/* ==========================================================================
   DESIGN TOKENS
   ========================================================================== */

:root{
  /* colors */
  --color-bg:#0b0c0e;
  --color-bg-alt:#101216;
  --color-surface:#15171c;
  --color-surface-hover:#1b1e24;
  --color-border:rgba(255,255,255,0.08);
  --color-border-strong:rgba(255,255,255,0.16);

  --color-text:#f5f6f7;
  --color-text-secondary:#a8adb7;
  --color-text-muted:#8a90a0;

  --color-accent:#FFD000;
  --color-accent-dark:#c9a600;
  --color-accent-soft:rgba(255,208,0,0.08);

  /* glass surfaces (progressively enhanced, see @supports block) */
  --glass-header:rgba(11,12,14,0.62);
  --glass-card:rgba(21,23,28,0.5);
  --glass-card-hover:rgba(27,30,36,0.62);
  --glass-panel:rgba(21,23,28,0.55);
  --glass-sheen:linear-gradient(160deg, rgba(255,255,255,0.05), rgba(255,255,255,0) 42%);
  --glass-border:rgba(255,255,255,0.10);

  /* typography */
  --font-heading:'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body:'Inter', 'Segoe UI', sans-serif;

  /* layout */
  --container-width:1180px;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:16px;

  --header-height:72px;

  --shadow-sm:0 4px 14px rgba(0,0,0,0.35);
  --shadow-lg:0 20px 50px rgba(0,0,0,0.45);

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ==========================================================================
   RESET
   ========================================================================== */

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth; scroll-padding-top:var(--header-height);}

body{
  font-family:var(--font-body);
  background:var(--color-bg);
  color:var(--color-text-secondary);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}

h1,h2,h3{
  font-family:var(--font-heading);
  color:var(--color-text);
  font-weight:600;
  line-height:1.15;
}

h2{
  text-align:center;
  font-size:clamp(1.9rem, 1.5rem + 1.6vw, 2.75rem);
  margin-bottom:1rem;
  letter-spacing:-0.01em;
}

h3{
  font-size:1.25rem;
  margin-bottom:0.5rem;
}

p{font-size:1rem;}

a{
  color:var(--color-accent);
  text-decoration:none;
}

strong{color:var(--color-text);font-weight:600;}

.duto-yellow{color:var(--color-accent);}

.section-inner{
  max-width:var(--container-width);
  margin:0 auto;
  padding:0 1.5rem;
}

.text-left{text-align:left;}

@media(prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:0.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.001ms !important;
  }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn{
  display:inline-block;
  padding:0.85rem 1.9rem;
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:0.95rem;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
  border:1px solid transparent;
}

.btn-primary{
  background:var(--color-accent);
  color:#0b0c0e;
  margin-top:2rem;
}

.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 25px rgba(255,208,0,0.25);
}

.btn-outline{
  background:transparent;
  border-color:var(--color-border-strong);
  color:var(--color-text);
  margin-top:2.5rem;
}

.btn-outline:hover{
  border-color:var(--color-accent);
  color:var(--color-accent);
  transform:translateY(-2px);
}

.btn-sm{
  padding:0.55rem 1.3rem;
  font-size:0.85rem;
  margin-top:0;
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:var(--header-height);
  z-index:1000;
  background:rgba(11,12,14,0.94);
  border-bottom:1px solid var(--color-border);
  transition:border-color .3s var(--ease);
}

/* Note: intentionally no box-shadow here — combining a blurred box-shadow
   with backdrop-filter on the same fixed element triggers a Chromium
   compositing bug that renders the element invisible after scrolling. */
.site-header.is-scrolled{
  border-color:var(--color-border-strong);
  background:rgba(11,12,14,0.97);
}

.header-inner{
  max-width:var(--container-width);
  height:100%;
  margin:0 auto;
  padding:0 1.5rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.brand{
  font-family:var(--font-heading);
  font-size:1.15rem;
  font-weight:600;
  color:var(--color-text);
  letter-spacing:-0.01em;
}

.nav{
  display:flex;
  align-items:center;
  gap:2rem;
}

.nav a:not(.btn){
  color:var(--color-text-secondary);
  font-size:0.95rem;
  font-weight:500;
  transition:color .2s var(--ease);
}

.nav a:not(.btn):hover{
  color:var(--color-text);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:40px;
  height:40px;
  background:transparent;
  border:1px solid var(--color-border-strong);
  border-radius:var(--radius-sm);
  cursor:pointer;
}

