:root{--sdt-bg:#0b0f19;--sdt-surface:#111827;--sdt-surface-elevated:#1f2937;--sdt-surface-hover:#374151;--sdt-surface-card:#111827d9;--sdt-border:#374151;--sdt-border-subtle:#37415199;--sdt-border-highlight:#10b98180;--sdt-text:#f9fafb;--sdt-text-muted:#9ca3af;--sdt-text-dim:#94a3b8;--sdt-font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--sdt-font-sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--sdt-primary:#10b981;--sdt-primary-hover:#34d399;--sdt-on-primary:#052e23;--sdt-accent-amber:#f59e0b;--sdt-accent-blue:#93c5fd;--sdt-accent-purple:#8b5cf6;--sdt-success:#10b981;--sdt-danger:#f87171;--sdt-lane-inbox:#8b5cf6;--sdt-lane-pipeline:#06b6d4;--sdt-lane-monitoring:#f97316;--sdt-shadow-sm:0 2px 8px #00000040;--sdt-shadow-md:0 4px 20px #00000059;--sdt-shadow-lg:0 12px 40px #0009;--sdt-shadow-glow:0 0 20px #10b9814d;--sdt-radius-sm:6px;--sdt-radius-md:10px;--sdt-radius-lg:16px;--sdt-radius-full:9999px;--sdt-transition-fast:.15s ease;--sdt-transition-normal:.25s ease}:root[data-theme=light]{--sdt-bg:#f8fafc;--sdt-surface:#fff;--sdt-surface-elevated:#f3f4f6;--sdt-surface-hover:#e5e7eb;--sdt-surface-card:#fffffff2;--sdt-border:#d1d5db;--sdt-border-subtle:#d1d5dbcc;--sdt-border-highlight:#10b98199;--sdt-text:#111827;--sdt-text-muted:#4b5563;--sdt-text-dim:#475569;--sdt-primary:#047857;--sdt-primary-hover:#065f46;--sdt-on-primary:#fff;--sdt-success:#047857;--sdt-danger:#b91c1c;--sdt-accent-amber:#92400e;--sdt-accent-blue:#1d4ed8;--sdt-shadow-sm:0 2px 8px #1118270d;--sdt-shadow-md:0 4px 16px #1118270f;--sdt-shadow-lg:0 12px 40px #11182726}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.sdt-game-container{background-color:var(--sdt-bg);border:1px solid var(--sdt-border);border-radius:var(--sdt-radius-lg);width:100%;max-width:900px;min-height:0;box-shadow:var(--sdt-shadow-lg);font-family:var(--sdt-font-sans);color:var(--sdt-text);margin:0 auto;position:relative;overflow:hidden}.sdt-screen{box-sizing:border-box;flex-direction:column;justify-content:center;align-items:center;min-height:600px;padding:2rem 1.5rem;display:flex}.sdt-game-container .hidden,.sdt-screen.hidden{display:none!important}.sdt-btn{border-radius:var(--sdt-radius-md);cursor:pointer;transition:all var(--sdt-transition-fast);border:1px solid #0000;justify-content:center;align-items:center;gap:.6rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;text-decoration:none;display:inline-flex}.sdt-btn-primary{background-color:var(--sdt-primary);color:var(--sdt-on-primary);box-shadow:none}.sdt-btn-primary:hover,.sdt-btn-primary:focus-visible{background-color:var(--sdt-primary-hover);box-shadow:var(--sdt-shadow-sm);transform:translateY(-1px)}.sdt-btn-secondary{background-color:var(--sdt-surface-elevated);border-color:var(--sdt-border);color:var(--sdt-text)}.sdt-btn-secondary:hover,.sdt-btn-secondary:focus-visible{background-color:var(--sdt-surface-hover);border-color:var(--sdt-border-highlight);transform:translateY(-1px)}.sdt-btn-tertiary{border-color:var(--sdt-border-subtle);color:var(--sdt-text-muted);background-color:#0000}.sdt-btn-tertiary:hover,.sdt-btn-tertiary:focus-visible{background-color:var(--sdt-surface-elevated);color:var(--sdt-text)}.sdt-btn-large{width:100%;max-width:440px;min-height:64px;padding:.85rem 1rem;font-size:1rem}.sdt-btn-text{flex-direction:column;align-items:center;gap:4px;display:flex}.sdt-btn:focus-visible{outline:2px solid var(--sdt-primary);outline-offset:3px}.sdt-btn-hint{opacity:.85;font-size:.75rem;font-weight:400}#sdt-screen-title{background:radial-gradient(ellipse at 0% 0%, #10b98112, transparent 65%), var(--sdt-bg);min-height:0;padding:36px}.sdt-title-content{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);grid-template-areas:"hero challenge""actions actions""shortcuts shortcuts";align-items:center;gap:24px 