/* Materials: a periodic table of what we build with, and an exploded dual-laminate wall */
.mt-hero { padding: 140px 0 40px; }
.mt-hero__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 30px 60px; align-items: end; }
.mt-hero__grid > div { display: grid; gap: 22px; }
.mt-table-sec { padding: 20px 0 clamp(70px, 9vw, 120px); }
.mt-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.mt-filter .chip { cursor: pointer; }
.mt-filter .chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.mt-filter i, .k-thermo, .k-fluoro, .k-comp { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.k-thermo { background: #2e4b8f; } .k-fluoro { background: #1f8f8a; } .k-comp { background: #8fb40d; }
.mt-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 24px; align-items: start; }
.ptable { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.el { --c: #2e4b8f; position: relative; aspect-ratio: 1; display: grid; align-content: space-between; padding: 14px; text-align: left; border-radius: 14px; border: 1px solid color-mix(in srgb, var(--c) 30%, transparent); background: color-mix(in srgb, var(--c) 7%, #fff); cursor: pointer; transition: transform .35s var(--ease), box-shadow .35s, background .3s, opacity .3s; }
.el--fluoro { --c: #1f8f8a; } .el--comp { --c: #6e8f00; }
.el small { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
.el b { font-size: clamp(20px, 2.2vw, 32px); font-weight: 600; letter-spacing: -.02em; line-height: 1; color: var(--c); }
.el span { font-size: 12px; color: var(--ink-2); }
.el:hover { transform: translateY(-4px); box-shadow: 0 20px 34px -22px color-mix(in srgb, var(--c) 70%, transparent); }
.el[aria-selected="true"] { background: var(--c); border-color: var(--c); }
.el[aria-selected="true"] b, .el[aria-selected="true"] span, .el[aria-selected="true"] small { color: #fff; }
.el.is-dim { opacity: .25; }
.mt-card { position: sticky; top: 100px; display: grid; gap: 14px; padding: clamp(24px, 3vw, 36px); border-radius: 26px; color: #fff; background: radial-gradient(120% 90% at 100% 0%, color-mix(in srgb, var(--c, #2e4b8f) 70%, #fff 0%), var(--c, #2e4b8f) 60%); box-shadow: 0 40px 70px -40px color-mix(in srgb, var(--c, #2e4b8f) 80%, transparent); transition: background .5s; }
.mt-card__sym { font-size: clamp(56px, 6vw, 88px); font-weight: 600; letter-spacing: -.04em; line-height: .9; }
.mt-card__kind { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: rgba(255, 255, 255, .75); }
.mt-card h2 { font-size: clamp(22px, 2.2vw, 30px); }
.mt-card > p { color: rgba(255, 255, 255, .88); }
.mt-card__use { display: grid; gap: 4px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .25); font-size: 14px; }
.mt-card__use b { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; font-weight: 500; color: rgba(255, 255, 255, .7); }
.mt-card .btn { justify-self: start; background: #fff; color: var(--navy); box-shadow: none; }
.mt-card.is-swap > * { animation: mt-in .45s var(--ease); }
@keyframes mt-in { from { opacity: 0; transform: translateY(8px); } }

.mt-dual { height: 260svh; background: #0d1424; color: #fff; }
.mt-dual__pin { position: sticky; top: 0; height: 100svh; display: grid; align-items: center; overflow: hidden; }
.mt-dual .eyebrow { color: rgba(255, 255, 255, .6); }
.mt-dual .lede { color: rgba(255, 255, 255, .78); }
.mt-dual__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(30px, 6vw, 90px); align-items: center; }
.mt-dual__copy { display: grid; gap: 18px; }
.layers { position: relative; height: min(64svh, 520px); perspective: 1400px; }
.layer { position: absolute; left: 10%; right: 10%; top: 50%; height: 34%; margin-top: -17%; border-radius: 16px; display: grid; align-content: end; padding: 16px 20px; transform-style: preserve-3d;
  transform: translate3d(calc(var(--e, 0) * var(--dx)), calc(var(--e, 0) * var(--dy)), 0) rotateX(58deg) rotateZ(-28deg); box-shadow: 0 30px 50px -20px rgba(0, 0, 0, .6); transition: transform .1s linear; }
.layer span { font-weight: 500; font-size: 17px; }
.layer small { font-size: 12.5px; opacity: .8; }
.layer--liner { --dx: -60px; --dy: -150px; background: linear-gradient(135deg, #e7e2d4, #c9c3b2); color: #2b2a24; z-index: 4; }
.layer--bond { --dx: -20px; --dy: -50px; background: repeating-linear-gradient(45deg, #b9a46a 0 6px, #a28d55 6px 12px); color: #2b2412; z-index: 3; }
.layer--frp { --dx: 20px; --dy: 50px; background: repeating-linear-gradient(60deg, rgba(255, 255, 255, .08) 0 3px, transparent 3px 9px), repeating-linear-gradient(-60deg, rgba(255, 255, 255, .08) 0 3px, transparent 3px 9px), linear-gradient(135deg, #2b4a86, #1e2f5c); z-index: 2; }
.layer--top { --dx: 60px; --dy: 150px; background: linear-gradient(135deg, #8fb40d, #5d7a00); color: #13200a; z-index: 1; }

@media (max-width: 1000px) {
  .mt-hero__grid, .mt-grid, .mt-dual__grid { grid-template-columns: 1fr; }
  .mt-card { position: static; }
  .mt-dual { height: auto; }
  .mt-dual__pin { position: relative; height: auto; padding: 90px 0; }
  .layers { height: 420px; }
}
@media (max-width: 560px) { .ptable { grid-template-columns: repeat(3, minmax(0, 1fr)); } .el { padding: 10px; } .el span { display: none; } }