:root{--bg-deep:#0a0e18;--bg-surface:#101627;--bg-card:#161d30;--bg-glass:#161d30d1;--border-subtle:#ffffff1f;--border-accent:#fabd2f73;--gold:#ffc93c;--gold-light:#ffdb7d;--gold-dim:#ffc93c2e;--cyan:#1fe3ae;--cyan-dim:#1fe3ae29;--purple:#b3adff;--purple-dim:#b3adff29;--pink:#ff8fbb;--pink-dim:#ff8fbb29;--orange:#ffa85c;--orange-dim:#ffa85c29;--blue:#8ec5ff;--blue-dim:#8ec5ff29;--text-primary:#f8faff;--text-secondary:#b7c0d6;--text-muted:#7c88a3;--radius:14px;--radius-sm:8px;--shadow-card:0 8px 32px #0000008c,0 1px 0 #ffffff0f inset}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;background-color:#0a0e18;background-color:var(--bg-deep);color:#f8faff;color:var(--text-primary)}body,h1,h2,h3,h4{font-family:Operator 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ease}.stat-card{background:#ffffff0a;border:1px solid #ffffff1f;border:1px solid var(--border-subtle);border-radius:8px;border-radius:var(--radius-sm);padding:16px}.stat-value{color:#f8faff;color:var(--text-primary);font-family:Operator Mono,monospace;font-size:24px;font-weight:800}.stat-label{font-size:11px;letter-spacing:.08em;margin-top:4px;text-transform:uppercase}.app-footer,.stat-label{color:#7c88a3;color:var(--text-muted);font-family:Operator Mono,monospace}.app-footer{border-top:1px solid #ffffff1f;border-top:1px solid var(--border-subtle);font-size:12px;margin-top:40px;padding:24px;text-align:center}.app-footer a{color:#ffc93c;color:var(--gold);text-decoration:none;transition:opacity .2s}.app-footer a:hover{opacity:.7}.error-msg{background:#ff8a8a1a;border:1px solid #ff8a8a47;border-radius:8px;border-radius:var(--radius-sm);color:#ff8a8a;font-family:Operator Mono,monospace;font-size:13px;padding:12px 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#fabd2f4d;color:#ffc93c;color:var(--gold)}.binary-bit.zero{background:#ffffff0d;color:#7c88a3;color:var(--text-muted)}.binary-bit.zero,.quiz-option{border:1px solid #ffffff1f;border:1px solid var(--border-subtle)}.quiz-option{background:#ffffff0a;border-radius:8px;border-radius:var(--radius-sm);color:#b7c0d6;color:var(--text-secondary);cursor:pointer;font-family:Operator Mono,monospace;font-size:13px;padding:14px 18px;text-align:left;transition:all .2s;width:100%}.quiz-option:hover:not(:disabled){background:#ffc93c2e;background:var(--gold-dim);border-color:#fabd2f4d;color:#f8faff;color:var(--text-primary)}.quiz-option.correct{background:#06d6a01a;border-color:#1fe3ae;border-color:var(--cyan);color:#1fe3ae;color:var(--cyan)}.quiz-option.incorrect{background:#ff8a8a1a;border-color:#ff8a8a59;color:#ff8a8a}.quiz-option:disabled{cursor:not-allowed}.blog-card{background:#161d30d1;background:var(--bg-glass);border:1px solid #ffffff1f;border:1px solid var(--border-subtle);border-radius:14px;border-radius:var(--radius);cursor:pointer;display:flex;flex-direction:column;gap:14px;padding:28px;transition:all .25s}.blog-card:hover{border-color:#fabd2f33;box-shadow:0 12px 32px #0000004d;transform:translateY(-2px)}.blog-tag{align-items:center;border-radius:20px;display:inline-flex;font-family:Operator Mono,monospace;font-size:10px;font-weight:700;letter-spacing:.1em;padding:3px 10px;text-transform:uppercase}.info-box{background:#06d6a00d;border:1px solid #06d6a026;border-radius:8px;border-radius:var(--radius-sm);color:#b7c0d6;color:var(--text-secondary);font-size:12px;line-height:1.7;padding:14px 18px}.result-box{background:#fabd2f0d;border:1px solid #fabd2f26;border-radius:8px;border-radius:var(--radius-sm);padding:20px}.overlap-yes{background:#ff8a8a1a;border:1px solid #ff8a8a47;border-radius:6px;color:#ff8a8a}.overlap-no,.overlap-yes{font-size:11px;padding:3px 10px}.overlap-no{background:#1fe3ae29;background:var(--cyan-dim);border:1px 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var(--border-subtle);display:flex;justify-content:space-between;padding:8px 0}.mobile-card-row:last-child{border-bottom:none}.mobile-card-key{color:#7c88a3;color:var(--text-muted);font-size:11px;letter-spacing:.06em;text-transform:uppercase}.mobile-card-key,.mobile-card-val{font-family:Operator Mono,monospace}.mobile-card-val{color:#b7c0d6;color:var(--text-secondary);font-size:13px;max-width:60%;text-align:right;word-break:break-all}.select-field{appearance:none;background:#ffffff0d;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12'%3E%3Cpath fill='%234a5568' d='M6 8 1 3h10z'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;border:1px solid #ffffff1f;border:1px solid var(--border-subtle);border-radius:8px;border-radius:var(--radius-sm);color:#f8faff;color:var(--text-primary);cursor:pointer;font-family:Operator Mono,monospace;font-size:14px;outline:none;padding:12px 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