*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#0f0f0f;--bg-secondary:#1a1a1a;--bg-card:#242424;--accent:red;--accent-hover:#c00;--text-primary:#fff;--text-secondary:#aaa;--border:#333;--success:#00c851;--error:#f44;--warning:#fb3;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-2xl:48px;--radius-sm:4px;--radius-md:8px;--radius-lg:16px;--radius-full:9999px;--text-xs:.75rem;--text-sm:.875rem;--text-md:1rem;--text-lg:1.25rem;--text-xl:1.5rem;--text-2xl:2rem;--text-3xl:2.5rem;--shadow-sm:0 1px 3px #0006;--shadow-md:0 4px 6px #00000080;--shadow-lg:0 10px 25px #0009;--transition:all .2s ease}html{scroll-behavior:smooth;font-size:16px}body{background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}a{color:var(--accent);transition:var(--transition);text-decoration:none}a:hover{color:var(--accent-hover)}button{cursor:pointer;transition:var(--transition);border:none;outline:none;font-family:inherit}input,textarea{border:none;outline:none;font-family:inherit}img{max-width:100%;display:block}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.text-secondary{color:var(--text-secondary)}.text-error{color:var(--error)}.text-success{color:var(--success)}.w-full{width:100%}.btn{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-size:var(--text-sm);transition:var(--transition);font-weight:600}.btn-primary{background:var(--accent);color:var(--text-primary)}.btn-primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--text-secondary);background:var(--bg-secondary)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-card)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.input{width:100%;padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--text-md);transition:var(--transition)}.input:focus{border-color:var(--accent)}.input::placeholder{color:var(--text-secondary)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-lg)}.toast{bottom:var(--spacing-lg);right:var(--spacing-lg);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-size:var(--text-sm);z-index:1000;font-weight:500;animation:.3s slideIn;position:fixed}.toast-error{background:var(--error);color:#fff}.toast-success{background:var(--success);color:#fff}@keyframes slideIn{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@media (width>=480px){:root{--text-3xl:3rem}}@media (width>=768px){.room-layout{grid-template:"player sidebar""controls sidebar"/1fr 300px}.room-player-area{grid-area:player}.room-controls{grid-area:controls}.room-sidebar{grid-area:sidebar}.dashboard-panels{flex-direction:row}}@media (width>=1024px){.room-layout{grid-template-columns:1fr 320px}.room-sidebar{flex-direction:column;height:calc(100vh - 60px);display:flex}}@media (width>=1280px){.room-layout{grid-template-columns:1fr 360px}}@media (width<=480px){.room-layout{grid-template-columns:1fr;grid-template-areas:"player""controls""sidebar"}.card{border-radius:var(--radius-md);padding:var(--spacing-md)}.btn{padding:var(--spacing-sm) var(--spacing-sm);font-size:var(--text-xs)}}.landing{background:var(--bg-primary);flex-direction:column;min-height:100vh;display:flex}.landing-nav{padding:var(--spacing-md) var(--spacing-xl);border-bottom:1px solid var(--border);background:var(--bg-primary);z-index:100;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.landing-logo{align-items:center;gap:var(--spacing-sm);display:flex}.logo-icon{font-size:var(--text-xl)}.logo-text{font-size:var(--text-xl);color:var(--text-primary);font-weight:700}.landing-nav-links{align-items:center;gap:var(--spacing-sm);display:flex}.landing-hero{padding:var(--spacing-2xl) var(--spacing-xl);align-items:center;gap:var(--spacing-2xl);flex-direction:column;flex:1;width:100%;max-width:1100px;margin:0 auto;display:flex}.landing-hero-content{text-align:center;align-items:center;gap:var(--spacing-lg);flex-direction:column;display:flex}.landing-title{color:var(--text-primary);font-size:clamp(2rem,6vw,4rem);font-weight:800;line-height:1.1}.landing-title-accent{color:var(--accent)}.landing-subtitle{font-size:var(--text-lg);color:var(--text-secondary);max-width:520px;line-height:1.7}.landing-cta{gap:var(--spacing-md);flex-wrap:wrap;justify-content:center;display:flex}.btn-lg{padding:var(--spacing-md) var(--spacing-xl);font-size:var(--text-md);border-radius:var(--radius-lg)}.landing-features{gap:var(--spacing-lg);grid-template-columns:repeat(3,1fr);width:100%;display:grid}.