/* ============================================================
   Biti's concept — scoped under [data-site="bitis"]
   Fingerprint: minimal-top-nav · movement-poster · italic-sports-grotesk ·
   rhythm-grid-dossier · poster-dossier-guidance · real-movement-photography ·
   hard-rule-numeral · restrained-sport
   Palette: paper #F4F1E8 · ink #171815 · red #D93824
   ============================================================ */

[data-site="bitis"] {
  --paper: #f4f1e8;
  --ink: #171815;
  --accent: #d93824;
  --accent-deep: #bd2f1e;
  --on: #ffffff;
  --line: #c5c4ba;
  --line-strong: #171815;
  --focus: #1b50a0;
  --container: 1280px;

  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 Arial, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
[data-site="bitis"] *,
[data-site="bitis"] *::before,
[data-site="bitis"] *::after { box-sizing: border-box; }
[data-site="bitis"] h1,
[data-site="bitis"] h2,
[data-site="bitis"] h3,
[data-site="bitis"] p,
[data-site="bitis"] figure,
[data-site="bitis"] dl,
[data-site="bitis"] dd { margin: 0; }
[data-site="bitis"] ul,
[data-site="bitis"] ol { margin: 0; padding: 0; list-style: none; }
[data-site="bitis"] a { color: inherit; text-decoration: none; }
[data-site="bitis"] img { display: block; max-width: 100%; height: auto; }
[data-site="bitis"] [hidden] { display: none !important; }
[data-site="bitis"] :focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; }

[data-site="bitis"] .wrap { width: min(var(--container), calc(100% - 96px)); margin-inline: auto; }

[data-site="bitis"] .skip {
  position: fixed; left: 18px; top: -100px; z-index: 100;
  background: var(--ink); color: var(--paper); padding: 12px 18px;
}
[data-site="bitis"] .skip:focus { top: 12px; }

[data-site="bitis"] .notice {
  font-size: 11px; padding: 8px 20px; background: var(--ink); color: var(--paper);
  text-align: center; line-height: 1.65;
}
[data-site="bitis"] .notice a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- header ---------- */
[data-site="bitis"] .head {
  display: flex; justify-content: space-between; align-items: center;
  gap: 25px; min-height: 88px;
}
[data-site="bitis"] .wordmark { font-size: 35px; font-weight: 800; font-style: italic; letter-spacing: -0.07em; line-height: 1.2; }
[data-site="bitis"] .nav { display: flex; gap: 28px; align-items: center; font-size: 14px; }
[data-site="bitis"] .nav a { padding: 12px 0; }
[data-site="bitis"] .nav a:hover { text-decoration: underline; text-underline-offset: 6px; }
[data-site="bitis"] .mobile-menu { display: none; position: relative; font-size: 14px; }
[data-site="bitis"] .mobile-menu summary { min-height: 44px; display: flex; align-items: center; cursor: pointer; }
[data-site="bitis"] .mobile-menu[open] nav {
  position: absolute; top: 44px; right: 0; min-width: 225px; z-index: 30;
  background: var(--paper); color: var(--ink); padding: 20px;
  border: 1px solid var(--line); box-shadow: 0 15px 40px #0002;
}
[data-site="bitis"] .mobile-menu nav a { display: block; padding: 10px 0; }

