/* ==========================================================================
   Apollo — Dark-only UI Kit (refinado, sem toggle)
   Foco: contraste AA, ritmo visual estável, animações sutis
   Versão: VIVID + Sections Zebra & Dividers
   ========================================================================== */

:root{
  /* Brand (azuis mais vivos) */
  --primary:       #3B82F6;   /* azul principal (antes: #2563EB) */
  --primary-dark:  #1E3A8A;   /* azul escuro profundo */
  --accent:        #7CB8FF;   /* azul claro mais saturado */
  --accent-dark:   #1D4ED8;   /* azul médio-escuro */

  /* Neutros (dark) com leve matiz azulada */
  --bg-950:#0b1224;
  --bg-900:#0d1430; /* header/footer */
  --bg-850:#10182e; /* cards base / sections */
  --bg-800:#0e1731; /* hero overlay */
  --line-700:#223056;

  --text-100:#F9FAFB;
  --text-200:#E7ECF3; /* +legível */
  --text-300:#CFDAE8; /* +vivo */
  --text-400:#A6B4CB; /* +vivo */

  /* Efeitos */
  --ring: rgba(59,130,246,.55);
  --shadow-1: 0 10px 28px rgba(6,12,27,.38);
  --shadow-2: 0 26px 70px -12px rgba(6,12,27,.62);

  /* Hero sizing */
  --hero-min: 720px;
  --hero-max: 980px;
  --hero-vh:  92vh;

  /* Superfícies alternadas para sections (zebra) */
  --surface-1: #10182e; /* levemente + fria/azulada */
  --surface-2: #0d1430; /* um tom + profundo */
}

/* ===== Reset / base ===== */
*,
*::before,
*::after{ box-sizing:border-box; }
html:focus-within{ scroll-behavior:smooth; }
body{
  font-family:'Inter',sans-serif;
  background-color:var(--bg-850);
  color:var(--text-100);
  transition:background-color .25s ease, color .25s ease;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img, svg, video, canvas { display:block; max-width:100%; }
button { font:inherit; }

/* ===== Utilitários de cor (compat c/ HTML atual) ===== */
.bg-dark-200{ background-color:#1f2937; }
.bg-dark-300{ background-color: var(--surface-1); } /* atualizado */
.bg-dark-400{ background-color: var(--surface-2); } /* atualizado */

.text-light-100{ color:var(--text-100); }
.text-light-200{ color:var(--text-200); }
.text-light-300{ color:var(--text-300); }
.text-light-400{ color:var(--text-400); }
.text-primary-400{ color:#7CB8FF; }
.text-primary-500{ color:#3B82F6; }

/* “accent” agora é azul também (mantém compat com seu HTML) */
.text-accent-400{ color:#93c5fd; }
.text-accent-500{ color:#7CB8FF; }
.bg-accent-900{ background-color:#0b1f44; }

.bg-primary-600{ background-color:#3B82F6; }
.bg-primary-700{ background-color:#1D4ED8; }
.bg-primary-900{ background-color:#1E3A8A; }

/* ===== Header fixo (leve vidro) ===== */
header{
  background:linear-gradient(180deg, rgba(13,20,48,.95), rgba(13,20,48,.82));
  backdrop-filter:saturate(165%) blur(9px);
  border-bottom:1px solid rgba(124,184,255,.10);
}

/* Logo (maior) com crossfade PNG ⇄ SVG */
.brand-logo{
  position: relative;
  display: inline-block;
  height: 48px;      /* desktop */
  width: 210px;      /* reserva espaço para evitar reflow */
}
.brand-logo img{
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: auto;
  max-width: none;           /* neutraliza img{max-width:100%} global */
  object-fit: contain;
  transition: opacity .25s ease;
}
.brand-logo .logo-desktop{ opacity: 1; }
.brand-logo .logo-mobile { opacity: 0; }

@media (max-width: 767px){
  .brand-logo{
    height: 40px;
    width: 170px;
  }
  .brand-logo .logo-desktop{ opacity: 0; }
  .brand-logo .logo-mobile { opacity: 1; }
}

