/* =========================================================
   TOKENS
========================================================= */
:root{
  --ink:        #10151C;
  --paper:      #E7E9ED;
  --paper-hi:   #F3F4F6;
  --line:       #CDD2D9;
  --navy:       #1B2A4A;
  --navy-dark:  #101A30;
  --copper:     #B5722F;
  --copper-dark:#8F5A24;
  --slate:      #5C7A99;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body:    "Sora", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;

  --radius: 10px;
  --shadow: 0 18px 40px -18px rgba(16,21,28,0.4);
  --wrap: 1140px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2.1rem, 4.2vw, 3.2rem); }
h2{ font-size: clamp(1.5rem, 2.8vw, 2.1rem); }
h3{ font-size: 1.25rem; }
p{ margin: 0 0 1em; }
a{ color: inherit; }

.wrap{ max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}
.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--ink); color:var(--paper-hi); padding:10px 16px; z-index:200;
}
.skip-link:focus{ left:16px; top:16px; }

:focus-visible{
  outline: 3px solid var(--copper);
  outline-offset: 2px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--slate);
  margin: 0 0 .6em;
}

.hl{ color: var(--copper); }

/* =========================================================
   BUTTONS
========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding: .85em 1.6em;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight:600;
  font-size: .95rem;
  text-decoration:none;
  cursor:pointer;
  border: 1.5px solid transparent;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background: var(--copper); color: var(--paper-hi); }
.btn-primary:hover{ background: var(--copper-dark); }
.btn-ghost{ background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover{ background: var(--ink); color: var(--paper-hi); }
.btn-block{ width: 100%; }

/* =========================================================
   HEADER
========================================================= */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(231,233,237,0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-row{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 24px;
}
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink); }
.brand-mark{ color: var(--copper); display:flex; }
.brand-text{ font-family: var(--font-display); font-weight:700; font-size:1.2rem; letter-spacing: .02em; }
.brand-text.small{ font-size:1.05rem; }

.site-nav{ display:flex; align-items:center; gap: 28px; font-size:.94rem; }
.site-nav a{ text-decoration:none; color:var(--ink); }
.site-nav a:hover{ color: var(--copper); }
.nav-cta{
  font-family: var(--font-mono);
  font-size:.8rem;
  padding: .6em 1.1em;
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
}
.nav-cta:hover{ background: var(--ink); color: var(--paper-hi); }

.nav-toggle{
  display:none; flex-direction:column; gap:5px;
  background:none; border:none; cursor:pointer; padding: 8px;
}
.nav-toggle span{ width:22px; height:2px; background: var(--ink); display:block; }

@media (max-width: 860px){
  .nav-toggle{ display:flex; }
  .site-nav{
    position:absolute; top:100%; left:0; right:0;
    background: var(--paper-hi);
    flex-direction:column; align-items:flex-start; gap:0;
    border-bottom: 1px solid var(--line);
    max-height:0; overflow:hidden; transition: max-height .25s ease;
  }
  .site-nav.open{ max-height: 300px; }
  .site-nav a{ padding: 14px 24px; width:100%; border-top:1px solid var(--line); }
  .nav-cta{ margin: 14px 24px; border-radius: var(--radius); }
}

/* =========================================================
   HERO
========================================================= */
.hero{ padding: 64px 0 80px; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items:center;
}
.lede{ font-size: 1.08rem; max-width: 46ch; color:#3B4552; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin: 26px 0 34px; }

.hero-stats{ list-style:none; display:flex; gap:32px; padding:0; margin:0; }
.hero-stats .num{
  display:block; font-family: var(--font-mono); font-weight:600;
  font-size:1.25rem; color: var(--navy);
}
.hero-stats .label{ font-size:.78rem; color:#5C6572; }

.hero-visual{ display:flex; justify-content:center; }
.gauge-panel{
  width: 100%; max-width: 340px;
  background: var(--navy-dark);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 28px 24px;
  color: var(--paper-hi);
}
.gauge-label{
  font-family: var(--font-mono); font-size:.7rem; letter-spacing:.1em;
  color: #7C8DA6; margin: 0 0 6px;
}
.gauge{ padding: 6px 0 0; }
.gauge-readout{
  display:flex; justify-content:space-between; align-items:baseline;
  border-top: 1px solid rgba(243,241,236,0.12);
  border-bottom: 1px solid rgba(243,241,236,0.12);
  padding: 12px 0; margin: 8px 0 16px;
  font-family: var(--font-mono);
}
.rd-label{ font-size:.7rem; letter-spacing:.08em; color:#7C8DA6; }
.rd-value{ font-size:.85rem; font-weight:600; color: var(--copper); }
.sparkline{ opacity:.9; }

/* =========================================================
   ARTICLES
========================================================= */
.articles{ background: var(--navy-dark); color: var(--paper-hi); padding: 84px 0; }
.articles .eyebrow{ color: #7C8DA6; }
.articles h2{ color: var(--paper-hi); }
.section-head{ max-width: 640px; margin-bottom: 48px; }
.section-lede{ color:#A9B4C2; }

.article-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 900px){ .article-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px){ .article-grid{ grid-template-columns: 1fr; } }

.article-card{
  background: var(--paper-hi);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 26px 24px 22px;
  text-align:left;
  border: none;
  cursor:pointer;
  display:flex; flex-direction:column; gap: 10px;
  box-shadow: var(--shadow);
  transition: transform .18s ease;
}
.article-card:hover{ transform: translateY(-4px); }
.card-tag{
  display:inline-flex; align-items:center; gap:6px;
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing:.06em;
  color: var(--copper);
}
.card-tag::before{
  content:""; width:7px; height:7px; border-radius:50%; background: var(--copper);
}
.article-card h3{ font-size: 1.12rem; margin:0; }
.card-excerpt{ font-size:.92rem; color:#4A5560; margin:0; flex-grow:1; }
.card-read{
  font-family: var(--font-mono); font-size:.78rem; color: var(--navy);
  font-weight:600;
}