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-lg);gap:var(--spacing-sm);transition:var(--transition);flex-direction:column;display:flex}.feature-card:hover{border-color:var(--accent);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.feature-icon{font-size:var(--text-2xl)}.feature-card h3{font-size:var(--text-lg);color:var(--text-primary)}.feature-card p{font-size:var(--text-sm);color:var(--text-secondary);line-height:1.6}@media (width<=768px){.landing-features{grid-template-columns:1fr}.landing-nav{padding:var(--spacing-md)}}@media (width<=480px){.landing-hero{padding:var(--spacing-xl) var(--spacing-md)}.landing-cta{flex-direction:column;width:100%}.btn-lg{text-align:center;width:100%}}.auth-page{min-height:100vh;padding:var(--spacing-md);background:var(--bg-primary);justify-content:center;align-items:center;display:flex}.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--spacing-xl);gap:var(--spacing-md);flex-direction:column;width:100%;max-width:420px;display:flex}.auth-logo{align-items:center;gap:var(--spacing-sm);font-size:var(--text-xl);color:var(--text-primary);justify-content:center;font-weight:700;display:flex}.auth-title{font-size:var(--text-xl);text-align:center;color:var(--text-primary);font-weight:700}.auth-subtitle{text-align:center;color:var(--text-secondary);font-size:var(--text-sm);margin-top:calc(-1 * var(--spacing-sm))}.auth-error{border:1px solid var(--error);color:var(--error);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-size:var(--text-sm);text-align:center;background:#ff44441a}.auth-form{gap:var(--spacing-md);flex-direction:column;display:flex}.form-group{gap:var(--spacing-xs);flex-direction:column;display:flex}.form-group label{font-size:var(--text-sm);color:var(--text-secondary);font-weight:500}.auth-switch{text-align:center;font-size:var(--text-sm);color:var(--text-secondary)}@media (width<=480px){.auth-card{padding:var(--spacing-md);background:0 0;border:none}}.dashboard{background:var(--bg-primary);flex-direction:column;min-height:100vh;display:flex}.dashboard-nav{padding:var(--spacing-md) var(--spacing-xl);border-bottom:1px solid var(--border);background:var(--bg-secondary);justify-content:space-between;align-items:center;display:flex}.dashboard-nav-right{align-items:center;gap:var(--spacing-md);display:flex}.dashboard-username{color:var(--text-secondary);font-size:var(--text-sm)}.dashboard-main{padding:var(--spacing-2xl) var(--spacing-xl);flex:1;width:100%;max-width:900px;margin:0 auto}.dashboard-header{margin-bottom:var(--spacing-2xl)}.dashboard-header h1{font-size:var(--text-2xl);margin-bottom:var(--spacing-xs);font-weight:700}.accent{color:var(--accent)}.dashboard-panels{gap:var(--spacing-lg);flex-direction:column;display:flex}.dashboard-panel{gap:var(--spacing-md);flex-direction:column;display:flex}.panel-header{align-items:center;gap:var(--spacing-md);display:flex}.panel-icon{font-size:var(--text-2xl)}.panel-header h2{font-size:var(--text-lg);font-weight:600}.panel-form{gap:var(--spacing-md);flex-direction:column;display:flex}.input-code{letter-spacing:.3em;text-transform:uppercase;font-weight:700;font-size:var(--text-lg);text-align:center}@media (width>=768px){.dashboard-panels{flex-direction:row}.dashboard-panel{flex:1}}@media (width<=480px){.dashboard-main{padding:var(--spacing-lg) var(--spacing-md)}.dashboard-nav{padding:var(--spacing-md)}}.video-player{background:#000;width:100%;height:100%;position:relative}#yt-player,#yt-player iframe{width:100%;height:100%}.hidden{display:none}.video-placeholder{justify-content:center;align-items:center;gap:var(--spacing-md);color:var(--text-secondary);flex-direction:column;display:flex;position:absolute;inset:0}.video-placeholder