        width: 36px !important;
        height: 36px !important;
    }
    
    .logo-text {
        font-size: 1.25rem !important;
    }
    
    /* Mobile Menu Enhanced */
    .mobile-menu-content {
        padding: var(--space-8) var(--space-4);
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .mobile-nav-menu {
        margin: 0 0 var(--space-6) 0;
    }
    
    .mobile-nav-menu li {
        margin-bottom: var(--space-3);
    }
    
    .mobile-nav-menu a {
        padding: var(--space-4) var(--space-5);
        font-size: var(--text-lg);
        border-radius: var(--radius-2xl);
    }
    
    /* Footer Mobile */
    .site-footer {
        padding: var(--space-12) 0;
    }
    
    .footer-content {
        padding: 0 var(--space-4);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        margin-bottom: var(--space-8);
    }
    
    .footer-brand {
        grid-column: 1;
        max-width: 100%;
        text-align: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-description {
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-section {
        text-align: center;
    }
    
    .footer-section h4 {
        margin-bottom: var(--space-3);
    }
    
    .footer-links a {
        display: block;
        padding: var(--space-2) 0;
    }
    
    .footer-links a:hover {
        transform: none;
        padding-left: var(--space-2);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
        padding-top: var(--space-6);
    }
    
    .footer-bottom-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-4);
    }
}

@media (max-width: 480px) {
    /* Header Mobile Small */
    .header-container {
        height: 56px;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    .logo-icon img {
        width: 32px !important;
        height: 32px !important;
    }
    
    .logo-text {
        font-size: 1.1rem !important;
    }
    
    .mobile-menu-toggle {
        width: 32px;
        height: 32px;
    }
    
    .mobile-nav-menu a {
        padding: var(--space-3) var(--space-4);
        font-size: var(--text-base);
    }
    
    /* Footer Mobile Small */
    .footer-logo-icon {
        width: 40px !important;
        height: 40px !important;
    }
    
    .footer-logo-icon img {
        width: 40px !important;
        height: 40px !important;
    }
    
    .footer-logo-text {
        font-size: var(--text-xl) !important;
    }
    
    .footer-description {
        font-size: var(--text-sm);
    }
    
    .social-link {
        width: 36px;
        height: 36px;
    }
    
    .scroll-to-top {
        bottom: var(--space-4);
        right: var(--space-4);
        width: 40px;
        height: 40px;
    }
}

/* ==================== SECTION HEADERS ==================== */

.section-header {
    margin-bottom: var(--space-16);
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(0, 105, 255, 0.1);
    border: 1px solid rgba(0, 105, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-primary-400);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-black);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 700px;
}

.section-header.text-center .section-description {
    margin-left: auto;
    margin-right: auto;
}

/* ==================== PAGE HERO ==================== */

.page-hero {
    padding: var(--space-32) 0 var(--space-24);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 105, 255, 0.15), transparent 70%);
    pointer-events: none;
}

.page-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.page-title {
    font-size: var(--text-6xl);
    font-weight: var(--font-black);
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.page-description {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 700px;
    margin: 0 auto;
}

/* ==================== CTA SECTION ==================== */

.cta-section {
    background: linear-gradient(135deg, var(--color-primary-600), var(--color-secondary-600));
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.1;
}

.cta-content {
    position: relative;
    text-align: center;
    padding: var(--space-20) 0;
}

.cta-content h2 {
    font-size: var(--text-5xl);
    font-weight: var(--font-black);
    color: white;
    margin-bottom: var(--space-4);
}

.cta-content p {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
}

.cta-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-white {
    background: white;
    color: var(--color-primary-600);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.btn-outline-white {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.btn-outline-white:hover {
    background: white;
    color: var(--color-primary-600);
}