/* km · Constância — "De 6 em 6, de 10 em 10." (noite com fim de tarde do cerrado) */
.km {
  --km-noite: color-mix(in oklab, var(--oliva-fundo) 70%, black);
  --km-fundo: color-mix(in oklab, var(--oliva-fundo) 45%, black);
  --km-laranja: #e08a4a;
  --km-tijolo: #c6906e;
  position: relative; isolation: isolate; color: var(--creme);
  background: linear-gradient(180deg in oklab, var(--km-noite), var(--km-fundo) 40%, var(--km-fundo) 70%, var(--km-noite));
}
.km-grao { position: absolute; inset: 0; z-index: 9; pointer-events: none; opacity: .06; mix-blend-mode: overlay;
  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; }

/* ---------- abertura: céu de fim de tarde ---------- */
.km-intro { position: relative; overflow: clip; padding: clamp(5rem, 11vw, 9.5rem) var(--margem) clamp(3rem, 6vw, 5rem); }
.km-ceu { position: absolute; inset: 0; z-index: -1; }
.km-ceu img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 70%; display: block; opacity: .55; filter: saturate(1.1) blur(1px);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 25%, #000 55%, transparent); mask-image: linear-gradient(180deg, transparent, #000 25%, #000 55%, transparent); }
.km-ceu::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg in oklab, var(--km-noite) 10%, color-mix(in oklab, var(--km-noite) 55%, transparent) 55%, transparent),
              linear-gradient(0deg in oklab, var(--km-fundo), transparent 50%); }
.km-intro-txt { position: relative; max-width: 50rem; }
.km-sobre { margin: 0 0 1.4rem; display: flex; align-items: center; flex-wrap: wrap; gap: .55rem 1rem; font-size: .98rem; font-weight: 600; letter-spacing: .02em; color: var(--fio-2); }
.km-sobre > span:first-child { display: inline-flex; align-items: center; gap: .55rem; }
.km-sobre > span:first-child::before { content: ""; width: 1.9rem; height: 2px; background: repeating-linear-gradient(90deg, var(--fio-1) 0 5px, transparent 5px 8px); }
.km-tag { font-weight: 500; color: color-mix(in oklab, var(--km-laranja) 70%, var(--creme)); }
.km-titulo { margin: 0; font-family: var(--f-titulo); line-height: 1; letter-spacing: -.03em; font-size: clamp(3rem, 1rem + 6.4vw, 7.6rem); text-wrap: balance; }
.km-titulo span { display: block; }
.km-titulo-forte { font-weight: 780; color: var(--creme); }
.km-titulo-leve { font-weight: 300; color: var(--fio-2); }
.km-segredo { margin: 1rem 0 0; font-family: var(--f-titulo); font-weight: 600; font-size: clamp(1.4rem, 1rem + 1.4vw, 2.3rem); letter-spacing: -.02em; color: var(--km-laranja); }
.km-segredo span { display: block; margin-top: .4rem; font-family: var(--f-texto); font-size: .95rem; font-weight: 600; letter-spacing: .01em; color: color-mix(in oklab, var(--creme) 75%, transparent); }
.km-apoio { margin: 1.6rem 0 0; max-width: 32em; font-size: var(--t-apoio); line-height: 1.55; color: color-mix(in oklab, var(--creme) 88%, transparent); text-wrap: pretty; }

