/* ---------- Tokens ---------- */
:root{
  --bg: #0a0d10;
  --bg-alt: #0e1216;
  --surface: #141a1f;
  --surface-2: #182027;
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(255,255,255,0.16);
  --text: #f6f5f1;
  --text-dim: #9aa4ab;
  --mint: #00e7a7;
  --mint-dim: rgba(0,231,167,0.14);
  --mint-ink: #04140f;
  --gold: #ffb648;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --container: 1180px;
  --font-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ list-style:none; margin:0; padding:0; }
p{ margin: 0 0 1em; color: var(--text-dim); }
h1,h2,h3{ font-family: var(--font-display); letter-spacing: 0.01em; line-height: 1.05; margin: 0 0 .4em; color: var(--text); font-weight: 400; }

.container{ max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow{ max-width: 760px; }

/* ---------- Grain overlay ---------- */
.grain{
  position: fixed; inset: 0; z-index: 999; pointer-events: none;
  opacity: .045; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ---------- Promo bar ---------- */
.promo-bar{
  background: linear-gradient(90deg, rgba(255,182,72,.14), rgba(255,182,72,.04));
  border-bottom: 1px solid rgba(255,182,72,.25);
}
.promo-bar-inner{
  display:flex; align-items:center; justify-content:center; flex-wrap:wrap;
  gap: 6px 14px; padding: 10px 24px; text-align:center;
}
.promo-bar-tag{
  flex-shrink:0; background: var(--gold); color: #241300;
  font-family: var(--font-display); font-size: 13px; letter-spacing:.03em;
  padding: 2px 10px; border-radius: 6px;
}
.promo-bar-inner p{ margin:0; font-size: 13.5px; color: var(--text); font-weight:500; }
.promo-bar-inner p s{ color: var(--text-dim); }
.promo-bar-inner p strong{ color: var(--gold); }
.promo-bar-link{
  display:inline-flex; align-items:center; gap:4px; flex-shrink:0;
  font-size: 13px; font-weight:800; color: var(--gold); white-space:nowrap;
}

/* ---------- Header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,13,16,0.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height: 68px;
}
.logo{ font-family: var(--font-display); font-size: 24px; letter-spacing: .04em; color: var(--text); }
.logo span{ color: var(--mint); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family: var(--font-body); font-weight:700; font-size: 15px;
  padding: 14px 26px; border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor:pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn-primary{
  background: var(--mint); color: var(--mint-ink);
  box-shadow: 0 0 0 0 rgba(0,231,167,.5);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 24px -8px rgba(0,231,167,.55); }
.btn-outline{
  background: transparent; color: var(--text); border-color: var(--border-strong);
}
.btn-outline:hover{ border-color: var(--mint); color: var(--mint); transform: translateY(-2px); }
.btn-sm{ padding: 10px 18px; font-size: 14px; }
.btn-lg{ padding: 17px 32px; font-size: 16px; }

/* ---------- Eyebrow / section head ---------- */
.eyebrow{
  font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--mint);
}
.section-num{
  font-family: var(--font-display); font-size: 15px; color: var(--text-dim);
  border: 1px solid var(--border-strong); border-radius: 999px;
  width: 30px; height: 30px; display:inline-flex; align-items:center; justify-content:center;
}
.section-head-top{ display:flex; align-items:center; gap: 12px; margin-bottom: 14px; }
.section-head-top.center{ justify-content:center; }
.section-head{ max-width: 640px; margin-bottom: 44px; }
.section-head h2{ font-size: clamp(28px, 4vw, 40px); }
.section-head p{ font-size: 17px; max-width: 520px; }

.section{ padding: 96px 0; position: relative; }
.section-alt{ background: var(--bg-alt); }
#diferenciais{ padding-top: 52px; }

