/* ============================================
   SOLUÇÕES — demonstrações animadas
   ============================================ */

:root {
  --warn: #B4573A;
  --warn-tint: #FBEADF;
  --ok-tint: #EEF7CF;
  --ui-line: rgba(23, 29, 29, 0.09);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.section--demos .section-intro { margin-bottom: 44px; }
.section--demos + .section--demos { padding-top: 0; }

/* ---------- Soluções: conversas com a IA ---------- */

.ai-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.ai-card {
  display: flex;
  flex-direction: column;
  padding: 22px 22px 24px;
  background: #1C2323;
  border: 1px solid var(--border-dark);
  border-radius: 18px;
}

.ai-card h3 { font-family: var(--font-display); font-size: 19px; font-weight: 600; line-height: 1.25; }
.ai-card__d { margin-top: 8px; font-size: 15px; line-height: 1.6; color: var(--sage); }

.ai-chat {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-height: 150px;
  margin: 18px 0 0;
  padding: 14px 16px 16px;
  border-radius: 14px;
  background: #F8F9F4;
  color: var(--ink);
}

.ai-chat__bar { margin-bottom: 6px; padding-bottom: 9px; border-bottom: 1px solid rgba(23, 29, 29, 0.08); font-family: var(--font-mono); font-size: 11.5px; color: #5E6B66; }

.ai-msg {
  max-width: 86%;
  padding: 9px 13px;
  border-radius: 13px;
  font-size: 14.5px;
  line-height: 1.45;
  opacity: 0;
}

.ai-msg--user { align-self: flex-end; background: var(--accent); color: var(--ink); border-bottom-right-radius: 4px; }
.ai-msg--ai { background: #fff; color: var(--ink); border-bottom-left-radius: 4px; box-shadow: 0 1px 0 rgba(23, 29, 29, 0.06), 0 0 0 1px rgba(23, 29, 29, 0.05); }
.ai-who { display: block; margin-bottom: 2px; font-family: var(--font-mono); font-size: 11px; color: var(--accent-deep); }

.ai-slot { align-self: flex-start; display: grid; max-width: 86%; }
.ai-slot > * { grid-area: 1 / 1; }
.ai-slot .ai-msg { max-width: none; }

.ai-typing {
  justify-self: start;
  align-self: start;
  display: flex;
  gap: 5px;
  padding: 13px 14px;
  border-radius: 13px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(23, 29, 29, 0.05);
  opacity: 0;
}

.ai-typing i { width: 6px; height: 6px; border-radius: 50%; background: #AAB8AF; }

.ai-audio { display: inline-flex; align-items: center; gap: 2px; margin-right: 8px; vertical-align: middle; }
.ai-audio i { display: block; width: 2px; height: var(--h, 8px); border-radius: 1px; background: currentColor; opacity: 0.7; }


/* a conversa acontece quando o cartão entra na tela */
.ai-card.is-in .ai-msg--user { animation: ai-in 0.45s calc(var(--i) * 0.25s + 0.2s) var(--ease) forwards; }
.ai-card.is-in .ai-typing { animation: ai-typing 1.5s calc(var(--i) * 0.25s + 0.8s) forwards; }
.ai-card.is-in .ai-typing i { animation: ai-dot 1s infinite; }
.ai-card.is-in .ai-typing i:nth-child(2) { animation-delay: 0.15s; }
.ai-card.is-in .ai-typing i:nth-child(3) { animation-delay: 0.3s; }
.ai-card.is-in .ai-msg--ai { animation: ai-in 0.45s calc(var(--i) * 0.25s + 2.2s) var(--ease) forwards; }

@keyframes ai-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

@keyframes ai-typing {
  0% { opacity: 0; }
  12% { opacity: 1; }
  88% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes ai-dot {
  0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); }
}

@media (prefers-reduced-motion: reduce) {
  .ai-msg { opacity: 1; }
  .ai-typing { display: none; }
  .ai-card.is-in .ai-msg { animation: none; }
}

/* ---------- Layout de cada solução ---------- */

.sol {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.55fr);
  gap: 56px;
  align-items: center;
  padding: 80px 0;
  border-top: 1px solid var(--border-dark);
}

/* o primeiro produto vem logo depois do rótulo da seção */
.sol.sol--first { margin-top: 10px; padding-top: 0; border-top: 0; }

.sol--wide {
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
}

.sol--wide .sol__copy {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  column-gap: 64px;
  align-items: end;
}

.sol--wide .sol__title,
.sol--wide .sol__lead { grid-column: 1; }

.sol--wide .sol__gains {
  grid-column: 2;
  grid-row: 1 / 3;
  margin-top: 0;
}

.sol--wide .sol__cta { grid-column: 1; margin-top: 26px; }

.sol__title {
  font-family: var(--font-display);
  font-size: clamp(27px, 3vw, 38px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.sol__lead {
  font-size: 17px;
  line-height: 1.7;
  color: var(--sage);
  margin-top: 18px;
  max-width: 520px;
}

.sol__gains {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-top: 28px;
}

.sol__gains li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15.5px;
  color: var(--text-mid);
}

.sol__gains li::before {
  content: '';
  flex-shrink: 0;
  width: 14px;
  height: 2px;
  background: var(--accent);
  transform: translateY(-4px);
}

.sol__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  margin-top: 30px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  color: var(--accent);
  border-bottom: 1px solid rgba(212, 244, 116, 0.35);
  padding-bottom: 3px;
  transition: gap 300ms var(--ease), border-color 300ms;
}

.sol__cta:hover { gap: 13px; border-color: var(--accent); }

/* ---------- Moldura da demonstração ---------- */

.demo { margin: 0; min-width: 0; }

.demo__screen {
  container-type: inline-size;
  position: relative;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  color: var(--ink);
  box-shadow: 0 0 0 1px rgba(170, 184, 175, 0.22), 0 40px 90px -30px rgba(0, 0, 0, 0.65);
}