/* ---------- rolagem fixa ---------- */
.km-trilha { position: relative; height: 340vh; }
.km-palco { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: clip;
  display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); align-items: center; }
.km-luz { position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(60% 70% at 80% 100% in oklab, color-mix(in oklab, var(--km-laranja) 34%, transparent), transparent),
              radial-gradient(50% 60% at 20% 50% in oklab, color-mix(in oklab, var(--oliva) 40%, transparent), transparent); transition: opacity .9s var(--ease); }
.km-luz::after { content: ""; position: absolute; left: 4%; top: 18%; width: 56%; height: 64%; border-radius: 50%; opacity: 0; transition: opacity 1.1s var(--ease);
  background: radial-gradient(closest-side in oklab, color-mix(in oklab, var(--km-laranja) 30%, transparent), transparent); }
.km-fim .km-luz::after { opacity: 1; }
.km-foto { grid-column: 2; grid-row: 1; position: relative; margin: 0; height: 100%; }
.km-foto img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; display: block;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 38%); mask-image: linear-gradient(90deg, transparent, #000 38%); }
.km-foto figcaption { position: absolute; right: var(--margem); top: 1.4rem; font-size: .875rem; font-weight: 600; color: var(--creme);
  padding: .35rem .8rem; border-radius: 99px; background: color-mix(in oklab, var(--km-noite) 70%, transparent); }

.km-painel { grid-column: 1; grid-row: 1; position: relative; z-index: 2; padding: 0 clamp(1rem, 3vw, 3rem) 0 var(--margem); }
.km-mes { margin: 0 0 .6rem; font-size: 1rem; font-weight: 600; letter-spacing: .02em; color: var(--fio-2); }
.km-contador { margin: 0; display: flex; align-items: baseline; gap: .8rem; font-family: var(--f-titulo); }
.km-contador b { font-weight: 800; font-size: clamp(5rem, 2rem + 8vw, 10rem); line-height: .9; letter-spacing: -.05em; color: var(--creme); }
.km-contador span { font-size: clamp(1.2rem, 1rem + .8vw, 1.7rem); font-weight: 400; color: var(--fio-2); }
.km-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.km-fio { margin: 1.6rem 0 0; }
.km-fio svg { display: block; width: 100%; height: 40px; overflow: visible; }
.km-fio-base { stroke: color-mix(in oklab, var(--creme) 28%, transparent); stroke-width: 2; stroke-dasharray: 5 4; vector-effect: non-scaling-stroke; }
.km-seg { fill: none; stroke: var(--fio-2); stroke-width: 13; stroke-linecap: round; stroke-dasharray: 1 1; stroke-dashoffset: 0; vector-effect: non-scaling-stroke; }
.km-seg-ultimo { stroke: var(--km-laranja); }
.km-fio-rot { position: relative; display: flex; justify-content: space-between; margin-top: .5rem; font-size: .875rem; font-weight: 600; color: color-mix(in oklab, var(--creme) 75%, transparent); }
.km-rot-10 { color: var(--km-laranja); margin-left: auto; margin-right: 1.2rem; }

.km-falas { position: relative; margin-top: 3rem; min-height: 6.5em; }
.km-fala { margin: 0; font-size: clamp(1.25rem, 1rem + .7vw, 1.6rem); line-height: 1.35; color: color-mix(in oklab, var(--creme) 90%, transparent); max-width: 26em; }
.km-fala q { quotes: "“" "”"; font-family: var(--f-titulo); font-weight: 650; letter-spacing: -.015em; color: var(--creme); }
.km-final { display: none; }

.km-nota { position: absolute; left: var(--margem); bottom: 1.2rem; z-index: 2; margin: 0; max-width: 34rem; font-size: .875rem; line-height: 1.4; color: color-mix(in oklab, var(--creme) 62%, transparent); }

