/* Fabrication: a full-bleed welding hero, joints compared, a sticky photo story with a weld bead */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.fb-hero { position: relative; min-height: 100svh; display: grid; align-items: end; padding: 140px 0 clamp(60px, 10vh, 110px); color: #fff; overflow: hidden; background: #0b1020; }
.fb-hero__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 40%; transform: scale(1.06); animation: fb-zoom 14s ease-out forwards; }
@keyframes fb-zoom { to { transform: scale(1); } }
.fb-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8, 12, 24, .92) 0%, rgba(8, 12, 24, .6) 50%, rgba(8, 12, 24, .2) 100%), linear-gradient(0deg, rgba(8, 12, 24, .7), transparent 50%); }
.fb-hero__copy { position: relative; z-index: 1; display: grid; gap: 22px; }
.fb-hero__copy .crumbs { color: rgba(255, 255, 255, .7); }
.fb-hero h1 { font-size: clamp(40px, 6.2vw, 96px); }
.fb-lime { color: var(--lime); }
.fb-hero__lede { max-width: 52ch; color: rgba(255, 255, 255, .85); font-size: clamp(16px, 1.4vw, 19px); }

.fb-joints__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 30px clamp(30px, 6vw, 90px); align-items: start; }
.fb-joints__grid > div:first-child { display: grid; gap: 16px; }
.seams { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.seams__tank { position: relative; height: 200px; border-radius: 22px; background: linear-gradient(90deg, #cfcabb, #ece8dd 40%, #d6d1c3); overflow: hidden; display: grid; align-content: end; padding: 16px 20px; }
.seams__tank i { position: absolute; left: 0; right: 0; height: 3px; background: #b8b2a2; box-shadow: 0 1px 0 rgba(255, 255, 255, .7); }
.seams__tank--many i:nth-child(1) { top: 16%; } .seams__tank--many i:nth-child(2) { top: 32%; } .seams__tank--many i:nth-child(3) { top: 48%; } .seams__tank--many i:nth-child(4) { top: 64%; }
.seams__tank--many i:nth-child(5) { top: 0; bottom: 0; left: 40%; right: auto; width: 3px; height: auto; }
.seams__tank--few i { top: 0; bottom: 0; left: 60%; right: auto; width: 3px; height: auto; background: var(--lime); box-shadow: 0 0 12px rgba(168, 198, 6, .7); }
.seams__tank span { position: relative; font-weight: 500; font-size: 15px; color: #2b2a24; background: rgba(255, 255, 255, .8); justify-self: start; padding: 6px 12px; border-radius: 999px; }

.fb-story { padding: clamp(60px, 8vw, 110px) 0; }
.fb-story__grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(30px, 6vw, 90px); }
.fb-story__media { position: relative; }
.frame2 { position: sticky; top: 110px; margin: 0; aspect-ratio: 4 / 3.2; border-radius: 26px; overflow: hidden; background: #0b1020; box-shadow: 0 50px 90px -50px rgba(13, 20, 36, .7); }
.frame2 img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.06); transition: opacity .8s, transform 1.4s var(--ease); }
.frame2 img.is-on { opacity: 1; transform: none; }
.frame2 figcaption { position: absolute; left: 18px; bottom: 16px; padding: 7px 12px; border-radius: 999px; background: rgba(255, 255, 255, .92); font-size: 13px; font-weight: 500; font-variant-numeric: tabular-nums; }
.fb-story__steps { position: relative; padding-left: 40px; }
.bead { position: absolute; left: 6px; top: 0; bottom: 0; width: 6px; border-radius: 6px; background: #e8e4d8; }
.bead i { position: absolute; left: 0; top: 0; width: 100%; height: calc(var(--bp, 0) * 100%); border-radius: 6px; background: linear-gradient(180deg, #d9d4c5, #c2bca9); }
.bead i::after { content: ""; position: absolute; left: 50%; bottom: -8px; width: 18px; height: 18px; margin-left: -9px; border-radius: 50%; background: radial-gradient(circle, #fff6d6, #ff9c3a 45%, rgba(255, 120, 30, 0) 70%); box-shadow: 0 0 22px 8px rgba(255, 140, 40, .45); }
.st { min-height: 62svh; display: grid; align-content: center; gap: 12px; opacity: .3; transition: opacity .5s; }
.st.is-on { opacity: 1; }
.st span { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--green); font-weight: 500; }
.st h3 { font-size: clamp(28px, 3vw, 42px); }
.st p { color: var(--ink-2); max-width: 46ch; }

.std { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.std__card { display: grid; gap: 12px; align-content: start; padding: 28px; border-radius: 22px; border: 1px solid var(--line); background: #fff; }
.std__card b { font-size: 24px; font-weight: 600; letter-spacing: -.02em; }
.std__card p { color: var(--muted); }
.std__card--dvs { background: var(--navy); color: #fff; border-color: transparent; }
.std__card--dvs b { color: var(--lime); }
.std__card--dvs p { color: rgba(255, 255, 255, .8); }
.mach { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.mach li { display: grid; gap: 14px; padding: 24px; border-radius: 20px; background: var(--bg-soft); }
.mach svg { width: 52px; height: 52px; fill: none; stroke: var(--navy); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.mach b { font-weight: 500; font-size: 17px; }

.fb-plus__grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(30px, 6vw, 90px); align-items: start; }
.fb-plus__grid > div { display: grid; gap: 14px; }
.plus { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.plus li { display: grid; gap: 8px; padding: 24px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.plus b { font-weight: 500; font-size: 19px; }
.plus span { color: var(--muted); font-size: 15px; }

@media (max-width: 1000px) {
  .fb-joints__grid, .fb-story__grid, .fb-plus__grid { grid-template-columns: 1fr; }
  .fb-story__media { position: sticky; top: 74px; z-index: 2; }
  .frame2 { position: relative; top: 0; aspect-ratio: 16 / 9; border-radius: 0 0 20px 20px; }
  .st { min-height: 46svh; }
  .std, .mach { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) { .std, .mach, .plus, .seams { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .fb-hero__img { animation: none; transform: none; } .frame2 img { transition: none; } }