.demo__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 16px;
  background: #fff;
  border-bottom: 1px solid var(--ui-line);
}

.demo__app {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.demo__flag {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--sage-dim);
}

.demo__stage {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--paper);
  font-family: var(--font-body);
  font-size: clamp(11px, 2cqi, 15px);
  line-height: 1.38;
  transition: opacity 0.38s ease;
}

.sol--wide .demo__stage { aspect-ratio: 2 / 1; font-size: clamp(11px, 1.45cqi, 16px); }


.demo__stage.is-fading { opacity: 0; }

.demo__stage :where(*) {
  transition-property: opacity, transform, left, top, width, height, max-height, font-size, background-color, color, border-color, box-shadow, stroke-dashoffset;
  transition-duration: 0.8s;
  transition-timing-function: var(--ease);
}

.demo__stage.is-instant,
.demo__stage.is-instant * { transition: none !important; }

.demo.is-paused .demo__stage * { animation-play-state: paused !important; }

.k-card {
  position: absolute;
  background: #fff;
  border: 1px solid var(--ui-line);
  border-radius: 0.8em;
  box-shadow: 0 0.5em 1.4em -0.5em rgba(23, 29, 29, 0.2);
}

.k-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78em;
  color: var(--sage-dim);
}

/* ---------- Controles e legenda ---------- */

.demo__ui {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 16px;
  margin-top: 18px;
}

.demo__toggle {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-dark);
  display: grid;
  place-items: center;
  color: var(--text-light);
  transition: border-color 250ms, color 250ms;
}

.demo__toggle:hover { border-color: var(--accent); color: var(--accent); }
.demo__toggle .i-play { display: none; }
.demo.is-stopped .demo__toggle .i-play { display: block; }
.demo.is-stopped .demo__toggle .i-pause { display: none; }

.demo__bars { display: flex; gap: 6px; flex: 0 0 auto; }

.demo__seg {
  position: relative;
  flex: none;
  width: 34px;
  height: 22px;
}

.demo__seg::before,
.demo__fill {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  height: 3px;
  border-radius: 3px;
}

.demo__seg::before { right: 0; background: rgba(170, 184, 175, 0.22); }

.demo__fill {
  width: calc(var(--p, 0) * 100%);
  background: var(--accent);
}

.demo__seg:hover::before { background: rgba(170, 184, 175, 0.45); }

.demo__now {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  padding: 2.4em 18px 15px;
  background: linear-gradient(180deg, rgba(23, 29, 29, 0) 0%, rgba(23, 29, 29, 0.78) 55%, rgba(23, 29, 29, 0.92) 100%);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(13px, 1.25vw, 16px);
  line-height: 1.4;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

.demo__now.is-in { animation: cap-in 0.5s var(--ease); }

@keyframes cap-in {
  from { opacity: 0; transform: translateY(6px); }
}

.demo__script {
  list-style: decimal;
  padding-left: 20px;
  margin-top: 16px;
  display: grid;
  gap: 6px;
  font-size: 15px;
  color: var(--sage);
}


.demo__replay {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-dark);
  display: grid;
  place-items: center;
  color: var(--text-light);
  transition: border-color 250ms, color 250ms;
}

.demo__replay:hover { border-color: var(--accent); color: var(--accent); }

.demo__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 0 6px;
}

.demo__action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 100px;
  border: 1px solid rgba(212, 244, 116, 0.55);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 500;
  transition: background 250ms, color 250ms;
}

.demo__action::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 2px;
  border: 1.5px solid currentColor;
}

.demo__action:hover { background: var(--accent); color: var(--ink); }

/* ============================================
   CONHECIMENTO VIRA LUCRO — Fala Clara
   ============================================ */

:root { --fc-serif: 'Fraunces', Georgia, 'Times New Roman', serif; }

.stage-kn {
  --petrol: #0F3F3C;
  --tang: #FF6B3D;
  --peach: #FFD2BF;
  --areia: #F3EBDD;
  --carvao: #142321;
  --serif: var(--fc-serif);
}

.stage-kn > * { position: absolute; transform-origin: 0 0; }

/* wordmark da marca fictícia */
.fc-wm { font-family: var(--fc-serif); font-weight: 600; letter-spacing: -0.02em; line-height: 1; white-space: nowrap; }
.fc-wm i { font-style: italic; font-weight: 500; color: var(--tang); }

/* ---------- 1. anotações da Marina e briefing ---------- */

.kn-notes {
  left: 4%;
  top: 8%;
  width: 52%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.15em 1.25em;
}

.kn-note {
  position: relative;
  padding: 1em 1.05em 1.1em;
  border-radius: 0.2em;
  background: #FFF0A3;
  box-shadow: 0 0.5em 1.2em -0.5em rgba(23, 29, 29, 0.45);
  font-size: 0.98em;
  font-weight: 500;
  line-height: 1.35;
  color: #2A2A1E;
  --r: -1.5deg;
  opacity: 0;
  transform: rotate(var(--r)) translateY(0.8em) scale(0.92);
}

.kn-note--b { background: #D9F0C4; --r: 1.5deg; }
.kn-note--c { background: #FFD9C7; --r: -1deg; }

.kn-note::before {
  content: '';
  position: absolute;
  left: 50%;
  top: -0.45em;
  width: 3.2em;
  height: 0.9em;
  transform: translateX(-50%) rotate(-2deg);
  background: rgba(255, 255, 255, 0.55);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.is-s0 .kn-note { opacity: 1; transform: rotate(var(--r)); transition-duration: 0.6s; transition-delay: calc(var(--i) * 0.95s + 0.3s); }

.kn-brief {
  left: 60%;
  top: 10%;
  width: 36%;
  padding: 1.3em 1.4em 1.2em;
  background: #fff;
  border-radius: 0.6em;
  box-shadow: 0 1em 2.4em -1em rgba(23, 29, 29, 0.35);
  opacity: 0;
  transform: translateX(1.5em);
}