span{font-size:4rem}.video-placeholder p{font-size:var(--text-md);color:var(--text-primary)}.player-overlay{z-index:5;background:0 0;position:absolute;inset:0}.search-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--spacing-md);gap:var(--spacing-md);flex-direction:column;display:flex}.search-form{gap:var(--spacing-sm);display:flex}.search-loading{color:var(--text-secondary);font-size:var(--text-sm);text-align:center;padding:var(--spacing-sm)}.search-results{gap:var(--spacing-sm);flex-direction:column;max-height:300px;display:flex;overflow-y:auto}.search-result-item{align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);border:1px solid #0000;display:flex}.search-result-item:hover{background:var(--bg-secondary);border-color:var(--border)}.result-thumbnail{object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0;width:80px;height:60px}.result-info{flex:1;overflow:hidden}.result-title{font-size:var(--text-sm);white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.result-channel{font-size:var(--text-xs);margin-top:2px}.controls{background:var(--bg-secondary);padding:var(--spacing-md);gap:var(--spacing-md);flex-direction:column;display:flex}.controls-main{justify-content:space-between;align-items:center;gap:var(--spacing-md);flex-wrap:wrap;display:flex}.controls-left{align-items:center;gap:var(--spacing-md);display:flex}.controls-right{align-items:center;gap:var(--spacing-sm);flex-wrap:wrap;display:flex}.control-btn{min-width:100px}.controls-time{font-size:var(--text-sm);color:var(--text-secondary);font-variant-numeric:tabular-nums}.controls-readonly{font-size:var(--text-sm);color:var(--text-secondary);font-style:italic}.reaction-buttons{gap:var(--spacing-xs);display:flex}.reaction-btn{font-size:var(--text-lg);padding:var(--spacing-xs);border-radius:var(--radius-md);line-height:1}.reaction-btn:hover{transform:scale(1.2)}.seek-bar-wrapper{align-items:center;gap:var(--spacing-sm);width:100%;display:flex}.seek-bar{appearance:none;background:var(--border);border-radius:var(--radius-full);cursor:pointer;outline:none;flex:1;height:4px}.seek-bar::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:14px;height:14px}.seek-bar::-webkit-slider-runnable-track{background:linear-gradient(to right, var(--accent) 0%, var(--accent) calc(var(--progress,0%)), var(--border) calc(var(--progress,0%)));border-radius:var(--radius-full);height:4px}@media (width<=480px){.controls-main{flex-direction:column;align-items:flex-start}}.participant-list{border-bottom:1px solid var(--border);flex-direction:column;flex-shrink:0;max-height:240px;display:flex}.participant-list-header{padding:var(--spacing-md);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;display:flex}.participant-list-header h3{font-size:var(--text-sm);text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);font-weight:600}.participant-count{background:var(--bg-card);color:var(--text-secondary);font-size:var(--text-xs);border-radius:var(--radius-full);border:1px solid var(--border);padding:2px 8px;font-weight:700}.participants{flex:1;overflow-y:auto}.participant-item{align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);transition:var(--transition);display:flex}.participant-item:hover{background:var(--bg-card)}.participant-avatar{border-radius:var(--radius-full);background:var(--accent);width:36px;height:36px;font-size:var(--text-xs);flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:flex}.participant-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.participant-name{font-size:var(--text-sm);white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.you-badge{color:var(--text-secondary);font-size:var(--text-xs);font-weight:400}.participant-role{font-size:var(--text-xs);color:var(--text-secondary);text-transform:capitalize}.participant-menu-wrapper{flex-shrink:0;position:relative}.participant-dropdown{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);z-index:50;min-width:160px;box-shadow:var(--shadow-lg);position:absolute;top:100%;right:0;overflow:hidden}.participant-dropdown