/* co · A conta do prato — "É para saber usar." (creme quente, granito) */
.co {
  --co-oleo: color-mix(in oklab, var(--musgo) 46%, var(--creme));
  --co-oleo-fundo: color-mix(in oklab, var(--musgo) 78%, var(--madeira));
  --co-quente: color-mix(in oklab, var(--papel) 82%, var(--madeira));
  position: relative; isolation: isolate; overflow: clip;
  padding: clamp(5rem, 11vw, 9.5rem) 0 clamp(5rem, 10vw, 8.5rem);
  background: linear-gradient(180deg in oklab, var(--papel), color-mix(in oklab, var(--papel) 70%, var(--creme)) 40%, var(--papel));
  color: var(--tinta);
}
.co-fundo { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.co-m { position: absolute; border-radius: 50%; }
.co-m1 { width: 70vmax; height: 70vmax; right: -20vmax; top: -18vmax;
  background: radial-gradient(closest-side in oklab, color-mix(in oklab, var(--creme) 80%, var(--musgo)), transparent); opacity: .55; }
.co-m2 { width: 60vmax; height: 60vmax; left: -24vmax; top: 30%;
  background: radial-gradient(closest-side in oklab, var(--co-quente), transparent); opacity: .7; }
.co-grao { position: absolute; inset: 0; z-index: 3; pointer-events: none; opacity: .05; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.4 -.2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px; }

/* ---------- topo: título + foto ---------- */
.co-topo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .82fr); align-items: center; gap: 2rem;
  padding: 0 var(--margem); max-width: 96rem; margin: 0 auto; }
.co-cab { padding-bottom: clamp(1rem, 3vw, 3rem); }
.co-sobre { margin: 0 0 1.4rem; display: flex; align-items: center; gap: .55rem; font-size: .98rem; font-weight: 600; letter-spacing: .02em; color: var(--oliva); }
.co-sobre::before { content: ""; flex: none; width: 1.9rem; height: 2px; background: repeating-linear-gradient(90deg, var(--musgo) 0 5px, transparent 5px 8px); }
.co-titulo { margin: 0; font-family: var(--f-titulo); line-height: 1.02; letter-spacing: -.028em; text-wrap: balance; }
.co-titulo span { display: block; }
.co-titulo-pre { font-weight: 330; color: var(--oliva); font-size: clamp(1.6rem, 1rem + 2vw, 2.7rem); letter-spacing: -.02em; margin-bottom: .2em; }
.co-titulo-forte { font-weight: 780; font-size: clamp(2.9rem, 1rem + 5.4vw, 6.6rem); color: var(--tinta); }
.co-apoio { margin: 1.6rem 0 0; max-width: 30em; font-size: var(--t-apoio); line-height: 1.55; color: var(--tinta-2); text-wrap: pretty; }

.co-foto::before { content: ""; position: absolute; z-index: -1; left: -18%; right: -18%; top: 4%; bottom: -6%; border-radius: 50%;
  background: radial-gradient(closest-side in oklab, color-mix(in oklab, var(--creme) 70%, var(--parede)), transparent); }
.co-foto { position: relative; isolation: isolate; margin: 0 0 -2px; align-self: end; justify-self: center; width: min(100%, 34rem);
  filter: drop-shadow(0 0 6px rgb(18 24 4 / .32)) drop-shadow(0 0 22px rgb(18 24 4 / .24)); }
.co-foto img { display: block; width: 100%; height: auto;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 9%, #000 88%, transparent 99%); mask-image: linear-gradient(90deg, transparent, #000 9%, #000 88%, transparent 99%); }
/* sombra de contato dele na bancada */
.co-foto::after { content: ""; position: absolute; left: 12%; right: 10%; bottom: -26px; height: 40px; z-index: 3;
  background: radial-gradient(closest-side, rgb(30 24 14 / .38), transparent); pointer-events: none; }

/* ---------- bancada de granito + tábua da calculadora ---------- */
.co-bancada { position: relative; z-index: 2; padding: clamp(1.4rem, 3vw, 2.6rem) var(--margem) clamp(2rem, 4vw, 3.4rem);
  background:
    linear-gradient(180deg, rgb(255 255 245 / .55), rgb(255 255 245 / 0) 10px),
    linear-gradient(180deg in oklab, rgb(40 32 20 / .0), rgb(40 32 20 / .12)),
    url(../img/co-granito.webp) 0 0 / 420px;
  box-shadow: 0 -1px 0 rgb(70 60 40 / .25), inset 0 -14px 24px -14px rgb(40 30 18 / .35); }
.co-tabua { max-width: 96rem; margin: 0 auto; display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(1.5rem, 4vw, 4rem);
  padding: clamp(1.5rem, 3.4vw, 3rem); border-radius: 26px; background: var(--jaleco);
  box-shadow: 0 30px 60px -30px rgb(30 38 6 / .45), 0 2px 0 rgb(255 255 255 / .8) inset, 0 0 0 1px rgb(70 60 40 / .12); }