.kn-tag {
  display: inline-block;
  padding: 0.15em 0.6em;
  border-radius: 100px;
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.74em;
}

.kn-brief__who {
  margin-top: 0.6em;
  font-family: var(--font-display);
  font-size: 1.3em;
  font-weight: 600;
  line-height: 1.15;
}

.kn-brief__who span { font-family: var(--font-body); font-size: 0.62em; font-weight: 400; color: var(--sage-dim); }

.kn-brief dl { margin-top: 0.8em; display: grid; gap: 0.55em; }
.kn-brief dl div { display: grid; grid-template-columns: 5.6em 1fr; gap: 0.6em; padding-top: 0.5em; border-top: 1px solid var(--ui-line); }
.kn-brief dt { font-family: var(--font-mono); font-size: 0.78em; color: var(--sage-dim); padding-top: 0.15em; }
.kn-brief dd { font-size: 0.95em; }

.is-s0 .kn-brief { opacity: 1; transform: none; transition-delay: 6.3s; }
.is-s1 .kn-notes,
.is-s1 .kn-brief { opacity: 0; transition-delay: 0s; }

/* ---------- 2. estrutura do curso ---------- */

.kn-outline {
  left: 3%;
  top: 7%;
  width: 94%;
  opacity: 0;
  transform: translateY(1.5em);
}

.kn-label {
  font-family: var(--font-mono);
  font-size: 0.78em;
  color: var(--sage-dim);
  margin-bottom: 0.8em;
}

.kn-mods {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2em;
}

.kn-mods li {
  display: flex;
  flex-direction: column;
  padding: 1.2em 1.3em;
  background: #fff;
  border-top: 3px solid var(--ink);
  border-radius: 0 0 0.6em 0.6em;
  box-shadow: 0 0.6em 1.6em -0.8em rgba(23, 29, 29, 0.3);
  opacity: 0;
  transform: translateY(1em);
}

.kn-mods li.kn-mod--key { border-top-color: var(--accent-deep); background: #FBFDF4; }

.kn-n { font-family: var(--font-mono); font-size: 0.8em; color: var(--sage-dim); }

.kn-mod__t {
  margin: 0.3em 0 0.5em;
  font-family: var(--font-display);
  font-size: 1.32em;
  font-weight: 600;
  line-height: 1.15;
}

.kn-mods p:not(.kn-mod__t) { font-size: 0.98em; line-height: 1.4; margin-top: 0.6em; color: #2A3330; }
.kn-mods b { display: block; margin-bottom: 0.1em; font-family: var(--font-mono); font-size: 0.78em; font-weight: 400; color: var(--sage-dim); }
.kn-mod--key .kn-mod__act { background: var(--ok-tint); padding: 0.4em 0.55em; border-radius: 0.3em; }
.kn-mod__m { margin-top: auto; padding-top: 0.8em; font-family: var(--font-mono); font-size: 0.76em; color: var(--sage-dim); }

.is-s1 .kn-outline { opacity: 1; transform: none; transition-delay: 0.4s; }
.is-s1 .kn-mods li { opacity: 1; transform: none; transition-delay: calc(var(--i) * 2.4s + 0.9s); }
.is-s2 .kn-outline { opacity: 0; transition-delay: 0s; }

/* ---------- 3. identidade visual ---------- */

.kn-brand {
  left: 3%;
  top: 6%;
  width: 94%;
  height: 80%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 1.6em;
  padding: 1.6em 1.8em;
  background: var(--areia);
  border-radius: 0.8em;
  color: var(--carvao);
  opacity: 0;
  transform: translateY(1.5em);
}

.kn-brand__id { display: flex; flex-direction: column; justify-content: space-between; gap: 1em; min-width: 0; }
.kn-lockup { display: flex; align-items: center; gap: 0.9em; }
.kn-mark { width: 4.2em; height: 4.2em; flex-shrink: 0; }
.kn-lockup__t { display: block; min-width: 0; }
.kn-lockup .fc-wm { display: block; font-size: 3.2em; color: var(--petrol); }
.kn-sub { display: block; margin-top: 0.5em; font-size: 0.95em; color: #4E5A55; }

.kn-palette { display: flex; gap: 1em; }
.kn-palette span { display: grid; gap: 0.3em; font-family: var(--font-mono); font-size: 0.74em; color: #4E5A55; }
.kn-palette small { font-size: 0.9em; opacity: 0.7; }
.kn-palette i { display: block; width: 3.6em; height: 3.6em; border-radius: 50%; background: var(--c); box-shadow: inset 0 0 0 1px rgba(20, 35, 33, 0.12); transform: scale(0.4); opacity: 0; }

.kn-type { display: flex; align-items: center; gap: 0.8em; font-size: 0.95em; color: #4E5A55; }
.kn-type__a { font-family: var(--fc-serif); font-weight: 600; font-size: 3.2em; line-height: 1; color: var(--tang); }

.kn-brand__apps { position: relative; min-width: 0; }

.kn-app {
  position: absolute;
  border-radius: 0.6em;
  box-shadow: 0 1em 2.4em -1em rgba(20, 35, 33, 0.5);
  opacity: 0;
  transform: translateY(1em);
}

.kn-app--post {
  left: 0;
  top: 4%;
  width: 58%;
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  padding: 1.1em;
  background: var(--petrol);
  color: var(--areia);
  --r: -3deg;
}

.kn-app--post svg { width: 2.4em; height: 2.4em; }
.kn-app--post p { margin-top: auto; font-family: var(--fc-serif); font-weight: 500; font-size: 1.35em; line-height: 1.15; }
.kn-app--post span { margin-top: 0.8em; font-family: var(--font-mono); font-size: 0.7em; opacity: 0.7; }

