:root {
    --primary-blue: #0d6efd; /* Vibrant Blue from image */
    --flashy-yellow: #FFD700; /* Strong Yellow */
    --clean-white: #ffffff;
    --dark-text: #212529;
    --light-gray: #f8f9fa;
    --hero-overlay: rgba(13, 110, 253, 0.8);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--clean-white);
    color: var(--dark-text);
    line-height: 1.6;
}

header {
    background: var(--primary-blue);
    color: var(--clean-white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--flashy-yellow);
}

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

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

nav a:hover {
    color: var(--flashy-yellow);
}

.hero {
    background-color: var(--primary-blue);
    color: var(--clean-white);
    padding: 4rem 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    width: 90%;
    max-width: 1200px;
}

.hero-text {
    flex: 1;
    text-align: left;
}

.hero-image {
    flex: 1;
    background-color: var(--clean-white);
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    display: block;
    border-radius: 10px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    background-color: var(--flashy-yellow);
    color: var(--dark-text);
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: bold;
    border-radius: 50px;
    transition: transform 0.3s ease, background-color 0.3s ease;
    display: inline-block;
}

.cta-button:hover {
    background-color: var(--clean-white);
    transform: scale(1.05);
}

main > section {
    padding: 4rem 1rem;
    text-align: center;
}

.features {
    background-color: var(--light-gray);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-blue);
}

.feature-cards {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    width: 90%;
    margin: 0 auto;
}

.card {
    background: var(--clean-white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    flex-basis: 300px;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
}

.card img {
    border-radius: 50%;
    margin-bottom: 1rem;
}

.card h3 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.about {
    background-color: var(--primary-blue);
    color: var(--clean-white);
}

.about h2 {
    color: var(--flashy-yellow);
}

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

.contact {
    background-color: var(--light-gray);
}

.contact .container {
    max-width: 600px;
    margin: 0 auto;
}

.contact h1 {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

#subscribeForm {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

#subscribeForm input {
    flex-grow: 1;
    padding: 0.8rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

#subscribeForm button {
    padding: 0.8rem 1.5rem;
    border: none;
    background-color: var(--flashy-yellow);
    color: var(--dark-text);
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#subscribeForm button:hover {
    background-color: #ffc107; /* A slightly darker yellow */
}

.success-message {
    color: var(--primary-blue);
    font-weight: bold;
    margin-top: 1rem;
}

footer {
    background: var(--dark-text);
    color: var(--clean-white);
    text-align: center;
    padding: 1.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav ul {
        display: none; /* Simple responsive solution */
    }

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

    .hero-text {
        text-align: center;
    }

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

    .feature-cards {
        flex-direction: column;
        align-items: center;
    }
}