/* Mega Brain motion-kit v1 — zero dependência.
   Curvas e durações medidas em 2026-10-17 (PLAYBOOK-WEB-IMERSIVO-2026.md §1). */
:root {
  --ease-tesla:  cubic-bezier(.5, 0, 0, .75);    /* UI firme, 0,33 s */
  --ease-apple:  cubic-bezier(.4, 0, .6, 1);     /* padrão Apple, 0,32 s */
  --ease-lando:  cubic-bezier(.65, .05, 0, 1);   /* revelação elástica, 0,75 s */
  --ease-lusion: cubic-bezier(.35, 0, 0, 1);     /* saída longa e suave */
  --ease-linear: cubic-bezier(.25, .46, .45, .94); /* micro-interação, 0,1 s */
  --ease-ui:     cubic-bezier(.4, 0, .2, 1);     /* padrão de fato: Nvidia ×1028, Google, Microsoft */
  --ease-spacex: cubic-bezier(.19, 1, .22, 1);   /* expo-out, 0,5 s */
  --ease-marca: var(--ease-lando);               /* troque por marca: UMA curva-assinatura */
  --t-micro: .12s; --t-ui: .33s; --t-cena: .75s;
  --mk-dist: 28px;                                /* deslocamento das revelações */
}

/* ---------- revelar na rolagem: CSS nativo quando houver, IntersectionObserver no resto ---------- */
[data-reveal] { opacity: 0; transform: translateY(var(--mk-dist)); transition: opacity var(--t-cena) var(--ease-marca), transform var(--t-cena) var(--ease-marca); transition-delay: var(--mk-delay, 0s); }
[data-reveal="left"]  { transform: translateX(calc(var(--mk-dist) * -1)); }
[data-reveal="right"] { transform: translateX(var(--mk-dist)); }
[data-reveal="zoom"]  { transform: scale(.94); }
[data-reveal="clip"]  { opacity: 1; transform: none; clip-path: inset(0 0 100% 0); transition: clip-path var(--t-cena) var(--ease-marca); }
[data-reveal].mk-in   { opacity: 1; transform: none; }
[data-reveal="clip"].mk-in { clip-path: inset(0 0 0 0); }
html.mk-sem-js [data-reveal] { opacity: 1; transform: none; clip-path: none; } /* sem JS o conteúdo aparece */

/* ---------- texto em cascata (palavras) ---------- */
[data-split] .mk-w { display: inline-block; overflow: hidden; vertical-align: top; }
[data-split] .mk-w > span { display: inline-block; transform: translateY(105%); transition: transform var(--t-cena) var(--ease-marca); transition-delay: calc(var(--i) * 45ms); }
[data-split].mk-in .mk-w > span { transform: none; }

/* ---------- letreiro infinito (padrão Lando Norris) ---------- */
[data-marquee] { overflow: hidden; white-space: nowrap; }
[data-marquee] .mk-track { display: inline-flex; gap: 1em; animation: mk-marq var(--mk-dur, 24s) linear infinite; }
[data-marquee][data-dir="rev"] .mk-track { animation-direction: reverse; }
[data-marquee]:hover .mk-track { animation-play-state: paused; }
@keyframes mk-marq { to { transform: translateX(-50%); } }

/* ---------- cena presa (scrollytelling padrão Apple): JS publica --p de 0 a 1 ---------- */
[data-scene] { position: relative; height: var(--mk-altura, 300vh); }
[data-scene] > .mk-stage { position: sticky; top: 0; height: 100vh; overflow: hidden; }
[data-scene] [data-p-opacity] { opacity: calc(var(--p, 0) * 2 - var(--mk-o0, 0)); }
[data-scene] [data-p-scale] { transform: scale(calc(1 + var(--p, 0) * var(--mk-s, .25))); }
[data-scene] [data-p-x] { transform: translateX(calc((var(--p, 0) - .5) * var(--mk-x, -40%))); }

/* ---------- vidro (Apple 52 regras, Tesla 29) ---------- */
.mk-glass { background: color-mix(in oklab, var(--mk-glass-cor, #fff) 62%, transparent); -webkit-backdrop-filter: blur(18px) saturate(1.6); backdrop-filter: blur(18px) saturate(1.6); border: 1px solid color-mix(in oklab, #fff 40%, transparent); }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) { .mk-glass { background: var(--mk-glass-cor, #fff); } }

/* ---------- botão magnético ---------- */
[data-magnetic] { transition: transform var(--t-ui) var(--ease-tesla); will-change: transform; }

/* ---------- máscara revelada pelo cursor (padrão capacete do Lando Norris) ---------- */
[data-mask] { position: relative; overflow: hidden; --mx: 50%; --my: 50%; --mr: 0px; }
[data-mask] > .mk-por-baixo { position: absolute; inset: 0; -webkit-mask-image: radial-gradient(circle var(--mr) at var(--mx) var(--my), #000 98%, transparent 100%); mask-image: radial-gradient(circle var(--mr) at var(--mx) var(--my), #000 98%, transparent 100%); transition: --mr var(--t-ui); }
@property --mr { syntax: '<length>'; inherits: true; initial-value: 0px; }
[data-mask]:hover { --mr: var(--mk-raio, 140px); }

/* ---------- herói de vídeo (padrão Tesla): vídeo em tela cheia, 2 CTAs ---------- */
.mk-hero { position: relative; min-height: 100svh; display: grid; place-items: center; text-align: center; overflow: hidden; color: #fff; isolation: isolate; }
.mk-hero > video, .mk-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.mk-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(0,0,0,.35), rgba(0,0,0,.05) 40%, rgba(0,0,0,.55)); }
.mk-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.mk-btn { display: inline-flex; align-items: center; justify-content: center; min-width: 164px; height: 44px; padding: 0 22px; border-radius: 6px; font-weight: 600; text-decoration: none; transition: background var(--t-ui) var(--ease-tesla), transform var(--t-micro) var(--ease-linear), box-shadow var(--t-ui) var(--ease-tesla); }
.mk-btn:active { transform: scale(.98); }
.mk-btn.pri { background: var(--mk-cta, #3E6AE1); color: #fff; }
.mk-btn.sec { background: rgba(255,255,255,.88); color: #171A20; }

/* ---------- título editorial (Apple 64/600, Linear 56/510, Lando 75/caixa alta) ---------- */
.mk-display { font-size: clamp(2.4rem, 1.2rem + 4.2vw, 4.7rem); line-height: 1.04; letter-spacing: -0.02em; font-weight: 600; text-wrap: balance; margin: 0; }
.mk-grad { background: linear-gradient(90deg in oklch, var(--mk-g1, #ff6a00), var(--mk-g2, #7b2ff7)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- acessibilidade: obrigatório (2 dos 5 de referência falham nisto) ---------- */
@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-split] .mk-w > span { opacity: 1 !important; transform: none !important; clip-path: none !important; transition: none !important; }
  [data-marquee] .mk-track { animation: none; }
  [data-magnetic] { transform: none !important; }
  [data-scene] { height: auto; } [data-scene] > .mk-stage { position: relative; height: auto; }
}