/* =========================================================
   CIENTIFICANDO — Design System
   Science + Engineering + AI + Research + Education
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  /* ---- Color tokens — identidade Cientificando: preto/navy + dourado + prata ---- */
  --navy-950:#07080b;       /* quase preto, tal como o fundo da logo */
  --navy-900:#0d1015;       /* preto/navy profundo, base institucional */
  --navy-800:#161a22;
  --navy-700:#232834;
  --ink:#0a0a0c;            /* texto quase-preto */
  --paper:#ffffff;
  --paper-soft:#f7f6f3;     /* neutro muito claro, ligeiramente quente (papel) */
  --line:#e7e4dc;           /* linhas finas sobre fundo claro */
  --line-dark:rgba(255,255,255,.12);
  --muted:#5c5a54;          /* texto secundário sobre claro */
  --muted-dark:#a3a099;     /* texto secundário sobre escuro */
  --gold:#c9a227;           /* dourado da marca — cor de destaque principal */
  --gold-soft:#f4ecd8;
  --silver:#b7bcc4;         /* prata da marca — destaque secundário */
  --accent:var(--gold);     /* accent principal do site = dourado */
  --accent-2:var(--silver); /* accent secundário = prata */
  --tech-blue:#2e5bff;      /* azul da Nexa — usado apenas nas secções da Nexa */
  --accent-soft:var(--gold-soft);

  /* ---- Type ---- */
  --font-display:'Manrope', system-ui, sans-serif;
  --font-body:'Inter', system-ui, sans-serif;
  --font-mono:'JetBrains Mono', ui-monospace, monospace;

  /* ---- Layout ---- */
  --container:1200px;
  --gutter:clamp(20px, 5vw, 64px);
  --radius:10px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{font-family:var(--font-display);margin:0;font-weight:700;letter-spacing:-0.02em;}

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

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--accent);
}
.eyebrow::before{
  content:'';
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
}
.section-dark .eyebrow::before{ box-shadow:0 0 0 3px rgba(46,91,255,.18); }

h1{font-size:clamp(2.2rem, 4.6vw, 4rem); line-height:1.05;}
h2{font-size:clamp(1.7rem, 3vw, 2.5rem); line-height:1.12;}
h3{font-size:1.15rem; line-height:1.3;}
p{margin:0;}
.lede{font-size:clamp(1.05rem,1.6vw,1.25rem); color:var(--muted); max-width:60ch;}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-body); font-weight:600; font-size:.95rem;
  padding:13px 22px; border-radius:8px;
  border:1px solid transparent; cursor:pointer;
  transition:transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--navy-900); color:#fff;}
.btn-primary:hover{background:var(--ink);}
.btn-ghost{border-color:var(--line); color:var(--ink); background:transparent;}
.btn-ghost:hover{border-color:var(--navy-900);}
.btn-on-dark{border-color:var(--line-dark); color:#fff;}
.btn-on-dark:hover{border-color:#fff;}
.btn-accent{background:var(--gold); color:var(--navy-950);}
.btn-accent:hover{background:#b8931f;}

/* ---- Header / Nav ---- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px var(--gutter);
  max-width:var(--container); margin:0 auto;
}
.logo{
  font-family:var(--font-display); font-weight:800; font-size:1.05rem;
  letter-spacing:-.01em;
  display:flex; align-items:center; gap:10px;
}
.brand-mark{
  height:34px; width:auto; border-radius:8px; flex:none;
}
.nav-links{display:flex; gap:34px; align-items:center;}
.nav-links a{
  font-size:.92rem; font-weight:500; color:var(--ink);
  position:relative; padding:4px 0;
}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-2px; height:1px; width:0;
  background:var(--accent); transition:width .2s ease;
}
.nav-links a:hover::after{width:100%;}
.nav-cta{display:flex; align-items:center; gap:18px;}
.nav-toggle{display:none; background:none;border:none;cursor:pointer;}

