:root{--gold: #c99c63;--gold-dark: #b3894f;--cream: #f8f6f0;--ink: #342723;--ink-soft: #6d615b;--line: #e7e0d5;--bubble-me: #dcf3d6;--bubble-them: #ffffff;--danger: #c0392b;--shadow: 0 1px 3px rgba(52, 39, 35, .12);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--cream);-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}button,input{font-family:inherit}button{cursor:pointer}.app,.screen{height:100%;display:flex;flex-direction:column}.splash{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--ink-soft)}.splash-logo{width:72px;height:72px;border-radius:20px;background:var(--gold);color:#fff;display:grid;place-items:center;font-weight:700;font-size:28px;letter-spacing:1px;box-shadow:var(--shadow)}.login{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px;padding-top:calc(24px + var(--safe-top));background:linear-gradient(160deg,var(--cream) 0%,#f1e9db 100%)}.login-card{width:100%;max-width:380px;background:#fff;border-radius:24px;padding:32px 24px;box-shadow:0 12px 40px #3427231f;text-align:center}.login-logo{width:76px;height:76px;margin:0 auto 16px;border-radius:22px;background:var(--gold);color:#fff;display:grid;place-items:center;font-weight:700;font-size:30px;letter-spacing:1px}.login-title{margin:0;font-size:26px;letter-spacing:.5px}.login-sub{margin:4px 0 24px;color:var(--gold-dark);font-weight:600}.login-form{display:flex;flex-direction:column;gap:16px;text-align:left}.field{display:flex;flex-direction:column;gap:6px}.field span{font-size:13px;font-weight:600;color:var(--ink-soft)}.field input{padding:14px 16px;border:1px solid var(--line);border-radius:14px;font-size:16px;background:var(--cream);color:var(--ink);outline:none;transition:border-color .15s}.field input:focus{border-color:var(--gold);background:#fff}.login-error{color:var(--danger);font-size:14px;background:#fdecea;padding:10px 12px;border-radius:10px}.btn-primary{margin-top:4px;padding:15px;border:none;border-radius:14px;background:var(--gold);color:#fff;font-size:16px;font-weight:700;letter-spacing:.3px;box-shadow:var(--shadow);transition:background .15s,transform .05s}.btn-primary:active{transform:translateY(1px)}.btn-primary:disabled{opacity:.6}.topbar{background:var(--gold);color:#fff;padding:calc(10px + var(--safe-top)) 14px 12px;box-shadow:var(--shadow);position:sticky;top:0;z-index:10}.topbar-row{display:flex;align-items:center;justify-content:space-between}.topbar-title{display:flex;align-items:center;gap:10px}.brand-badge{width:40px;height:40px;border-radius:12px;background:#ffffff38;display:grid;place-items:center;font-weight:700;letter-spacing:.5px}.topbar-name{font-size:18px;font-weight:700;line-height:1.1}.topbar-sub{font-size:12px;opacity:.9}.icon-btn{background:#ffffff2e;color:#fff;border:none;border-radius:10px;padding:8px 14px;font-size:14px;font-weight:600}.icon-btn:active{background:#ffffff4d}.master-row{display:flex;align-items:center;gap:10px;margin-top:12px}.master-label{font-size:14px;font-weight:600}.master-state{font-size:13px;opacity:.9}.switch{width:48px;height:28px;border-radius:999px;background:#ffffff59;border:none;padding:0;position:relative;transition:background .2s;flex:none}.switch.on{background:#2ec26b}.switch-knob{position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 2px #0000004d;transition:transform .2s}.switch.on .switch-knob{transform:translate(20px)}.search-row{margin-top:12px}.search-input{width:100%;border:none;border-radius:12px;padding:10px 14px;font-size:15px;background:#ffffffeb;color:var(--ink);outline:none}.list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--cream)}.empty{padding:40px 24px;text-align:center;color:var(--ink-soft)}.conv-item{width:100%;display:flex;align-items:center;gap:12px;padding:12px 