/* === Tokens === */
:root{
  --c-primary:#8B2FA0;
  --c-primary-dark:#6B1F7D;
  --c-navy:#200F36;
  --c-navy-light:#32184F;
  --c-amber:#F5A93E;
  --c-amber-dark:#8A5713;
  --c-bg:#F7F4FA;
  --c-ink:#241B2E;
  --c-muted:#6B5F78;
  --c-white:#FFFFFF;
  --c-border:#E4DEEA;
  --c-success:#2E7D5B;
  --c-danger:#B23347;
  --c-onDark-secondary:#C7B7DA;
  --c-onDark-tertiary:#9A85B5;
  --font-display:'IBM Plex Mono',monospace;
  --font-body:'IBM Plex Mono',monospace;
  --header-h:76px;
}

/* === Reset === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:18px;}
body{
  font-family:var(--font-body);
  color:var(--c-ink);
  background:var(--c-bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
section{scroll-margin-top:var(--header-h);}

.hl{color:var(--c-amber);font-weight:700;}

/* === Botões === */
.btn{
  display:inline-block;
  background:var(--c-primary);
  color:var(--c-white);
  font-family:var(--font-body);
  font-weight:600;
  padding:.9rem 2rem;
  border-radius:8px;
  border:none;
  cursor:pointer;
  transition:background .2s ease;
}
.btn:hover{background:var(--c-primary-dark);}

/* === Header/Nav === */
.header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:var(--c-navy);
  height:var(--header-h);
  transition:box-shadow .2s ease;
}
.header.is-scrolled{box-shadow:0 4px 16px rgba(0,0,0,.25);}
.header__inner{
  max-width:1280px;
  margin:0 auto;
  height:100%;
  padding:0 2rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  font-size:2rem;
  font-weight:700;
  color:var(--c-white);
}
.logo__dot{color:var(--c-amber);}

.nav{
  display:flex;
  align-items:center;
  gap:2rem;
}
.nav__list{display:flex;gap:1.5rem;}
.nav__link{
  color:var(--c-onDark-secondary);
  font-size:.95rem;
  font-weight:500;
  transition:color .2s ease;
}
.nav__link:hover{color:var(--c-white);}
.btn--nav{padding:.65rem 1.4rem;font-size:.88rem;}

.hamburger{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:32px;
  height:32px;
  background:none;
  border:none;
  cursor:pointer;
}
.hamburger span{
  display:block;
  width:100%;
  height:2px;
  background:var(--c-onDark-secondary);
}

/* === Hero === */
.hero{
  background:var(--c-navy);
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:var(--header-h) 2rem 4rem;
}
.hero__inner{
  width:100%;
  max-width:1100px;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:2.5rem;
}
.hero__logo{width:700px;}
.hero__quote{
  font-style:italic;
  color:var(--c-white);
  font-size:clamp(.55rem,2.1vw,1.5rem);
  line-height:1.7;
  white-space:nowrap;
}

/* === Seções genéricas === */
.section-title{
  font-family:var(--font-display);
  font-weight:700;
  font-size:2.5rem;
  line-height:1.35;
}
.section-title--center{text-align:center;}
.section-title em{font-style:italic;}

/* === Problema === */
.problema{
  background:var(--c-bg);
  padding:6rem 2rem;
  position:relative;
  overflow:hidden;
}
.problema__inner{
  max-width:1100px;
  margin:0 auto;
  position:relative;
}
.problema__img{
  position:absolute;
  top:2rem;
  right:1rem;
  width:300px;
  z-index:0;
}
.problema .section-title{
  position:relative;
  z-index:2;
  max-width:700px;
  margin:0 0 3.5rem;
}
.cards-grid{
  display:grid;
  gap:1.5rem;
  position:relative;
  z-index:1;
}
.cards-grid--2x2{grid-template-columns:1fr 1fr;}
.cards-grid--4{grid-template-columns:repeat(4,1fr);}
.cards-grid--4 .card__title{white-space:nowrap;}
.cards-grid--4 .card__text{min-height:5.5em;}
.card{
  background:var(--c-white);
  border:1px solid var(--c-border);
  border-radius:12px;
  padding:1.75rem;
}
.card--center{text-align:center;}
.card__title{
  font-size:1.2rem;
  font-weight:700;
  margin-bottom:.75rem;
}
.card__text{color:var(--c-muted);font-size:1.05rem;text-align:justify;}

/* === Solução === */
.solucao{
  background:var(--c-navy);
  padding:6rem 2rem;
}
.solucao__inner{
  max-width:1100px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3rem;
  align-items:center;
}
.solucao__img{width:100%;max-width:420px;justify-self:center;}
.solucao .section-title{color:var(--c-white);margin-bottom:2rem;}
.solucao__text{
  color:var(--c-onDark-secondary);
  margin-bottom:1.25rem;
  font-size:1.1rem;
  text-align:justify;
}

/* === Benefícios === */
.beneficios{
  background:var(--c-bg);
  padding:6rem 2rem;
}
.beneficios__inner{
  max-width:1200px;
  margin:0 auto;
}
.beneficios .section-title{margin-bottom:3rem;}
.beneficios__tagline{
  margin-top:3.5rem;
  text-align:center;
  text-transform:uppercase;
  font-weight:700;
  font-size:1.4rem;
  color:var(--c-ink);
  letter-spacing:.02em;
}