32px;width:100%;display:grid}.sdt-title-hero{text-align:left;grid-area:hero}.sdt-challenge-card{grid-area:challenge}.sdt-title-subactions{grid-area:actions}.sdt-shortcuts-strip{grid-area:shortcuts}.sdt-stamp-banner{letter-spacing:.06em;color:var(--sdt-primary);align-items:center;gap:8px;font-size:12px;font-weight:750;display:inline-flex}.sdt-pulse-dot{background:currentColor;border-radius:50%;flex-shrink:0;width:6px;height:6px}.sdt-main-title{letter-spacing:-.04em;color:var(--sdt-text);text-wrap:balance;margin:16px 0;font-size:clamp(32px,4vw,44px);font-weight:850;line-height:1.1}.sdt-title-emoji{vertical-align:.05em;font-size:.7em}.sdt-tagline{color:var(--sdt-text-muted);text-wrap:pretty;margin:0;font-size:16px;line-height:1.6}.sdt-title-note{color:var(--sdt-text-dim);margin:18px 0 0;font-size:13px;line-height:1.5}.sdt-challenge-card{background:var(--sdt-surface);border:1px solid var(--sdt-border);box-sizing:border-box;min-width:0;box-shadow:var(--sdt-shadow-sm);border-radius:12px;padding:22px}.sdt-card-top{border-bottom:1px solid var(--sdt-border-subtle);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;padding-bottom:16px;display:flex}.sdt-badge{letter-spacing:.03em;color:var(--sdt-text);flex-wrap:wrap;align-items:center;gap:6px;font-size:12px;font-weight:700;display:flex}.sdt-badge .sdt-pulse-dot{color:var(--sdt-primary)}.sdt-streak-pill{color:var(--sdt-accent-amber);font-size:12px}.sdt-timer{color:var(--sdt-text-muted);align-items:center;gap:5px;font-size:12px;display:flex}.sdt-timer-icon{display:none}.sdt-countdown-val{font-family:var(--sdt-font-mono);font-variant-numeric:tabular-nums;color:var(--sdt-text-muted)}.sdt-challenge-details{text-align:left;flex-direction:column;gap:8px;margin-bottom:18px;display:flex}.sdt-date-tag{letter-spacing:-.02em;color:var(--sdt-text);font-size:24px;font-weight:750}.sdt-details-desc{color:var(--sdt-text-muted);font-size:14px;line-height:1.5}.sdt-subhints{color:var(--sdt-text-dim);flex-wrap:wrap;gap:8px 12px;margin:16px 0 0;font-size:12px;line-height:1.5;display:flex}.sdt-subhints span+span:before{content:"·";margin-right:8px}.sdt-scorecard-preview{flex-direction:column;align-items:center;gap:1rem;display:flex}.sdt-preview-header{align-items:center;gap:1rem;display:flex}.sdt-preview-status{color:var(--sdt-primary);font-weight:700}.sdt-preview-grade{border-radius:var(--sdt-radius-sm);background:var(--sdt-surface-elevated);padding:.2rem .6rem;font-weight:700}.sdt-preview-emojis{letter-spacing:.2rem;font-size:1.6rem}.sdt-preview-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;width:100%;margin:.5rem 0;display:grid}.sdt-pstat{flex-direction:column;align-items:center;display:flex}.sdt-pstat-lbl{color:var(--sdt-text-dim);text-transform:uppercase;font-size:.7rem}.sdt-pstat-val{font-size:1.2rem;font-weight:700}.sdt-preview-actions{flex-wrap:wrap;justify-content:center;gap:.75rem;width:100%;display:flex}.sdt-preview-actions .sdt-btn{flex:160px;padding:12px;font-size:14px}.sdt-title-subactions{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.sdt-title-subactions .sdt-btn{background:var(--sdt-surface);min-height:44px;padding:10px 14px;font-size:14px}.sdt-shortcuts-strip{color:var(--sdt-text-muted);border-top:1px solid var(--sdt-border-subtle);flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:20px;font-size:12px;display:flex}.sdt-shortcuts-strip kbd{font:11px var(--sdt-font-mono);background:var(--sdt-surface);border:1px solid var(--sdt-border);border-bottom-width:2px;border-radius:4px;padding:3px 5px}@media (width<=720px){#sdt-screen-title{padding:24px}.sdt-title-content{grid-template-columns:1fr;grid-template-areas:"hero""challenge""actions""shortcuts";gap:22px}.sdt-main-title{margin:12px 0;font-size:36px}.sdt-title-note{margin-top:10px}.sdt-title-subactions .sdt-btn{flex:auto}.sdt-shortcuts-strip{justify-content:center}}@media (width<=480px){#sdt-screen-title{padding:22px 18px}.sdt-challenge-card{padding:18px}.sdt-tagline{font-size:15px}.sdt-title-subactions{gap:8px}.sdt-title-subactions .sdt-btn{padding:10px;font-size:12px}.sdt-shortcuts-strip{display:none}}.sdt-modal-backdrop{backdrop-filter:blur(4px);z-index:100;box-sizing:border-box;background:#000000bf;justify-content:center;align-items:center;padding:1.5rem;display:flex;position:fixed;inset:0}.sdt-modal-backdrop.hidden{display:none!important}.sdt-modal-container{background:var(--sdt-surface);border:1px solid var(--sdt-border);border-radius:var(--sdt-radius-lg);width:100%;max-width:600px;max-height:85vh;box-shadow:var(--sdt-shadow-lg);flex-direction:column;display:flex;overflow:hidden}.sdt-modal-header{border-bottom:1px solid var(--sdt-border-subtle);justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;display:flex}.sdt-modal-title-wrap{align-items:center;gap:.6rem;display:flex}.sdt-modal-icon{font-size:1.3rem}.sdt-modal-title{margin:0;font-size:1.25rem;font-weight:700}.sdt-modal-close-btn{color:var(--sdt-text-muted);cursor:pointer;border-radius:var(--sdt-radius-sm);background:0 0;border:none;padding:.3rem .6rem;font-size:1.25rem}.sdt-modal-close-btn:hover{background:var(--sdt-surface-hover);color:var(--sdt-text)}.sdt-modal-body{padding:1.5rem;overflow-y:auto}.sdt-modal-desc{color:var(--sdt-text-muted);margin-top:0;margin-bottom:1.25rem;font-size:.9rem;line-height:1.5}.sdt-htp-body{flex-direction:column;gap:1.25rem;display:flex}.sdt-htp-section h3{color:var(--sdt-text);margin:0 0 .5rem;font-size:1.05rem}.sdt-htp-section p,.sdt-htp-section ul{color:var(--sdt-text-muted);margin:0;font-size:.88rem;line-height:1.5}.sdt-htp-section ul{padding-left:1.25rem}.sdt-htp-keys-grid{background:var(--sdt-surface-elevated);border-radius:var(--sdt-radius-md);border:1px solid var(--sdt-border-subtle);grid-template-columns:1fr 1fr;gap:1rem;margin-top:.5rem;padding:1rem;display:grid}.sdt-htp-key-col h4{color:var(--sdt-primary);margin:0 0 .5rem;font-size:.85rem}.sdt-htp-key-col div{align-items:center;gap:.5rem;margin-bottom:.35rem;font-size:.8rem;display:flex}.sdt-htp-key-col kbd{background:var(--sdt-surface);border:1px solid var(--sdt-border);font-family:var(--sdt-font-mono);border-radius:4px;padding:.1rem .4rem;font-weight:700}.sdt-archive-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:.75rem;display:grid}.sdt-archive-card{background:var(--sdt-surface-elevated);border:1px solid var(--sdt-border-subtle);border-radius:var(--sdt-radius-md);cursor:pointer;transition:all var(--sdt-transition-fast);text-align:left;flex-direction:column;gap:.4rem;padding:.85rem 1rem;display:flex}.sdt-archive-card:hover{border-color:var(--sdt-border-highlight);background:var(--sdt-surface-hover);transform:translateY(-2px)}.sdt-archive-card-header{justify-content:space-between;align-items:center;display:flex}.sdt-archive-num{font-size:.9rem;font-weight:700}.sdt-archive-date{color:var(--sdt-text-dim);font-size:.75rem}.sdt-archive-card:hover .sdt-archive-date{color:var(--sdt-text)}.sdt-archive-status{align-items:center;gap:.4rem;font-size:.8rem;display:flex}.sdt-toast{background:var(--sdt-primary);color:var(--sdt-on-primary);border-radius:var(--sdt-radius-full);z-index:200;padding:.65rem 1.5rem;font-size:.9rem;font-weight:600;animation:.25s sdt-toast-in;position:fixed;bottom:2rem;left:50%;transform:translate(-50%);box-shadow:0 4px 20px #0006}@keyframes sdt-toast-in{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}#sdt-screen-game{box-sizing:border-box;flex-direction:column;gap:1rem;width:100%;max-width:800px;min-height:0;margin:0 auto;padding:1.5rem;scroll-margin-top:12px;display:flex}.sdt-stage-header{justify-content:space-between;align-items:center;width:100%;display:flex}.sdt-progress-container{flex-direction:column;gap:.5rem;display:flex}.sdt-progress-label{color:var(--sdt-text);align-items:center;gap:.75rem;font-size:.85rem;font-weight:700;display:flex}.sdt-sub-challenge-num{color:var(--sdt-primary);border-radius:var(--sdt-radius-sm);background:#10b9811a;padding:.15rem .5rem;font-size:.75rem}.sdt-progress-pills{gap:.5rem;display:flex}.sdt-pill{background:var(--sdt-surface-elevated);border:1px