/* ==========================================================================
   INNERSISTEMAS — design system
   Paleta e tipografia = identidade já aprovada pelo cliente.
   ========================================================================== */
:root{
  --night:#0B1957;
  --night-2:#060B33;
  --night-3:#131F6E;
  --paper:#FBF7EF;
  --surface:#FFFFFF;
  --ink:#161B2E;
  --ink-soft:#5C6178;
  --line:#E4E2D8;

  --cobalt:#2D6FEB;
  --cobalt-deep:#173F91;
  --cobalt-tint:#E7EEFC;

  --gold:#D69A2D;
  --gold-deep:#8A6526;
  --gold-tint:#FBF0DB;

  --leaf:#39C463;
  --leaf-deep:#1F7A3B;
  --leaf-tint:#E4F8EA;

  --meia:#9AA3C2;

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Plus Jakarta Sans', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-soft:0 20px 45px -25px rgba(11,25,87,0.35);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--font-body); line-height:1.6; font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}
h1,h2,h3,h4{font-family:var(--font-display); margin:0; letter-spacing:-0.01em; line-height:1.15;}
p{margin:0 0 1em;}
ul{margin:0; padding:0;}
::selection{background:var(--cobalt); color:#fff;}
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--cobalt); outline-offset:3px;
}

.wrap{max-width:1160px; margin:0 auto; padding:0 24px;}
@media(max-width:576px){.wrap{padding:0 18px;}}

.eyebrow{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--cobalt-deep); display:flex; align-items:center; gap:8px; margin-bottom:14px;
}
.eyebrow::before{content:""; width:14px; height:1px; background:var(--cobalt-deep);}
.on-dark .eyebrow{color:var(--gold);}
.on-dark .eyebrow::before{background:var(--gold);}

.dark-bg{
  background:linear-gradient(150deg, var(--night) 0%, var(--night-2) 65%, var(--night) 100%);
  position:relative; color:#F4F5FB;
}
.dark-bg::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 64px);
}
.dark-bg .section-head p{color:#B7BEDA;}
.dark-bg .section-head h2, .dark-bg h1{color:#F4F5FB;}

section{padding:84px 0;}
@media(max-width:768px){section{padding:60px 0;}}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:44px; flex-wrap:wrap; position:relative;}
.section-head h2{font-size:clamp(26px,3.4vw,36px);}
.section-head p{color:var(--ink-soft); max-width:460px; font-size:15px;}

.btn-primary{
  background:var(--gold); color:#2E2107; font-weight:700; font-size:15px;
  padding:14px 26px; border:0; border-radius:11px; cursor:pointer;
  display:inline-flex; align-items:center; gap:8px; transition:transform .15s, background .15s;
}
.btn-primary:hover{background:#E4AE4C; transform:translateY(-1px); color:#2E2107;}
.btn-secondary{
  background:transparent; color:#F4F5FB; font-weight:600; font-size:15px;
  padding:13px 24px; border:1px solid rgba(244,245,251,0.35); border-radius:11px;
  display:inline-flex; align-items:center; gap:8px; transition:border-color .15s, background .15s;
}
.btn-secondary:hover{border-color:#fff; background:rgba(255,255,255,0.06);}
.btn-ghost{color:var(--cobalt-deep); text-decoration:none; font-size:14.5px; font-weight:600; border-bottom:1px solid rgba(23,63,145,0.35); padding-bottom:2px;}
.btn-ghost:hover{border-color:var(--cobalt-deep);}
.on-dark .btn-ghost{color:#D5D9EC; border-color:rgba(213,217,236,0.35);}
.on-dark .btn-ghost:hover{color:#fff; border-color:#fff;}

