/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-bg: #1a2332;
    --secondary-bg: #0f1823;
    --accent-color: #3b82f6;
    --text-light: #ffffff;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --card-bg: rgba(30, 41, 59, 0.5);
    --hover-bg: rgba(59, 130, 246, 0.1);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
    color: var(--text-light);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--text-light) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.2rem;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

/* Navigation */
.navbar {
    background: rgba(26, 35, 50, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo img {
    height: 70px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.5)) 
            drop-shadow(0 0 20px rgba(59, 130, 246, 0.3))
            brightness(1.15);
    transition: all 0.3s ease;
}

.logo img:hover {
    filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.6)) 
            drop-shadow(0 0 30px rgba(59, 130, 246, 0.5))
            brightness(1.2);
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid #e0e0e0;
}

.language-switcher {
    border-left: 1px solid var(--border-color);
}

.language-switcher button {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.language-switcher button.active {
    background: var(--accent-color);
    color: var(--text-light);
    border-color: var(--accent-color);
}

.language-switcher button:hover:not(.active) {
    border-color: var(--accent-color);
    color: var(--text-light);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--text-light);
}

.nav-link.active {
    color: var(--accent-color);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    filter: brightness(1.2) contrast(1.1);
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 71, 161, 0.4) 0%, rgba(25, 118, 210, 0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    color: #ffffff;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5), 0 0 20px rgba(59, 130, 246, 0.3);
    filter: brightness(1.1);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #e2e8f0;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.4);
    filter: brightness(1.15);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background: linear-gradient(135deg, var(--accent-color) 0%, #2563eb 100%);
    color: var(--text-light);
    padding: 1.3rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4), 0 0 40px rgba(59, 130, 246, 0.2);
    margin-bottom: 4rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.6), 0 0 50px rgba(59, 130, 246, 0.3);
    background: linear-gradient(135deg, #2563eb 0%, var(--accent-color) 100%);
}

.cta-button svg {
    width: 24px;
    height: 24px;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    background: var(--hover-bg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Info Section */
.info-section {
    background: transparent;
    position: relative;
    z-index: 1;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.info-card-link {
    text-decoration: none;
    display: block;
    cursor: pointer;
}

.info-card-link h3 {
    transition: color 0.3s ease;
}

.info-card-link p {
    transition: color 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    background: var(--hover-bg);
}

.info-card-link:hover h3 {
    color: var(--text-light);
}

.info-card-link:hover p {
    color: var(--text-light);
}

.info-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.info-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.info-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Variants Section */
.variants-section {
    background: transparent;
    position: relative;
    z-index: 1;
}

.variants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.variant-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.variant-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    background: var(--hover-bg);
}

.variant-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.variant-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.variant-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.variant-tag {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.variant-details {
    margin-top: auto;
}

.variant-details p {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.variant-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-top: 0;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.variants-note {
    background: var(--card-bg);
    border: 1px solid var(--accent-color);
    border-left: 4px solid var(--accent-color);
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 2rem;
    backdrop-filter: blur(10px);
}

.variants-note p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.8;
}

.variants-note strong {
    color: var(--accent-color);
}

/* Contact Section */
.contact-section {
    background: transparent;
    position: relative;
    z-index: 1;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.contact-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.contact-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.contact-card a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.1rem;
    transition: opacity 0.3s ease;
}

.contact-card a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.contact-card h3 {
    color: var(--text-light);
}

.contact-info {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    border-radius: 12px;
}

.contact-info p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 3rem 0 1rem;
    position: relative;
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-logo {
    height: 60px;
    margin-bottom: 1rem;
    filter: brightness(1.2);
}

.footer-section p {
    color: #cccccc;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: #999;
}

.footer-bottom a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--text-light);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid,
    .info-grid,
    .variants-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .cta-button {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }

    .section {
        padding: 50px 0;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.info-card,
.variant-card,
.contact-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth Scrolling Enhancement */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}