:root {
    --primary: #0056b3;
    --primary-dark: #003d80;
    --secondary: #6c757d;
    --dark: #1a1a1a;
    --light: #f8f9fa;
    --accent: #00d4ff;
    --text: #333;
    --text-muted: #666;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.1);
    transition: var(--transition);
}

header.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.lang-switcher {
    margin-left: 1rem;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
}

.lang-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

.flag-icon {
    font-size: 1.1rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text);
}

/* Sections */
.section {
    padding: 100px 0;
}

.dark-bg {
    background-color: var(--dark);
    color: var(--white);
}

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    background-image: url('tech_bg.png');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.8), rgba(0,0,0,0.4));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.05);
    padding: 3rem 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.card-icon {
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.card-icon svg {
    width: 40px;
    height: 40px;
}

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

/* Features */
.badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    background: rgba(0, 86, 179, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    margin-top: 2rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.feature-list i {
    color: var(--primary);
    width: 20px;
}

.floating-img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* Stats */
.stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    white-space: nowrap;
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

/* Contact */
.contact-card {
    background: var(--light);
    padding: 4rem;
    border-radius: 12px;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-details {
    margin-top: 2rem;
}

.detail {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}

.full-width {
    width: 100%;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
footer {
    padding: 4rem 0;
    background: #0a0a0a;
    color: #888;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 2rem;
    color: var(--white);
    font-weight: 700;
}

.footer-brand img {
    height: 40px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-links a {
    color: #888;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .grid-2 { grid-template-columns: 1fr; gap: 2rem; }
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .contact-card { grid-template-columns: 1fr; padding: 2rem; }
    .section { padding: 60px 0; }
}