:root{--bg: #e6e7ee;--fg: #4b4f63;--accent: #6f73a8;--shadow-light: #ffffff;--shadow-dark: #b8b9c5}@media(prefers-color-scheme:dark){:root{--bg: #1f2030;--fg: #d8dae8;--accent: #9fa4d8;--shadow-light: #2a2b40;--shadow-dark: #14141f}}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Inter,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased}body{display:flex;align-items:center;justify-content:center;padding:2rem}#root{display:flex;align-items:center;justify-content:center;width:100%}.card{background:var(--bg);border-radius:32px;padding:4rem 5rem;box-shadow:12px 12px 32px var(--shadow-dark),-12px -12px 32px var(--shadow-light);text-align:center;max-width:480px}.nav{display:flex;justify-content:center;gap:.75rem;margin-bottom:2.5rem}.nav-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;cursor:pointer;text-decoration:none;font:inherit;font-size:.875rem;font-weight:600;letter-spacing:.01em;color:var(--fg);opacity:.75;background:var(--bg);padding:.5rem 1.25rem;border-radius:999px;box-shadow:5px 5px 12px var(--shadow-dark),-5px -5px 12px var(--shadow-light);transition:box-shadow .18s ease,opacity .18s ease,color .18s ease}.nav-btn:hover{opacity:1}.nav-btn:active{box-shadow:inset 4px 4px 9px var(--shadow-dark),inset -4px -4px 9px var(--shadow-light)}.nav-btn--active{opacity:1;color:var(--accent);box-shadow:inset 4px 4px 9px var(--shadow-dark),inset -4px -4px 9px var(--shadow-light)}.about-text{margin:0 0 1rem;line-height:1.6}.about-text:last-child{margin-bottom:0}.logo{width:96px;height:96px;margin:0 auto 2rem;border-radius:50%;background:var(--bg);box-shadow:inset 6px 6px 14px var(--shadow-dark),inset -6px -6px 14px var(--shadow-light);display:flex;align-items:center;justify-content:center;font-size:2.25rem;font-weight:600;color:var(--accent);letter-spacing:-.04em}h1{margin:0 0 .75rem;font-size:2rem;font-weight:600;letter-spacing:-.02em}p{margin:0;font-size:1rem;opacity:.7;letter-spacing:.01em}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin:0 4px;animation:pulse 1.4s ease-in-out infinite}.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,80%,to{opacity:.3;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.input-bar{display:flex;align-items:center;gap:.5rem;margin-top:1rem;padding:.35rem .4rem .35rem 1.1rem;border-radius:999px;background:var(--bg);box-shadow:inset 4px 4px 9px var(--shadow-dark),inset -4px -4px 9px var(--shadow-light)}.input-bar--start{margin-top:2.25rem}.field{flex:1;min-width:0;border:none;outline:none;background:transparent;color:var(--fg);font:inherit;font-size:.95rem}.field::placeholder{color:var(--fg);opacity:.4}.field-send{flex:none;width:38px;height:38px;border:none;cursor:pointer;border-radius:50%;background:var(--bg);color:var(--accent);font-size:1.15rem;line-height:1;display:flex;align-items:center;justify-content:center;box-shadow:4px 4px 9px var(--shadow-dark),-4px -4px 9px var(--shadow-light);transition:box-shadow .15s ease}.field-send:active{box-shadow:inset 3px 3px 7px var(--shadow-dark),inset -3px -3px 7px var(--shadow-light)}.card--chat{width:100%;max-width:480px;height:min(72vh,560px);padding:1.5rem;display:flex;flex-direction:column;text-align:left}.chat-head{display:flex;align-items:center;gap:.7rem;padding-bottom:1rem}.chat-back{flex:none;width:34px;height:34px;border-radius:50%;text-decoration:none;color:var(--fg);opacity:.8;font-size:1.05rem;display:flex;align-items:center;justify-content:center;background:var(--bg);box-shadow:4px 4px 9px var(--shadow-dark),-4px -4px 9px var(--shadow-light);transition:box-shadow .15s ease}.chat-back:active{box-shadow:inset 3px 3px 7px var(--shadow-dark),inset -3px -3px 7px var(--shadow-light)}.chat-title{font-weight:600;letter-spacing:-.01em;color:var(--accent)}.chat-signout{margin-left:auto;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;cursor:pointer;background:transparent;color:var(--fg);opacity:.55;font:inherit;font-size:.8rem;padding:.25rem .4rem;transition:opacity .15s ease}.chat-signout:hover{opacity:.9}.google-btn{display:inline-flex;align-items:center;gap:.6rem;margin:2rem auto 0;padding:.7rem 1.4rem;border:none;cursor:pointer;border-radius:999px;font:inherit;font-size:.92rem;font-weight:600;color:var(--fg);background:var(--bg);box-shadow:6px 6px 14px var(--shadow-dark),-6px -6px 14px var(--shadow-light);transition:box-shadow .16s ease}.google-btn:hover{box-shadow:7px 7px 16px var(--shadow-dark),-7px -7px 16px var(--shadow-light)}.google-btn:active{box-shadow:inset 5px 5px 11px var(--shadow-dark),inset -5px -5px 11px var(--shadow-light)}.google-btn svg{display:block}.chat-log{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:.55rem;padding:.25rem .3rem}.bubble{max-width:80%;margin:0;padding:.6rem .9rem;border-radius:16px;font-size:.9rem;line-height:1.45}.bubble--user{align-self:flex-end;color:var(--fg);background:var(--bg);box-shadow:4px 4px 10px var(--shadow-dark),-4px -4px 10px var(--shadow-light)}.bubble--note{align-self:center;max-width:100%;font-size:.76rem;opacity:.5;text-align:center}@media(max-width:520px){.card{padding:3rem 2rem;border-radius:24px}.card--chat{padding:1.25rem;height:min(78vh,600px)}h1{font-size:1.5rem}}