:root {
    --primary-color: #ccff90;
    --secondary-color: #4caf50;
    --bg-color: #f4f4f9;
    --text-color: #333;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header */
header {
    background-color: var(--secondary-color);
    color: #fff;
    padding: 1rem 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.app-description {
    font-size: 1.1rem;
    max-width: 600px;
    opacity: 0.9;
}

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

.app-store-btn {
    background-color: #fff;
    color: var(--secondary-color);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s, box-shadow 0.2s;
}

.app-store-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Info Card (Usage & Contact) */
.info-card {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.info-card h2 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.info-card ul {
    padding-left: 1.5rem;
}

.info-card li {
    margin-bottom: 0.5rem;
}

.email-link {
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: bold;
}

.email-link a {
    color: var(--secondary-color);
    text-decoration: none;
}

.email-link a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: #777;
    font-size: 0.9rem;
    background-color: #e8e8e8;
    margin-top: 3rem;
}

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

.footer-links a {
    color: #555;
    text-decoration: none;
    margin: 0 0.5rem;
}

.footer-links a:hover {
    text-decoration: underline;
    color: var(--secondary-color);
}