<!-- SOLID CITY · part 3030 -->
ning night, 2026-10-14 —
       * the profession's priority family made literal: plain
       * slope, then more slope, then a wall, never an open
       * edge). The graded face above is floored by the bench
       * line, and where the land falls faster than the face may
       * follow, the foot is left standing above a slope it never
       * met: the vertex audit counted 356 feet district-wide
       * more than 0.3 m proud of the ground beneath them, the
       * worst near twelve metres. Where the march has not met
       * the land, it now CHASES it — the bench floor lifted, the
       * same graded law walking on to a grading limit of
       * fourteen metres from the edge. If the land still has
       * not been met there — cliff country, where the slope is
       * a wall already — the profile ends in THE WALL: one plumb
       * drop at the last offset to a hand under the land, which
       * the surfacing law reads as stone. Every foot now rests
       * on the ground, or stands over a wall that does. */
      if (!met && pts[6][1] - lands[6] > 0.05) {
        var metC = false;
        for (var k2 = 7; k2 <= 14; k2++) {
          var d2 = 1.05 * k2;
          var px2 = e[0] + dirx * d2, pz2 = e[2] + dirz * d2;
          var land2 = groundAt(px2, pz2) - 0.25;
          var y2 = Math.max(e[1] - 0.62 * d2, Math.min(land2, e[1] + riseCap * d2));
          pts.push([px2, y2, pz2]);
          if (y2 === land2) { metC = true; break; }
        }
        if (!metC) {
          var lastP = pts[pts.length - 1];
          var landLast = groundAt(lastP[0], lastP[2]) - 0.15;
          if (lastP[1] - landLast > 0.05) pts.push([lastP[0], landLast, lastP[2]]);
        }
        met = metC;
      }
      return { pts: pts, met: met };
    }
    var drapeCacheL = [], drapeCacheR = [];
    for (i = 0; i < N - 1; i++) {
      var A = st[i], B = st[i + 1];
      quad(ribbon, A.L, B.L, B.R, A.R); standQuad(stand, A.L, B.L, B.R, A.R);
      /* curbs: a top ribbon and an outer face, both edges; the top stands */
      var sides = [-1, 1];
      for (var q = 0; q < 2; q++) {
        var sd = sides[q], curb = sd < 0 ? curbL : curbR, gold = sd < 0 ? goldL : goldR;
        var out0 = 0.32, lift0 = 0.0;
        if (spec.furniture === 'bench') {
          /* THE BENCH KIT (the King's photographs): a dirt shoulder on
           * both edges — the carriageway's own ground, stood on like
           * the road — and on the DOWNHILL edge a guardrail: posts and
           * a silver rail over the drop. No curb, no gold: those are
           * street furniture, and this is a mountain. */
          out0 = 0.95; lift0 = 0.015;
          var sho = sd < 0 ? shoL : shoR;
          var hA0 = edgePt(A, sd, 0.02, 0.015), hA1 = edgePt(A, sd, 0.95, 0.015);
          var hB0 = edgePt(B, sd, 0.02, 0.015), hB1 = edgePt(B, sd, 0.95, 0.015);
          quad(sho, hA0, hB0, hB1, hA1); standQuad(stand, hA0, hB0, hB1, hA1);
          if (sd === -upSide) {
            var rAl = edgePt(A, sd, 0.62, 0.38), rAh = edgePt(A, sd, 0.62, 0.66);
            var rBl = edgePt(B, sd, 0.62, 0.38), rBh = edgePt(B, sd, 0.62, 0.66);
            quad(rail, rAl, rBl, rBh, rAh, [sd * A.rx, sd * A.rz]);
            quad(rail, rBl, rAl, rAh, rBh, [sd * A.rx, sd * A.rz]);
            var tA0 = edgePt(A, sd, 0.56, 0.66), tA1 = edgePt(A, sd, 0.68, 0.66);
            var tB0 = edgePt(B, sd, 0.56, 0.66), tB1 = edgePt(B, sd, 0.68, 0.66);
            quad(rail, tA0, tB0, tB1, tA1);
            if (i % 2 === 0) {
              var pb = edgePt(A, sd, 0.62, 0.0), py0 = pb[1] - 0.06, py1 = pb[1] + 0.60;
              var pc = function (dx, dz, y) { return [pb[0] + A.rx * dx + A.fx * dz, y, pb[2] + A.rz * dx + A.fz * dz]; };
              var p00 = pc(-0.09, -0.09, py0), p10 = pc(0.09, -0.09, py0), p11 = pc(0.09, 0.09, py0), p01 = pc(-0.09, 0.09, py0);
              var p00t = pc(-0.09, -0.09, py1), p10t = pc(0.09, -0.09, py1), p11t = pc(0.09, 0.09, py1), p01t = pc(-0.09, 0.09, py1);
              quad(posts, p00, p10, p10t, p00t); quad(posts, p10, p11, p11t, p10t);
              quad(posts, p11, p01, p01t, p11t); quad(posts, p01, p00, p00t, p01t);
              quad(posts, p00t, p10t, p11t, p01t);
            }
          }
        } else {
        var cA0 = edgePt(A, sd, 0.02, 0.02), cA1 = edgePt(A, sd, 0.32, 0.15);
        var cB0 = edgePt(B, sd, 0.02, 0.02), cB1 = edgePt(B, sd, 0.32, 0.15);
        quad(curb, cA0, cB0, cB1, cA1); standQuad(stand, cA0, cB0, cB1, cA1);
        var fA = [cA1[0], cA1[1] - 0.19, cA1[2]], fB = [cB1[0], cB1[1] - 0.19, cB1[2]];
        quad(curb, cA1, cB1, fB, fA, [sd * A.rx, sd * A.rz]);
        var gA0 = edgePt(A, sd, 0.05, 0.157), gA1 = edgePt(A, sd, 0.13, 0.157);
        var gB0 = edgePt(B, sd, 0.05, 0.157), gB1 = edgePt(B, sd, 0.13, 0.157);
        quad(gold, gA0, gB0, gB1, gA1);
        /* the sidewalk, on the uphill side: from the curb's outer edge */
        if (walkSide === sd) {
          var wA0 = edgePt(A, sd, 0