:root {
    --primary-color: #8E44AD;
    --secondary-color: #9B59B6;
    --yellow-color: #FFD700;
    --dark-purple: #6B2E9E;
    --text-color: #333;
    --white: #fff;
    --bg-color: #F8F0FF;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Top Banner */
.top-banner {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    text-align: center;
    font-size: 14px;
}

/* Main Header */
.main-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 50px 20px;
    text-align: center;
}

.main-header .header-content {
    max-width: 1000px;
    margin: 0 auto;
}

.main-header .header-content h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

.main-header .stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-item i {
    font-size: 28px;
    margin-bottom: 8px;
}

.stat-item span {
    display: block;
    font-size: 20px;
    font-weight: bold;
}

/* Reward Button */
.reward-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--yellow-color);
    color: #000;
    border: none;
    border-radius: 25px;
    padding: 15px 40px;
    font-size: 20px;
    font-weight: bold;
    margin: 30px auto;
    cursor: pointer;
    gap: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.reward-button:hover {
    background-color: #FFC700;
    box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}

/* Reward Section */
.reward-section {
    margin: 60px 0;
    text-align: center;
}

.reward-section h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 40px;
}

.reward-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.reward-item {
    flex: 1 1 250px;
    max-width: 300px;
    background: var(--white);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 2px solid transparent;
}

.reward-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 16px rgba(0,0,0,0.15);
}

.reward-item.highlight {
    border: 2px solid var(--yellow-color);
}

.reward-icon {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.pi-amount {
    font-size: 26px;
    font-weight: bold;
    color: var(--primary-color);
    margin: 10px 0;
}

.reward-item p {
    font-size: 15px;
    color: #666;
}

.popular-tag {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--yellow-color);
    color: #000;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}

/* Trust Section */
.trust-section {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin: 60px 0;
}

.trust-section .trust-item {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    padding: 20px;
    width: 220px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.trust-section .trust-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 14px rgba(0,0,0,0.15);
}

.trust-section .trust-item i {
    font-size: 30px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.trust-section .trust-item h4 {
    margin: 10px 0;
    color: var(--primary-color);
}

.trust-section .trust-item p {
    font-size: 14px;
    color: #666;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 25px;
    text-align: center;
    margin-top: 50px;
}

.footer-content.container {
    max-width: 1200px;
    margin: 0 auto;
}

.social-links {
    margin-bottom: 15px;
}

.social-icon {
    color: var(--white);
    font-size: 24px;
    margin: 0 10px;
    text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
    .main-header .header-content h1 {
        font-size: 26px;
    }

    .reward-grid {
        flex-direction: column;
        align-items: center;
    }

    .trust-section {
        flex-direction: column;
        align-items: center;
    }

    .reward-button {
        width: 90%;
    }

    .trust-section .trust-item {
        width: 100%;
        max-width: 300px;
    }
}