/* Global Styles */
:root {
    --primary-color: #4CAF50;
    --secondary-color: #2E7D32;
    --dark-color: #1B5E20;
    --light-color: #C8E6C9;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Navigation */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="20" height="20" fill="none"/><circle cx="3" cy="3" r="1" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-section .row {
    position: relative;
    z-index: 2;
}

/* Feature Cards */
.feature-card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
}

/* How It Works */
.step-number {
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 1rem;
}

.steps-list {
    position: relative;
}

.step-item {
    padding: 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* Rewards Section */
.rewards-card {
    background: white;
    border-radius: 15px;
}

.reward-icon {
    font-size: 3rem;
    color: var(--primary-color);
}

.reward-tiers .tier {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--light-color);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.tier-name {
    font-weight: 600;
}

.tier-reward {
    color: var(--primary-color);
    font-weight: 700;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

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

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 120px 0 60px;
    }
    
    .feature-card {
        margin-bottom: 1.5rem;
    }
}

/* Custom Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card, .step-item, .rewards-card {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* App Page Styles */
.app-page {
    background-color: #f8f9fa;
    min-height: 100vh;
}

.wallet-card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.wallet-icon {
    font-size: 4rem;
    color: var(--primary-color);
}

.upload-area {
    background: #f8f9fa;
    cursor: pointer;
}

.stat-card {
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

#preview-image {
    max-height: 300px;
    width: auto;
    margin: 0 auto;
}

/* Modal styling */
.modal-content {
    border: none;
    border-radius: 15px;
}

.wallet-option {
    padding: 1rem;
    text-align: left;
    transition: all 0.2s;
}

.wallet-option:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}