.header-pki-img[data-astro-cid-ukvus4ql]{width:100px;height:100px;filter:drop-shadow(0 4px 10px rgba(90,69,56,.15));border-radius:12px;object-fit:contain;flex-shrink:0;margin-bottom:-3px}@media(max-width:600px){.header-pki-img[data-astro-cid-ukvus4ql]{width:75px;height:75px;margin-bottom:0}}.inline-icon[data-astro-cid-ukvus4ql]{display:inline-block;vertical-align:middle;margin:0 4px}.cert-inline-key[data-astro-cid-ukvus4ql]{display:inline-block;vertical-align:middle;margin-right:4px}.deep-dive-note[data-astro-cid-ukvus4ql]{background:#fff9f0;border-left:4px solid #b45309;padding:.65rem 1rem;border-radius:0 6px 6px 0;margin:1rem 0 1.5rem;font-size:.95rem;color:#78350f}.callout-card[data-astro-cid-ukvus4ql]{background-color:#fff9f2;border-left:4px solid var(--btn-brown);border-radius:12px;padding:1.5rem;margin:2rem 0}.alert-callout[data-astro-cid-ukvus4ql]{background-color:#fff5f5;border-left-color:#e53e3e}.alert-callout[data-astro-cid-ukvus4ql] h3[data-astro-cid-ukvus4ql]{color:#c53030;margin-top:0}.mitm-strip-diagram[data-astro-cid-ukvus4ql]{margin-top:1.25rem;background-color:#fff;border:1.5px solid #feb2b2;border-radius:12px;padding:.85rem 1.15rem;box-shadow:0 3px 10px #c530300f;display:flex;align-items:center;justify-content:space-between;gap:.65rem;overflow-x:auto}.strip-node[data-astro-cid-ukvus4ql]{display:flex;align-items:center;gap:.5rem;padding:.45rem .75rem;border-radius:8px;background-color:#f7fafc;border:1.5px solid #e2e8f0;flex-shrink:0}.strip-node[data-astro-cid-ukvus4ql].node-koala{background-color:#fff5f5;border:2px solid #e53e3e;box-shadow:0 2px 8px #e53e3e1f}.node-emoji[data-astro-cid-ukvus4ql]{font-size:1.6rem;line-height:1;display:inline-block}.koala-strip-img[data-astro-cid-ukvus4ql]{width:32px;height:32px;object-fit:contain;flex-shrink:0}.node-info[data-astro-cid-ukvus4ql]{display:flex;flex-direction:column;gap:.1rem;text-align:left}.node-info[data-astro-cid-ukvus4ql] strong[data-astro-cid-ukvus4ql]{font-size:.86rem;color:#2d1509;line-height:1.15;white-space:nowrap}.node-sub[data-astro-cid-ukvus4ql]{font-size:.72rem;color:#718096;white-space:nowrap}.koala-name[data-astro-cid-ukvus4ql]{color:#c53030!important}.koala-action[data-astro-cid-ukvus4ql]{font-size:.72rem;font-weight:700;color:#9b2c2c;white-space:nowrap}.strip-flow[data-astro-cid-ukvus4ql]{display:flex;flex-direction:column;align-items:center;gap:.25rem;flex:1;min-width:140px}.flow-tag[data-astro-cid-ukvus4ql]{font-size:.72rem;font-weight:700;padding:.15rem .5rem;border-radius:6px;white-space:nowrap}.tag-fake[data-astro-cid-ukvus4ql]{background-color:#fff5f5;color:#c53030;border:1px solid #feb2b2}.tag-real[data-astro-cid-ukvus4ql]{background-color:#f0fdf4;color:#166534;border:1px solid #bbf7d0}.flow-vector[data-astro-cid-ukvus4ql]{display:flex;align-items:center;width:100%}.vector-alert[data-astro-cid-ukvus4ql]{color:#e53e3e}.vector-normal[data-astro-cid-ukvus4ql]{color:#2b6cb0}.vector-stem[data-astro-cid-ukvus4ql]{flex-grow:1;height:2px;background-color:currentColor;border-radius:1px}.vector-tip[data-astro-cid-ukvus4ql]{font-size:.75rem;line-height:1;margin-left:-2px}.concept-cards-grid[data-astro-cid-ukvus4ql]{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin:1.5rem 0}.concept-card[data-astro-cid-ukvus4ql]{background-color:var(--card-bg, #fff);border:1px solid var(--border-color, #e2d9cf);border-radius:12px;padding:1.5rem;box-shadow:0 4px 12px #3d23140d}.concept-card[data-astro-cid-ukvus4ql] h4[data-astro-cid-ukvus4ql]{margin-top:0;color:var(--btn-brown)}.interactive-demo[data-astro-cid-ukvus4ql]{padding:1.75rem 