/* ============================================================
   DESIGN TOKENS
   Paleta: grafite (fundo técnico) + cobre (terminal oxidado)
   + verde-voltagem (indicador "carga boa"). Tipografia: Space
   Grotesk para títulos (traço técnico/mecânico), Inter no corpo.
   ============================================================ */
:root {
  --graphite-900: #14181C;
  --graphite-800: #1C2228;
  --graphite-700: #232A31;
  --line: #313A42;
  --paper: #F6F4EF;
  --paper-dim: #EAE6DB;
  --ink: #1B1F23;
  --ink-soft: #4A5158;
  --copper: #C97A3D;
  --copper-dark: #A85F2A;
  --volt-green: #4C8B5D;
  --volt-green-soft: #DCEBDF;
  --danger: #B4483C;

  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-s: 6px;
  --radius-m: 10px;
  --container: 1120px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 0.5em; color: var(--ink); }
h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; max-width: 68ch; color: var(--ink-soft); }
a { color: inherit; }
img { max-width: 100%; display: block; }
ul { padding-left: 1.2em; }
.wrap { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
:focus-visible { outline: 3px solid var(--copper); outline-offset: 2px; }

/* ============================================================
   BUTTONS / CTAs
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  border-radius: var(--radius-s);
  font-family: var(--font-display);
  font-weight: 500;
  text-decoration: none;
  padding: 0.85em 1.5em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--copper); color: #FFF7EF; }
.btn-primary:hover { background: var(--copper-dark); transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--copper); color: var(--copper-dark); }
.btn-small { padding: 0.55em 1.1em; font-size: 0.9rem; }
.btn-large { padding: 1em 2em; font-size: 1.05rem; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(20,24,28,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-row {
  display: flex; align-items: center; gap: 24px;
  height: 68px;
}
.logo { font-family: var(--font-display); font-size: 1.1rem; color: #FFF7EF; text-decoration: none; }
.logo span { color: var(--copper); }
.main-nav { display: flex; gap: 22px; margin-left: auto; }
.main-nav a { color: #C9CFD4; text-decoration: none; font-size: 0.92rem; }
.main-nav a:hover { color: var(--copper); }
.cta-official { margin-left: 12px; white-space: nowrap; }
.nav-toggle {
  display: none; flex-direction: column; gap: 4px;
  background: none; border: none; cursor: pointer; padding: 8px;
  margin-left: 8px;
}
.nav-toggle span { width: 22px; height: 2px; background: #F6F4EF; display: block; }

/* ============================================================
   HERO
   ============================================================ */
.hero { background: var(--graphite-900); color: #F6F4EF; padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.eyebrow-plain { color: #93A0AB; font-size: 0.9rem; margin-bottom: 0.9em; }
.hero h1 { color: #FFF7EF; }
.hero-lead { color: #C9CFD4; font-size: 1.08rem; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin: 1.5em 0 0.8em; }
.hero .btn-ghost { border-color: #3C464F; color: #F6F4EF; }
.hero .btn-ghost:hover { border-color: var(--copper); }
.hero-note { color: #7C8790; font-size: 0.88rem; }
.hero-visual { display: flex; justify-content: center; }
.gauge { width: min(100%, 320px); }
.gauge-value { font-family: var(--font-display); font-size: 34px; fill: #F6F4EF; }
.gauge-label { font-size: 12px; fill: #93A0AB; }
.gauge-arc { transition: stroke-dashoffset 1.1s ease 0.2s; }
.gauge-needle { transform-origin: 160px 230px; transition: transform 1.1s ease 0.2s; }

/* ============================================================
   QUICK SUMMARY (GEO block)
   ============================================================ */
.quick-summary { background: var(--paper-dim); border-bottom: 1px solid #DDD7C8; padding: 22px 0; }
.summary-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 32px; }
.summary-list li { font-size: 0.94rem; color: var(--ink-soft); }
.summary-list strong { color: var(--ink); }

/* ============================================================
   VERDICT
   ============================================================ */
.verdict { padding: 64px 0; border-bottom: 1px solid #E4DFD1; }
.verdict-grid { display: grid; grid-template-columns: 180px 1fr; gap: 40px; align-items: start; }
.verdict-score {
  background: var(--graphite-900); color: #F6F4EF;
  border-radius: var(--radius-m);
  padding: 26px 10px; text-align: center;
}
.score-number { font-family: var(--font-display); font-size: 2.6rem; color: var(--volt-green); }
.score-out { font-family: var(--font-display); font-size: 1.2rem; color: #93A0AB; }
.score-caption { color: #93A0AB; font-size: 0.82rem; margin: 4px 0 0; }
.badge { display: inline-block; padding: 0.35em 0.9em; border-radius: 999px; font-size: 0.82rem; font-weight: 600; margin-bottom: 0.8em; }
.badge-recommend { background: var(--volt-green-soft); color: var(--volt-green); }

/* ============================================================
   ABOUT
   ============================================================ */
.about { padding: 64px 0; }
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; }
.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 1.6em; margin-bottom: 0.7em; color: var(--ink-soft); }
.check-list li::before { content: "+"; position: absolute; left: 0; color: var(--volt-green); font-weight: 700; }

