@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";.landing{background:var(--bg-primary);flex-direction:column;min-height:100dvh;display:flex;overflow-x:hidden}.hero{text-align:center;flex-direction:column;align-items:center;padding:80px 24px 60px;display:flex;position:relative}.hero:before{content:"";pointer-events:none;background:radial-gradient(60% 50% at 50% 20%,#7c5bf026,#0000);position:absolute;inset:0}.hero-badge{text-transform:uppercase;letter-spacing:1.5px;color:var(--accent);background:var(--accent-dim);border-radius:20px;margin-bottom:24px;padding:4px 14px;font-size:11px;font-weight:600;position:relative}.hero-title{background:linear-gradient(135deg,#7c5bf0,#c084fc,#e0b3ff);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:16px;font-size:clamp(40px,8vw,64px);font-weight:700;line-height:1.1;position:relative}.hero-icon-img{vertical-align:-.1em;filter:drop-shadow(0 2px 8px #7c5bf066);width:auto;height:1em;display:inline-block}.hero-tagline{color:var(--text-primary);margin-bottom:12px;font-size:clamp(16px,3vw,20px);font-weight:500;position:relative}.hero-description{color:var(--text-secondary);max-width:420px;margin-bottom:32px;font-size:14px;line-height:1.7;position:relative}.hero-actions{gap:12px;display:flex;position:relative}.cta-btn{font-size:14px;font-weight:600;font-family:var(--font);cursor:pointer;border-radius:28px;align-items:center;padding:12px 28px;text-decoration:none;transition:transform .15s,box-shadow .2s;display:inline-flex}.cta-btn:hover{transform:translateY(-2px)}.cta-btn:active{transform:scale(.97)}.cta-primary{background:linear-gradient(135deg, var(--accent), #9371ff);color:#fff;box-shadow:0 4px 20px #7c5bf059}.cta-primary:hover{box-shadow:0 6px 28px #7c5bf080}.cta-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.cta-secondary:hover{border-color:var(--accent);background:var(--accent-dim)}.section-title{text-align:center;background:linear-gradient(135deg, var(--text-primary), var(--text-secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:32px;font-size:24px;font-weight:700}.features{width:100%;max-width:900px;margin:0 auto;padding:60px 24px}.feature-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;transition:border-color .2s,transform .2s}.feature-card:hover{border-color:var(--accent);transform:translateY(-4px)}.feature-icon{margin-bottom:12px;font-size:28px}.feature-card h3{color:var(--text-primary);margin-bottom:8px;font-size:15px;font-weight:600}.feature-card p{color:var(--text-secondary);font-size:13px;line-height:1.6}.architecture{width:100%;max-width:700px;margin:0 auto;padding:40px 24px 60px}.arch-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;display:grid}.arch-item{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:12px;padding:12px 16px;transition:border-color .2s;display:flex}.arch-item:hover{border-color:var(--accent)}.arch-label{text-transform:uppercase;letter-spacing:.5px;color:var(--accent);min-width:64px;font-size:11px;font-weight:600}.arch-tech{color:var(--text-secondary);font-size:13px}.landing-footer{text-align:center;color:var(--text-secondary);border-top:1px solid var(--border);margin-top:auto;padding:24px;font-size:13px}.landing-footer a{color:var(--accent);font-weight:500;text-decoration:none}.landing-footer a:hover{text-decoration:underline}@media (width<=600px){.hero{padding:60px 20px 40px}.hero-actions{flex-direction:column;width:100%;max-width:280px}.cta-btn{justify-content:center}.features,.architecture{padding-left:16px;padding-right:16px}.feature-grid{grid-template-columns:1fr}}:root{--radius:12px;--radius-sm:8px;--shadow:0 4px 20px #0000004d;--font:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--bg-primary:#0f0f1a;--bg-secondary:#1a1a2e;--bg-card:#252540;--bg-input:#2a2a4a;--bg-stamp-event:#7c5bf014;--text-primary:#e8e8f0;--text-secondary:#b0b0cc;--accent:#7c5bf0;--accent-hover:#9371ff;--accent-dim:#7c5bf026;--border:#363655;--error:#ff5757;--success:#4caf50;--stamp-ok:#4caf50;--stamp-ng:#ff5757;--stamp-progress:#ffa726;--stamp-blocked:#ff5757}[data-theme=dark]{--bg-primary:#0f0f1a;--bg-secondary:#1a1a2e;--bg-card:#252540;--bg-input:#2a2a4a;--bg-stamp-event:#7c5bf014;--text-primary:#e8e8f0;--text-secondary:#b0b0cc;--accent:#7c5bf0;--accent-hover:#9371ff;--accent-dim:#7c5bf026;--border:#363655;--error:#ff5757;--success:#4caf50;--stamp-ok:#4caf50;--stamp-ng:#ff5757;--stamp-progress:#ffa726;--stamp-blocked:#ff5757}[data-theme=light]{--bg-primary:#f5f5fa;--bg-secondary:#fff;--bg-card:#fff;--bg-input:#f0f0f5;--bg-stamp-event:#7c5bf00f;--text-primary:#1a1a2e;--text-secondary:#6b6b8a;--accent:#7c5bf0;--accent-hover:#6a4bd8;--accent-dim:#7c5bf01a;--border:#e0e0ea;--error:#e53935;--success:#43a047;--stamp-ok:#43a047;--stamp-ng:#e53935;--stamp-progress:#f57c00;--stamp-blocked:#e53935;--shadow:0 