.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  margin:0 auto;
  background:var(--color-text);
  transition:transform .25s var(--ease), opacity .25s var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  justify-content:center;
  align-items:center;
  text-align:center;
  overflow:hidden;
  background:var(--color-bg);
  padding:calc(var(--header-height) + 2rem) 1.5rem 4rem;
}

.hero-grid{
  position:absolute;
  inset:0;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 60% 50% at 50% 40%, #000 40%, transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 60% 50% at 50% 40%, #000 40%, transparent 100%);
}

.hero::before{
  content:"";
  position:absolute;
  top:12%;
  left:50%;
  width:640px;
  height:640px;
  transform:translateX(-50%);
  background:radial-gradient(circle, rgba(255,208,0,0.09) 0%, rgba(255,208,0,0) 65%);
  z-index:0;
  pointer-events:none;
}

.hero::after{
  content:"";
  position:absolute;
  bottom:-10%;
  right:8%;
  width:520px;
  height:520px;
  background:radial-gradient(circle, rgba(120,140,170,0.10) 0%, rgba(120,140,170,0) 70%);
  z-index:0;
  pointer-events:none;
}

.hero-content{
  position:relative;
  z-index:1;
  max-width:760px;
  padding:20px;
  opacity:0;
  transform:translateY(24px);
  animation:heroIn .9s var(--ease) forwards;
}

@keyframes heroIn{
  to{opacity:1;transform:translateY(0);}
}

.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:0.55rem;
  margin-bottom:1.75rem;
  padding:0.5rem 1.1rem 0.5rem 0.9rem;
  border-radius:999px;
  background:var(--color-surface);
  border:1px solid var(--color-border-strong);
  color:var(--color-text-secondary);
  font-family:var(--font-heading);
  font-size:0.75rem;
  font-weight:600;
  letter-spacing:0.06em;
  text-transform:uppercase;
  transition:border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.hero-badge:hover{
  border-color:var(--color-accent);
  color:var(--color-text);
}

.hero-badge-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--color-accent);
  flex-shrink:0;
}

.title{
  font-family:var(--font-heading);
  font-size:clamp(2.6rem, 1.8rem + 4vw, 4.5rem);
  color:var(--color-text);
  letter-spacing:-0.02em;
}

.subtitle{
  font-size:clamp(1.2rem, 1rem + 0.8vw, 1.5rem);
  margin-top:1.1rem;
  color:var(--color-accent);
  font-weight:500;
}

.tagline{
  margin-top:0.9rem;
  font-size:1.05rem;
  color:var(--color-text-secondary);
  max-width:560px;
  margin-left:auto;
  margin-right:auto;
}

/* ==========================================================================
   REVEAL ANIMATION
   ========================================================================== */

.reveal{
  opacity:0;
  transform:translateY(32px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}

.reveal.in-view{
  opacity:1;
  transform:translateY(0);
}

.card{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .6s var(--ease), transform .6s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.card.in-view{
  opacity:1;
  transform:translateY(0);
}

/* ==========================================================================
   SERVIÇOS
   ========================================================================== */

.servicos{
  padding:6rem 0;
  background:var(--color-bg-alt);
  text-align:center;
}

.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));
  gap:1.5rem;
  margin-top:3rem;
  margin-bottom:1rem;
}

.card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  padding:2rem 1.75rem;
  text-align:left;
}

.card:hover{
  border-color:var(--color-border-strong);
  background:var(--color-surface-hover);
}

.card-icon{
  width:44px;
  height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-sm);
  background:var(--color-accent-soft);
  color:var(--color-accent);
  margin-bottom:1.25rem;
}

.card-icon svg{width:22px;height:22px;}

.card h3{
  color:var(--color-text);
  font-size:1.15rem;
}

.card p{
  color:var(--color-text-secondary);
  font-size:0.95rem;
}

.servicos-nota{
  text-align:center;
  color:var(--color-text-muted);
  font-size:0.9rem;
  margin-top:2.5rem;
}

/* ==========================================================================
   PROJETO EM DESTAQUE
   ========================================================================== */

.projeto{
  position:relative;
  padding:6rem 0;
  background:var(--color-bg);
  overflow:hidden;
}

.projeto::before{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:760px;
  height:760px;
  transform:translate(-50%, -50%);
  background:radial-gradient(circle, rgba(255,208,0,0.10) 0%, rgba(255,208,0,0) 70%);
  pointer-events:none;
  z-index:0;
}

