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auto}.mb-svg-vessel{max-width:280px}.mb-bar-label{fill:#374151;font-size:11px;font-weight:600;font-family:inherit}.mb-value-text{fill:#374151;font-size:12px;font-weight:700;font-family:inherit}.mb-ruler-body{fill:#fdf6e3;stroke:#d9cdb8;stroke-width:1}.mb-tick{stroke:#8a7b63;stroke-width:1.4}.mb-tick-num{fill:#6f6452;font-size:9.5px;font-weight:600;font-family:inherit}.mb-unit{fill:#6f6452;font-size:10px;font-weight:700;font-family:inherit}.cmp-wrap{display:flex;align-items:center;justify-content:center;gap:16px;padding:20px 24px;margin:12px 0 4px;background:#f8fafc;border-radius:14px;border:2px solid #e2e8f0}.cmp-number{font-size:2.8rem;font-weight:700;color:#1e293b;min-width:56px;text-align:center;line-height:1;white-space:nowrap}.cmp-number--l{font-size:2rem}.cmp-number--xl{font-size:1.5rem}.cmp-symbol{font-size:2.4rem;font-weight:700;color:#1e40af;min-width:48px;text-align:center;line-height:1}.cmp-symbol--unknown{color:#b45309;border:2.5px dashed 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h3{font-size:1.25rem;line-height:1.2}.practice-guide-card p{color:#54719c}.practice-recent-list{list-style:none;padding:0;margin-top:12px}.practice-recent-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid rgba(79,142,247,.1)}.practice-recent-item:last-child{border-bottom:none}.practice-recent-item div{display:grid;gap:2px}.practice-recent-item span{color:#6480a8;font-size:.92rem}.practice-recent-score{font-weight:800;color:#23446f}.session-screen{gap:18px}.session-overview-card{background:linear-gradient(180deg,#fbfdff,#f6fbff)}.session-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(290px,.8fr);gap:16px;align-items:start}.session-main-column{min-width:0}.session-main-column .question-card{min-height:100%;gap:20px;padding:24px;border-radius:28px;background:linear-gradient(180deg,#fffffff5,#f6fafff5)}.session-main-column .question-card h2{font-size:clamp(1.5rem,2.8vw,2.25rem);line-height:1.15;letter-spacing:-.02em}.session-main-column .option-grid{gap:12px}.session-main-column .option-btn,.session-main-column .tick-btn{border-radius:18px;min-height:72px;font-size:1.15rem}.session-main-column .key-btn{border-radius:18px;font-size:1.6rem}.session-main-column .answer-display{width:fit-content;min-width:88px;height:72px;min-height:unset;padding-inline:16px;font-size:2.2rem;border-radius:16px}.session-main-column .answer-display.answer-long{font-size:1.8rem}.session-main-column .keypad{grid-template-columns:repeat(3,minmax(0,1fr));max-width:300px;margin:0 auto}.session-main-column .tf-cell{width:52px;height:52px}.session-side-column,.session-support-card,.session-control-card{display:grid;gap:14px}.session-support-head{display:flex;align-items:start;justify-content:space-between;gap:12px}.session-support-head h3{font-size:1.12rem;line-height:1.25}.session-status-pill{flex-shrink:0;padding:8px 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h3{font-size:1.2rem;line-height:1.35}.summary-stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.summary-stat-card{padding:14px 16px;border-radius:18px;border:1px solid rgba(79,142,247,.1);background:#ffffffd1;color:#54719c}.summary-stat-card strong{display:block;font-size:1.7rem;color:#23446f;line-height:1;margin-bottom:4px}.summary-actions{display:grid;gap:10px}.parent-summary{display:grid;gap:10px;text-align:left;background:linear-gradient(180deg,#fbfdff,#f6faff);border-radius:22px}.pd-header{display:flex;align-items:center;gap:14px}.pd-header>div:nth-child(2){flex:1}.pd-auth-btn{margin-left:auto}.pd-auth-callout{display:grid;gap:14px;background:linear-gradient(180deg,#ffffff,var(--sm-bg-2))}.pd-auth-callout