/* Global Styles */
:root {
    --primary-color: #00B900;
    --primary-dark: #009900;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --white: #ffffff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

a {
    text-decoration: none;
    color: inherit;
}

h1, h2, h3 {
    margin-bottom: 15px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background-color: #333;
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #555;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

/* Header */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo h1 a {
    color: var(--primary-color);
    font-size: 24px;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav a {
    font-weight: 500;
    color: #555;
}

.nav a.active, .nav a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background-color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero h2 {
    font-size: 42px;
    color: #111;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* Features Section */
.features {
    padding: 80px 0;
}

.features h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background-color: var(--white);
}

.faq h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.faq-item h3 {
    font-size: 20px;
    color: #333;
}

.faq-item p {
    color: #666;
    margin-top: 10px;
}

/* Footer */
.footer {
    background-color: #222;
    color: #ccc;
    text-align: center;
    padding: 40px 0;
}

.footer a {
    color: #fff;
}

.footer .disclaimer {
    font-size: 12px;
    color: #888;
    margin-top: 15px;
}

/* Modal for Download Preview */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--white);
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 450px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: #888;
}

.close-btn:hover {
    color: #333;
}

.modal-info {
    margin: 20px 0;
    font-size: 14px;
    color: #555;
    background: #f4f4f4;
    padding: 15px;
    border-radius: 8px;
}

.modal-info p {
    margin-bottom: 5px;
}

.progress-container {
    margin-top: 20px;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background-color: #eee;
    border-radius: 5px;
    overflow: hidden;
}

.progress {
    width: 0%;
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.05s linear;
}

#downloadStatus {
    font-size: 14px;
    color: #666;
    margin-top: 10px;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .download-buttons {
        flex-direction: column;
    }
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
}