/* Showcase: the rebuild story, live capability demos, and checkable proof.
   The rebuild reads one value per fix (--a1..--a5 audit marks, --f1..--f6 fixes), set by showcase.js from scroll. */

/* ---------- 1. the rebuild ---------- */
.rebuild { position: relative; height: 560svh; padding-block: 0; }
.rebuild .stage { position: sticky; top: var(--nav); height: calc(100svh - var(--nav)); display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 20px; align-items: center; padding: 18px var(--g); max-width: 1500px; margin-inline: auto; }
.rb-head { position: absolute; left: var(--g); right: var(--g); top: 14px; display: flex; justify-content: space-between; gap: 12px; font: 500 11px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; border-bottom: 2px solid var(--ink); padding-bottom: 8px; z-index: 3; }
.rb-head .phase { color: var(--red-ink); }
.browser { position: relative; align-self: center; margin-top: 36px; border: 1.5px solid var(--ink); background: #fff; box-shadow: 8px 8px 0 var(--shadow); overflow: hidden; }
.browser .bar { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1.5px solid var(--ink); background: var(--sheet); font: 500 11px/1 var(--mono); letter-spacing: .08em; }
.browser .bar i { width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid var(--ink); }
.browser .bar .url { margin-left: 10px; padding: 4px 10px; border: 1px solid var(--rule); flex: 1; color: var(--grey); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.browser .bar .fic { background: var(--ink); color: var(--paper); padding: 4px 8px; }
.viewport { position: relative; width: 100%; aspect-ratio: 1000 / 600; overflow: hidden; }
.site { position: absolute; left: 0; top: 0; width: 1000px; height: 600px; transform-origin: 0 0; transform: scale(var(--s, 1)); font-family: var(--body); }

/* BEFORE: the saggy template */
.b-bg { position: absolute; inset: 0; background: linear-gradient(135deg, #6d5bd0, #3b82f6); opacity: calc(1 - var(--f2, 0)); }
.a-bg { position: absolute; inset: 0; background: #f4efe6; opacity: var(--f2, 0); }
.s-nav { position: absolute; left: 0; right: 0; top: 0; height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 40px; color: #fff; font-size: 14px; }
.s-nav .lg { font-weight: 600; }
.s-nav .lg-a { position: absolute; left: 40px; font: 400 26px/1 var(--display); letter-spacing: .04em; color: #1b1612; opacity: var(--f2, 0); }
.s-nav .lg-b { opacity: calc(1 - var(--f2, 0)); }
.s-nav .lnk { display: flex; gap: 22px; opacity: calc(.9 - var(--f2, 0) * .9); }
.s-nav .cta-a { position: absolute; right: 40px; top: 12px; height: 32px; padding: 0 14px; display: flex; align-items: center; background: #b8461b; color: #fff; font: 600 12px/1 var(--body); letter-spacing: .04em; transform: translateY(calc((1 - var(--f5, 0)) * -60px)); opacity: var(--f5, 0); }
.b-hero { position: absolute; left: 0; right: 0; top: 110px; text-align: center; color: #fff; opacity: calc(1 - var(--f1, 0)); transform: translateY(calc(var(--f1, 0) * -20px)); }
.b-hero .hx { margin: 0; font: 600 34px/1.2 var(--body); }
.b-hero p { margin: 10px 0 0; font-size: 15px; opacity: .8; }
.b-hero .lnk { display: inline-block; margin-top: 16px; font-size: 13px; text-decoration: underline; opacity: .8; }
.b-cards { position: absolute; left: 110px; right: 110px; top: 300px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; opacity: calc(1 - var(--f3, 0)); transform: scale(calc(1 - var(--f3, 0) * .06)); }
.b-cards div { background: rgba(255,255,255,.18); border-radius: 16px; padding: 22px; color: #fff; text-align: center; box-shadow: 0 8px 20px rgba(0,0,0,.15); }
.b-cards b { display: block; width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,.4); margin: 0 auto 12px; }
.b-cards span { font-size: 14px; font-weight: 600; } .b-cards small { display: block; font-size: 12px; opacity: .75; margin-top: 4px; }
.b-img { position: absolute; left: 110px; right: 110px; top: 470px; height: 110px; border-radius: 16px; background: repeating-linear-gradient(45deg, rgba(255,255,255,.18) 0 10px, rgba(255,255,255,.1) 10px 20px); color: rgba(255,255,255,.7); display: grid; place-items: center; font-size: 12px; opacity: calc(1 - var(--f6, 0)); }

