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12px #0003}#timeline-slider::-moz-range-thumb{background:var(--accent);border:3px solid var(--panel-strong);cursor:grab;border-radius:50%;width:22px;height:22px;box-shadow:0 4px 12px #0003}.timeline-readout{flex-wrap:wrap;align-items:center;gap:14px;margin-top:14px;display:flex}.timeline-year{font-family:var(--mono);color:var(--ink-strong);letter-spacing:.02em;font-size:clamp(2rem,5vw,2.6rem);font-weight:700}.timeline-states{flex-wrap:wrap;gap:10px;display:flex}.state-chip{font-family:var(--mono);background:var(--panel);border:1px solid var(--line);color:var(--ink-soft);border-radius:999px;align-items:center;gap:8px;padding:6px 12px;font-size:.84rem;display:inline-flex}.state-chip strong{color:var(--ink-strong)}.state-chip[data-state=safe]{background:color-mix(in oklab, var(--accent-4) 18%, transparent);border-color:var(--accent-4);color:var(--accent-4)}.state-chip[data-state=safe] strong{color:var(--accent-4)}.state-chip[data-state=fragile]{background:color-mix(in oklab, var(--accent-3) 22%, transparent);border-color:var(--accent-3);color:color-mix(in oklab, var(--accent-3) 70%, var(--ink-strong))}.state-chip[data-state=fragile] strong{color:var(--ink-strong)}.state-chip[data-state=broken]{background:var(--warning-bg);border-color:var(--warning-border);color:var(--accent-2)}.state-chip[data-state=broken] strong{color:var(--accent-2)}.timeline-body{margin-top:14px}.timeline-body h3{color:var(--ink-strong);margin:0 0 6px}.timeline-implication{border:1px solid var(--line);border-radius:14px;margin-top:12px;padding:10px 14px;line-height:1.5}.timeline-implication[data-tone=ok]{background:color-mix(in oklab, var(--accent-4) 14%, transparent);border-color:var(--accent-4);color:var(--accent-4)}.timeline-implication[data-tone=warn]{background:color-mix(in oklab, var(--accent-3) 18%, transparent);border-color:var(--accent-3);color:color-mix(in oklab, var(--accent-3) 70%, var(--ink-strong))}.timeline-implication[data-tone=bad]{background:var(--warning-bg);border-color:var(--warning-border);color:var(--warning-fg)}.harvest-block{border-top:1px dashed var(--line);margin-top:18px;padding-top:16px}.harvest-block__label{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 12px;font-size:.78rem;font-weight:700}.harvest-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.harvest-card{border:1px solid var(--line);background:var(--panel);border-radius:18px;padding:16px 18px;transition:background .4s,border-color .4s;position:relative;overflow:hidden}.harvest-card--classical{border-left:4px solid var(--accent)}.harvest-card--hybrid{border-left:4px solid var(--accent-4);background:color-mix(in oklab, var(--accent-4) 10%, var(--panel))}.harvest-card__head{align-items:center;gap:12px;display:flex}.harvest-card__lock{background:var(--mono-block-bg);width:40px;height:40px;color:var(--mono-block-fg);border-radius:50%;place-items:center;font-size:1.2rem;transition:background .4s,transform .4s;display:inline-grid}.harvest-card__year{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);font-size:.7rem;font-family:var(--mono);margin:0}.harvest-card__title{color:var(--ink-strong);margin:2px 0 0;font-weight:700}.harvest-card__hash{margin:10px 0 0;padding:8px 10px;font-size:.78rem;display:block}.harvest-card__status{color:var(--ink-soft);font-size:.86rem;font-family:var(--mono);margin:8px 0 0}.harvest-card--hybrid .harvest-card__status{color:var(--accent-4)}.harvest-card__crack{pointer-events:none;opacity:0;background-image:linear-gradient(115deg, transparent 48%, color-mix(in oklab, var(--accent-2) 60%, transparent) 49%, color-mix(in oklab, var(--accent-2) 60%, transparent) 50%, transparent 51%), linear-gradient(65deg, transparent 38%, color-mix(in oklab, var(--accent-2) 60%, transparent) 39%, color-mix(in oklab, var(--accent-2) 60%, transparent) 40%, transparent 41%);transition:opacity .4s;position:absolute;inset:0}.harvest-card.is-cracked{background:var(--warning-bg);border-color:var(--warning-border)}.harvest-card.is-cracked .harvest-card__lock{background:var(--accent-2);color:#fff;transform:rotate(-12deg)}.harvest-card.is-cracked .harvest-card__hash{color:var(--accent-2);text-decoration:line-through}.harvest-card.is-cracked .harvest-card__status{color:var(--accent-2);font-weight:700}.harvest-card.is-cracked .harvest-card__crack{opacity:.9}@media (width<=720px){.harvest-grid{grid-template-columns:1fr}}.code-panel{border:1px solid var(--line);background:var(--panel);border-radius:18px;margin-top:14px;overflow:hidden}.code-panel>summary{cursor:pointer;color:var(--ink-strong);-webkit-user-select:none;user-select:none;padding:12px 18px;font-weight:700;list-style:none}.code-panel>summary::-webkit-details-marker{display:none}.code-panel>summary:before{content:"▸ ";color:var(--accent);transition:transform .18s;display:inline-block}.code-panel[open]>summary:before{content:"▾ "}.code-panel>summary:focus-visible{outline:2px solid var(--focus-ring);outline-offset:-2px}.code-block{background:var(--mono-block-bg);color:var(--mono-block-fg);font-family:var(--mono);white-space:pre;border-top:1px solid var(--line);margin:0;padding:14px 18px;font-size:.82rem;line-height:1.55;overflow-x:auto}.code-panel__actions{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:12px;padding:12px 18px;display:flex}.code-panel__hint{color:var(--ink-soft);font-size:.8rem}.attack-row{gap:14px;margin-top:18px;display:grid}.attack-row .action-button--danger{text-align:left;justify-self:start}.attack-result{border:1px solid var(--line);border-radius:14px;padding:14px 16px;font-size:.94rem;line-height:1.55}.attack-result code{background:var(--mono-block-bg);color:var(--mono-block-fg);font-family:var(--mono);border-radius:4px;padding:1px 6px;font-size:.86em}.attack-result[data-tone=bad]{background:var(--warning-bg);border-color:var(--warning-border);color:var(--warning-fg)}.attack-result[data-tone=ok]{background:color-mix(in oklab, var(--accent-4) 14%, transparent);border-color:var(--accent-4);color:var(--accent-4)}.attack-result strong{color:inherit}#session-key.is-attacked{border:1px solid var(--accent-2);animation:.48s key-shake}#session-key.is-shielded{border:1px solid var(--accent-4);animation:.6s key-shield}@keyframes key-shake{0%,to{transform:translate(0)}20%{transform:translate(-4px)}40%{transform:translate(4px)}60%{transform:translate(-3px)}80%{transform:translate(2px)}}@keyframes key-shield{0%,to{box-shadow:0 0 #0000}50%{box-shadow:0 0 0 6px color-mix(in oklab, var(--accent-4) 40%, transparent)}}@media 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span{background:linear-gradient(90deg, var(--accent-3), color-mix(in oklab, var(--accent-3) 60%, black))}.handshake-bar--hybrid span{background:linear-gradient(90deg, var(--accent-4), var(--accent))}.handshake-row__note{margin:4px 0 0}.middlebox-figure{margin:22px 0 0;padding:0}.middlebox-figure__caption{color:var(--ink-soft);margin:0 0 12px;font-size:.92rem;line-height:1.55}.middlebox-figure__caption strong{color:var(--ink-strong)}.middlebox-stage{border:1px solid var(--line);background:var(--panel);border-radius:20px;gap:14px;padding:18px 16px;display:grid}.mb-lane{grid-template-columns:130px 1fr 140px;align-items:center;gap:14px;display:grid}.mb-lane__tag{font-family:var(--mono);color:var(--ink-soft);font-size:.78rem}.mb-lane--pq .mb-lane__tag{color:var(--accent-3)}.mb-lane__track{background:var(--input-bg);border:1px solid var(--line);border-radius:14px;height:56px;position:relative;overflow:hidden}.mb-lane__verdict{font-family:var(--mono);font-size:.78rem}.mb-lane__verdict--ok{color:var(--accent-4)}.mb-lane__verdict--bad{color:var(--accent-2)}.mb-icon{background:var(--mono-block-bg);width:44px;height:30px;color:var(--mono-block-fg);font-family:var(--mono);letter-spacing:.04em;border-radius:8px;place-items:center;font-size:.62rem;display:inline-grid;position:absolute;top:50%;transform:translateY(-50%)}.mb-icon--client{left:8px}.mb-icon--firewall{background:var(--accent);width:60px;left:50%;transform:translate(-50%,-50%)}.mb-icon--firewall--strict{background:var(--accent-2)}.mb-icon--server{background:var(--accent-4);right:8px}.mb-packet{font-family:var(--mono);color:#08141d;white-space:nowrap;opacity:0;will-change:left, opacity, background;border-radius:999px;padding:4px 