:root {
    --primary-color: #0175C2;
    --secondary-color: #10B981;
    --text-color: #333;
    --bg-color: #F9FAFB;
    --white: #FFFFFF;
    --sans-font: 'Helvetica', 'Arial', sans-serif;
}

body {
    font-family: var(--sans-font);
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
}

header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    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);
}

.tagline {
    font-size: 0.8rem;
    font-weight: normal;
    color: #666;
}

.nav-links ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.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);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px 0;
    transition: all 0.3s ease-in-out;
}

.hero {
    background: linear-gradient(rgba(59, 130, 246, 0.4), rgba(16, 185, 129, 0.4)), url('https://images.pexels.com/photos/167699/pexels-photo-167699.jpeg') no-repeat center center/cover;
    color: var(--white);
    text-align: center;
    padding: 4rem 0; /* Vertical padding only */
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40vh;
    background-attachment: fixed; /* Added for parallax effect */
}

.hero-content {
    padding: 0 2rem; /* Horizontal padding for content */
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
    background-color: #059669;
    transform: translateY(-2px);
}

main > section {
    text-align: center;
}

.content-wrapper {
    padding: 0 2rem; /* Horizontal padding for content */
}

main > section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.form-container {
    max-width: 800px;
    margin: 2rem auto 0;
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: #E5E7EB;
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    margin: 0 1rem;
    color: var(--text-color);
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

.content-section {
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    padding: 6rem 0; /* Vertical padding ONLY */
    color: var(--white);
    background-attachment: fixed; /* Added for parallax effect */
}

#about.content-section {
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.pexels.com/photos/33109/fall-autumn-red-season.jpg');
}

#features.content-section {
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.pexels.com/photos/931018/pexels-photo-931018.jpeg');
}

#contact.content-section {
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.unsplash.com/photo-1533407185345-6d959a892a72');
}

.text-content {
    background-color: rgba(0, 0, 0, 0.6);
    padding: 2rem;
    border-radius: 12px;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.content-section h2 {
    color: var(--white);
}

/* --- Responsive Styles for Mobile --- */
@media (max-width: 768px) {
    nav {
        position: relative;
    }

    .hamburger {
        display: block;
        z-index: 1001;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        width: 100%;
        padding: 1rem 0;
    }

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

    .nav-links ul {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .hero {
        padding: 4rem 0; /* Vertical padding only */
        min-height: 50vh;
    }
    
    .hero-content {
        padding: 0 1rem; /* Horizontal padding for content */
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .content-wrapper {
        padding: 3rem 1rem;
    }

    main > section h2 {
        font-size: 2rem;
    }

    .text-content {
        padding: 1.5rem;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-links a {
        margin: 0;
    }

    .hero,
    .content-section {
        background-attachment: scroll; /* Disable parallax on mobile */
    }
}