/* ==========================================================================
   Guia do Desempenho — landing de vendas
   Paleta: near-black + âmbar. Editável nos tokens abaixo.
   ========================================================================== */

:root {
  --bg:        #0b0d10;
  --bg-2:      #12161b;
  --bg-3:      #1a2027;
  --line:      #262e37;
  --txt:       #e8ecf1;
  --txt-dim:   #9aa5b1;
  --txt-mute:  #6b7683;
  --accent:    #f0a824;
  --accent-2:  #ffc255;
  --accent-dk: #b87c0c;
  --ok:        #3fb950;
  --radius:    14px;
  --maxw:      1080px;
  --font:      "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--txt);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }

section { padding: 84px 0; }
section + section { border-top: 1px solid var(--line); }

h1, h2, h3 { line-height: 1.18; letter-spacing: -0.02em; font-weight: 800; }
h1 { font-size: clamp(2rem, 5.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.35rem); margin-bottom: 16px; }
h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
p  { color: var(--txt-dim); }
p + p { margin-top: 14px; }
strong { color: var(--txt); font-weight: 650; }

.eyebrow {
  display: inline-block;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.lead { font-size: 1.12rem; color: var(--txt-dim); }
.center { text-align: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,13,16,.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px;
}
.logo { font-weight: 800; font-size: 1.05rem; letter-spacing: -.02em; color: var(--txt); }
.logo span { color: var(--accent); }
.site-header .btn { padding: 9px 18px; font-size: .88rem; }

/* ---------- Botões ---------- */
.btn {
  display: inline-block;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  color: #14100a;
  font-weight: 750;
  font-size: 1.02rem;
  padding: 16px 34px;
  border-radius: 10px;
  border: 0;
  cursor: pointer;
  text-align: center;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
  box-shadow: 0 6px 22px -8px rgba(240,168,36,.55);
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.06); color: #14100a; box-shadow: 0 10px 30px -8px rgba(240,168,36,.7); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 19px 46px; font-size: 1.1rem; width: 100%; max-width: 420px; }
.btn-sub { font-size: .84rem; color: var(--txt-mute); margin-top: 12px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 76px 0 90px;
  background:
    radial-gradient(900px 460px at 50% -12%, rgba(240,168,36,.13), transparent 68%),
    var(--bg);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.hero-grid {
  display: grid; grid-template-columns: 1.12fr .88fr; gap: 56px; align-items: center;
}
.hero h1 { margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { font-size: 1.16rem; margin-bottom: 26px; }
.hero-cta { margin-top: 30px; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-3); border: 1px solid var(--line);
  color: var(--txt-dim);
  font-size: .8rem; font-weight: 600;
  padding: 7px 15px; border-radius: 999px;
  margin-bottom: 20px;
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }

/* mockup do produto */
.mockup {
  position: relative;
  background: linear-gradient(160deg, var(--bg-3), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 30px 26px;
  box-shadow: 0 30px 70px -30px rgba(0,0,0,.9);
}
.mockup-book {
  background: linear-gradient(150deg, #1e252d, #141a20);
  border: 1px solid #2e3843;
  border-left: 4px solid var(--accent);
  border-radius: 4px 10px 10px 4px;
  padding: 30px 24px 26px;
  margin-bottom: 20px;
}
.mockup-book .kicker { font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.mockup-book h4 { font-size: 1.45rem; font-weight: 800; letter-spacing: -.02em; margin: 10px 0 6px; line-height: 1.15; }
.mockup-book .meta { font-size: .82rem; color: var(--txt-mute); }
.mockup-list { list-style: none; display: grid; gap: 10px; }
.mockup-list li { display: flex; align-items: center; gap: 11px; font-size: .92rem; color: var(--txt-dim); }
.mockup-list svg { flex: none; }

/* ---------- Grid de cards ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.card p { font-size: .95rem; }
.card .num {
  font-size: .72rem; font-weight: 800; letter-spacing: .1em;
  color: var(--accent); margin-bottom: 12px; display: block;
}
.icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(240,168,36,.1);
  border: 1px solid rgba(240,168,36,.22);
  display: grid; place-items: center;
  margin-bottom: 16px;
}

