/* Zeddie in-page product animations — faithful mini-recreations of the real board,
   using the app's own design tokens (design/covera-ops.html :root). Silent, looping,
   pauses offscreen, static end-state under prefers-reduced-motion.
   Stage is a fixed 960px design; JS scales it to the container so every device
   renders the identical composition. All classes prefixed zd-. */

.zd-demo {
  /* app tokens */
  --zbg: #eff3f5; --zpanel: #fff; --zpanel2: #fafbfd;
  --zink: #0d1b2a; --zink2: #414b5a; --zink3: #6b7686; --zink4: #9aa3b0;
  --zline: #e2e6ec; --zline2: #d6dbe3;
  --zl1: #c0392b; --zl1bg: #fce9e7; --zl1bd: #e6b8b1; --zl1ink: #8f271c;
  --zl2: #8a5300; --zl2bg: #fbeedb; --zl2bd: #e8cfa3; --zl2ink: #7a4a00;
  --zl3: #1b5e9b; --zl3bg: #e6f0fa; --zl3bd: #bad4ee; --zl3ink: #16456f;
  --zl4: #59616b; --zl4bg: #eef0f2; --zl4bd: #d6dbe2; --zl4ink: #414b5a;
  --zok: #0f766e; --zokbg: #e3f2ef; --zokbd: #b9ded7; --zokink: #0b5b54;
  --zgap: #b71c1c; --zgapbg: #fbe1de; --zgapbd: #eeb7b3;
  --zshadow: 0 1px 2px rgba(20, 29, 41, 0.06), 0 6px 20px rgba(20, 29, 41, 0.06);
  position: relative;
  width: 100%;
  overflow: visible;
  background: var(--zbg);
  border-radius: 0 0 var(--radius) var(--radius);
}
.zd-demo * { box-sizing: border-box; margin: 0; padding: 0; }

/* fixed-design stage, scaled by JS */
.zd-stage {
  position: absolute; top: 0; left: 0;
  width: 960px;
  transform-origin: top left;
  transition: opacity 0.28s ease;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--zink);
  padding: 18px;
  line-height: 1.35;
}

/* ---------- app chrome ---------- */
.zd-topbar {
  display: flex; align-items: center; gap: 12px; margin-bottom: 14px;
}
.zd-wordmark { font-weight: 800; font-size: 17px; letter-spacing: -0.02em; color: var(--zink); }
.zd-wordmark i { font-style: normal; color: #14bba6; }
.zd-live { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--zink2); }
.zd-live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--zok); }
.zd-clock { font-size: 11.5px; color: var(--zgap); font-weight: 600; }
.zd-topbar .zd-spacer { flex: 1; }
.zd-resolve-btn {
  background: var(--zink); color: #fff; font-size: 11.5px; font-weight: 700;
  padding: 7px 14px; border-radius: 9px; display: inline-flex; align-items: center; gap: 6px;
}
.zd-resolve-btn.zd-firing { animation: zd-btnpulse 0.6s ease; }
.zd-demo:has(.zd-covered.zd-solving) .zd-resolve-btn { animation: zd-btnbreathe 1s ease infinite; }
@keyframes zd-btnbreathe { 50% { box-shadow: 0 0 0 5px rgba(15, 118, 110, 0.22); } }
@keyframes zd-btnpulse { 40% { transform: scale(1.08); box-shadow: 0 0 0 6px rgba(15, 118, 110, 0.25); } }

/* ---------- KPI row ---------- */
.zd-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 12px; }
.zd-kpi {
  background: var(--zpanel); border: 1px solid var(--zline); border-radius: 10px;
  padding: 9px 12px 8px; box-shadow: var(--zshadow);
}
.zd-kpi .zd-kpi-label { font-size: 9px; font-weight: 800; letter-spacing: 0.09em; color: var(--zink3); text-transform: uppercase; }
.zd-kpi .zd-kpi-num { font-size: 22px; font-weight: 800; color: var(--zink); line-height: 1.15; }
.zd-kpi .zd-kpi-num small { font-size: 12px; color: var(--zink4); font-weight: 700; }
.zd-kpi .zd-kpi-sub { font-size: 10px; color: var(--zink3); }
.zd-kpi.zd-teal .zd-kpi-num { color: var(--zok); }
.zd-kpi.zd-alert .zd-kpi-num { color: var(--zgap); }
.zd-kpi.zd-flash { animation: zd-kpiflash 0.7s ease; }
@keyframes zd-kpiflash { 30% { background: var(--zgapbg); border-color: var(--zgapbd); transform: scale(1.04); } }
.zd-kpi.zd-flash-ok { animation: zd-kpiflashok 0.7s ease; }
@keyframes zd-kpiflashok { 30% { background: var(--zokbg); border-color: var(--zokbd); transform: scale(1.04); } }

/* ---------- main layout ---------- */
.zd-main { display: grid; grid-template-columns: 118px 1fr 218px; gap: 10px; align-items: start; }
.zd-main.zd-main--two { grid-template-columns: 1fr 218px; }