/* ============================================================
   SPECS / COMPARE TABLES
   ============================================================ */
.specs, .compare { padding: 64px 0; border-top: 1px solid #E4DFD1; }
.section-intro { max-width: 62ch; }
.table-wrap { overflow-x: auto; border: 1px solid #DDD7C8; border-radius: var(--radius-m); }
table { width: 100%; border-collapse: collapse; min-width: 560px; }
th, td { text-align: left; padding: 14px 18px; border-bottom: 1px solid #E4DFD1; font-size: 0.94rem; }
thead th { background: var(--graphite-900); color: #F6F4EF; font-family: var(--font-display); font-weight: 500; }
tbody th { color: var(--ink); font-weight: 600; width: 32%; background: var(--paper-dim); }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: none; }

/* ============================================================
   PROS / CONS
   ============================================================ */
.pros-cons { padding: 64px 0; border-top: 1px solid #E4DFD1; background: var(--paper-dim); }
.pros-cons-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.pc-col ul { list-style: none; padding: 0; }
.pc-col li { position: relative; padding: 0.5em 0 0.5em 1.7em; border-bottom: 1px dashed #DDD7C8; color: var(--ink-soft); }
.pc-col li:last-child { border-bottom: none; }
.pc-pros li::before { content: "＋"; position: absolute; left: 0; color: var(--volt-green); font-weight: 700; }
.pc-cons li::before { content: "－"; position: absolute; left: 0; color: var(--danger); font-weight: 700; }

/* ============================================================
   FIT (para quem é / não é)
   ============================================================ */
.fit { padding: 64px 0; }
.fit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.fit-col { border-left: 3px solid var(--copper); padding-left: 20px; }
.fit-col:last-child { border-left-color: var(--line); }

/* ============================================================
   FEEDBACK
   ============================================================ */
.feedback { padding: 64px 0; border-top: 1px solid #E4DFD1; }
.feedback-list { list-style: none; padding: 0; max-width: 72ch; }
.feedback-list li { padding: 12px 0 12px 20px; border-left: 3px solid #DDD7C8; margin-bottom: 12px; color: var(--ink-soft); }
.disclaimer-inline { font-size: 0.82rem; color: #8B8577; max-width: 72ch; }

/* ============================================================
   PRICING
   ============================================================ */
.pricing { padding: 64px 0; background: var(--graphite-900); color: #F6F4EF; }
.pricing-box { text-align: center; max-width: 560px; margin: 0 auto; }
.pricing h2 { color: #FFF7EF; }
.pricing p { color: #C9CFD4; margin-left: auto; margin-right: auto; }
.price-tag { font-family: var(--font-display); font-size: 3rem; color: var(--copper); margin-bottom: 0.2em; }
.price-tag span { display: block; font-size: 0.95rem; color: #93A0AB; font-family: var(--font-body); }

/* ============================================================
   FAQ / ACCORDION
   ============================================================ */
.faq { padding: 64px 0; }
.accordion-item { border-bottom: 1px solid #DDD7C8; }
.accordion-item h3 { margin: 0; }
.accordion-trigger {
  width: 100%; text-align: left; background: none; border: none;
  font-family: var(--font-display); font-size: 1.02rem; color: var(--ink);
  padding: 18px 34px 18px 0; cursor: pointer; position: relative;
}
.accordion-trigger::after {
  content: "+"; position: absolute; right: 4px; top: 16px;
  font-size: 1.3rem; color: var(--copper); transition: transform 0.2s ease;
}
.accordion-trigger[aria-expanded="true"]::after { transform: rotate(45deg); }
.accordion-panel {
  max-height: 0; overflow: hidden; transition: max-height 0.25s ease;
}
.accordion-panel p { padding-bottom: 18px; margin: 0; }
.accordion-item.is-open .accordion-panel { max-height: 320px; }

/* ============================================================
   FINAL CTA
   ============================================================ */
.final-cta { padding: 72px 0; text-align: center; background: var(--volt-green-soft); }
.final-cta-inner { max-width: 620px; margin: 0 auto; }
.final-cta p { margin-left: auto; margin-right: auto; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--graphite-900); color: #93A0AB; padding: 48px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; }
.footer-logo { color: #FFF7EF; font-size: 1rem; margin-bottom: 0.6em; }
.footer-disclaimer { font-size: 0.85rem; max-width: 60ch; color: #7C8790; }
.footer-links { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.footer-links a { color: #C9CFD4; text-decoration: none; font-size: 0.92rem; }
.footer-links a:hover { color: var(--copper); }
.footer-legal { text-align: center; font-size: 0.78rem; color: #5C666E; margin: 32px 0 0; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-grid, .about-grid, .pros-cons-grid, .fit-grid, .verdict-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .gauge { width: 220px; margin: 0 auto; }
  .summary-list { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .cta-official { display: none; }
  .site-header.is-open .main-nav {
    display: flex; flex-direction: column; position: absolute;
    top: 68px; left: 0; right: 0; background: var(--graphite-900);
    padding: 16px 24px 24px; border-bottom: 1px solid var(--line); gap: 14px;
  }
  .site-header.is-open .cta-official { display: inline-flex; margin: 4px 24px 20px; }
}