/* VideoDistanceMarking Help — Shared Stylesheet */
body {
    font-family: "Segoe UI", Tahoma, Geneva, sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 30px;
    color: #222;
    background: #fafafa;
    line-height: 1.6;
}
h1 { color: #1a5276; border-bottom: 2px solid #1a5276; padding-bottom: 8px; }
h2 { color: #2e4053; margin-top: 30px; }
h3 { color: #34495e; }
a { color: #2980b9; text-decoration: none; }
a:hover { text-decoration: underline; }
code {
    background: #ecf0f1;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.95em;
}
pre {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-size: 0.9em;
}
pre code { background: none; color: inherit; padding: 0; }
table {
    border-collapse: collapse;
    width: 100%;
    margin: 15px 0;
}
th, td {
    border: 1px solid #bdc3c7;
    padding: 8px 12px;
    text-align: left;
}
th { background: #2c3e50; color: white; }
tr:nth-child(even) { background: #f2f3f4; }
.nav {
    background: #2c3e50;
    padding: 10px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}
.nav a { color: #ecf0f1; margin-right: 15px; font-weight: bold; }
.nav a:hover { color: #3498db; }
.breadcrumb { color: #7f8c8d; margin-bottom: 15px; font-size: 0.9em; }
.breadcrumb a { color: #7f8c8d; }
.tip {
    background: #eaf2f8;
    border-left: 4px solid #2980b9;
    padding: 10px 15px;
    margin: 15px 0;
}
.warning {
    background: #fef9e7;
    border-left: 4px solid #f39c12;
    padding: 10px 15px;
    margin: 15px 0;
}
