:root {
    --primary: #2E86AB;
    --secondary: #A23B72;
    --accent: #F18F01;
    --light: #F5F7FA;
    --dark: #2C3E50;
    --success: #2ECC71;
    --error: #E74C3C;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: #f9f9f9;
}

/* Navigation */
.navbar {
    background: white;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    transition: color 0.3s;
}

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

.donate-btn {
    background: var(--accent);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary), #1a5276);
    color: white;
    padding: 10rem 2rem 6rem;
    text-align: center;
    margin-top: 60px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    background: var(--accent);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 30px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s, background 0.3s;
}

.cta-button:hover {
    transform: translateY(-3px);
    background: #e67e00;
}

/* Donation Section */
.donation-section {
    padding: 5rem 2rem;
    background: white;
}

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

h2 {
    text-align: center;
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.donation-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

/* Donation Form */
.donation-form {
    background: var(--light);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.donation-form h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.amount-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.amount-option {
    padding: 1rem;
    background: white;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.amount-option:hover, .amount-option.active {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

.custom-amount, .crypto-selector, .donor-info {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.input-with-icon, .select-wrapper {
    position: relative;
}

.input-with-icon i, .select-wrapper i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

input, select {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary);
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 1rem;
}

.donate-button {
    width: 100%;
    background: var(--success);
    color: white;
    border: none;
    padding: 1.2rem;
    font-size: 1.2rem;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: background 0.3s;
    margin-top: 1rem;
}

.donate-button:hover {
    background: #27ae60;
}

.security-note {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #666;
    text-align: center;
}

/* Donation Info */
.donation-info {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 2px solid var(--light);
}

.impact-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--light);
    border-radius: 10px;
}

.stat i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.crypto-info {
    margin: 2rem 0;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 10px;
}

.crypto-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.crypto-icons i, .crypto-icons span {
    font-size: 1.5rem;
    color: var(--dark);
}

.recent-donations {
    margin-top: 2rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: white;
    width: 90%;
    max-width: 500px;
    border-radius: 15px;
    overflow: hidden;
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 10px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--dark);
}

.modal-body {
    padding: 2rem;
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.nowpayments-logo {
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    display: inline-block;
    font-weight: bold;
    margin: 1rem 0;
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #444;
}

.footer-bottom a {
    color: var(--accent);
    text-decoration: none;
}

/* Responsive */
@media (max-width: 992px) {
    .donation-container {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .amount-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .impact-stats {
        grid-template-columns: 1fr;
    }
}