/* ==========================================================
   vazio. — landing page
   ========================================================== */

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Navegação ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.nav-links { display: flex; gap: 28px; font-size: 15px; }
.nav-links a { text-decoration: none; color: var(--muted); }
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.btn-sm { height: 40px; padding: 0 16px; font-size: 14px; }

/* ---------- Hero ---------- */
.hero { padding: clamp(48px, 8vw, 104px) 0 clamp(56px, 8vw, 96px); }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero-title { font-size: clamp(44px, 6.4vw, 84px); margin-bottom: 24px; }
.hero .lead { margin: 0 0 32px; }

.hero-ctas { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-lg { height: 54px; padding: 0 26px; font-size: 16px; }
.form-note { font-size: 12px; color: var(--muted); margin: 12px 0 0; }
.form-note.ok { color: var(--mode-pausa); }
.form-note.err { color: #c0392b; }

.demo-btn {
  margin-top: 28px;
  display: inline-flex; align-items: center; gap: 12px;
  background: none; border: 0; padding: 0; cursor: pointer;
  font-weight: 500;
}
.demo-icon {
  width: 40px; height: 40px; border-radius: 999px;
  border: 1px solid var(--line); position: relative; flex: none;
  transition: border-color .2s ease;
}
.demo-icon::after { /* triângulo de play */
  content: ""; position: absolute; left: 15px; top: 12px;
  border-left: 12px solid var(--ink); border-top: 8px solid transparent; border-bottom: 8px solid transparent;
}
.demo-btn[aria-pressed="true"] .demo-icon::after { /* vira pausa */
  left: 13px; top: 12px; width: 4px; height: 16px; border: 0;
  background: var(--ink); box-shadow: 8px 0 0 var(--ink);
}
.demo-btn:hover .demo-icon { border-color: var(--ink); }
.demo-btn > span:nth-child(2) { white-space: nowrap; }
.demo-hint { font-family: var(--font-mono); font-size: 12px; color: var(--muted); font-weight: 400; }

/* Cartão da sessão */
.session-card { padding: 24px; box-shadow: var(--shadow); }
.session-head { display: flex; justify-content: space-between; align-items: baseline; }
.session-head .eyebrow { margin: 0; }
.session-total { font-size: 13px; color: var(--muted); }
.wave { width: 100%; height: 140px; margin: 16px 0; }
.timeline { display: flex; gap: 4px; }
.seg {
  border-radius: 8px; padding: 10px 10px 8px; min-width: 0;
  display: flex; flex-direction: column; gap: 2px;
  font-size: 13px; font-weight: 500; color: #fff;
}
.seg span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seg small { font-family: var(--font-mono); font-size: 11px; opacity: .85; font-weight: 400; }
.seg-aquecer { background: var(--mode-aquecer); min-width: 76px; }
.seg-pausa { min-width: 56px; }
.seg-foco { background: var(--mode-foco); }
.seg-pausa { background: var(--mode-pausa); }
:root[data-theme="dark"] .seg { color: #0e0f12; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .seg { color: #0e0f12; } }
.session-foot { margin: 16px 0 0; font-size: 14px; color: var(--muted); }

/* ---------- Seções ---------- */
.section { padding: clamp(64px, 9vw, 120px) 0; border-top: 1px solid var(--line); }
.section-alt { background: var(--surface-2); }
.section-title { font-size: clamp(34px, 4.6vw, 58px); max-width: 18ch; margin-bottom: clamp(32px, 4vw, 56px); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.point, .mode { padding: 28px; }
.point h3, .mode h3 { font-size: 20px; margin: 12px 0 8px; font-weight: 600; letter-spacing: -0.01em; }
.point p, .mode p { margin: 0; color: var(--muted); }
.point-n { font-size: 13px; color: var(--accent); }

.mode-top { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--muted); }
.dot { width: 12px; height: 12px; border-radius: 999px; }
.mode-aquecer .dot { background: var(--mode-aquecer); }
.mode-foco .dot { background: var(--mode-foco); }
.mode-pausa .dot { background: var(--mode-pausa); }
.mode { border-top: 3px solid; }
.mode-aquecer { border-top-color: var(--mode-aquecer); }
.mode-foco { border-top-color: var(--mode-foco); }
.mode-pausa { border-top-color: var(--mode-pausa); }

