:root{
  --blue:#2457E8;
  --blue-light:#4F7DFF;
  --blue-dark:#12358C;
  --blue-tint:#EEF3FF;
  --black:#0A0C10;
  --white:#FFFFFF;
  --radius:16px;
  --shadow-sm:0 4px 16px rgba(20,30,60,.06);
  --shadow:0 16px 40px rgba(20,30,60,.10);
  --shadow-blue:0 16px 36px rgba(36,87,232,.28);
  --container:1180px;
  --ease:cubic-bezier(.16,1,.3,1);

  --bg:#FFFFFF;
  --bg-alt:#F6F8FC;
  --surface:#FFFFFF;
  --text:#0A0C10;
  --text-muted:#5B6270;
  --border:#E4E7EC;
  --header-bg:rgba(255,255,255,.78);
  --header-border:rgba(228,231,236,.8);
}

:root[data-theme="dark"]{
  --bg:#0B0D12;
  --bg-alt:#101319;
  --surface:#161920;
  --text:#F2F4F8;
  --text-muted:#9BA1AF;
  --border:#262A34;
  --blue-tint:#1A2340;
  --header-bg:rgba(11,13,18,.72);
  --header-border:rgba(255,255,255,.08);
  --shadow-sm:0 4px 16px rgba(0,0,0,.28);
  --shadow:0 16px 40px rgba(0,0,0,.4);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Poppins',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease, color .25s ease;
}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:700;line-height:1.15;letter-spacing:-.01em;}
p{margin:0 0 1em;color:var(--text-muted);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.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;
}

/* Scroll progress */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--blue-light),var(--blue));
  z-index:200;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 26px;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  cursor:pointer;
  border:2px solid transparent;
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0) scale(.98);}
.btn-primary{background:linear-gradient(135deg,var(--blue-light),var(--blue));color:var(--white);box-shadow:0 6px 18px rgba(36,87,232,.30);}
.btn-primary:hover{box-shadow:var(--shadow-blue);}
.btn-outline{background:transparent;border-color:var(--text);color:var(--text);}
.btn-outline:hover{background:var(--text);color:var(--bg);}
.btn-large{padding:17px 34px;font-size:1.05rem;}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--header-bg);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--header-border);
  transition:box-shadow .25s ease, background .25s ease, border-color .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(10,15,30,.08);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:78px;
}
.logo{display:flex;align-items:center;gap:2px;font-weight:800;font-size:1.4rem;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--blue-light),var(--blue-dark));
  color:var(--white);display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;margin-right:6px;
  box-shadow:0 4px 12px rgba(36,87,232,.35);
}
.logo-text{color:var(--text);}

.main-nav{display:flex;gap:32px;}
.main-nav a{font-weight:500;color:var(--text);position:relative;padding:4px 0;font-size:.95rem;transition:color .15s ease;}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--blue);transition:width .2s var(--ease);
}
.main-nav a:hover{color:var(--blue);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--blue);}
.main-nav a.active::after{width:100%;}

.header-actions{display:flex;align-items:center;gap:14px;}

.theme-toggle{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:border-color .2s ease, transform .2s ease, background .2s ease;
}
.theme-toggle:hover{border-color:var(--blue);transform:rotate(-12deg);}
.theme-toggle .icon-moon{display:none;}
:root[data-theme="dark"] .theme-toggle .icon-sun{display:none;}
:root[data-theme="dark"] .theme-toggle .icon-moon{display:block;}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:32px;height:32px;background:none;border:none;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--text);border-radius:2px;}

/* Hero */
.hero{
  position:relative;
  padding:92px 0 76px;
  text-align:center;
  overflow:hidden;
  isolation:isolate;
  color:var(--white);
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
}
.hero-bg img{
  width:100%;height:100%;object-fit:cover;object-position:center 60%;
}
.hero-bg::after{
  content:'';
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(8,12,24,.72) 0%, rgba(10,16,36,.68) 45%, rgba(6,10,22,.86) 100%),
    linear-gradient(100deg, rgba(10,20,60,.55) 0%, rgba(10,20,60,0) 55%);
}
.hero-glow{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(560px circle at var(--x,50%) var(--y,25%), rgba(111,160,255,.22), transparent 60%);
}
.hero-inner{max-width:760px;position:relative;z-index:1;}