.projeto-card{
  position:relative;
  z-index:1;
  max-width:920px;
  margin:2.5rem auto 0;
  display:flex;
  gap:2rem;
  align-items:flex-start;
  background:var(--color-surface);
  border:1px solid var(--color-border-strong);
  border-radius:var(--radius-lg);
  padding:3rem;
  box-shadow:0 24px 60px rgba(0,0,0,0.45), 0 0 0 1px rgba(255,208,0,0.06), 0 0 50px rgba(255,208,0,0.05);
}

.projeto-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  padding:1px;
  background:linear-gradient(155deg, rgba(255,208,0,0.35), rgba(255,208,0,0) 35%, rgba(255,208,0,0) 70%, rgba(255,208,0,0.18));
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}


.projeto-icon{
  flex:0 0 auto;
  width:52px;
  height:52px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-sm);
  background:var(--color-accent-soft);
  color:var(--color-accent);
}

.projeto-icon svg{width:26px;height:26px;}

.projeto-conteudo h3{
  color:var(--color-text);
  font-size:1.3rem;
  margin-bottom:1rem;
}

.projeto-conteudo p{
  font-size:0.98rem;
  margin-bottom:1rem;
}

.projeto-conteudo p:last-of-type{
  margin-bottom:0;
}

.projeto-nota{
  font-size:0.85rem;
  color:var(--color-text-muted);
  font-style:italic;
}

/* ==========================================================================
   TECNOLOGIAS
   ========================================================================== */

.tecnologias{
  padding:5rem 0;
  background:var(--color-bg);
  text-align:center;
}

.tech-grid{
  margin-top:2.5rem;
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));
  gap:1rem;
  max-width:980px;
  margin-left:auto;
  margin-right:auto;
}

.tech-item{
  display:flex;
  align-items:center;
  gap:0.85rem;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  padding:0.9rem 1.15rem;
  border-radius:var(--radius-md);
  font-family:var(--font-heading);
  font-weight:500;
  font-size:0.95rem;
  text-align:left;
  color:var(--color-text-secondary);
  transition:border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}

.tech-item:hover{
  border-color:var(--color-accent);
  color:var(--color-text);
  transform:translateY(-2px);
}

.tech-item-icon{
  flex:0 0 auto;
  width:32px;
  height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-sm);
  background:var(--color-accent-soft);
  color:var(--color-accent);
}

.tech-item-icon svg{width:16px;height:16px;}

/* ==========================================================================
   SOBRE
   ========================================================================== */

.sobre{
  padding:6rem 0;
  background:var(--color-bg-alt);
}

.sobre-container{
  max-width:1000px;
  margin:0 auto;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:3rem;
}

.sobre-texto{
  flex:1 1 460px;
}

.sobre-texto > p{
  font-size:1.02rem;
}

.founder-block{
  margin-top:1.75rem;
  padding:1.5rem;
  border-radius:var(--radius-md);
  background:rgba(255,255,255,0.025);
  border:1px solid var(--color-border);
}

.founder-block h3{
  color:var(--color-accent);
  font-size:1.1rem;
}

.sobre-foto{
  flex:0 1 328px;
  display:flex;
  justify-content:center;
  padding:14px;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:calc(var(--radius-lg) + 10px);
  box-shadow:var(--shadow-lg);
}

.sobre-foto img{
  width:100%;
  max-width:300px;
  aspect-ratio:1/1;
  object-fit:cover;
  border-radius:var(--radius-md);
  border:1px solid var(--color-border-strong);
}

/* ==========================================================================
   CONTATO
   ========================================================================== */

.contato{
  padding:6rem 0;
  background:var(--color-bg);
}

.contato h2{margin-bottom:3rem;}

.contato-container{
  max-width:900px;
  margin:0 auto;
  display:flex;
  flex-wrap:wrap;
  gap:2rem;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:2.75rem;
}

.contato-lista{
  flex:1 1 280px;
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:1.2rem;
}

.contato-lista li{
  display:flex;
  align-items:center;
  gap:0.9rem;
}

.contato-lista svg{
  width:20px;
  height:20px;
  color:var(--color-accent);
  flex-shrink:0;
}

.contato-lista a{
  color:var(--color-text-secondary);
  font-size:1rem;
}

.contato-lista a:hover{
  color:var(--color-text);
}

.contato-cta{
  flex:1 1 220px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-start;
  border-left:1px solid var(--color-border);
  padding-left:2rem;
}

