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

body {
    font-family: 'Inter', sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #fff;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #1c1c1c;
}

h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1c1c1c;
}

h3 {
    font-size: 20px;
    font-weight: 600;
    color: #1c1c1c;
}

p {
    margin-bottom: 20px;
    font-size: 18px;
}

section {
    padding: 60px 0;
}

/* Navigation */
nav {
    background-color: #fff;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 600;
    font-size: 20px;
    color: #1c1c1c;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #1c1c1c;
}

.logo img {
    height: 36px;
    margin-right: 10px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    transition: color 0.3s;
    font-weight: 500;
}

.nav-links a:hover {
    color: #4a7c59;
}

.download-btn {
    background-color: #f0f0e6;
    color: #1c1c1c;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 500;
    transition: background-color 0.3s;
}

.download-btn:hover {
    background-color: #e5e5db;
}

/* Hero Section */
.hero {
    padding: 60px 0 80px;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 54px;
    line-height: 1.1;
    margin-bottom: 30px;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    line-height: 1.6;
}

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

.hero-image img {
    max-width: 100%;
    border-radius: 20px;
}

.app-badges {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.app-badges img {
    height: 50px;
}

/* How it Works Section */
.how-it-works {
    background-color: #f5f5f0;
    padding: 80px 0;
}

.how-it-works .container {
    display: flex;
    align-items: center;
    gap: 80px;
}

.how-content {
    flex: 1;
}

.how-content h2 {
    font-size: 36px;
    margin-bottom: 25px;
}

.how-content p {
    font-size: 18px;
    line-height: 1.6;
}

.how-image {
    flex: 1;
    display: flex;
    justify-content: center;
    height: 500px;
}

.bird-card {
    background-color: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 350px;
}

.bird-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 20px;
}

.card-content h3 {
    font-size: 24px;
    margin-bottom: 5px;
}

.scientific-name {
    color: #666;
    font-style: italic;
    margin-bottom: 15px;
    font-size: 14px;
}

.bird-details {
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.5;
    color: #444;
}

.add-collection-btn {
    background-color: #f5f5f0;
    color: #1c1c1c;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 500;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
}

.add-collection-btn:hover {
    background-color: #e8e8e0;
}

/* Map Tracking Section */
.map-tracking {
    padding: 80px 0;
}

.map-tracking .container {
    display: flex;
    align-items: center;
    gap: 80px;
}

.tracking-content {
    flex: 1;
}

.tracking-content h2 {
    font-size: 36px;
    margin-bottom: 25px;
}

.tracking-content p {
    font-size: 18px;
    line-height: 1.6;
}

.tracking-image {
    flex: 1;
    display: flex;
    justify-content: center;
    height: 500px;
}

.tracking-image img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Call to Action Section */
.cta {
    background-color: #f5f5f0;
    padding: 80px 0;
    text-align: center;
}

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

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
}

.cta .app-badges {
    justify-content: center;
}

/* Footer */
footer {
    background-color: #fff;
    padding: 30px 0;
    border-top: 1px solid #eee;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer p {
    margin: 0;
    color: #666;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #666;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #333;
}

/* Responsive styles */
@media (max-width: 992px) {
    .hero .container,
    .how-it-works .container,
    .map-tracking .container {
        flex-direction: column;
    }
    
    h1 {
        font-size: 42px;
    }
    
    h2 {
        font-size: 30px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .how-it-works,
    .map-tracking {
        padding: 40px 0;
    }
    
    .bird-card {
        max-width: 100%;
    }

    /* Mobile footer styles */
    footer .container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    footer p {
        font-size: 14px;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .footer-links a {
        font-size: 14px;
    }
}