:root {
  --bg-main: #03070d;
  --bg-section: #07101c;
  --bg-card: #091321;
  --blue-primary: #1976ff;
  --blue-light: #53a2ff;
  --text-primary: #f4f7fb;
  --text-secondary: #8fa3bd;
  --border: rgba(83, 162, 255, 0.20);
  --metal: #aab7c8;
  --max: 1360px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.os-home-premium {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg-main);
  color: var(--text-primary);
  font-family: "Work Sans", Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
.os-shell { width: min(calc(100% - 56px), var(--max)); margin-inline: auto; }

.os-top {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  background:
    radial-gradient(circle at 50% 0, rgba(47, 128, 255, .16), transparent 44%),
    linear-gradient(180deg, rgba(13, 23, 38, .86), rgba(5, 10, 18, .72));
  border-bottom: 1px solid rgba(130, 178, 245, .22);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .06),
    0 18px 42px rgba(0, 0, 0, .22);
  backdrop-filter: blur(18px) saturate(1.18);
}
.os-top:before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0, rgba(83, 162, 255, .08) 50%, transparent 100%),
    linear-gradient(180deg, rgba(255, 255, 255, .045), transparent 62%);
}
.os-top__row {
  position: relative;
  height: 84px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}
.os-logo img {
  display: block;
  width: 172px;
  height: 64px;
  object-fit: contain;
  object-position: left center;
}
.os-logo { justify-self: start; }
.os-nav { justify-self: center; }
.os-nav ul {
  display: flex;
  align-items: center;
  gap: 34px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.os-nav a {
  position: relative;
  display: block;
  padding: 31px 0 27px;
  color: #d1d8e4;
  font: 700 .82rem "Oswald", sans-serif;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.os-nav a:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 19px;
  height: 2px;
  transform: scaleX(0);
  background: var(--blue-primary);
  transition: transform .2s ease;
}
.os-nav a:hover:after,
.os-nav a.active:after { transform: scaleX(1); }
.os-menu-toggle { display: none; }

.os-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font: 700 .82rem "Oswald", sans-serif;
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, filter .2s ease;
}
.os-btn--primary {
  color: #fff;
  background: linear-gradient(180deg, #2d84ff, #145bd2);
  box-shadow: 0 18px 42px rgba(25, 118, 255, .24);
}
.os-btn--whats,
.os-btn--ghost {
  color: #fff;
  background: rgba(4, 10, 18, .62);
  border-color: rgba(83, 162, 255, .38);
}
.os-btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.os-top__whats { justify-self: end; }

.os-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--blue-light);
  font: 600 .72rem "IBM Plex Mono", monospace;
  letter-spacing: .20em;
  text-transform: uppercase;
}
.os-kicker:before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--blue-primary);
}

.os-hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #02050a;
}
.os-hero__photo {
  position: absolute;
  inset: 0;
  background-image: url("../fundo.png");
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
  filter: saturate(1.05) contrast(1.08);
}
.os-hero__shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 5, 10, .98) 0%, rgba(2, 5, 10, .72) 36%, rgba(2, 5, 10, .18) 64%, rgba(2, 5, 10, .88) 100%),
    linear-gradient(180deg, rgba(2, 5, 10, .28) 0%, rgba(2, 5, 10, .02) 55%, #03070d 100%);
}
.os-hero__content {
  position: relative;
  z-index: 2;
  width: min(calc(100% - 40px), var(--max));
  max-width: var(--max);
  margin-inline: auto;
  padding: 156px 0 78px;
  transform: translateX(-34px);
}
.os-hero h1 {
  margin: 0 0 32px;
  max-width: 720px;
  font: 700 clamp(4.15rem, 5.45vw, 6.65rem)/1.02 "Oswald", sans-serif;
  letter-spacing: .025em;
  text-transform: uppercase;
  text-shadow: 0 30px 82px rgba(0, 0, 0, .76);
}
.os-hero h1 span {
  display: block;
  color: var(--blue-primary);
  margin-top: 12px;
}
.os-hero p {
  max-width: 640px;
  margin: 0;
  color: #d4dbe7;
  font-size: 1.03rem;
  line-height: 1.85;
  text-shadow: 0 16px 36px rgba(0, 0, 0, .72);
}
.os-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.os-hero__rail {
  position: absolute;
  z-index: 3;
  right: max(28px, calc((100vw - var(--max)) / 2 + 28px));
  top: 172px;
  width: 170px;
  padding: 10px;
  border: 1px solid rgba(83, 162, 255, .28);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(4, 10, 18, .88), rgba(3, 7, 13, .72));
  box-shadow: 0 24px 70px rgba(0, 0, 0, .48), inset 0 0 36px rgba(25, 118, 255, .08);
}
.os-hero__rail span {
  position: relative;
  display: block;
  padding: 11px 12px 11px 34px;
  border-bottom: 1px solid rgba(83, 162, 255, .14);
  color: #f1f6ff;
  font: 700 .78rem "Oswald", sans-serif;
  letter-spacing: .055em;
  text-transform: uppercase;
}
.os-hero__rail span:last-child { border-bottom: 0; }
.os-hero__rail span:before {
  content: "";
  position: absolute;
  left: 10px;
  top: 50%;
  width: 14px;
  height: 10px;
  border: 1px solid var(--blue-light);
  border-radius: 4px 4px 2px 2px;
  transform: translateY(-50%);
  box-shadow: 0 0 12px rgba(83, 162, 255, .38);
}

