:root {
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --text-color: #18181b;
    --light-text: #71717a;
    --background: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --section-padding: 5rem 2rem;
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    --gradient-2: linear-gradient(135deg, #c084fc 0%, #a855f7 100%);
    --shadow-1: 0 10px 30px -10px rgba(99, 102, 241, 0.2);
    --shadow-2: 0 20px 40px -15px rgba(99, 102, 241, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.header {
    position: fixed;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-1);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.mobile-nav-toggle {
    display: none;
}

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--gradient-1);
    position: relative;
    overflow: hidden;
    padding: var(--section-padding);
}

.hero::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 1rem;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-2);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: 2rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.cta-button {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.cta-button:hover::before {
    width: 300%;
    height: 300%;
}

.cta-button.primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow-1);
}

.cta-button.secondary {
    background: var(--glass-bg);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.cta-button:hover {
    background: var(--secondary-color);
}

.features {
    padding: var(--section-padding);
    background: var(--background);
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.feature-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-2);
    background: var(--gradient-2);
    color: white;
}

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

.about {
    padding: var(--section-padding);
    background: #f3f4f6;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

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

.contact {
    padding: var(--section-padding);
    background: var(--background);
}

.contact h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.contact-form button {
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.contact-form button:hover {
    background: var(--secondary-color);
}

.footer {
    padding: 2rem;
    text-align: center;
    background: #f3f4f6;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--background);
        padding: 1rem;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-nav-toggle {
        display: block;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0.5rem;
    }

    .mobile-nav-toggle span {
        display: block;
        width: 25px;
        height: 3px;
        background: var(--text-color);
        margin: 5px 0;
        transition: 0.3s;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}