/* AFTER: built strong */
.a-hero { position: absolute; left: 40px; top: 96px; width: 520px; color: #1b1612; }
.a-hero .ey { font: 500 11px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: #b8461b; opacity: var(--f1, 0); }
.a-hero .hx { margin: 12px 0 0; font: 400 66px/.9 var(--display); clip-path: inset(0 calc((1 - var(--f1, 0)) * 100%) 0 0); }
.a-hero p { margin: 14px 0 0; font-size: 15px; line-height: 1.5; color: #4b4036; max-width: 42ch; opacity: var(--f1, 0); }
.a-hero .btn-a { display: inline-flex; align-items: center; height: 42px; margin-top: 18px; padding: 0 18px; background: #b8461b; color: #fff; font: 600 13px/1 var(--body); transform: scale(calc(.6 + var(--f5, 0) * .4)); opacity: var(--f5, 0); transform-origin: left center; }
.a-hero .sec { margin-left: 14px; font-size: 13px; color: #1b1612; border-bottom: 1px solid #b8461b; opacity: var(--f5, 0); }
.a-grid { position: absolute; right: 40px; top: 84px; width: 380px; height: 330px; display: grid; grid-template-columns: 1.2fr 1fr; grid-template-rows: 1fr 1fr; gap: 10px; opacity: var(--f3, 0); transform: translateY(calc((1 - var(--f3, 0)) * 30px)); }
.a-grid div { position: relative; overflow: hidden; }
.a-grid div:first-child { grid-row: span 2; }
.a-grid div::after { content: attr(data-l); position: absolute; left: 10px; bottom: 10px; font: 500 10px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: #fff; }
.t1 { background: radial-gradient(circle at 30% 35%, #e9a23b 0 18%, transparent 19%), radial-gradient(circle at 62% 58%, #c2410c 0 22%, transparent 23%), radial-gradient(circle at 40% 75%, #7c2d12 0 14%, transparent 15%), #3b2416; }
.t2 { background: radial-gradient(circle at 50% 55%, #f6d58a 0 30%, transparent 31%), #8a5a2b; }
.t3 { background: repeating-linear-gradient(-20deg, #4d6b3c 0 6px, #5f8249 6px 12px); }
.a-proof { position: absolute; left: 40px; right: 40px; top: 440px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 2px solid #1b1612; opacity: var(--f4, 0); transform: translateY(calc((1 - var(--f4, 0)) * 24px)); }
.a-proof div { padding: 12px 14px 0 0; color: #1b1612; } .a-proof div + div { border-left: 1px solid rgba(27,22,18,.2); padding-left: 14px; }
.a-proof b { display: block; font: 400 30px/1 var(--display); } .a-proof span { font-size: 12px; color: #4b4036; }
.speed { position: absolute; right: 40px; bottom: 18px; display: flex; align-items: center; gap: 10px; padding: 6px 10px; background: #1b1612; color: #fff; font: 500 11px/1 var(--mono); letter-spacing: .1em; opacity: calc(.25 + var(--f6, 0) * .75); }
.speed i { display: block; width: 80px; height: 6px; background: #444; position: relative; }
.speed i::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: calc(18% + var(--f6, 0) * 82%); background: linear-gradient(90deg, #ff1e1e, #3ad46a calc(var(--f6, 0) * 100%)); }

/* audit marks */
.mark { position: absolute; border: 3px solid var(--red); border-radius: 6px; pointer-events: none; opacity: calc(var(--a, 0) * (1 - var(--f2, 0) * .75)); transform: scale(calc(1.15 - var(--a, 0) * .15)); transition: border-color .4s; }
.mark span { position: absolute; left: -3px; top: -30px; white-space: nowrap; background: var(--red); color: #fff; font: 600 12px/1 var(--body); padding: 6px 8px; }
.mark.fixed { border-color: #1a9a4a; opacity: calc(var(--a, 0) * (1 - var(--fix, 0))); }
.mark.fixed span { background: #1a9a4a; }
.m1 { left: 250px; top: 100px; width: 500px; height: 74px; --a: var(--a1); --fix: var(--f1); }
.m2 { left: 100px; top: 290px; width: 800px; height: 150px; --a: var(--a2); --fix: var(--f3); }
.m3 { left: 330px; top: 20px; width: 340px; height: 36px; --a: var(--a3); --fix: var(--f4); }
.m3 span { top: auto; bottom: -30px; }
.m4 { left: 420px; top: 186px; width: 160px; height: 30px; --a: var(--a4); --fix: var(--f5); }
.m5 { left: 100px; top: 460px; width: 800px; height: 130px; --a: var(--a5); --fix: var(--f6); }

/* changelog */
.log { margin-top: 36px; align-self: center; }
.log .win .wb { gap: 0; padding: 0; }
.log ol { list-style: none; margin: 0; padding: 0; counter-reset: l; }
.log li { counter-increment: l; display: grid; grid-template-columns: 26px 1fr; gap: 10px; padding: 11px 14px; border-bottom: 1px solid var(--rule); font-size: 13.5px; line-height: 1.35; opacity: .7; transition: opacity .3s; }
.log li::before { content: attr(data-n); font: 500 11px/1.6 var(--mono); color: var(--red-ink); }
.log li.found { opacity: 1; } .log li.found b { color: var(--red-ink); }
.log li.done b { color: var(--ok); } .log li.done::before { content: "✓"; color: var(--ok); font-size: 13px; }
.log li b { display: block; font: 600 13px/1.3 var(--body); }
.log .foot-note { padding: 10px 14px; font: 500 10.5px/1.4 var(--mono); letter-spacing: .06em; color: var(--grey); }
@media (max-width: 980px) {
  .rebuild { height: 520svh; }
  .rebuild .stage { grid-template-columns: 1fr; align-content: start; gap: 12px; padding-top: 52px; }
  .browser { margin-top: 0; }
  .log { margin-top: 0; }
  .log li { display: none; } .log li.current { display: grid; opacity: 1; }
}

