:root{color-scheme:light dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;font-weight:400;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--color-bg: #f5f7fb;--color-bg-gradient-from: #f7f9fc;--color-bg-gradient-to: #eef3ff;--color-text: #172033;--color-text-secondary: #48536b;--color-text-muted: #5d6983;--color-card-bg: rgba(255, 255, 255, .92);--color-card-border: #d8e0f2;--color-card-shadow: rgba(27, 54, 101, .08);--color-primary: #3558e6;--color-primary-text: #fff;--color-secondary-bg: #e8eeff;--color-secondary-text: #2445c3;--color-accent: #4a63d0;--color-button-ghost-bg: #fff;--color-button-ghost-text: #172033;--color-button-ghost-border: #d8e0f2;--color-pill-bg: #e8eeff;--color-pill-text: #2948c7;--color-input-border: #d8e0f2;--color-input-bg: #fff;--color-success: #2ca56b;--color-success-bg: #ebfff4;--color-danger: #d63031;background:var(--color-bg);color:var(--color-text)}@media(prefers-color-scheme:dark){:root{--color-bg: #0f1419;--color-bg-gradient-from: #0f1419;--color-bg-gradient-to: #1a1f29;--color-text: #e8edf5;--color-text-secondary: #a8b3c8;--color-text-muted: #7d8a9f;--color-card-bg: rgba(25, 30, 38, .95);--color-card-border: #2d3442;--color-card-shadow: rgba(0, 0, 0, .3);--color-primary: #4c6ef5;--color-primary-text: #fff;--color-secondary-bg: #1e2740;--color-secondary-text: #7b9cfc;--color-accent: #6b84e8;--color-button-ghost-bg: #1a1f29;--color-button-ghost-text: #e8edf5;--color-button-ghost-border: #2d3442;--color-pill-bg: #1e2740;--color-pill-text: #7b9cfc;--color-input-border: #2d3442;--color-input-bg: #191e26;--color-success: #3bc97d;--color-success-bg: #0d2a1d;--color-danger: #f54747}}*{box-sizing:border-box}body{margin:0;min-width:320px;background:linear-gradient(180deg,var(--color-bg-gradient-from) 0%,var(--color-bg-gradient-to) 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ease}.button:hover{transform:translateY(-1px)}.button-primary{background:var(--color-primary);color:var(--color-primary-text)}.button-secondary{background:var(--color-secondary-bg);color:var(--color-secondary-text)}.button-ghost{background:var(--color-button-ghost-bg);color:var(--color-button-ghost-text);border:1px solid var(--color-button-ghost-border)}.button:disabled{opacity:.5;cursor:not-allowed;transform:none}.workflow-list,.summary-list{margin:12px 0 0;padding-left:18px;color:var(--color-text-secondary)}.question-grid,.option-grid{display:grid;gap:14px}.option-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));margin-top:20px}.option-card{padding:16px;border-width:2px}.editor-header{margin-bottom:20px}.input-large{display:block;width:100%;font-size:1.5rem;font-weight:700;padding:12px;border:2px solid 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#f5c2c7}@media(max-width:900px){.hero,.layout-grid{grid-template-columns:1fr;display:grid}.hero-panel{min-width:0}}.presentation-fullscreen{position:fixed;top:0;left:0;width:100vw;height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;flex-direction:column;padding:2rem;z-index:1000;overflow:hidden}.presentation-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;font-size:1rem;opacity:.9}.presentation-counter{font-weight:600;background:#0003;padding:.5rem 1rem;border-radius:999px}.presentation-fullscreen-btn{background:#0003;border:none;color:#fff;padding:.5rem .75rem;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.presentation-fullscreen-btn:hover{background:#0000004d;transform:scale(1.05)}.presentation-fullscreen-btn:active{transform:scale(.95)}.presentation-fullscreen-btn 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1.5rem;border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .12s ease}.control-btn:disabled{opacity:.5;cursor:not-allowed}.control-btn-prev{background:#666;color:#fff}.control-btn-reveal{background:#28a745;color:#fff;padding:.75rem 2rem;font-size:1.1rem}.control-btn-next{background:var(--color-primary);color:#fff}.control-btn-fullscreen{background:#6c757d;color:#fff}.control-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.control-actions{margin-top:var(--space-md);text-align:center}.control-btn-end{padding:.5rem 