/* ===== seção "o que oferecemos" (escura) — linhas alternadas, cenas isométricas ===== */
.offer {
  background: #0A1224;
  color: var(--white);
  padding: clamp(80px, 10vw, 140px) 0 clamp(80px, 9vw, 120px);
  margin-top: clamp(64px, 8vw, 120px);
  --o-text-2: #9DB0CC;
  --o-text-3: #6E7F9F;
  --o-line: rgba(255, 255, 255, .08);
}
.offer__eyebrow {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin: 0 0 14px;
}
.offer__title {
  font-size: clamp(34px, 4.6vw, 64px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 14px;
  max-width: 22ch;
  text-wrap: balance;
}
.offer__lead {
  margin: 0;
  color: var(--o-text-2);
  font-size: clamp(16px, 1.4vw, 19px);
  max-width: 52ch;
}

.offer__rows {
  display: grid;
  gap: clamp(72px, 9vw, 140px);
  margin-top: clamp(56px, 7vw, 104px);
}
.offer__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 96px);
  align-items: center;
}
.offer__row:nth-child(even) .offer__scene { order: 2; }

/* cena: cada uma com o próprio ambiente */
.offer__scene {
  position: relative;
  aspect-ratio: 5 / 4;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--o-line);
  background: linear-gradient(135deg, #001A40, rgba(13, 51, 105, .45));
}
.offer__scene svg { display: block; width: 100%; height: 100%; }
.offer__scene--belt  { background: linear-gradient(180deg, #00163A 0%, #0B2D5E 100%); }
.offer__scene--hub   { background: radial-gradient(circle at 50% 46%, rgba(13, 51, 105, .95), #00122C 72%); }
.offer__scene--chart { background: linear-gradient(160deg, #07254A, #001A40 55%, #00112A); }
.offer__scene--spot  { background: radial-gradient(ellipse at 50% 18%, rgba(51, 133, 243, .30), transparent 58%), #001A40; }

/* texto */
.offer__k {
  display: block;
  color: var(--o-text-3);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.offer__name {
  margin: 0 0 14px;
  font-size: clamp(26px, 3vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.offer__desc {
  margin: 0;
  color: var(--o-text-2);
  font-size: clamp(16px, 1.3vw, 18px);
  max-width: 42ch;
}
.offer__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
  color: var(--o-text-2);
  font-size: 15px;
}
.offer__list li { position: relative; padding-left: 16px; }
.offer__list li::before {
  content: "";
  position: absolute;
  left: 0; top: .66em;
  width: 7px; height: 2px;
  background: var(--cyan);
}
.offer__ai {
  margin-top: 22px;
  max-width: 48ch;
  padding: 12px 14px 12px 16px;
  border-left: 2px solid rgba(0, 240, 255, .6);
  background: rgba(0, 240, 255, .05);
  border-radius: 0 10px 10px 0;
  display: grid;
  gap: 3px;
}
.offer__ai-k {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.offer__ai p { margin: 0; color: var(--o-text-2); font-size: 14.5px; }
.offer__ai b { color: var(--white); font-weight: 600; }
.offer__rule {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--o-line);
  color: var(--o-text-3);
  font-size: 15px;
  max-width: 42ch;
}
.offer__rule b { color: var(--o-text-2); font-weight: 600; }

/* entrada: texto sobe; a cena monta uma vez (classe .is-in vem do JS) */
.js .offer__text > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform 1.1s var(--ease-out-expo);
}
.offer__row.is-in .offer__text > * { opacity: 1; transform: none; }
.offer__row.is-in .offer__text > *:nth-child(2) { transition-delay: .06s; }
.offer__row.is-in .offer__text > *:nth-child(3) { transition-delay: .12s; }
.offer__row.is-in .offer__text > *:nth-child(4) { transition-delay: .18s; }
.offer__row.is-in .offer__text > *:nth-child(5) { transition-delay: .24s; }