10px;font-size:.7rem;position:absolute;top:50%;transform:translateY(-50%)}.mb-packet--small{background:linear-gradient(135deg, var(--accent), color-mix(in oklab, var(--accent) 60%, white))}.mb-packet--big{background:linear-gradient(135deg, var(--accent-3), color-mix(in oklab, var(--accent-3) 70%, white))}[data-theme=dark] .mb-packet{color:#08141d}@media (prefers-reduced-motion:no-preference){.mb-packet--pass{animation:4.8s ease-in-out infinite mb-glide;animation-delay:var(--mb-delay,0s)}.mb-packet--drop{animation:4.8s ease-in-out infinite mb-bounce;animation-delay:var(--mb-delay,0s)}@keyframes mb-glide{0%{opacity:0;left:8%}8%{opacity:1}50%{opacity:1;left:50%}92%{opacity:1;left:88%}to{opacity:0;left:92%}}@keyframes mb-bounce{0%{opacity:0;left:8%}10%{opacity:1}45%{background:linear-gradient(135deg, var(--accent-3), color-mix(in oklab, var(--accent-3) 70%, white));left:48%}55%{background:linear-gradient(135deg, var(--accent-2), color-mix(in oklab, var(--accent-2) 70%, white));left:48%}85%{opacity:.6;left:12%}to{opacity:0;left:8%}}}@media (prefers-reduced-motion:reduce){.mb-packet--small{opacity:1;left:80%}.mb-packet--frag1{opacity:1;left:78%}.mb-packet--frag2{opacity:1;background:linear-gradient(135deg, var(--accent-2), color-mix(in oklab, var(--accent-2) 70%, white));left:48%}.mb-packet--frag3{opacity:1;left:18%}}@media (width<=720px){.mb-lane{grid-template-columns:1fr;gap:6px}.mb-lane__verdict{justify-self:start}}.bench-state{color:var(--ink-soft);margin:14px 0 0;font-size:.92rem}.bench-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0 0;padding:0;list-style:none;display:grid}.bench-tile{border:1px solid var(--line);background:var(--panel-strong);border-radius:18px;padding:16px 18px}.bench-tile--headline{background:var(--metric-bg);color:var(--metric-fg);border-color:#0000}.bench-tile__label{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin:0;font-size:.74rem;font-weight:700}.bench-tile--headline .bench-tile__label{color:var(--metric-muted)}.bench-tile__value{margin:8px 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0;font-style:italic;line-height:1.6}.footer-meta__sep{color:var(--ink-soft);margin:0 8px}.toast-root{z-index:200;pointer-events:none;gap:8px;max-width:100%;padding:0 14px;display:grid;position:fixed;bottom:18px;left:50%;transform:translate(-50%)}.toast{pointer-events:auto;background:var(--mono-block-bg);color:var(--mono-block-fg);border:1px solid var(--line);opacity:0;border-radius:999px;padding:12px 18px;font-size:.9rem;transition:opacity .18s,transform .22s;transform:translateY(8px);box-shadow:0 12px 28px #00000040}.toast.is-shown{opacity:1;transform:translateY(0)}.toast--ok{border-color:var(--accent-4)}.toast--warn{border-color:var(--accent-2)}.reveal{opacity:0;will-change:opacity, transform;transition:opacity .48s,transform .48s cubic-bezier(.22,1,.36,1);transform:translateY(14px)}.reveal.is-visible{opacity:1;transform:translateY(0)}@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transition:none;transform:none}}@media (width<=900px){.bitgrid-pair{grid-template-columns:1fr}}@media (width<=720px){.section-nav{border-radius:18px}.section-nav__link{padding:8px 12px;font-size:.82rem}.kbd-hint{display:none}.combiner-flow{grid-template-columns:1fr}.combiner-bar{flex-direction:column;align-items:stretch}.combiner-bar label,.combiner-bar select{width:100%}.combiner-bar .ghost-button{width:100%;margin-left:0}.session-key-row .ghost-button{width:100%}.decision-step{grid-template-columns:34px 1fr;gap:12px;padding:16px}.decision-num{width:30px;height:30px;font-size:.9rem}.scenario-presets__row{gap:8px}.preset-button{flex:calc(50% - 4px);justify-content:flex-start;min-width:0}.timeline-track{height:70px;margin:12px 0 4px}.timeline-track__pip{min-width:48px;padding:3px 6px;font-size:.66rem}.timeline-readout{gap:10px}.timeline-year{font-size:2rem}.hero-stat-grid{grid-template-columns:repeat(3,1fr);gap:6px}.hero-stat-grid dt{font-size:.62rem}.hero-stat-grid dd{font-size:.78rem}}