/* ===== Hero & padronagens ===== */
.hero-gradient{
  background:
    radial-gradient(1200px 600px at 70% 10%, rgba(124,184,255,.18), transparent 70%),
    radial-gradient(1200px 600px at 0% 80%, rgba(59,130,246,.18), transparent 70%),
    linear-gradient(135deg,#0B1224 0%,#0E1731 55%,#0D1430 100%);
}
.grid-pattern{
  background-image:radial-gradient(circle at 1px 1px, rgba(59,130,246,.22) 1px, transparent 0);
  background-size:30px 30px;
}
.highlight-text{
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  font-weight:800;
  text-shadow: 0 0 12px rgba(124,184,255,.18);
}

/* ===== HERO — centralização + camadas ===== */
.hero-section{
  position:relative;
  min-height:clamp(var(--hero-min), var(--hero-vh), var(--hero-max));
  display:grid;
  align-items:center;
  padding-top:clamp(96px, 12vh, 160px) !important;
  padding-bottom:clamp(24px, 7vh, 96px) !important;
}

/* Fundo Vanta (substitui #three-container) */
#vanta-bg{
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  opacity:.95;
  filter:saturate(1.12) contrast(1.08);
  transform:translate3d(0,0,0);
}
#vanta-bg canvas{
  width:100% !important;
  height:100% !important;
  display:block;
}

/* Camadas decorativas acima do Vanta */
.hero-glow{
  position:absolute;
  width:48vw; height:48vw;
  max-width:840px; max-height:840px;
  border-radius:50%;
  filter:blur(58px) saturate(1.12);
  opacity:.33;
  z-index:2;
}
.hero-glow--left{
  left:-10vw; top:-10vw;
  background:radial-gradient(closest-side, rgba(59,130,246,.95), transparent 70%);
}
.hero-glow--right{
  right:-12vw; bottom:-12vw;
  background:radial-gradient(closest-side, rgba(124,184,255,.95), transparent 70%);
}
.hero-vignette{
  position:absolute; inset:-2px; z-index:2; pointer-events:none;
  background:
    radial-gradient(1200px 500px at 60% 40%, rgba(0,0,0,0) 0%, rgba(0,0,0,.18) 70%, rgba(0,0,0,.35) 100%),
    linear-gradient(to bottom, rgba(0,0,0,.12), rgba(0,0,0,0) 40%, rgba(0,0,0,.16));
}

/* Conteúdo do hero por cima de tudo */
.hero-section .container{ position:relative; z-index:3; }

/* ===== Chips (glass) ===== */
.glass-chip{
  display:inline-flex; align-items:center; gap:.55rem;
  padding:.5rem .9rem; border-radius:9999px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(124,184,255,.16);
  color:#E7ECF3; font-size:.92rem; backdrop-filter:blur(8px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06) inset;
}
.glass-chip i{ color:#7CB8FF; } /* ícone azul */

/* ===== Efeito aparecer ao rolar ===== */
[data-animate]{ opacity:1; transform:none; }
.enable-ani [data-animate]{
  opacity:0; transform:translateY(22px); transition:all .7s ease;
}
.enable-ani [data-animate].animated{
  opacity:1; transform:translateY(0);
}

/* ===== Cards / Glass ===== */
.glass-effect{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.04));
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow-1);
}
.card-hover{
  transition:transform .4s cubic-bezier(.175,.885,.32,1.275), box-shadow .35s ease;
  transform-origin:center;
  background:linear-gradient(180deg, rgba(21,32,64,.70), rgba(16,24,46,.86));
  border:1px solid rgba(124,184,255,.12);
  box-shadow: 0 1px 0 rgba(124,184,255,.06) inset, var(--shadow-1);
}
.card-hover:hover{
  transform:translateY(-7px);
  box-shadow: 0 1px 0 rgba(124,184,255,.08) inset, var(--shadow-2);
  border-color: rgba(124,184,255,.24);
}