.kn-app--cover {
  right: 0;
  bottom: 2%;
  z-index: 2;
  width: 46%;
  aspect-ratio: 0.72;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0.9em;
  overflow: hidden;
  background: var(--petrol);
  color: var(--areia);
  --r: 3deg;
}

.kn-app--cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 0; }
.kn-app--cover::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 55%; background: linear-gradient(180deg, rgba(15, 63, 60, 0), rgba(15, 63, 60, 0.92)); }
.kn-app--cover .fc-wm { position: relative; z-index: 1; font-size: 1.5em; }
.kn-app--cover small { position: relative; z-index: 1; margin-top: 0.3em; font-family: var(--font-mono); font-size: 0.66em; opacity: 0.85; }

.kn-brand__cap { position: absolute; left: 0; bottom: -1.6em; font-family: var(--font-mono); font-size: 0.72em; color: #4E5A55; opacity: 0; }

.is-s2 .kn-brand { opacity: 1; transform: none; transition-delay: 0.4s; }
.is-s2 .kn-palette i { opacity: 1; transform: none; transition-delay: calc(var(--i) * 0.15s + 1.2s); }
.is-s2 .kn-app { opacity: 1; transform: rotate(var(--r)); }
.is-s2 .kn-app--post { transition-delay: 2.2s; }
.is-s2 .kn-app--cover { transition-delay: 2.9s; }
.is-s2 .kn-brand__cap { opacity: 1; transition-delay: 3.4s; }
.is-s3 .kn-brand { opacity: 0; transition-delay: 0s; }

/* ---------- 4. aula e apostila ---------- */

.kn-lesson {
  left: 19%;
  top: 6%;
  width: 33%;
  height: 80%;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 0.6em;
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--ui-line), 0 1.2em 2.6em -1.2em rgba(23, 29, 29, 0.4);
  opacity: 0;
  transform: translateY(1.5em);
}

.kn-lesson__bar {
  display: flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.6em 0.9em;
  background: var(--petrol);
  color: var(--areia);
}

.kn-lesson__bar svg { width: 1.3em; height: 1.3em; }
.kn-lesson__bar .fc-wm { font-size: 1.05em; }
.kn-lesson__bar > span:last-child { margin-left: auto; font-family: var(--font-mono); font-size: 0.72em; opacity: 0.8; }

.kn-lesson__body { padding: 0.9em 1em; flex: 1; }

.kn-video {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 2 / 1;
  margin-bottom: 0.75em;
  border-radius: 0.5em;
  background: var(--areia);
  overflow: hidden;
}

.kn-video__ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }

.kn-video__play {
  position: absolute;
  left: 0.7em;
  bottom: 0.7em;
  width: 2.3em;
  height: 2.3em;
  border-radius: 50%;
  background: var(--tang);
  box-shadow: 0 0.4em 1em -0.3em rgba(20, 35, 33, 0.5);
}

.kn-video__play::before {
  content: '';
  position: absolute;
  left: 54%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-left: 0.7em solid var(--carvao);
  border-top: 0.45em solid transparent;
  border-bottom: 0.45em solid transparent;
}

.kn-video__time {
  position: absolute;
  right: 0.7em;
  bottom: 0.7em;
  padding: 0.15em 0.5em;
  border-radius: 0.3em;
  background: rgba(20, 35, 33, 0.75);
  color: var(--areia);
  font-family: var(--font-mono);
  font-size: 0.72em;
}

.kn-lesson__t { font-family: var(--fc-serif); font-weight: 500; font-size: 1.3em; color: var(--petrol); line-height: 1.15; margin-bottom: 0.2em; }

.kn-act { margin-top: 0.7em; padding: 0.7em 0.85em; background: var(--areia); border-radius: 0.5em; }
.kn-act__k { font-family: var(--font-mono); font-size: 0.74em; color: var(--tang); }
.kn-act p { font-size: 0.9em; margin: 0.25em 0 0.6em; }
.kn-slots { display: flex; gap: 0.35em; }
.kn-slots i { flex: 1; padding: 0.4em 0.3em; border: 1.5px dashed rgba(15, 63, 60, 0.4); border-radius: 0.35em; text-align: center; font-style: normal; font-size: 0.78em; color: var(--petrol); }

.kn-progress { display: flex; align-items: center; gap: 0.6em; padding: 0.6em 1.1em; border-top: 1px solid var(--ui-line); font-family: var(--font-mono); font-size: 0.74em; color: var(--sage-dim); }
.kn-progress i { flex: 1; height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--tang) 44%, #EEE6DA 44%); }

.is-s3 .kn-lesson { opacity: 1; transform: none; transition-delay: 0.4s; }

.kn-book {
  left: 56%;
  top: 7%;
  width: 30%;
  height: 80%;
  opacity: 0;
  transform: translateY(1.5em);
}

.kn-page {
  position: absolute;
  top: 0;
  left: 0;
  width: 70%;
  aspect-ratio: 0.72;
  display: flex;
  flex-direction: column;
  padding: 1.1em 1em;
  background: #fff;
  border-radius: 0.2em;
  box-shadow: 0 0.8em 1.8em -0.8em rgba(23, 29, 29, 0.45);
  font-size: 0.8em;
  transition-duration: 1s;
}

.kn-page--cover { background: var(--petrol); color: var(--areia); align-items: flex-start; overflow: hidden; }
.kn-cover__ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 0; }
.kn-page--cover::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 50%; background: linear-gradient(180deg, rgba(15, 63, 60, 0), rgba(15, 63, 60, 0.92)); }
.kn-page--cover > span, .kn-cover__mark { position: relative; z-index: 1; }
.kn-cover__mark { width: 2em; height: 2em; }
.kn-cover__t { margin-top: auto; font-size: 2em; }
.kn-cover__s { margin-top: 0.4em; font-family: var(--font-mono); font-size: 0.78em; opacity: 0.85; }
.kn-cover__a { margin-top: 1.1em; padding-top: 0.6em; border-top: 1px solid rgba(243, 235, 221, 0.35); width: 100%; font-family: var(--font-mono); font-size: 0.78em; }