/* ---------- shared ---------- */
[data-site="bitis"] .eyebrow { font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; font-weight: 700; line-height: 1.7; }
[data-site="bitis"] .fine { font-size: 12px; line-height: 1.65; }
[data-site="bitis"] .button {
  display: inline-flex; align-items: center; justify-content: space-between; gap: 25px;
  min-height: 50px; padding: 14px 22px; background: var(--ink); color: var(--on);
  border: 1px solid transparent; font-size: 14px; font-weight: 700; max-width: 100%;
  transition: filter 130ms ease;
}
[data-site="bitis"] .button:hover { filter: brightness(0.9); }
[data-site="bitis"] .link {
  display: inline-flex; align-items: center; gap: 14px; padding: 11px 0;
  border-bottom: 1px solid currentColor; font-size: 14px; font-weight: 600;
}
[data-site="bitis"] .link:hover { color: var(--accent-deep); }
[data-site="bitis"] .section { padding-block: 86px; }
[data-site="bitis"] .section-head {
  display: flex; justify-content: space-between; align-items: end;
  gap: 35px; margin-bottom: 38px;
}
[data-site="bitis"] .section-head h2 {
  font-size: clamp(36px, 4.6vw, 62px); font-weight: 800; line-height: 1.07;
  letter-spacing: -0.055em; margin-top: 18px;
}
[data-site="bitis"] .section-head > p { max-width: 350px; font-size: 15px; }
[data-site="bitis"] h2 em { font-style: italic; font-weight: 800; }

/* ---------- poster ---------- */
[data-site="bitis"] .move-poster {
  display: grid; grid-template-columns: 1.02fr 1fr;
  border-top: 1px solid var(--line-strong);
}
[data-site="bitis"] .move-copy { padding: 34px 30px 0 0; min-width: 0; }
[data-site="bitis"] h1 {
  font-size: clamp(56px, 6.6vw, 96px); line-height: 0.98;
  letter-spacing: -0.065em; font-weight: 900; margin: 26px 0;
}
[data-site="bitis"] h1 > span { font-size: 0.72em; letter-spacing: -0.065em; }
[data-site="bitis"] h1 em { font-style: italic; color: var(--accent-deep); font-weight: 900; }
[data-site="bitis"] .move-copy .lede { font-size: 15px; max-width: 400px; margin-top: 22px; }
[data-site="bitis"] .move-copy .button { margin-top: 25px; }
[data-site="bitis"] .poster-caption {
  font-size: 9px; letter-spacing: 0.16em; display: flex; justify-content: space-between; gap: 20px;
  border-top: 1px solid var(--line-strong); margin-top: 32px; padding-block: 17px;
}
[data-site="bitis"] .poster-shot {
  position: relative; min-width: 0; background: var(--ink);
  display: flex; flex-direction: column;
}
[data-site="bitis"] .poster-shot img {
  width: 100%; height: 100%; min-height: 420px; object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}
[data-site="bitis"] .poster-shot::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(23, 24, 21, 0) 70%, rgba(23, 24, 21, 0.45) 100%);
}
[data-site="bitis"] .poster-shot figcaption {
  position: relative; z-index: 2;
  font-size: 10px; line-height: 1.6; letter-spacing: 0.05em; color: #f4f1e8;
  background: var(--ink); padding: 11px 16px;
}
[data-site="bitis"] .poster-shot figcaption::before {
  content: ""; display: block; width: 42px; height: 4px; background: var(--accent); margin-bottom: 9px;
}

/* ---------- rhythms ---------- */
[data-site="bitis"] .rhythm-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border-top: 1px solid var(--line-strong);
}
[data-site="bitis"] .rhythm {
  position: relative; padding: 0 20px 28px 0;
  border-right: 1px solid var(--line); min-width: 0;
}
[data-site="bitis"] .rhythm:last-child { border-right: 0; }
[data-site="bitis"] .rhythm figure { position: relative; display: flex; flex-direction: column; margin: 0 0 22px; background: #ddd9cc; }
[data-site="bitis"] .rhythm figure img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  filter: grayscale(0.35) contrast(1.02);
  transition: transform 320ms cubic-bezier(0.22, 0.68, 0.24, 1), filter 320ms ease;
}
[data-site="bitis"] .rhythm:hover figure img { transform: scale(1.04); filter: grayscale(0); }
[data-site="bitis"] .rhythm figcaption {
  font-size: 10px; letter-spacing: 0.05em; line-height: 1.5;
  color: #f4f1e8; background: var(--ink);
  padding: 9px 11px;
}
[data-site="bitis"] .rhythm figcaption a,
[data-site="bitis"] .poster-shot figcaption a {
  color: inherit; text-decoration: underline; text-underline-offset: 2px;
}
[data-site="bitis"] .rhythm-no {
  display: block; font-size: 12px; letter-spacing: 0.18em; font-weight: 700;
  color: var(--accent-deep); margin-bottom: 8px;
}
[data-site="bitis"] .rhythm h3 {
  font-size: 27px; line-height: 1.06; font-weight: 800; letter-spacing: -0.045em;
  margin-bottom: 10px;
}
[data-site="bitis"] .rhythm > p { font-size: 14px; max-width: 30rem; }
[data-site="bitis"] .rhythm .link { margin-top: 14px; font-size: 13px; }