.os-differentials {
  position: relative;
  z-index: 5;
  margin-top: -18px;
  padding: 0 0 84px;
}
.os-differentials__image {
  display: block;
  width: min(100%, 1120px);
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  filter: none;
}
.os-differentials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.os-service--dif-procedencia:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../auto peças.png");
}
.os-service--dif-compatibilidade:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../Motor.png");
}
.os-service--dif-atendimento:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../freio.png");
}

.os-line-icon {
  position: relative;
  width: 46px;
  height: 46px;
  display: inline-grid;
  place-items: center;
  border: 1px solid rgba(83, 162, 255, .46);
  border-radius: 8px;
  background: rgba(15, 39, 76, .38);
  box-shadow: inset 0 0 22px rgba(25, 118, 255, .16), 0 0 24px rgba(25, 118, 255, .16);
}
.os-line-icon:before,
.os-line-icon:after {
  content: "";
  position: absolute;
  border-color: var(--blue-light);
  opacity: .92;
}
.os-line-icon--lift:before { width: 22px; height: 22px; border-left: 2px solid var(--blue-light); border-bottom: 2px solid var(--blue-light); transform: rotate(-45deg); }
.os-line-icon--box:before { width: 22px; height: 22px; border: 2px solid var(--blue-light); transform: rotate(45deg) skew(-8deg, -8deg); }
.os-line-icon--scan:before { width: 24px; height: 16px; border: 2px solid var(--blue-light); border-radius: 3px; }
.os-line-icon--scan:after { width: 15px; height: 2px; background: var(--blue-light); }
.os-line-icon--engine:before { width: 25px; height: 18px; border: 2px solid var(--blue-light); border-radius: 4px; }
.os-line-icon--suspension:before { width: 25px; height: 25px; border-left: 2px solid var(--blue-light); border-right: 2px solid var(--blue-light); transform: skewX(-18deg); }
.os-line-icon--brake:before { width: 24px; height: 24px; border: 2px solid var(--blue-light); border-radius: 50%; }
.os-line-icon--steering:before { width: 26px; height: 26px; border: 2px solid var(--blue-light); border-radius: 50%; }
.os-line-icon--scanner:before { width: 24px; height: 18px; border: 2px solid var(--blue-light); border-radius: 4px; }
.os-line-icon--parts:before { width: 23px; height: 23px; border: 2px solid var(--blue-light); border-radius: 5px; transform: rotate(45deg); }
.os-line-icon--shield:before { width: 24px; height: 29px; border: 2px solid var(--blue-light); border-radius: 12px 12px 16px 16px; }
.os-line-icon--team:before { width: 25px; height: 15px; border: 2px solid var(--blue-light); border-radius: 14px 14px 5px 5px; }
.os-line-icon--car:before { width: 28px; height: 16px; border: 2px solid var(--blue-light); border-radius: 10px 10px 4px 4px; }
.os-line-icon--award:before { width: 24px; height: 24px; border: 2px solid var(--blue-light); border-radius: 50%; }

