:root{--orange: #FF7A00;--orange-hover: #E66E00;--bg-page: #F8F5EE;--bg-card: #FFFFFF;--bubble-yellow: #F7E88A;--bubble-yellow-hover: #F2DE72;--ink-dark: #332E21;--ink-muted: #777267;--border-light: 1px solid #E5E0D5;--radius-card: 20px;--shadow-card: 0 8px 24px rgba(0, 0, 0, .04);--shadow-floating: 0 8px 24px rgba(0, 0, 0, .08);font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--ink-dark);background-color:var(--bg-page);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box;margin:0;padding:0}html,body{min-width:320px;min-height:100vh;background-color:var(--bg-page);color:var(--ink-dark)}button,textarea,input{font-family:inherit;color:inherit}button{border:0;cursor:pointer;background:none}button,a{-webkit-tap-highlight-color:transparent}.app-header{width:100%;background:var(--orange);padding:12px 24px;box-shadow:0 2px 8px #ff7a0033}.header-inner{max-width:860px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.brand-logo{font-size:22px;font-weight:900;color:#fff;text-decoration:none;letter-spacing:-.5px}.header-status-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;background:#ffffff40;color:#fff;border-radius:16px;font-size:13px;font-weight:700;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.header-status-badge.is-connected{background:#fff;color:var(--orange)}.app-shell{min-height:calc(100vh - 60px);max-width:860px;margin:0 auto;padding:24px 20px 100px;display:flex;flex-direction:column;gap:24px}.hero-qr-card{background:var(--bg-card);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;display:flex;flex-direction:column;align-items:center}.hero-orange-banner{width:100%;background:var(--orange);padding:16px 20px;display:flex;align-items:center;justify-content:center;gap:12px;color:#fff}.banner-devices-svg{display:flex;align-items:center;justify-content:center;gap:16px}.banner-connection-area{display:flex;align-items:center;gap:8px;min-width:80px;justify-content:center}.banner-conn-line{stroke:#ffffffe6;stroke-width:2.5;stroke-linecap:round}.banner-conn-line.is-waiting{stroke-dasharray:5,5;animation:dashMove .8s linear infinite}.banner-conn-line.is-connected{stroke-dasharray:none;stroke:#fff}@keyframes dashMove{0%{stroke-dashoffset:20}to{stroke-dashoffset:0}}.banner-status-badge{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;font-size:14px;font-weight:900;transition:all .25s ease;flex-shrink:0}.banner-status-badge.is-waiting{border:2px solid rgba(255,255,255,.7);color:#fff;background:#ffffff26;animation:pulseWait 1.5s infinite}.banner-status-badge.is-connected{background:#fff;color:#27ae60;box-shadow:0 2px 10px #00000026;animation:checkPop .35s cubic-bezier(.175,.885,.32,1.275)}@keyframes pulseWait{0%,to{transform:scale(1);opacity:1}50%{transform:scale(.9);opacity:.6}}@keyframes checkPop{0%{transform:scale(.5);opacity:0}70%{transform:scale(1.15)}to{transform:scale(1);opacity:1}}.hero-card-content{padding:24px 20px;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;width:100%}.hero-subtitle{font-size:15px;font-weight:600;color:var(--ink-dark)}.qr-canvas-box{padding:10px;background:#fff;border:var(--border-light);border-radius:12px}.qr-canvas-box canvas{display:block}.room-copy-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:var(--bg-page);border:1px dashed #D5D0C0;border-radius:16px;font-size:12px;font-weight:700;cursor:pointer;transition:all .15s ease}.room-copy-pill:hover{background:#efece0}.history-section,.message-list{display:flex;flex-direction:column;gap:12px}.yellow-speech-bubble{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;background:var(--bubble-yellow);border-radius:16px;box-shadow:0 2px 8px #00000008;transition:transform .15s