@media (max-width: 880px){
  .nav-links{
    position:fixed; inset:0 0 0 auto; top:0; height:100vh; width:min(78vw,320px);
    background:var(--navy-950); flex-direction:column; justify-content:center;
    gap:28px; padding:40px; transform:translateX(100%); transition:transform .3s ease;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{color:#fff; font-size:1.1rem;}
  .nav-cta .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
}

/* ---- Sections ---- */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-dark{background:var(--navy-950); color:#fff;}
.section-soft{background:var(--paper-soft);}
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end; gap:40px;
  margin-bottom:56px; flex-wrap:wrap;
}
.section-dark .lede, .section-dark p{color:var(--muted-dark);}

/* ---- Hero ---- */
.hero{
  position:relative; overflow:hidden;
  background:var(--navy-950); color:#fff;
  padding:150px 0 110px;
}
.hero::before, .section-dark::before{
  content:''; position:absolute; top:50%; right:-180px; width:640px; height:640px;
  border:1px solid rgba(201,162,39,.12); border-radius:50%; transform:translateY(-50%);
  pointer-events:none;
}
.hero::after, .section-dark::after{
  content:''; position:absolute; top:50%; right:-40px; width:360px; height:360px;
  border:1px solid rgba(183,188,196,.10); border-radius:50%; transform:translateY(-50%);
  pointer-events:none;
}
.section-dark{position:relative; overflow:hidden;}
.hero-grid{
  display:grid; grid-template-columns:1.1fr .9fr; gap:60px; align-items:center;
}
.hero h1{margin:20px 0 24px;}
.hero .lede{color:var(--muted-dark); margin-bottom:36px;}
.hero-ctas{display:flex; gap:16px; flex-wrap:wrap;}
.hero-visual{position:relative; aspect-ratio:1/1;}
.hero-bg-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 30% 20%, black, transparent 70%);
  opacity:.5;
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .hero{padding:120px 0 70px;}
}

/* ---- Philosophy strip: Analisar · Compreender · Transformar ---- */
.philosophy-strip{
  display:flex; flex-wrap:wrap; gap:10px 28px; align-items:baseline;
  border-top:1px solid var(--line-dark); margin-top:70px; padding-top:22px;
  font-family:var(--font-display); font-weight:600; font-size:.95rem;
  letter-spacing:.04em; text-transform:uppercase; color:var(--muted-dark);
}
.philosophy-strip .word{color:var(--gold);}
.philosophy-strip .sep{opacity:.4; font-weight:400;}

/* Lista simples de conceitos técnicos (ex.: pilha de conceitos da Nexa) */
.tech-tags{
  display:flex; flex-wrap:wrap; gap:8px 22px; margin-top:36px;
  padding-top:20px; border-top:1px solid var(--line-dark);
  font-family:var(--font-mono); font-size:.78rem; letter-spacing:.04em;
  color:var(--muted-dark); text-transform:uppercase;
}

/* ---- Process steps ---- */
.process{display:grid; grid-template-columns:repeat(5,1fr); gap:1px; background:var(--line);}
.process .step{background:#fff; padding:32px 24px;}
.process .num{font-family:var(--font-mono); color:var(--accent); font-size:.85rem;}
.process h3{margin:14px 0 8px;}
.process p{color:var(--muted); font-size:.92rem;}
@media (max-width:900px){ .process{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .process{grid-template-columns:1fr;} }

/* ---- Service / offering grid ---- */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line);}
.grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line);}
.offer-card{background:#fff; padding:36px 30px;}
.offer-card .idx{font-family:var(--font-mono); font-size:.78rem; color:var(--accent);}
.offer-card h3{margin:14px 0 10px;}
.offer-card p{color:var(--muted); font-size:.94rem;}
@media (max-width:900px){ .grid-3{grid-template-columns:1fr 1fr;} }
@media (max-width:640px){ .grid-3, .grid-2{grid-template-columns:1fr;} }