.co-num { margin: 0 0 1rem; display: flex; align-items: baseline; gap: .7rem; font-size: .98rem; font-weight: 600; letter-spacing: .02em; color: var(--oliva); }
.co-num span { font-family: var(--f-titulo); font-weight: 800;  font-size: .9rem; padding: .18rem .55rem; border-radius: 99px;
  border: 1.5px dashed var(--musgo); }

.co-nove { display: flex; align-items: flex-end; gap: 1.2rem; }
.co-nove-svg { flex: none; width: clamp(7rem, 4rem + 8vw, 12.5rem); height: auto; overflow: visible; }
.co-nove-svg text { font-family: var(--f-titulo); font-weight: 820; font-size: 150px; }
.co-nove-cetim { fill: url(#cr-cetim); }
.co-nove-ponto { fill: none; stroke: var(--fio-contorno); stroke-width: 1.4; stroke-dasharray: 3.2 1.8; stroke-linecap: round; }
.co-nove-txt { margin: 0 0 .6rem; font-size: 1.15rem; line-height: 1.45; color: var(--tinta-2); max-width: 15em; }
.co-nove-txt strong { display: block; font-family: var(--f-titulo); font-weight: 760; font-size: clamp(1.4rem, 1rem + 1.2vw, 2rem); letter-spacing: -.02em; color: var(--tinta); line-height: 1.05; margin-bottom: .35rem; }

.co-calc { display: flex; flex-direction: column; justify-content: center; }
.co-calc-rot { margin: 0; font-size: 1.125rem; font-weight: 600; color: var(--tinta); }
.co-calc-rot span { font-weight: 400; color: var(--tinta-2); }
.co-conta { margin: .4rem 0 1rem; display: grid; grid-template-columns: auto 1fr; align-items: baseline; column-gap: .45em; font-family: var(--f-titulo); letter-spacing: -.03em; line-height: 1; }
.co-conta b { font-weight: 800;  }
.co-conta-g { grid-column: 1 / -1; font-size: clamp(1.6rem, 1rem + 1.6vw, 2.5rem); color: var(--oliva); font-weight: 600; display: flex; align-items: baseline; gap: .3em; }
.co-conta-g b { display: inline-block; }
.co-conta-x { display: none; }
.co-conta-g::after { content: "× 9 ="; font-weight: 330; color: var(--tinta-2); }
.co-conta-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.co-conta-kcal { grid-column: 1 / -1; display: flex; align-items: baseline; gap: .12em; font-size: clamp(4.6rem, 2rem + 7vw, 9rem); color: var(--tinta); letter-spacing: -.045em; }
.co-conta-kcal i { font-style: normal; font-size: .26em; font-weight: 600; letter-spacing: 0; color: var(--oliva); }

