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#00ffff);outline-offset:2px}.theme-option.active{border-color:var(--color-accent, #00cccc);background:var(--color-bg-secondary, #1a1a1a);box-shadow:var(--shadow-glow, 0 0 20px rgba(0, 204, 0, .5))}.theme-preview{width:100%;height:60px;border-radius:var(--radius-sm, 4px);overflow:hidden;border:1px solid var(--color-border, #00cc00)}.theme-preview-colors{display:flex;height:100%}.theme-color-primary,.theme-color-accent,.theme-color-bg{flex:1}.theme-info{display:flex;flex-direction:column;gap:.25rem}.theme-name{font-weight:700;color:var(--color-text, #00cc00);font-size:1rem}.theme-description{font-size:.875rem;color:var(--color-text-muted, #888888)}.theme-check{position:absolute;top:var(--spacing-sm, .5rem);right:var(--spacing-sm, .5rem);color:var(--color-accent, #00cccc);font-size:1.25rem;font-weight:700}.theme-close{width:100%;padding:var(--spacing-md, 1rem);background:var(--color-primary, #00cc00);color:var(--color-text-inverse, #0a0a0a);border:none;border-radius:var(--radius-md, 8px);font-weight:700;cursor:pointer;transition:background var(--transition-base, .25s ease);min-height:44px}.theme-close:hover{background:var(--color-primary-hover, #00ff00)}.theme-close:focus-visible{outline:3px solid var(--color-focus, #00ffff);outline-offset:2px}.theme-preview[data-theme=default] .theme-color-primary{background:#0c0}.theme-preview[data-theme=default] .theme-color-accent{background:#0cc}.theme-preview[data-theme=default] .theme-color-bg{background:#0a0a0a}.theme-preview[data-theme=dark] .theme-color-primary{background:#5865f2}.theme-preview[data-theme=dark] .theme-color-accent{background:#57f287}.theme-preview[data-theme=dark] .theme-color-bg{background:#1e1e1e}.theme-preview[data-theme=light] .theme-color-primary{background:#5865f2}.theme-preview[data-theme=light] .theme-color-accent{background:#57f287}.theme-preview[data-theme=light] .theme-color-bg{background:#fff}.theme-preview[data-theme=high-contrast] .theme-color-primary{background:#0f0}.theme-preview[data-theme=high-contrast] .theme-color-accent{background:#0ff}.theme-preview[data-theme=high-contrast] .theme-color-bg{background:#000}.room-manager{max-width:100%;margin:0;padding:var(--spacing-lg, 1.5rem) var(--spacing-md, 1rem);min-height:100vh;display:flex;flex-direction:column;justify-content:center}.room-manager-header{text-align:center;margin-bottom:var(--spacing-xl, 2rem)}.room-manager-header h1{font-size:2rem;margin-bottom:var(--spacing-sm, .5rem);text-shadow:0 0 10px var(--color-primary, #00cc00);color:var(--color-text, #00cc00)}.room-manager-header p{font-size:1rem;color:var(--color-text-secondary, #00ff88);margin:0}.room-manager-content{display:flex;flex-direction:column;gap:var(--spacing-lg, 1.5rem);max-width:100%}.user-name-section{display:flex;flex-direction:column;gap:var(--spacing-sm, .5rem)}.user-name-section label{font-size:1rem;color:var(--color-text, #00cc00);font-weight:500}.user-name-section input{padding:var(--spacing-md, 1rem);background:var(--color-bg-secondary, rgba(0, 0, 0, .5));border:2px solid var(--color-border, #00cc00);color:var(--color-text, #00cc00);font-family:inherit;font-size:1rem;border-radius:var(--radius-md, 8px);min-height:44px;width:100%;transition:border-color var(--transition-base, .25s ease)}.user-name-section input:focus{outline:none;border-color:var(--color-focus, #00ffff);box-shadow:0 0 0 3px #0ff3}.user-name-section input::placeholder{color:var(--color-text-muted, #888888)}.mode-selector{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-sm, .5rem)}.mode-selector button{padding:var(--spacing-md, 1rem);background:var(--color-bg-tertiary, rgba(0, 255, 0, .1));border:2px solid var(--color-border, #00cc00);color:var(--color-text, #00cc00);cursor:pointer;font-family:inherit;font-size:1rem;min-height:44px;border-radius:var(--radius-md, 8px);transition:all var(--transition-base, .25s ease)}.mode-selector button:hover{background:var(--color-primary-hover, rgba(0, 255, 0, .2));border-color:var(--color-primary-hover, #00ff00)}.mode-selector