/* Styling for the standalone research / references reading pages. */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 28px 16px 60px;
    color: #333;
    line-height: 1.65;
}

.doc {
    max-width: 760px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.97);
    border-radius: 18px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px 44px 48px;
}

.back {
    display: inline-block;
    margin-bottom: 18px;
    font-size: 0.9em;
    font-weight: 600;
    color: #764ba2;
    text-decoration: none;
    border-bottom: 1px solid rgba(118, 75, 162, 0.3);
}
.back:hover { border-bottom-color: #764ba2; }

.doc h1 {
    font-size: 1.9em;
    color: #4a3b73;
    line-height: 1.25;
    margin-bottom: 18px;
}

.doc h2 {
    font-size: 1.25em;
    color: #5b4a82;
    margin: 32px 0 12px;
    padding-top: 18px;
    border-top: 1px solid #ece8f6;
}

.doc h3 { font-size: 1.05em; color: #5b4a82; margin: 22px 0 10px; }

.doc p { margin: 0 0 14px; }

.doc a {
    color: #764ba2;
    text-decoration: none;
    border-bottom: 1px solid rgba(118, 75, 162, 0.35);
}
.doc a:hover { border-bottom-color: #764ba2; }

.doc ul, .doc ol { margin: 0 0 16px; padding-left: 24px; }
.doc li { margin-bottom: 8px; }
.doc li::marker { color: #a98fe0; }

.doc strong { color: #333; }

.doc blockquote {
    margin: 0 0 18px;
    padding: 14px 18px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(196, 113, 245, 0.1) 100%);
    border-left: 3px solid #a98fe0;
    border-radius: 8px;
    color: #5b4a82;
}
.doc blockquote p:last-child { margin-bottom: 0; }

.doc code {
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.86em;
    background: #f0edf8;
    color: #5b4a82;
    padding: 2px 6px;
    border-radius: 5px;
}

.doc pre {
    background: #f6f4fc;
    border: 1px solid #e7e2f2;
    border-radius: 10px;
    padding: 14px 16px;
    overflow-x: auto;
    margin: 0 0 16px;
}
.doc pre code { background: none; padding: 0; }

.doc hr {
    border: none;
    border-top: 1px solid #ece8f6;
    margin: 28px 0;
}

.doc table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 20px;
    font-size: 0.92em;
}
.doc th, .doc td {
    text-align: left;
    padding: 9px 12px;
    border-bottom: 1px solid #ece8f6;
    vertical-align: top;
}
.doc thead th {
    background: rgba(102, 126, 234, 0.07);
    color: #5b4a82;
    border-bottom: 2px solid #d4c9ec;
}
.doc tbody tr:hover { background: rgba(102, 126, 234, 0.04); }

.doc em { color: #555; }

@media (max-width: 560px) {
    .doc { padding: 26px 22px 32px; border-radius: 14px; }
    .doc h1 { font-size: 1.5em; }
}