/* ---------- 2. capability tiles ---------- */
.caps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 3vw, 36px); }
@media (max-width: 760px) { .caps { grid-template-columns: 1fr; } }
.cap .demo { position: relative; aspect-ratio: 16 / 10; overflow: hidden; border-bottom: 1.5px solid var(--ink); background: var(--ink); color: var(--paper); }
.cap .wb p { margin: 0; }
/* identity: the mark assembles */
.id-demo { display: grid; place-items: center; align-content: center; gap: 4%; }
.id-demo .mk-anim { width: 22%; height: auto; color: #fff; overflow: visible; }
.id-demo .mk-anim .sl { transform-box: fill-box; transform-origin: 50% 0; transform: scaleY(var(--k1, 1)); }
.id-demo .mk-anim .dt { transform-box: fill-box; transform-origin: 50% 50%; transform: scale(var(--k2, 1)); }
.id-demo .wm { display: grid; justify-items: center; gap: 6px; opacity: var(--k3, 1); transform: translateY(calc((1 - var(--k3, 1)) * 14px)); }
.id-demo .wm b { font: 400 clamp(26px, 3.4vw, 44px)/1 var(--display); letter-spacing: .18em; padding-left: .18em; font-weight: 400; }
.id-demo .wm small { font: 500 clamp(9px, 1vw, 12px)/1 var(--mono); letter-spacing: .4em; padding-left: .4em; color: var(--red); }
/* interface: a live dashboard */
.ui-demo { padding: 18px; display: grid; grid-template-rows: auto 1fr; gap: 12px; background: #101010; }
.ui-demo .kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.ui-demo .kpi { border: 1px solid #2a2a2a; padding: 10px; } .ui-demo .kpi small { font: 500 9.5px/1 var(--mono); letter-spacing: .14em; color: #8a8a8a; text-transform: uppercase; }
.ui-demo .kpi b { display: block; font: 400 32px/1.1 var(--display); margin-top: 4px; font-variant-numeric: tabular-nums; }
.ui-demo .bars { display: flex; align-items: flex-end; gap: 6px; border-bottom: 1px solid #2a2a2a; border-left: 1px solid #2a2a2a; padding: 0 8px; }
.ui-demo .bars i { flex: 1; background: #3a3a3a; transform-origin: bottom; height: var(--h); transform: scaleY(var(--g, 1)); transition: transform .8s cubic-bezier(.2,.8,.2,1); }
.ui-demo .bars i:last-child { background: var(--red); }
/* film */
.film-demo video { width: 100%; height: 100%; object-fit: cover; }
/* tactile product card */
.tilt-demo { display: grid; place-items: center; perspective: 900px; background: #e9e4da; }
.tilt-card { width: 52%; aspect-ratio: 3 / 4; background: #1b1612; color: #f4efe6; padding: 18px; display: grid; align-content: space-between; transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .25s ease-out; box-shadow: 18px 24px 40px -18px rgba(0,0,0,.55); position: relative; overflow: hidden; }
.tilt-card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at var(--gx, 50%) var(--gy, 30%), rgba(255,255,255,.22), transparent 45%); pointer-events: none; }
.tilt-card small { font: 500 10px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: #e9a23b; }
.tilt-card b { font: 400 clamp(28px, 3vw, 40px)/.9 var(--display); }
.tilt-card .sw { display: flex; gap: 6px; } .tilt-card .sw i { width: 16px; height: 16px; border-radius: 50%; }

/* ---------- 3. proof you can check ---------- */
.proof-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.proof-grid > div { padding: 16px 18px 0 0; } .proof-grid > div + div { border-left: 1px solid var(--rule); padding-left: 18px; }
.proof-grid b { display: block; font: 400 clamp(48px, 6vw, 84px)/.9 var(--display); font-variant-numeric: tabular-nums; }
.proof-grid span { font-size: 14px; color: var(--grey); }
@media (max-width: 760px) { .proof-grid { grid-template-columns: 1fr 1fr; row-gap: 20px; } .proof-grid > div:nth-child(3) { border-left: 0; padding-left: 0; } }

@media (max-height: 520px) {
  .rebuild { height: auto; } .rebuild .stage { position: relative; top: 0; height: auto; padding-block: 40px; }
  .log li { display: grid !important; }
}
@media (prefers-reduced-motion: reduce) {
  .rebuild { height: auto; } .rebuild .stage { position: relative; top: 0; height: auto; padding-block: 60px; }
  .log li { display: grid !important; opacity: 1; }
  .ui-demo .bars i, .tilt-card { transition: none; }
}

/* pause control on looping demos */
.demo-pause { margin-left: auto; font: 500 10.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; background: none; color: inherit; border: 1px solid currentColor; padding: 4px 8px; cursor: pointer; }
.cap .tb { align-items: center; }