button:focus-visible{outline:3px solid var(--color-focus, #00ffff);outline-offset:2px}.mode-selector button.active{background:var(--color-primary, rgba(0, 204, 0, .3));border-color:var(--color-primary, #00cc00);font-weight:700}.create-room-section,.join-room-section{display:flex;flex-direction:column;gap:var(--spacing-lg, 1.5rem)}.room-code-settings{display:flex;flex-direction:column;gap:var(--spacing-md, 1rem);padding:var(--spacing-md, 1rem);background:var(--color-bg-secondary, rgba(0, 0, 0, .3));border:1px solid var(--color-border, #00cc00);border-radius:var(--radius-md, 8px)}.room-code-settings label{display:flex;flex-direction:column;gap:var(--spacing-xs, .25rem);color:var(--color-text, #00cc00);font-size:.875rem}.room-code-settings input[type=range]{width:100%;height:8px;background:var(--color-bg-tertiary, #2a2a2a);border-radius:var(--radius-full, 9999px);outline:none;-webkit-appearance:none}.room-code-settings input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;background:var(--color-primary, #00cc00);border-radius:50%;cursor:pointer}.room-code-settings input[type=range]::-moz-range-thumb{width:20px;height:20px;background:var(--color-primary, #00cc00);border-radius:50%;cursor:pointer;border:none}.room-code-settings label:has(input[type=checkbox]){flex-direction:row;align-items:center;gap:var(--spacing-sm, .5rem);cursor:pointer}.room-code-settings input[type=checkbox]{width:20px;height:20px;min-width:20px;min-height:20px;cursor:pointer;accent-color:var(--color-primary, #00cc00)}.room-options{display:flex;flex-direction:column;gap:var(--spacing-md, 1rem)}.room-options label{display:flex;align-items:center;gap:var(--spacing-sm, .5rem);cursor:pointer;color:var(--color-text, #00cc00);font-size:.875rem}.room-options input[type=checkbox]{width:20px;height:20px;min-width:20px;min-height:20px;cursor:pointer;accent-color:var(--color-primary, #00cc00)}.create-button,.join-button{padding:var(--spacing-md, 1rem) var(--spacing-lg, 1.5rem);background:var(--color-primary, rgba(0, 204, 0, .2));border:2px solid var(--color-primary, #00cc00);color:var(--color-text, #00cc00);cursor:pointer;font-family:inherit;font-size:1.125rem;font-weight:700;min-height:44px;border-radius:var(--radius-md, 8px);transition:all var(--transition-base, .25s ease)}.create-button:hover,.join-button:hover{background:var(--color-primary-hover, rgba(0, 255, 0, .3));border-color:var(--color-primary-hover, #00ff00);transform:translateY(-2px);box-shadow:var(--shadow-md, 0 4px 8px rgba(0, 204, 0, .2))}.create-button:focus-visible,.join-button:focus-visible{outline:3px solid var(--color-focus, #00ffff);outline-offset:2px}.create-button:active,.join-button:active{transform:translateY(0)}.join-room-section input{padding:var(--spacing-md, 1rem);background:var(--color-bg-secondary, rgba(0, 0, 0, .5));border:2px solid var(--color-border, #00cc00);color:var(--color-text, #00cc00);font-family:inherit;font-size:1rem;border-radius:var(--radius-md, 8px);min-height:44px;width:100%;transition:border-color var(--transition-base, .25s ease)}.join-room-section input:focus{outline:none;border-color:var(--color-focus, #00ffff);box-shadow:0 0 0 3px #0ff3}.join-room-section input::placeholder{color:var(--color-text-muted, #888888)}@media (min-width: 768px){.room-manager{max-width:600px;margin:var(--spacing-xl, 2rem) auto;padding:var(--spacing-xl, 2rem);border:2px solid var(--color-border, #00cc00);border-radius:var(--radius-lg, 12px);background:var(--color-bg-secondary, rgba(0, 0, 0, .5));min-height:auto}.room-manager-header h1{font-size:2.5rem}.room-code-settings{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-md, 1rem)}.room-options{display:grid;grid-template-columns:1fr 1fr}}@media (min-width: 1024px){.room-manager{max-width:700px;padding:var(--spacing-xl, 2rem) var(--spacing-xl, 3rem)}.mode-selector{gap:var(--spacing-md, 1rem)}.create-room-section{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-xl, 2rem)}}@media (prefers-reduced-motion: reduce){.create-button:hover,.join-button:hover{transform:none}}.video-call{width:100%;height:100%;display:flex;flex-direction:column;gap:var(--spacing-md, 1rem)}.video-grid{display:flex;flex-direction:column;gap:var(--spacing-md, 1rem);padding:var(--spacing-md, 1rem);flex:1;overflow-y:auto;min-height:0}.local-video,.remote-video{position:relative;background:var(--color-bg-tertiary, #000);border:2px solid var(--color-border, #00cc00);border-radius:var(--radius-md, 8px);overflow:hidden;width:100%;min-height:200px;aspect-ratio:16 / 9;transition:all var(--transition-base, .25s ease)}.local-video.active-speaker,.remote-video.active-speaker{border-color:var(--color-accent, #00cccc);border-width:3px;box-shadow:var(--shadow-glow, 0 0 20px rgba(0, 204, 0, .5));z-index:10}.local-video video,.remote-video video{width:100%;height:100%;object-fit:cover;display:block}.video-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(to top,var(--color-bg-overlay, rgba(0, 0, 0, .75)),transparent);padding:var(--spacing-sm, .5rem) var(--spacing-md, 1rem);display:flex;align-items:center;gap:var(--spacing-xs, .25rem);z-index:5;min-height:40px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.user-name{color:var(--color-text, #00cc00);font-weight:700;font-size:.875rem;flex:1;min-width:0;text-shadow:0 1px 2px rgba(0,0,0,.8);margin-right:var(--spacing-xs, .25rem)}.indicator-group{display:flex;align-items:center;gap:var(--spacing-xs, .25rem);flex-shrink:0}.muted-indicator,.video-off-indicator,.speaking-indicator{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;flex-shrink:0;background:#0009;border-radius:50%;padding:4px;box-shadow:0 2px 4px #00000080}.indicator-icon{width:100%;height:100%;display:block}.muted-indicator{color:#fff!important;background:#ed4245e6!important;border:2px solid var(--color-error, #ff4444)!important}.muted-indicator .indicator-icon{color:#fff!important;filter:drop-shadow(0 0 3px rgba(255,255,255,.8))}.video-off-indicator{color:#fff!important;background:#000000e6!important;border:2px solid var(--color-text-muted, #888888)!important}.video-off-indicator .indicator-icon{color:#fff!important;filter:drop-shadow(0 0 3px rgba(255,255,255,.8))}.speaking-indicator{color:var(--color-accent, #00cccc);background:#57f28733;border:1px solid var(--color-accent, #00cccc);animation:pulse 1s infinite}.speaking-indicator .indicator-icon{filter:drop-shadow(0 0 3px var(--color-accent, #00cccc))}.video-controls{display:flex;justify-content:center;flex-wrap:wrap;gap:var(--spacing-sm, .5rem);padding:var(--spacing-md, 1rem);border-top:2px solid var(--color-border, #00cc00);background:var(--color-bg-secondary, rgba(0, 0, 0, .5));position:sticky;bottom:0;z-index:50}.video-controls button{padding:var(--spacing-md, 1rem);background:var(--color-bg-tertiary, rgba(0, 255, 0, .1));border:2px solid var(--color-border, #00cc00);color:var(--color-text, #00cc00);cursor:pointer;font-family:inherit;font-size:1rem;min-width:44px;min-height:44px;border-radius:var(--radius-md, 8px);transition:all var(--transition-base, .25s ease);display:flex;align-items:center;justify-content:center;gap:var(--spacing-xs, .25rem)}.video-controls .icon{width:24px;height:24px;display:block;flex-shrink:0}.video-controls button.muted .icon,.video-controls button.video-off .icon{color:#fff!important;opacity:1;filter:drop-shadow(0 1px 2px rgba(0,0,0,.8))}.video-controls button.active .icon{color:var(--color-primary, #00ff00);opacity:1}.video-controls button:hover{background:var(--color-primary-hover, rgba(0, 255, 0, .2));border-color:var(--color-primary-hover, #00ff00);transform:translateY(-2px)}.video-controls button:focus-visible{outline:3px solid var(--color-focus, #00ffff);outline-offset:2px}.video-controls button.muted{background:var(--color-error, rgba(255, 68, 68, .9))!important;border-color:var(--color-error, #ff4444)!important;color:#fff!important}.video-controls button.muted .icon{color:#fff!important}.video-controls button.video-off{background:var(--color-error, rgba(255, 68, 68, .9))!important;border-color:var(--color-error, #ff4444)!important;color:#fff!important}.video-controls