/* ---------- HEADER ---------- */
header.site-header{
  position:fixed; top:0; left:0; right:0; z-index:50;
  background:transparent; transition:background .25s ease, box-shadow .25s ease, backdrop-filter .25s ease;
  padding:6px 0;
}
header.site-header.is-scrolled{
  background:rgba(11,25,87,0.92); backdrop-filter:blur(10px);
  box-shadow:0 12px 30px -18px rgba(0,0,0,0.5);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:14px 24px; max-width:1160px; margin:0 auto;}
.brand{display:flex; align-items:center; gap:10px;}
.brand-word{font-family:var(--font-display); font-weight:700; font-size:18px; color:#F4F5FB;}
.brand-word span{font-weight:500; color:#9AA3C2;}
.nav-links{display:flex; align-items:center; gap:22px; font-size:14.5px; font-weight:500;}
.nav-links a{color:#D5D9EC; transition:color .15s;}
.nav-links a.active, .nav-links a:hover{color:var(--gold);}
.nav-cta{background:var(--gold); color:#2E2107 !important; padding:9px 18px; border-radius:9px; font-weight:700 !important;}
.nav-cta:hover{background:#E4AE4C;}
.nav-toggle{display:none; background:none; border:0; color:#fff; font-size:24px; cursor:pointer; padding:4px;}
@media(max-width:900px){
  .nav-links{position:fixed; inset:0 0 0 30%; background:var(--night-2); flex-direction:column; justify-content:center;
    align-items:flex-start; padding:32px; gap:22px; transform:translateX(100%); transition:transform .3s ease; z-index:60;}
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{font-size:20px;}
  .nav-toggle{display:block; z-index:70;}
}

/* ---------- HERO ---------- */
.hero{padding:130px 0 70px; overflow:hidden; position:relative;}
.hero::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(650px 320px at 88% -10%, rgba(45,111,235,0.32), transparent 60%),
             radial-gradient(520px 280px at 2% 108%, rgba(214,154,45,0.18), transparent 60%);
  pointer-events:none;
}
.hero-inner{position:relative; display:grid; grid-template-columns:1.15fr .85fr; gap:48px; align-items:center;}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr;}}
.hero h1{font-size:clamp(32px,5.4vw,52px); line-height:1.08;}
.hero h1 .accent{color:var(--gold);}
.hero p.lede{font-size:17.5px; color:#C3C9E4; max-width:520px; margin-top:22px;}
.cta-row{display:flex; align-items:center; gap:18px; margin-top:32px; flex-wrap:wrap;}
.trust-strip{display:flex; gap:24px; flex-wrap:wrap; margin-top:44px; padding-top:24px; border-top:1px solid rgba(255,255,255,0.1);}
.trust-strip span{font-size:12.5px; color:#9AA3C2; display:flex; align-items:center; gap:7px;}

.hero-visual{position:relative; display:flex; justify-content:center; align-items:center;}
.hero-visual svg{width:100%; max-width:340px; height:auto;}
.hero-visual .node{opacity:0; transform:scale(.6); transform-origin:center; animation:pop .5s cubic-bezier(.2,.9,.3,1.3) forwards;}
.hero-visual .node1{animation-delay:.15s;} .hero-visual .node2{animation-delay:.4s;} .hero-visual .node3{animation-delay:.65s;}
.hero-visual .node4{stroke-dasharray:210; stroke-dashoffset:210; opacity:1; animation:drawdash 1.1s ease forwards .95s;}
.hero-visual .link{opacity:0; animation:fadein .6s ease forwards 1.3s; stroke-dasharray:4 6;}
.hero-visual .dot{opacity:0; animation:fadein .4s ease forwards;}
@keyframes pop{to{opacity:1; transform:scale(1);}}
@keyframes drawdash{to{stroke-dashoffset:0;}}
@keyframes fadein{to{opacity:1;}}
@media (prefers-reduced-motion: reduce){
  .hero-visual .node, .hero-visual .node4, .hero-visual .link, .hero-visual .dot{animation:none; opacity:1; transform:none; stroke-dashoffset:0;}
}