solid var(--sdt-border);width:2rem;height:2rem;color:var(--sdt-text-dim);transition:all var(--sdt-transition-fast);border-radius:50%;justify-content:center;align-items:center;font-size:.8rem;font-weight:700;display:flex}.sdt-pill.active{border-color:var(--sdt-primary);color:var(--sdt-primary);background:#10b98114}.sdt-pill.correct{background:var(--sdt-primary);border-color:var(--sdt-primary);color:var(--sdt-on-primary)}.sdt-pill.wrong{color:#fff;background:#ef4444;border-color:#ef4444}.sdt-stage-metrics{gap:1.25rem;display:flex}.sdt-metric-box{flex-direction:column;align-items:flex-end;display:flex}.sdt-metric-label{color:var(--sdt-text-dim);letter-spacing:.05em;font-size:.75rem;font-weight:700}.sdt-metric-value{font-size:1.25rem;font-weight:800;font-family:var(--sdt-font-mono)}.sdt-session-timer{flex-direction:column;gap:.5rem;width:100%;display:flex}.sdt-timer-bar-wrap{background:var(--sdt-surface-elevated);border-radius:var(--sdt-radius-full);width:100%;height:6px;position:relative;overflow:hidden}.sdt-timer-bar{background:linear-gradient(90deg,#10b981,#059669);height:100%;transition:none}.sdt-timer-bar.urgent{background:linear-gradient(90deg,#ef4444,#dc2626);animation:.5s infinite alternate sdt-timer-pulse}.sdt-timer-bar.over-par{background:linear-gradient(90deg,#f59e0b,#d97706)}@keyframes sdt-timer-pulse{0%{opacity:.85}to{opacity:1}}.sdt-timer-text-overlay{font-family:var(--sdt-font-mono);color:var(--sdt-text-muted);pointer-events:none;align-items:center;font-size:.75rem;font-weight:500;display:flex}.sdt-card-viewport{width:100%;position:relative}.sdt-scenario-card{background:var(--sdt-surface);border:1px solid var(--sdt-border);border-radius:var(--sdt-radius-lg);box-shadow:var(--sdt-shadow-md);box-sizing:border-box;flex-direction:column;gap:1rem;min-height:210px;padding:1.5rem 1.75rem;display:flex;position:relative;overflow:hidden}.sdt-card-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;display:flex}.sdt-card-tags{flex-wrap:wrap;gap:.5rem;display:flex}.sdt-tag{border-radius:var(--sdt-radius-sm);text-transform:uppercase;padding:.2rem .6rem;font-size:.75rem;font-weight:700}.sdt-tag-domain{align-items:center;gap:.35rem;display:inline-flex}.sdt-domain-access{color:#a78bfa;background:#8b5cf626;border:1px solid #8b5cf64d}.sdt-domain-data{color:#fbbf24;background:#f59e0b26;border:1px solid #f59e0b4d}.sdt-domain-deploy{color:#22d3ee;background:#06b6d426;border:1px solid #06b6d44d}.sdt-domain-triage{color:#818cf8;background:#6366f126;border:1px solid #6366f14d}.sdt-tag-lane{color:#a78bfa;background:#8b5cf626;border:1px solid #8b5cf64d}.sdt-tag-tier{color:#60a5fa;background:#3b82f626;border:1px solid #3b82f64d}.sdt-card-requester{color:var(--sdt-text-muted);align-items:center;gap:.4rem;font-size:.8rem;display:flex}.sdt-card-body{flex-direction:column;gap:.5rem;display:flex}.sdt-card-title{margin:0;font-size:1.5rem;font-weight:700;line-height:1.3}.sdt-card-desc{color:var(--sdt-text-muted);margin:0;font-size:.95rem;line-height:1.5}.sdt-card-footer{border-top:1px solid var(--sdt-border-subtle);margin-top:auto;padding-top:.75rem}.sdt-card-hint{color:var(--sdt-text-dim);font-size:.8rem}.sdt-feedback-overlay{background:var(--sdt-surface);border-radius:var(--sdt-radius-lg);box-sizing:border-box;z-index:10;justify-content:center;align-items:flex-start;padding:1.5rem;animation:.15s ease-out sdt-fade-in;display:flex;position:relative}.sdt-scenario-card:has(.sdt-feedback-overlay:not(.hidden)){gap:0;min-height:0;padding:0}.sdt-scenario-card:has(.sdt-feedback-overlay:not(.hidden))>:not(.sdt-feedback-overlay){display:none}.sdt-feedback-overlay.hidden{display:none!important}@keyframes sdt-fade-in{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.sdt-feedback-content{text-align:left;flex-direction:column;align-items:stretch;gap:.75rem;width:100%;max-width:none;margin:auto 