:root{--font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--bg-gradient:linear-gradient(135deg, #f8fafc 0%, #eef2f6 50%, #e2e8f0 100%);--panel-bg:#ffffff73;--panel-border:#fff9;--panel-shadow:0 20px 40px -10px #0f172a14;--primary:#4f46e5;--primary-hover:#4338ca;--primary-glow:#4f46e526;--success:#059669;--success-glow:#0596691a;--danger:#dc2626;--warning:#d97706;--text-main:#0f172a;--text-muted:#475569;--text-dark:#fff;--border-radius-lg:24px;--border-radius-md:16px;--border-radius-sm:8px;--transition-smooth:all .3s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background:var(--bg-gradient);color:var(--text-main);-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;display:flex;overflow-x:hidden}#root{flex-direction:column;width:100%;min-height:100vh;display:flex}.glass-panel{background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--panel-border);box-shadow:var(--panel-shadow);border-radius:var(--border-radius-lg)}.btn{font-family:var(--font-family);border-radius:var(--border-radius-md);cursor:pointer;transition:var(--transition-smooth);border:none;justify-content:center;align-items:center;gap:8px;padding:14px 28px;font-size:1rem;font-weight:600;display:inline-flex}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px var(--primary-glow)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 20px #6366f180}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-danger{color:#fca5a5;background:#ef444433;border:1px solid #ef444466}.btn-danger:hover{background:var(--danger);color:#fff;transform:translateY(-2px)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes 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#ffffff1a;justify-content:center;align-items:center;max-width:100%;max-height:80%;display:flex;position:relative;overflow:hidden;box-shadow:0 25px 50px -12px #000c}.slide-image-large{object-fit:contain;max-width:100%;max-height:70vh;display:block}.slide-badge{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;background:#000000bf;border:1px solid #ffffff26;border-radius:99px;padding:6px 14px;font-size:.875rem;font-weight:600;position:absolute;top:16px;left:16px}.control-bar{gap:16px;width:100%;max-width:600px;margin-top:24px;display:flex}.control-btn-nav{flex:1;padding:18px;font-size:1.125rem}.thumbnails-sidebar{background:#ffffff73;border-left:1px solid #0f172a14;grid-template-columns:repeat(2,1fr);grid-auto-rows:min-content;align-content:start;gap:16px;width:380px;padding:20px;display:grid;overflow-y:auto}.sidebar-title{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);grid-column:span 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#00000080;font-size:1.15rem;font-weight:700}.thumb-hover-action{-webkit-backdrop-filter:blur(2px);color:#fff;opacity:0;text-align:center;pointer-events:none;background:#0f172ab3;justify-content:center;align-items:center;padding:10px;font-size:.8rem;font-weight:600;transition:opacity .25s cubic-bezier(.4,0,.2,1);display:flex;position:absolute;inset:0}.thumb-card:hover .thumb-hover-action{opacity:1}.progress-container{background:#ffffff0d;width:100%;height:6px;position:relative}.progress-bar-fill{background:linear-gradient(90deg, var(--primary) 0%, var(--success) 100%);height:100%;transition:width .3s cubic-bezier(.4,0,.2,1)}.display-container{background:#000;justify-content:center;align-items:center;width:100vw;height:100vh;margin:0;padding:0;display:flex;position:fixed;top:0;left:0;overflow:hidden}.display-image{object-fit:contain;border:none;width:auto;max-width:100vw;height:auto;max-height:100vh}.display-info{color:#ffffff80;opacity:0;background:#0009;border-radius:6px;padding:6px 12px;font-size:.875rem;transition:opacity .3s;position:absolute;bottom:20px}.display-container:hover .display-info{opacity:1}@media (width<=1024px){.presenter-main{grid-template-rows:1fr 140px;grid-template-columns:1fr}.thumbnails-sidebar{border-left:none;border-top:1px solid var(--panel-border);flex-direction:row;height:140px;padding:12px;overflow:auto hidden}.thumb-card{aspect-ratio:auto;width:160px;height:100%}}.home-bg-wrapper{background:#f1f5f9;justify-content:center;align-items:center;width:100%;min-height:100vh;display:flex;position:relative;overflow:hidden}.orbs-container{z-index:1;position:absolute;inset:0;overflow:hidden}.orb{filter:blur(120px);opacity:.35;mix-blend-mode:multiply;pointer-events:none;border-radius:50%;position:absolute}.orb-1{background:radial-gradient(circle,#6366f199 0%,#a855f700 70%);width:500px;height:500px;animation:20s ease-in-out infinite alternate floatOrb1;top:-100px;left:-100px}.orb-2{background:radial-gradient(circle,#ec489973 0%,#f43f5e00 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#fff9 #fffc;border-radius:28px;padding:48px 40px;position:relative;box-shadow:0 15px 35px #1f26870d,inset 0 1px 1px #ffffff80}.liquid-glass-card:hover{border-color:#fffc;box-shadow:0 20px 45px #1f268714,inset 0 1px 2px #fff9}.home-logo{filter:drop-shadow(0 4px 10px #4f46e533);margin-bottom:24px;font-size:3.5rem;animation:3s ease-in-out infinite logoPulse;display:inline-block}@keyframes logoPulse{0%,to{filter:drop-shadow(0 4px 10px #4f46e533);transform:scale(1)translateY(0)}50%{filter:drop-shadow(0 6px 15px #a855f74d);transform:scale(1.06)translateY(-4px)}}.home-title{background:linear-gradient(135deg,#1e1b4b 30%,#4f46e5 100%);-webkit-text-fill-color:transparent;letter-spacing:-.03em;-webkit-background-clip:text;margin-bottom:12px;font-size:2.25rem;font-weight:800}.home-desc{color:#475569;margin-bottom:36px;font-size:1rem;line-height:1.6}.code-action-box{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#ffffff59;border:1px solid #0f172a0a;border-radius:20px;margin-bottom:24px;padding:24px 20px;box-shadow:inset 0 1px 2px #ffffff80}.input-label{text-transform:uppercase;letter-spacing:.1em;color:#4f46e5;text-align:left;margin-bottom:12px;font-size:.85rem;font-weight:600;display:block}.session-input-wrapper{margin-bottom:20px;position:relative}.session-input{color:#0f172a;text-align:center;width:100%;transition:var(--transition-smooth);background:#fffc;border:1px solid #4f46e526;border-radius:14px;outline:none;padding:16px 20px;font-size:1.15rem;font-weight:600}.session-input:focus{background:#fff;border-color:#4f46e5cc;box-shadow:0 0 12px #4f46e526}.button-group-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.btn-glass-action{color:#1e1b4b;cursor:pointer;transition:var(--transition-smooth);background:#ffffffb3;border:1px solid #0f172a14;border-radius:12px;padding:12px 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