/* Variables */
:root {
    --primary-color: #0d47a1;
    --primary-hover: #1565c0;
    --primary-dark: #1a237e;
    --text-color: #2c3e50;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --transition-base: all 0.3s ease;
}

/* Navbar & Logo */
.navbar {
    background-color: #fff;
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    display: flex;
    align-items: center;
    padding: 0;
}

.navbar-logo {
    height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    margin-right: 0.5rem;
}

/* Navigation Menu */
.nav-menu-item {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 1.2rem !important;
    color: var(--text-color) !important;
    transition: var(--transition-base);
    margin: 0 0.2rem;
}

.nav-menu-item:hover {
    color: var(--primary-color) !important;
    background-color: var(--light-bg);
    border-radius: 4px;
}

.nav-menu-item.active {
    color: var(--primary-color) !important;
    font-weight: 600;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: 1rem;
}

.lang-link {
    font-size: 1.2rem;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    transition: transform 0.2s ease;
    text-decoration: none;
    color: var(--primary-color);
}

.lang-link:hover {
    transform: scale(1.1);
    background-color: #e3f2fd;
    text-decoration: none;
}

.lang-link.active {
    background-color: #bbdefb;
    font-weight: bold;
}

@media (max-width: 991.98px) {
    .language-switcher {
        margin: 1rem 0;
        justify-content: center;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: white;
    padding: 80px 0;
    aspect-ratio: 16/9;
    width: 100%;
    height: auto;
}

/* Features Section */
.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card {
    transition: transform 0.3s ease-in-out;
    border: none;
    box-shadow: var(--shadow-md);
}

.feature-card:hover {
    transform: translateY(-5px);
}

/* Security Section */
.security-section {
    background-color: var(--light-bg);
    padding: 80px 0;
}

.tech-icon {
    font-size: 3rem;
    color: var(--primary-color);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    padding: 60px 0;
}

/* Typography */
.section-heading {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

/* Media Queries */
@media (max-width: 991.98px) {
    .language-switcher-nav {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu-item {
        padding: 0.8rem 1rem !important;
    }
}

@media (max-width: 768px) {
    .navbar-logo {
        height: 32px;
        max-width: 160px;
    }
}

@media (max-width: 576px) {
    .navbar-logo {
        height: 28px;
        max-width: 140px;
    }
}

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .navbar-logo {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

@media (min-width: 1200px) {
    .navbar-logo {
        height: 48px;
        max-width: 240px;
    }
}

/* Utilities */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-light {
    background-color: var(--light-bg) !important;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}