/* ---------- Conteúdo / sumário ---------- */
.toc { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.toc-part {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 22px;
}
.toc-part h3 { color: var(--accent); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
.toc-part ul { list-style: none; display: grid; gap: 7px; }
.toc-part li { font-size: .93rem; color: var(--txt-dim); padding-left: 17px; position: relative; }
.toc-part li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent-dk);
}

/* ---------- Grade de exercícios ---------- */
.vid-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.vid {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 16px 14px; text-align: center;
}
.vid .play {
  width: 34px; height: 34px; margin: 0 auto 10px;
  border-radius: 50%; background: rgba(240,168,36,.12);
  border: 1px solid rgba(240,168,36,.28);
  display: grid; place-items: center;
}
.vid span { font-size: .84rem; font-weight: 600; color: var(--txt-dim); }

/* ---------- Ciência ---------- */
.science {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 30px 30px;
}
.science h3 { color: var(--txt); }
.science .cite {
  font-size: .84rem; color: var(--txt-mute);
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
}
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 26px 0 6px; }
.stat { background: var(--bg-3); border: 1px solid var(--line); border-radius: 10px; padding: 18px 16px; }
.stat b { display: block; font-size: 1.6rem; font-weight: 800; color: var(--accent); letter-spacing: -.02em; line-height: 1.1; }
.stat span { font-size: .82rem; color: var(--txt-mute); display: block; margin-top: 6px; }

/* ---------- Oferta ---------- */
.offer {
  background: linear-gradient(165deg, var(--bg-3), var(--bg-2));
  border: 1px solid #33404d;
  border-radius: 20px;
  padding: 44px 40px;
  text-align: center;
  box-shadow: 0 30px 80px -40px rgba(240,168,36,.3);
}
.offer .includes { list-style: none; display: grid; gap: 12px; text-align: left; max-width: 460px; margin: 28px auto; }
.offer .includes li { display: flex; gap: 12px; align-items: flex-start; font-size: .96rem; color: var(--txt-dim); }
.offer .includes svg { flex: none; margin-top: 4px; }
.price { margin: 6px 0 4px; }
.price .old { font-size: 1rem; color: var(--txt-mute); text-decoration: line-through; }
.price .now { font-size: 3rem; font-weight: 800; letter-spacing: -.03em; color: var(--txt); display: block; line-height: 1.1; }
.price .now small { font-size: 1.1rem; font-weight: 600; color: var(--txt-dim); }
.price .terms { font-size: .88rem; color: var(--txt-mute); }
.pay-methods { font-size: .8rem; color: var(--txt-mute); margin-top: 18px; }

.guarantee {
  display: flex; gap: 18px; align-items: center;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 24px; margin-top: 24px;
}
.guarantee .seal {
  flex: none; width: 52px; height: 52px; border-radius: 50%;
  background: rgba(63,185,80,.1); border: 1px solid rgba(63,185,80,.3);
  display: grid; place-items: center;
}
.guarantee p { font-size: .92rem; }

/* ---------- FAQ ---------- */
details {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 10px; margin-bottom: 10px; overflow: hidden;
}
details[open] { border-color: #33404d; }
summary {
  cursor: pointer; list-style: none;
  padding: 18px 22px; font-weight: 650; font-size: 1rem;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; color: var(--accent); font-size: 1.35rem; font-weight: 400;
  flex: none; transition: transform .2s;
}
details[open] summary::after { transform: rotate(45deg); }
details .body { padding: 0 22px 20px; }
details .body p { font-size: .95rem; }

/* ---------- Footer ---------- */
footer {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  padding: 46px 0 40px;
  font-size: .84rem;
  color: var(--txt-mute);
}
footer .disclaimer {
  background: var(--bg-3); border: 1px solid var(--line);
  border-radius: 10px; padding: 18px 20px; margin-bottom: 26px;
  font-size: .82rem; line-height: 1.6; color: var(--txt-mute);
}
footer .disclaimer strong { color: var(--txt-dim); }
footer .bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--txt-dim); }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .grid-3, .grid-2, .toc { grid-template-columns: 1fr; }
  .vid-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-row { grid-template-columns: 1fr; }
  section { padding: 62px 0; }
  .offer { padding: 34px 22px; }
  .science { padding: 24px 22px; }
  .btn-lg { max-width: 100%; }
  .site-header .btn { padding: 8px 14px; font-size: .82rem; }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding: 0 18px; }
  .vid-grid { grid-template-columns: 1fr; }
  .guarantee { flex-direction: column; text-align: center; }
}