/* ---------- Hero ---------- */
.hero{ position: relative; padding: 56px 0 20px; overflow: hidden; }
.hero-glow{
  position:absolute; top:-220px; left:50%; translate: -50% 0;
  width: 900px; height: 620px; border-radius: 50%;
  background: radial-gradient(ellipse closest-side at center, rgba(0,231,167,.20), transparent);
  filter: blur(10px); pointer-events:none;
}
.hero-grid{
  position:relative; z-index:1;
  display:grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items:center;
  padding-top: 40px;
}
.hero-copy .eyebrow{ display:inline-block; margin-bottom: 18px; }
.hero h1{ font-size: clamp(38px, 5.4vw, 62px); }
.highlight{ color: var(--mint); }
.lead{ font-size: 18px; max-width: 480px; }
.hero-actions{ display:flex; flex-wrap:wrap; align-items:center; gap: 18px; margin: 28px 0 26px; }
.hero-note{ font-size: 13px; color: var(--text-dim); font-weight: 600; }
.trust-row{ display:flex; flex-wrap:wrap; gap: 22px; }
.trust-row li{ display:flex; align-items:center; gap:7px; font-size: 13.5px; color: var(--text-dim); font-weight: 600;}
.trust-row svg{ width:16px; height:16px; color: var(--mint); flex-shrink:0; }
.trust-row li.trust-gold{ color: var(--gold); }
.trust-row li.trust-gold svg{ color: var(--gold); }

.hero-divider{ display:block; width:100%; height:36px; margin-top: 0; fill: var(--bg-alt); }

/* hero visual mock */
.hero-visual{ position:relative; }
.mock-card{
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 26px; box-shadow: 0 30px 60px -30px rgba(0,0,0,.7);
  transform: rotate(1.2deg);
}
.mock-card-head{ display:flex; align-items:center; gap:7px; margin-bottom: 22px; }
.mock-dot{ width:9px; height:9px; border-radius:50%; background: var(--border-strong); }
.mock-title{ margin-left: 8px; font-size: 12.5px; color: var(--text-dim); font-weight:600; }
.mock-row{ margin-bottom: 16px; }
.mock-row span{ display:block; font-size: 13px; color: var(--text-dim); margin-bottom: 7px; font-weight: 600;}
.mock-bar{ height: 8px; border-radius: 999px; background: var(--surface-2); overflow:hidden; }
.mock-bar i{ display:block; height:100%; background: linear-gradient(90deg, var(--mint), #6cffce); border-radius: 999px; }
.floating-badge{
  position:absolute; display:flex; align-items:center; gap:8px;
  background: var(--surface-2); border:1px solid var(--border-strong);
  padding: 10px 14px; border-radius: 999px; font-size: 12.5px; font-weight:700;
  box-shadow: 0 20px 34px -18px rgba(0,0,0,.65);
}
.floating-badge svg{ width:15px; height:15px; color: var(--mint); }
.badge-1{ top: -14px; right: 10px; }
.badge-2{ bottom: -16px; left: -10px; }

/* ---------- Feature grid ---------- */
.feature-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card{
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: border-color .2s ease, transform .2s ease;
}
.feature-card:hover{ border-color: rgba(0,231,167,.4); transform: translateY(-3px); }
.feature-icon{
  display:inline-flex; align-items:center; justify-content:center;
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--mint-dim); color: var(--mint); margin-bottom: 16px;
}
.feature-icon svg{ width: 22px; height: 22px; }
.feature-card h3{ font-size: 20px; margin-bottom: 8px; }
.feature-card p{ font-size: 14.5px; margin: 0; }

/* ---------- Tag cloud ---------- */
.tag-cloud{ display:flex; flex-wrap:wrap; gap: 12px; }
.tag{
  padding: 11px 20px; border-radius: 999px; border: 1px solid var(--border-strong);
  font-size: 14px; font-weight: 600; color: var(--text-dim);
  transition: border-color .2s ease, color .2s ease;
}
.tag:hover{ border-color: var(--mint); color: var(--mint); }