.kn-pg__k { font-family: var(--font-mono); font-size: 0.78em; color: var(--tang); }
.kn-toc { display: flex; align-items: baseline; gap: 0.5em; padding: 0.55em 0; border-bottom: 1px solid #EEE6DA; font-size: 0.92em; }
.kn-toc b { font-family: var(--fc-serif); color: var(--petrol); }
.kn-toc i { margin-left: auto; font-style: normal; font-family: var(--font-mono); font-size: 0.85em; color: var(--sage-dim); }
.kn-toc--x { color: #5B5650; }
.kn-page--toc .kn-pg__k { margin-bottom: 0.5em; }

.kn-pg__t { margin: 0.25em 0 0.5em; font-family: var(--fc-serif); font-weight: 500; font-size: 1.4em; line-height: 1.1; color: var(--petrol); }
.kn-pg__p { font-size: 0.9em; line-height: 1.5; color: #2A3330; }
.kn-pg__tip { display: flex; align-items: center; gap: 0.5em; margin-top: 0.8em; padding: 0.55em 0.65em; background: var(--areia); border-left: 3px solid var(--tang); font-size: 0.85em; }
.kn-pg__tip svg { width: 2.4em; height: 2.4em; flex-shrink: 0; }
.kn-pg__n { margin-top: auto; align-self: flex-end; font-family: var(--font-mono); font-size: 0.75em; color: var(--sage-dim); }

.kn-page--cover { transform: translate(0, 0) rotate(-4deg); }
.kn-page--toc { opacity: 0; transform: translate(10%, 4%); }
.kn-page--inner { z-index: 2; transform: translate(46%, 10%) rotate(2deg); }

.is-s3 .kn-book { opacity: 1; transform: none; transition-delay: 1s; }

/* ---------- 5. revisão da especialista ---------- */

.kn-review {
  left: 3%;
  top: 7%;
  width: 30%;
  padding: 1.2em 1.3em 1.3em;
  background: #fff;
  border-radius: 0.7em;
  box-shadow: 0 0 0 1px var(--ui-line), 0 1.2em 2.6em -1.2em rgba(23, 29, 29, 0.4);
  opacity: 0;
  transform: translateX(-1.5em);
}

.kn-review__head { display: flex; align-items: center; gap: 0.8em; }
.kn-review__head img { width: 3.4em; height: 3.4em; border-radius: 50%; object-fit: cover; box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--accent); }
.kn-review__head b { display: block; font-family: var(--font-display); font-size: 1.1em; font-weight: 600; line-height: 1.15; }
.kn-review__head small { display: block; margin-top: 0.15em; font-size: 0.8em; color: var(--sage-dim); }

.kn-check { margin-top: 1em; display: grid; gap: 0.45em; }

.kn-check li {
  display: flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.55em 0.7em;
  border-radius: 0.4em;
  background: #F2F4EE;
  font-size: 0.92em;
  opacity: 0.4;
}

.kn-check li::before {
  content: '✓';
  width: 1.5em;
  height: 1.5em;
  flex-shrink: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #DDE3DA;
  color: transparent;
  font-size: 0.8em;
  font-weight: 700;
  transition: background-color 0.5s, color 0.5s;
}

.kn-review__ok {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  margin-top: 1em;
  padding: 0.45em 0.9em;
  border-radius: 100px;
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8em;
  opacity: 0;
  transform: translateY(0.6em);
}

.kn-review__ok::before { content: '✓'; font-weight: 700; }

.is-s4 .kn-review { opacity: 1; transform: none; transition-delay: 0.3s; }
.is-s4 .kn-check li { opacity: 1; background: var(--ok-tint); transition-delay: calc(var(--i) * 0.9s + 1s); }
.is-s4 .kn-check li::before { background: var(--accent-deep); color: #fff; transition-delay: calc(var(--i) * 0.9s + 1s); }
.is-s4 .kn-review__ok { opacity: 1; transform: none; transition-delay: 4.9s; }

.is-s4 .kn-lesson { left: 37%; width: 30%; }
.is-s4 .kn-book { left: 70%; width: 27%; }
.is-s4 .kn-page--cover { z-index: 3; transform: translate(46%, 7%) rotate(5deg); transition-delay: 0.6s; }
.is-s4 .kn-page--toc { opacity: 1; transform: translate(-4%, 4%) rotate(-7deg); transition-delay: 0.4s; }
.is-s4 .kn-page--inner { transform: translate(20%, 0) rotate(-1.5deg); transition-delay: 0.4s; }

/* ---------- 6. página de vendas e inscrições ---------- */

.kn-sale {
  left: 3%;
  top: 6%;
  width: 62%;
  height: 80%;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 0.6em;
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--ui-line), 0 2em 4em -1.6em rgba(23, 29, 29, 0.55);
  opacity: 0;
  transform: translateY(1.5em);
}

.kn-sale__bar { padding: 0.55em 0.9em; background: #EFEDE8; font-family: var(--font-mono); font-size: 0.74em; color: #6B665E; }

.kn-sale__body {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 1.4em;
  align-items: center;
  padding: 1.6em 1.8em;
  background: var(--areia);
  color: var(--carvao);
}

.kn-sale__k { font-family: var(--font-mono); font-size: 0.74em; color: var(--tang); }
.kn-sale__t { margin: 0.35em 0 0.55em; font-family: var(--fc-serif); font-weight: 500; font-size: 2em; line-height: 1.05; color: var(--petrol); }
.kn-sale__p { font-size: 0.92em; line-height: 1.5; color: #3E4A46; }
.kn-sale__copy ul { margin-top: 0.8em; display: grid; gap: 0.3em; }
.kn-sale__copy li { font-size: 0.88em; }
.kn-sale__copy li::before { content: '✓ '; color: var(--tang); font-weight: 700; }

