* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 32px 20px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background: #f4f6fb;
    color: #1f2937;
}

.problem-statement,
.solution,
.output {
    max-width: 1000px;
    margin: 0 auto 24px;
    padding: 22px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
}

h2 {
    margin-top: 0;
    margin-bottom: 14px;
    color: #0f172a;
    border-left: 5px solid #2563eb;
    padding-left: 10px;
}

p {
    margin: 0;
}

strong {
    display: inline-block;
    margin: 14px 0 8px;
    color: #1d4ed8;
}

.code {
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 10px;
    padding: 14px;
    overflow-x: auto;
    border: 1px solid #1e293b;
}

pre {
    margin: 0;
    white-space: pre;
    font-size: 13px;
    line-height: 1.5;
    font-family: Consolas, "Courier New", monospace;
}

.page,
.images {
    margin-top: 8px;
}

img {
    width: 70%;
    max-width: 700px;
    display: block;
    margin: 0 auto;
    border-radius: 10px;
    border: 1px solid #d1d5db;
    background: #ffffff;
}

table {
    border-collapse: collapse;
    border-spacing: 10px;
    width: 100%;
}

th,
td {
    background-color: #fff;
    padding: 15px;
    border: 1px solid #ccc;
    text-align: left;
}