.contato-cta p{
  color:var(--color-text);
  font-weight:500;
  margin-bottom:0.25rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer{
  background:var(--color-bg-alt);
  border-top:1px solid var(--color-border);
}

.footer-inner{
  max-width:var(--container-width);
  margin:0 auto;
  padding:3.5rem 1.5rem 2.5rem;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:2.5rem;
}

.footer-brand p{
  margin-top:0.5rem;
  font-size:0.9rem;
  color:var(--color-text-muted);
}

.footer-nav,
.footer-contato{
  display:flex;
  flex-direction:column;
  gap:0.7rem;
}

.footer-nav a,
.footer-contato a{
  color:var(--color-text-secondary);
  font-size:0.95rem;
  transition:color .2s var(--ease);
}

.footer-nav a:hover,
.footer-contato a:hover{
  color:var(--color-text);
}

.footer-bottom{
  border-top:1px solid var(--color-border);
  padding:1.5rem;
  text-align:center;
}

.footer-bottom p{
  font-size:0.85rem;
  color:var(--color-text-muted);
}

/* ==========================================================================
   GLASSMORPHISM (progressive enhancement)
   Base rules above already look correct with solid surfaces — this block
   only upgrades them to translucent/blurred glass where the browser
   actually supports backdrop-filter, so unsupported browsers silently
   keep the solid fallback instead of rendering unblurred transparency.
   ========================================================================== */

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){

  .hero-badge{
    background:rgba(21,23,28,0.55);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
  }

  .tech-item{
    background:rgba(21,23,28,0.45);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
  }

  .site-header{
    background:var(--glass-header);
    backdrop-filter:blur(18px) saturate(150%);
    -webkit-backdrop-filter:blur(18px) saturate(150%);
  }

  .card{
    background:var(--glass-sheen), var(--glass-card);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }

  .card:hover{
    background:var(--glass-sheen), var(--glass-card-hover);
  }

  .projeto-card{
    background:
      linear-gradient(155deg, rgba(255,255,255,0.06), rgba(255,255,255,0) 45%),
      linear-gradient(rgba(255,208,0,0.05), rgba(255,208,0,0) 60%),
      var(--glass-panel);
    backdrop-filter:blur(20px) saturate(150%);
    -webkit-backdrop-filter:blur(20px) saturate(150%);
    border-color:var(--glass-border);
  }

  .sobre-foto{
    background:var(--glass-sheen), var(--glass-panel);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-color:var(--glass-border);
  }

  .founder-block{
    background:rgba(255,255,255,0.035);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
  }

  .contato-container{
    background:var(--glass-sheen), var(--glass-panel);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-color:var(--glass-border);
  }
}

/* ==========================================================================
   RESPONSIVO
   ========================================================================== */

@media(max-width:1024px){
  .contato-cta{
    border-left:none;
    padding-left:0;
    border-top:1px solid var(--color-border);
    padding-top:1.5rem;
    align-items:flex-start;
  }
}

@media(max-width:900px){
  .nav{
    position:absolute;
    top:var(--header-height);
    left:0;
    width:100%;
    background:var(--color-bg);
    border-bottom:1px solid var(--color-border);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:0.5rem 1.5rem 1.5rem;
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  }

  .nav.is-open{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
    pointer-events:auto;
  }

  .nav a:not(.btn){
    padding:0.85rem 0;
    width:100%;
    border-bottom:1px solid var(--color-border);
  }

  .nav .btn{
    margin-top:1.25rem;
  }

  .nav-toggle{
    display:flex;
  }

  .sobre-container{
    flex-direction:column;
    text-align:left;
  }

  .sobre-foto{
    order:-1;
  }
}

@media(max-width:768px){
  .card{
    text-align:left;
  }

  .projeto-card{
    flex-direction:column;
    padding:2rem;
    gap:1.25rem;
  }

  .footer-inner{
    flex-direction:column;
  }
}

@media(max-width:480px){
  .section-inner{padding:0 1.25rem;}
  .servicos, .tecnologias, .sobre, .contato, .projeto{padding:4rem 0;}
  .contato-container{padding:1.75rem;}
  .projeto-card{padding:1.5rem;}
  .btn{width:100%;text-align:center;}
  .contato-cta .btn{width:auto;}

  .hero-badge{
    white-space:normal;
    text-align:center;
    font-size:0.68rem;
    padding:0.5rem 0.9rem;
  }
}