@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');:root{--mint:#7acac4;--mintdark:#328d89;--ink:#263b43;--muted:#789096;--pink:#f5b5bf;--cream:#fff4d5;--line:#e8f0ef;--bg:#f8fcfb}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:'DM Sans',sans-serif;color:var(--ink)}button,textarea{font:inherit}button{cursor:pointer}a{color:var(--mintdark)}.app{max-width:860px;min-height:100vh;margin:auto;background:#fff;box-shadow:0 0 80px #cde2e044}.header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 30px;border-bottom:1px solid var(--line)}.icon-button,.profile{border:0;background:#edf8f6;border-radius:14px;width:42px;height:42px;color:var(--mintdark);font-size:21px}.brand{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;letter-spacing:-1.2px;font-size:25px;text-decoration:none;color:var(--ink)}.brand-icon{color:var(--mintdark)}.city{font-size:10px;letter-spacing:1px;color:#9aacae;margin-left:5px}main{padding:35px 45px 120px}.greeting{text-align:center}.eyebrow{color:var(--mintdark);font-weight:800;font-size:11px;letter-spacing:2px}.illustration{margin:22px auto 20px;width:145px;height:125px;position:relative;display:flex;align-items:center;justify-content:center}.illustration div{height:105px;width:105px;border-radius:34px;background:#d4f2ed;display:grid;place-items:center;color:#48aaa4;font-size:57px;transform:rotate(-9deg);box-shadow:15px 13px 0 #fff2d2}.illustration span{position:absolute;font-size:24px;color:var(--pink);top:5px;left:0}.illustration span:last-child{color:#f2cb7e;left:auto;right:0;top:75px}h1,h2,h3{font-family:'Plus Jakarta Sans',sans-serif}h1{font-size:clamp(29px,5vw,43px);line-height:1.2;letter-spacing:-1.8px;margin:10px 0 15px}h1 em{font-style:normal;color:var(--mintdark)}.greeting>p{max-width:500px;margin:0 auto 32px;line-height:1.7;color:var(--muted);font-size:15px}.question{border:1px solid #dbeae8;border-radius:22px;padding:18px;background:white;box-shadow:0 14px 40px #b6d8d522}.question label{font-weight:800;font-size:13px}.input-row{display:flex;align-items:end;gap:10px;margin-top:10px}.input-row textarea{resize:vertical;min-height:68px;flex:1;min-width:0;border:0;outline:0;color:var(--ink);line-height:1.5}.input-row textarea::placeholder{color:#a5b5b7}.input-row button{border:0;background:var(--mint);border-radius:15px;width:46px;height:46px;font-size:25px;color:white}.input-foot{display:flex;justify-content:space-between;gap:8px;margin-top:10px;color:#95aaa9;font-size:11px}.section-heading{margin:36px 0 18px}.section-heading h2{font-size:19px;letter-spacing:-.5px;margin:0 0 5px}.section-heading p{color:var(--muted);font-size:13px;margin:0}.topics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.topic{border:1px solid var(--line);background:#fff;border-radius:18px;padding:20px;text-align:left;display:flex;align-items:center;gap:13px;transition:transform .2s,box-shadow .2s}.topic:hover{transform:translateY(-3px);box-shadow:0 10px 25px #d7e7e588}.topic .symbol{font-size:25px;display:grid;place-items:center;width:48px;height:48px;flex:none;border-radius:14px;background:#dff5f1}.topic:nth-child(4n+2) .symbol{background:#fff1d5}.topic:nth-child(4n+3) .symbol{background:#fce5e9}.topic:nth-child(4n+4) .symbol{background:#e8eaff}.topic strong{display:block;font-size:13px;line-height:1.4}.topic small{display:block;color:#8a9c9e;font-size:11px;margin-top:3px}.safety{margin-top:24px;border-radius:18px;background:#fff8e9;padding:18px;display:flex;gap:13px}.safety>span{font-size:26px;color:#e7a2aa}.safety strong{font-size:13px}.safety p{font-size:12px;color:#8d8b81;line-height:1.6;margin:5px 0 0}.bottom-nav{position:sticky;bottom:0;background:#fff;border-top:1px solid var(--line);display:flex;justify-content:space-around;padding:11px 6px