/* ==== Reset & Base ==== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,sans-serif;
  background:#fafbfc;color:#1a1a2e;line-height:1.6;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

:root{
  --grad: linear-gradient(135deg,#7c3aed 0%,#3b82f6 100%);
  --grad-soft: linear-gradient(135deg,rgba(124,58,237,.08),rgba(59,130,246,.08));
  --bg:#fafbfc;
  --bg-2:#f5f6f8;
  --card:#ffffff;
  --border:rgba(0,0,0,.08);
  --text:#1a1a2e;
  --muted:#64748b;
  --primary:#7c3aed;
  --accent:#3b82f6;
}

/* ==== Header ==== */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.85);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:background .3s,box-shadow .3s;
}
.header.scrolled{background:rgba(255,255,255,.98);box-shadow:0 4px 20px rgba(0,0,0,.1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:1.1rem}
.brand img{width:36px;height:36px;border-radius:8px}
.brand strong{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav{display:flex;gap:8px}
.nav-link{padding:8px 14px;border-radius:8px;font-size:.95rem;color:var(--muted);transition:color .2s,background .2s;position:relative}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary);background:var(--grad-soft)}
.hamburger{display:none;flex-direction:column;gap:5px;padding:10px}
.hamburger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,opacity .3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ==== Hero ==== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:100px 0 60px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background:url('bg.jpg') center/cover no-repeat;
  opacity:.25;z-index:0;
}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(250,251,252,.6),var(--bg))}
.hero-inner{position:relative;z-index:1;max-width:1200px;width:100%;margin:0 auto;padding:0 20px}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-text{text-align:left}
.hero-image{display:flex;justify-content:center;align-items:center}
.hero-image img{width:100%;max-width:520px;height:auto;filter:drop-shadow(0 20px 40px rgba(124,58,237,.15));animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:24px}.hero-text{text-align:center}.hero-image{order:-1}.hero-image img{max-width:340px}}
.hero h1{font-size:clamp(2rem,5vw,3.8rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;color:var(--text)}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin:24px auto;font-size:clamp(1rem,1.6vw,1.2rem);color:var(--muted);max-width:640px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:32px 0}
.btn{display:inline-block;padding:14px 28px;border-radius:12px;font-weight:600;font-size:1rem;transition:transform .2s,box-shadow .2s,opacity .2s;cursor:pointer}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(124,58,237,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(124,58,237,.5)}
.btn-ghost{background:rgba(255,255,255,.8);color:var(--primary);border:1px solid rgba(124,58,237,.3)}
.btn-ghost:hover{background:rgba(124,58,237,.05);border-color:var(--primary)}
.online-badge{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border:1px solid var(--border);border-radius:999px;background:#fff;font-size:.9rem;color:var(--muted);box-shadow:0 2px 8px rgba(0,0,0,.05)}
.online-badge .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.2);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(34,197,94,.2)}50%{box-shadow:0 0 0 8px rgba(34,197,94,.05)}}

/* ==== Sections ==== */
.section{padding:80px 0}
.section-alt{background:var(--bg-2)}
.section h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:700;margin-bottom:12px;letter-spacing:-.01em;color:var(--text)}
.section .sub{color:var(--muted);margin-bottom:40px;font-size:1.05rem}

/* ==== Chat card ==== */
.chat-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px;max-width:760px;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.nick-form{display:flex;gap:12px;flex-wrap:wrap}
.nick-form input{
  flex:1;min-width:200px;padding:14px 18px;border-radius:12px;
  background:#f8f9fa;border:1px solid var(--border);
  color:var(--text);font-size:1rem;outline:none;transition:border-color .2s,background .2s;
}
.nick-form input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(124,58,237,.1)}
.error{color:#dc2626;margin-top:12px;min-height:1.2em;font-size:.9rem}
.chat-frame{margin-top:24px;border-radius:14px;overflow:hidden;border:1px solid var(--border);height:560px;box-shadow:0 4px 16px rgba(0,0,0,.1)}
.chat-frame iframe{width:100%;height:100%;border:0;background:#fff}

/* ==== Chat Section Full Screen ==== */
.section-chat{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding:80px 0;
  overflow:hidden;
}
.chat-bg{
  position:absolute;
  inset:0;
  background:url('hero.png') center/cover no-repeat;
  z-index:0;
}
.chat-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(250,251,252,.88);
}
.chat-content{
  position:relative;
  z-index:1;
  width:100%;
}

