:root{--blue:#1565d8;--blue-dark:#0e4ca5;--ink:#142033;--muted:#607086;--line:#dfe7f1;--soft:#f5f8fc;--white:#fff;--green:#20a866;--shadow:0 18px 50px rgba(27,60,104,.12);--radius:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--white);line-height:1.6}a{color:inherit}.container{width:min(1160px,calc(100% - 36px));margin-inline:auto}.narrow{width:min(820px,calc(100% - 36px));margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;z-index:999;padding:10px 14px;background:#111;color:#fff;border-radius:8px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(223,231,241,.85)}.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}.brand-mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,var(--blue),#3186f7);color:#fff;font-weight:800;box-shadow:0 8px 20px rgba(21,101,216,.25)}.brand-text{display:flex;align-items:baseline}.brand-text strong{font-size:1.07rem}.brand-text small{font-weight:800;color:var(--blue);font-size:.95rem}.site-nav{display:flex;align-items:center;gap:22px}.site-nav a{text-decoration:none;font-weight:650;font-size:.94rem;color:#314258}.site-nav a:hover{color:var(--blue)}.nav-cta{background:var(--blue);color:#fff!important;padding:10px 16px;border-radius:12px}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 12px;font-weight:700}.hero{padding:72px 0 52px;background:radial-gradient(circle at 85% 5%,rgba(49,134,247,.14),transparent 32%),linear-gradient(180deg,#fff,#f8fbff)}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:60px}.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-weight:850;color:var(--blue);margin-bottom:14px}.hero h1{font-size:clamp(2.55rem,5vw,4.5rem);line-height:1.03;letter-spacing:-.045em;margin:0 0 22px}.hero-lead{font-size:1.18rem;color:var(--muted);max-width:650px;margin:0 0 28px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:13px;text-decoration:none;font-weight:800;transition:.18s ease}.button:hover{transform:translateY(-1px)}.button-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px rgba(21,101,216,.2)}.button-primary:hover{background:var(--blue-dark)}.button-secondary{background:#fff;border:1px solid var(--line);color:#25364c}.button-white{background:#fff;color:var(--blue)}.full{width:100%}.trust-row{display:flex;gap:18px;flex-wrap:wrap;color:#506176;font-size:.9rem;margin-top:20px}.chat-preview{background:#fff;border:1px solid #dce7f4;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);transform:rotate(.25deg)}.preview-top{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;background:var(--blue);color:#fff}.preview-top span{font-size:.88rem;opacity:.9}.preview-room{padding:10px 16px;background:#eef5ff;border-bottom:1px solid #d9e5f5;font-size:.88rem;font-weight:750}.preview-room span{color:var(--green)}.preview-body{display:grid;grid-template-columns:1fr 130px;min-height:290px}.preview-messages{padding:18px;display:flex;flex-direction:column;gap:14px}.msg{display:flex;flex-direction:column;align-items:flex-start;gap:2px}.msg b{font-size:.83rem;color:var(--blue)}.msg span{background:#f3f6fa;padding:9px 11px;border-radius:12px;font-size:.88rem}.preview-users{border-left:1px solid var(--line);padding:16px 12px;background:#fbfdff;display:flex;flex-direction:column;gap:10px;font-size:.78rem}.preview-users strong{font-size:.82rem;margin-bottom:3px}.preview-users span::first-letter{color:var(--green)}.preview-compose{border-top:1px solid var(--line);padding:12px 16px;color:#8795a8;font-size:.88rem;display:flex;justify-content:space-between}.preview-compose span{color:var(--blue)}.section{padding:78px 0}.section-soft{background:var(--soft)}.section-heading{text-align:center;max-width:760px;margin:0 auto 40px}.section-heading h2,.split h2,.cta-inner h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.12;letter-spacing:-.03em;margin:0 0 14px}.section-heading p,.split p{color:var(--muted);margin:0}.cards{display:grid;gap:20px}.cards.three{grid-template-columns:repeat(3,1fr)}.card{padding:26px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 