/* ---------- brands ---------- */
[data-site="bitis"] .brands { border-top: 1px solid var(--line-strong); }
[data-site="bitis"] .brands a {
  display: grid; grid-template-columns: minmax(12rem, 1fr) minmax(0, 1.4fr) 2rem;
  align-items: baseline; gap: 1rem 1.6rem;
  padding: 22px 12px; border-bottom: 1px solid var(--line);
  transition: background 150ms ease, padding-left 150ms ease;
}
[data-site="bitis"] .brands a:hover { background: #e8e5d9; padding-left: 22px; }
[data-site="bitis"] .brands strong { font-size: 24px; font-weight: 800; letter-spacing: -0.04em; }
[data-site="bitis"] .brands span { font-size: 14px; color: #55554c; }
[data-site="bitis"] .brands b { font-weight: 400; font-size: 20px; text-align: right; color: var(--accent-deep); }

/* ---------- dossier ---------- */
[data-site="bitis"] .product-dossier { background: #e5e2d8; padding-block: 75px; }
[data-site="bitis"] .dossier-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 85px; align-items: center; }
[data-site="bitis"] .dossier-grid h2 {
  font-size: clamp(48px, 6vw, 82px); font-weight: 900; line-height: 0.98;
  letter-spacing: -0.06em; margin-top: 25px;
}
[data-site="bitis"] .dossier-grid .model { font-family: ui-monospace, monospace; font-size: 13px; letter-spacing: 0.14em; margin-block: 22px; }
[data-site="bitis"] .dossier-grid p:last-of-type { font-size: 14px; max-width: 390px; }
[data-site="bitis"] .dossier-grid .button { margin-top: 26px; font-size: 12px; }
[data-site="bitis"] .product-facts { border-top: 1px solid var(--line-strong); }
[data-site="bitis"] .product-facts > div {
  display: grid; grid-template-columns: 1fr 1fr; gap: 22px;
  padding: 25px 0; border-bottom: 1px solid var(--line);
}
[data-site="bitis"] .product-facts dt { font-size: 12px; }
[data-site="bitis"] .product-facts dd { font-size: 17px; font-weight: 600; text-align: right; line-height: 1.5; }

/* ---------- close ---------- */
[data-site="bitis"] .move-close { display: grid; grid-template-columns: 1fr 1fr; gap: 85px; }
[data-site="bitis"] .move-close h2 { font-size: clamp(36px, 4.4vw, 58px); font-weight: 800; line-height: 1.07; letter-spacing: -0.055em; margin-top: 25px; }
[data-site="bitis"] .disclosures details { border-bottom: 1px solid var(--line); padding: 22px 0; }
[data-site="bitis"] .disclosures details:first-child { border-top: 1px solid var(--line); }
[data-site="bitis"] .disclosures summary {
  display: flex; align-items: center; gap: 15px; list-style: none; cursor: pointer;
  font-size: 18px; line-height: 1.4;
}
[data-site="bitis"] .disclosures summary::-webkit-details-marker { display: none; }
[data-site="bitis"] .disclosures summary b { font-weight: 400; margin-left: auto; transition: transform 150ms ease; }
[data-site="bitis"] .disclosures details[open] summary b { transform: rotate(45deg); }
[data-site="bitis"] .disclosures p { font-size: 15px; margin: 18px 0 0; }
[data-site="bitis"] .disclosures .link { margin: 18px 0 0; }

