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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --background-color: #f3f4f6;
}

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

header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    margin-right: 10px;
}

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

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: bold;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--primary-color);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 80px;
}

#hero {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    min-height: 60vh;
}

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

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: white;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    margin-top: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    margin-right: 10px;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

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

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

.hero-image {
    flex: 1;
    text-align: right;
}

.hero-image img {
    max-width: 100%;
    height: auto;
}

#features {
    text-align: center;
    padding: 4rem 0;
    background-color: white;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 2rem;
}

.feature {
    background-color: var(--background-color);
    padding: 2rem;
    border-radius: 10px;
    transition: transform 0.3s;
}

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

.feature i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

#download {
    text-align: center;
    padding: 4rem 0;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 2rem;
}

.btn-apple, .btn-google {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: black;
    color: white;
}

#about {
    padding: 4rem 2rem;
    background-color: white;
}

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

.about-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-color);
}

#support {
    background-color: white;
    padding: 4rem 0;
    text-align: center;
}

.contact-info {
    max-width: 500px;
    margin: 2rem auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
}

.icp {
    font-size: 0.9rem;
    opacity: 0.8;
}

@media screen and (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    #hero {
        padding: 3rem 1rem;
    }

    .hero-content h2 {
        font-size: 2rem;
    }
}