:root{
  --bg:#0a0f0a; --bg-2:#0f160f; --surface:#121a12; --surface-2:#162016;
  --border:#1f2f1f; --text:#d6e6d6; --muted:#7c8f7c;
  --accent:#2e7d32; --accent-2:#43a047; --shadow:0 8px 30px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:ui-sans-serif,system-ui,sans-serif;
  background:radial-gradient(1200px 600px at 20% -10%, #102010 0%, var(--bg) 60%) fixed;color:var(--text);}
.app{max-width:820px;margin:0 auto;height:100vh;display:flex;flex-direction:column;padding:16px;gap:12px;}
.topbar{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(180deg,var(--surface),var(--bg-2));
  border:1px solid var(--border);border-radius:16px;padding:14px 16px;box-shadow:var(--shadow);}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-2));}
.brand-title{font-weight:600}.brand-sub{font-size:12px;color:var(--muted)}
.ghost{background:transparent;border:1px solid var(--border);color:var(--text);border-radius:10px;padding:8px 12px;cursor:pointer;font-size:13px;}
.ghost.ok{border-color:var(--accent);color:var(--accent-2)}

.chat{flex:1;overflow-y:auto;padding:16px;background:linear-gradient(180deg,var(--surface),var(--bg-2));
  border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;}
.msg{max-width:78%;padding:10px 14px;border-radius:14px;line-height:1.45;font-size:14.5px;word-wrap:break-word;white-space:pre-wrap;position:relative;}
.msg .badge{display:inline-block;font-size:10px;font-weight:700;padding:1px 6px;border-radius:6px;margin-right:6px;vertical-align:middle;}
.msg.m{align-self:flex-end;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;}
.msg.m .badge{background:rgba(0,0,0,.25);color:#fff}
.msg.s{align-self:flex-start;background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--accent);}
.msg.s .badge{background:rgba(67,160,71,.15);color:#8fd694}
.msg time{display:block;font-size:11px;opacity:.6;margin-top:6px;}
audio{width:100%;margin-top:6px;height:32px;outline:none;}

.composer{display:flex;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:10px;box-shadow:var(--shadow);align-items:center;}
.composer input{flex:1;background:transparent;border:none;outline:none;color:var(--text);font-size:15px;padding:10px 12px;}
.composer button{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;border-radius:10px;padding:10px 20px;font-weight:600;cursor:pointer;transition:.1s;}
.composer button:active{transform:scale(.97)}
.rec-btn{background:var(--surface-2)!important;border:1px solid var(--border)!important;padding:10px 14px!important;border-radius:10px;color:#fff;cursor:pointer;font-size:18px;}
.rec-btn.recording{background:#c62828!important;border-color:#e53935!important;animation:pulse 1s infinite;}
@keyframes pulse{0%{opacity:1}50%{opacity:.5}100%{opacity:1}}