:root {
    --primary: #64ffda;
    --secondary: #00d2ff;
    --bg-dark: #0a192f;
    --bg-light: #112240;
    --text-main: #e6f1ff;
    --text-muted: #8892b0;
    --glass-bg: rgba(17, 34, 64, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --gradient: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
    --shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
    --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-light);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

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

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background: rgba(100, 255, 218, 0.1);
    transform: translateY(-3px);
}

.btn-glow {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.4);
    border: none;
}

.btn-glow:hover {
    box-shadow: 0 0 30px rgba(0, 210, 255, 0.6);
    transform: translateY(-3px);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.text-center { text-align: center; }
.mb-5 { margin-bottom: 3rem; }
.text-primary { color: var(--primary); }

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(10, 25, 47, 0.95);
    box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--secondary);
    letter-spacing: 1px;
}

.logo span {
    color: var(--text-main);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-main);
}

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

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-main);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.85); /* Dark overlay */
}

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

.hero-subtitle {
    color: var(--primary);
    font-family: monospace;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    display: block;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #e6f1ff, #8892b0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

/* Stats Section */
.stats-section {
    padding: 4rem 0;
    background: var(--bg-light);
    border-bottom: 1px solid var(--glass-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-dark);
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* About Section */
.about {
    padding: 6rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-img {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.about-img img {
    border-radius: 8px;
    filter: grayscale(100%) contrast(1.2);
    transition: var(--transition);
}

.about-img:hover img {
    filter: none;
}

.about-img::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary);
    border-radius: 8px;
    z-index: -1;
    transition: var(--transition);
}

.about-img:hover::after {
    top: 10px;
    left: 10px;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.feature-list li {
    margin-bottom: 10px;
    color: var(--text-muted);
}

.feature-list i {
    color: var(--primary);
    margin-right: 10px;
}

/* Services Section */
.services {
    padding: 6rem 0;
    background: var(--bg-light);
}

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

.service-card {
    background: var(--bg-dark);
    padding: 2.5rem;
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

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

/* Innovation Section */
.innovation {
    padding: 6rem 0;
    position: relative;
}

.innovation-content {
    background: linear-gradient(rgba(10, 25, 47, 0.9), rgba(10, 25, 47, 0.9)), url('../images/innovation.jpg');
    background-size: cover;
    background-attachment: fixed;
    padding: 4rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid var(--glass-border);
}

.tech-tags {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.tag {
    background: rgba(100, 255, 218, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--primary);
}

/* Footer */
footer {
    background: #020c1b;
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--glass-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: var(--text-main);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-col p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--text-muted);
    font-size: 1.2rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 70%;
        background: var(--bg-light);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.4s;
        box-shadow: -5px 0 15px rgba(0,0,0,0.5);
    }
    .nav-links.active { right: 0; }
    .menu-toggle { display: block; z-index: 1001; }
    .about-grid, .stats-grid { grid-template-columns: 1fr; }
    .innovation-content { padding: 2rem; }
}