:root {
    --bg-dark-blue: #0a192f;
    --bg-light-blue: #112240;
    --text-light: #ccd6f6;
    --text-white: #e6f1ff;
    --accent-blue: #64ffda;
    --accent-sky: #3b82f6;
    
    --font-header: 'Poppins', sans-serif;
    --font-body: 'Lato', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark-blue);
    color: var(--text-light);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

h1, h2, h3, h4 {
    font-family: var(--font-header);
    font-weight: 600;
    color: var(--text-white);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; text-align: center; }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--accent-blue);
    transition: all 0.3s ease;
}

a:hover {
    opacity: 0.8;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-header);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: var(--bg-dark-blue);
}

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

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

.btn-secondary:hover {
    background: rgba(100, 255, 218, 0.1);
}

.navbar {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--bg-light-blue);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.navbar .logo {
    font-family: var(--font-header);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-white);
}

.navbar .logo i {
    color: var(--accent-blue);
}

.nav-menu {
    display: flex;
    align-items: center;
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--text-light);
    font-family: var(--font-header);
    font-weight: 400;
}

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

.nav-cta-btn {
    margin-left: 2rem;
    display: inline-block;
}

.menu-toggle,
.nav-close {
    display: none;
    font-size: 1.5rem;
    color: var(--text-white);
    background: none;
    border: none;
    cursor: pointer;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 768px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }

    .navbar .container {
        padding: 0 1.5rem;
    }

    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--bg-light-blue);
        z-index: 101;
        padding: 4rem 2rem 2rem;
        flex-direction: column;
        align-items: flex-start;
        box-shadow: -5px 0 15px rgba(0,0,0,0.2);
        transition: right 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    .nav-menu.active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-links li {
        margin: 0;
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 1rem 0;
        font-size: 1.2rem;
    }
    
    .nav-links li:hover {
        background: none;
    }

    .nav-cta-btn {
        margin: 2rem 0 0 0;
        width: 100%;
        text-align: center;
    }

    .nav-close {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
    }

    .hero {
        min-height: 70vh;
        text-align: left;
    }
    
    .hero .container {
        padding-top: 4rem;
    }

    .hero .cta-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .pricing-card.popular {
        transform: scale(1);
    }
    
    section {
        padding: 4rem 0;
    }
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 70px;
}

.hero .container {
    max-width: 800px;
}

.hero h1 {
    background: linear-gradient(90deg, var(--text-white), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

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

.hero .cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-light-blue);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    border-top: 4px solid var(--accent-sky);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

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

.pricing-card {
    background: var(--bg-light-blue);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    border: 2px solid var(--bg-light-blue);
    transition: all 0.3s ease;
}

.pricing-card h3 {
    color: var(--accent-sky);
}

.price {
    font-size: 3rem;
    font-family: var(--font-header);
    font-weight: 700;
    color: var(--text-white);
    margin: 1rem 0;
}

.price span {
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-light);
}

.pricing-card ul {
    list-style: none;
    margin: 1.5rem 0;
    text-align: left;
}

.pricing-card ul li {
    margin-bottom: 0.75rem;
    padding-left: 2rem;
    position: relative;
}

.pricing-card ul li::before {
    content: '\f00c';
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--accent-blue);
    position: absolute;
    left: 0;
    top: 4px;
}

.pricing-card.popular {
    border-color: var(--accent-blue);
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.1);
}

.testimonial-card {
    background: var(--bg-light-blue);
    padding: 2rem;
    border-radius: 8px;
    border-left: 5px solid var(--accent-blue);
    max-width: 700px;
    margin: 2rem auto 0;
}

.testimonial-card p {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 1rem;
}

.testimonial-author {
    font-weight: 700;
    color: var(--text-white);
}

#cta {
    background-color: var(--bg-light-blue);
    text-align: center;
}

#cta .container {
    max-width: 700px;
}

#cta h2 {
    margin-bottom: 2rem;
}

.footer {
    background: #06101f;
    padding: 3rem 0;
    text-align: center;
}

.footer .social-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.footer .social-links a {
    font-size: 1.5rem;
    color: var(--text-light);
}

.footer .social-links a:hover {
    color: var(--accent-blue);
}

.footer .copyright {
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }

    .navbar .container {
        padding: 0 1rem;
    }

    .menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-dark-blue);
        flex-direction: column;
        align-items: center;
        padding: 1rem 0;
        border-bottom: 1px solid var(--bg-light-blue);
    }

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

    .nav-links li {
        margin: 0;
        padding: 1rem 0;
        width: 100%;
        text-align: center;
    }

    .nav-links li:hover {
        background: var(--bg-light-blue);
    }

    .hero {
        min-height: 70vh;
        text-align: left;
    }

    .hero .container {
        padding-top: 4rem;
    }

    .hero .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .pricing-card.popular {
        transform: scale(1);
    }

    section {
        padding: 4rem 0;
    }
}