2rem}.interactive-demo[data-astro-cid-ukvus4ql] .demo-header[data-astro-cid-ukvus4ql]{margin-bottom:1.25rem}.interactive-demo[data-astro-cid-ukvus4ql] .factory-layout[data-astro-cid-ukvus4ql]{gap:.85rem}.example-switcher[data-astro-cid-ukvus4ql]{display:flex;gap:1rem;margin-bottom:0}.example-tab[data-astro-cid-ukvus4ql]{flex:1;padding:.75rem 1.15rem;border-radius:12px;border:2px solid #e2d9cf;background-color:#fff;cursor:pointer;text-align:left;transition:all .2s ease;outline:none}.example-tab[data-astro-cid-ukvus4ql]:hover{border-color:var(--btn-brown);background-color:#fdfaf6}.example-tab[data-astro-cid-ukvus4ql].active{border-color:var(--btn-brown);background-color:#fdfaf6;box-shadow:0 6px 16px #5a45382e,0 2px 4px #0000000d;transform:translateY(-2px)}#pkiModeNoCertBtn[data-astro-cid-ukvus4ql].active{border-color:var(--tier-core-primary, #b45309);box-shadow:0 6px 18px #b4530940,0 2px 4px #0000000d}#pkiModeWithCertBtn[data-astro-cid-ukvus4ql].active{border-color:var(--tier-applied-primary, #047857);box-shadow:0 6px 18px #04785740,0 2px 4px #0000000d}.example-tab[data-astro-cid-ukvus4ql].pulse-attention{border-color:var(--tier-applied-primary, #047857);animation:example-tab-pulse 2s infinite ease-in-out}.example-tab[data-astro-cid-ukvus4ql].pulse-attention:hover,.example-tab[data-astro-cid-ukvus4ql].pulse-attention:focus{animation-play-state:paused}@keyframes example-tab-pulse{0%{transform:translateY(0) scale(1);box-shadow:0 2px 6px #0000000f,0 0 #04785799}50%{transform:translateY(-2px) scale(1.02);box-shadow:0 6px 18px #04785747,0 0 18px 4px #04785773}to{transform:translateY(0) scale(1);box-shadow:0 2px 6px #0000000f,0 0 #04785700}}@media(prefers-reduced-motion:reduce){.example-tab[data-astro-cid-ukvus4ql].pulse-attention{animation:none}}.tab-badge[data-astro-cid-ukvus4ql]{display:inline-block;font-size:.72rem;font-weight:800;text-transform:uppercase;padding:2px 8px;border-radius:6px;margin-bottom:.35rem}.tab-badge[data-astro-cid-ukvus4ql].warning{background-color:#fed7d7;color:#9b2c2c;border:1px solid #feb2b2}.tab-badge[data-astro-cid-ukvus4ql].success{background-color:#c6f6d5;color:#22543d;border:1px solid #9ae6b4}.tab-title[data-astro-cid-ukvus4ql]{font-size:1.05rem;font-weight:700;color:var(--text-dark);display:block}.tab-sub[data-astro-cid-ukvus4ql]{font-size:.85rem;color:#666;display:block;margin-top:2px}.factory-controls[data-astro-cid-ukvus4ql]{display:flex;justify-content:space-between;align-items:center;margin-bottom:0;padding:.75rem 1.25rem;flex-wrap:wrap;gap:1rem}.input-group[data-astro-cid-ukvus4ql]{display:flex;align-items:center;gap:.75rem}.input-group[data-astro-cid-ukvus4ql] label[data-astro-cid-ukvus4ql]{font-weight:700;color:var(--text-dark)}.input-group[data-astro-cid-ukvus4ql] input[data-astro-cid-ukvus4ql]{padding:.6rem 1rem;border-radius:8px;border:2px solid #ccc;font-size:1rem}.input-group[data-astro-cid-ukvus4ql] input[data-astro-cid-ukvus4ql]:focus{border-color:#0288d1;outline:none}.factory-btn[data-astro-cid-ukvus4ql]{padding:.8rem 1.4rem;border-radius:8px;font-weight:700;cursor:pointer;border:none;transition:all .2s}.secondary-btn[data-astro-cid-ukvus4ql]{background-color:#555;color:#fff;box-shadow:0 4px #333}.secondary-btn[data-astro-cid-ukvus4ql]:hover{background-color:#333}.step-progress-bar[data-astro-cid-ukvus4ql]{display:flex;align-items:center;justify-content:space-between;background-color:#fff;border:3px solid var(--border-color);border-radius:12px;padding:.65rem 1.25rem;margin-bottom:0}.step-dot[data-astro-cid-ukvus4ql]{background-color:#eee;border:3px solid #ccc;color:#666;padding:.55rem .85rem;border-radius:30px;font-weight:700;cursor:pointer;transition:all .2s;outline:none;font-size:.88rem}.step-dot[data-astro-cid-ukvus4ql].active{background-color:#0288d1;border-color:#01579b;color:#fff;box-shadow:0 4px 12px #0288d166;animation:subtle-pulse 2s infinite ease-in-out}.step-dot[data-astro-cid-ukvus4ql].active:hover,.step-dot[data-astro-cid-ukvus4ql].active:focus{animation:none}.step-dot[data-astro-cid-ukvus4ql].completed{background-color:#4ade80;border-color:#2e7d32;color:#1a0f08}.step-dot[data-astro-cid-ukvus4ql]:disabled{cursor:not-allowed;opacity:.6}.step-dot[data-astro-cid-ukvus4ql]:not(:disabled):hover:not(.active){background-color:#e1f5fe;border-color:#0288d1;color:#0288d1}.step-line[data-astro-cid-ukvus4ql]{flex-grow:1;height:4px;background-color:#ccc;margin:0 8px;border-radius:2px}.explanation-box[data-astro-cid-ukvus4ql]{background-color:#fff;border:2px solid var(--border-color);border-radius:12px;padding:.85rem 1.25rem;margin-bottom:0;box-shadow:0 4px 6px #0000000d}.explanation-box[data-astro-cid-ukvus4ql] h4[data-astro-cid-ukvus4ql]{margin:0 0 .5rem;color:var(--btn-brown);font-size:1.2rem}.explanation-box[data-astro-cid-ukvus4ql] p[data-astro-cid-ukvus4ql]{margin:0;font-size:1rem;color:var(--text-dark);line-height:1.5}.pki-banner[data-astro-cid-ukvus4ql]{margin-top:1rem;padding:.8rem 1rem;border-radius:8px;font-size:.95rem;line-height:1.4}.banner-danger[data-astro-cid-ukvus4ql]{background-color:#fff5f5;border:1px solid #feb2b2;color:#9b2c2c}.banner-success[data-astro-cid-ukvus4ql]{background-color:#f0fff4;border:1px solid #9ae6b4;color:#22543d}.factory-stage[data-astro-cid-ukvus4ql]{position:relative;border:4px solid var(--text-dark);border-radius:12px;background-color:var(--bg-cream);display:flex;justify-content:space-between;align-items:center;padding:1.5rem;min-height:390px;overflow:hidden}.watermark[data-astro-cid-ukvus4ql]{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:140px;opacity:.1;z-index:0;pointer-events:none;user-select:none}.character-zone[data-astro-cid-ukvus4ql]{width:220px;min-height:270px;display:flex;flex-direction:column;align-items:center;background-color:#ffffffd9;border:3px dashed #888;border-radius:12px;padding:1rem;z-index:2;position:relative;overflow:hidden}.character-zone[data-astro-cid-ukvus4ql] h4[data-astro-cid-ukvus4ql]{margin:0 0 .75rem;text-transform:uppercase;font-size:.95rem;color:var(--text-dark);border-bottom:2px solid var(--hero-tan);padding-bottom:.3rem;z-index:3;text-align:center;width:100%}.browser-padlock-badge[data-astro-cid-ukvus4ql]{font-size:.76rem;font-weight:700;padding:4px 8px;border-radius:6px;margin-bottom:.75rem;text-align:center;z-index:3;width:95%}.badge-neutral[data-astro-cid-ukvus4ql]{background-color:#edf2f7;color:#4a5568;border:1px solid #e2e8f0}.badge-warning[data-astro-cid-ukvus4ql]{background-color:#feebc8;color:#c05621;border:1px solid #fbd38d}.badge-danger[data-astro-cid-ukvus4ql]{background-color:#fed7d7;color:#9b2c2c;border:1px solid #feb2b2}.badge-success[data-astro-cid-ukvus4ql]{background-color:#c6f6d5;color:#22543d;border:1px solid #9ae6b4}.bob-inventory[data-astro-cid-ukvus4ql],.jane-inventory[data-astro-cid-ukvus4ql]{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;width:100%;z-index:3}.item-card[data-astro-cid-ukvus4ql]{background:#fff;border:2px solid var(--border-color);border-radius:8px;padding:.5rem;text-align:center;width:85px;box-shadow:0 4px 6px #0000001a;animation:popIn .3s