:root{font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;color:#0f172a;background:#f8fafc}body{margin:0}main{max-width:960px;margin:0 auto;padding:24px}.card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:20px;box-shadow:0 10px 30px #0000000a}button{cursor:pointer;border:none;border-radius:10px;padding:12px 16px;background:linear-gradient(120deg,#2563eb,#22d3ee);color:#fff;font-weight:600;transition:transform .12s ease,box-shadow .12s ease}button:hover{transform:translateY(-1px);box-shadow:0 8px 20px #2563eb59}input,.input-like{width:100%;padding:12px 14px;border-radius:10px;border:1px solid #cbd5e1;font-size:14px;box-sizing:border-box}.stack{display:flex;gap:12px;flex-wrap:wrap}.tag{padding:4px 8px;border-radius:6px;background:#e2e8f0;color:#334155;font-size:12px}.video-box{width:100%;min-height:400px;background:#0f172a;border-radius:12px;display:grid;place-items:center;color:#fff;position:relative;overflow:hidden}.video-box:fullscreen{width:100vw;height:100vh;min-height:100vh;border-radius:0}.video-box-idle{background:#475569}.video-player-tools{position:absolute;top:14px;right:14px;z-index:3;display:flex;gap:8px}.player-tool-btn{height:36px;padding:0 12px;border-radius:10px;background:#0f172ac2;color:#f8fafc;font-size:13px;font-weight:700;line-height:1;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.player-tool-btn:hover{box-shadow:0 6px 20px #0f172a59}.player-tool-btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.video-overlay-controls{position:absolute;left:50%;bottom:16px;transform:translate(-50%);z-index:2}.video-controls{display:flex;align-items:center;justify-content:center}.host-controls-row{display:flex;align-items:center;gap:12px}.quality-select{appearance:none;border:1px solid #94a3b8;border-radius:10px;padding:0 40px 0 14px;min-width:260px;height:46px;font-size:15px;font-weight:600;color:#0f172a;background:#f8fafc;box-sizing:border-box}.quality-select:disabled{opacity:.7;cursor:not-allowed}.host-action-btn{min-width:260px;height:46px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box}.host-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.host-header-left{display:flex;align-items:center;gap:12px;min-width:0}.host-header h2{margin:0}.host-status{margin:0;white-space:nowrap}.header-nav-btn{width:42px;height:42px;padding:0;border-radius:12px;background:#e2e8f0;color:#0f172a;font-size:22px;line-height:1;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.header-nav-btn:hover{box-shadow:0 6px 16px #0f172a33}.header-secondary-btn{height:42px;padding:0 16px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;flex-shrink:0}.viewer-link-section{margin-bottom:16px}.viewer-link-section p{margin:0 0 8px}.link-row{display:grid;grid-template-columns:1fr auto;gap:12px;width:100%}.link-input{width:100%;flex:1;min-width:0}.copy-btn{margin-left:auto;flex-shrink:0;white-space:nowrap;min-height:46px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center}.stop-btn{background:linear-gradient(120deg,#dc2626,#ef4444)}@media(max-width:640px){.host-header{flex-direction:column;align-items:stretch}.host-header-left{flex-wrap:wrap}.host-status{text-align:right}.host-controls-row{flex-direction:column;align-items:stretch;width:min(92vw,360px)}.host-controls-row button,.quality-select{width:100%;min-width:0}.video-player-tools{top:10px;right:10px;flex-direction:column;align-items:flex-end}}