/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    letter-spacing: -0.5px;
}

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

.nav-menu a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #667eea;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #4a5568;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding: 120px 20px 80px;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4a5568;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-main-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
    transition: transform 0.3s ease;
}

.hero-main-image:hover {
    transform: scale(1.02);
}

.hero-placeholder {
    width: 400px;
    height: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

.hero-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.hero-placeholder p {
    font-size: 1.2rem;
    font-weight: 600;
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: #1a202c;
}

/* About Section */
.about {
    padding: 80px 20px;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4a5568;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 2rem;
    background: #f7fafc;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

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

.stat i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.stat h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 0.5rem;
}

/* Project Section */
.project {
    padding: 80px 20px;
    background: #f7fafc;
}

.project-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.project-description h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 1.5rem;
}

.project-description h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2d3748;
    margin: 2rem 0 1rem 0;
}

.project-description p {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    margin-top: 1rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: #4a5568;
}

.feature-list i {
    color: #48bb78;
    font-size: 1.2rem;
}

.project-main-image {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(66, 153, 225, 0.3);
    transition: transform 0.3s ease;
}

.project-main-image:hover {
    transform: scale(1.02);
}

.project-placeholder {
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    box-shadow: 0 20px 40px rgba(66, 153, 225, 0.3);
}

.project-placeholder i {
    font-size: 5rem;
    margin-bottom: 1rem;
}

.project-placeholder p {
    font-size: 1.3rem;
    font-weight: 600;
}

/* Steps Section */
.steps {
    padding: 80px 20px;
    background: white;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e2e8f0;
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.5rem;
    z-index: 2;
    position: relative;
}

.timeline-content {
    flex: 1;
    max-width: 350px;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin: 0 2rem;
}

.timeline-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 1rem;
}

.timeline-content p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.timeline-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #e6fffa;
    color: #38b2ac;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Membership Section */
.membership {
    padding: 80px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.membership .section-title {
    color: white;
}

.membership-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.membership-info h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.membership-info p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.membership-benefits {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.benefit i {
    font-size: 2rem;
    opacity: 0.8;
}

.benefit h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.benefit p {
    margin: 0;
    opacity: 0.8;
}

.membership-contact {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    color: #1a202c;
}

.membership-contact h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.whatsapp-group {
    margin-bottom: 2rem;
}

.whatsapp-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, #25d366 0%, #20ba5a 100%);
    border-radius: 16px;
    color: white;
    transition: transform 0.3s ease;
}

.whatsapp-card:hover {
    transform: translateY(-3px);
}

.whatsapp-card > i {
    font-size: 3rem;
    margin-top: 0.5rem;
}

.whatsapp-info h5 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.whatsapp-info p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.whatsapp-join-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: white;
    color: #25d366;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.whatsapp-join-btn:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.whatsapp-join-btn i {
    font-size: 1.3rem;
}

.membership-note {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: #e6fffa;
    border-radius: 12px;
    border-left: 4px solid #38b2ac;
}

.membership-note i {
    font-size: 1.2rem;
    color: #38b2ac;
    margin-top: 0.2rem;
}

.membership-note p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #2d3748;
}

/* Contact Section */
.contact {
    padding: 80px 20px;
    background: #f7fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 1.5rem;
}

.contact-info p {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.main-whatsapp-cta {
    margin-bottom: 2rem;
}

.whatsapp-cta-btn {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, #25d366 0%, #20ba5a 100%);
    border-radius: 16px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

.whatsapp-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.4);
}

.whatsapp-cta-btn i {
    font-size: 3rem;
}

.whatsapp-cta-btn h4 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: white;
}

.whatsapp-cta-btn span {
    font-size: 1rem;
    opacity: 0.9;
}

.social-media {
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.social-media h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 1.5rem;
}

.social-links {
    margin-bottom: 1.5rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f7fafc;
    border-radius: 8px;
    text-decoration: none;
    color: #4a5568;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.social-link i {
    font-size: 1.3rem;
}

.social-note {
    color: #718096;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Footer */
.footer {
    background: #1a202c;
    color: white;
    padding: 3rem 20px 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand p {
    color: #a0aec0;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links ul li a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #667eea;
}

.footer-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.5rem;
    background: #25d366;
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.footer-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-2px);
}

.footer-whatsapp i {
    font-size: 1.2rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid #2d3748;
    text-align: center;
    color: #a0aec0;
}

/* Mobile Menu Styles */
.nav-menu.active {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    gap: 1rem;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

body.menu-open {
    overflow: hidden;
}

/* Quick Donation Amount Styles */
.quick-select-amounts {
    margin-bottom: 1rem;
}

.quick-select-amounts p {
    font-size: 0.9rem;
    font-weight: 500;
    color: #4a5568;
    margin-bottom: 0.8rem;
}

.quick-select-amounts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.quick-amount-btn {
    padding: 0.5rem 1rem;
    border: 2px solid #e2e8f0;
    background: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: #4a5568;
    transition: all 0.3s ease;
}

.quick-amount-btn:hover {
    border-color: #667eea;
    color: #667eea;
}

.quick-amount-btn.active {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content,
    .project-content,
    .membership-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        padding-left: 80px;
    }
    
    .timeline-icon {
        position: absolute;
        left: 0;
    }
    
    .timeline-content {
        margin: 0;
        max-width: none;
    }
    
    .about-stats {
        flex-direction: row;
        overflow-x: auto;
    }
    
    .stat {
        min-width: 200px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 15px 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .hero-placeholder {
        width: 300px;
        height: 200px;
    }
    
    .hero-placeholder i {
        font-size: 3rem;
    }
    
    .project-placeholder {
        height: 250px;
    }
    
    .project-placeholder i {
        font-size: 3.5rem;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
    
    .purpose {
        flex-direction: column;
        text-align: center;
    }
    
    .donate-form {
        padding: 2rem;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth Scrolling Enhancement */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.success-message {
    background: #c6f6d5;
    color: #2f855a;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: none;
}

.error-message {
    background: #fed7d7;
    color: #c53030;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: none;
}