:root {
    --primary-color: #4A90E2;
    --secondary-color: #50E3C2;
    --text-color: #333333;
    --bg-color: #F5F7FA;
    --white: #FFFFFF;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.menu {
    display: flex;
    list-style-type: none;
}

.menu li {
    margin-left: 30px;
}

.menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.auth-buttons .button {
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.login {
    color: var(--primary-color);
    margin-right: 15px;
    border: 2px solid var(--primary-color);
    background-color: transparent;
    transition: all 0.3s ease;
}

.login:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

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

.signup:hover {
    background-color: #3A7BC8;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
    padding: 150px 0 100px;
    margin-top: 80px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 40px;
}

.cta {
    background-color: var(--white);
    color: var(--primary-color);
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.cta:hover {
    background-color: var(--text-color);
    color: var(--white);
}

.features, .our-mission, .our-team, .join-us {
    padding: 100px 0;
}

.features h2, .our-mission h2, .our-team h2, .join-us h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}

.feature-grid, .team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card, .team-member {
    background-color: var(--white);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover, .team-member:hover {
    transform: translateY(-10px);
}

.feature-card i {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3, .team-member h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.testimonials {
    background-color: var(--white);
    padding: 100px 0;
}

.testimonials h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}

.testimonial-slider {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial {
    text-align: center;
}

.testimonial blockquote {
    font-size: 24px;
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial cite {
    font-size: 18px;
    font-weight: 600;
}

.about-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
    padding: 150px 0 100px;
    margin-top: 80px;
}

.about-hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.about-hero p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 50px 0;
    flex-wrap: wrap;
}

.partner-logo-container {
    position: relative;
}

.partner-logo {
    width: 150px;
    height: 150px;
    object-fit: contain;
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    padding: 10px;
    transition: transform 0.3s ease;
    background-color: var(--white);
}

.partner-logo-container:hover .partner-logo {
    transform: scale(1.05);
}

.speech-bubble {
    position: absolute;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px;
    border-radius: 5px;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease, bottom 0.3s ease;
    pointer-events: none;
    z-index: 1;
}

.speech-bubble::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    border-width: 8px;
    border-style: solid;
    border-color: var(--primary-color) transparent transparent transparent;
    transform: translateX(-50%);
}

.partner-logo-container:hover .speech-bubble {
    opacity: 1;
    bottom: calc(100% + 10px);
}

footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: 50px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 700;
}

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

.footer-links li {
    margin-left: 30px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.copyright {
    text-align: center;
    font-size: 14px;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .menu {
        margin-top: 20px;
        flex-direction: column;
    }

    .menu li {
        margin: 10px 0;
    }

    .auth-buttons {
        margin-top: 20px;
    }

    .hero, .about-hero {
        padding: 100px 0 50px;
    }

    .hero h1, .about-hero h1 {
        font-size: 36px;
    }

    .feature-grid, .team-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-links {
        margin-top: 20px;
        justify-content: center;
    }

    .footer-links li {
        margin: 0 15px;
    }
}