/* peças da cena (geradas pelo JS) */
.iso-cube { opacity: 0; }
.offer__row.is-in .iso-cube { animation: iso-assemble .9s var(--ease-out-expo) both; animation-delay: var(--d, 0s); }
@keyframes iso-assemble { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
.offer__row.is-in .iso-cand { animation: iso-cand 2.6s ease-in-out both; }
@keyframes iso-cand { 0% { opacity: 0; transform: translateY(-6px); } 25% { opacity: 1; transform: translateY(0); } 62% { opacity: 1; } 85%, 100% { opacity: 0; transform: translateY(-10px); } }
.offer__row.is-in .iso-drop { animation: iso-drop 1.1s var(--ease-out-expo) 2.2s both; }
@keyframes iso-drop { from { opacity: 0; transform: translateY(-70px); } 20% { opacity: 1; } to { opacity: 1; transform: translateY(0); } }
.iso-mv { opacity: 1; }
.iso-belt { animation: iso-belt 2.8s linear infinite; animation-play-state: paused; }
.offer__row.is-in.is-visible .iso-belt { animation-play-state: running; }
@keyframes iso-belt { from { transform: translate(0, 0); } to { transform: translate(33px, 16.5px); } }
.iso-belt .iso-fade-in { animation: iso-fin 2.8s linear infinite; }
.iso-belt .iso-fade-out { animation: iso-fout 2.8s linear infinite; }
@keyframes iso-fin { 0% { opacity: 0; } 35% { opacity: 1; } 100% { opacity: 1; } }
@keyframes iso-fout { 0% { opacity: 1; } 60% { opacity: 1; } 100% { opacity: 0; } }
.iso-breathe { animation: iso-breathe 4s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
@keyframes iso-breathe { 0%, 100% { opacity: .5; transform: scale(1); } 50% { opacity: .9; transform: scale(1.12); } }
.iso-ring { fill: none; stroke: var(--cyan); stroke-width: 1.4; opacity: 0; transform-box: fill-box; transform-origin: center; }
.offer__row.is-in .iso-ring { animation: iso-ring 2.2s ease-out 2.4s infinite; }
@keyframes iso-ring { 0% { opacity: .9; transform: scale(.75); } 100% { opacity: 0; transform: scale(1.55); } }
.iso-tline { transform: scaleX(0); transform-origin: left; transform-box: fill-box; }
.offer__row.is-in .iso-tline { animation: iso-tline .7s var(--ease-out-expo) both; animation-delay: var(--d, 0s); }
@keyframes iso-tline { to { transform: scaleX(1); } }

.iso-ground { fill: none; stroke: rgba(255, 255, 255, .07); stroke-width: 1; }
.iso-lane { fill: none; stroke: rgba(255, 255, 255, .07); stroke-width: 1; }
.iso-dots { fill: rgba(255, 255, 255, .18); }
.iso-plate { fill: rgba(255, 255, 255, .035); stroke: rgba(255, 255, 255, .16); stroke-width: 1; }
.iso-chartline { fill: none; stroke: rgba(255, 255, 255, .10); stroke-width: 1; }
.iso-shadow { fill: rgba(0, 10, 30, .55); filter: url(#iso-soft); }
.iso-ghost { fill: none; stroke: rgba(0, 240, 255, .55); stroke-width: 1.2; stroke-dasharray: 3 3; }
.iso-rail { fill: none; stroke: rgba(255, 255, 255, .2); stroke-width: 1.2; }
.iso-aiglow { fill: rgba(0, 240, 255, .35); filter: url(#iso-soft2); }
.iso-blob { fill: url(#iso-blob); }
.iso-blob2 { fill: rgba(255, 255, 255, .18); }

@media (max-width: 820px) {
  .offer__row { grid-template-columns: 1fr; gap: 24px; }
  .offer__row:nth-child(even) .offer__scene { order: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .offer__text > *, .iso-cube, .iso-mv { opacity: 1 !important; transform: none !important; transition: none !important; animation: none !important; }
  .iso-cand { display: none; }
  .iso-drop { opacity: 1 !important; animation: none !important; }
  .iso-belt, .iso-breathe, .iso-ring, .iso-tline { animation: none !important; }
  .iso-tline { transform: none; }
  .iso-ring { opacity: .6; }
}