/* Container Styles */
#container {
    background-color: pink;
    margin: 0 auto;
    padding: 0;
    width: 400px;
    height: 400px;
}

/* Shape Styles */
.square, .circle {
    width: 100px;
    height: 100px;
    display: inline-block;
    float: left;
}

.circle {
    border-radius: 50%;
}

#blockRed {
    background-color: red;
}

#blockYellow {
    background-color: yellow;
}

#blockWood {
    background-image: url('https://images.pexels.com/photos/172276/pexels-photo-172276.jpeg');
}

/* Body Styles */
body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: rgb(4, 4, 4);
    margin: 0;
}

/* Heading Styles */
h1 {
    font-family: copperplate;
    margin-bottom: 30px;
    color: aliceblue;
}

h2 {
    font-family: Garamond;
    margin-bottom: 15px;
    color: aliceblue;
}

/* Container Grid */
.container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    width: 400px;
    height: 400px;
    position: relative;
}

/* Box Styles */
.box {
    width: 100%;
    height: 100%;
    transition: background-color 0.5s ease;
}

.red {
    background-color: red;
}

.blue {
    background-color: navy;
}

/* Small Box Styles */
.small-box {
    position: absolute;
    width: 60px;
    height: 20px;
    background-color: red;
    transition: transform 0.2s ease;
}

.top-left {
    top: 0;
    right: 20px;
}

.bottom-left {
    bottom: 0;
    left: 20px;
}

/* Sidebar Styles */
#sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background-color: #1a202c;
    color: white;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 4px 0 10px rgba(0, 0, 0, 0.3);
}

/* Close Button Styles */
#closeSidebar {
    font-size: 24px;
    color: #a0aec0;
    border: none;
    background: none;
    cursor: pointer;
}

#closeSidebar:hover {
    color: white;
}

/* Sidebar Title */
.sidebar-title {
    color: #63b3ed;
    font-size: 20px;
    font-weight: bold;
    margin-top: 16px;
}

/* Sidebar Menu */
.sidebar-menu {
    margin-top: 24px;
}

.sidebar-menu li {
    list-style: none;
    margin-bottom: 16px;
}

/* Sidebar Link Styles */
.sidebar-link {
    display: block;
    padding: 12px;
    border-radius: 6px;
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    color: #a0aec0;
    background: linear-gradient(to right, #4299e1, #2b6cb0);
    transition: all 0.3s ease;
    text-decoration: none;
}

.sidebar-link:hover {
    color: white;
    background: linear-gradient(to right, #3182ce, #2c5282);
}

/* Sidebar Open Button */
#openSidebar {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 12px;
    background-color: #3182ce;
    color: white;
    border-radius: 0 8px 8px 0;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.2);
    transition: background 0.3s;
}

#openSidebar:hover {
    background-color: #2c5282;
}

/* Footer Styles */
footer {
    text-align: center;
    padding: 1rem;
    background: #333;
    color: white;
    font-size: 0.9rem;
}

/* Image Styles */
.bigimage {
    width: 100%;
}

.littleimage {
    width: 20%;
    height: 20%;
}