14px;background:none;border:none;border-bottom:1px solid var(--line);text-align:left}.conv-item:active{background:#efe8db}.avatar{width:50px;height:50px;border-radius:50%;background:linear-gradient(150deg,var(--gold),var(--gold-dark));color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;flex:none}.avatar.sm{width:38px;height:38px;font-size:14px}.conv-main{flex:1;min-width:0}.conv-top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.conv-name{font-weight:600;font-size:16px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-time{font-size:12px;color:var(--ink-soft);flex:none}.conv-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:3px}.conv-preview{font-size:14px;color:var(--ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}.conv-preview .you{color:var(--gold-dark);font-weight:600}.badge{flex:none;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:#2ec26b;color:#fff;font-size:12px;font-weight:700;display:grid;place-items:center}.ai-pill{flex:none;align-self:center;margin-left:4px;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.3px;border:1.5px solid transparent;-webkit-user-select:none;user-select:none;white-space:nowrap}.ai-pill.on{background:#e4f7ea;color:#1f9d57;border-color:#b7e8c7}.ai-pill.off{background:#f0ebe2;color:var(--ink-soft);border-color:var(--line)}.chat-screen{background:var(--cream)}.chat-header{display:flex;align-items:center;gap:8px;background:var(--gold);color:#fff;padding:calc(8px + var(--safe-top)) 12px 8px;box-shadow:var(--shadow);position:sticky;top:0;z-index:10}.back-btn{background:none;border:none;color:#fff;font-size:32px;line-height:1;padding:0 6px 4px;margin:0}.chat-head-main{flex:1;min-width:0}.chat-head-name{font-weight:700;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-head-sub{font-size:12px;opacity:.9}.messages{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:12px 10px 16px;display:flex;flex-direction:column;gap:4px;background-color:#efe7d8;background-image:radial-gradient(rgba(201,156,99,.08) 1px,transparent 1px);background-size:18px 18px}.day-divider{text-align:center;margin:10px 0}.day-divider span{background:#ffffffd9;color:var(--ink-soft);font-size:12px;font-weight:600;padding:4px 12px;border-radius:10px;box-shadow:var(--shadow)}.bubble-row{display:flex;margin:1px 0}.bubble-row.me{justify-content:flex-end}.bubble-row.them{justify-content:flex-start}.bubble{max-width:80%;padding:7px 11px 5px;border-radius:12px;box-shadow:var(--shadow);word-wrap:break-word;overflow-wrap:anywhere}.bubble.me{background:var(--bubble-me);border-top-right-radius:3px}.bubble.them{background:var(--bubble-them);border-top-left-radius:3px}.bubble-text{font-size:15px;line-height:1.35;color:var(--ink);white-space:pre-wrap}.bubble-text .muted{color:var(--ink-soft)}.bubble-meta{margin-top:2px;font-size:11px;color:var(--ink-soft);text-align:right}.meta-pending{color:var(--gold-dark)}.meta-fail{color:var(--danger);font-weight:600}.composer{display:flex;align-items:center;gap:8px;padding:8px 10px calc(8px + var(--safe-bottom));background:var(--cream);border-top:1px solid var(--line)}.composer-input{flex:1;border:1px solid var(--line);border-radius:22px;padding:12px 16px;font-size:16px;background:#fff;color:var(--ink);outline:none}.composer-input:focus{border-color:var(--gold)}.send-btn{flex:none;width:48px;height:48px;border-radius:50%;border:none;background:var(--gold);color:#fff;font-size:20px;display:grid;place-items:center;box-shadow:var(--shadow)}.send-btn:active{background:var(--gold-dark)}.send-btn:disabled{opacity:.5}.toast{position:fixed;left:50%;bottom:calc(80px + var(--safe-bottom));transform:translate(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-size:14px;max-width:88%;text-align:center;box-shadow:0 6px 20px #00000040;z-index:100}