.kn-sale__visual { display: flex; flex-direction: column; align-items: center; }
.kn-sale__ph { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; object-position: 45% 30%; border-radius: 0.6em; }

.kn-sale__buy {
  position: relative;
  align-self: stretch;
  margin-top: -1.2em;
  display: grid;
  gap: 0.25em;
  justify-items: start;
  padding: 1.2em 1.1em;
  background: #fff;
  border-radius: 0.6em;
  box-shadow: 0 0.8em 1.8em -1em rgba(20, 35, 33, 0.35);
}

.kn-sale__price { font-family: var(--fc-serif); font-size: 2.2em; line-height: 1; color: var(--petrol); }
.kn-sale__inst { font-size: 0.82em; color: #6B665E; }
.kn-sale__btn { margin-top: 0.7em; padding: 0.6em 1em; border-radius: 100px; background: var(--tang); color: var(--carvao); font-weight: 600; font-size: 0.9em; }

.kn-inbox {
  left: 68.5%;
  top: 6%;
  width: 28.5%;
  display: grid;
  gap: 0.5em;
  padding: 1.1em 1.2em 1.2em;
  background: #fff;
  border-radius: 0.7em;
  box-shadow: 0 0 0 1px var(--ui-line), 0 1.2em 2.6em -1.2em rgba(23, 29, 29, 0.4);
  opacity: 0;
  transform: translateX(1.5em);
}

.kn-inbox .kn-label { margin-bottom: 0.2em; }

.kn-toast {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0 0.6em;
  padding: 0.6em 0.75em;
  border-radius: 0.5em;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.86em;
  opacity: 0;
  transform: translateX(1em);
}

.kn-toast b { grid-column: 1; color: var(--accent); font-weight: 600; }
.kn-toast > span { grid-column: 1; }
.kn-toast i { grid-column: 2; grid-row: 1 / 3; align-self: center; font-style: normal; font-family: var(--font-mono); font-size: 0.78em; color: var(--sage); }

.kn-inbox__sum { margin-top: 0.3em; padding-top: 0.7em; border-top: 1px solid var(--ui-line); font-size: 0.86em; color: #3D4744; opacity: 0; }
.kn-inbox__sum b { display: block; font-family: var(--font-display); font-size: 2.2em; line-height: 1; color: var(--ink); }

.is-s5 .kn-sale { opacity: 1; transform: none; transition-delay: 0.4s; }
.is-s5 .kn-inbox { opacity: 1; transform: none; transition-delay: 1.4s; }
.is-s5 .kn-toast { opacity: 1; transform: none; transition-delay: calc(var(--i) * 1.3s + 2.2s); }
.is-s5 .kn-inbox__sum { opacity: 1; transition-delay: 6.2s; }
.is-s5 .kn-lesson,
.is-s5 .kn-book,
.is-s5 .kn-review { opacity: 0; transition-delay: 0s; }

/* ---------- celular (palco 3:4) ---------- */

@container (max-width: 560px) {
  .sol--wide .demo__stage.stage-kn { aspect-ratio: 3 / 4; font-size: 11px; }

  .kn-notes { left: 4%; top: 4%; width: 92%; gap: 0.85em 0.9em; }
  .kn-note { padding: 0.55em 0.65em 0.65em; font-size: 0.88em; }
  .kn-brief { left: 4%; top: 44%; width: 92%; padding: 0.75em 0.9em 0.8em; }
  .kn-brief__who { margin-top: 0.4em; font-size: 1.15em; }
  .kn-brief dl { margin-top: 0.5em; gap: 0.25em; }
  .kn-brief dl div { grid-template-columns: 4.4em 1fr; padding-top: 0.25em; }
  .kn-brief dd { font-size: 0.86em; }

  .kn-outline { left: 4%; top: 4%; width: 92%; }
  .kn-mods { grid-template-columns: minmax(0, 1fr); gap: 0.6em; }
  .kn-mods li { padding: 0.7em 0.85em 0.75em; }
  .kn-mod__t { margin: 0.1em 0 0.25em; font-size: 1.12em; }
  .kn-mods p:not(.kn-mod__t) { margin-top: 0.25em; font-size: 0.92em; }
  .kn-mods b { display: inline; margin-right: 0.35em; }
  .kn-mod__m { display: none; }

  .kn-brand { left: 4%; top: 4%; width: 92%; height: 80%; display: flex; flex-direction: column; gap: 0.7em; padding: 1em; }
  .kn-brand__id { justify-content: flex-start; gap: 0.7em; }
  .kn-mark { width: 3em; height: 3em; }
  .kn-lockup .fc-wm { font-size: 2.2em; }
  .kn-sub { margin-top: 0.3em; font-size: 0.85em; }
  .kn-palette { gap: 0.8em; }
  .kn-palette i { width: 2.6em; height: 2.6em; }
  .kn-palette small { display: none; }
  .kn-type { font-size: 0.85em; }
  .kn-type__a { font-size: 2.4em; }
  .kn-brand__apps { flex: 1; min-height: 0; }
  .kn-app--post { top: 0; width: 50%; padding: 0.8em; }
  .kn-app--post p { font-size: 1.15em; }
  .kn-app--cover { bottom: 0; width: 42%; }
  .kn-brand__cap { display: none; }

  .kn-lesson { left: 5%; top: 4%; width: 90%; height: 50%; }
  .kn-lesson .kn-act { display: none; }
  .kn-book { left: 22%; top: 57%; width: 56%; height: 28%; }
  .kn-page { width: 46%; }