h3{font-size:1.18rem;line-height:1.3;margin-top:2px}.pd-auth-actions{display:flex;flex-wrap:wrap;gap:10px}.auth-card{display:grid;gap:12px}.auth-back{justify-self:start}.auth-note{margin:0;color:var(--sm-ink-2);line-height:1.5}@media(max-width:940px){.practice-hero,.practice-layout,.session-layout,.summary-layout{grid-template-columns:1fr}.session-main-column .keypad{grid-template-columns:repeat(3,minmax(0,1fr))}.session-main-column .key-clear{grid-column:span 1}}@media(max-width:760px){.practice-board-head,.practice-section-title,.session-support-head{flex-direction:column;align-items:flex-start}.practice-hero-actions,.pd-auth-actions{flex-direction:column}.practice-hero-actions .btn,.pd-auth-actions .btn{width:100%}.count-pill-row{justify-content:stretch}.count-pill{flex:1 1 calc(50% - 8px)}.summary-stat-grid{grid-template-columns:1fr}}.cd-screen{max-width:1100px;margin:0 auto}.cd-header{display:flex;align-items:center;gap:16px;margin-bottom:8px}.cd-header 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#6e4560}.wex-overflow{display:grid;grid-template-columns:repeat(5,42px);gap:5px;min-height:42px}.wex-overflow-cell{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--sm-plum-soft),#a78bfa);border:2px solid #7c3aed;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px #8e5f7b33}.wex-highlight{animation:wex-glow 1.4s ease-in-out infinite}.wex-label{font-size:.75rem;font-weight:700;color:var(--sm-ink-2);text-transform:uppercase;letter-spacing:.05em}.wex-plus{font-size:1.8rem;font-weight:800;color:var(--sm-ink-3);padding-bottom:22px}.wex-total{display:flex;align-items:baseline;justify-content:center;gap:10px;margin-top:6px;animation:wex-write-in .6s ease-out .2s both}.wex-equals{font-size:1.8rem;font-weight:800;color:var(--sm-ink-3)}.wex-total-number{font-size:2rem;font-weight:800;color:var(--sm-ink)}.wex-fly-dot{position:absolute;top:0;left:0;width:24px;height:24px;border-radius:50%;background:var(--sm-plum);box-shadow:inset 0 -3px 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ease}.wex-dot.active{background:var(--sm-accent)}.wex-next{background:var(--sm-accent);color:#fff;font-size:1rem;font-weight:700;border:none;padding:12px 20px;border-radius:12px;cursor:pointer;justify-self:center;min-width:180px;transition:background .12s ease}.wex-next:hover{background:var(--sm-accent)}@keyframes wex-fade-in{0%{opacity:0}to{opacity:1}}@keyframes wex-slide-up{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes wex-pulse{0%,to{border-color:var(--sm-line-2);background:var(--sm-bg);transform:scale(1)}50%{border-color:var(--sm-ink-2);background:var(--sm-line);transform:scale(1.05)}}@keyframes wex-cell-enter{0%{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}@keyframes wex-land{0%{transform:scale(.6)}60%{transform:scale(1.08)}to{transform:scale(1)}}@keyframes wex-glow{0%,to{box-shadow:0 2px 4px #8e5f7b33}50%{box-shadow:0 0 0 4px #8e5f7b40,0 2px 4px #8e5f7b33}}@keyframes wex-fly{0%{transform:translate(var(--start-x),var(--start-y))}to{transform:translate(var(--end-x),var(--end-y))}}@keyframes wex-write-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.wex-seq-wrap{position:relative;display:flex;flex-direction:column;align-items:center;gap:28px;padding-top:36px}.wex-seq-row{display:flex;gap:8px;align-items:center}.wex-seq-cell{width:60px;height:60px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;font-weight:700;transition:background .22s ease,border-color .22s ease}.wex-seq-cell-wide{height:64px;font-size:1.05rem;padding:0 6px}.wex-seq-filled{background:linear-gradient(135deg,var(--sm-accent-soft),#E5B3A3);border:2px solid var(--sm-accent);color:var(--sm-ink);box-shadow:0 2px 4px #7a5af82e}.wex-seq-blank{background:var(--sm-bg);border:2px dashed var(--sm-line-2);color:transparent}.wex-seq-emph{border-color:#d97706;background:#fffbeb}.wex-seq-enter{animation:wex-seq-enter .32s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--seq-enter-i, 0) * .22s)}@keyframes wex-seq-enter{0%{opacity:0;transform:translateY(8px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}.wex-seq-hop{position:absolute;top:0;left:0;transform:translate(var(--hop-from-x));animation:wex-seq-hop 1.1s cubic-bezier(.4,.2,.2,1) .2s forwards}.wex-seq-hop-label{display:inline-block;padding:4px 10px;border-radius:999px;background:#fde68a;color:#92400e;font-size:.95rem;font-weight:700;box-shadow:0 2px 4px #92400e2e;transform:translate(-50%)}@keyframes wex-seq-hop{0%{transform:translate(var(--hop-from-x)) translateY(0)}50%{transform:translate(calc((var(--hop-from-x) + var(--hop-to-x)) / 2)) translateY(-20px)}to{transform:translate(var(--hop-to-x)) translateY(0)}}.wex-seq-write-in{animation:wex-seq-write-in .54s cubic-bezier(.21,1,.39,1) both}@keyframes wex-seq-write-in{0%{opacity:0;transform:scale(.5)}60%{opacity:1;transform:scale(1.1)}to{opacity:1;transform:scale(1)}}.wex-pw-wrap{display:flex;flex-direction:column;align-items:center;gap:12px;padding:8px 0}.wex-pw-whole-row,.wex-pw-parts-row{display:flex;align-items:center;gap:18px}.wex-pw-cell{min-width:60px;height:60px;padding:0 8px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;font-weight:700;transition:background .22s ease,border-color .22s ease}.wex-pw-filled{background:linear-gradient(135deg,var(--sm-accent-soft),#E5B3A3);border:2px solid var(--sm-accent);color:var(--sm-ink);box-shadow:0 2px 4px #7a5af82e}.wex-pw-whole{background:linear-gradient(135deg,#fde68a,#fbbf24);border-color:#d97706;box-shadow:0 2px 4px #d9770633;font-size:1.8rem}.wex-pw-blank{background:var(--sm-bg);border:2px dashed var(--sm-line-2);color:transparent}.wex-pw-plus{font-size:1.1rem;font-weight:700;color:var(--sm-ink-2);text-transform:lowercase;letter-spacing:.02em}.wex-pw-connectors{display:block;width:180px;height:28px;overflow:visible}.wex-pw-enter{animation:wex-pw-enter .32s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--pw-enter-i, 0) * .22s)}@keyframes wex-pw-enter{0%{opacity:0;transform:translateY(8px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}.wex-pw-count-up{display:flex;gap:10px;margin-top:4px}.wex-pw-chip{display:inline-block;padding:4px 12px;border-radius:999px;background:#fde68a;color:#92400e;font-size:1.05rem;font-weight:700;box-shadow:0 2px 4px #92400e2e;animation:wex-pw-chip-in .36s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--pw-chip-i, 0) * .42s + .2s)}@keyframes wex-pw-chip-in{0%{opacity:0;transform:translateY(-6px) scale(.7)}to{opacity:1;transform:translateY(0) scale(1)}}.wex-pw-write-in{animation:wex-pw-write-in .54s cubic-bezier(.21,1,.39,1) both}@keyframes wex-pw-write-in{0%{opacity:0;transform:scale(.5)}60%{opacity:1;transform:scale(1.1)}to{opacity:1;transform:scale(1)}}.wex-tf-wrap{display:flex;flex-direction:column;align-items:center;gap:8px}.wex-tf-grid{display:grid;grid-template-columns:repeat(var(--tf-cols, 5),1fr);gap:6px}.wex-tf-cell{position:relative;width:36px;height:36px;border-radius:6px;border:2px solid #94a3b8;display:flex;align-items:center;justify-content:center}.wex-tf-empty{border-style:dashed;background:transparent}.wex-tf-filled{background:#dbeafe;border-color:#3b82f6}.wex-tf-dot{width:16px;height:16px;border-radius:50%;background:#3b82f6}.wex-tf-emoji{font-size:1.2rem;line-height:1}.wex-tf-new{animation:wex-tf-fill-in .36s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--tf-enter-i, 0) * .42s + .2s)}@keyframes wex-tf-fill-in{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}.wex-tf-count-badge{position:absolute;top:-12px;right:-8px;background:#fde68a;color:#92400e;font-size:.7rem;font-weight:800;border-radius:999px;padding:1px 5px;box-shadow:0 2px 4px #92400e2e;animation:wex-pw-chip-in .36s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--tf-enter-i, 