.steps { list-style: none; padding: 0; margin: 40px 0 0; display: flex; flex-wrap: wrap; gap: 12px 32px; color: var(--muted); }
.steps li { display: flex; align-items: center; gap: 10px; }
.steps .mono {
  width: 28px; height: 28px; border-radius: 999px; display: grid; place-items: center;
  border: 1px solid var(--line); font-size: 12px; color: var(--ink);
}

/* Público: grade simétrica, sem colunas órfãs */
.audiences { display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line); }
.audience { min-width:0;padding:26px 22px 28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line); }
.audience h3 { font-family: var(--font-display); font-weight: 400; font-size: 30px; margin: 0 0 8px; }
.audience p { margin: 0; color: var(--muted); font-size: 15px; }

/* Preços */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.plan { padding: 28px; display: flex; flex-direction: column; position: relative; }
.plan h3 { margin: 0 0 12px; font-size: 18px; font-weight: 600; }
.price { margin: 0; font-size: 36px; letter-spacing: -0.02em; }
.price small { font-size: 15px; color: var(--muted); margin-left: 4px; }
.price-sub { margin: 4px 0 0; font-size: 12px; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 24px 0 28px; display: grid; gap: 10px; flex: 1; }
.plan li { padding-left: 22px; position: relative; font-size: 15px; }
.plan li::before { content: ""; position: absolute; left: 0; top: .6em; width: 10px; height: 2px; background: var(--accent); }
.plan-featured { border: 1.5px solid var(--accent); box-shadow: var(--shadow); }
.badge {
  position: absolute; top: -12px; left: 28px;
  background: var(--accent); color: var(--accent-ink);
  font-size: 11px; padding: 4px 10px; border-radius: 999px; letter-spacing: .04em;
}
.pricing-note { margin: 24px 0 0; color: var(--muted); font-size: 14px; }

/* FAQ */
.faq-wrap { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; font-weight: 500; font-size: 17px;
  display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); color: var(--muted); transition: transform .2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 12px 0 0; color: var(--muted); max-width: 60ch; }

/* CTA final */
.cta { text-align: center; }
.cta-inner { display: flex; flex-direction: column; align-items: center; }
.cta .section-title { margin-left: auto; margin-right: auto; margin-bottom: 32px; }
.cta .hero-ctas { justify-content: center; }

/* Rodapé */
.footer { border-top: 1px solid var(--line); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer p { margin: 0; color: var(--muted); font-size: 14px; }
.footer-links { display: flex; gap: 20px; font-size: 14px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--ink); }

/* ---------- Responsivo ---------- */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3, .pricing { grid-template-columns: 1fr; }
  .audiences { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .faq-wrap { grid-template-columns: 1fr; gap: 0; }
  .pricing .plan-featured { order: -1; }
}
@media (max-width: 560px) {
  .hero-ctas { flex-direction: column; }
  .demo-btn { flex-wrap: wrap; text-align: left; }
  .demo-hint { width: 100%; padding-left: 52px; margin-top: -10px; }
  .hero-ctas .btn { width: 100%; }
  .nav-cta { display: none; }
  .audiences { grid-template-columns: 1fr; }
  .audience { border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 16px; }
  .seg-pausa span { display: none; }
}

/* ---------- Vantagens no hero ---------- */
.perks { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; color: var(--muted); }
.perks li { display: flex; align-items: center; gap: 8px; }
.perks li::before { content: ""; width: 14px; height: 8px; border-left: 2px solid var(--mode-pausa); border-bottom: 2px solid var(--mode-pausa); transform: rotate(-45deg) translateY(-2px); }

/* ---------- Plano de estudos ---------- */
.plan-split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.plan-split .section-title { margin-bottom: 20px; }
.plan-split .lead { margin: 0 0 28px; }
.methods { list-style: none; padding: 0; margin: 0 0 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.methods li { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; background: var(--surface); }
.methods strong { font-weight: 600; font-size: 15px; }
.methods .mono { font-size: 12px; color: var(--accent); }
.methods small { grid-column: 1 / -1; color: var(--muted); font-size: 13px; }

