/* RIG car3d: scroll-driven 3D car breakdown. Self-contained styles, no site deps.
   Sizes are rem-relative so the W7 type-scale lane can raise the ladder globally. */

.c3d { position: relative; background: var(--c3d-bg, #08070a); color: var(--c3d-ink, #f5f1e6); }
.c3d * { box-sizing: border-box; }

.c3d__title { position: absolute; z-index: 2; top: clamp(1.5rem, 7vh, 4.5rem); left: clamp(1.25rem, 5vw, 4rem); max-width: 34rem; }
.c3d__eyebrow { margin: 0 0 1rem; font-size: .95rem; letter-spacing: .22em; text-transform: uppercase; color: var(--c3d-accent, #d9b64a); }
.c3d__title h2 { margin: 0; font-size: clamp(2.2rem, 4.3vw, 3.9rem); line-height: 1.03; letter-spacing: -.02em; font-weight: 600; text-wrap: balance; }
.c3d__title h2 em { font-style: normal; color: var(--c3d-accent, #d9b64a); }

/* scroll track: the stage sticks while the track scrolls */
.c3d__track { position: relative; height: var(--c3d-track, 340vh); }
.c3d__stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden;
  background:
    radial-gradient(42% 30% at 62% 44%, rgba(238,190,74,.16) 0%, rgba(238,190,74,0) 70%),
    radial-gradient(130% 95% at 50% 26%, var(--c3d-glow, #2f230d) 0%, var(--c3d-bg, #0a0807) 52%, #060505 100%); }
.c3d__stage::after { content: ''; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 14vw rgba(0,0,0,.42); }
.c3d__gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.c3d__lead { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.c3d__lead line { stroke: var(--c3d-accent, #d9b64a); stroke-width: 1.25; opacity: .7; }
.c3d__pin { position: absolute; width: 10px; height: 10px; margin: -5px 0 0 -5px; border-radius: 50%; background: var(--c3d-accent, #d9b64a); box-shadow: 0 0 0 4px rgba(217,182,74,.16); pointer-events: none; opacity: 0; transition: opacity .35s; }
.c3d[data-tour] .c3d__pin { opacity: 1; }

.c3d__card { position: absolute; z-index: 2; left: clamp(1.25rem, 5vw, 4rem); bottom: clamp(1.9rem, 8.5vh, 5.2rem); width: min(34rem, calc(100% - 2.5rem)); padding: 1.35rem 1.5rem 1.45rem; border: 1px solid rgba(245,241,230,.16); border-left: 3px solid var(--c3d-accent, #d9b64a); background: rgba(8,7,10,.78); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); opacity: 0; transform: translateY(10px); transition: opacity .4s, transform .4s; }
.c3d[data-tour] .c3d__card, .c3d[data-idle] .c3d__card { opacity: 1; transform: none; }
.c3d__num { display: block; font-size: .9rem; letter-spacing: .2em; color: var(--c3d-accent, #d9b64a); font-variant-numeric: tabular-nums; }
.c3d__label { margin: .4rem 0 .12rem; font-size: clamp(1.5rem, 2.6vw, 2.15rem); line-height: 1.1; font-weight: 600; letter-spacing: -.01em; color: var(--c3d-ink, #f5f1e6); }
.c3d__layer { margin: 0 0 .6rem; font-size: 1rem; letter-spacing: .12em; text-transform: uppercase; color: #b4ada0; }
.c3d__text { margin: 0; font-size: 1.34rem; line-height: 1.5; color: #ded8cc; max-width: 46ch; }

.c3d__rail { position: absolute; z-index: 2; right: clamp(1.25rem, 3vw, 3rem); top: 50%; transform: translateY(-50%); margin: 0; padding: 0; list-style: none; display: grid; gap: .55rem; text-align: left; }
.c3d__rail li { display: flex; align-items: baseline; gap: .6rem; font-size: 1.15rem; color: #938d81; letter-spacing: .03em; transition: color .3s, opacity .3s; opacity: .78; }
.c3d__rail li i { font-style: normal; font-variant-numeric: tabular-nums; font-size: .78rem; color: #575249; }
.c3d__rail li.on { color: var(--c3d-ink, #f5f1e6); opacity: 1; font-weight: 600; }
.c3d__rail li.on i { color: var(--c3d-accent, #d9b64a); }
.c3d__rail li.done { opacity: .4; }

.c3d__bar { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: rgba(245,241,230,.08); }
.c3d__bar i { display: block; height: 100%; width: 0; background: var(--c3d-accent, #d9b64a); }

/* reduced motion / no-WebGL fallback: static exploded render + the full part list */
.c3d__list { padding: clamp(1rem, 3vw, 2rem) clamp(1.25rem, 5vw, 4rem) clamp(2.5rem, 6vw, 4rem); }
.c3d__list[hidden] { display: none; }
.c3d__list h3 { margin: 0 0 1.2rem; font-size: .8rem; letter-spacing: .2em; text-transform: uppercase; color: #8f897c; }
.c3d__list dl { margin: 0; display: grid; gap: 1.1rem; }
.c3d__list dt { font-size: 1.06rem; font-weight: 600; }
.c3d__list dt span { display: block; font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; color: var(--c3d-accent, #d9b64a); }
.c3d__list dd { margin: .25rem 0 0; color: #b9b3a4; font-size: 1rem; line-height: 1.5; max-width: 62ch; }

@media (max-width: 900px) {
  .c3d__rail { display: none; }
  .c3d__card { left: 1rem; right: 1rem; width: auto; bottom: 1.2rem; padding: 1.1rem 1.15rem; }
  .c3d__text { font-size: 1.1rem; }
  .c3d__title { max-width: none; right: 1rem; top: 1.25rem; }
  .c3d__title h2 { font-size: 1.9rem; }
}
@media (prefers-reduced-motion: reduce) {
  .c3d__track { height: auto; }
  .c3d__stage { position: relative; height: 62vh; }
  .c3d__card, .c3d__rail, .c3d__lead, .c3d__pin { display: none; }
}