/* ============================================================
   CEGAVI — Design System
   Shared across all pages (EN + PT)
   ============================================================ */

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* ── TOKENS ── */
:root {
  /* Brand palette */
  --ink:    #0A0A0F;
  --ink2:   #1C1C28;
  --ink3:   #3D3D52;
  --ink4:   #72728A;
  --blue:   #1A6BFF;
  --blue2:  #0A5BEF;
  --blue3:  rgba(26,107,255,.12);
  --blue4:  rgba(26,107,255,.06);
  --teal:   #00A98B;
  --teal2:  #008F76;
  --teal3:  rgba(0,169,139,.15);
  --teal4:  rgba(0,169,139,.07);
  --white:  #FFFFFF;
  --gray1:  #F5F5F5;
  --gray2:  #EBEBEB;
  --bd:     #E8E8E8;
  --bd2:    #CCCCCC;

  /* Typography */
  --f:  'DM Sans', system-ui, sans-serif;
  --fm: 'DM Mono', 'JetBrains Mono', monospace;

  /* Spacing scale */
  --s1: 4px;  --s2: 8px;  --s3: 12px; --s4: 16px;
  --s5: 24px; --s6: 32px; --s7: 48px; --s8: 64px;
  --s9: 96px; --s10: 128px;

  /* Layout */
  --max: 1140px;
  --radius: 12px;
  --radius-lg: 16px;
}

/* ── BASE ── */
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--white);
  color: var(--ink);
  font-family: var(--f);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--blue); color: #fff; }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-thumb { background: var(--bd2); border-radius: 2px; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--f);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
h1 { font-size: clamp(36px, 6vw, 80px); letter-spacing: -0.03em; }
h2 { font-size: clamp(26px, 4vw, 48px); }
h3 { font-size: clamp(20px, 2.5vw, 28px); }
h4 { font-size: 18px; }
p  { color: var(--ink3); line-height: 1.75; }
a  { color: var(--blue); text-decoration: none; transition: color .14s; }
a:hover { color: var(--blue2); }
img { max-width: 100%; height: auto; display: block; }
code, pre { font-family: var(--fm); }
code {
  background: var(--gray1);
  border: 1px solid var(--bd);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: .88em;
  color: var(--ink2);
}

/* ── LAYOUT ── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--s5); }
.section    { padding: var(--s9) var(--s5); }
.section-sm { padding: var(--s7) var(--s5); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s6); }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s5); }

/* ── LOGO ── */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-wordmark {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1;
}
.logo-ce { color: var(--ink); }
.logo-ga { color: var(--blue); }
.logo-vi { color: var(--teal); }
.logo-sub {
  font-family: var(--fm);
  font-size: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink4);
  margin-top: 2px;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 var(--s6);
  transition: all .3s;
}
.nav.scrolled {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--bd);
  box-shadow: 0 1px 16px rgba(10,10,15,.06);
}
.nav-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--s4);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--s6);
  margin: 0 auto;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink3);
  text-decoration: none;
  transition: color .13s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: var(--s2); flex-shrink: 0; }

/* Language pill in nav */
.lang-pill {
  display: flex;
  align-items: center;
  border: 1px solid var(--bd);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--fm);
  font-size: 11px;
  font-weight: 600;
}
.lang-pill a {
  padding: 5px 10px;
  color: var(--ink4);
  text-decoration: none;
  transition: all .13s;
}
.lang-pill a:hover { background: var(--gray1); color: var(--ink); }
.lang-pill a.active { background: var(--ink); color: #fff; }
.lang-pill span { width: 1px; background: var(--bd); align-self: stretch; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: var(--f);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all .14s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-primary:hover {
  background: var(--blue2);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,107,255,.25);
}
.btn-ghost {
  background: transparent;
  color: var(--ink3);
  border: 1px solid var(--bd2);
}
.btn-ghost:hover {
  background: var(--gray1);
  color: var(--ink);
  border-color: var(--bd);
}
.btn-teal {
  background: var(--teal);
  color: #fff;
}
.btn-teal:hover {
  background: var(--teal2);
  color: #fff;
  box-shadow: 0 6px 20px rgba(0,169,139,.2);
}
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: 10px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }

/* ── BADGES ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px;
  border-radius: 20px;
  font-family: var(--fm);
  font-size: 11px;
  letter-spacing: .5px;
}
.badge-teal  { border: 1px solid var(--teal3); background: var(--teal4); color: var(--teal); }
.badge-blue  { border: 1px solid var(--blue3); background: var(--blue4); color: var(--blue); }
.badge-dot   { width: 5px; height: 5px; border-radius: 50%; background: currentColor; animation: blink 2s infinite; }
@keyframes blink { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.8)} }

/* ── SECTION LABELS ── */
.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--fm);
  font-size: 10px;
  color: var(--teal);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-label::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--teal);
}

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--bd);
  border-radius: var(--radius);
  padding: var(--s6);
  transition: all .2s;
}
.card:hover {
  box-shadow: 0 6px 28px rgba(10,10,15,.09);
  transform: translateY(-2px);
  border-color: var(--bd2);
}
.card-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: var(--s4);
}
.card-icon-blue { background: var(--blue4); border: 1px solid var(--blue3); }
.card-icon-teal { background: var(--teal4); border: 1px solid var(--teal3); }
.card-title { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.card-desc  { font-size: 14px; color: var(--ink3); line-height: 1.65; }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px var(--s5) 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 30% 40%, rgba(26,107,255,.04), transparent),
    radial-gradient(ellipse 50% 40% at 70% 60%, rgba(0,169,139,.03), transparent);
  pointer-events: none;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--bd) 1px, transparent 1px),
    linear-gradient(90deg, var(--bd) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  opacity: .4;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 820px; }
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s3);
  flex-wrap: wrap;
  margin-bottom: var(--s8);
}
.hero-kpis {
  display: inline-flex;
  justify-content: center;
  gap: var(--s7);
  padding: 22px 40px;
  background: var(--white);
  border: 1px solid var(--bd);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 24px rgba(10,10,15,.06);
}
.kpi-value { font-size: 30px; font-weight: 900; letter-spacing: -.03em; line-height: 1; }
.kpi-value.blue { color: var(--blue); }
.kpi-value.teal { color: var(--teal); }
.kpi-label {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--ink4);
  margin-top: 5px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.kpi-sep { width: 1px; background: var(--bd); align-self: stretch; }

/* ── FORMS ── */
.form-field { margin-bottom: 12px; }
.form-label {
  display: block;
  font-family: var(--fm);
  font-size: 9px;
  color: var(--ink4);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 5px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 11px 14px;
  border-radius: 8px;
  border: 1px solid var(--bd);
  background: var(--white);
  font-size: 14px;
  color: var(--ink);
  font-family: var(--f);
  outline: none;
  transition: border-color .14s;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue4);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--ink4); }
.form-textarea { resize: vertical; line-height: 1.5; }
.form-select { cursor: pointer; }

/* ── CHECKBOX GROUP (platforms) ── */
.check-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.check-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1.5px solid var(--bd);
  border-radius: 20px;
  cursor: pointer;
  transition: border-color .13s, background .13s, color .13s;
  font-size: 13px;
  color: var(--ink3);
  background: var(--white);
  user-select: none;
  white-space: nowrap;
}
.check-item:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.check-item input[type="checkbox"] { display: none; }
.check-item:has(input:checked) {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

/* ── FOOTER ── */
.footer {
  padding: 52px var(--s6) 32px;
  border-top: 1px solid var(--bd);
  background: var(--gray1);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--s7);
  margin-bottom: var(--s7);
}
.footer-brand-desc { font-size: 13px; color: var(--ink4); line-height: 1.65; margin: 12px 0 8px; }
.footer-email { font-family: var(--fm); font-size: 12px; color: var(--ink4); }
.footer-col-title {
  font-family: var(--fm);
  font-size: 9px;
  color: var(--ink4);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.footer-links a { font-size: 14px; color: var(--ink3); text-decoration: none; transition: color .13s; }
.footer-links a:hover { color: var(--ink); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--bd);
  font-size: 13px;
  color: var(--ink4);
}