/* ===== Nav underline ===== */
.nav-link{ position:relative; transition:color .2s ease; }
.nav-link::after{
  content:''; position:absolute; bottom:-6px; left:0; width:0; height:2px;
  background:linear-gradient(135deg,#3B82F6 0%, #7CB8FF 100%);
  transition:width .25s ease;
  border-radius:2px;
}
.nav-link:hover::after{ width:100%; }

/* ===== Botões ===== */
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff; border:none; border-radius:14px; padding:14px 28px; font-weight:700;
  transition:transform .15s ease, box-shadow .25s ease, filter .25s ease;
  box-shadow:0 10px 26px rgba(59,130,246,.28);
  filter:saturate(1.05);
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:saturate(1.12) brightness(1.02);
  box-shadow:0 16px 36px rgba(59,130,246,.36);
}
.btn-primary:focus-visible{ outline:2px solid #93c5fd; outline-offset:2px; }

.btn-secondary{
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.06));
  color:#fff; border:1px solid rgba(124,184,255,.16);
  border-radius:14px; padding:14px 28px; font-weight:700;
  transition:all .25s ease;
}
.btn-secondary:hover{ background:rgba(255,255,255,.12); border-color:rgba(124,184,255,.26); }
.btn-secondary:focus-visible{ outline:2px solid var(--ring); outline-offset:2px; }

.btn-accent{
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  color:#fff; border:none; border-radius:14px; padding:14px 28px; font-weight:700;
  transition:transform .15s ease, box-shadow .25s ease, filter .25s ease;
  box-shadow:0 10px 26px rgba(124,184,255,.26);
  filter:saturate(1.05);
}
.btn-accent:hover{
  transform:translateY(-1px);
  filter:saturate(1.12) brightness(1.02);
  box-shadow:0 16px 36px rgba(124,184,255,.34);
}
.btn-accent:focus-visible{ outline:2px solid #93c5fd; outline-offset:2px; }

/* ===== Progress bar ===== */
.progress-bar{
  position:fixed; top:0; left:0; width:0%; height:4px;
  background:linear-gradient(135deg,#3B82F6,#7CB8FF);
  z-index:100; transition:width .2s ease;
}

/* ===== Mobile menu ===== */
.mobile-menu{ display:none; transition:all .25s ease; }
.mobile-menu.open{ display:block; animation:fadeIn .25s ease; }
@keyframes fadeIn{ from{opacity:0; transform:translateY(-8px);} to{opacity:1; transform:translateY(0);} }

/* ===== Footer ===== */
.border-top{ border-top:1px solid rgba(124,184,255,.12); }
footer{
  background: linear-gradient(180deg, rgba(13,20,48,.96), rgba(13,20,48,.90));
  box-shadow: 0 -1px 0 rgba(124,184,255,.10) inset;
}

/* ===== Carrossel de Tecnologias ===== */
.tech-swiper{ position:relative; padding:.25rem 2.5rem 2.25rem; }
.tech-swiper .swiper-slide{ display:flex; justify-content:center; }
.logo-card{
  background:#fff; color:#0f172a;
  border:1px solid rgba(124,184,255,.14);
  border-radius:18px;
  width:100%; max-width:140px; aspect-ratio:1 / 1;
  display:flex; align-items:center; justify-content:center;
  padding:14px;
  box-shadow:0 10px 26px rgba(6,12,27,.24);
  transition:transform .25s ease, box-shadow .25s ease;
  outline: none;
}
.logo-card:hover{ transform:translateY(-3px); box-shadow:0 18px 40px rgba(6,12,27,.40); }
.logo-card:focus-visible{ box-shadow:0 0 0 3px rgba(59,130,246,.45); }
.logo-card img{ width:100%; height:100%; object-fit:contain; }

