:root {
    --primary-color: #2ecc71;
    --secondary-color: #27ae60;
    --text-color: #333;
    --light-bg: #f9f9f9;
    --dark-bg: #2c3e50;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

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

/* Navbar Styles */
.navbar {
    background: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.logo img {
    height: 40px;
}

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

.nav-links li a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

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

/* Active Navigation Link */
.nav-links a.active {
    color: var(--primary-color);
    font-weight: bold;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #27ae60, #2ecc71, #3498db);
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    margin-top: 60px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 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='0.1'%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;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.1);
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.1));
}

.cta-button {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    border-radius: 50px;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* Sections */
section {
    padding: 5rem 0;
}

section h2 {
    text-align: center;
    margin-bottom: 3rem;
}

/* Features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem;
    background: linear-gradient(145deg, #ffffff, #f5f5f5);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transform: translateY(0);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Team */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.team-member, .team-advisor {
    padding: 2.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.team-member:hover, .team-advisor:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(46, 204, 113, 0.15);
}

.team-member h3, .team-advisor h3 {
    color: var(--dark-bg);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.team-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    gap: 0.5rem;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.team-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

/* Social Links */
.social-links {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: white;
    padding: 3rem 0;
}

.footer .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.footer-links a {
    color: white;
    text-decoration: none;
    margin: 0.5rem 0;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    width: 100%;
    height: 100%;
    background: white;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s, visibility 0.5s;
}

.loader {
    width: 50px;
    height: 50px;
    border: 5px solid var(--light-bg);
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Loading Screen Animation */
@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

.loading-screen.fade-out {
    animation: fadeOut 0.5s ease forwards;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 30px;
    height: 3px;
    background: var(--text-color);
    transition: 0.3s;
    transform-origin: center;
}

.mobile-menu-btn span.rotate-45 {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn span.opacity-0 {
    opacity: 0;
}

.mobile-menu-btn span.rotate-negative-45 {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Stats */
.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    background: linear-gradient(145deg, #ffffff, #f5f5f5);
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Scroll to Top */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.scroll-to-top:hover {
    background: var(--secondary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
    
    .footer .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        align-items: center;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        transform: translateY(-100%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
    }
}

/* Add this at the end of your CSS file for extra visual elements */
.tech-circles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.tech-circle {
    position: absolute;
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: 50%;
}

.tech-circle:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -150px;
    right: -150px;
}

.tech-circle:nth-child(2) {
    width: 200px;
    height: 200px;
    bottom: -100px;
    left: -100px;
}