/* ---- Verb grid: Construímos / Transformamos / Investigamos / Partilhamos ---- */
.verb-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:48px 40px;
}
.verb-card{border-top:1px solid var(--line); padding-top:22px;}
.verb-word{
  display:block; font-family:var(--font-display); font-weight:800; font-size:1.4rem;
  color:var(--ink); margin-bottom:16px; letter-spacing:-.01em;
}
.verb-card ul li{
  font-size:.94rem; color:var(--muted); padding:7px 0; border-bottom:1px solid var(--line);
}
.verb-card ul li:last-child{border-bottom:none;}
@media (max-width:900px){ .verb-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .verb-grid{grid-template-columns:1fr; gap:36px;} }

/* ---- Project cards ---- */
.projects-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:26px;}
.project-card{
  border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
  display:flex; flex-direction:column; transition:border-color .15s ease, transform .15s ease;
}
.project-card:hover{border-color:var(--navy-900); transform:translateY(-3px);}
.project-thumb{
  aspect-ratio:16/10; background:var(--navy-950); position:relative; overflow:hidden;
}
.project-thumb .node-art{position:absolute; inset:0; opacity:.9;}
.project-body{padding:22px 22px 26px;}
.project-tag{font-family:var(--font-mono); font-size:.72rem; letter-spacing:.06em; color:var(--accent); text-transform:uppercase;}
.project-card h3{margin:10px 0 8px;}
.project-card p{color:var(--muted); font-size:.9rem;}
.status-pill{
  display:inline-block; margin-top:14px; font-size:.75rem; font-family:var(--font-body);
  font-weight:500; color:var(--muted);
}
.status-pill::before{content:'— '; color:var(--gold);}
@media (max-width:960px){ .projects-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:640px){ .projects-grid{grid-template-columns:1fr;} }

/* ---- Stats ---- */
.stats{display:grid; grid-template-columns:repeat(5,1fr); gap:1px; background:var(--line-dark);}
.stat{background:var(--navy-950); padding:30px 20px; text-align:left;}
.stat .num{font-family:var(--font-display); font-weight:800; font-size:2.2rem;}
.stat .label{font-size:.82rem; color:var(--muted-dark); margin-top:6px;}
@media (max-width:900px){ .stats{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .stats{grid-template-columns:1fr;} }

/* ---- Footer ---- */
.site-footer{background:var(--navy-950); color:#fff; padding:80px 0 30px;}
.footer-top{
  display:grid; grid-template-columns:1.4fr repeat(4,1fr); gap:40px;
  padding-bottom:60px; border-bottom:1px solid var(--line-dark);
}
.footer-top h4{font-size:.8rem; text-transform:uppercase; letter-spacing:.06em; color:var(--muted-dark); margin-bottom:16px; font-family:var(--font-mono); font-weight:500;}
.footer-top ul li{margin-bottom:10px;}
.footer-top ul a{color:var(--muted-dark); font-size:.92rem;}
.footer-top ul a:hover{color:#fff;}
.footer-tagline{color:var(--muted-dark); margin-top:14px; max-width:32ch;}
.footer-philosophy{
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--gold); margin-top:12px;
}
.brand-mark{ height:36px; width:auto; border-radius:8px; }
.footer-bottom{display:flex; justify-content:space-between; align-items:center; padding-top:26px; flex-wrap:wrap; gap:14px;}
.footer-bottom p, .footer-bottom a{color:var(--muted-dark); font-size:.82rem;}
.footer-legal{display:flex; gap:20px;}
@media (max-width:900px){ .footer-top{grid-template-columns:1fr 1fr; row-gap:36px;} }

/* ---- Utility ---- */
.mt-lg{margin-top:80px;}
.center{text-align:center;}
.todo{
  border:1px dashed #c9cede; background:#fbfbfd; color:var(--muted);
  padding:14px 18px; border-radius:8px; font-size:.85rem; font-family:var(--font-mono);
}
.page-hero{padding:150px 0 70px; background:var(--paper-soft); border-bottom:1px solid var(--line);}
.page-hero h1{font-size:clamp(2rem,4vw,3.2rem);}
.reveal{opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1; transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1; transform:none; transition:none;}
  html{scroll-behavior:auto;}
}