button.video-off .icon{color:#fff!important}@media (min-width: 768px){.video-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-md, 1rem)}.local-video,.remote-video{min-height:225px;min-width:300px}.local-video.active-speaker,.remote-video.active-speaker{grid-column:span 2;min-height:300px}.video-controls{position:relative;border-top:none;border-top:2px solid var(--color-border, #00cc00)}}@media (min-width: 1024px){.video-grid{grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:var(--spacing-lg, 1.5rem);padding:var(--spacing-lg, 1.5rem)}.video-grid:has(.local-video:only-child),.video-grid:has(.remote-video:only-child){grid-template-columns:1fr;max-width:1200px;margin:0 auto}.local-video,.remote-video{min-height:300px;min-width:400px;max-width:100%}.local-video.active-speaker,.remote-video.active-speaker{grid-column:span 2;min-height:500px;max-width:70%}.video-grid:has(.local-video:nth-child(2):last-child),.video-grid:has(.remote-video:nth-child(2):last-child){grid-template-columns:repeat(2,1fr)}.video-grid:has(.local-video:nth-child(4):last-child),.video-grid:has(.remote-video:nth-child(4):last-child){grid-template-columns:repeat(2,1fr)}.video-grid:has(.local-video:nth-child(5):last-child),.video-grid:has(.local-video:nth-child(6):last-child),.video-grid:has(.local-video:nth-child(7):last-child),.video-grid:has(.local-video:nth-child(8):last-child),.video-grid:has(.local-video:nth-child(9):last-child){grid-template-columns:repeat(3,1fr)}.video-controls{flex-wrap:nowrap;gap:var(--spacing-md, 1rem)}.video-controls button{flex:1;max-width:200px}}@media (min-width: 1024px){.video-grid.filmstrip{grid-template-columns:70% 1fr;grid-template-rows:auto}.video-grid.filmstrip .local-video.active-speaker,.video-grid.filmstrip .remote-video.active-speaker{grid-column:1;grid-row:1;min-height:500px;max-width:100%}.video-grid.filmstrip .remote-video:not(.active-speaker){width:120px;height:90px;min-width:120px;min-height:90px;grid-column:2}}.local-video video,.remote-video video{aria-label:attr(data-user-name)}@media (prefers-reduced-motion: reduce){.local-video,.remote-video{transition:none}.speaking-indicator{animation:none}.video-controls button:hover{transform:none}}.chat-panel{display:flex;flex-direction:column;height:100%;background:var(--color-bg-secondary, rgba(0, 0, 0, .5))}.chat-header{padding:var(--spacing-md, 1rem);border-bottom:2px solid var(--color-border, #00cc00);background:var(--color-bg-tertiary, rgba(0, 0, 0, .3));flex-shrink:0}.channel-selector{display:flex;gap:var(--spacing-xs, .25rem);margin-bottom:var(--spacing-sm, .5rem)}.channel-selector button{flex:1;padding:var(--spacing-sm, .5rem) var(--spacing-md, 1rem);background:var(--color-bg-tertiary, rgba(0, 255, 0, .1));border:2px solid var(--color-border, #00cc00);color:var(--color-text, #00cc00);cursor:pointer;font-family:inherit;font-size:.875rem;min-height:44px;border-radius:var(--radius-sm, 4px);transition:all var(--transition-base, .25s ease)}.channel-selector button:hover{background:var(--color-primary-hover, rgba(0, 255, 0, .2))}.channel-selector button:focus-visible{outline:3px solid var(--color-focus, #00ffff);outline-offset:2px}.channel-selector button.active{background:var(--color-primary, rgba(0, 204, 0, .3));border-color:var(--color-primary, #00cc00);font-weight:700}.dm-info{margin-top:var(--spacing-sm, .5rem);font-size:.875rem;color:var(--color-accent, #00cccc);padding:var(--spacing-xs, .25rem)}.chat-messages{flex:1;overflow-y:auto;padding:var(--spacing-md, 1rem);display:flex;flex-direction:column;gap:var(--spacing-md, 1rem);min-height:0;scroll-behavior:smooth}.chat-message{padding:var(--spacing-md, 1rem);background:var(--color-bg-tertiary, rgba(0, 255, 0, .05));border-left:3px solid var(--color-border, #00cc00);border-radius:var(--radius-sm, 4px);display:flex;flex-direction:column;gap:var(--spacing-xs, .25rem)}.chat-message.own{background:var(--color-bg-tertiary, rgba(0, 255, 