cubic-bezier(.175,.885,.32,1.275)}.item-card-danger[data-astro-cid-ukvus4ql]{border-color:#feb2b2;background-color:#fff5f5}.item-card-cert[data-astro-cid-ukvus4ql]{border-color:#9ae6b4;background-color:#f0fff4}.item-card-ca[data-astro-cid-ukvus4ql]{border-color:#fbd38d;background-color:#fffaf0}.item-card-encrypted[data-astro-cid-ukvus4ql]{border-color:#cbd5e0;background-color:#f7fafc}.recipe-card[data-astro-cid-ukvus4ql]{background:#fff9c4;border-color:#fbc02d;width:auto;min-width:60px}.internet-zone[data-astro-cid-ukvus4ql]{width:220px;min-height:270px;display:flex;flex-direction:column;align-items:center;background-color:#ffffffd9;border:3px dashed #888;border-radius:12px;padding:1rem;z-index:2;justify-content:flex-end;position:relative}.koala-spy[data-astro-cid-ukvus4ql]{width:140px;object-fit:contain;z-index:1}.spy-bubble[data-astro-cid-ukvus4ql]{position:absolute;top:8%;background:#fff;border:2px solid var(--text-dark);border-radius:12px;padding:.75rem;font-weight:700;text-align:center;width:210px;box-shadow:0 4px 8px #0003;z-index:3;font-size:.85rem}.spy-bubble[data-astro-cid-ukvus4ql]:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);border-width:10px 10px 0;border-style:solid;border-color:var(--text-dark) transparent transparent transparent}.traveling-object[data-astro-cid-ukvus4ql]{position:absolute;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;z-index:10;background:#fff;border:3px solid #0288d1;border-radius:50%;padding:.8rem;box-shadow:0 10px 20px #0000004d}@keyframes popIn{0%{transform:scale(0)}to{transform:scale(1)}}.real-world-box[data-astro-cid-ukvus4ql]{background-color:#f7fafc;border:1px solid #e2e8f0;border-radius:12px;padding:1.75rem;margin:2.5rem 0}.real-world-box[data-astro-cid-ukvus4ql] h3[data-astro-cid-ukvus4ql]{margin-top:0;color:#2d3748}.lesson-navigation[data-astro-cid-ukvus4ql]{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-top:3rem;padding-top:2rem;border-top:1px solid #e2d9cf;width:100%;box-sizing:border-box}@media(max-width:1100px){.example-switcher[data-astro-cid-ukvus4ql]{flex-direction:column}.step-progress-bar[data-astro-cid-ukvus4ql]{flex-wrap:wrap;gap:.5rem}.step-line[data-astro-cid-ukvus4ql]{display:none}.factory-stage[data-astro-cid-ukvus4ql]{flex-direction:column;gap:1rem}.character-zone[data-astro-cid-ukvus4ql],.character-zone[data-astro-cid-ukvus4ql].internet-zone,.character-zone[data-astro-cid-ukvus4ql].jane-zone,.character-zone[data-astro-cid-ukvus4ql].bob-zone{width:100%;max-width:100%;height:auto;min-height:150px;box-sizing:border-box}}@media(max-width:600px){.factory-controls[data-astro-cid-ukvus4ql]{flex-direction:column;align-items:stretch}.input-group[data-astro-cid-ukvus4ql]{flex-direction:column;align-items:flex-start;width:100%}.input-group[data-astro-cid-ukvus4ql] input[data-astro-cid-ukvus4ql]{width:100%;box-sizing:border-box}.factory-btn[data-astro-cid-ukvus4ql]{width:100%}.mitm-strip-diagram[data-astro-cid-ukvus4ql]{flex-direction:column;align-items:stretch;gap:.65rem}.strip-flow[data-astro-cid-ukvus4ql]{min-width:0;width:100%}.flow-vector[data-astro-cid-ukvus4ql]{justify-content:center;width:auto}.vector-stem[data-astro-cid-ukvus4ql]{width:2px;height:14px;flex-grow:0}.vector-tip[data-astro-cid-ukvus4ql]{transform:rotate(90deg);margin-left:0;margin-top:-2px}.step-progress-bar[data-astro-cid-ukvus4ql]{flex-direction:column;align-items:stretch;gap:.45rem;padding:.75rem}.step-dot[data-astro-cid-ukvus4ql]{width:100%;text-align:center;padding:.6rem .5rem;font-size:.82rem;box-sizing:border-box}.spy-bubble[data-astro-cid-ukvus4ql]{width:90%;max-width:210px;box-sizing:border-box}.factory-stage[data-astro-cid-ukvus4ql]{padding:.85rem .65rem}.lesson-navigation[data-astro-cid-ukvus4ql]{flex-direction:column;align-items:stretch;gap:.75rem;width:100%}.lesson-navigation[data-astro-cid-ukvus4ql] .btn[data-astro-cid-ukvus4ql]{width:100%;text-align:center;white-space:normal;box-sizing:border-box;padding:.85rem 1rem}}