/* ---- Page-specific additions (projects filter, team, blog, contact form) ---- */
.filters{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:50px;}
.filters button{
  font-family:var(--font-mono); font-size:.78rem; text-transform:uppercase; letter-spacing:.04em;
  padding:8px 16px; border-radius:100px; border:1px solid var(--line); background:#fff; cursor:pointer; color:var(--muted);
}
.filters button.active{background:var(--navy-950); color:#fff; border-color:var(--navy-950);}
.meta-row{display:flex; gap:10px; flex-wrap:wrap; margin-top:16px;}
.meta-row span{font-family:var(--font-mono); font-size:.72rem; padding:4px 10px; border:1px solid var(--line); border-radius:100px; color:var(--muted);}
.project-detail{padding:70px 0; border-top:1px solid var(--line); scroll-margin-top:100px;}

.team-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:26px;}
.team-card-mini{display:block; text-align:center;}
.team-photo{aspect-ratio:1/1; background:var(--paper-soft); border-radius:50%; overflow:hidden; margin:0 auto 16px; width:100%; max-width:180px; display:flex; align-items:center; justify-content:center;}
.team-photo img{width:100%; height:100%; object-fit:cover;}
.team-photo-placeholder{font-family:var(--font-display); font-size:2.4rem; font-weight:700; color:var(--muted);}
.team-card-mini h3{font-size:1rem; margin-top:6px;}
.team-role{font-family:var(--font-mono); font-size:.75rem; color:var(--gold); margin-top:4px;}
.team-links{display:flex; gap:10px; justify-content:center; margin-top:10px;}
.team-link-tag{font-size:.72rem; color:var(--muted); font-family:var(--font-mono);}
.team-photo-lg{
  aspect-ratio:4/5; border-radius:12px; overflow:hidden; background:var(--paper-soft);
  display:flex; align-items:center; justify-content:center;
}
.team-photo-lg img{width:100%; height:100%; object-fit:cover;}
.team-photo-lg .team-photo-placeholder{font-size:4rem;}
@media (max-width:960px){ .team-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .team-grid{grid-template-columns:1fr;} }

.article-card{border:1px solid var(--line); border-radius:var(--radius); padding:26px; display:flex; flex-direction:column; gap:10px;}
.article-meta{font-family:var(--font-mono); font-size:.72rem; color:var(--muted); text-transform:uppercase; letter-spacing:.04em;}

.form-grid{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
.field{display:flex; flex-direction:column; gap:8px; margin-bottom:20px;}
.field.full{grid-column:1 / -1;}
.field label{font-family:var(--font-mono); font-size:.75rem; text-transform:uppercase; letter-spacing:.05em; color:var(--muted);}
.field input, .field select, .field textarea{
  font-family:var(--font-body); font-size:.95rem; padding:12px 14px;
  border:1px solid var(--line); border-radius:8px; background:#fff; color:var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus{outline:2px solid var(--accent); outline-offset:1px;}
.field textarea{resize:vertical; min-height:120px;}
.field .errorlist{list-style:none; margin:2px 0 0; padding:0; color:#c0392b; font-size:.8rem;}
.contact-side .item{padding:18px 0; border-top:1px solid var(--line);}
.contact-side .item:first-child{border-top:none;}
.contact-side h4{font-family:var(--font-mono); font-size:.75rem; text-transform:uppercase; color:var(--muted); letter-spacing:.05em;}
.contact-side a{display:block; margin-top:6px; font-weight:600;}
.alert{padding:16px 20px; border-radius:8px; background:var(--accent-soft); color:var(--navy-900); margin-bottom:30px; font-size:.9rem;}
@media (max-width:760px){ .form-grid{grid-template-columns:1fr;} }