0;display:flex}.sdt-feedback-header-row{justify-content:flex-start;align-items:center;gap:.6rem;display:flex}.sdt-feedback-icon{font-size:1.8rem;line-height:1}.sdt-feedback-header-text{text-align:left;flex-direction:column;align-items:flex-start;display:flex}.sdt-feedback-headline{font-size:1.25rem;font-weight:800;line-height:1.2}.sdt-feedback-headline.correct{color:var(--sdt-success)}.sdt-feedback-headline.wrong{color:var(--sdt-danger)}.sdt-feedback-points{color:var(--sdt-accent-amber);font-size:.8rem;font-weight:700}.sdt-feedback-trap-callout{border-radius:var(--sdt-radius-md);box-sizing:border-box;text-align:left;flex-direction:column;gap:.25rem;width:100%;padding:.6rem .85rem;display:flex}.sdt-feedback-trap-callout.anti-pattern{background:#ef44441f;border:1px solid #ef444466}.sdt-feedback-trap-callout.avoided-trap{background:#10b9811a;border:1px solid #10b98159}.sdt-trap-header{align-items:center;gap:.4rem;font-size:.8rem;font-weight:700;display:flex}.sdt-feedback-trap-callout.anti-pattern .sdt-trap-header{color:var(--sdt-danger)}.sdt-feedback-trap-callout.avoided-trap .sdt-trap-header{color:var(--sdt-success)}.sdt-trap-icon{font-size:1rem}.sdt-trap-desc{color:var(--sdt-text);margin:0;font-size:.85rem;line-height:1.35}.sdt-feedback-comparison{grid-template-columns:1fr 1fr;gap:.5rem;width:100%;display:grid}@media (width<=480px){.sdt-feedback-comparison{grid-template-columns:1fr}}@media (width<=360px){.sdt-stage-header{flex-wrap:wrap}.sdt-stage-metrics{justify-content:space-between;width:100%}.sdt-metric-box{flex-direction:row;align-items:center;gap:8px}}.sdt-comparison-item{border-radius:var(--sdt-radius-md);background:var(--sdt-surface-elevated);border:1px solid var(--sdt-border);text-align:left;transition:border-color var(--sdt-transition-fast);flex-direction:column;gap:.15rem;padding:.45rem .75rem;display:flex}.sdt-comparison-item.is-correct{background:#10b98114;border-color:#10b98166}.sdt-comparison-item.is-wrong{background:#ef444414;border-color:#ef444466}.sdt-comparison-correct{background:#10b98114;border-color:#10b98166}.sdt-comparison-label{letter-spacing:.06em;text-transform:uppercase;color:var(--sdt-text-dim);font-size:.7rem;font-weight:700}.sdt-comparison-value{color:var(--sdt-text);overflow-wrap:anywhere;font-size:.85rem;font-weight:700}.sdt-feedback-rule-box{background:var(--sdt-surface-elevated);border:1px solid var(--sdt-border);border-radius:var(--sdt-radius-md);text-align:left;box-sizing:border-box;flex-direction:column;gap:.25rem;width:100%;padding:.6rem .85rem;display:flex}.sdt-rule-badge{text-transform:uppercase;color:var(--sdt-primary);letter-spacing:.05em;font-size:.7rem;font-weight:700}.sdt-feedback-rule-text{color:var(--sdt-text);margin:0;font-size:.9rem;line-height:1.5}.sdt-feedback-link{color:var(--sdt-accent-blue);margin-top:.1rem;font-size:.85rem;text-decoration:underline}.sdt-feedback-actions{justify-content:flex-end;width:100%;margin-top:.25rem;display:flex}.sdt-btn-next{justify-content:center;align-items:center;gap:.5rem;min-width:200px;padding:.55rem 1.25rem;font-size:.95rem;font-weight:700;display:inline-flex}.sdt-kbd-hint{font-family:var(--sdt-font-mono);background:#fff3;border:1px solid #ffffff4d;border-radius:4px;padding:.1rem .35rem;font-size:.75rem;line-height:1}:root[data-theme=light] .sdt-domain-access,:root[data-theme=light] .sdt-tag-lane{color:#6d28d9}:root[data-theme=light] .sdt-domain-data{color:#92400e}:root[data-theme=light] .sdt-domain-deploy{color:#0e7490}:root[data-theme=light] .sdt-domain-triage{color:#4338ca}:root[data-theme=light] .sdt-tag-tier{color:#1d4ed8}@media (width<=480px){#sdt-screen-game{gap:14px;padding:18px 14px}.sdt-stage-header{align-items:flex-start;gap:12px}.sdt-progress-label{flex-wrap:wrap;gap:4px 8px}.sdt-stage-metrics{gap:12px}.sdt-pill{width:26px;height:26px;font-size:12px}.sdt-progress-pills{gap:6px}.sdt-metric-value{font-size:18px}.sdt-metric-label{font-size:10px}.sdt-scenario-card{min-height:0;padding:18px}.sdt-card-title{font-size:21px}.sdt-tag{font-size:10px}.sdt-card-desc{font-size:14px}.sdt-feedback-overlay{padding:18px}.sdt-feedback-comparison{grid-template-columns:1fr 