  .kn-review { left: 4%; top: 4%; width: 92%; padding: 0.9em 1em 1em; }
  .kn-check { margin-top: 0.7em; gap: 0.35em; }
  .kn-check li { padding: 0.4em 0.6em; font-size: 0.9em; }
  .kn-review__ok { margin-top: 0.7em; }
  .is-s4 .kn-lesson { opacity: 0; }
  .is-s4 .kn-book { left: 10%; top: 50%; width: 80%; height: 30%; }
  .is-s4 .kn-page { width: 36%; }

  .kn-sale { left: 4%; top: 3%; width: 92%; height: 52%; }
  .kn-sale__body { grid-template-columns: minmax(0, 1fr); gap: 0.6em; padding: 0.9em 1em; align-items: start; }
  .kn-sale__t { font-size: 1.6em; }
  .kn-sale__copy ul { display: none; }
  .kn-sale__visual { flex-direction: row; align-items: center; gap: 0.7em; }
  .kn-sale__ph { width: 46%; flex-shrink: 0; }
  .kn-sale__buy { margin-top: 0; flex: 1; padding: 0.7em 0.8em; }
  .kn-sale__price { font-size: 1.7em; }
  .kn-sale__btn { padding: 0.45em 0.7em; }
  .kn-inbox { left: 4%; top: 58%; width: 92%; gap: 0.4em; padding: 0.8em 0.9em 0.9em; }
  .kn-toast:nth-of-type(3) { display: none; }
  .kn-inbox__sum { display: flex; align-items: baseline; gap: 0.4em; margin-top: 0.1em; padding-top: 0.5em; }
  .kn-inbox__sum b { font-size: 1.4em; }
}

/* ============================================
   PRÉVIAS (diálogos)
   ============================================ */

.dlg {
  width: min(760px, calc(100vw - 24px));
  max-width: none;
  height: auto;
  max-height: min(88vh, 900px);
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 40px 120px -20px rgba(0, 0, 0, 0.7);
  overflow: hidden;
}

.dlg[open] { display: flex; flex-direction: column; animation: dlg-in 0.4s var(--ease); }
.dlg::backdrop { background: rgba(10, 14, 14, 0.72); backdrop-filter: blur(4px); }

@keyframes dlg-in {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
}

.dlg :focus-visible { outline-color: var(--accent-deep); }

.dlg__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px 12px 20px;
  background: var(--ink);
  color: var(--text-mid);
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.dlg__close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--text-light);
  font-size: 15px;
  border: 1px solid var(--border-dark);
}

.dlg__close:hover { color: var(--accent); border-color: var(--accent); }
.dlg__close:focus-visible { outline-color: var(--accent); }

.dlg__body { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 28px clamp(18px, 4vw, 44px) 36px; overscroll-behavior: contain; }

/* aula */

.dlg--lesson .dlg__body { background: #FBF6EE; }
.lesson { max-width: 620px; margin: 0 auto; color: #142321; }

.lesson__video {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 7;
  margin-bottom: 20px;
  border-radius: 12px;
  background: #EFE4D2;
  overflow: hidden;
}

.lesson__ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 32%; }
.lesson__play { position: absolute; left: 16px; bottom: 16px; width: 48px; height: 48px; border-radius: 50%; background: #142321; }
.lesson__play::before { content: ''; position: absolute; left: 53%; top: 50%; transform: translate(-50%, -50%); border-left: 15px solid #F3EBDD; border-top: 9px solid transparent; border-bottom: 9px solid transparent; }
.lesson__time { position: absolute; right: 16px; bottom: 16px; padding: 3px 9px; border-radius: 6px; background: rgba(20, 35, 33, 0.78); color: #F3EBDD; font-family: var(--font-mono); font-size: 12px; }
.lesson__k { font-family: var(--font-mono); font-size: 12px; color: #FF6B3D; }
.lesson__t { margin: 6px 0 14px; font-family: var(--fc-serif); font-weight: 400; font-size: clamp(26px, 4vw, 34px); line-height: 1.1; color: #0F3F3C; }
.lesson > p { font-size: 16px; line-height: 1.7; }
.lesson__moves { margin: 16px 0 24px; display: grid; gap: 10px; }
.lesson__moves li { padding: 12px 16px; background: #fff; border-left: 3px solid #0F3F3C; border-radius: 0 8px 8px 0; font-size: 15.5px; line-height: 1.55; }
.lesson__act { padding: 22px; background: #fff; border-radius: 12px; box-shadow: 0 0 0 1px rgba(15, 63, 60, 0.12); }
.lesson__act-k { font-family: var(--font-mono); font-size: 12px; color: #FF6B3D; }
.lesson__act-t { margin: 4px 0 14px; font-size: 15.5px; font-weight: 500; }
.lesson__slots { display: grid; gap: 8px; }
.lesson__slot { display: grid; grid-template-columns: 96px 1fr; gap: 10px; align-items: center; padding: 10px 12px; border: 1.5px dashed rgba(15, 63, 60, 0.3); border-radius: 8px; min-height: 48px; }
.lesson__slot span { font-family: var(--fc-serif); color: #0F3F3C; }
.lesson__slot p { font-size: 14.5px; line-height: 1.45; }
.lesson__slot.is-filled { border-style: solid; background: #F3EBDD; }
.lesson__slot.is-ok { border-color: #5E7A1F; background: var(--ok-tint); }
.lesson__slot.is-bad { border-color: var(--warn); background: var(--warn-tint); }
.lesson__options { display: grid; gap: 8px; margin-top: 14px; }
.lesson__opt { padding: 12px 14px; border-radius: 8px; background: #0F3F3C; color: #F3EBDD; text-align: left; font-size: 14.5px; line-height: 1.45; transition: opacity 250ms, transform 250ms var(--ease); }
.lesson__opt:hover:not(:disabled) { transform: translateX(4px); }
.lesson__opt:disabled { opacity: 0.25; cursor: default; }
.lesson__opt:focus-visible { outline: 2px solid #FF6B3D; outline-offset: 2px; }
.lesson__fb { min-height: 1.6em; margin-top: 12px; font-weight: 500; }
.lesson__reset { margin-top: 4px; font-size: 14px; color: #0F3F3C; text-decoration: underline; text-underline-offset: 3px; }