.plan-preview { padding: 24px; box-shadow: var(--shadow); }
.pp-head { display: flex; justify-content: space-between; gap: 12px; }
.pp-head .eyebrow { margin: 0 0 4px; }
.pp-title { margin: 0; font-family: var(--font-display); font-size: 30px; line-height: 1.05; }
.pp-count { margin: 0; text-align: right; font-size: 20px; line-height: 1.1; }
.pp-count small { font-size: 11px; color: var(--muted); }
.pp-meter { height: 6px; background: var(--line); border-radius: 999px; overflow: hidden; margin: 18px 0 8px; }
.pp-meter i { display: block; height: 100%; background: var(--accent); border-radius: 999px; }
.pp-sub { margin: 0 0 18px; font-size: 12px; color: var(--muted); }
.pp-week { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.pp-week li { display: grid; grid-template-columns: 36px repeat(3, 1fr); gap: 6px; align-items: center; }
.pp-week li > span { font-size: 12px; color: var(--muted); }
.pp-week b {
  font-weight: 500; font-size: 13px; padding: 8px 10px; border-radius: 6px;
  background: var(--surface-2); border-left: 4px solid var(--c);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ---------- Comparativo ---------- */
.compare { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.cmp-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr; }
.cmp-row > span { padding: 16px 20px; border-top: 1px solid var(--line); font-size: 15px; }
.cmp-row > span:nth-child(2) { color: var(--muted); }
.cmp-head > span { border-top: 0; font-size: 13px; font-family: var(--font-mono); color: var(--muted); }
.cmp-head .cmp-us { font-family: var(--font-display); font-size: 24px; color: var(--ink); }
.cmp-us { background: var(--accent-soft); font-weight: 500; }

@media (max-width: 960px) {
  .plan-split { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .methods { grid-template-columns: 1fr; }
  .cmp-row { grid-template-columns: 1fr 1fr; }
  .cmp-row > span:first-child { grid-column: 1 / -1; font-weight: 600; padding-bottom: 4px; }
  .cmp-row > span:not(:first-child) { border-top: 0; padding-top: 4px; font-size: 14px; }
  .cmp-head > span:first-child { display: none; }
  .cmp-head > span { border-top: 0; }
  .cmp-row:not(.cmp-head) { border-top: 1px solid var(--line); }
}
.cmp-head { align-items: end; }
section[id] { scroll-margin-top: 72px; }

/* V5.2 — experiência de 90 segundos */
.preview-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(24px,5vw,76px);align-items:center}
.preview-note,.preview-audio{color:var(--muted);font-size:13px;line-height:1.6}
.preview-card{padding:clamp(22px,4vw,38px);text-align:center}
.preview-progress{height:5px;border-radius:10px;background:var(--line);overflow:hidden;margin-bottom:26px}
.preview-progress span{display:block;width:0%;height:100%;background:var(--accent);transition:width .3s linear}
.preview-clock{font-size:clamp(58px,8vw,94px);line-height:1.15;letter-spacing:-.06em;margin:12px 0 16px;color:var(--ink)}
.preview-card h3{font-size:clamp(20px,3vw,26px);margin:0 0 12px}
.preview-card [data-preview-instruction]{max-width:390px;min-height:65px;margin:0 auto 12px;line-height:1.65;color:var(--muted)}
.preview-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:22px 0}
.preview-labels{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:11px}
.preview-complete{margin:22px 0 0;font-weight:600}
.preview-complete a{color:var(--accent)}
@media(max-width:760px){.preview-wrap{grid-template-columns:1fr}.preview-labels{font-size:10px}}