4px 20px #00000014}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5}.app-container{flex-direction:column;max-width:860px;height:100dvh;margin:0 auto;display:flex;overflow:hidden}.app-header{background:linear-gradient(135deg, var(--bg-secondary), var(--bg-card));border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);justify-content:space-between;align-items:center;gap:12px;padding:16px 24px;display:flex}.header-left{align-items:baseline;gap:12px;display:flex}.app-header h1{background:linear-gradient(135deg,#7c5bf0,#c084fc);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:20px;font-weight:700}.room-label{color:var(--text-secondary);background:var(--accent-dim);border-radius:20px;padding:2px 10px;font-size:12px}.clear-btn{border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:1px solid #0000;justify-content:center;align-items:center;padding:6px 10px;font-size:16px;transition:all .15s;display:flex}.clear-btn:hover{border-color:var(--error);background:#ff575726}.clear-btn:active{transform:scale(.9)}.clear-btn--confirm{background:var(--error);color:#fff;border-color:var(--error);font-size:12px;font-weight:600;font-family:var(--font);padding:6px 12px;animation:1s ease-in-out infinite pulse}.demo-notice{background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-direction:column;gap:6px;padding:10px 24px;display:flex}.demo-notice-item{color:var(--text-secondary);align-items:center;gap:8px;font-size:12px;line-height:1.4;display:flex}.demo-notice-item strong{color:var(--text-primary);font-weight:600}.demo-notice-icon{flex-shrink:0;font-size:14px}.demo-notice-warning{color:#ffa726}.demo-notice-warning strong{color:#ffcc80}.chat-area{flex-direction:column;flex:1;gap:12px;padding:16px 24px;display:flex;overflow-y:auto}.chat-area::-webkit-scrollbar{width:6px}.chat-area::-webkit-scrollbar-track{background:0 0}.chat-area::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.message-list{flex-direction:column;gap:14px;display:flex}.empty-state{text-align:center;color:var(--text-secondary);padding:40px 0;font-size:14px}.loading-state{text-align:center;color:var(--text-secondary);padding:40px 0;font-size:14px;animation:1.5s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:.5}50%{opacity:1}}.message-item{background:var(--bg-card);border-radius:var(--radius);border:1px solid #0000;padding:14px 18px;transition:background .2s;position:relative}.message-item:hover{border-color:var(--border);background:var(--bg-input)}.message-header{justify-content:space-between;align-items:center;margin-bottom:4px;display:flex}.sender{color:var(--accent);font-size:13px;font-weight:600}.time{color:var(--text-secondary);font-size:12px}.message-body{color:var(--text-primary);word-wrap:break-word;font-size:14px}.stamp-react-btn{background:var(--accent-dim);cursor:pointer;opacity:0;border:none;border-radius:6px;padding:4px 8px;font-size:14px;transition:opacity .2s,transform .15s;position:absolute;bottom:8px;right:8px}.message-item:hover .stamp-react-btn{opacity:1}.stamp-react-btn:hover{background:var(--accent);transform:scale(1.15)}.stamp-item{color:var(--text-secondary);background:var(--bg-stamp-event);border-radius:var(--radius-sm);border-left:3px solid var(--accent-dim);align-items:center;gap:8px;padding:8px 16px;font-size:13px;display:flex}.stamp-emoji{font-size:20px}.stamp-image{object-fit:contain;border-radius:4px;width:28px;height:28px}.stamp-label{color:var(--text-secondary);background:var(--accent-dim);border-radius:10px;padding:2px 8px;font-size:12px;transition:background .2s,color .2s}.stamp-item[data-action=ok] .stamp-label,.stamp-item[data-action=done] .stamp-label,.stamp-item[data-action=approve] .stamp-label,.stamp-item[data-action=confirm] .stamp-label{color:var(--stamp-ok);background:#4caf5033}.stamp-item[data-action=ok],.stamp-item[data-action=done],.stamp-item[data-action=approve],.stamp-item[data-action=confirm]{border-left-color:var(--stamp-ok)}.stamp-item[data-action=ng] .stamp-label,.stamp-item[data-action=blocked] .stamp-label,.stamp-item[data-action=cancel] .stamp-label{color:var(--stamp-ng);background:#ff575733}.stamp-item[data-action=ng],.stamp-item[data-action=blocked],.stamp-item[data-action=cancel]{border-left-color:var(--stamp-ng)}.stamp-item[data-action=progress] .stamp-label{color:var(--stamp-progress);background:#ffa72633}.stamp-item[data-action=progress]{border-left-color:var(--stamp-progress)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message-item,.stamp-item{animation:.3s fadeIn}.stamp-picker-overlay{z-index:100;background:#0006;justify-content:center;align-items:flex-end;animation:.2s fadeOverlay;display:flex;position:fixed;inset:0}@keyframes fadeOverlay{0%{opacity:0}to{opacity:1}}.stamp-picker{background:var(--bg-secondary);border-top:1px solid var(--border);border-radius:var(--radius) var(--radius) 0 0;width:100%;max-width:860px;max-height:50vh;box-shadow:var(--shadow);padding:16px;animation:.25s slideUp;overflow-y:auto}@keyframes slideUp{0%{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}.stamp-picker-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.stamp-picker-header h3{font-size:14px;font-weight:600}.close-btn{color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;justify-content:center;align-items:center;min-width:36px;min-height:36px;padding:8px;font-size:18px;transition:background .15s,color .15s;display:flex}.close-btn:hover{color:var(--text-primary);background:var(--accent-dim)}.picker-loading,.picker-empty{text-align:center;color:var(--text-secondary);padding:16px 0;font-size:13px}.stamp-category{border-bottom:1px solid var(--border);margin-bottom:16px;padding-bottom:16px}.stamp-category:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.category-label{text-transform:uppercase;color:var(--text-secondary);letter-spacing:.5px;margin-bottom:8px;font-size:12px;font-weight:600}.stamp-grid{grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:6px;display:grid}.stamp-btn{border-radius:var(--radius-sm);background:var(--bg-card);cursor:pointer;border:1px solid #0000;flex-direction:column;align-items:center;gap:4px;padding:8px 4px;transition:all .15s;display:flex}.stamp-btn:hover{border-color:var(--accent);background:var(--accent-dim);transform:scale(1.08)}.stamp-btn:active{transform:scale(.95)}.stamp-icon{font-size:24px}.stamp-icon-img{object-fit:contain;border-radius:4px;width:36px;height:36px}.stamp-name{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;max-width:64px;font-size:11px;overflow:hidden}.error-banner{color:var(--error);border-radius:var(--radius-sm);text-align:center;background:#ff575726;padding:8px 16px;font-size:13px}.input-area{background:var(--bg-secondary);border-top:1px solid var(--border);padding:12px 24px}.message-input{gap:8px;display:flex}.message-input input{border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);font-size:14px;font-family:var(--font);border-radius:24px;outline:none;flex:1;padding:10px 16px;transition:border-color .2s}.message-input input:focus{border-color:var(--accent)}.message-input input::placeholder{color:var(--text-secondary)}.message-input button{background:linear-gradient(135deg, var(--accent), #9371ff);color:#fff;font-size:14px;font-weight:600;font-family:var(--font);cursor:pointer;border:none;border-radius:24px;padding:10px 20px;transition:transform .15s,opacity .2s}.message-input button:hover:not(:disabled){transform:scale(1.05)}.message-input button:active:not(:disabled){transform:scale(.95)}.message-input button:disabled{opacity:.4;cursor:not-allowed}@media (width<=600px){.app-container{max-width:100%}.app-header{padding:12px 16px}.demo-notice{padding:8px 16px}.chat-area{padding:12px 16px}.input-area{padding:10px 16px}.sender{font-size:14px}.message-body{font-size:15px}.stamp-react-btn{opacity:.5}.stamp-react-btn:active{opacity:1;background:var(--accent)}}