0, .1));border-left-color:var(--color-accent, #00cccc);align-self:flex-end;max-width:85%}.message-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xs, .25rem);flex-wrap:wrap;gap:var(--spacing-xs, .25rem)}.sender-name{font-weight:700;color:var(--color-accent, #00cccc);font-size:.875rem}.message-time{font-size:.75rem;color:var(--color-text-muted, #888888)}.message-text{color:var(--color-text, #00cc00);font-size:.875rem;line-height:1.5;word-wrap:break-word}.dm-button{margin-top:var(--spacing-xs, .25rem);padding:var(--spacing-xs, .25rem) var(--spacing-sm, .5rem);background:var(--color-accent, rgba(0, 255, 255, .1));border:1px solid var(--color-accent, #00ffff);color:var(--color-accent, #00ffff);cursor:pointer;font-family:inherit;font-size:.75rem;border-radius:var(--radius-sm, 4px);min-height:32px;transition:all var(--transition-base, .25s ease)}.dm-button:hover{background:var(--color-accent-hover, rgba(0, 255, 255, .2))}.dm-button:focus-visible{outline:2px solid var(--color-focus, #00ffff);outline-offset:2px}.chat-input{padding:var(--spacing-md, 1rem);border-top:2px solid var(--color-border, #00cc00);display:flex;flex-direction:column;gap:var(--spacing-sm, .5rem);background:var(--color-bg-secondary, rgba(0, 0, 0, .5));flex-shrink:0}.chat-input textarea{flex:1;padding:var(--spacing-sm, .5rem);background:var(--color-bg-tertiary, rgba(0, 0, 0, .5));border:2px solid var(--color-border, #00cc00);color:var(--color-text, #00cc00);font-family:inherit;font-size:.875rem;resize:none;border-radius:var(--radius-sm, 4px);min-height:60px;max-height:120px;transition:border-color var(--transition-base, .25s ease)}.chat-input textarea:focus{outline:none;border-color:var(--color-focus, #00ffff);box-shadow:0 0 0 3px #0ff3}.chat-input textarea::placeholder{color:var(--color-text-muted, #888888)}.chat-input button{padding:var(--spacing-sm, .5rem) var(--spacing-md, 1rem);background:var(--color-primary, rgba(0, 204, 0, .2));border:2px solid var(--color-primary, #00cc00);color:var(--color-text, #00cc00);cursor:pointer;font-family:inherit;font-size:.875rem;min-height:44px;border-radius:var(--radius-sm, 4px);transition:all var(--transition-base, .25s ease)}.chat-input button:hover{background:var(--color-primary-hover, rgba(0, 255, 0, .3));border-color:var(--color-primary-hover, #00ff00)}.chat-input button:focus-visible{outline:3px solid var(--color-focus, #00ffff);outline-offset:2px}@media (min-width: 768px){.chat-input{flex-direction:row;align-items:flex-end}.chat-input textarea{min-height:44px;max-height:100px}.chat-message.own{max-width:70%}}@media (min-width: 1024px){.chat-messages{padding:var(--spacing-lg, 1.5rem)}.chat-message{padding:var(--spacing-md, 1rem) var(--spacing-lg, 1.5rem)}.message-text{font-size:1rem}}@media (prefers-reduced-motion: reduce){.chat-messages{scroll-behavior:auto}}.file-sharing-panel{display:flex;flex-direction:column;height:100%}.file-sharing-header{padding:1rem;border-bottom:1px solid #00ff00;display:flex;justify-content:space-between;align-items:center}.file-sharing-header button{padding:.5rem 1rem;background:#0f03;border:1px solid #00ff00;color:#0f0;cursor:pointer;font-family:inherit}.file-list{flex:1;overflow-y:auto;padding:1rem}.file-item{padding:1rem;margin-bottom:.5rem;background:#00ff000d;border:1px solid #00ff00}.file-info{display:flex;justify-content:space-between;margin-bottom:.5rem}.file-name{font-weight:700;color:#0f0}.file-size{color:#888;font-size:.9rem}.transfer-progress{display:flex;align-items:center;gap:.5rem;margin-top:.5rem}.progress-bar{flex:1;height:4px;background:#0f03;border-radius:2px}.progress-bar>div{height:100%;background:#0f0;border-radius:2px}.whiteboard-panel{display:flex;flex-direction:column;height:100%}.whiteboard-toolbar{padding:1rem;border-bottom:1px solid #00ff00;display:flex;flex-wrap:wrap;gap:1rem;align-items:center}.tool-group{display:flex;gap:.5rem;align-items:center}.tool-group button{padding:.5rem 1rem;background:#00ff001a;border:1px solid #00ff00;color:#0f0;cursor:pointer;font-family:inherit}.tool-group button.active{background:#00ff004d}.tool-group 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