:root{
  color-scheme:light;
  --bg:#f5f5f7;--surface:#fff;--surface-2:#ececef;--text:#0b0b0d;--muted:#6e6e73;
  --line:#e5e5ea;--accent:#0a84ff;--ok:#30d158;--danger:#ff453a;
  --shadow:0 18px 50px rgba(20,20,24,.09);
  --safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);
}
@media(prefers-color-scheme:dark){
  :root{
    color-scheme:dark;
    --bg:#000;--surface:#1d1d1f;--surface-2:#161617;--text:#f5f5f7;--muted:#86868b;
    --line:#2c2c2e;--accent:#2997ff;--shadow:0 18px 54px rgba(0,0,0,.4);
  }
}
*{box-sizing:border-box}
html{background:var(--bg);-webkit-text-size-adjust:100%}
body{
  margin:0;min-height:100dvh;background:var(--bg);color:var(--text);
  font:15px/1.45 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
button,input,textarea,select{font-family:inherit;font-size:16px}
.shell{
  width:min(100%,820px);min-height:100dvh;margin:auto;
  padding:calc(14px + var(--safe-top)) 16px calc(110px + var(--safe-bottom));
  background:transparent;
}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:2px 2px 14px}
.wordmark{font-size:28px;font-weight:850;letter-spacing:.14em;color:var(--text);text-decoration:none}
.top-actions{display:flex;gap:8px;align-items:center}
.pill,.chip{
  display:inline-flex;align-items:center;padding:7px 11px;border:1px solid var(--line);
  border-radius:999px;background:var(--surface);color:var(--muted);font-size:11px;font-weight:700;
}
.chip{cursor:pointer;background:transparent;color:var(--text)}
.chip.on{background:var(--text);color:var(--bg);border-color:var(--text)}
.ghost-btn,.btn,.icon-round{
  appearance:none;border:0;cursor:pointer;
}
.ghost-btn{background:transparent;color:var(--accent);font-size:14px;font-weight:650;padding:8px}
.btn{
  border-radius:999px;padding:13px 18px;font-size:15px;font-weight:750;
}
.primary{background:var(--text);color:var(--bg)}
.secondary{background:var(--surface);color:var(--text);border:1px solid var(--line)}
.wide{width:100%;margin-top:12px}
.icon-round{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  background:linear-gradient(145deg,var(--surface),var(--surface-2));
  box-shadow:inset 0 1px rgba(255,255,255,.25),0 5px 14px rgba(0,0,0,.08);
  color:var(--text);display:grid;place-items:center;
}
.view{display:none;animation:rise .28s ease}
.view.active{display:block}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.eyebrow,.label{margin:0;color:var(--muted);font-size:11px;font-weight:750;letter-spacing:.08em;text-transform:uppercase}
.hero h1,.page-intro h1{margin:10px 0 12px;font-size:clamp(34px,10vw,56px);line-height:.98;letter-spacing:-.055em}
.lead,.page-intro>p{margin:0;color:var(--muted);font-size:16px;max-width:640px}
.page-intro{padding:18px 4px 12px}
.page-intro.compact h1{font-size:34px}
.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
.center-row{justify-content:center}
.card{
  margin-top:14px;padding:18px;border:1px solid var(--line);border-radius:24px;
  background:var(--surface);box-shadow:var(--shadow);
}
.center{text-align:center}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;word-break:break-all}
.mode-row{display:flex;gap:8px;justify-content:center;margin-bottom:14px}
.mic-btn{
  width:88px;height:88px;margin:8px auto;display:grid;place-items:center;
  border-radius:50%;border:0;background:var(--text);color:var(--bg);font-size:34px;
  box-shadow:0 12px 30px rgba(0,0,0,.18);
}
.mic-btn.large{width:108px;height:108px;font-size:40px}
.mic-btn.recording{background:var(--danger);animation:pulse 1.2s ease-in-out infinite}
.mic-btn.busy{opacity:.55;pointer-events:none}
@keyframes pulse{50%{transform:scale(1.05)}}
.list{display:grid;gap:8px;margin-top:8px}
.list button,.list .row{
  display:grid;gap:4px;width:100%;text-align:left;padding:14px 16px;border-radius:18px;
  border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;
}
.list small{color:var(--muted)}
.empty{color:var(--muted);padding:24px 8px;text-align:center}
.chat-head{display:flex;align-items:center;gap:12px;padding:4px 0 10px}
.messages{display:flex;flex-direction:column;gap:10px;min-height:40vh;padding-bottom:12px}
.message-bubble{
  max-width:92%;padding:12px 14px;border-radius:18px;background:var(--surface-2);border:1px solid var(--line);
}
