:root{--bg: #d8c6a0;--panel: #e7dabd;--ink: #3a2d1b;--muted: #5f5238;--accent: #8c5a30;--accent-ink: #fbf3e1;--user-bubble: #d0ba8e;--user-ink: #362a18;--border: #c7b489;--error-bg: #e8d2bd;--error-ink: #8a4830;--notice-bg: #dccca4;--font-display: Georgia, "Iowan Old Style", "Times New Roman", serif}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg);color:var(--ink);line-height:1.5}h1{font-size:1.5rem}h2{font-size:1.2rem}h3{font-size:1rem;margin:1.2rem 0 .4rem}button{cursor:pointer;font:inherit;color:inherit}.btn{border:1px solid var(--border);background:var(--panel);color:var(--ink);border-radius:8px;padding:8px 12px;margin:2px 0}.btn:hover{border-color:var(--accent)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.btn.full{width:100%}.btn.google{width:100%;margin-bottom:12px}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:var(--panel);color:var(--ink);font:inherit}input::placeholder,textarea::placeholder{color:var(--muted)}.error{background:var(--error-bg);color:var(--error-ink);padding:8px 12px;border-radius:8px;margin:8px 0}.notice{background:var(--notice-bg);padding:8px 12px;border-radius:8px;margin:8px 0}.notice.small{font-size:.85rem}.hint{color:var(--muted);font-size:.85rem}.center-note{padding:40px;text-align:center;color:var(--muted)}.auth-wrap{max-width:440px;margin:48px auto;padding:24px;background:var(--panel);border:1px solid var(--border);border-radius:12px}.tabs{display:flex;gap:8px;margin:12px 0}.tab{flex:1;padding:8px;border:none;background:transparent;border-bottom:2px solid transparent}.tab.active{border-bottom-color:var(--accent);font-weight:600}.form{display:flex;flex-direction:column;gap:10px}.form label{display:flex;flex-direction:column;gap:4px;font-size:.9rem}.form .row{display:flex;gap:10px}.form .row label{flex:1}.app-shell{display:flex;min-height:100vh}.topbar{display:flex;gap:12px;align-items:center;padding:8px 16px;border-bottom:1px solid var(--border)}.topbar .who{flex:1;color:var(--muted);font-size:.9rem}.sidebar{width:280px;flex-shrink:0;padding:16px;border-right:1px solid var(--border);background:var(--panel);overflow-y:auto;height:100vh;position:sticky;top:0}.signed-in{font-size:.9rem;margin-bottom:8px}.divider{height:1px;background:var(--border);margin:14px 0}.session-list{list-style:none;margin:8px 0;padding:0}.session-list li{display:flex;gap:4px;margin:2px 0}.session-list li.active .session-open{border-color:var(--accent);font-weight:600}.session-open{flex:1;text-align:left;border:1px solid var(--border);background:var(--panel);border-radius:8px;padding:6px 8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.session-del{border:1px solid var(--border);background:var(--panel);border-radius:8px;padding:6px 8px}.rename{margin-top:12px;display:flex;flex-direction:column;gap:6px}.rename label{display:flex;flex-direction:column;gap:4px;font-size:.85rem}.usage-label{font-size:.8rem;color:var(--muted)}.usage-bar{height:6px;background:var(--border);border-radius:3px;overflow:hidden;margin-top:4px}.usage-fill{height:100%;background:var(--accent)}.main-panel{flex:1;padding:24px;max-width:820px;margin:0 auto;width:100%;position:relative;display:flex;flex-direction:column}.messages{display:flex;flex-direction:column;gap:14px;margin:auto 0 24px;position:relative;z-index:1}.msg{display:flex;flex-direction:column;gap:6px}.msg.user{align-items:flex-end}.msg .bubble{max-width:80%;padding:10px 14px;border-radius:12px;white-space:pre-wrap;word-wrap:break-word}.msg.user .bubble{background:#d0ba8e9e;color:var(--user-ink)}.msg.assistant .bubble{background:#e7dabda3;border:1px solid rgba(199,180,137,.55)}.chat-input textarea{background:#e7dabdb3}.caret{opacity:.6}.progress{color:var(--muted)}.fb-row{display:flex;gap:6px}.fb{border:1px solid var(--border);background:var(--panel);border-radius:8px;padding:2px 8px}.fb-detail{display:flex;gap:6px;align-items:center}.fb-detail input{flex:1}.fb-thanks{color:var(--muted);font-size:.85rem}.chat-input{display:flex;gap:8px;align-items:flex-end;position:sticky;bottom:24px;z-index:1}.chat-input textarea{flex:1;resize:vertical}.bg-art{position:fixed;top:0;right:0;bottom:0;left:280px;pointer-events:none;z-index:0;overflow:hidden}.main-panel>h1{position:relative;z-index:1}.art-branch{position:absolute;top:-6%;right:-3%;width:min(52vw,640px);aspect-ratio:400 / 520}.art-branch svg{width:100%;height:100%;opacity:.38}.art-breeze{position:absolute;top:0;right:0;bottom:0;left:0}.art-breeze svg{width:100%;height:100%}.art-landscape{position:absolute;left:0;right:0;bottom:0;height:min(38vh,380px)}.art-landscape svg{width:100%;height:100%}.chat-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:52vh;text-align:center;padding:24px}.enso{width:132px;height:auto;color:var(--accent);opacity:.55}.zen-quote{font-family:var(--font-display);font-size:1.2rem;line-height:1.5;color:var(--ink);max-width:30ch;margin:6px 0 0;text-wrap:balance}.zen-quote-attr{color:var(--muted);font-size:.85rem;margin:0;letter-spacing:.02em}.zen-invite{color:var(--muted);font-size:.85rem;font-style:italic;margin:10px 0 0}@media (prefers-reduced-motion: no-preference){.enso-breathe{animation:enso-breathe 6s ease-in-out infinite;transform-origin:center}@keyframes enso-breathe{0%,to{transform:scale(1);opacity:.5}50%{transform:scale(1.05);opacity:.62}}.zen-quote{animation:quote-fade 1.1s ease both}@keyframes quote-fade{0%{opacity:0}to{opacity:1}}}.admin{padding:8px 16px}.kpi-row{display:flex;gap:12px;flex-wrap:wrap;margin:12px 0}.kpi{flex:1;min-width:120px;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px;text-align:center;font-size:.8rem;color:var(--muted)}.kpi span{display:block;font-size:1.4rem;color:var(--ink);font-weight:600}.admin-cols{display:flex;gap:16px;flex-wrap:wrap}.admin-cols>div{flex:1;min-width:260px}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.85rem}th,td{border:1px solid var(--border);padding:4px 8px;text-align:left}th{background:var(--notice-bg)}.fb-item{margin:4px 0;border:1px solid var(--border);border-radius:8px;padding:6px 10px}.zen-footer{position:fixed;bottom:0;left:0;width:100%;text-align:center;padding:6px 0 10px;font-size:.7rem;color:var(--muted);font-style:italic;letter-spacing:.03em;pointer-events:none;z-index:999}