.os-engine-scroll {
  position: relative;
  height: 310vh;
  background: #02050b;
}
.os-engine-scroll__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 720px;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 52%, rgba(47,128,255,.18), transparent 34%),
    radial-gradient(circle at 72% 38%, rgba(63,156,255,.10), transparent 28%),
    linear-gradient(135deg, #02050b 0%, #07111e 48%, #020408 100%);
}
.os-engine-scroll__sticky:before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(2,5,10,.02) 0%, rgba(2,5,10,.04) 44%, rgba(2,5,10,.94) 60%, rgba(2,5,10,.99) 100%),
    linear-gradient(180deg, rgba(2,5,10,.48) 0%, transparent 22%, rgba(2,5,10,.88) 100%),
    repeating-linear-gradient(135deg, rgba(255,255,255,.014) 0 1px, transparent 1px 11px);
}
.os-engine-scroll__canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
}
.os-engine-scroll__content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 480px);
  align-items: center;
  pointer-events: none;
}
.os-engine-scroll__copy {
  grid-column: 2;
  padding-left: 24px;
  margin-left: 64px;
  border-left: 2px solid rgba(47,128,255,.95);
  text-shadow: 0 18px 42px rgba(0,0,0,.72);
  background: linear-gradient(90deg, rgba(2,5,10,.92), rgba(2,5,10,.36));
}
.os-engine-scroll__copy h2 {
  margin: 14px 0 18px;
  max-width: 420px;
  font: 700 clamp(2.45rem, 3.7vw, 4.4rem)/.96 "Oswald", sans-serif;
  text-transform: uppercase;
  color: #f8fbff;
}
.os-engine-scroll__copy p {
  margin: 0;
  max-width: 390px;
  color: #c8d2df;
  font-size: 1rem;
  line-height: 1.65;
}
.os-engine-scroll__copy ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  color: #d6deea;
  font-size: .94rem;
}
.os-engine-scroll__copy li {
  position: relative;
  padding-left: 20px;
}
.os-engine-scroll__copy li:before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 6px;
  height: 6px;
  background: #2f80ff;
  box-shadow: 0 0 14px rgba(47,128,255,.8);
}
.os-engine-scroll__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 4;
  height: 3px;
  background: rgba(255,255,255,.08);
}
.os-engine-scroll__progress i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #2f80ff, #7bb7ff);
  box-shadow: 0 0 18px rgba(47,128,255,.85);
}

.os-services {
  padding: 78px 0 70px;
  background: linear-gradient(180deg, #03070d, #06101b 48%, #03070d);
}
.os-section-head {
  text-align: center;
  margin-bottom: 34px;
}
.os-section-head .os-kicker { justify-content: center; }
.os-section-head h2 {
  margin: 12px 0 0;
  font: 700 clamp(2.7rem, 5vw, 4.7rem)/.98 "Oswald", sans-serif;
  text-transform: uppercase;
  letter-spacing: -.02em;
}
.os-services__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.os-service {
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding: 18px 18px 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.os-service:before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: saturate(1.05) contrast(1.08);
}
.os-service--motor:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../Motor.png");
}
.os-service--suspensao:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../amortecedor.png");
}
.os-service--freios:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../freio.png");
}
.os-service--direcao:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../direção.png");
}
.os-service--filtros:before {
  background-image: linear-gradient(180deg, rgba(2, 5, 10, .02) 0%, rgba(2, 5, 10, .18) 42%, rgba(2, 5, 10, .88) 74%, rgba(2, 5, 10, .98) 100%), url("../auto peças.png");
}
.os-service:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(25, 118, 255, .08), transparent 48%);
  pointer-events: none;
}
.os-service:hover {
  transform: translateY(-6px);
  border-color: rgba(83, 162, 255, .46);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .34);
}
.os-service__icon {
  display: none;
}
.os-service h3,
.os-service p { position: relative; z-index: 1; }
.os-service h3 {
  margin: 0 0 8px;
  font: 700 1.25rem "Oswald", sans-serif;
  text-transform: uppercase;
}
.os-service p {
  margin: 0;
  color: #a8b5c6;
  font-size: .82rem;
  line-height: 1.55;
}