1fr}.sdt-comparison-item{padding:8px}.sdt-feedback-headline{font-size:20px}.sdt-feedback-actions .sdt-btn{width:100%}}.sdt-toolbelt{width:100%;max-width:800px;margin:0 auto}.sdt-toolbelt-grid{grid-template-columns:repeat(4,1fr);gap:.6rem;display:grid}@media (width<=640px){.sdt-toolbelt-grid{grid-template-columns:repeat(2,1fr)}}.sdt-tool-btn{background:var(--sdt-surface);border:1px solid var(--sdt-border);border-radius:var(--sdt-radius-md);cursor:pointer;transition:all var(--sdt-transition-fast);color:var(--sdt-text);box-sizing:border-box;flex-direction:column;justify-content:space-between;align-items:center;gap:.35rem;min-height:78px;padding:.6rem .65rem;display:flex;position:relative}.sdt-tool-btn:hover{background:var(--sdt-surface-hover);border-color:var(--sdt-border-highlight);box-shadow:var(--sdt-shadow-sm);transform:translateY(-2px)}.sdt-tool-btn:focus-visible{outline:2px solid var(--sdt-primary);outline-offset:2px}.sdt-tool-btn:active{transform:translateY(0)}.sdt-tool-btn.selected-correct{transform:scale(1.02);background:#10b98126!important;border-color:#10b981!important;box-shadow:0 0 14px #10b98173!important}.sdt-tool-btn.selected-wrong{background:#ef444426!important;border-color:#ef4444!important;box-shadow:0 0 14px #ef444473!important}.sdt-tool-btn.highlight-correct{animation:1s infinite alternate sdt-pulse-highlight;background:#10b9811a!important;border-color:#10b981!important}@keyframes sdt-pulse-highlight{0%{border-color:#10b98199;box-shadow:0 0 6px #10b9814d}to{border-color:#10b981;box-shadow:0 0 16px #10b981b3}}.sdt-tool-header{justify-content:space-between;align-items:center;width:100%;display:flex}.sdt-tool-shortcuts{gap:.25rem;display:flex}.sdt-key-num,.sdt-key-alpha{font-family:var(--sdt-font-mono);border-radius:3px;padding:.1rem .3rem;font-size:.65rem;font-weight:700;line-height:1}.sdt-key-num{background:var(--sdt-surface-elevated);border:1px solid var(--sdt-border);color:var(--sdt-text-dim)}.sdt-key-alpha{color:var(--sdt-primary);background:#10b98126;border:1px solid #10b9814d}.sdt-tool-icon{font-size:1.35rem;line-height:1}.sdt-tool-name{text-align:center;font-size:.85rem;font-weight:650;line-height:1.2}@media (width<=480px){.sdt-toolbelt-grid{gap:8px}.sdt-tool-btn{min-height:76px;padding:10px}.sdt-tool-name{font-size:13px}}#sdt-screen-results{box-sizing:border-box;width:100%;max-width:800px;margin:0 auto;padding:2rem 1.5rem;scroll-margin-top:12px;position:relative}.sdt-results-backdrop{pointer-events:none;position:absolute;inset:0;overflow:hidden}.sdt-results-glow{filter:blur(40px);background:radial-gradient(circle,#10b98126 0%,#0000 70%);width:450px;height:300px;position:absolute;top:5%;left:50%;transform:translate(-50%)}.sdt-results-container{z-index:1;flex-direction:column;align-items:center;gap:1.5rem;width:100%;display:flex;position:relative}.sdt-results-header{text-align:center;flex-direction:column;align-items:center;gap:.5rem;display:flex}.sdt-grade-badge{width:70px;height:70px;box-shadow:var(--sdt-shadow-md);border-radius:50%;justify-content:center;align-items:center;margin-bottom:.5rem;display:flex}.sdt-grade-badge.grade-s{background:linear-gradient(135deg,#10b981,#047857);box-shadow:0 0 25px #10b98180}.sdt-grade-badge.grade-a{background:linear-gradient(135deg,#3b82f6,#1d4ed8);box-shadow:0 0 20px #3b82f666}.sdt-grade-badge.grade-b{background:linear-gradient(135deg,#f59e0b,#b45309);box-shadow:0 0 20px #f59e0b66}.sdt-grade-badge.grade-review,.sdt-grade-badge.grade-meltdown{background:linear-gradient(135deg,#ef4444,#991b1b);box-shadow:0 0 25px #ef444480}.sdt-grade-letter{color:#fff;font-size:2.2rem;font-weight:900;font-family:var(--sdt-font-mono)}.sdt-results-title{text-wrap:balance;margin:0;font-size:1.8rem;font-weight:800;line-height:1.2}.sdt-results-quote{color:var(--sdt-text-muted);margin:0;font-size:.95rem;font-style:italic}.sdt-results-challenge-info{color:var(--sdt-text-dim);font-size:.8rem;font-family:var(--sdt-font-mono)}.sdt-emojis-container{background:var(--sdt-surface);border:1px