ease}.yellow-speech-bubble:hover{background:var(--bubble-yellow-hover)}.bubble-left{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.bubble-icon{font-size:18px;flex-shrink:0}.bubble-text{font-size:15px;font-weight:600;line-height:1.5;color:var(--ink-dark);white-space:pre-wrap;word-break:break-word}a.bubble-text{color:var(--ink-dark);font-weight:700;text-decoration:underline;text-underline-offset:3px}.bubble-copy-btn{padding:6px 14px;background:#ffffffa6;border:1px solid rgba(0,0,0,.08);border-radius:12px;font-size:12px;font-weight:800;color:var(--ink-dark);flex-shrink:0;transition:all .15s ease}.bubble-copy-btn:hover{background:#fff}.empty-history-bubble{display:flex;align-items:center;justify-content:center;gap:8px;padding:24px;background:var(--bg-card);border:1px dashed #D8D4C5;border-radius:16px;color:var(--ink-muted);font-size:14px;font-weight:600}.floating-composer-bar{position:fixed;bottom:24px;left:50%;transform:translate(-50%);width:min(820px,calc(100% - 32px));z-index:100;background:#fff;border:var(--border-light);border-radius:30px;box-shadow:var(--shadow-floating);padding:6px 8px 6px 20px;display:flex;align-items:center;gap:12px}.composer-input-field{flex:1;border:0;outline:none;background:transparent;font-size:15px;color:var(--ink-dark);height:40px;line-height:40px}.composer-input-field::placeholder{color:#b2aca0}.composer-actions-group{display:flex;align-items:center;gap:8px}.action-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;font-size:18px;color:var(--ink-dark);transition:background .15s ease}.action-icon-btn:hover{background:var(--bg-page)}.orange-send-circle-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--orange);color:#fff;font-size:18px;font-weight:800;border-radius:50%;box-shadow:0 4px 12px #ff7a004d;transition:all .15s ease}.orange-send-circle-btn:hover:not(:disabled){background:var(--orange-hover);transform:scale(1.05)}.orange-send-circle-btn:disabled{opacity:.35;cursor:not-allowed;transform:none;box-shadow:none}.toast{position:fixed;z-index:200;left:50%;bottom:84px;transform:translate(-50%,10px);padding:10px 22px;background:var(--ink-dark);color:#fff;font-size:13px;font-weight:700;border-radius:20px;box-shadow:0 4px 16px #00000026;opacity:0;pointer-events:none;transition:all .18s ease}.toast.is-visible{opacity:1;transform:translate(-50%)}.toast.is-error{background:#e74c3c}.joined-qr-container{display:flex;flex-direction:column;gap:20px}.mobile-composer-box{background:var(--bg-card);border:var(--border-light);border-radius:20px;padding:20px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:14px}.mobile-textarea{width:100%;min-height:120px;padding:14px;background:#faf8f2;border:1px solid #E8E3D5;border-radius:14px;font-size:15px;outline:none;resize:vertical}.mobile-send-btn{width:100%;padding:12px;background:var(--orange);color:#fff;font-size:18px;font-weight:800;border-radius:14px;box-shadow:0 4px 12px #ff7a004d;transition:background .15s ease}.mobile-send-btn:hover:not(:disabled){background:var(--orange-hover)}.mobile-send-btn:disabled{opacity:.4;cursor:not-allowed}.state-page{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:40px 20px;text-align:center}.state-title{font-size:18px;font-weight:800}.state-desc{font-size:13px;color:var(--ink-muted)}.restart-btn-orange{display:inline-flex;align-items:center;padding:12px 24px;background:var(--orange);color:#fff;font-size:14px;font-weight:800;text-decoration:none;border-radius:20px;transition:background .15s ease}.restart-btn-orange:hover{background:var(--orange-hover)}.loading-dots{font-size:26px;letter-spacing:6px;color:var(--orange);animation:blink 1.2s infinite}@keyframes blink{50%{opacity:.3}}@media(max-width:768px){.floating-composer-bar{width:calc(100% - 24px);bottom:16px;padding:6px 6px 6px 14px}}