8px 24px rgba(24,63,112,.05)}.card-icon{width:38px;height:38px;border-radius:10px;background:#eaf3ff;color:var(--blue);font-weight:900;display:grid;place-items:center;margin-bottom:18px}.card h3{margin:0 0 8px;font-size:1.12rem}.card p{margin:0;color:var(--muted)}.split{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}.check-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:10px}.check-list li{position:relative;padding-left:28px}.check-list li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:900}.feature-panel{padding:30px;background:#fff;border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow)}.feature-panel strong{font-size:1.3rem}.feature-panel p{margin:8px 0 20px}.city-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.city-grid a{text-decoration:none;padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff;display:flex;flex-direction:column;transition:.18s ease}.city-grid a:hover{border-color:#a9c8f3;transform:translateY(-2px);box-shadow:0 12px 28px rgba(22,64,113,.08)}.city-grid strong{font-size:1.05rem}.city-grid span{font-size:.88rem;color:var(--muted)}.faq-section details{border-bottom:1px solid var(--line);padding:0}.faq-section summary{cursor:pointer;padding:20px 0;font-weight:800}.faq-section details p{color:var(--muted);margin:-6px 0 22px}.cta-band{padding:54px 0;background:linear-gradient(120deg,var(--blue-dark),var(--blue));color:#fff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}.cta-inner h2{margin:0;max-width:730px}.eyebrow.light{color:#dceaff;margin-bottom:8px}.site-footer{padding:58px 0 24px;background:#0d1b2d;color:#d7e2ef}.footer-grid{display:grid;grid-template-columns:1.6fr .7fr .7fr;gap:44px}.brand-footer{color:#fff}.footer-grid p{max-width:480px;color:#9fb0c4}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:8px}.footer-grid strong{color:#fff;margin-bottom:6px}.footer-grid a{text-decoration:none;color:#b8c7d8}.footer-grid a:hover{color:#fff}.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:20px;color:#8ea0b6;font-size:.88rem}.content-hero{padding:64px 0 36px;background:linear-gradient(180deg,#f6faff,#fff)}.content-hero .container{max-width:900px;text-align:center}.content-hero h1{font-size:clamp(2.25rem,5vw,3.8rem);line-height:1.06;letter-spacing:-.04em;margin:0 0 18px}.content-hero p{font-size:1.1rem;color:var(--muted);margin:0 auto 26px;max-width:760px}.content-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:start}.prose h2{font-size:1.7rem;line-height:1.2;margin:0 0 14px}.prose h3{margin-top:28px}.prose p{color:#516176}.info-card{position:sticky;top:96px;padding:26px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}.info-card h3{margin:0 0 8px}.info-card p{color:var(--muted);margin:0 0 18px}.mini-points{display:grid;gap:10px;margin:18px 0 24px}.mini-points span{display:flex;gap:8px;color:#44556b}.mini-points span::before{content:"✓";color:var(--green);font-weight:900}.notice{padding:18px 20px;border:1px solid #cfe0f5;background:#f3f8ff;border-radius:14px;color:#334b68}.security-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px}.security-grid .card{height:100%}@media(max-width:880px){.site-nav{display:none;position:absolute;left:18px;right:18px;top:64px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.menu-toggle{display:block}.hero-grid,.split,.content-grid{grid-template-columns:1fr}.hero{padding-top:48px}.chat-preview{max-width:680px;width:100%;margin-inline:auto}.cards.three,.city-grid{grid-template-columns:repeat(2,1fr)}.feature-panel{max-width:620px}.info-card{position:static}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}@media(max-width:600px){.container,.narrow{width:min(100% - 28px,1160px)}.nav-wrap{height:64px}.brand-mark{width:36px;height:36px}.hero{padding:40px 0 34px}.hero h1{font-size:2.55rem}.hero-lead{font-size:1.04rem}.hero-actions .button{width:100%}.trust-row{gap:9px 14px}.preview-body{grid-template-columns:1fr 108px;min-height:250px}.preview-users{font-size:.7rem;padding:12px 8px}.msg span{font-size:.8rem}.section{padding:58px 0}.cards.three,.city-grid,.security-grid{grid-template-columns:1fr}.cta-inner{align-items:flex-start;flex-direction:column}.cta-inner .button{width:100%}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column;gap:4px}}