/* ---------- PAGE HERO (páginas internas) ---------- */
.page-hero{padding:150px 0 60px;}
.page-hero h1{font-size:clamp(30px,4.6vw,44px);}
.page-hero p{color:#C3C9E4; max-width:620px; font-size:16.5px; margin-top:16px;}
.breadcrumb{font-family:var(--font-mono); font-size:12px; color:#9AA3C2; margin-bottom:18px; display:flex; gap:8px; align-items:center;}
.breadcrumb a{color:#9AA3C2;} .breadcrumb a:hover{color:#fff;}

/* ---------- PROBLEMA (postagem institucional) ---------- */
.post-block{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:52px; display:grid; grid-template-columns:auto 1fr; gap:40px; align-items:center;
}
@media(max-width:760px){.post-block{grid-template-columns:1fr; padding:34px 26px;}}
.post-mark{width:64px; height:64px; border-radius:16px; background:var(--cobalt-tint); display:flex; align-items:center; justify-content:center; flex-shrink:0;}
.post-block h2{font-size:clamp(22px,3vw,30px); margin-bottom:14px;}
.post-block p{color:var(--ink-soft); font-size:15.5px; max-width:640px;}
.post-block p:last-child{margin-bottom:0;}

/* ---------- CARDS DE SERVIÇO ---------- */
.grid-3{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:22px;}
.grid-2{display:grid; grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); gap:22px;}
.service-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md);
  padding:30px; transition:transform .18s ease, border-color .18s ease, box-shadow .18s ease; position:relative;
}
.service-card:hover{transform:translateY(-4px); border-color:var(--gold); box-shadow:var(--shadow-soft);}
.service-card .icon-wrap{width:44px; height:44px; border-radius:11px; background:var(--cobalt-tint); display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:20px; color:var(--cobalt-deep); transition:background .18s, color .18s;}
.service-card:hover .icon-wrap{background:var(--gold); color:#2E2107;}
.service-card .category{font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.08em; color:var(--ink-soft); display:block; margin-bottom:10px;}
.service-card h3{font-size:18px; margin-bottom:10px;}
.service-card p{color:var(--ink-soft); font-size:14.5px; margin-bottom:16px;}
.service-card .card-link{font-size:13.5px; font-weight:600; color:var(--cobalt-deep); display:inline-flex; align-items:center; gap:6px;}
.service-card .card-link .arrow{transition:transform .18s;}
.service-card:hover .card-link .arrow{transform:translateX(4px);}

/* ---------- TIMELINE "COMO TRABALHAMOS" ---------- */
.timeline{display:grid; grid-template-columns:repeat(5,1fr); gap:18px; position:relative;}
@media(max-width:992px){.timeline{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.timeline{grid-template-columns:1fr;}}
.timeline-step{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md); padding:26px 22px; position:relative;}
.timeline-step .num{font-family:var(--font-mono); font-size:12px; color:var(--gold-deep); display:block; margin-bottom:10px;}
.timeline-step h3{font-size:16px; margin-bottom:8px;}
.timeline-step p{font-size:13.5px; color:var(--ink-soft); margin:0;}
.timeline-step:nth-child(1){border-top:3px solid var(--cobalt);}
.timeline-step:nth-child(2){border-top:3px solid var(--gold);}
.timeline-step:nth-child(3){border-top:3px solid var(--leaf);}
.timeline-step:nth-child(4){border-top:3px solid var(--cobalt);}
.timeline-step:nth-child(5){border-top:3px solid var(--gold);}

/* ---------- FRASE DE IMPACTO ---------- */
.impact-band{text-align:center; padding:96px 0;}
.impact-band h2{font-size:clamp(26px,4.4vw,44px); max-width:780px; margin:0 auto 18px;}
.impact-band p{color:#B7BEDA; max-width:520px; margin:0 auto 30px; font-size:16px;}

/* ---------- BLOCO IA ---------- */
.ia-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:start;}
@media(max-width:900px){.ia-grid{grid-template-columns:1fr;}}
.ia-examples{display:grid; grid-template-columns:repeat(2,1fr); gap:12px;}
@media(max-width:520px){.ia-examples{grid-template-columns:1fr;}}
.ia-examples span{
  background:var(--surface); border:1px solid var(--line); border-radius:10px; padding:13px 16px;
  font-size:13.5px; font-weight:600; display:flex; align-items:center; gap:10px;
}
.ia-examples span::before{content:""; width:7px; height:7px; border-radius:50%; background:var(--leaf); flex-shrink:0;}