.co-regua { --polegar: 52px; position: relative; padding: 0 calc(var(--polegar) / 2); }
.co-escala { position: relative; height: 1.4rem; font-size: .875rem; font-weight: 600;  color: var(--tinta-2); }
.co-escala span { position: absolute; left: calc(var(--x) * 100%); transform: translateX(-50%); white-space: nowrap; }
.co-escala span:first-child { transform: translateX(-35%); }
.co-escala span:last-child { transform: translateX(-70%); }
.co-escala-k { color: var(--oliva); }
.co-trilho { position: relative; height: 64px; margin: 0 calc(var(--polegar) / -2); cursor: pointer; touch-action: pan-y; outline: none;
  -webkit-tap-highlight-color: transparent; user-select: none; -webkit-user-select: none; }
.co-trilho-base, .co-trilho-oleo { position: absolute; top: 50%; height: 18px; margin-top: -9px; border-radius: 99px; }
.co-trilho-base { left: calc(var(--polegar) / 2); right: calc(var(--polegar) / 2);
  background:
    repeating-linear-gradient(90deg, rgb(31 38 8 / .35) 0 1.5px, transparent 1.5px calc(100% / 19)),
    color-mix(in oklab, var(--parede) 70%, var(--papel));
  box-shadow: inset 0 1px 3px rgb(31 38 8 / .25); }
.co-trilho-oleo { left: calc(var(--polegar) / 2); width: calc((100% - var(--polegar)) * var(--p));
  background: linear-gradient(90deg in oklab, var(--co-oleo-fundo), var(--co-oleo)); box-shadow: inset 0 2px 2px rgb(255 255 230 / .5); }
.co-polegar { position: absolute; top: 50%; left: calc((100% - var(--polegar)) * var(--p)); width: var(--polegar); height: var(--polegar); margin-top: calc(var(--polegar) / -2);
  display: grid; place-items: center; border-radius: 50%; background: var(--jaleco);
  border: 2px dashed var(--musgo); box-shadow: 0 8px 18px -6px rgb(30 38 6 / .5), 0 0 0 5px var(--jaleco);
  transition: transform .2s var(--ease); }
.co-polegar svg { width: 26px; height: 26px; fill: var(--co-oleo-fundo); }
.co-trilho:focus-visible .co-polegar { outline: 3px solid var(--oliva); outline-offset: 4px; }
.co-trilho.co-arrastando .co-polegar { transform: scale(1.08); }
.co-nota { margin: 1rem 0 0; min-height: 3em; font-size: 1.125rem; line-height: 1.5; color: var(--tinta-2); }
.co-nota q { quotes: "“" "”"; font-weight: 650; color: var(--tinta); }

/* ---------- lições 02–04 ---------- */
.co-licoes { max-width: 96rem; margin: clamp(4rem, 8vw, 7rem) auto 0; padding: 0 var(--margem);
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(2.5rem, 4vw, 4rem) clamp(1.5rem, 3vw, 3rem); }
.co-h3 { margin: 0 0 .8rem; font-family: var(--f-titulo); font-weight: 760; font-size: clamp(1.8rem, 1rem + 2.2vw, 3rem); line-height: 1.04; letter-spacing: -.025em; text-wrap: balance; }
.co-txt { margin: 0; font-size: 1.125rem; line-height: 1.55; color: var(--tinta-2); max-width: 34em; }

.co-l2 { grid-column: 1 / span 7; }
.co-barras { list-style: none; margin: 1.8rem 0 0; padding: 0; display: grid; gap: 1.15rem; }
.co-barras li { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: .45rem 1rem; }
.co-b-nome { font-size: 1.125rem; font-weight: 600; }
.co-b-val { font-family: var(--f-titulo); font-weight: 760; font-size: 1.3rem;  color: var(--oliva); }
.co-b-barra { grid-column: 1 / -1; grid-row: 2; position: relative; height: 12px; border-radius: 99px; background: color-mix(in oklab, var(--parede) 60%, transparent); }
.co-b-barra::before, .co-b-barra::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; border-radius: 99px; }
.co-b-barra::before { width: calc(var(--v) * 100%); transform-origin: left; transition: transform 1.3s var(--ease); background: linear-gradient(90deg in oklab, var(--oliva), var(--musgo)); z-index: 1; }
.co-b-barra::after { width: calc(var(--v2, 0) * 100%); background: repeating-linear-gradient(90deg, var(--musgo) 0 5px, transparent 5px 8px); opacity: .55; height: 2px; top: 5px; }

.co-l3 { grid-column: 8 / span 5; align-self: stretch; padding: clamp(1.8rem, 3vw, 2.6rem); border-radius: 26px;
  background: radial-gradient(120% 90% at 20% 0% in oklab, var(--oliva), var(--oliva-fundo)); color: var(--creme);
  box-shadow: 0 30px 60px -30px rgb(30 38 6 / .55); }
.co-l3 .co-num { color: var(--fio-2); }
.co-l3 .co-num span { border-color: var(--fio-1); }
.co-cit { margin: 0; }
.co-cit p { margin: 0; font-family: var(--f-titulo); font-weight: 330; font-size: clamp(1.5rem, 1rem + 1.2vw, 2.1rem); line-height: 1.12; letter-spacing: -.02em; text-wrap: balance; }
.co-cit strong { font-weight: 780; text-transform: uppercase; color: var(--creme); }
.co-cit footer { margin-top: .8rem; font-size: .95rem; font-weight: 600; color: var(--fio-2); }
.co-troca { margin: 1.8rem 0 1.4rem; }
.co-troca-de { margin: 0 0 .9rem; display: flex; align-items: center; gap: .8rem; }
.co-troca-de s { font-family: var(--f-titulo); font-weight: 330; font-size: clamp(2.2rem, 1.4rem + 2vw, 3.2rem); letter-spacing: -.03em; line-height: 1;
  color: color-mix(in oklab, var(--creme) 82%, transparent); text-decoration: line-through; text-decoration-color: var(--fio-1); text-decoration-thickness: 3px; }
.co-troca-de span:not(.co-conta-sr) { font-size: 1rem; color: color-mix(in oklab, var(--creme) 85%, transparent); }
.co-troca-para { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.co-troca-para li { font-family: var(--f-titulo); font-weight: 720; font-size: clamp(1.15rem, 1rem + .5vw, 1.4rem); color: var(--oliva-fundo);
  padding: .55rem 1rem; border-radius: 99px; background: var(--creme); box-shadow: 0 0 0 3px var(--oliva), 0 0 0 4.5px var(--fio-1); }
.co-txt-claro { margin: 0; font-size: 1.125rem; line-height: 1.5; color: color-mix(in oklab, var(--creme) 88%, transparent); }