.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(6px);
  color:var(--white);
  padding:8px 18px;border-radius:999px;
  font-size:.85rem;font-weight:500;
  margin-bottom:24px;
}

.hero h1{font-size:clamp(2.4rem,5.4vw,3.75rem);color:var(--white);text-shadow:0 2px 24px rgba(0,0,0,.25);}
.hero h1 span{
  background:linear-gradient(120deg,#6FA0FF,#9FC0FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:1.18rem;max-width:600px;margin:0 auto 36px;color:rgba(255,255,255,.86);}

.search-bar{
  display:flex;
  align-items:center;
  gap:4px;
  background:rgba(255,255,255,.97);
  padding:8px;
  border-radius:999px;
  box-shadow:0 20px 50px rgba(6,10,22,.35);
  max-width:660px;
  margin:0 auto;
  transition:box-shadow .2s ease;
}
.search-bar:focus-within{box-shadow:0 20px 50px rgba(6,10,22,.35), 0 0 0 3px rgba(79,125,255,.45);}
.search-field{flex:1;min-width:0;}
.search-bar input{
  width:100%;border:none;outline:none;padding:13px 20px;
  font-family:inherit;font-size:.95rem;border-radius:999px;background:transparent;
  color:var(--black);
}
.search-divider{width:1px;height:26px;background:var(--gray-300,#E4E7EC);}
.search-bar .btn{flex-shrink:0;}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease), transform .6s var(--ease);}
.reveal.in{opacity:1;transform:translateY(0);}
.cat-grid .reveal:nth-child(2){transition-delay:.05s;}
.cat-grid .reveal:nth-child(3){transition-delay:.1s;}
.cat-grid .reveal:nth-child(4){transition-delay:.15s;}
.cat-grid .reveal:nth-child(6){transition-delay:.05s;}
.cat-grid .reveal:nth-child(7){transition-delay:.1s;}
.cat-grid .reveal:nth-child(8){transition-delay:.15s;}
.steps .reveal:nth-child(2){transition-delay:.1s;}
.steps .reveal:nth-child(3){transition-delay:.2s;}
.faq-list .reveal:nth-child(2){transition-delay:.05s;}
.faq-list .reveal:nth-child(3){transition-delay:.1s;}
.faq-list .reveal:nth-child(4){transition-delay:.15s;}

/* Categories */
.categorias{padding:100px 0;background:var(--bg);}
.categorias h2, .como-funciona h2, .salao h2, .faq h2{
  text-align:center;font-size:clamp(1.9rem,4vw,2.5rem);color:var(--text);
}
.section-sub{text-align:center;max-width:520px;margin:0 auto 56px;font-size:1.05rem;color:var(--text-muted);}

.cat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.cat-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px 22px;
  text-align:center;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
  transform-style:preserve-3d;
  will-change:transform;
}
.cat-card:hover{
  box-shadow:var(--shadow);
  border-color:transparent;
  background:linear-gradient(180deg,var(--surface),var(--blue-tint));
}
.cat-icon{
  width:60px;height:60px;margin:0 auto 16px;
  border-radius:18px;
  background:var(--blue-tint);
  display:flex;align-items:center;justify-content:center;
  font-size:1.7rem;
  transition:transform .2s var(--ease), background .2s ease;
}
.cat-card:hover .cat-icon{transform:scale(1.08) rotate(-4deg) translateZ(20px);background:var(--surface);box-shadow:var(--shadow-sm);}
.cat-card h3{font-size:1.05rem;margin-bottom:4px;color:var(--text);}
.cat-card p{font-size:.88rem;margin:0;color:var(--text-muted);}

