:root{--bg:#0f172a;--bg-soft:#1e293b;--fg:#e2e8f0;--fg-dim:#94a3b8;--accent:#14b8a6;--accent-soft:rgba(20,184,166,0.15);--border:rgba(148,163,184,0.18);--radius:14px;--shadow:0 18px 48px rgba(0,0,0,0.35);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:dark}*{box-sizing:border-box}body,html{min-height:100vh;margin:0}body{background:radial-gradient(1200px 600px at 90% -10%,rgba(20,184,166,.12),transparent),radial-gradient(900px 500px at -10% 10%,rgba(94,234,212,.08),transparent),linear-gradient(180deg,#0b1224 0,var(--bg) 100%);color:var(--fg);-webkit-font-smoothing:antialiased}.app{max-width:1180px;margin:0 auto;padding:48px 24px 96px}.hero{text-align:center;margin-bottom:32px}.badge{display:inline-block;padding:6px 14px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}.hero h1{font-size:clamp(40px,6vw,72px);margin:18px 0 12px;font-weight:800;letter-spacing:-.02em}.grad{background:linear-gradient(135deg,var(--accent) 0,#2dd4bf 50%,#5eead4 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.sub{color:var(--fg-dim);font-size:18px;max-width:640px;margin:0 auto;line-height:1.55}.card{margin-top:36px;padding:28px;border-radius:var(--radius);background:rgba(15,23,42,.6);border:1px solid var(--border);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.coming-soon{color:var(--fg-dim);text-align:center;margin:0;font-style:italic}.messages{display:flex;flex-direction:column;gap:14px;min-height:280px;max-height:60vh;overflow-y:auto;padding-bottom:12px;margin-bottom:16px}.empty{color:var(--fg-dim);text-align:center;padding:40px 0}.empty>p{margin:0 0 18px;font-style:italic}.suggestions{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px;max-width:540px;margin:0 auto}.suggestion{padding:10px 14px;font-size:13px;text-align:left;background:rgba(15,23,42,.6);border:1px solid var(--border);border-radius:10px;color:var(--fg-dim);cursor:pointer;transition:all .15s ease;font-style:normal}.suggestion:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}@media (max-width:640px){.suggestions{grid-template-columns:1fr}}.msg{display:flex;flex-direction:column;gap:4px}.msg-role{font-size:11px;color:var(--fg-dim);text-transform:uppercase;letter-spacing:.06em;font-weight:600}.msg-body{padding:12px 16px;border-radius:14px;line-height:1.55;white-space:pre-wrap;word-wrap:break-word}.msg-user .msg-body{background:var(--accent);color:white;align-self:flex-end;max-width:80%;margin-left:auto}.msg-user .msg-role{text-align:right}.msg-assistant .msg-body{background:rgba(2,6,23,.5);border:1px solid var(--border);color:var(--fg)}.caret{display:inline-block;width:8px;height:16px;background:var(--accent);margin-left:4px;vertical-align:text-bottom;animation:blink 1s steps(2,start) infinite}@keyframes blink{to{visibility:hidden}}.composer{display:flex;gap:10px;padding-top:14px;border-top:1px solid var(--border)}.composer-input{flex:1 1;padding:12px 14px;background:rgba(15,23,42,.7);border:1px solid var(--border);border-radius:10px;color:var(--fg);font-size:15px;outline:none;transition:border .15s ease,box-shadow .15s ease}.composer-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.composer-input:disabled{opacity:.6}.composer-send{padding:12px 22px;border:none;border-radius:10px;background:var(--accent);color:white;font-weight:600;font-size:14px;cursor:pointer;transition:background .15s ease,opacity .15s ease}.composer-send:hover:not(:disabled){background:#0d9488}.composer-send:disabled{opacity:.5;cursor:not-allowed}.footer{margin-top:48px;padding-top:24px;border-top:1px solid var(--border);text-align:center;font-size:13px;display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.footer,.footer a{color:var(--fg-dim)}.footer a{text-decoration:none;transition:color .15s ease}.footer a:hover{color:var(--accent)}.footer-dot{opacity:.6}.tool-pill{display:inline-flex;align-items:center;gap:6px;padding:2px 8px;margin:4px 0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;font-weight:600;background:var(--accent-soft);color:var(--accent);border-radius:6px;text-transform:lowercase}