/* ── ARTICLE / BLOG ── */
.article-header { padding: 120px var(--s5) var(--s8); text-align: center; }
.article-header .badge { margin-bottom: var(--s5); }
.article-header h1 { max-width: 760px; margin: 0 auto var(--s4); }
.article-header .article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s5);
  font-family: var(--fm);
  font-size: 11px;
  color: var(--ink4);
  letter-spacing: .5px;
  margin-top: var(--s4);
}
.article-cover {
  width: 100%;
  max-width: 860px;
  margin: 0 auto var(--s8);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--bd);
}
.article-cover img { width: 100%; height: 420px; object-fit: cover; }
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--s5) var(--s10);
}
.article-body h2 { margin: var(--s8) 0 var(--s4); font-size: clamp(22px, 3vw, 32px); }
.article-body h3 { margin: var(--s6) 0 var(--s3); font-size: clamp(18px, 2.5vw, 24px); }
.article-body p  { margin-bottom: var(--s5); font-size: 17px; color: var(--ink2); line-height: 1.8; }
.article-body ul, .article-body ol {
  margin: 0 0 var(--s5) var(--s6);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}
.article-body li { font-size: 17px; color: var(--ink2); line-height: 1.7; }
.article-body blockquote {
  border-left: 3px solid var(--teal);
  margin: var(--s6) 0;
  padding: var(--s4) var(--s6);
  background: var(--teal4);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.article-body blockquote p {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  font-style: italic;
  margin: 0;
}
.article-body .callout {
  background: var(--blue4);
  border: 1px solid var(--blue3);
  border-radius: var(--radius);
  padding: var(--s5);
  margin: var(--s6) 0;
}
.article-body .callout p { margin: 0; font-size: 15px; }
.article-body img {
  border-radius: var(--radius);
  border: 1px solid var(--bd);
  margin: var(--s6) 0;
}
.article-body .img-caption {
  text-align: center;
  font-family: var(--fm);
  font-size: 12px;
  color: var(--ink4);
  margin-top: -var(--s4);
  margin-bottom: var(--s6);
}

/* Blog index grid */
.blog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s6); }
.blog-card { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--bd); transition: all .2s; text-decoration: none; display: block; color: inherit; }
.blog-card:hover { box-shadow: 0 8px 32px rgba(10,10,15,.1); transform: translateY(-3px); border-color: var(--bd2); }
.blog-card-img { width: 100%; height: 200px; object-fit: cover; background: var(--gray1); }
.blog-card-body { padding: var(--s5); }
.blog-card-tag {
  font-family: var(--fm);
  font-size: 10px;
  color: var(--teal);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.blog-card-title { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 8px; line-height: 1.3; }
.blog-card-excerpt { font-size: 14px; color: var(--ink3); line-height: 1.6; margin-bottom: var(--s4); }
.blog-card-meta { font-family: var(--fm); font-size: 11px; color: var(--ink4); }

/* ── UTILITY ── */
.text-blue   { color: var(--blue); }
.text-teal   { color: var(--teal); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-4 { margin-bottom: var(--s4); }
.mb-5 { margin-bottom: var(--s5); }
.mb-6 { margin-bottom: var(--s6); }
.mb-8 { margin-bottom: var(--s8); }

/* ── HAMBURGER ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: none; border: none;
  cursor: pointer; padding: 4px;
  border-radius: 8px;
  transition: background .13s;
}
.nav-toggle:hover { background: var(--gray1); }
.nav-toggle span {
  display: block; height: 2px; width: 22px;
  background: var(--ink); border-radius: 2px;
  transition: all .22s;
}
/* Animated to X when open */
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE NAV OVERLAY ── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--bd);
  box-shadow: 0 8px 32px rgba(10,10,15,.08);
  z-index: 99;
  padding: var(--s5) var(--s6);
  flex-direction: column;
  gap: var(--s3);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 16px; font-weight: 500;
  color: var(--ink3); text-decoration: none;
  padding: 12px 0;
  border-bottom: 1px solid var(--bd);
  transition: color .13s;
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover, .mobile-nav a.active { color: var(--blue); }
.mobile-nav .mobile-nav-cta {
  margin-top: var(--s3);
  display: flex; gap: var(--s2);
}

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-right .btn-ghost { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--s6); }
  .blog-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  :root { --s9: 64px; }
  .grid-2, .grid-3, .footer-grid, .blog-grid { grid-template-columns: 1fr; }
  .hero-kpis { gap: var(--s5); padding: 20px 24px; flex-wrap: wrap; }
  .btn-lg { padding: 12px 22px; font-size: 15px; }
  .hero-kpis .kpi-sep { display: none; }
  .container { padding: 0 var(--s4); }
  .section { padding: var(--s8) var(--s4); }
  h1 { font-size: clamp(32px, 8vw, 56px); }
}