/* ---------- PROJETOS ---------- */
.project-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md); overflow:hidden; transition:transform .18s, box-shadow .18s;}
.project-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-soft);}
.project-visual{height:120px; display:flex; align-items:center; justify-content:center; position:relative;}
.project-visual svg{width:44px; height:44px;}
.project-body{padding:22px 24px 26px;}
.project-body .kicker{font-family:var(--font-mono); font-size:11px; color:var(--ink-soft); text-transform:uppercase; letter-spacing:.06em;}
.project-body h3{font-size:17px; margin:6px 0 8px;}
.project-body p{color:var(--ink-soft); font-size:13.5px; margin:0 0 14px;}
.tech-tags{display:flex; flex-wrap:wrap; gap:6px;}
.tech-tags span{font-family:var(--font-mono); font-size:10.5px; background:var(--cobalt-tint); color:var(--cobalt-deep); padding:3px 9px; border-radius:20px;}

/* ---------- TECNOLOGIAS ---------- */
.tech-strip{display:flex; flex-wrap:wrap; gap:12px; justify-content:center;}
.tech-strip span{
  font-family:var(--font-mono); font-size:13px; color:var(--ink-soft);
  border:1px solid var(--line); border-radius:20px; padding:8px 16px; background:var(--surface);
}

/* ---------- SOBRE / STATS ---------- */
.stats-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:48px;}
@media(max-width:640px){.stats-grid{grid-template-columns:1fr;}}
.stat-card{text-align:center; padding:34px 20px; border:1px solid var(--line); border-radius:var(--radius-md); background:var(--surface);}
.stat-card .value{font-family:var(--font-display); font-size:36px; font-weight:700; color:var(--cobalt-deep);}
.stat-card .label{font-size:13px; color:var(--ink-soft); text-transform:uppercase; letter-spacing:.06em; font-family:var(--font-mono); margin-top:6px;}

/* ---------- CTA FINAL ---------- */
.cta-band{
  border-radius:var(--radius-lg); padding:64px 52px; text-align:center;
  background:linear-gradient(140deg, var(--night) 0%, var(--night-3) 100%); color:#F4F5FB; position:relative; overflow:hidden;
}
.cta-band::before{content:""; position:absolute; inset:0; pointer-events:none; background:radial-gradient(420px 220px at 50% 0%, rgba(214,154,45,0.22), transparent 65%);}
.cta-band h2{font-size:clamp(24px,3.8vw,36px); max-width:680px; margin:0 auto 14px; position:relative;}
.cta-band p{color:#B7BEDA; max-width:520px; margin:0 auto 30px; font-size:15.5px; position:relative;}
.cta-band .cta-actions{display:flex; gap:16px; justify-content:center; flex-wrap:wrap; position:relative;}

/* ---------- BLOG ---------- */
.blog-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md); padding:28px; transition:transform .18s, border-color .18s;}
.blog-card:hover{transform:translateY(-3px); border-color:var(--cobalt);}
.blog-card .meta{font-family:var(--font-mono); font-size:11px; color:var(--ink-soft); text-transform:uppercase; letter-spacing:.06em; display:flex; gap:10px; margin-bottom:12px;}
.blog-card .meta .cat{color:var(--cobalt-deep);}
.blog-card h3{font-size:19px; margin-bottom:10px;}
.blog-card p{color:var(--ink-soft); font-size:14.5px; margin-bottom:14px;}
.article-header{padding:150px 0 40px;}
.article-body{max-width:720px; margin:0 auto; font-size:16.5px; color:var(--ink);}
.article-body p{margin-bottom:1.3em; color:#333B54;}
.article-body ol, .article-body ul{margin:0 0 1.3em; padding-left:22px;}
.article-body li{margin-bottom:.4em;}