/* attendance strip */
.zd-att {
  background: var(--zpanel); border: 1px solid var(--zline); border-radius: 10px;
  padding: 9px 9px 7px; box-shadow: var(--zshadow);
}
.zd-att-title { font-size: 8px; font-weight: 800; letter-spacing: 0.09em; color: var(--zink3); text-transform: uppercase; margin-bottom: 7px; }
.zd-ea { display: flex; align-items: center; gap: 6px; padding: 4px 0; font-size: 11px; font-weight: 600; color: var(--zink2); }
.zd-ea .zd-avatar {
  width: 16px; height: 16px; border-radius: 5px; background: #b95445; color: #fff;
  font-size: 8.5px; font-weight: 800; display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.zd-ea .zd-toggle {
  margin-left: auto; width: 22px; height: 12px; border-radius: 999px; background: var(--zok);
  position: relative; transition: background 0.25s ease; flex-shrink: 0;
}
.zd-ea .zd-toggle::after {
  content: ""; position: absolute; top: 1.5px; left: 11.5px; width: 9px; height: 9px;
  border-radius: 50%; background: #fff; transition: left 0.25s ease;
}
.zd-ea.zd-out { color: var(--zink4); }
.zd-ea.zd-out .zd-avatar { opacity: 0.45; }
.zd-ea.zd-out .zd-toggle { background: var(--zline2); }
.zd-ea.zd-out .zd-toggle::after { left: 1.5px; }
.zd-ea .zd-outtag {
  display: none; font-size: 7.5px; font-weight: 800; color: var(--zgap); letter-spacing: 0.05em;
}
.zd-ea.zd-out .zd-outtag { display: inline; }

/* board */
.zd-board {
  background: var(--zpanel); border: 1px solid var(--zline); border-radius: 10px;
  padding: 10px 12px 12px; box-shadow: var(--zshadow); position: relative; overflow: hidden;
}
.zd-timehead {
  display: grid; grid-template-columns: 74px 1fr 34px 1fr 44px 1fr; gap: 4px;
  font-size: 8px; font-weight: 800; letter-spacing: 0.07em; color: var(--zink4);
  text-transform: uppercase; margin-bottom: 8px; align-items: center;
}
.zd-timehead .zd-th { background: var(--zpanel2); border: 1px solid var(--zline); border-radius: 5px; text-align: center; padding: 2.5px 0; }
.zd-timehead .zd-th.zd-dim { background: repeating-linear-gradient(135deg, #f4f6f8 0 4px, #eceff3 4px 8px); }
.zd-row {
  display: grid; grid-template-columns: 74px 1fr 34px 1fr 44px 1fr; gap: 4px;
  margin-bottom: 5px; align-items: stretch;
}
.zd-rowlabel { display: flex; flex-direction: column; justify-content: center; gap: 1px; font-size: 10.5px; font-weight: 800; color: var(--zink); line-height: 1.15; white-space: nowrap; }
.zd-rowlabel .zd-rl-top { display: flex; align-items: center; gap: 4px; }
.zd-rowlabel .zd-lvl {
  font-size: 7.5px; font-weight: 800; padding: 1.5px 4px; border-radius: 4px; color: #fff;
}
.zd-rowlabel .zd-div { font-size: 8px; color: var(--zink4); font-weight: 600; }
.zd-lvl.zd-1 { background: var(--zl1); } .zd-lvl.zd-2 { background: var(--zl2); }
.zd-lvl.zd-3 { background: var(--zl3); } .zd-lvl.zd-4 { background: var(--zl4); }

.zd-block {
  border-radius: 6px; border: 1px solid; font-size: 10.5px; font-weight: 700;
  padding: 6px 7px; min-height: 25px; display: flex; align-items: center; gap: 4px;
  transition: background 0.35s ease, border-color 0.35s ease, color 0.35s ease, opacity 0.35s ease, box-shadow 0.2s ease;
  position: relative; white-space: nowrap; overflow: hidden;
}
.zd-block.zd-b1 { background: var(--zl1bg); border-color: var(--zl1bd); color: var(--zl1ink); }
.zd-block.zd-b2 { background: var(--zl2bg); border-color: var(--zl2bd); color: var(--zl2ink); }
.zd-block.zd-b3 { background: var(--zl3bg); border-color: var(--zl3bd); color: var(--zl3ink); }
.zd-block.zd-b4 { background: var(--zl4bg); border-color: var(--zl4bd); color: var(--zl4ink); }
.zd-block.zd-gapped { background: var(--zgapbg); border: 1.5px dashed var(--zgapbd); color: var(--zgap); }
.zd-block.zd-changed::after {
  content: ""; position: absolute; inset: 0; border-radius: 5px;
  border: 1.5px dashed #1b5e9b; animation: zd-changedin 1s ease;
}
@keyframes zd-changedin { 0% { opacity: 0; } 25% { opacity: 1; } }
.zd-block .zd-lock { font-size: 8px; margin-left: auto; }
.zd-block.zd-swap { animation: zd-swapflash 0.8s ease; }
@keyframes zd-swapflash { 30% { transform: scale(1.06); box-shadow: 0 4px 14px rgba(27, 94, 155, 0.35); } }
.zd-gapcol { /* narrow recess/lunch cells */
  background: repeating-linear-gradient(135deg, #f7f9fa 0 4px, #eef1f4 4px 8px);
  border: 1px solid var(--zline); border-radius: 6px; min-height: 25px;
  font-size: 8px; color: var(--zink4); display: flex; align-items: center; justify-content: center;
}