0) * .42s + .26s)}.wex-tf-context{font-size:.85rem;font-weight:600;color:#64748b;text-transform:capitalize}.wex-mir-wrap{display:flex;flex-direction:column;align-items:center;gap:16px}.wex-mir-row{display:flex;align-items:center;gap:24px}.wex-mir-column{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:44px}.wex-mir-dot-row{display:flex;align-items:center;gap:10px}.wex-mir-count{display:inline-block;min-width:28px;padding:2px 8px;border-radius:999px;background:#fde68a;color:#92400e;font-size:.95rem;font-weight:700;text-align:center;box-shadow:0 2px 4px #92400e2e}.wex-mir-count-in{animation:wex-mir-count-in .38s cubic-bezier(.4,.2,.2,1) both;animation-delay:calc(var(--mir-mirror-i, 0) * .22s + .32s)}@keyframes wex-mir-count-in{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}.wex-mir-dot{width:28px;height:28px;border-radius:50%;background:var(--sm-accent);box-shadow:inset 0 -3px 0 var(--sm-accent-2)}.wex-mir-blank{background:transparent;border:2px dashed var(--sm-line-2);box-shadow:none}.wex-mir-label{margin-top:6px;font-size:.75rem;font-weight:700;color:var(--sm-ink-2);text-transform:uppercase;letter-spacing:.05em}.wex-mir-line{width:3px;align-self:stretch;background:linear-gradient(to bottom,#fbbf24,#d97706);border-radius:999px;min-height:180px}.wex-mir-enter{animation:wex-mir-enter .32s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--mir-enter-i, 0) * .18s)}@keyframes wex-mir-enter{0%{opacity:0;transform:translate(-8px) scale(.7)}to{opacity:1;transform:translate(0) scale(1)}}.wex-mir-mirror-in{animation:wex-mir-mirror-in .38s cubic-bezier(.4,.2,.2,1) both;animation-delay:calc(var(--mir-mirror-i, 0) * .22s + .2s)}@keyframes wex-mir-mirror-in{0%{opacity:0;transform:translate(-18px) scale(.6)}to{opacity:1;transform:translate(0) scale(1)}}.wex-mir-total{display:flex;align-items:baseline;justify-content:center;gap:10px;margin-top:8px;animation:wex-mir-write-in .6s ease-out .2s both}.wex-mir-equals{font-size:1.8rem;font-weight:800;color:var(--sm-ink-3)}.wex-mir-total-number{font-size:2rem;font-weight:800;color:var(--sm-ink)}@keyframes wex-mir-write-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.wex-nl-wrap{width:100%;max-width:440px;padding:0 10px}.wex-nl-svg{display:block;overflow:visible}.wex-nl-start-pulse{animation:wex-nl-start-pulse 1.4s ease-out infinite;transform-origin:center;transform-box:fill-box}@keyframes wex-nl-start-pulse{0%{transform:scale(.5);opacity:1;stroke-width:4}to{transform:scale(2.2);opacity:0;stroke-width:1}}.wex-nl-hop-path{stroke-dasharray:1000;stroke-dashoffset:1000;animation:wex-nl-draw-path 1.2s cubic-bezier(.4,0,.2,1) forwards}@keyframes wex-nl-draw-path{0%{stroke-dashoffset:1000}to{stroke-dashoffset:0}}.wex-nl-hop-label{animation:wex-fade-in .4s ease-out .8s both}.wex-nl-hop-dot{animation:wex-nl-dot-pop .4s cubic-bezier(.17,.89,.32,1.49) 1.1s both;transform-origin:center;transform-box:fill-box}@keyframes wex-nl-dot-pop{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.wex-nl-result{animation:wex-fade-in .4s ease-out both;transform-origin:center;transform-box:fill-box}.wex-ta-wrap{display:flex;flex-direction:column;align-items:center;gap:18px}.wex-ta-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:center}.wex-ta-counter{position:relative;width:36px;height:36px;display:flex;align-items:center;justify-content:center}.wex-ta-dot{width:100%;height:100%;border-radius:50%;background:linear-gradient(135deg,var(--sm-accent-soft),#9B82FA);border:2px solid var(--sm-accent);box-shadow:0 2px 4px #7a5af840}.wex-ta-enter{animation:wex-ta-enter .32s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--ta-enter-i, 0) * .14s)}@keyframes wex-ta-enter{0%{opacity:0;transform:translateY(8px) scale(.7)}to{opacity:1;transform:translateY(0) scale(1)}}.wex-ta-fade-out .wex-ta-dot{animation:wex-ta-fade-out .38s cubic-bezier(.4,.2,.2,1) both;animation-delay:calc(var(--ta-fade-i, 0) * .52s + .2s)}@keyframes wex-ta-fade-out{0%{opacity:1;transform:scale(1)}to{opacity:.18;transform:scale(.7)}}.wex-ta-faded .wex-ta-dot{opacity:.18;transform:scale(.7)}.wex-ta-count{position:absolute;top:-22px;left:50%;transform:translate(-50%);padding:2px 8px;border-radius:999px;background:#fde68a;color:#92400e;font-size:.85rem;font-weight:700;box-shadow:0 2px 4px #92400e2e;animation:wex-ta-count-in .36s cubic-bezier(.21,1,.39,1) both;animation-delay:calc(var(--ta-fade-i, 0) * .52s + .32s)}@keyframes wex-ta-count-in{0%{opacity:0;transform:translate(-50%) scale(.5)}to{opacity:1;transform:translate(-50%) scale(1)}}.wex-ta-remaining .wex-ta-dot{animation:wex-ta-glow 1.5s ease-in-out infinite}@keyframes wex-ta-glow{0%,to{box-shadow:0 2px 4px #7a5af840}50%{box-shadow:0 0 0 4px #0e9f4e59,0 2px 4px #7a5af840}}.wex-ta-total{display:flex;align-items:baseline;justify-content:center;gap:10px;margin-top:6px;animation:wex-ta-write-in .6s ease-out .2s both}.wex-ta-equals{font-size:1.8rem;font-weight:800;color:var(--sm-ink-3)}.wex-ta-total-number{font-size:2rem;font-weight:800;color:var(--sm-ink)}@keyframes wex-ta-write-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.wex-og-wrap{display:flex;flex-direction:column;align-items:center;gap:1.25rem;padding:.5rem}.wex-og-groups{display:flex;flex-direction:row;gap:1rem;flex-wrap:wrap;justify-content:center}.wex-og-group{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:.75rem 1rem;border:2px solid var(--sm-accent);border-radius:.75rem;background:#2563eb0f;min-width:4rem}.wex-og-dots{display:flex;flex-wrap:wrap;gap:.2rem;justify-content:center;max-width:5rem}.wex-og-dot{font-size:1.6rem;line-height:1;display:block}.wex-og-enter{animation:wex-og-pop .35s cubic-bezier(.21,1.5,.39,1) both;animation-delay:calc(var(--og-i, 0) * .16s + .1s)}@keyframes wex-og-pop{0%{opacity:0;transform:scale(.3)}to{opacity:1;transform:scale(1)}}.wex-og-subtotal{font-size:1.1rem;font-weight:700;color:var(--sm-accent);min-width:1.5rem;text-align:center}.wex-og-subtotal-in{animation:wex-og-fade-up .4s ease-out .46s both}.wex-og-total{text-align:center;animation:wex-og-fade-up .5s ease-out .2s both}.wex-og-total-text{font-size:1.25rem;font-weight:700;color:var(--sm-accent);background:#2563eb1a;padding:.3rem 1rem;border-radius:.5rem}@keyframes wex-og-fade-up{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.wex-cg-wrap{display:flex;flex-direction:column;align-items:center;gap:8px}.wex-cg-svg{width:280px;max-width:100%;height:auto}.wex-cg-coords{font:700 15px/1.2 Nunito,sans-serif;color:#3b82f6}.wex-ts-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:1rem;padding:.75rem 1.25rem}.wex-ts-problem,.wex-ts-row{display:flex;align-items:center;gap:.5rem}.wex-ts-num{font-size:1.6rem;font-weight:700;color:var(--sm-ink)}.wex-ts-op{font-size:1.4rem;color:var(--sm-ink-2)}.wex-ts-unknown{font-size:1.6rem;font-weight:700;color:#d97706;background:#d977061a;border:2px dashed #d97706;border-radius:.4rem;min-width:2rem;text-align:center;padding:0 .4rem}.wex-ts-step-add{font-size:1.6rem;font-weight:700;color:var(--sm-accent);background:#2563eb1a;border-radius:.4rem;padding:0 .35rem}.wex-ts-milestone{font-size:1.6rem;font-weight:700;color:var(--sm-accent);animation:wex-ts-land .45s cubic-bezier(.21,1,.39,1) both}.wex-ts-answer{font-size:2rem;font-weight:800;color:var(--sm-accent);animation:wex-ts-land .45s cubic-bezier(.21,1,.39,1) .18s both}@keyframes wex-ts-land{0%{opacity:0;transform:scale(.55) translateY(-8px)}to{opacity:1;transform:scale(1) translateY(0)}}.wex-ts-slide-in{animation:wex-ts-slide .38s ease-out both;padding-left:1rem;border-left:3px solid 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