/* ---------- Plans ---------- */
.plans-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.plans-grid-single{ grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
.plan-card{
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px 32px;
}
.plan-featured{
  border-color: var(--mint); background: linear-gradient(180deg, rgba(0,231,167,.08), var(--surface) 55%);
}
.plan-badge{
  position:absolute; top: -14px; left: 50%; translate: -50% 0; background: var(--mint); color: var(--mint-ink);
  font-size: 12px; font-weight:800; letter-spacing:.04em; text-transform:uppercase;
  padding: 6px 14px; border-radius: 999px; white-space: nowrap;
}
.plan-card h3{ font-size: 24px; margin-bottom: 18px; }
.plan-price{ margin-bottom: 26px; padding-bottom: 22px; border-bottom: 1px dashed var(--border-strong); }
.plan-old-price{ display:block; font-size: 13px; color: var(--text-dim); font-weight:600; margin-bottom: 4px; }
.plan-old-price s{ opacity:.75; }
.plan-value{ display:block; font-family: var(--font-display); font-size: 44px; color: var(--text); line-height:1.1; }
.plan-value small{ font-family: var(--font-body); font-size: 15px; font-weight:600; color: var(--text-dim); margin-left: 6px; }
.plan-installment{ display:block; font-size: 13px; color: var(--text-dim); font-weight:600; margin-top: 6px; }
.plan-installment s{ opacity:.6; margin-right: 4px; }
.plan-installment strong{ color: var(--mint); font-weight:800; }
.plan-savings{
  display:flex; align-items:center; gap:6px; margin-top: 14px;
  font-size: 12.5px; font-weight:800; color: var(--gold);
}
.plan-savings svg{ flex-shrink:0; }
.plan-list{ margin-bottom: 28px; }
.plan-list li{
  display:flex; gap: 10px; align-items:flex-start; font-size: 14.5px; color: var(--text-dim);
  padding: 8px 0; border-bottom: 1px solid var(--border);
}
.plan-list li:last-child{ border-bottom:none; }
.plan-list li::before{
  content:""; flex-shrink:0; margin-top: 6px; width: 8px; height: 8px; border-radius: 2px;
  background: var(--mint);
}
.plan-card .btn{ width:100%; }
.plans-footnote{ text-align:center; margin: 30px 0 0; font-size: 13.5px; color: var(--text-dim); }

/* ---------- Testimonials ---------- */
.testimonial-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.testimonial-card{
  margin:0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px; position: relative;
}
.quote-mark{
  font-family: var(--font-display); font-size: 54px; color: rgba(0,231,167,.35); line-height:1;
  display:block; margin-bottom: -6px;
}
.testimonial-card blockquote{ margin: 0 0 20px; font-size: 15.5px; color: var(--text); font-style: normal; }
.testimonial-card figcaption{ display:flex; align-items:center; gap: 12px; font-size: 13.5px; font-weight:700; color: var(--text-dim); }

.avatar{
  --hue: 162;
  display:inline-flex; align-items:center; justify-content:center; flex-shrink:0;
  width: 38px; height:38px; border-radius:50%;
  background: hsla(var(--hue), 70%, 55%, .18);
  color: hsl(var(--hue), 80%, 68%);
  font-family: var(--font-body); font-weight:800; font-size: 13px;
  border: 1px solid hsla(var(--hue), 70%, 55%, .4);
}

/* ---------- Guarantee ---------- */
.guarantee{
  background: linear-gradient(135deg, #06231a, #0a0d10 65%);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 88px 0;
}
.guarantee-inner{ display:flex; align-items:center; gap: 44px; }
.guarantee-icon{
  flex-shrink:0; width: 96px; height:96px; border-radius: 26px;
  background: var(--mint-dim); color: var(--mint);
  display:flex; align-items:center; justify-content:center;
}
.guarantee-icon svg{ width: 50px; height:50px; }
.guarantee h2{ font-size: clamp(26px, 3.6vw, 36px); max-width: 640px; }
.guarantee p{ font-size: 17px; max-width: 560px; }
.guarantee strong{ color: var(--mint); }

/* ---------- Teachers ---------- */
.teacher-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.teacher-card{
  display:flex; gap: 16px; background: var(--surface); border:1px solid var(--border);
  border-radius: var(--radius); padding: 22px;
}
.teacher-card .avatar{ width: 50px; height:50px; font-size:14px; }
.teacher-tag{ display:block; font-size: 11px; font-weight:800; letter-spacing:.06em; text-transform:uppercase; color: var(--mint); margin-bottom: 4px; }
.teacher-card h3{ font-size: 19px; margin-bottom: 6px; }
.teacher-card p{ font-size: 13.5px; margin:0; }

/* ---------- Platform ---------- */
.platform-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.platform-card{ text-align:left; }
.platform-card h3{ font-size: 19px; margin-bottom: 6px; }
.platform-card p{ font-size: 14.5px; }