.os-results {
  padding: 16px 0 48px;
  background: #03070d;
}
.os-results__bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(2, 7, 14, .88), rgba(4, 12, 22, .78), rgba(2, 7, 14, .9)),
    url("../fundo confiança.png") center / cover no-repeat;
  box-shadow: 0 22px 70px rgba(0, 0, 0, .32);
  overflow: hidden;
}
.os-results article {
  min-height: 120px;
  display: grid;
  grid-template-columns: 52px 1fr;
  align-content: center;
  column-gap: 20px;
  padding: 26px 32px;
  border-right: 1px solid rgba(83, 162, 255, .14);
}
.os-results article:last-child { border-right: 0; }
.os-results strong {
  display: block;
  font: 700 2.05rem "Oswald", sans-serif;
  text-transform: uppercase;
}
.os-results p {
  grid-column: 2;
  margin: 2px 0 0;
  color: var(--text-secondary);
  font-size: .82rem;
}

.os-result-icon {
  width: 54px;
  height: 54px;
  object-fit: contain;
  align-self: center;
  filter: drop-shadow(0 0 16px rgba(47, 124, 255, .38));
}

.os-cta {
  padding: 0 0 36px;
  background: #03070d;
}
.os-cta__box {
  min-height: 142px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 36px 58px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(7, 16, 28, .98), rgba(8, 23, 47, .84)),
    url("../contagiro.png") center / cover;
  box-shadow: inset 0 0 70px rgba(25, 118, 255, .12);
}
.os-cta h2 {
  margin: 0 0 8px;
  font: 700 clamp(2rem, 3vw, 3rem)/1 "Oswald", sans-serif;
  text-transform: uppercase;
}
.os-cta p { margin: 0; color: var(--text-secondary); }

.os-footer {
  padding: 38px 0 22px;
  background:
    linear-gradient(180deg, rgba(2, 5, 10, .88), rgba(2, 5, 10, .96)),
    url("../rodapé.png") center / cover no-repeat,
    #02050a;
}
.os-footer .os-shell {
  padding: 30px 48px 24px;
  border: 0;
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
}
.os-footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 54px;
  padding-left: clamp(220px, 24vw, 360px);
}
.os-footer__brand img {
  width: 185px;
  height: 70px;
  object-fit: contain;
  object-position: left;
}
.os-footer h4 {
  margin: 0 0 14px;
  font: 700 .9rem "Oswald", sans-serif;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.os-footer p,
.os-footer li,
.os-footer a {
  color: #8999ad;
  font-size: .84rem;
  line-height: 1.7;
  text-shadow: 0 10px 24px rgba(0, 0, 0, .72);
}
.os-footer ul { list-style: none; margin: 0; padding: 0; }
.os-socials { display: flex; gap: 10px; margin-top: 18px; }
.os-socials a {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(83, 162, 255, .22);
  border-radius: 50%;
  color: #8fb8ff;
  font: 700 .62rem "IBM Plex Mono", monospace;
}
.os-footer__whats {
  display: inline-block;
  margin-top: 16px;
  padding: 12px 16px;
  border: 1px solid rgba(83, 162, 255, .18);
  border-radius: 8px;
  background: rgba(2, 5, 10, .28);
}
.os-footer__bottom {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .07);
  color: #677489;
  font-size: .74rem;
  text-align: center;
}

@media (max-width: 1180px) {
  .os-top__row { grid-template-columns: 190px 1fr 150px; }
  .os-nav ul { gap: 22px; }
  .os-services__grid { grid-template-columns: repeat(3, 1fr); }
  .os-results__bar { grid-template-columns: repeat(2, 1fr); }
  .os-results article:nth-child(2) { border-right: 0; }
  .os-results article:nth-child(-n+2) { border-bottom: 1px solid rgba(83, 162, 255, .14); }
}

