.bitwise-guide-hub-page .guide-hub{max-width:1000px}
.bitwise-learning-path{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;counter-reset:step}
.bitwise-learning-path a{display:block;padding:18px;border:1px solid var(--border-color);border-radius:9px;background:var(--tool-bg);color:var(--text-color);counter-increment:step}
.bitwise-learning-path a::before{content:"STEP " counter(step);display:block;margin-bottom:6px;color:var(--primary-color);font-size:10px;font-weight:bold}
.bitwise-learning-path a:hover{border-color:var(--primary-color);text-decoration:none}
.bitwise-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.bitwise-topic-card{display:flex;min-height:138px;flex-direction:column;padding:20px;border:1px solid var(--border-color);border-radius:10px;background:var(--panel-bg);color:var(--text-color);transition:border-color .2s,transform .2s,box-shadow .2s}
.bitwise-topic-card:hover{transform:translateY(-2px);border-color:var(--primary-color);box-shadow:var(--shadow);text-decoration:none}
.bitwise-topic-card .topic-label{align-self:flex-start;margin-bottom:10px;padding:3px 8px;border-radius:999px;background:var(--tool-bg);color:var(--primary-color);font-size:10px;font-weight:bold}
.bitwise-topic-card strong{font-size:16px;line-height:1.55}
.bitwise-topic-card span:last-child{margin-top:8px;color:var(--text-muted);font-size:12px;line-height:1.65}
.bitwise-tool-callout{display:grid;grid-template-columns:1fr auto;align-items:center;gap:20px;margin-top:42px;padding:24px;border:1px solid rgba(0,86,179,.25);border-radius:10px;background:linear-gradient(135deg,rgba(0,86,179,.04),rgba(0,86,179,.1))}
.bitwise-tool-callout p{margin:5px 0 0;color:var(--text-muted);font-size:13px}
.bitwise-tool-callout a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 20px;border-radius:999px;background:var(--primary-color);color:#fff;font-size:13px;font-weight:bold;white-space:nowrap}
.bitwise-tool-callout a:hover{color:#fff;text-decoration:none;opacity:.9}
.bitwise-guide-article .truth-table{width:100%;border-collapse:collapse;margin:20px 0}
.bitwise-guide-article .truth-table th,.bitwise-guide-article .truth-table td{padding:10px;border:1px solid var(--border-color);text-align:center}
.bitwise-guide-article .truth-table th{background:var(--tool-bg)}
.bitwise-guide-article .bit-example{overflow-x:auto;margin:20px 0;padding:18px;border:1px solid var(--border-color);border-radius:8px;background:var(--tool-bg);font:600 14px/1.8 Menlo,Consolas,monospace;white-space:pre}
.bitwise-guide-article .use-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:20px 0}
.bitwise-guide-article .use-card{padding:16px;border:1px solid var(--border-color);border-radius:8px;background:var(--input-bg)}
.bitwise-guide-article .use-card strong{display:block;margin-bottom:5px;color:var(--primary-color)}
.bitwise-guide-article .use-card p{margin:0;color:var(--text-muted);font-size:13px;line-height:1.7}
@media(max-width:700px){.bitwise-learning-path,.bitwise-topic-grid,.bitwise-guide-article .use-card-grid{grid-template-columns:1fr}.bitwise-tool-callout{grid-template-columns:1fr}.bitwise-tool-callout a{justify-self:start}}