/* ---------- FORMULÁRIO DE CONTATO ---------- */
.contact-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:start;}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;}}
.form-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg); padding:36px;}
.field{margin-bottom:18px;}
.field label{display:block; font-size:13.5px; font-weight:600; margin-bottom:7px; color:var(--ink);}
.field input, .field select, .field textarea{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:9px;
  font-family:var(--font-body); font-size:14.5px; background:#fff; color:var(--ink);
  transition:border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus{
  border-color:var(--cobalt); box-shadow:0 0 0 3px var(--cobalt-tint); outline:none;
}
.field-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media(max-width:520px){.field-row{grid-template-columns:1fr;}}
.field-error{color:#C0392B; font-size:12.5px; margin-top:5px;}
.field-checkbox{display:flex; align-items:flex-start; gap:10px; font-size:13px; color:var(--ink-soft);}
.field-checkbox input{width:auto; margin-top:3px;}
.alert{border-radius:10px; padding:14px 18px; font-size:14px; margin-bottom:20px;}
.alert-success{background:var(--leaf-tint); color:var(--leaf-deep); border:1px solid rgba(31,122,59,0.25);}
.alert-error{background:#FBEAE7; color:#A13A2B; border:1px solid rgba(161,58,43,0.25);}
.honeypot{position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden;}
.contact-info{position:sticky; top:110px;}
.contact-info .info-item{display:flex; gap:14px; padding:16px 0; border-bottom:1px dashed var(--line);}
.contact-info .info-item:last-child{border-bottom:none;}
.contact-info .info-item .ico{width:38px; height:38px; border-radius:10px; background:var(--cobalt-tint); color:var(--cobalt-deep); display:flex; align-items:center; justify-content:center; flex-shrink:0;}
.contact-info h4{font-size:14.5px; margin-bottom:3px;}
.contact-info p{font-size:13.5px; color:var(--ink-soft); margin:0;}

/* ---------- 404 ---------- */
.error-page{padding:170px 0 100px; text-align:center;}
.error-page .code{font-family:var(--font-mono); font-size:14px; color:var(--gold-deep); margin-bottom:10px;}
.error-page h1{font-size:clamp(30px,5vw,46px); margin-bottom:16px;}
.error-page p{color:var(--ink-soft); max-width:440px; margin:0 auto 28px;}

/* ---------- FOOTER ---------- */
footer.site-footer{padding:56px 0 28px;}
.footer-top{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; margin-bottom:44px;}
@media(max-width:820px){.footer-top{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.footer-top{grid-template-columns:1fr;}}
.footer-top h4{font-size:12px; text-transform:uppercase; letter-spacing:.08em; font-family:var(--font-mono); color:#7C86AC; margin-bottom:14px; font-weight:500;}
.footer-top a{display:block; font-size:14px; color:#D5D9EC; margin-bottom:10px;}
.footer-top a:hover{color:var(--gold);}
.footer-about p{font-size:14px; color:#B7BEDA; max-width:300px; margin-top:14px;}
.footer-social{display:flex; gap:12px; margin-top:16px;}
.footer-social a{width:36px; height:36px; border-radius:9px; border:1px solid rgba(255,255,255,0.14); display:flex; align-items:center; justify-content:center;}
.footer-social a:hover{border-color:var(--gold); color:var(--gold);}
.footer-bottom{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px; border-top:1px solid rgba(255,255,255,0.08); padding-top:24px; font-size:12.5px; color:#7C86AC;}
.footer-bottom a{color:#7C86AC;}
.footer-bottom a:hover{color:#fff;}
.footer-legal{display:flex; gap:18px;}

/* ---------- MICROINTERAÇÕES ---------- */
[data-animate]{opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease;}
[data-animate].is-visible{opacity:1; transform:none;}
@media (prefers-reduced-motion: reduce){
  [data-animate]{opacity:1; transform:none; transition:none;}
}