.co-l4 { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 1rem 3rem;
  padding-top: clamp(2rem, 4vw, 3.2rem); border-top: 2px dashed color-mix(in oklab, var(--musgo) 60%, transparent); }
.co-l4 .co-num { grid-column: 1 / -1; }
.co-l4 .co-dose { margin: 0; }
.co-l4 .co-lado { display: grid; gap: 1rem; justify-items: start; }
.co-dose { margin: 0 0 1.2rem; display: flex; align-items: baseline; flex-wrap: wrap; gap: .2rem 1rem; }
.co-dose b { font-family: var(--f-titulo); font-weight: 800; font-size: clamp(4.4rem, 1.5rem + 9vw, 10.5rem); letter-spacing: -.04em; line-height: .9; color: var(--tinta); }
.co-dose span { font-size: clamp(1.2rem, 1rem + .6vw, 1.6rem); font-weight: 600; color: var(--oliva); max-width: 9em; line-height: 1.2; }
.co-ex { display: grid; gap: .6rem; margin: 0; }
.co-ex p { margin: 0; display: grid; grid-template-columns: 4.6em 3rem auto; align-items: center; gap: .7rem; font-family: var(--f-titulo); font-size: clamp(1.4rem, 1rem + 1vw, 2rem); }
.co-ex-kg { text-align: right; }
.co-ex-kg { font-weight: 400; color: var(--tinta-2); }
.co-ex-g { font-weight: 780; }
.co-ex-seta { width: 2.4rem; height: 2px; background: repeating-linear-gradient(90deg, var(--musgo) 0 5px, transparent 5px 8px); position: relative; }
.co-ex-seta::after { content: ""; position: absolute; right: -2px; top: -4px; width: 8px; height: 8px; border-top: 2px solid var(--musgo); border-right: 2px solid var(--musgo); transform: rotate(45deg); }

/* ---------- tablet e celular ---------- */
@media (max-width: 980px) {
  .co-topo { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .co-cab { padding-bottom: 1.5rem; }
  .co-tabua { grid-template-columns: minmax(0, 1fr); }
  .co-licoes { grid-template-columns: minmax(0, 1fr); }
  .co-l2, .co-l3, .co-l4 { grid-column: 1; grid-row: auto; }
  .co-l4 { grid-template-columns: minmax(0, 1fr); }
  .co-foto { width: min(calc(100% + 2 * var(--margem)), 34rem); margin-top: .5rem; }
  .co-escala span.co-esc-m { display: none; }
}
@media (max-width: 520px) {
  .co-tabua { padding: 1.4rem 1.15rem 1.6rem; border-radius: 22px; }
  .co-bancada { padding-left: .75rem; padding-right: .75rem; }
  .co-nove { gap: .8rem; }
  .co-nove-txt { font-size: 1.125rem; }
  .co-regua { --polegar: 48px; }
  .co-troca { grid-template-columns: 1fr; }
}

/* barras: crescem quando a lição entra */
.js .co-l2:not(.rev-in) .co-b-barra::before { transform: scaleX(0); }
.co-barras li:nth-child(2) .co-b-barra::before { transition-delay: .1s; }
.co-barras li:nth-child(3) .co-b-barra::before { transition-delay: .2s; }
.co-barras li:nth-child(4) .co-b-barra::before { transition-delay: .3s; }
.co-barras li:nth-child(5) .co-b-barra::before { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) { .js .co-l2 .co-b-barra::before { transform: none; } }