/* com JS: o fio se costura com a rolagem */
.km-vivo .km-fala { position: absolute; inset: 0 auto auto 0; opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .7s var(--ease); }
.km-vivo .km-fala.km-on { opacity: 1; transform: none; }
.km-vivo .km-seg { stroke-dashoffset: var(--o, 1); }
.km-vivo .km-painel { display: grid; grid-template-columns: minmax(0, 1fr); }
.km-vivo .km-mes { grid-row: 1; } .km-vivo .km-contador { grid-row: 2; grid-column: 1; align-self: end; } .km-vivo .km-fio { grid-row: 3; } .km-vivo .km-falas { grid-row: 4; }
.km-vivo .km-final { display: flex; grid-row: 2; grid-column: 1; align-self: end; align-items: flex-end; gap: .4rem 1.2rem; flex-wrap: wrap;
  opacity: 0; pointer-events: none; transition: opacity .7s var(--ease); }
.km-vivo .km-contador, .km-vivo .km-mes, .km-vivo .km-falas { transition: opacity .6s var(--ease); }
.km-vivo.km-fim .km-contador, .km-vivo.km-fim .km-falas { opacity: 0; }
.km-vivo.km-fim .km-final { opacity: 1; }
.km-cem { width: clamp(15rem, 10rem + 14vw, 26rem); height: auto; overflow: visible; filter: drop-shadow(0 0 1.5px var(--km-tijolo)) drop-shadow(0 10px 24px rgb(0 0 0 / .45)); }
.km-cem text { font-family: var(--f-titulo); font-weight: 820; font-size: 118px; letter-spacing: -4px; }
.km-cem-cetim { fill: url(#cr-cetim); }
.km-cem-ponto { fill: none; stroke: var(--km-tijolo); stroke-width: 1.8; stroke-dasharray: 3.2 1.8; stroke-linecap: round; }
.km-final-txt { margin: 0 0 .8rem; font-size: 1.2rem; color: color-mix(in oklab, var(--creme) 85%, transparent); }
.km-final-txt strong { display: block; font-family: var(--f-titulo); font-weight: 760; font-size: clamp(1.5rem, 1rem + 1.2vw, 2.2rem); color: var(--creme); letter-spacing: -.02em; }

/* ---------- fecho ---------- */
.km-fecho { position: relative; z-index: 2; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2.5rem, 5vw, 5rem);
  padding: clamp(4rem, 8vw, 7rem) var(--margem) clamp(5rem, 10vw, 8.5rem); max-width: 96rem; margin: 0 auto; }
.km-mala-fala { margin: 0; font-family: var(--f-titulo); font-weight: 760; font-size: clamp(2rem, 1rem + 3vw, 3.6rem); line-height: 1.02; letter-spacing: -.028em; color: var(--creme); text-wrap: balance; }
.km-mala-txt { margin: 1rem 0 0; font-size: 1.125rem; color: color-mix(in oklab, var(--creme) 85%, transparent); }
.km-marcas { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 1rem; }
.km-marcas li { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: baseline; gap: .2rem 1.2rem; padding-top: 1rem; border-top: 2px dashed color-mix(in oklab, var(--fio-1) 45%, transparent); }
.km-marcas b { font-family: var(--f-titulo); font-weight: 780; font-size: clamp(2rem, 1.4rem + 1.6vw, 3rem); letter-spacing: -.03em; min-width: 3.2em; color: var(--km-laranja); }
.km-marcas span { font-size: 1.125rem; color: color-mix(in oklab, var(--creme) 88%, transparent); }
.km-plano { align-self: end; padding: clamp(1.8rem, 3vw, 2.8rem); border-radius: 26px; background: var(--creme); color: var(--tinta); box-shadow: 0 30px 60px -30px rgb(0 0 0 / .6); }
.km-plano-tit { margin: 0; font-family: var(--f-titulo); font-weight: 760; font-size: clamp(1.8rem, 1rem + 2vw, 2.8rem); line-height: 1.04; letter-spacing: -.025em; text-wrap: balance; }
.km-plano-tit span { font-weight: 330; color: var(--oliva); }
.km-plano-txt { margin: 1rem 0 1.6rem; font-size: 1.125rem; line-height: 1.55; color: var(--tinta-2); }
.km-btn { display: inline-flex; align-items: center; justify-content: center; gap: .6rem; min-height: 3.4rem; padding: .9rem 1.6rem; border-radius: 99px;
  font-family: var(--f-titulo); font-weight: 650; font-size: 1.02rem; text-decoration: none; background: var(--oliva); color: var(--creme);
  transition: transform .25s var(--ease), background-color .25s; }
.km-btn svg { width: 1.3rem; height: 1.3rem; fill: currentColor; }
.km-btn:hover { background: color-mix(in oklab, var(--oliva) 86%, black); transform: translateY(-2px); }
.km-btn:focus-visible { outline: 3px solid var(--musgo); outline-offset: 3px; }