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(max-width:1023px){.layout-single{padding:var(--space-lg)}}.join-qr-container{display:flex;align-items:center;gap:var(--space-lg);background:var(--color-primary);color:#fff;padding:var(--space-lg);border-radius:12px;min-width:fit-content}.qr-code-container{flex-shrink:0;display:flex;align-items:center;justify-content:center;background:#fff;padding:var(--space-sm);border-radius:8px}.qr-code-image{display:block;width:auto;height:auto;max-width:280px;border-radius:4px}.join-code-details{display:flex;flex-direction:column;gap:var(--space-xs);min-width:150px}.join-code-label{font-size:.875rem;opacity:.9;margin-bottom:var(--space-xs)}.join-code-value{font-size:2rem;font-weight:700;letter-spacing:.1em;margin:0;line-height:1}.join-hint{font-size:.875rem;opacity:.85;margin-top:var(--space-xs)}@media(max-width:767px){.join-qr-container{flex-direction:column;gap:var(--space-md);text-align:center}.qr-code-container{width:100%}.qr-code-image{max-width:240px}.join-code-details{width:100%}}.title-slide{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:var(--space-xl)}.slide-title{font-size:3.5rem;font-weight:700;text-align:center;margin:0;line-height:1.2;color:var(--color-text)}.title-slide-join-info{display:flex;align-items:center;gap:var(--space-xl);background:var(--color-primary);color:#fff;padding:var(--space-xl) var(--space-lg);border-radius:16px;width:100%;max-width:800px}.title-slide-qr-container{flex-shrink:0;display:flex;align-items:center;justify-content:center;background:#fff;padding:var(--space-md);border-radius:12px}.title-slide-qr-image{display:block;width:auto;height:auto;max-width:300px;border-radius:4px}.title-slide-code-section{display:flex;flex-direction:column;gap:var(--space-sm);flex:1}.title-slide-label{font-size:.875rem;opacity:.9;text-transform:uppercase;font-weight:600;letter-spacing:.05em}.title-slide-code{font-size:2.5rem;font-weight:700;letter-spacing:.15em;line-height:1}.title-slide-url{font-size:.9rem;opacity:.8;word-break:break-all}.title-slide-disabled{background:var(--color-card-bg);border:2px solid var(--color-card-border);padding:var(--space-xl);border-radius:16px;text-align:center;color:var(--color-text-muted)}.title-slide-hint{font-size:1rem;color:var(--color-text-secondary);font-style:italic;margin:0}.join-code-display{display:flex;align-items:center;gap:var(--space-md);transition:all .2s ease;flex-wrap:wrap}.join-code-toggle{background:var(--color-primary);color:#fff;border:none;padding:var(--space-sm) var(--space-md);border-radius:8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:var(--space-xs);font-weight:600;transition:all .2s ease;white-space:nowrap;flex-shrink:0;z-index:10}.join-code-toggle:hover{transform:scale(1.05);box-shadow:0 2px 8px #00000026}.join-code-label-small{font-size:.7rem;opacity:.85;text-transform:uppercase;letter-spacing:.05em}.join-code-value-small{font-size:1.25rem;font-weight:700;letter-spacing:.1em}.corner-qr-container{background:#fff;padding:var(--space-sm);border-radius:8px;display:none;align-items:center;justify-content:center;box-shadow:0 4px 12px #00000026;flex-shrink:0;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}.corner-qr-container:hover{transform:scale(1.05);box-shadow:0 6px 16px #0003}.join-code-display.expanded .corner-qr-container{display:flex}.corner-qr-image{display:block;width:auto;height:auto;max-width:200px;border-radius:4px}@media(max-width:767px){.slide-title{font-size:2.5rem}.title-slide-join-info{flex-direction:column;gap:var(--space-lg);text-align:center;padding:var(--space-lg)}.title-slide-qr-image{max-width:250px}.title-slide-code{font-size:2rem}.join-code-toggle{padding:var(--space-xs) var(--space-sm);font-size:.9rem}.join-code-label-small{font-size:.6rem}.join-code-value-small{font-size:1rem}.corner-qr-image{max-width:150px}}.presenter-options{max-width:600px;margin:0 auto}.presenter-options h1{font-size:2rem;margin-bottom:var(--space-xs)}.presenter-options .muted{margin-bottom:var(--space-xl)}.presenter-options .card{margin-bottom:var(--space-lg)}.presenter-options .card h2{font-size:1.25rem;margin-bottom:var(--space-md)}.option-label{display:flex;align-items:center;gap:var(--space-sm);cursor:pointer;padding:var(--space-sm) 0}.option-label input[type=checkbox]{width:20px;height:20px;cursor:pointer}.option-label span{font-size:1rem;font-weight:500}.presenter-stats{max-width:700px;margin:0 auto;text-align:center}.presenter-stats h1{font-size:2.5rem;margin-bottom:var(--space-sm)}.presenter-stats>.muted{margin-bottom:var(--space-xl)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-lg);margin-bottom:var(--space-xl)}.stat-card{background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:12px;padding:var(--space-lg)}.stat-value{font-size:3rem;font-weight:700;color:var(--color-primary);margin-bottom:var(--space-xs)}.stat-label{font-size:1rem;color:var(--color-muted);font-weight:500}.end-actions{margin-top:var(--space-xl)}.end-actions .button{margin-bottom:var(--space-md)}.end-actions .muted{font-size:.875rem}.card-error{max-width:500px;margin:0 auto;text-align:center;padding:var(--space-xl)}.card-error h2{color:#dc3545;margin-bottom:var(--space-md)}.card-error p,.breadcrumb{margin-bottom:var(--space-lg)}.breadcrumb-link{color:var(--color-primary);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s ease}.breadcrumb-link:hover{color:var(--color-primary-hover);text-decoration:underline}