:root{--forest:#063b2d;--forest-2:#0a503c;--traffic:#24d13f;--traffic-dark:#12ad30;--mint:#edf8f1;--paper:#fff;--ink:#122f27;--muted:#667a74;--line:#dce8e2}*{box-sizing:border-box}html{height:100%}body{margin:0;min-height:100%;color:var(--ink);background:#eef4f0;font-family:"DM Sans",sans-serif}.material-symbols-rounded{font-variation-settings:"FILL" 1,"wght" 400,"GRAD" 0,"opsz" 24}.app-shell{width:min(100%,980px);min-height:100vh;margin:0 auto;background:var(--paper);box-shadow:0 0 70px rgba(6,59,45,.12)}.hero{position:relative;overflow:hidden;min-height:370px;padding:28px clamp(24px,6vw,68px) 62px;color:#fff;background:var(--forest)}.topbar{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between}.wordmark{color:#fff;font:400 clamp(2.4rem,7vw,4.2rem)/1 "DM Serif Display",serif;text-decoration:none}.wordmark::after{content:"";display:inline-block;width:8px;height:14px;margin-left:-3px;border-radius:100% 0;background:var(--traffic);transform:rotate(25deg)}.back-link{display:flex;align-items:center;gap:5px;color:#cfe5dc;font-size:.8rem;font-weight:600;text-decoration:none}.back-link .material-symbols-rounded{font-size:17px}.beta-label{position:relative;z-index:2;margin:22px 0 12px;color:var(--traffic);font-size:1.15rem;font-weight:600}.green-rule{position:relative;z-index:2;display:block;width:48px;height:5px;border-radius:5px;background:var(--traffic)}.hero h1{position:relative;z-index:2;margin:26px 0 12px;max-width:650px;font-size:clamp(2rem,5vw,3.65rem);line-height:1.12;letter-spacing:-.035em}.hero>p:last-of-type{position:relative;z-index:2;max-width:620px;margin:0;color:#d9e8e3;font-size:clamp(.98rem,2vw,1.2rem);line-height:1.55}.hero-pattern{position:absolute;top:4px;right:-35px;color:rgba(36,209,63,.1);transform:rotate(-16deg)}.hero-pattern .material-symbols-rounded{font-size:260px}.conversation-panel{position:relative;display:flex;flex-direction:column;min-height:calc(100vh - 370px);margin-top:-24px;border-radius:32px 32px 0 0;background:var(--paper)}.conversation{flex:1;min-height:410px;max-height:680px;overflow-y:auto;padding:54px clamp(22px,6vw,64px) 28px;scrollbar-color:#bbd8c8 transparent}.welcome{display:flex;gap:18px;max-width:700px}.assistant-mark{display:grid;place-items:center;width:46px;height:46px;flex:0 0 auto;border-radius:50%;color:#fff;background:var(--traffic);box-shadow:0 10px 24px rgba(36,209,63,.2)}.assistant-mark .material-symbols-rounded{font-size:25px}.welcome-title{margin:0 0 8px;font-size:1.24rem;font-weight:700}.welcome p:not(.welcome-title){margin:0;color:var(--muted);line-height:1.65}.suggestions{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}.suggestions button{padding:10px 14px;border:1px solid #cfe2d8;border-radius:999px;color:var(--forest-2);background:#f8fcf9;font:600 .78rem "DM Sans",sans-serif;cursor:pointer;transition:.18s}.suggestions button:hover,.suggestions button:focus-visible{border-color:var(--traffic-dark);background:var(--mint);outline:none}.message-row{display:flex;margin:0 0 32px}.user-row{justify-content:flex-end}.user-message{max-width:78%;padding:16px 21px;border-radius:25px 25px 7px 25px;color:var(--forest);background:#edf3ef;font-size:clamp(1rem,2.4vw,1.18rem)}.assistant-row{align-items:flex-start;gap:17px}.assistant-response{max-width:700px;padding-top:2px}.assistant-response p{margin:0}.answer-text{font-size:clamp(1.15rem,3vw,1.55rem);line-height:1.62;letter-spacing:-.015em}.answer-text+p{margin-top:17px}.reference-toggle{display:inline-flex;align-items:center;gap:7px;margin-top:22px;padding:0 0 5px;border:0;border-bottom:2px dotted #58be6a;color:#087a36;background:none;font:700 .95rem "DM Sans",sans-serif;cursor:pointer}.reference-toggle .material-symbols-rounded{font-size:20px}.references{display:none;margin:15px 0 0;padding:16px 18px;border-left:3px solid var(--traffic);border-radius:0 12px 12px 0;background:#f5faf7}.references.open{display:block}.references ol{margin:0;padding-left:1.2rem}.references li{margin:7px 0;color:var(--muted);font-size:.8rem;line-height:1.45}.references a{color:#087a4a;font-weight:600}.gap-message{padding:17px 19px;border-radius:16px;color:#3e5d52;background:var(--mint);line-height:1.6}.typing{display:flex;gap:5px;padding:14px 0}.typing i{width:7px;height:7px;border-radius:50%;background:#6f8b80;animation:pulse 1s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}@keyframes pulse{50%{opacity:.25;transform:translateY(-3px)}}.composer-dock{padding:18px clamp(18px,5vw,46px) 13px;color:#fff;background:var(--traffic)}.composer{display:flex;align-items:flex-end;gap:10px;padding:8px 9px 8px 20px;border-radius:30px;background:#fff;box-shadow:0 12px 30px rgba(4,66,40,.14)}.composer textarea{width:100%;max-height:110px;resize:none;border:0;outline:0;padding:11px 0;color:var(--ink);background:transparent;font:500 1rem "DM Sans",sans-serif;line-height:1.4}.composer textarea::placeholder{color:#8d9a96}.composer button{display:grid;place-items:center;width:49px;height:49px;flex:0 0 auto;border:0;border-radius:16px;color:#fff;background:var(--forest);cursor:pointer;transition:.18s}.composer button:hover{transform:translateY(-1px);background:#0a4b39}.composer button:disabled{opacity:.55;cursor:wait}.composer-dock>p{margin:11px 0 0;text-align:center;font-size:.68rem;letter-spacing:.01em}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(min-width:760px){body{padding:28px}.app-shell{min-height:calc(100vh - 56px);border-radius:30px;overflow:hidden}.conversation-panel{min-height:520px}.conversation{max-height:620px}}@media(max-width:520px){.hero{min-height:340px;padding:23px 22px 52px}.wordmark{font-size:2.65rem}.hero-pattern .material-symbols-rounded{font-size:210px}.conversation-panel{min-height:calc(100vh - 316px);margin-top:-24px;border-radius:27px 27px 0 0}.conversation{min-height:390px;padding:40px 20px 22px}.welcome{gap:12px}.assistant-mark{width:40px;height:40px}.suggestions{flex-direction:column;align-items:flex-start}.suggestions button{font-size:.74rem}.assistant-row{gap:11px}.answer-text{font-size:1.13rem}.composer-dock{position:sticky;bottom:0;z-index:4}}