solid var(--sdt-border);border-radius:var(--sdt-radius-md);box-sizing:border-box;flex-direction:column;align-items:center;gap:.35rem;max-width:100%;padding:.85rem 1.5rem;display:flex}.sdt-emojis-display{letter-spacing:.35rem;font-size:2rem;line-height:1}.sdt-emojis-caption{color:var(--sdt-text-dim);font-size:.8rem;font-weight:700}.sdt-results-stats-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;width:100%;display:grid}.sdt-rstat-card{background:var(--sdt-surface);border:1px solid var(--sdt-border);border-radius:var(--sdt-radius-md);flex-direction:column;align-items:center;gap:.35rem;padding:1rem;display:flex}.sdt-rstat-label{color:var(--sdt-text-dim);letter-spacing:.05em;font-size:.7rem;font-weight:700}.sdt-rstat-value{font-size:1.35rem;font-weight:800;font-family:var(--sdt-font-mono);color:var(--sdt-text)}.sdt-rstat-value.over-par{color:var(--sdt-danger)}.sdt-rstat-sublabel{color:var(--sdt-success);letter-spacing:.04em;font-size:.65rem;font-weight:600}.sdt-rstat-value.over-par+.sdt-rstat-sublabel{color:var(--sdt-danger)}.sdt-missed-rule-box{border-radius:var(--sdt-radius-md);box-sizing:border-box;background:#f59e0b1a;border:1px solid #f59e0b4d;flex-direction:column;gap:.4rem;width:100%;padding:1rem 1.25rem;display:flex}.sdt-missed-header{color:var(--sdt-accent-amber);align-items:center;gap:.5rem;font-size:.8rem;font-weight:700;display:flex}.sdt-missed-text{color:var(--sdt-text);margin:0;font-size:.85rem;line-height:1.4}.sdt-missed-link{color:var(--sdt-accent-blue);font-size:.75rem;text-decoration:underline}.sdt-results-breakdown{flex-direction:column;gap:.75rem;width:100%;display:flex}.sdt-breakdown-heading{margin:0;font-size:1.1rem;font-weight:700}.sdt-breakdown-list{flex-direction:column;gap:.5rem;display:flex}.sdt-breakdown-item{background:var(--sdt-surface);border:1px solid var(--sdt-border-subtle);border-radius:var(--sdt-radius-md);justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 1rem;display:flex}.sdt-breakdown-item.item-correct{border-left:4px solid #10b981}.sdt-breakdown-item.item-wrong{border-left:4px solid #ef4444}.sdt-item-info{text-align:left;flex-direction:column;gap:.2rem;display:flex}.sdt-item-header{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.sdt-item-title{font-size:.9rem;font-weight:600}.sdt-item-rule{color:var(--sdt-text-dim);font-size:.75rem}.sdt-item-link{color:var(--sdt-accent-blue);margin-top:.2rem;font-size:.75rem;text-decoration:underline;display:inline-block}.sdt-item-link:hover{color:var(--sdt-primary)}.sdt-item-badge{border-radius:var(--sdt-radius-sm);white-space:nowrap;padding:.2rem .5rem;font-size:.8rem;font-weight:700}.sdt-item-badge.correct{color:var(--sdt-success);background:#10b98126}.sdt-item-badge.wrong{color:var(--sdt-danger);background:#ef444426}.sdt-results-actions{flex-wrap:wrap;justify-content:center;gap:.75rem;width:100%;display:flex}@media (width<=480px){.sdt-results-title{font-size:24px}#sdt-screen-results{padding:24px 18px}.sdt-emojis-display{letter-spacing:.2rem;font-size:1.5rem}.sdt-results-stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.sdt-rstat-card{text-align:center;padding:12px 8px}.sdt-rstat-value{font-size:18px}.sdt-breakdown-item{flex-direction:column;align-items:flex-start;gap:8px;padding:14px}.sdt-results-actions .sdt-btn{width:100%}}.sdt-streak-pill{color:var(--sdt-accent-amber);font-family:var(--font-mono,monospace);letter-spacing:.05em;text-transform:uppercase;background:#f59e0b26;border:1px solid #f59e0b59;border-radius:9999px;align-items:center;gap:.35rem;margin-left:.5rem;padding:.25rem .65rem;font-size:.75rem;font-weight:700;display:inline-flex;box-shadow:0 0 12px #f59e0b33}.sdt-streak-pill.hidden{display:none!important}.sdt-stats-kpi-grid{grid-template-columns:repeat(4,1fr);gap:.75rem;margin:1.25rem 