@media (max-width: 820px) {
  .os-shell { width: min(calc(100% - 32px), var(--max)); }
  .os-top__row {
    height: 76px;
    grid-template-columns: 1fr auto auto;
  }
  .os-logo img { width: 142px; height: 56px; }
  .os-menu-toggle {
    display: inline-grid;
    gap: 5px;
    width: 44px;
    height: 44px;
    place-content: center;
    border: 1px solid rgba(83, 162, 255, .26);
    border-radius: 8px;
    background: rgba(6, 13, 23, .72);
  }
  .os-menu-toggle span {
    width: 19px;
    height: 2px;
    background: #d9e4f2;
  }
  .os-nav {
    position: fixed;
    top: 76px;
    left: 16px;
    right: 16px;
    display: none;
    justify-self: stretch;
    padding: 14px;
    border: 1px solid rgba(83, 162, 255, .18);
    border-radius: 10px;
    background: rgba(4, 9, 16, .97);
  }
  body.is-menu-open .os-nav { display: block; }
  .os-nav ul { display: grid; gap: 0; }
  .os-nav a { padding: 14px 8px; }
  .os-nav a:after { bottom: 7px; }
  .os-top__whats { min-height: 42px; padding: 0 15px; }
  .os-hero { min-height: 820px; }
  .os-hero__photo { background-position: 58% center; }
  .os-hero__shade {
    background:
      linear-gradient(90deg, rgba(2, 5, 10, .94) 0%, rgba(2, 5, 10, .76) 60%, rgba(2, 5, 10, .82) 100%),
      linear-gradient(180deg, rgba(2, 5, 10, .15) 45%, #03070d 100%);
  }
  .os-hero__rail { display: none; }
  .os-kicker {
    max-width: 100%;
    flex-wrap: wrap;
    row-gap: 8px;
    font-size: .66rem;
    letter-spacing: .14em;
  }
  .os-hero h1 {
    max-width: 100%;
    font-size: clamp(3.15rem, 13.2vw, 4.7rem);
    line-height: .9;
    letter-spacing: -.055em;
  }
  .os-differentials { margin-top: -8px; padding-bottom: 56px; }
  .os-differentials__grid { grid-template-columns: 1fr 1fr; }
  .os-engine-scroll { height: 280vh; }
  .os-engine-scroll__sticky { min-height: 760px; }
  .os-engine-scroll__content {
    grid-template-columns: 1fr;
    align-items: end;
    padding-bottom: 54px;
  }
  .os-engine-scroll__copy {
    grid-column: 1;
    width: min(620px, 100%);
    background: linear-gradient(90deg, rgba(3,7,13,.78), rgba(3,7,13,.18));
  }
  .os-services__grid { grid-template-columns: 1fr 1fr; }
  .os-results__bar { grid-template-columns: 1fr; }
  .os-results article {
    border-right: 0;
    border-bottom: 1px solid rgba(83, 162, 255, .14);
  }
  .os-results article:last-child { border-bottom: 0; }
  .os-cta__box {
    align-items: flex-start;
    flex-direction: column;
    padding: 28px;
  }
  .os-footer .os-shell { padding: 28px 24px; }
  .os-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; padding-left: 0; }
}

@media (max-width: 520px) {
  .os-shell {
    width: 100%;
    padding-inline: 16px;
  }
  .os-top__whats { display: none; }
  .os-hero { min-height: 760px; }
  .os-hero__content {
    width: 100%;
    padding-top: 124px;
    padding-right: 8px;
    transform: none;
  }
  .os-hero h1 {
    font-size: clamp(3rem, 12.6vw, 3.9rem);
    letter-spacing: -.06em;
  }
  .os-hero p {
    max-width: 31ch;
    font-size: .94rem;
    line-height: 1.68;
  }
  .os-hero__actions .os-btn { width: 100%; }
  .os-differentials__image { width: 100%; }
  .os-differentials__grid { grid-template-columns: 1fr; }
  .os-engine-scroll { height: 250vh; }
  .os-engine-scroll__sticky { min-height: 700px; }
  .os-engine-scroll__copy {
    padding-left: 16px;
    border-left-width: 1px;
  }
  .os-engine-scroll__copy h2 { font-size: 2.45rem; }
  .os-engine-scroll__copy p { font-size: .92rem; }
  .os-engine-scroll__copy ul {
    gap: 7px;
    font-size: .82rem;
  }
  .os-services__grid { grid-template-columns: 1fr; }
  .os-service { min-height: 250px; }
  .os-results article { padding: 24px; }
  .os-footer__grid { grid-template-columns: 1fr; padding-left: 0; }
}