:root{--bg-color:#f1f5f9;--surface-color:#fff;--text-primary:#0f172a;--text-secondary:#64748b;--border-color:#e2e8f0;--primary:#3b82f6;--primary-hover:#2563eb;--danger:#ef4444;--danger-hover:#dc2626;--success:#10b981;--warning:#f59e0b;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--radius-md:8px;--radius-lg:16px;--radius-xl:24px;color:var(--text-primary);background:var(--bg-color);-webkit-font-smoothing:antialiased;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body,html,#app{min-height:100vh}button{cursor:pointer;background:0 0;border:none;font-family:inherit}input,select{font-family:inherit}.app-shell{flex-direction:column;gap:24px;max-width:1600px;margin:0 auto;padding:24px;display:flex}.workspace-grid{grid-template-columns:340px 1fr;align-items:start;gap:24px;display:grid}.page-header{justify-content:space-between;align-items:center;padding-bottom:16px;display:flex}.header-brand{align-items:center;gap:12px;display:flex}.logo-icon{background:linear-gradient(135deg, var(--primary), #8b5cf6);border-radius:10px;width:32px;height:32px}.header-brand h1{letter-spacing:-.02em;font-size:1.5rem;font-weight:700}.status-indicator{background:var(--surface-color);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);border-radius:99px;align-items:center;gap:8px;padding:8px 16px;font-size:.875rem;font-weight:500;display:inline-flex}.status-indicator .dot{background:var(--text-secondary);border-radius:50%;width:10px;height:10px}.status-indicator.is-sharing .dot{background:var(--success)}.status-indicator.is-starting .dot{background:var(--warning)}.status-indicator.is-error .dot{background:var(--danger)}.panel-card{background:var(--surface-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--border-color);margin-bottom:24px;overflow:hidden}.panel-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.panel-header h3{font-size:1rem;font-weight:600}.action-card{flex-direction:column;gap:16px;padding:24px 20px;display:flex}.btn-mega{border-radius:var(--radius-md);color:#fff;width:100%;padding:18px;font-size:1.125rem;font-weight:600;transition:all .2s;box-shadow:0 4px 12px #0000001a}.btn-mega:active{transform:scale(.98)}.btn-primary{background:linear-gradient(135deg, var(--primary), #60a5fa)}.btn-primary:hover{box-shadow:0 6px 16px #3b82f666}.btn-danger{background:linear-gradient(135deg, var(--danger), #f87171)}.btn-danger:hover{box-shadow:0 6px 16px #ef444466}.action-sub{gap:12px;display:flex}.action-sub button{flex:1}.share-list{max-height:400px;overflow-y:auto}.share-item{border-bottom:1px solid var(--border-color);text-align:left;justify-content:space-between;align-items:center;width:100%;padding:16px 20px;transition:background .15s;display:flex}.share-item:last-child{border-bottom:none}.share-item:hover{background:#f8fafc}.share-item.active{border-left:4px solid var(--primary);background:#eff6ff;padding-left:16px}.share-item-info{flex-direction:column;gap:4px;display:flex}.user-name{font-size:.95rem;font-weight:600}.path-name{color:var(--text-secondary);font-size:.75rem}.share-item-status{color:var(--text-secondary);background:#f1f5f9;border-radius:6px;padding:4px 8px;font-size:.75rem}.share-item-status.online{color:#166534;background:#dcfce7}.list-message{text-align:center;color:var(--text-secondary);padding:32px 20px;font-size:.875rem}.list-message.error{color:var(--danger)}.settings-header{border-bottom:1px solid var(--border-color);padding:16px 20px;font-weight:600}.accordion-content{padding:0 20px 20px}.static-settings-body{padding-top:20px}.compact-form{flex-direction:column;gap:12px;display:flex}.compact-form input,.compact-form select{border:1px solid var(--border-color);border-radius:6px;outline:none;width:100%;padding:10px 12px;font-size:.875rem;transition:border-color .2s}.compact-form input:focus,.compact-form select:focus{border-color:var(--primary)}.parameter-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.resolution-group,.frame-rate-group{grid-column:span 1}@media (width>=769px){.parameter-grid{grid-template-columns:1.35fr .65fr}}.input-group{flex-direction:column;gap:6px;display:flex}.input-group label{color:var(--text-secondary);font-size:.75rem;font-weight:500}.flex-row{align-items:center;gap:8px;display:flex}.flex-row input{width:100%}.resolution-row span{color:var(--text-secondary);flex:none;font-weight:600}.resolution-row input{flex:1 1 0;min-width:0}.resolution-control-row{grid-template-columns:110px minmax(0,1fr);gap:8px;display:grid}.resolution-result{color:var(--text-secondary);margin-top:6px;font-size:.75rem}.divider{border:none;border-top:1px solid var(--border-color);margin:20px 0}.saved-view{justify-content:space-between;align-items:center;font-size:.875rem;display:flex}.stage-column{flex-direction:column;gap:24px;display:flex}.stage-card{background:var(--surface-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--border-color);flex-direction:column;display:flex;overflow:hidden}.stage-topbar{border-bottom:1px solid var(--border-color);background:#f8fafc;justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.stage-title{align-items:center;gap:12px;display:flex}.stage-title h2{margin:0;font-size:1.125rem;font-weight:600}.badge{background:var(--border-color);border-radius:6px;padding:4px 10px;font-size:.75rem;font-weight:600}.badge-watching{color:#166534;background:#dcfce7}.badge-sharing{color:#1e40af;background:#dbeafe}.player-container{background:#000;width:100%;position:relative}.theater-mode{aspect-ratio:16/9;max-height:70vh}.preview-mode{height:280px}.player-container video{object-fit:contain;width:100%;height:100%;display:block}.player-overlay{color:#fff;background:#0f172acc;justify-content:center;align-items:center;font-size:1rem;font-weight:500;display:flex;position:absolute;inset:0}.player-overlay.dimmed{color:var(--text-secondary);background:#0f172af2}.btn-solid{background:var(--text-primary);color:#fff;border-radius:6px;padding:10px 16px;font-weight:500}.btn-outline{border:1px solid var(--border-color);color:var(--text-primary);border-radius:var(--radius-md);background:var(--surface-color);padding:12px;font-weight:500}.btn-outline:hover:not(:disabled){background:#f8fafc}.btn-outline:disabled{opacity:.5;cursor:not-allowed}.btn-text{color:var(--primary);font-weight:500}.btn-sm{padding:6px 12px;font-size:.875rem}.icon-btn{color:var(--text-secondary);border-radius:6px;padding:4px}.icon-btn:hover{background:var(--border-color);color:var(--text-primary)}.spinner{border:3px solid #fff3;border-top-color:#fff;border-radius:50%;width:24px;height:24px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.boot-card{height:50vh;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}.boot-card .spinner{border-color:var(--border-color);border-top-color:var(--primary)}@media (width<=1024px){.workspace-grid{grid-template-columns:1fr}.sidebar{grid-template-columns:1fr 1fr;gap:24px;display:grid}.settings-card{grid-column:1/-1}}@media (width<=768px){.app-shell{padding:16px}.sidebar{grid-template-columns:1fr}.stage-topbar{flex-direction:column;align-items:flex-start;gap:12px}.theater-mode{max-height:none}}