* {
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

body {
    background: #f4f7fa;
    margin: 0;
    padding: 0;
}

.container {
    width: 720px;
    margin: 60px auto;
    background: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
}

h1 {
    text-align: center;
    color: #2b6cb0;
    margin-bottom: 25px;
}

input[type="text"] {
    width: 75%;
    padding: 12px;
    border: 1px solid #cbd5e0;
    border-radius: 6px;
    outline: none;
}

button {
    padding: 12px 20px;
    background: #3182ce;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    background: #2b6cb0;
}

.item {
    padding: 15px;
    border-left: 4px solid #3182ce;
    background: #f7fafc;
    margin-bottom: 15px;
    border-radius: 6px;
}

.time {
    font-size: 12px;
    color: #718096;
}

.back {
    display: inline-block;
    margin-top: 20px;
    color: #3182ce;
    text-decoration: none;
}