.tech-nav{
  position:absolute; top:50%; transform:translateY(-50%);
  width:40px; height:40px; border-radius:9999px;
  display:grid; place-items:center;
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.06));
  border:1px solid rgba(255,255,255,.12);
  color:#e5e7eb; z-index:2;
  transition:filter .2s ease, transform .15s ease;
}
.tech-nav:hover{ filter:brightness(1.15); transform:translateY(-50%) scale(1.04); }
.tech-prev{ left:.5rem; } .tech-next{ right:.5rem; }
.tech-pagination{ position:absolute; left:0; right:0; bottom:.25rem; display:flex; justify-content:center; gap:8px; }
.tech-bullet{ width:6px; height:6px; border-radius:9999px; background:rgba(255,255,255,.36); }
.tech-bullet.is-active{ width:20px; background:linear-gradient(135deg,#3B82F6,#7CB8FF); }

/* ===== Section palette & dividers (zebra sem mexer no HTML) ===== */
body > section{
  position: relative;
  isolation: isolate; /* separa camadas de overlay */
}

/* Zebra automática nas <section> (não afeta header/footer) */
body > section:nth-of-type(odd){
  /* camada sutil azul clara + surface-1 */
  background:
    linear-gradient(180deg, rgba(124,184,255,.05), rgba(124,184,255,0) 24%),
    var(--surface-1);
}
body > section:nth-of-type(even){
  /* camada sutil azul média + surface-2 */
  background:
    linear-gradient(180deg, rgba(59,130,246,.05), rgba(59,130,246,0) 24%),
    var(--surface-2);
}

/* Separador suave entre sections (linha com gradiente) */
body > section + section::before{
  content:"";
  position:absolute;
  inset-inline:0;
  top:-1px;
  height:1px;
  background: linear-gradient(90deg,
    rgba(124,184,255,.00),
    rgba(124,184,255,.28),
    rgba(124,184,255,.00)
  );
  opacity:.55;
  pointer-events:none;
  z-index:1;
}

/* Padrão discreto nas sections pares (grid fininho) */
body > section:nth-of-type(even)::after{
  content:"";
  position:absolute; inset:0; z-index:0; pointer-events:none;
  background-image: radial-gradient(circle at 1px 1px, rgba(59,130,246,.10) 1px, transparent 0);
  background-size: 26px 26px;
  opacity:.25;
}

/* Ajusta contraste dos cards conforme o fundo da section */
body > section.bg-dark-300 .card-hover{
  background: linear-gradient(180deg, rgba(23,34,70,.72), rgba(18,27,54,.90));
  border-color: rgba(124,184,255,.14);
}
body > section.bg-dark-400 .card-hover{
  background: linear-gradient(180deg, rgba(18,27,54,.78), rgba(13,20,48,.92));
  border-color: rgba(124,184,255,.18);
}

/* Headings ficam mais “pop” em cada faixa */
body > section .highlight-text{
  text-shadow: 0 0 10px rgba(124,184,255,.16);
}

/* ===== Formulário — foco mais “clean” e vivo ===== */
input, textarea{
  transition: box-shadow .25s ease, border-color .25s ease, background-color .25s ease;
}
input:focus, textarea:focus{
  outline: none;
  border-color: rgba(124,184,255,.35) !important;
  box-shadow: 0 0 0 3px rgba(124,184,255,.18);
  background-color: #121c35 !important;
}

/* ===== Acessibilidade: reduz animações ===== */
@media (prefers-reduced-motion: reduce){
  html:focus-within{ scroll-behavior:auto; }
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* ===== Breakpoints ===== */
@media (max-width:1280px){
  :root{ --hero-min:680px; --hero-vh:90vh; }
  .hero-glow{ width:56vw; height:56vw; }
}

@media (max-width:768px){
  :root{ --hero-min:560px; --hero-vh:86vh; }
  .hero-section{
    padding-top:clamp(80px, 11vh, 120px) !important;
    padding-bottom:clamp(20px, 6vh, 72px) !important;
  }
  .hero-glow{ width:70vw; height:70vw; opacity:.28; }
  .hero-glow--left{ left:-18vw; top:-16vw; }
  .hero-glow--right{ right:-20vw; bottom:-18vw; }
  .glass-chip{ font-size:.85rem; padding:.45rem .8rem; }
  #vanta-bg{ opacity:.92; filter:saturate(1.08) contrast(1.06); }
}