/* ==== Two col ==== */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.two-col p{margin-bottom:12px;color:var(--muted)}
.features{list-style:none;display:flex;flex-direction:column;gap:18px}
.features li{display:flex;gap:16px;padding:18px;background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.features span{font-size:1.6rem}
.features h3{font-size:1.05rem;margin-bottom:4px;color:var(--text)}
.features p{color:var(--muted);font-size:.92rem;margin:0}

/* ==== Rooms ==== */
.rooms{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.room{
  display:block;padding:22px;border-radius:16px;
  transition:transform .25s,box-shadow .25s;
  position:relative;overflow:hidden;
  min-height:180px;color:#fff;
  background-size:cover;background-position:center;
  box-shadow:0 4px 14px rgba(0,0,0,.15);
  isolation:isolate;
}
.room::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(180deg,rgba(0,0,0,.25) 0%,rgba(0,0,0,.7) 100%);
  transition:background .3s;
}
.room:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(0,0,0,.3)}
.room:hover::before{background:linear-gradient(180deg,rgba(124,58,237,.45) 0%,rgba(0,0,0,.75) 100%)}
.room>*{position:relative;z-index:1}
.room h3{font-size:1.3rem;color:#fff;margin-bottom:6px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.room p{color:rgba(255,255,255,.92);font-size:.92rem;margin-bottom:10px;text-shadow:0 1px 4px rgba(0,0,0,.5)}
.room .users{font-size:.8rem;color:#4ade80;font-weight:700;text-shadow:0 1px 4px rgba(0,0,0,.5)}
.room-brasil{background-image:url('rooms/brasil.jpg')}
.room-amizade{background-image:url('rooms/amizade.jpg')}
.room-diversao{background-image:url('rooms/diversao.jpg')}
.room-namoro{background-image:url('rooms/namoro.jpg')}
.room-ajuda{background-image:url('rooms/ajuda.jpg')}
.room-sergipe{background-image:url('rooms/sergipe.jpg')}
.room-rio{background-image:url('rooms/rio.jpg')}
.room-ceara{background-image:url('rooms/ceara.jpg')}

/* ==== FAQ ==== */
.faq-wrap{max-width:800px}
.faq details{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  margin-bottom:12px;padding:18px 22px;transition:border-color .2s;box-shadow:0 2px 8px rgba(0,0,0,.04);
}
.faq details[open]{border-color:rgba(124,58,237,.4)}
.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--text)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--primary);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);margin-top:12px}

/* ==== Footer ==== */
.footer{background:#f0f1f4;border-top:1px solid var(--border);padding:30px 0;margin-top:40px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:.9rem}
.footer-nav{display:flex;gap:24px}
.footer-nav a:hover{color:var(--primary)}

/* ==== Floating CTA ==== */
.float-cta{
  position:fixed;bottom:20px;right:20px;z-index:90;
  background:var(--grad);color:#fff;padding:14px 26px;border-radius:999px;
  font-weight:700;box-shadow:0 10px 30px rgba(124,58,237,.4);
  transition:transform .2s;
}
.float-cta:hover{transform:scale(1.05)}

/* ==== Legal pages ==== */
.legal{padding:120px 0 60px;max-width:820px;margin:0 auto}
.legal h1{font-size:2rem;margin-bottom:20px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.legal h2{font-size:1.3rem;margin:28px 0 10px;color:var(--text)}
.legal p,.legal li{color:var(--muted);margin-bottom:10px}
.legal ul{padding-left:22px}

/* ==== Responsive ==== */
@media (max-width:860px){
  .two-col{grid-template-columns:1fr;gap:30px}
}
@media (max-width:768px){
  .hamburger{display:flex}
  .nav{
    position:fixed;top:64px;left:0;right:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(12px);
    flex-direction:column;padding:20px;gap:6px;
    transform:translateY(-120%);transition:transform .3s;
    border-bottom:1px solid var(--border);
    box-shadow:0 4px 20px rgba(0,0,0,.1);
  }
  .nav.open{transform:translateY(0)}
  .nav-link{padding:14px;border-radius:10px;font-size:1rem}
  .section{padding:60px 0}
  .chat-card{padding:22px}
  .chat-frame{height:480px}
  .float-cta{bottom:16px;right:16px;padding:12px 22px;font-size:.95rem}
  .footer-inner{flex-direction:column;text-align:center}
}
@media (max-width:420px){
  .hero{min-height:90vh;padding:90px 0 40px}
  .hero-cta .btn{width:100%}
}