/* =========================================================
   MÉTODO / INDICADORES
========================================================= */
.method{ padding: 88px 0; }
.method-grid{
  display:grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items:start;
}
.method-copy p{ max-width: 42ch; color:#3B4552; }

.method-cards{ display:grid; gap: 14px; }
.metric-card{
  display:grid; grid-template-columns: 40px 1fr; column-gap: 14px; row-gap:4px;
  background: var(--paper-hi);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.metric-tag{
  font-family: var(--font-mono); font-weight:700; font-size:1.3rem;
  color: var(--copper); grid-row: span 2; align-self:center;
}
.metric-name{ font-family: var(--font-display); font-weight:600; font-size:1.02rem; }
.metric-desc{ font-size:.88rem; color:#5C6572; }

@media (max-width: 860px){ .method-grid{ grid-template-columns:1fr; } }

/* =========================================================
   SOBRE
========================================================= */
.about{ background: var(--ink); color: var(--paper-hi); padding: 84px 0; }
.about-grid{ display:grid; grid-template-columns: 1.3fr .9fr; gap: 56px; }
.about h2{ color: var(--paper-hi); }
.about .eyebrow{ color: var(--copper); }
.about-copy p{ color:#B7BEC7; max-width: 52ch; }

.about-facts{ margin-top: 26px; display:grid; gap: 14px; }
.about-facts > div{ border-top: 1px solid rgba(243,244,246,0.12); padding-top: 10px; }
.about-facts dt{ font-family: var(--font-mono); font-size:.72rem; letter-spacing:.06em; color:#7C8DA6; }
.about-facts dd{ margin:2px 0 0; font-size:.95rem; }

.about-note{
  background: rgba(243,244,246,0.05);
  border: 1px solid rgba(243,244,246,0.14);
  border-radius: var(--radius);
  padding: 26px;
  align-self:start;
  font-size:.92rem;
  color:#B7BEC7;
}

@media (max-width: 860px){ .about-grid{ grid-template-columns:1fr; } }

/* =========================================================
   CONTATO
========================================================= */
.contact{ padding: 88px 0; }
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-copy p{ color:#3B4552; max-width: 42ch; }
.contact-list{ list-style:none; padding:0; margin: 22px 0 0; display:grid; gap:8px; font-size:.94rem; }

.contact-form{
  background: var(--paper-hi);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}
.field{ margin-bottom: 18px; }
.field label{ display:block; font-family: var(--font-mono); font-size:.76rem; letter-spacing:.04em; margin-bottom:6px; color:#5C6572; }
.field input, .field textarea{
  width:100%; padding: .75em .9em; border: 1.5px solid var(--line);
  border-radius: 6px; font-family: var(--font-body); font-size:.95rem;
  background: var(--paper); color: var(--ink);
}
.field input:focus, .field textarea:focus{ border-color: var(--copper); }
.form-status{ margin: 12px 0 0; font-size:.88rem; min-height: 1.2em; color: var(--navy); font-weight:600; }

@media (max-width: 860px){ .contact-grid{ grid-template-columns:1fr; } }

/* =========================================================
   MODAL
========================================================= */
.modal-overlay{
  position: fixed; inset:0; background: rgba(16,21,28,0.7);
  display:flex; align-items:center; justify-content:center;
  padding: 24px; opacity:0; pointer-events:none; transition: opacity .2s ease;
  z-index: 300;
}
.modal-overlay.open{ opacity:1; pointer-events:auto; }
.modal{
  background: var(--paper-hi); max-width: 640px; width:100%;
  max-height: 84vh; overflow-y:auto;
  border-radius: var(--radius); padding: 40px 36px 34px;
  position:relative; box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
  transform: translateY(10px); transition: transform .2s ease;
}
.modal-overlay.open .modal{ transform: translateY(0); }
.modal-close{
  position:absolute; top:16px; right:16px; width:36px; height:36px;
  border-radius:50%; border:1.5px solid var(--ink); background:transparent;
  font-size:1.3rem; line-height:1; cursor:pointer; color: var(--ink);
}
.modal-close:hover{ background: var(--ink); color: var(--paper-hi); }
.modal-tag{ font-family: var(--font-mono); font-size:.75rem; letter-spacing:.06em; color: var(--copper); margin-bottom:6px; }
.modal-body p{ color:#3B4552; }
.modal-body p:last-child{ margin-bottom:0; }

/* =========================================================
   FOOTER
========================================================= */
.site-footer{ background: var(--navy-dark); color:#9AA6B4; padding: 48px 0 26px; }
.footer-grid{ display:flex; justify-content:space-between; gap:32px; flex-wrap:wrap; padding-bottom: 24px; border-bottom: 1px solid rgba(154,166,180,0.15); }
.footer-fine{ font-size:.82rem; margin-top:10px; color:#7C8898; }
.footer-links{ display:flex; gap:22px; align-items:flex-start; font-size:.9rem; }
.footer-links a{ text-decoration:none; color:#9AA6B4; }
.footer-links a:hover{ color: var(--copper); }
.footer-copy{ text-align:center; font-size:.78rem; margin: 20px 0 0; color:#63707E; }

@media (max-width: 900px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; }
}