button{width:100%;padding:var(--spacing-sm) var(--spacing-md);color:var(--text-primary);font-size:var(--text-sm);text-align:left;transition:var(--transition);background:0 0}.participant-dropdown button:hover{background:var(--bg-secondary)}.participant-dropdown button.danger{color:var(--error)}.participant-dropdown button.danger:hover{background:#ff44441a}.chatbox{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.chatbox-header{padding:var(--spacing-md);border-bottom:1px solid var(--border);flex-shrink:0}.chatbox-header h3{font-size:var(--text-sm);text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);font-weight:600}.chatbox-messages{padding:var(--spacing-md);gap:var(--spacing-sm);flex-direction:column;flex:1;display:flex;overflow-y:auto}.chatbox-empty{justify-content:center;align-items:center;gap:var(--spacing-xs);color:var(--text-secondary);font-size:var(--text-sm);flex-direction:column;flex:1;display:flex}.chat-message{flex-direction:column;align-self:flex-start;gap:2px;max-width:85%;display:flex}.chat-message-me{align-self:flex-end;align-items:flex-end}.chat-username{font-size:var(--text-xs);color:var(--text-secondary);padding-left:var(--spacing-xs);font-weight:500}.chat-bubble{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--spacing-sm) var(--spacing-md);flex-direction:column;gap:2px;display:flex}.chat-message-me .chat-bubble{background:var(--accent);border-color:var(--accent)}.chat-text{font-size:var(--text-sm);word-break:break-word}.chat-time{font-size:var(--text-xs);color:#ffffff80;align-self:flex-end}.chatbox-input{gap:var(--spacing-sm);padding:var(--spacing-md);border-top:1px solid var(--border);flex-shrink:0;display:flex}.reactions-overlay{pointer-events:none;z-index:10;position:absolute;inset:0;overflow:hidden}.reaction-float{flex-direction:column;align-items:center;gap:4px;animation:3s ease-out forwards floatUp;display:flex;position:absolute;bottom:20px}.reaction-emoji{filter:drop-shadow(0 2px 4px #00000080);font-size:2rem}.reaction-user{font-size:var(--text-xs);color:#fff;border-radius:var(--radius-full);white-space:nowrap;background:#00000080;padding:2px 6px}@keyframes floatUp{0%{opacity:1;transform:translateY(0)}70%{opacity:1}to{opacity:0;transform:translateY(-300px)}}.room{background:var(--bg-primary);flex-direction:column;height:100vh;display:flex;overflow:hidden}.room-header{padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;height:56px;display:flex}.room-header-left{align-items:center;gap:var(--spacing-md);display:flex}.room-header-right{align-items:center;gap:var(--spacing-sm);display:flex}.room-code-badge{align-items:center;gap:var(--spacing-sm);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--text-sm);letter-spacing:.1em;font-weight:700;display:flex}.room-role-badge{font-size:var(--text-xs);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-full);text-transform:capitalize;font-weight:600}.role-host{color:gold;background:#ffd70026}.role-moderator{color:#6495ed;background:#6495ed26}.role-participant{color:var(--text-secondary);background:#aaaaaa26}.btn-sm{padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--text-xs)}.room-layout{flex:1;grid-template-columns:1fr 320px;display:grid;overflow:hidden}.room-main{border-right:1px solid var(--border);flex-direction:column;display:flex;overflow:hidden}.room-player-area{background:#000;flex:1;position:relative;overflow:hidden}.room-controls{border-top:1px solid var(--border);flex-shrink:0}.room-sidebar{flex-direction:column;display:flex;overflow:hidden}@media (width<=768px){.room-layout{grid-template-rows:1fr auto auto;grid-template-columns:1fr;overflow-y:auto}.room-main{border-right:none;border-bottom:1px solid var(--border)}.room-sidebar{max-height:500px}.room{height:auto;min-height:100vh}}@media (width<=480px){.room-header{padding:var(--spacing-sm)}.room-code-badge span{display:none}}#root{flex-direction:column;min-height:100vh;display:flex}