/* apostila */

.dlg--book { width: min(620px, calc(100vw - 24px)); }
.dlg--book .dlg__body { background: #E9E4DA; padding: 26px 18px 22px; }
.book__view { position: relative; width: min(430px, 100%); aspect-ratio: 0.72; margin: 0 auto; perspective: 1400px; }

.bp {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: 9% 9% 7%;
  background: #fff;
  color: #142321;
  box-shadow: 0 20px 40px -18px rgba(20, 35, 33, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateX(6%) rotateY(-8deg);
  transform-origin: left center;
  transition: opacity 0.45s ease, transform 0.55s var(--ease), visibility 0s linear 0.55s;
  overflow: hidden;
  font-size: clamp(12.5px, 3.3vw, 14.5px);
  line-height: 1.6;
}

.bp.is-on { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.bp.is-past { transform: translateX(-6%) rotateY(8deg); }

.bp--cover { background: #0F3F3C; color: #F3EBDD; }
.bp__ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 0; }
.bp--cover > p { position: relative; z-index: 1; }
.bp--cover::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 50%; background: linear-gradient(180deg, rgba(15, 63, 60, 0), rgba(15, 63, 60, 0.92)); }
.bp__mark { position: relative; z-index: 1; width: 14%; height: auto; }
.bp__scene { display: block; width: 100%; flex: 1 1 0; min-height: 0; max-height: 50%; margin-top: 12px; object-fit: cover; object-position: 50% 35%; border-radius: 6px; }
.bp--act { position: relative; }
.bp__cards { position: absolute; top: 6%; right: 7%; width: 30%; height: auto; }
.bp--act > .bp__k, .bp--act > .bp__t { padding-right: 34%; }
.bp__toc li svg { width: 1.9em; height: 1.9em; flex-shrink: 0; }
.bp__brand { margin-top: auto; font-size: 2.9em; }
.bp__sub { margin-top: 8px; font-size: 1.05em; opacity: 0.85; }
.bp__kind { margin-top: 28px; font-family: var(--font-mono); font-size: 0.82em; color: #FF6B3D; }
.bp__author { padding-top: 10px; margin-top: 8px; border-top: 1px solid rgba(243, 235, 221, 0.35); font-family: var(--font-mono); font-size: 0.85em; }
.bp__k { font-family: var(--font-mono); font-size: 0.8em; color: #FF6B3D; }
.bp__t { margin: 6px 0 12px; font-family: var(--fc-serif); font-size: 1.75em; line-height: 1.12; color: #0F3F3C; }
.bp > p + p { margin-top: 0.7em; }
.bp__toc { margin: 16px 0 18px; }
.bp__toc li { display: flex; align-items: baseline; gap: 10px; padding: 10px 0; border-bottom: 1px solid #EEE6DA; }
.bp__toc b { font-family: var(--fc-serif); font-weight: 400; color: #0F3F3C; width: 1.9em; text-align: center; }
.bp__toc i { margin-left: auto; font-style: normal; font-family: var(--font-mono); font-size: 0.85em; color: #8A8478; }
.bp__intro { color: #5B5650; }
.bp__tip { display: flex; align-items: center; gap: 12px; margin-top: auto !important; padding: 10px 12px; background: #F3EBDD; border-left: 3px solid #FF6B3D; }
.bp__tip svg { width: 46px; height: 46px; flex-shrink: 0; }
.bp__tip b { display: block; font-family: var(--font-mono); font-size: 0.8em; font-weight: 400; color: #FF6B3D; }
.bp__field { display: grid; gap: 2px; margin-top: 12px; padding-bottom: 8px; border-bottom: 1px solid #D9CFC0; }
.bp__field b { font-family: var(--fc-serif); font-weight: 400; color: #0F3F3C; font-size: 1.1em; }
.bp__field span { font-size: 0.86em; color: #8A8478; }
.bp__field i { min-height: 1.5em; font-style: italic; color: #0F3F3C; }
.bp__n { margin-top: auto; align-self: flex-end; padding-top: 8px; font-family: var(--font-mono); font-size: 0.78em; color: #8A8478; }

.book__nav { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 18px; }
.book__btn { width: 44px; height: 44px; border-radius: 50%; background: #142321; color: #F3EBDD; font-size: 18px; transition: opacity 200ms; }
.book__btn:disabled { opacity: 0.25; cursor: default; }
.book__count { min-width: 64px; text-align: center; font-family: var(--font-mono); font-size: 13px; color: #142321; }

/* ============================================
   RESPONSIVO
   ============================================ */

@media (max-width: 1024px) {
  .sol {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
    padding: 64px 0;
  }
}

@media (max-width: 900px) {
  .ai-grid { gap: 18px; }
  .sol--wide .sol__copy { display: block; }
  .sol--wide .sol__gains { margin-top: 28px; }
}

@media (max-width: 640px) {
  .ai-grid { grid-template-columns: 1fr; }
  .ai-card { padding: 18px 18px 20px; }
  .ai-chat { min-height: 0; padding: 14px; }
  .sol { padding: 56px 0; }
  .demo__bars { flex: 1 1 120px; }
  .demo__seg { flex: 1; width: auto; }
  .demo__actions { flex: 1 1 100%; margin: 0; }
  .sol__lead { font-size: 16px; }
  .demo__action { flex: 1 1 auto; justify-content: center; }
}

/* container responsivo do palco em telas estreitas */
@container (max-width: 560px) {
  .demo__stage,
  .sol--wide .demo__stage {
    aspect-ratio: 4 / 5;
    font-size: 11.5px;
  }

  .demo__now { padding: 2em 12px 11px; font-size: 12.5px; }
}