/* ============================================
   CSE Tecnologia — Design System
   "Midnight Executive": navy + champagne gold + cream
   Signature motif: diagrama unifilar (single-line diagram)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,500;0,600;0,700;1,500&family=Poppins:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* Color */
  --navy-deep:   #071427;
  --navy:        #0B1D33;
  --navy-soft:   #16304F;
  --gold:        #C9A667;
  --gold-soft:   #DCC48F;
  --gold-line:   rgba(201,166,103,0.35);
  --cream:       #F7F3EA;
  --cream-warm:  #F1E9D8;
  --ink:         #14213D;
  --slate:       #5C6B82;
  --slate-soft:  #8B96A8;
  --white:       #FFFFFF;
  --line-dark:   rgba(247,243,234,0.14);
  --line-light:  rgba(20,33,61,0.12);

  /* Type */
  --font-display: 'Lora', Georgia, serif;
  --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --max-w: 1180px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 2px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 .5em;
  color: var(--navy);
}
p{ margin:0 0 1em; color: var(--slate); }
.container{
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior:auto !important; }
}

/* ---------- Eyebrow / Kicker ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  display:flex;
  align-items:center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before{
  content:'';
  width: 22px; height:1px;
  background: var(--gold);
  display:inline-block;
}
.eyebrow--dark{ color: var(--gold-soft); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14.5px;
  letter-spacing: 0.01em;
  padding: 14px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background: var(--gold); color: var(--navy-deep); }
.btn-primary:hover{ background: var(--gold-soft); }
.btn-ghost-dark{ border-color: var(--line-dark); color: var(--cream); }
.btn-ghost-dark:hover{ border-color: var(--gold); color: var(--gold-soft); }
.btn-ghost-light{ border-color: var(--line-light); color: var(--navy); }
.btn-ghost-light:hover{ border-color: var(--gold); color: var(--navy); background: var(--cream-warm); }
.btn svg{ width:16px; height:16px; }

/* ---------- Nav ---------- */
.nav{
  position: sticky; top:0; z-index: 50;
  background: rgba(11,29,51,0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding-top: 16px; padding-bottom:16px;
}
.brand{
  font-family: var(--font-display);
  font-weight:700;
  font-size: 19px;
  color: var(--cream);
  display:flex; align-items:baseline; gap:8px;
}
.brand span{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing:.14em;
  color: var(--gold);
  text-transform:uppercase;
  font-weight:400;
}
.nav-links{
  display:flex; align-items:center; gap: 34px;
}
.nav-links a{
  font-size: 14px;
  color: var(--cream);
  opacity:.82;
  position:relative;
  padding: 4px 0;
}
.nav-links a:hover{ opacity:1; color: var(--gold-soft); }
.nav-links a.active{ opacity:1; color: var(--gold); }
.nav-cta{ display:flex; align-items:center; gap:18px; }
.nav-wa{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-soft);
  display:flex; align-items:center; gap:8px;
}
.nav-toggle{ display:none; background:none; border:none; cursor:pointer; }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after{
  content:''; display:block; width:24px; height:2px; background:var(--cream); margin:5px 0; transition:.2s;
}

@media (max-width: 900px){
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:flex-start;
    background: var(--navy);
    padding: 24px var(--pad) 30px;
    gap: 18px;
    border-bottom: 1px solid var(--line-dark);
    display:none;
  }
  .nav-links.open{ display:flex; }
  .nav-toggle{ display:block; }
  .nav-wa{ display:none; }
}

/* ---------- Hero ---------- */
.hero{
  background: radial-gradient(ellipse at 78% 15%, var(--navy-soft) 0%, var(--navy) 45%, var(--navy-deep) 100%);
  color: var(--cream);
  position:relative;
  overflow:hidden;
  padding: 96px 0 108px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items:center;
  position:relative;
  z-index:2;
}
.hero h1{
  color: var(--cream);
  font-size: clamp(2.1rem, 4.2vw, 3.35rem);
  max-width: 15ch;
}
.hero p.lead{
  color: var(--slate-soft);
  font-size: 17px;
  max-width: 46ch;
  margin-bottom: 34px;
}
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }
.hero-diagram{ position:relative; }
.hero-diagram svg{ width:100%; height:auto; }