/* Seletor de etapas da demonstração */
.preview-labels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.preview-labels button{font:inherit;cursor:pointer;color:var(--muted);border:1px solid var(--line);border-radius:8px;background:transparent;padding:11px 5px;min-width:0;transition:background .2s,border-color .2s}
.preview-labels button[aria-pressed="true"]{color:var(--ink);border-color:var(--accent);background:var(--surface,rgba(0,0,0,.035))}
.preview-labels button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Vazio. v5.3 — editorial, menos cartões, produto em primeiro plano */
.nav {background:color-mix(in srgb,var(--surface) 93%,transparent);border-bottom-color:var(--line);}
.nav-inner {height:76px;}
.nav-links {gap:32px;font-size:14px;font-weight:500;}
.hero {padding:clamp(64px,9vw,124px) 0 clamp(80px,9vw,116px);background:radial-gradient(ellipse 50% 65% at 87% 30%,var(--accent-soft),transparent 85%);}
.hero-grid {grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,92px);}
.hero-title {font-size:clamp(48px,5.5vw,78px);max-width:13ch;}
.hero .lead {max-width:49ch;line-height:1.7;}
.hero .eyebrow {color:var(--accent);}
.hero .perks {margin-top:24px;}
.session-card {border:1px solid var(--line);border-radius:18px;box-shadow:0 25px 75px rgba(34,60,110,.12);padding:32px;background:var(--surface);}
.section {padding:clamp(80px,9vw,126px) 0;}
.section-title {max-width:22ch;font-size:clamp(36px,4.2vw,60px);margin-bottom:36px;}
.grid-3 {gap:0;border-top:1px solid var(--line);}
.point {padding:32px 30px 30px 0;border:0;border-radius:0;box-shadow:none;background:transparent;}
.point + .point {border-left:1px solid var(--line);padding-left:30px;}
.point h3 {font-size:19px;letter-spacing:-.025em;margin-top:0;}
.point p {font-size:15px;line-height:1.7;}
.audiences {border-left:0;grid-template-columns:repeat(3,minmax(0,1fr));}
.audience {padding:32px 28px;border-right:0;border-bottom:1px solid var(--line);}
.audience:not(:nth-child(3n+1)) {border-left:1px solid var(--line);}
.audience h3 {font-family:var(--font-body);font-size:19px;font-weight:600;letter-spacing:-.035em;}
.audience p {font-size:14px;line-height:1.65;max-width:28ch;}
.preview-card {border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);}
.preview-clock {font-variant-numeric:tabular-nums;}
@media(max-width:760px){.hero-grid{grid-template-columns:1fr}.hero-title{font-size:clamp(43px,10vw,64px)}.grid-3{display:grid;grid-template-columns:1fr}.point,.point + .point{padding:24px 0;border-left:0;border-bottom:1px solid var(--line)}.audiences{grid-template-columns:1fr 1fr}.audience:not(:nth-child(3n+1)){border-left:0}.audience:nth-child(even){border-left:1px solid var(--line)}}
@media(max-width:480px){.audiences{grid-template-columns:1fr}.audience,.audience:nth-child(even){border-left:0;padding:22px 0}}

/* Vazio. v5.4.2 — navegação e comparativo acessíveis no celular */
@media (max-width: 640px) {
  .nav-inner { gap: 8px; height: 68px; }
  .nav .logo { font-size: 25px; flex-shrink: 0; }
  .nav-actions { gap: 7px; margin-left: auto; }
  .nav-cta { display: inline-flex; height: 36px; padding: 0 10px; font-size: 12px; white-space: nowrap; }
  .account-link, .account-link:not(:has(.avatar)) { width: auto; height: 36px; padding: 0 8px; border-radius: 8px; font-size: 12px; white-space: nowrap; }
  .account-link .acc-txt { display: inline; }
  .account-link:not(:has(.avatar))::before { display: none; }
  .account-link:has(.avatar) { gap: 5px; }
  .compare { border: 0; background: transparent; overflow: visible; }
  .cmp-head { display: none; }
  .cmp-row:not(.cmp-head) { display: grid; grid-template-columns: 1fr; gap: 0; padding: 17px 0; border-top: 1px solid var(--line); }
  .cmp-row:not(.cmp-head) > span { display: block; grid-column: 1; border: 0; min-width: 0; padding: 0; overflow-wrap: anywhere; }
  .cmp-row:not(.cmp-head) > span:first-child { font-weight: 600; font-size: 15px; padding-bottom: 12px; }
  .cmp-row:not(.cmp-head) > span:nth-child(2), .cmp-row:not(.cmp-head) > span:nth-child(3) { font-size: 14px; line-height: 1.45; padding: 8px 12px; }
  .cmp-row:not(.cmp-head) > span:nth-child(2)::before { content: "Vídeo de chuva"; display: block; color: var(--muted); font: 11px var(--font-mono); margin-bottom: 3px; }
  .cmp-row:not(.cmp-head) > span:nth-child(3)::before { content: "Vazio."; display: block; color: var(--accent); font: 11px var(--font-mono); margin-bottom: 3px; }
  .cmp-row:not(.cmp-head) > span:nth-child(3) { background: var(--accent-soft); border-radius: 8px; margin-top: 5px; }
}
@media (max-width: 365px) {
  .nav .logo { font-size: 23px; }
  .nav-actions { gap: 4px; }
  .nav-cta { font-size: 11px; padding: 0 7px; }
  .account-link, .account-link:not(:has(.avatar)) { font-size: 11px; padding: 0 6px; }
}