/* ---------- tablet e celular ---------- */
@media (max-width: 980px) {
  .km-trilha { height: 320vh; }
  .km-palco { grid-template-columns: minmax(0, 1fr); grid-template-rows: 44% minmax(0, 1fr); align-items: start; }
  .km-foto { grid-column: 1; grid-row: 1; }
  .km-foto img { object-position: 50% 26%; -webkit-mask-image: linear-gradient(0deg, transparent, #000 30%); mask-image: linear-gradient(0deg, transparent, #000 30%); }
  .km-foto figcaption { bottom: auto; top: 1rem; right: auto; left: var(--margem); }
  .km-painel { grid-row: 2; padding: .2rem var(--margem) 0; }
  .km-contador b { font-size: clamp(4.4rem, 22vw, 7rem); }
  .km-falas { margin-top: 1.6rem; }
  .km-fala { font-size: 1.2rem; }
  .km-nota { right: var(--margem); bottom: .8rem; max-width: none; padding-right: 9rem; }
  .km-nota { transition: opacity .5s; }
  .km-fim .km-nota { opacity: 0; }
  .km-fecho { grid-template-columns: minmax(0, 1fr); }
  .km-marcas li { grid-template-columns: minmax(0, 1fr); }
  .km-btn { width: 100%; }
}
@media (max-width: 420px) {
  .km-titulo { font-size: clamp(2.6rem, 13vw, 3.4rem); }
}

@media (prefers-reduced-motion: reduce) {
  .km-vivo .km-fala, .km-vivo .km-final { transition: none; }
}

/* agulha: o ponto laranja na ponta do fio */
.km-fio { position: relative; }
.km-agulha { position: absolute; top: 20px; left: calc(var(--k, 1) * 100%); width: 22px; height: 22px; margin: -11px 0 0 -11px; border-radius: 50%;
  background: var(--km-laranja); box-shadow: 0 0 0 5px color-mix(in oklab, var(--km-laranja) 30%, transparent), 0 0 26px 6px color-mix(in oklab, var(--km-laranja) 55%, transparent); }
.km-fim .km-agulha { opacity: 0; transition: opacity .5s; }
/* a foto entra na luz do fim de tarde */
.km-foto::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg in oklab, color-mix(in oklab, var(--km-noite) 55%, transparent), transparent 35%, transparent 60%, color-mix(in oklab, var(--km-laranja) 30%, transparent));
  mix-blend-mode: multiply; }
@media (max-width: 980px) {
  .km-foto::after { background: linear-gradient(180deg in oklab, transparent 50%, color-mix(in oklab, var(--km-laranja) 28%, transparent)); }
}

/* fecho: a noite depois do fim de tarde (poste e árvores da corrida noturna) */
.km-fecho .km-noite { position: absolute; z-index: -1; inset: 0 calc(50% - 50vw); overflow: clip; }
.km-fecho .km-noite img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 30%; display: block; opacity: .4; mix-blend-mode: luminosity; filter: blur(1.5px);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent); mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent); }
.km-fecho .km-noite::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg in oklab, var(--km-fundo) 25%, color-mix(in oklab, var(--km-fundo) 35%, transparent)); }
@media (min-width: 981px) { .km-fala { font-size: clamp(1.25rem, .8rem + 1vw, 1.9rem); } }
.km-cem { width: clamp(16rem, 9rem + 20vw, 31rem); }
/* celular baixo: foto um pouco menor e a nota sai do palco */
@media (max-width: 980px) and (max-height: 800px) {
  .km-palco { grid-template-rows: 38% minmax(0, 1fr); }
  .km-contador b { font-size: clamp(3.8rem, 18vw, 5.5rem); }
  .km-falas { margin-top: 1.1rem; }
  .km-nota { display: none; }
}