@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-diagram{ order:-1; max-width: 320px; margin:0 auto 12px; }
}

/* ---------- Stat strip ---------- */
.stat-strip{
  background: var(--navy-deep);
  border-top: 1px solid var(--line-dark);
  padding: 30px 0;
}
.stat-row{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.stat{ border-left: 1px solid var(--line-dark); padding-left: 22px; }
.stat:first-child{ border-left:none; padding-left:0; }
.stat .num{
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  display:block;
  margin-bottom: 4px;
}
.stat .label{ color: var(--slate-soft); font-size: 13px; }
@media (max-width: 700px){
  .stat-row{ grid-template-columns:1fr; gap:18px; }
  .stat{ border-left:none; border-top:1px solid var(--line-dark); padding:16px 0 0; }
  .stat:first-child{ border-top:none; padding-top:0; }
}

/* ---------- Section base ---------- */
.section{ padding: 96px 0; }
.section-cream{ background: var(--cream); }
.section-warm{ background: var(--cream-warm); }
.section-navy{ background: var(--navy); color: var(--cream); }
.section-navy h2{ color: var(--cream); }
.section-navy p{ color: var(--slate-soft); }
.section-head{ max-width: 640px; margin-bottom: 56px; }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.35rem); }

/* ---------- Service cards ---------- */
.card-grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--line-light);
  border: 1px solid var(--line-light);
}
.service-card{
  background: var(--cream);
  padding: 40px 32px;
  transition: background .2s ease;
}
.service-card:hover{ background: var(--white); }
.service-card h3{ font-size: 1.2rem; margin-bottom: 12px; }
.service-card .icon{ margin-bottom: 22px; }
.service-card .icon svg{ width:34px; height:34px; stroke: var(--gold); }
.service-card a.more{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--navy);
  letter-spacing:.04em;
  display:inline-flex; align-items:center; gap:6px;
  margin-top: 14px;
  border-bottom: 1px solid var(--gold-line);
  padding-bottom:2px;
}
@media (max-width: 860px){
  .card-grid-3{ grid-template-columns:1fr; }
}

/* ---------- Why-us bullets ---------- */
.split{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items:start;
}
.check-list{ margin-top: 28px; }
.check-list li{
  display:flex; gap:14px;
  padding: 16px 0;
  border-top: 1px solid var(--line-light);
  color: var(--ink);
  font-size: 15px;
}
.check-list li:last-child{ border-bottom:1px solid var(--line-light); }
.check-list svg{ flex:none; width:18px; height:18px; margin-top:2px; stroke: var(--gold); }
.section-navy .check-list li{ border-color: var(--line-dark); color: var(--cream); }
@media (max-width: 860px){ .split{ grid-template-columns:1fr; gap:32px; } }

/* ---------- Process steps ---------- */
.steps{ counter-reset: step; margin-top: 20px; }
.step{
  display:grid; grid-template-columns: 64px 1fr; gap: 22px;
  padding: 26px 0; border-top: 1px solid var(--line-light);
}
.step:last-child{ border-bottom: 1px solid var(--line-light); }
.step .n{
  counter-increment: step;
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 13px;
}
.step .n::before{ content: "0" counter(step); font-size: 22px; color: var(--navy); display:block; }
.step h4{ font-family: var(--font-body); font-weight:600; font-size:16px; margin-bottom:6px; color: var(--navy); }
.step p{ margin:0; font-size:14.5px; }
@media (max-width: 600px){ .step{ grid-template-columns: 40px 1fr; gap:14px; } }

/* ---------- Client cards ---------- */
.card-grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.client-card{
  background: var(--white);
  border: 1px solid var(--line-light);
  padding: 30px;
}
.client-card .tag{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-line);
  padding: 4px 10px;
  display:inline-block;
  margin-bottom: 16px;
}
.client-card h3{ font-size: 1.05rem; margin-bottom: 8px; }
.client-card .meta{ font-family: var(--font-mono); font-size:12.5px; color: var(--slate-soft); margin-bottom: 14px; }
.client-card .result{ font-size: 14px; color: var(--ink); border-top: 1px dashed var(--line-light); padding-top:14px; }
@media (max-width: 760px){ .card-grid-2{ grid-template-columns:1fr; } }

