body {
    font-family: Arial, Helvetica, sans-serif;
    color: #f5f5f5;
    background: url('https://www.transparenttextures.com/patterns/diamond-upholstery.png'), linear-gradient(to bottom, #1e3c72, #2a5298);
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: rgb(231, 213, 213);
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 30px;
}

.status {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #afd7fd;
    border-left: 5px solid #2196F3;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 4px;
}

.status::before {
    content: "ℹ️";
    font-size: 18px;
}

.status.error {
    background-color: #fcb3bf;
    border-left-color: #fc2515;
}

.status.error::before {
    content: "⚠️";
}

.status.success {
    background-color: #aeffb5;
    border-left-color: #4CAF50;
}

.status.success::before {
    content: "✅";
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center;
}

.input-group {
    display: flex;
    align-items: center;
}

input {
    padding: 8px;
    border: 1px solid #aca9a9;
    border-radius: 4px;
    margin-right: 5px;
    width: 80px;
}

button {
    padding: 8px 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #29752d;
}

#enqueueBtn {
    background-color: #4CAF50;
}

#enqueueBtn:hover {
    background-color: #1e6b20;
}

#dequeueBtn {
    background-color: #f44336;
}

#dequeueBtn:hover {
    background-color: #952121;
}

#clearBtn {
    background-color: #8e8d8d;
}

#clearBtn:hover {
    background-color: #333;
}

.queue-container {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.queue {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.queue-element {
    width: 60px;
    height: 60px;
    border: 3px solid #54bae6;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 5px 5px 30px 5px;
    background-color: #a1c0c6;
    position: relative;
    transition: all 0.3s ease;
}

.index-label {
    position: absolute;
    bottom: -25px;
    font-size: 12px;
    color: #4a3a3a;
    width: 100%;
    text-align: center;
}

.pointers {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin-top: 20px;
}

.pointer {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pointer-label {
    font-weight: bold;
    margin-bottom: 5px;
}

.pointer-box {
    width: 60px;
    height: 60px;
    border: 3px solid #3a3232;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #a8a8a8;
    font-weight: bold;
}

.array-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
    gap: 10px;
}

.highlight-circle {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 5px solid #1670b9;
    border-radius: 50%;
    pointer-events: none;
    box-sizing: border-box;
    z-index: 10;
    transition: all 1s ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes green-glow {
    0% { box-shadow: 0 0 5px #4CAF50; }
    50% { box-shadow: 0 0 20px #4CAF50; }
    100% { box-shadow: 0 0 5px #4CAF50; }
}

.pulse-effect {
    animation: pulse 1s infinite;
}

.glow-effect {
    animation: green-glow 1s 3;
}