/* === Funcionamento === */
.funcionamento{
  background:var(--c-navy);
  padding:6rem 2rem;
}
.funcionamento__inner{
  max-width:1100px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3rem;
  align-items:center;
}
.funcionamento .section-title{color:var(--c-white);margin-bottom:2.5rem;}
.funcionamento__img{width:100%;max-width:420px;justify-self:center;}
.steps{display:flex;flex-direction:column;gap:1.5rem;}
.steps__item{display:flex;gap:1rem;align-items:flex-start;}
.steps__badge{
  flex:0 0 auto;
  width:32px;height:32px;
  border-radius:50%;
  background:var(--c-amber);
  color:var(--c-white);
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.steps__text{color:var(--c-onDark-secondary);font-size:1.1rem;text-align:justify;}
.steps__text strong{color:var(--c-white);}

/* === Manifesto === */
.manifesto__top{
  background:var(--c-bg);
  padding:5rem 2rem 3rem;
}
.manifesto__top .section-title{max-width:800px;margin:0 auto;}
.manifesto__bottom{
  background:var(--c-bg);
  padding:3rem 2rem 5rem;
  text-align:center;
}
.manifesto__text{
  color:var(--c-muted);
  max-width:700px;
  margin:0 auto 2rem;
  font-size:1.15rem;
}

/* === Sobre === */
.sobre{
  background:var(--c-navy);
  padding:6rem 2rem;
  position:relative;
  overflow:hidden;
}
.sobre__inner{
  max-width:1100px;
  margin:0 auto;
  position:relative;
}
.sobre .section-title{color:var(--c-white);margin-bottom:2rem;}
.sobre__content{max-width:900px;position:relative;z-index:2;}
.sobre__text{
  color:var(--c-onDark-secondary);
  margin-bottom:1.25rem;
  font-size:1.1rem;
  text-align:justify;
}
.autoria{margin-top:2.5rem;}
.autoria__label{color:var(--c-white);font-weight:600;margin-bottom:1.25rem;}
.autoria__aluno{
  display:flex;
  align-items:center;
  gap:1rem;
  margin-bottom:1rem;
}
.autoria__nome{color:var(--c-white);font-weight:500;}
.autoria__icons{display:flex;gap:.75rem;}
.icon-link{
  color:var(--c-onDark-secondary);
  transition:color .2s ease;
}
.icon-link:hover{color:var(--c-amber);}
.autoria__curso{
  color:var(--c-onDark-tertiary);
  font-size:.85rem;
  margin-top:1.5rem;
}
.sobre__chars{
  position:absolute;
  right:0;
  bottom:-1rem;
  display:flex;
  align-items:flex-end;
  gap:1rem;
  z-index:1;
}
.sobre__char--iceman{
  width:310px;
  position:relative;
  top:-3rem;
}
.sobre__char--cyclops{
  width:280px;
}

/* === Reveal on scroll === */
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s ease, transform .6s ease;
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
}

/* === Mobile menu === */
.nav.is-open{
  display:flex;
}

/* === Responsive === */
@media (max-width:768px){
  html{font-size:16px;}

  .nav{
    display:none;
    position:absolute;
    top:var(--header-h);
    left:0;right:0;
    background:var(--c-navy);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:1rem 2rem 1.5rem;
  }
  .nav.is-open{display:flex;}
  .nav__list{flex-direction:column;gap:0;}
  .nav__link{
    display:block;
    padding:.9rem 0;
    border-bottom:1px solid var(--c-navy-light);
  }
  .btn--nav{margin-top:1rem;text-align:center;}
  .hamburger{display:flex;}

  .logo{font-size:1.5rem;}

  .hero{padding:calc(var(--header-h) + 2rem) 1.5rem 3rem;}
  .hero__logo{width:200px;}
  .hero__quote{
    white-space:normal;
    font-size:1rem;
  }

  .section-title{font-size:1.75rem;}

  .problema{padding:4rem 1.5rem;}
  .problema__img{
    width:120px;
    top:-1.5rem;
    right:0;
  }
  .cards-grid--2x2{grid-template-columns:1fr;}
  .cards-grid--4{grid-template-columns:1fr;}
  .cards-grid--4 .card__title{white-space:normal;}
  .cards-grid--4 .card__text{min-height:0;}

  .solucao,
  .funcionamento,
  .sobre{padding:4rem 1.5rem;}
  .beneficios{padding:4rem 1.5rem;}

  .solucao__inner,
  .funcionamento__inner{
    grid-template-columns:1fr;
    gap:2rem;
  }
  .funcionamento__img{order:2;}
  .funcionamento__content{order:1;}

  .beneficios__tagline{font-size:1.1rem;}

  .manifesto__top,
  .manifesto__bottom{padding-left:1.5rem;padding-right:1.5rem;}

  .autoria__aluno{
    flex-wrap:wrap;
    gap:.5rem 1rem;
  }

  .sobre__inner{padding-bottom:260px;}
  .sobre__chars{
    left:0;right:0;
    justify-content:center;
    bottom:0;
  }
  .sobre__char--iceman{width:170px;top:0;}
  .sobre__char--cyclops{width:170px;}
}

@media (max-width:480px){
  .problema__img{display:none;}
  .hero__logo{width:160px;}
  .section-title{font-size:1.5rem;}
  .sobre__char--iceman{width:130px;}
  .sobre__char--cyclops{width:130px;}
  .sobre__inner{padding-bottom:210px;}
}