/* ---------- Blog ---------- */
.card-grid-blog{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-cat{
  background: var(--navy); color: var(--cream);
  padding: 34px 28px;
}
.blog-cat .eyebrow{ margin-bottom: 20px; }
.blog-cat h3{ color:var(--cream); font-size:1.15rem; }
.blog-cat p{ color: var(--slate-soft); font-size:14px; margin-bottom:0; }
@media (max-width: 900px){ .card-grid-blog{ grid-template-columns:1fr; } }

.post-placeholder{
  border: 1px dashed var(--line-light);
  padding: 40px;
  text-align:center;
  color: var(--slate-soft);
  font-size: 14px;
  margin-top: 40px;
}

/* ---------- Form ---------- */
.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-size: 12.5px; font-family: var(--font-mono); letter-spacing:.04em; color: var(--slate); text-transform:uppercase; }
.field input, .field select, .field textarea{
  font-family: var(--font-body);
  font-size: 15px;
  padding: 13px 14px;
  border: 1px solid var(--line-light);
  background: var(--white);
  color: var(--ink);
  border-radius: var(--radius);
}
.field textarea{ min-height: 120px; resize: vertical; }
@media (max-width: 700px){ .form-grid{ grid-template-columns:1fr; } .field.full{ grid-column:auto; } }

/* ---------- Contact direct cards ---------- */
.contact-direct{ display:grid; grid-template-columns: repeat(3,1fr); gap:2px; background:var(--line-dark); margin-top:56px; border:1px solid var(--line-dark);}
.contact-direct .item{ background: var(--navy-deep); padding: 28px; }
.contact-direct .item .k{ font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--gold); display:block; margin-bottom:10px; }
.contact-direct .item .v{ color: var(--cream); font-size:15px; }
@media (max-width:860px){ .contact-direct{ grid-template-columns:1fr; } }

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--navy-deep);
  color: var(--cream);
  padding: 76px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-band h2{ color: var(--cream); max-width: 20ch; margin:0 auto 18px; }
.cta-band p{ max-width: 48ch; margin:0 auto 34px; color: var(--slate-soft); }
.cta-band .hero-actions{ justify-content:center; }

/* ---------- Footer ---------- */
.site-footer{ background: var(--navy-deep); color: var(--slate-soft); padding: 64px 0 32px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; margin-bottom:48px; }
.footer-grid h4{ color: var(--gold-soft); font-family: var(--font-mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; margin-bottom:18px; }
.footer-grid .brand{ margin-bottom: 14px; }
.footer-grid p{ color: var(--slate-soft); font-size:14px; max-width:36ch; }
.footer-links li{ margin-bottom:10px; }
.footer-links a{ font-size:14px; color: var(--slate-soft); }
.footer-links a:hover{ color: var(--gold-soft); }
.footer-bottom{
  border-top: 1px solid var(--line-dark);
  padding-top: 26px;
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;
  font-size: 12.5px;
  font-family: var(--font-mono);
  color: var(--slate-soft);
}
.badges{ display:flex; gap:14px; }
@media (max-width: 800px){ .footer-grid{ grid-template-columns:1fr; gap:30px; } }

/* ---------- Placeholder marker ---------- */
.fill{
  color: #9a5b2c;
  background: #FBEFE1;
  padding: 1px 6px;
  border: 1px dashed #C98A4B;
  font-family: var(--font-mono);
  font-size: 0.92em;
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  background: var(--navy);
  color: var(--cream);
  padding: 68px 0 56px;
  position:relative;
  overflow:hidden;
}
.page-hero h1{ color: var(--cream); font-size: clamp(1.9rem, 3.6vw, 2.7rem); max-width:20ch; }
.page-hero p{ color: var(--slate-soft); max-width: 52ch; }