@import url("https://fonts.googleapis.com/css2?family=Nunito&display=swap");

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

:root {
    --HEADER-BGCOLOR: #333;
    --HEADER-COLOR: whitesmoke;
}

html {
    font-size: 1.5rem;
    font-family: 'Nunito', sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    flex-flow: column nowrap;
}

header {
    background-color: var(--HEADER-BGCOLOR);
    color: var(--HEADER-COLOR); 
}

.header-title-line {
    padding: 0.25rem 0.5rem;
    display: flex;
    flex-flow: row nowrap;
    justify-content: space-between;
}

.menu-button {
    background-color: transparent;
    border: none;
    width: 48px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative; 
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
    background-color: var(--HEADER-COLOR);
    width: 40px;
    height: 5px;
    border-radius: 5px;
    position: absolute;
    transition: all 0.5s;
}

.menu-icon::before,
.menu-icon::after {
    content: "";
}

.menu-icon::before {
    transform: translate(-20px, -12px);
}

.menu-icon::after {
    transform: translate(-20px, 12px);
}

:is(header:hover, header:focus-within) .menu-icon {
    background-color: transparent;
    transform: rotate(720deg);
}

:is(header:hover, header:focus-within) .menu-icon::before {
    transform: translateX(-20px) rotate(45deg);
}

:is(header:hover, header:focus-within) .menu-icon::after {
    transform: translateX(-20px) rotate(-45deg);
}

:is(header:hover, header:focus-within) nav {
    display: block;
}

nav {
    background-color: var(--HEADER-BGCOLOR);
    display: none;
    transform-origin: top center;
    animation: showMenu 0.5s ease-in-out forwards;
}

@keyframes showMenu {
    0% {
        transform: scaleY(0);
    }
    80% {
        transform: scaleY(1.2);
    }
    100% {
        transform: scaleY(1);
    } 
}

nav ul {
    list-style-type: none;
    display: flex;
    flex-flow: column nowrap;
}

nav li {
    padding: 0.5rem;
    border-top: 1px solid var(--HEADER-COLOR);
}

nav a {
    display: block;
    text-align: center;
    width: 80%;
    margin: auto;
}

nav a:any-link {
    color: var(--HEADER-COLOR);
    font-weight: bold;
    text-decoration: none;
}

nav a:hover,
nav a:focus {
    transform: scale(1.2);
    transition: all 0.3s;
}

/* Styles for the star squares (from style.css) */
main {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.square {
    width: 100px;
    height: 100px;
    background-color: #3498db;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    color: white;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.5s ease-in-out, background-color 0.5s;
}

.square:hover {
    transform: scale(1.2) rotate(15deg);
    background-color: #e74c3c;
}

.square.animate {
    animation: spinAndGlow 2s infinite ease-in-out;
}

@keyframes spinAndGlow {
    0% {
        transform: rotate(0deg) scale(1);
        background-color: #3498db;
    }
    50% {
        transform: rotate(180deg) scale(1.3);
        background-color: #f1c40f;
    }
    100% {
        transform: rotate(360deg) scale(1);
        background-color: #3498db;
    }
}

/* Additional styles for imaginary pages */
.products, .form-section, .about, .contact {
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.product-item {
    background-color: #f9f9f9;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #e74c3c;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

form label {
    font-weight: bold;
}

form input,
form select,
form textarea {
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

form button {
    padding: 0.5rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

form button:hover {
    background-color: #e74c3c;
}

footer {
    background-color: var(--HEADER-BGCOLOR);
    color: var(--HEADER-COLOR);
    text-align: center;
    padding: 0.2rem;
    margin-top: auto;
}