/* Como funciona */
.como-funciona{
  position:relative;
  background:radial-gradient(circle at 15% 20%, #16224F 0%, var(--black) 55%);
  color:var(--white);padding:104px 0;
  overflow:hidden;
}
.como-funciona h2{color:var(--white);}
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:56px;
  position:relative;
}
.step{text-align:center;position:relative;}
.step-num{
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue-light),var(--blue));
  color:var(--white);display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:1.25rem;margin:0 auto 18px;
  box-shadow:0 0 0 8px rgba(36,87,232,.14);
}
.step h3{color:var(--white);}
.step p{color:#AEB4C4;margin:0;font-size:.96rem;}

/* Salao CTA */
.salao{padding:100px 0;background:var(--bg);}
.salao-inner{
  display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center;
  background:
    linear-gradient(120deg, rgba(8,10,20,.86) 0%, rgba(10,16,40,.78) 60%, rgba(8,10,20,.9) 100%),
    url('salon-interior.jpg') center/cover;
  border-radius:28px;
  padding:60px;
}
.salao-copy h2{font-size:clamp(1.7rem,3.4vw,2.3rem);color:var(--white);}
.salao-copy p{font-size:1.08rem;color:rgba(255,255,255,.82);}
.salao-benefits{display:flex;flex-direction:column;gap:14px;}
.benefit{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:17px 20px;
  font-weight:500;
  color:var(--text);
  display:flex;align-items:center;gap:14px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s var(--ease);
}
.benefit:hover{transform:translateX(4px);}
.benefit-icon{
  width:38px;height:38px;flex-shrink:0;border-radius:10px;
  background:var(--blue-tint);
  display:flex;align-items:center;justify-content:center;
  font-size:1.05rem;
}

/* FAQ */
.faq{padding:100px 0;background:var(--bg-alt);}
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:6px 24px;
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:var(--blue);}
.faq-item summary{
  cursor:pointer;
  padding:18px 0;
  font-weight:600;
  color:var(--text);
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'+';
  flex-shrink:0;
  width:26px;height:26px;border-radius:50%;
  background:var(--blue-tint);color:var(--blue);
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;font-weight:400;
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(135deg);}
.faq-item p{padding-bottom:20px;margin:0;color:var(--text-muted);}

/* Back to top */
.back-to-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue-light),var(--blue));
  color:var(--white);border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-blue);
  opacity:0;transform:translateY(14px) scale(.9);pointer-events:none;
  transition:opacity .25s var(--ease), transform .25s var(--ease);
}
.back-to-top.show{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;}
.back-to-top:hover{transform:translateY(-3px) scale(1);}

/* Footer */
.site-footer{background:#12141A;color:#B8BDC9;padding:68px 0 0;position:relative;}
.site-footer::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--blue),transparent);
}
.footer-inner{
  display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:32px;padding-bottom:48px;
}
.footer-brand .logo-text{color:var(--white);}
.footer-brand p{max-width:280px;color:#8A90A0;}
.footer-col h4{color:var(--white);margin-bottom:16px;font-size:.95rem;}
.footer-col a{display:block;margin-bottom:10px;color:#B8BDC9;transition:color .15s ease;}
.footer-col a:hover{color:var(--white);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;
  font-size:.85rem;
  text-align:center;
  color:#7A8092;
}
.photo-credits{margin:6px 0 0;font-size:.75rem;color:#5C6172;}
.photo-credits a{color:#8A90A0;text-decoration:underline;}
.photo-credits a:hover{color:var(--white);}

/* Responsive */
@media (max-width:900px){
  .main-nav{
    position:fixed;top:78px;left:0;right:0;
    background:var(--surface);
    flex-direction:column;
    padding:20px 24px;
    gap:20px;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow);
    transform:translateY(-150%);
    transition:transform .2s var(--ease);
  }
  .main-nav.open{transform:translateY(0);}
  .main-nav a::after{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-outline{display:none;}
  .hero{padding:96px 0 80px;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;gap:44px;}
  .salao-inner{grid-template-columns:1fr;padding:36px 24px;}
  .footer-inner{grid-template-columns:1fr;gap:32px;}
  .search-bar{flex-direction:column;border-radius:20px;padding:12px;gap:10px;}
  .search-divider{display:none;}
  .search-bar .btn{width:100%;}
  .back-to-top{right:16px;bottom:16px;}
}