.nickname-entry{max-width:650px;margin:26px 0 0;padding:18px;background:#fff;border:1px solid #dce7f4;border-radius:18px;box-shadow:0 12px 34px rgba(27,60,104,.09)}
.nickname-entry label{display:block;font-weight:850;font-size:.95rem;margin-bottom:9px;color:#25364c}
.nickname-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
.nickname-input{width:100%;height:50px;border:1px solid #cbd8e8;border-radius:13px;padding:0 15px;font:inherit;font-size:1rem;color:var(--ink);background:#fff;outline:none;transition:border-color .18s ease,box-shadow .18s ease}
.nickname-input::placeholder{color:#8c9aab}
.nickname-input:focus{border-color:#74a9ec;box-shadow:0 0 0 4px rgba(21,101,216,.10)}
.nickname-input[aria-invalid="true"]{border-color:#d94c4c;box-shadow:0 0 0 4px rgba(217,76,76,.08)}
.nickname-submit{border:0;cursor:pointer;font:inherit;white-space:nowrap}
.nickname-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:8px;min-height:20px}
.nickname-meta small{font-size:.78rem;color:#75859a}
.nickname-error{color:#c33838!important;font-weight:700;text-align:right}
.hero-actions-secondary{margin-top:14px}
@media(max-width:600px){.nickname-entry{padding:15px}.nickname-row{grid-template-columns:1fr}.nickname-submit{width:100%}.nickname-meta{align-items:flex-start;flex-direction:column;gap:3px}.nickname-error{text-align:left}.hero-actions-secondary .button{width:100%}}


/* V1.3 - Entrada de nickname prioritaria */
.nickname-entry-primary{position:relative;max-width:700px;margin-top:24px;padding:22px 22px 18px;border:2px solid #bcd6f7;box-shadow:0 18px 44px rgba(21,101,216,.14);background:linear-gradient(180deg,#fff,#fbfdff)}
.nickname-entry-primary::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;border-radius:18px 18px 0 0;background:linear-gradient(90deg,var(--blue),#4b98f4)}
.nickname-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:12px}
.nickname-title-row label{font-size:1.08rem;line-height:1.3;margin:2px 0 0;color:#18314f}
.nickname-kicker{display:block;font-size:.69rem;letter-spacing:.13em;font-weight:900;color:var(--blue);margin-bottom:3px}
.nickname-live{flex:0 0 auto;color:var(--green);font-size:.79rem;font-weight:850;background:#eefaf4;border:1px solid #c9edd9;border-radius:999px;padding:5px 9px}
.nickname-entry-primary .nickname-input{height:56px;font-size:1.08rem;border-width:2px}
.nickname-entry-primary .nickname-submit{min-height:56px;padding-inline:25px;font-size:1rem}
.nickname-benefits{display:flex;gap:14px;flex-wrap:wrap;padding-top:10px;margin-top:8px;border-top:1px solid #edf2f7;color:#4e6077;font-size:.82rem;font-weight:700}
.chat-preview-wrap{display:flex;flex-direction:column;align-items:stretch}
.preview-label{align-self:flex-start;margin:0 0 9px 8px;padding:5px 10px;border-radius:999px;background:#eaf3ff;color:var(--blue);font-size:.74rem;font-weight:850;letter-spacing:.03em}
.preview-note{margin:10px 10px 0;color:#718096;font-size:.79rem;text-align:center}
@media(max-width:880px){.chat-preview-wrap{margin-top:8px}.nickname-entry-primary{max-width:none}}
@media(max-width:600px){.hero-copy{text-align:left}.nickname-entry-primary{padding:18px 15px 15px;margin-top:20px}.nickname-title-row{align-items:flex-start}.nickname-live{font-size:.72rem;padding:4px 7px}.nickname-title-row label{font-size:1rem}.nickname-entry-primary .nickname-input{height:54px;font-size:1.05rem}.nickname-entry-primary .nickname-submit{min-height:54px}.nickname-benefits{gap:7px 12px}.preview-label{margin-left:0}.preview-note{text-align:left;margin-left:0}}