/* Keyframe animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile design */
body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f8f9fa;
    color: #222;
    margin: 0;
    padding: 0 1rem;
}

h1,
h2 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

h3 {
    font-size: 1.6rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    padding-bottom: 0.4rem;
    border-bottom: 3px solid #444;
}

nav ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0;
    margin: 1rem 0;
    list-style: none;
}

nav a {
    background: #2980b9;
    color: #fff;
    padding: 0.5rem;
    border-radius: 4px;
    text-align: center;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.3s, transform 0.3s;
}

nav a:hover {
    background: #1c5a85;
    transform: scale(1.07);
}

section {
    background: #fff;
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.05);
    animation: fadeIn 1s ease;
}

section img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    display: block;
}

form {
    background: #fff;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.05);
}

input,
textarea {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 0.75rem;
    border: 1px solid #bbb;
    border-radius: 4px;
}

button {
    width: 48%;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    background: #2980b9;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-weight: bold;
}

button[type="reset"] {
    background: red;
}

footer {
    text-align: center;
    margin: 2rem 0 1rem 0;
    color: #888;
    font-size: 0.95rem;
}

.animal-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

/* Layouts for larger screens */
/* Tablet/Medium screen */
@media (min-width: 600px) and (max-width: 899px) {
    body {
        padding: 0 2rem;
    }

    nav ul {
        flex-direction: row;
        justify-content: center;
        gap: 1rem;
    }

    section,
    form {
        max-width: 650px;
        margin-left: auto;
        margin-right: auto;
    }

    h1 {
        font-size: 2.2rem;
    }
}

/* Desktop/large Screen */
@media (min-width: 900px) {
    body {
        padding: 0 4rem;
    }

    nav ul {
        flex-direction: row;
        justify-content: center;
        gap: 2rem;
    }

    section,
    form {
        max-width: 900px;
        margin-left: auto;
        margin-right: auto;
    }

    h1 {
        font-size: 3rem;
    }

    .animal-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}