.message-bubble.mine{align-self:flex-end;background:var(--text);color:var(--bg);border-color:var(--text)}
.message-bubble.public{max-width:100%}
.badge{display:inline-flex;padding:3px 8px;border-radius:999px;font-size:10px;font-weight:700;background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--accent)}
.message-bubble.mine .badge{background:rgba(255,255,255,.18);color:#fff}
.composer.voice-only{
  position:sticky;bottom:calc(78px + var(--safe-bottom));margin-top:8px;padding:14px;
  border:1px solid var(--line);border-radius:28px;background:color-mix(in srgb,var(--surface) 88%,transparent);
  backdrop-filter:blur(18px);
}
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.metric-grid article{padding:16px;border-radius:20px;border:1px solid var(--line);background:var(--surface)}
.metric-grid strong{display:block;font-size:28px;letter-spacing:-.04em}
.metric-grid span{color:var(--muted);font-size:11px}
.form label{display:grid;gap:6px;margin-top:12px;color:var(--muted);font-size:12px;font-weight:650}
input,textarea,select{
  width:100%;border:1px solid var(--line);border-radius:14px;background:var(--surface-2);
  color:var(--text);outline:0;padding:12px 13px;font-size:16px;
}
textarea{resize:vertical;min-height:140px}
.form-status{min-height:18px;margin-top:10px;text-align:center;color:var(--muted);font-size:13px}
.form-status.error{color:var(--danger)}
.form-status.success{color:var(--ok)}
.auth-card{padding:20px 18px 18px}
.oauth-stack{display:grid;gap:10px}
.oauth-button{
  display:flex;width:100%;align-items:center;justify-content:center;min-height:48px;
  border-radius:999px;text-decoration:none;font-weight:700;font-size:15px;cursor:pointer;
  border:1px solid var(--line);background:var(--surface-2);color:var(--text);box-sizing:border-box;
}
.oauth-button:hover{border-color:var(--accent);color:var(--accent)}
.auth-alt-method{display:flex;width:100%;min-height:46px;align-items:center;justify-content:center}
.more-auth-btn{
  width:100%;margin-top:16px;padding:12px;border:0;border-radius:14px;background:transparent;
  color:var(--muted);font-size:14px;font-weight:650;cursor:pointer;text-decoration:underline;
}
.email-auth{margin-top:8px;padding-top:8px;border-top:1px solid var(--line)}
.tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:10px 0 4px}
.tab{
  border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--muted);
  padding:10px;font-size:14px;font-weight:700;cursor:pointer;
}
.tab.on{background:var(--text);color:var(--bg);border-color:var(--text)}
.oauth-note{margin:14px 0 0;font-size:12px;line-height:1.4;text-align:center}
.dock{
  position:fixed;z-index:50;left:50%;bottom:calc(4px + var(--safe-bottom));transform:translateX(-50%);
  display:grid;grid-template-columns:repeat(5,1fr);width:min(560px,calc(100% - 20px));height:64px;padding:5px;
  border:1px solid color-mix(in srgb,var(--line) 70%,transparent);border-radius:28px;
  background:color-mix(in srgb,var(--surface) 82%,transparent);backdrop-filter:blur(28px) saturate(150%);
  box-shadow:0 14px 45px rgba(0,0,0,.18);
}
.dock button{border:0;border-radius:22px;background:transparent;color:var(--muted);font-size:20px}
.dock button.on{background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--text)}
.modal{
  position:fixed;z-index:80;inset:0;display:none;align-items:end;justify-content:center;padding:16px;
  background:rgba(0,0,0,.36);backdrop-filter:blur(8px);
}
.modal.open{display:flex}
.sheet{
  position:relative;width:min(100%,560px);max-height:calc(100dvh - 28px);overflow:auto;
  padding:24px 18px calc(24px + var(--safe-bottom));border-radius:30px;background:var(--surface);
  box-shadow:0 30px 90px rgba(0,0,0,.3);
}
.sheet h2{margin:6px 0 12px;font-size:28px;letter-spacing:-.04em}
.sheet .close{position:absolute;right:14px;top:14px}
.amb{margin-top:10px;color:var(--muted);font-size:13px}
.toast{
  position:fixed;left:50%;bottom:calc(84px + var(--safe-bottom));transform:translateX(-50%);
  z-index:90;padding:10px 14px;border-radius:14px;background:rgba(20,20,24,.92);color:#fff;font-size:13px;
  max-width:min(92vw,420px);text-align:center;
}
.result{margin-top:14px;text-align:left;white-space:pre-wrap}
@media(min-width:700px){.modal{align-items:center}}
.hidden{display:none!important}