/* ---------- footer ---------- */
[data-site="bitis"] .foot {
  display: flex; justify-content: space-between; align-items: start; gap: 35px;
  border-top: 1px solid var(--line); padding-block: 32px;
}
[data-site="bitis"] .foot .fine { max-width: 640px; margin-top: 12px; }
[data-site="bitis"] .foot-links { display: flex; gap: 22px; flex-wrap: wrap; }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  [data-site="bitis"] .rhythm-grid { grid-template-columns: repeat(2, 1fr); }
  [data-site="bitis"] .rhythm:nth-child(2n) { border-right: 0; }
  [data-site="bitis"] .rhythm:nth-child(-n+2) { border-bottom: 1px solid var(--line); padding-bottom: 28px; }
  [data-site="bitis"] .dossier-grid,
  [data-site="bitis"] .move-close { gap: 44px; }
}
@media (max-width: 900px) {
  [data-site="bitis"] .wrap { width: calc(100% - 48px); }
  [data-site="bitis"] .nav { display: none; }
  [data-site="bitis"] .mobile-menu { display: block; }
  [data-site="bitis"] .head { min-height: 72px; }
  [data-site="bitis"] .section { padding-block: 65px; }
  [data-site="bitis"] .move-poster { grid-template-columns: 1fr; }
  [data-site="bitis"] .move-copy { padding-right: 0; }
  [data-site="bitis"] .poster-shot img { min-height: 340px; }
  [data-site="bitis"] .dossier-grid,
  [data-site="bitis"] .move-close { grid-template-columns: 1fr; gap: 37px; }
}
@media (max-width: 540px) {
  [data-site="bitis"] .wrap { width: calc(100% - 40px); }
  [data-site="bitis"] .section { padding-block: 50px; }
  [data-site="bitis"] .section-head,
  [data-site="bitis"] .foot { flex-direction: column; align-items: start; gap: 22px; }
  [data-site="bitis"] .notice { padding: 7px 12px; font-size: 10px; }
  [data-site="bitis"] .rhythm-grid { grid-template-columns: 1fr; }
  [data-site="bitis"] .rhythm { border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 26px; }
  [data-site="bitis"] .rhythm:last-child { border-bottom: 0; }
  [data-site="bitis"] .brands a { grid-template-columns: 1fr 2rem; }
  [data-site="bitis"] .brands span { grid-column: 1 / -1; }
  [data-site="bitis"] .product-facts dd { font-size: 15px; }
  [data-site="bitis"] h1 { font-size: clamp(60px, 15vw, 84px); }
}
@media (prefers-reduced-motion: reduce) {
  [data-site="bitis"] *,
  [data-site="bitis"] *::before,
  [data-site="bitis"] *::after {
    animation: none !important; transition: none !important; scroll-behavior: auto !important;
  }
}

/* One explanatory scroll sequence; static content remains fully readable. */
@keyframes motion-bitis { from { opacity: 1; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) and (animation-range: entry 0% entry 100%) {
    [data-site="bitis"] #nhip-buoc { view-timeline-name: --motion-bitis; view-timeline-axis: block; }
    [data-site="bitis"] .rhythm-grid > li { animation: motion-bitis 1s linear both; animation-timeline: --motion-bitis; animation-range: entry 10% entry 95%; }
  }
}
@media (prefers-reduced-motion: reduce) { [data-site="bitis"] .rhythm-grid > li { animation: none; transform: none; opacity: 1; } }

@media (prefers-reduced-motion: no-preference) {
  [data-site="bitis"] .button { transition: background-color 150ms ease, transform 120ms ease; }
  [data-site="bitis"] .button:active { transform: translateY(1px); }
}