max(11px,env(safe-area-inset-bottom));z-index:5}.bottom-nav button{border:0;background:transparent;color:#9caeb0;font-size:11px;display:flex;align-items:center;flex-direction:column;gap:3px;padding:3px 15px}.bottom-nav button span{font-size:23px}.bottom-nav button.active{color:var(--mintdark);font-weight:800}.hidden{display:none!important}.back{background:none;border:0;color:var(--mintdark);padding:5px 0 25px;font-weight:700}.chat-title h1{font-size:28px;margin:8px 0 26px}.chat{display:flex;flex-direction:column;gap:16px}.bubble{padding:17px 19px;border-radius:19px;line-height:1.65;font-size:14px}.bubble.user{align-self:flex-end;background:#e4f5f2;max-width:82%;border-bottom-right-radius:5px}.bubble.assistant{background:#f7f9f8;border:1px solid var(--line);border-bottom-left-radius:5px}.bubble h3{margin:0 0 10px;font-size:16px}.bubble p{margin:0 0 10px}.bubble p:last-child{margin-bottom:0}.bubble ol{padding-left:22px}.bubble li{margin:10px 0}.source{display:block;padding:8px 0}.chip{font-size:11px;font-weight:800;color:var(--mintdark);margin-bottom:9px;display:block;letter-spacing:1px}.chat-actions{display:flex;gap:10px;flex-wrap:wrap}.btn{border:0;border-radius:14px;padding:12px 16px;background:var(--mint);color:#fff;font-weight:800;font-size:13px}.btn.secondary{background:#e9f7f4;color:var(--mintdark)}.muted{color:var(--muted);font-size:12px}.followup{margin:25px 0;text-align:center;color:var(--muted);font-size:13px}.followup button{display:block;margin:12px auto;background:var(--mint);color:#fff;border:0;border-radius:14px;padding:13px 20px;font-weight:700}.collection-card{border:1px solid var(--line);border-radius:17px;padding:18px;margin:12px 0;background:#fff}.collection-card button{border:0;background:transparent;text-align:left;color:var(--mintdark);font-weight:700}.drawer{position:fixed;inset:0;background:#263b4377;z-index:10;display:flex;align-items:stretch}.drawer-card{background:#fff;width:min(320px,85vw);padding:32px 24px;display:flex;flex-direction:column;gap:15px}.drawer-card h2 span{color:var(--mintdark)}.drawer-card p,.drawer-card small{color:var(--muted);line-height:1.6}.drawer-card>button:not(.close){border:0;background:#f1f9f7;border-radius:12px;padding:13px;text-align:left}.close{align-self:flex-end;border:0;background:none;font-size:20px}@media(max-width:600px){body{background:#fff}.app{box-shadow:none}.header{height:67px;padding:0 19px}main{padding:28px 19px 90px}.topics{gap:10px}.topic{padding:12px;gap:9px;flex-direction:column;align-items:flex-start;min-height:127px}.topic .symbol{width:42px;height:42px;font-size:22px}.topic strong{font-size:12px}.topic small{font-size:10px}.illustration{margin-top:10px}.greeting>p{font-size:14px}.bottom-nav button{padding:3px 8px}}

/* V3: navegación anclada al viewport, también en pantallas vacías */
.app{min-height:100vh;min-height:100dvh;padding-bottom:calc(82px + env(safe-area-inset-bottom,0px))}
.header{position:sticky;top:0;z-index:9;background:#fff}
.bottom-nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:860px;z-index:10;background:#fff;min-height:70px;padding:10px 6px calc(10px + env(safe-area-inset-bottom,0px));box-shadow:0 -5px 22px #263b4308}
main{padding-bottom:30px}
@media(max-width:600px){main{padding-bottom:30px}}

/* Iconografía SVG uniforme en Safari iOS, Android y escritorio */
.ui-icon{display:inline-block;width:1.35em;height:1.35em;vertical-align:middle;flex-shrink:0;stroke:currentColor;fill:none}
.brand-icon .ui-icon{width:1em;height:1em}
.bottom-nav button span .ui-icon{width:25px;height:25px}
.topic .symbol .ui-icon{width:26px;height:26px}
.illustration div .ui-icon{width:60px;height:60px}
.illustration span .ui-icon{width:23px;height:23px}
.safety>span .ui-icon{width:27px;height:27px}
.back .ui-icon{width:19px;height:19px}