:root{--blue:#0b4aa2;--blue2:#0f5ac2;--orange:#f28a1a;--bg:#eef3f8;--surface:#fff;--text:#182230;--muted:#667085;--line:#dbe4ee;--success:#198754;--danger:#c4362e;--shadow:0 10px 30px rgba(16,37,63,.10)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text)}body{min-height:100dvh}button,input{font:inherit}button{-webkit-tap-highlight-color:transparent}.hidden{display:none!important}
.app-shell{width:100%;min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto;background:var(--bg)}
.topbar{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:auto 1fr auto;gap:11px;align-items:center;padding:calc(9px + env(safe-area-inset-top)) 14px 9px;background:linear-gradient(135deg,var(--blue),#07356f);color:#fff;box-shadow:0 3px 18px rgba(0,0,0,.13)}
.header-avatar{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid rgba(255,255,255,.88);box-shadow:0 2px 10px rgba(0,0,0,.18)}.brand-copy{display:flex;flex-direction:column;min-width:0}.brand-copy strong{font-size:1.02rem}.brand-copy strong small{font-size:.69rem;font-weight:500;opacity:.82}.brand-copy>span{font-size:.72rem;opacity:.82}.icon-btn{width:42px;height:42px;border:0;border-radius:12px;background:rgba(255,255,255,.13);color:#fff;font-size:1.35rem;cursor:pointer}
.chat{width:min(760px,100%);margin:0 auto;padding:14px 12px 150px}.welcome{display:flex;gap:12px;align-items:flex-start;padding:13px 14px;margin-bottom:13px;border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.72);backdrop-filter:blur(10px)}.welcome h1{font-size:.98rem;margin:0 0 4px}.welcome p{margin:0;color:var(--muted);font-size:.86rem;line-height:1.4}.status-dot{width:10px;height:10px;margin-top:5px;border-radius:50%;background:var(--success);box-shadow:0 0 0 5px rgba(25,135,84,.11);flex:0 0 auto}
.messages{display:flex;flex-direction:column;gap:10px}.message-row{display:flex;width:100%;align-items:flex-end;gap:7px}.message-row.user{justify-content:flex-end}.message-row.user .assistant-avatar-wrap,.message-row.user .message-author{display:none}.assistant-avatar-wrap{width:31px;flex:0 0 31px}.message-avatar{width:31px;height:31px;object-fit:cover;border-radius:50%;border:1px solid #cfdbe7}.message-stack{display:flex;flex-direction:column;max-width:88%}.message-author{font-size:.68rem;color:#718096;margin:0 0 3px 4px}.bubble{padding:11px 13px;border-radius:17px;line-height:1.46;font-size:.93rem;white-space:pre-wrap;overflow-wrap:anywhere;box-shadow:0 2px 8px rgba(28,49,74,.06)}.assistant .bubble,.human .bubble{background:#fff;border:1px solid var(--line);border-bottom-left-radius:6px}.human .bubble{border-left:3px solid var(--orange)}.user .bubble{background:var(--blue);color:#fff;border-bottom-right-radius:6px}.system .bubble{background:#fff8eb;border:1px solid #f3d4a7;color:#6c4b1d}.loading .bubble::after{content:'•••';letter-spacing:2px;animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.35}}
.quick-options{display:grid;grid-template-columns:1fr;gap:8px;margin:13px 0 4px}.quick-btn{min-height:49px;padding:10px 13px;display:flex;align-items:center;gap:10px;text-align:left;border:1px solid #cbd9e8;border-radius:14px;background:var(--surface);color:#173557;cursor:pointer;box-shadow:0 3px 10px rgba(19,56,94,.04)}.quick-btn:active{transform:translateY(1px)}.quick-btn .emoji{font-size:1.18rem}.support-card{margin-top:12px;padding:14px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.support-card h3{margin:0 0 9px;font-size:.96rem}.summary{margin:0;padding:11px;background:#f7f9fc;border-radius:12px;font-size:.82rem;line-height:1.5;white-space:pre-wrap;border:1px solid #e1e8f0}.support-actions{display:grid;gap:8px;margin-top:11px}.support-actions button{width:100%;min-height:49px;border:0;border-radius:13px;font-weight:700;cursor:pointer}.whatsapp-btn{background:#198754;color:#fff}.human-btn{background:var(--blue);color:#fff}
.composer-wrap{position:fixed;left:0;right:0;bottom:0;z-index:12;padding:8px 10px calc(7px + env(safe-area-inset-bottom));background:linear-gradient(to top,#eef3f8 82%,rgba(238,243,248,0))}.composer{width:min(760px,100%);margin:0 auto;display:grid;grid-template-columns:43px 1fr 46px;gap:6px;padding:6px;border:1px solid #cbd8e6;border-radius:18px;background:#fff;box-shadow:0 8px 26px rgba(25,45,70,.12)}.composer input{min-width:0;height:44px;padding:0 7px;border:0;outline:none;font-size:16px;color:var(--text);background:transparent}.composer button{height:44px;border:0;border-radius:12px;cursor:pointer}.composer #sendBtn{width:44px;background:var(--orange);color:#fff;font-weight:900;font-size:1.1rem}.mic-btn{width:42px;background:#eef4fb;color:var(--blue);font-size:1.05rem}.mic-btn.recording{background:#ffe8e7;color:var(--danger)}.composer-wrap small{display:block;width:min(760px,100%);margin:4px auto 0;text-align:center;color:#7a8999;font-size:.66rem}.recording-bar{width:min(760px,100%);margin:6px auto 0;background:#fff;border:1px solid #e5c6c4;border-radius:13px;padding:7px 9px;display:flex;align-items:center;gap:8px;font-size:.8rem}.record-dot{width:9px;height:9px;border-radius:50%;background:var(--danger);animation:pulse 1s infinite}.recording-bar button{margin-left:auto;border:0;border-radius:9px;padding:6px 9px;cursor:pointer}.recording-bar button+button{margin-left:0}
@media(min-width:640px){.quick-options{grid-template-columns:1fr 1fr}.chat{padding-top:20px}.message-stack{max-width:72%}}@media(display-mode:standalone){body{overscroll-behavior-y:none}}