/* ---------- FAQ / accordion ---------- */
.accordion-item{ border-bottom: 1px solid var(--border); }
.accordion-trigger{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap: 16px;
  background:none; border:none; text-align:left; cursor:pointer;
  padding: 22px 0; font-family: var(--font-body); font-size: 17px; font-weight:700; color: var(--text);
}
.accordion-trigger .chev{ width:18px; height:18px; color: var(--mint); flex-shrink:0; transition: transform .25s ease; }
.accordion-item.open .chev{ transform: rotate(180deg); }
.accordion-panel{
  max-height: 0; overflow:hidden; transition: max-height .3s ease;
}
.accordion-panel p{ padding-bottom: 22px; margin:0; font-size: 15px; }

/* ---------- Final CTA ---------- */
.final-cta{ padding: 110px 0; text-align:center; position: relative; overflow:hidden; }
.final-cta::before{
  content:""; position:absolute; inset:0; margin:auto; width: 700px; height:400px;
  background: radial-gradient(ellipse closest-side at center, rgba(0,231,167,.18), transparent);
  pointer-events:none;
}
.final-cta-inner{ position:relative; z-index:1; display:flex; flex-direction:column; align-items:center; gap: 8px; }
.final-cta h2{ font-size: clamp(30px, 4.6vw, 46px); max-width: 620px; }
.final-cta p{ font-size: 17px; max-width: 480px; margin-bottom: 20px; }
.final-cta .btn{ margin-bottom: 10px; }

/* ---------- Footer ---------- */
.site-footer{ border-top: 1px solid var(--border); padding: 48px 0 110px; }
.footer-inner{ display:flex; flex-direction:column; gap: 14px; }
.footer-disclaimer{ font-size: 13px; max-width: 640px; margin:0; }
.footer-copy{ font-size: 12.5px; margin:0; opacity:.7; }

/* ---------- Sticky mobile CTA ---------- */
.sticky-cta{
  position: fixed; left:0; right:0; bottom:0; z-index: 200;
  display:none; align-items:center; justify-content:space-between; gap: 14px;
  background: rgba(10,13,16,.92); backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-strong);
  padding: 12px 18px; padding-bottom: max(12px, env(safe-area-inset-bottom));
  transform: translateY(100%); transition: transform .3s ease;
}
.sticky-cta.visible{ transform: translateY(0); }
.sticky-cta strong{ display:block; font-size: 14px; }
.sticky-cta span{ display:block; font-size: 12px; color: var(--text-dim); }
.sticky-cta span s{ opacity:.6; margin-right: 4px; }
.sticky-tag{
  display:inline-block; font-style:normal; background: var(--gold); color:#241300;
  font-size: 10px; font-weight:800; padding: 1px 6px; border-radius: 4px; margin-left: 6px; vertical-align: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-visual{ max-width: 420px; margin: 48px auto 0; }
  .feature-grid{ grid-template-columns: repeat(2, 1fr); }
  .teacher-grid{ grid-template-columns: 1fr; }
  .plans-grid{ grid-template-columns: 1fr; }
  .testimonial-grid{ grid-template-columns: 1fr; }
  .platform-grid{ grid-template-columns: 1fr; }
  .guarantee-inner{ flex-direction:column; text-align:center; }
  .guarantee p{ margin-left:auto; margin-right:auto; }
}
@media (max-width: 620px){
  .section{ padding: 68px 0; }
  .feature-grid{ grid-template-columns: 1fr; }
  .header-inner .btn-sm{ padding: 9px 14px; font-size: 13px; }
  .sticky-cta{ display:flex; }
  .site-footer{ padding-bottom: 120px; }
  .hero-actions{ flex-direction:column; align-items:flex-start; }
  .promo-bar-inner{ padding: 8px 16px; gap: 4px 10px; }
  .promo-bar-inner p{ font-size: 12.5px; flex-basis: 100%; order: 2; }
  .promo-bar-tag{ order:1; }
  .promo-bar-link{ order:3; font-size: 12px; }

  .hero{ padding: 40px 0 16px; }
  #diferenciais{ padding-top: 44px; }
  .hero-visual{ max-width: 300px; margin: 28px auto 0; }
  .mock-card{ padding: 18px; transform: none; }
  .mock-title{ font-size: 11.5px; }
  .mock-row{ margin-bottom: 12px; }
  .mock-row span{ font-size: 12px; margin-bottom: 5px; }
  .floating-badge{ display:none; }
}