0 1.5rem;display:grid}.sdt-kpi-card{background:var(--sdt-surface-elevated);border:1px solid var(--sdt-border);text-align:center;border-radius:.75rem;flex-direction:column;justify-content:center;align-items:center;padding:.85rem .5rem;transition:transform .15s,border-color .15s;display:flex}.sdt-kpi-card:hover{border-color:var(--sdt-border-highlight);transform:translateY(-2px)}.sdt-kpi-icon{margin-bottom:.25rem;font-size:1.25rem}.sdt-kpi-value{font-family:var(--font-mono,monospace);color:var(--sdt-text);letter-spacing:-.02em;font-size:1.4rem;font-weight:800;line-height:1.1}.sdt-kpi-label{color:var(--sdt-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-top:.35rem;font-size:.65rem;font-weight:600}.sdt-tier-distribution-section{background:var(--sdt-surface-elevated);border:1px solid var(--sdt-border);border-radius:.75rem;margin-bottom:1.5rem;padding:1rem 1.25rem}.sdt-tier-distribution-title{color:var(--sdt-text);text-transform:uppercase;letter-spacing:.05em;align-items:center;gap:.4rem;margin:0 0 .85rem;font-size:.8rem;font-weight:700;display:flex}.sdt-tier-rows{flex-direction:column;gap:.65rem;display:flex}.sdt-tier-row{grid-template-columns:80px 1fr 40px;align-items:center;gap:.75rem;display:grid}.sdt-tier-row-label{font-family:var(--font-mono,monospace);color:var(--sdt-text);align-items:center;gap:.35rem;font-size:.75rem;font-weight:700;display:flex}.sdt-tier-bar-track{background:var(--sdt-border);border-radius:9999px;height:12px;position:relative;overflow:hidden}.sdt-tier-bar-fill{border-radius:9999px;min-width:4px;height:100%;transition:width .4s cubic-bezier(.4,0,.2,1)}.sdt-tier-bar-fill.tier-s{background:linear-gradient(90deg,#10b981,#34d399);box-shadow:0 0 8px #10b98166}.sdt-tier-bar-fill.tier-a{background:linear-gradient(90deg,#06b6d4,#38bdf8);box-shadow:0 0 8px #06b6d466}.sdt-tier-bar-fill.tier-b{background:linear-gradient(90deg,#f59e0b,#fbbf24);box-shadow:0 0 8px #f59e0b66}.sdt-tier-bar-fill.tier-review{background:linear-gradient(90deg,#ef4444,#f87171);box-shadow:0 0 8px #ef444466}.sdt-tier-row-count{font-family:var(--font-mono,monospace);color:var(--sdt-text-muted);text-align:right;font-size:.75rem;font-weight:700}.sdt-stats-actions{justify-content:flex-end;gap:.75rem;display:flex}@media (width<=640px){.sdt-stats-kpi-grid{grid-template-columns:repeat(2,1fr)}.sdt-tier-row{grid-template-columns:65px 1fr 30px;gap:.5rem}}.content-panel:has(.sdt-page-wrapper){border-top:none;padding-top:.5rem}.sdt-page-wrapper{box-sizing:border-box;flex-direction:column;gap:1.25rem;width:100%;max-width:1040px;margin:0 auto;padding:.5rem 0 4rem;display:flex}@media (width<=480px){.sdt-guide-title{font-size:24px}}.sdt-page-stage{width:100%}.sdt-page-guide{flex-direction:column;gap:2rem;margin-top:1rem;display:flex}.sdt-guide-hero{text-align:center;flex-direction:column;align-items:center;gap:.75rem;max-width:720px;margin:0 auto;display:flex}.sdt-guide-tag{border-radius:var(--sdt-radius-full);color:var(--sdt-primary);text-transform:uppercase;background:#10b9811a;border:1px solid #10b9814d;align-items:center;gap:.5rem;padding:.25rem .75rem;font-size:.75rem;font-weight:700;display:inline-flex}.sdt-guide-title{color:var(--sdt-text);margin:0;font-size:1.8rem;font-weight:800}.sdt-guide-lead{color:var(--sdt-text-muted);margin:0;font-size:1rem;line-height:1.6}.sdt-features-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;display:grid}.sdt-feature-card{background:var(--sdt-surface);border:1px solid var(--sdt-border-subtle);border-radius:var(--sdt-radius-md);flex-direction:column;gap:.5rem;padding:1.25rem;display:flex}.sdt-feature-icon{font-size:1.5rem}.sdt-feature-card h3{color:var(--sdt-text);margin:0;font-size:1rem;font-weight:700}.sdt-feature-card p{color:var(--sdt-text-muted);margin:0;font-size:.85rem;line-height:1.5}.sdt-feature-card code{background:var(--sdt-surface-elevated);font-family:var(--sdt-font-mono);border-radius:3px;padding:.1rem .3rem}