/* scan beam for re-solve */
.zd-beam {
  position: absolute; top: 0; bottom: 0; width: 90px; left: -120px; opacity: 0;
  background: linear-gradient(90deg, transparent, rgba(20, 187, 166, 0.22), transparent);
  pointer-events: none;
}
.zd-beam.zd-sweep { animation: zd-beamsweep 1.1s cubic-bezier(0.4, 0, 0.2, 1); }
@keyframes zd-beamsweep { 0% { left: -120px; opacity: 1; } 100% { left: 110%; opacity: 1; } }

/* right panel */
.zd-side { display: flex; flex-direction: column; gap: 10px; }
.zd-panel {
  background: var(--zpanel); border: 1px solid var(--zline); border-radius: 10px;
  padding: 10px 12px; box-shadow: var(--zshadow);
}
.zd-panel-title { font-size: 9.5px; font-weight: 800; letter-spacing: 0.09em; color: var(--zink3); text-transform: uppercase; margin-bottom: 7px; }
.zd-covered {
  background: var(--zokbg); border-color: var(--zokbd);
}
.zd-covered .zd-cov-head { font-size: 12.5px; font-weight: 800; color: var(--zokink); display: flex; align-items: center; gap: 6px; }
.zd-covered .zd-cov-sub { font-size: 10.5px; color: var(--zink2); margin-top: 4px; }
.zd-covered.zd-solving { background: var(--zl2bg); border-color: var(--zl2bd); }
.zd-covered.zd-solving .zd-cov-head { color: var(--zl2ink); }
.zd-changes-list { min-height: 76px; }
.zd-trace .zd-trace-list { min-height: 92px; }
.zd-change { display: flex; gap: 6px; font-size: 11px; color: var(--zink2); padding: 3.5px 0; align-items: baseline; }
.zd-change b { color: var(--zink); }
.zd-change .zd-chx { color: var(--zgap); font-weight: 800; flex-shrink: 0; }
.zd-change .zd-charr { color: var(--zok); font-weight: 800; flex-shrink: 0; }
.zd-nochange { font-size: 11px; color: var(--zink4); padding: 6px 0 4px; }
.zd-trace-item {
  font-size: 10.5px; color: var(--zink2); background: var(--zpanel2); border: 1px solid var(--zline);
  border-radius: 7px; padding: 6px 8px; margin-top: 6px;
}
.zd-trace-item b { color: var(--zink); }
.zd-trace-item.zd-t-warn { background: #fdf7ec; border-color: #eee1c4; }

/* pop-over composition: on wide stages the side rail and attendance strip
   float past the browser-shell edge like layered callout cards */
.zd-demo:not(.zd-narrow) .zd-main .zd-side { margin-right: -34px; }
.zd-demo:not(.zd-narrow) .zd-main > .zd-att { margin-left: -30px; }
@media (max-width: 1220px) {
  .zd-demo:not(.zd-narrow) .zd-main .zd-side { margin-right: -10px; }
  .zd-demo:not(.zd-narrow) .zd-main > .zd-att { margin-left: -10px; }
}
.zd-demo:not(.zd-narrow) .zd-side .zd-panel,
.zd-demo:not(.zd-narrow) .zd-main > .zd-att {
  box-shadow: 0 2px 4px rgba(20, 29, 41, 0.06), 0 18px 44px -14px rgba(20, 29, 41, 0.28);
}

/* ---------- solving pass: interactions visibly re-calculate ---------- */
.zd-solvepill {
  position: absolute; left: 50%; top: 46%; transform: translate(-50%, -50%) scale(0.92);
  z-index: 45; background: #fff; border: 1.5px solid var(--zokbd); border-radius: 12px;
  padding: 10px 18px 12px; box-shadow: 0 14px 44px rgba(20, 29, 41, 0.25);
  opacity: 0; transition: opacity 0.18s ease, transform 0.22s cubic-bezier(0.34, 1.4, 0.64, 1);
  pointer-events: none; min-width: 170px; text-align: center;
}
.zd-solvepill.zd-on { opacity: 1; transform: translate(-50%, -50%); }
.zd-solvepill span {
  font-size: 11px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--zink2);
}
.zd-solvepill i {
  display: block; height: 3.5px; border-radius: 2px; background: var(--zline); margin-top: 7px;
  position: relative; overflow: hidden;
}
.zd-solvepill i::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 45%; border-radius: 2px;
  background: var(--zok); animation: zd-solveprog 0.9s cubic-bezier(0.4, 0.1, 0.3, 1) infinite;
}
@keyframes zd-solveprog { 0% { left: -45%; } 100% { left: 100%; } }
.zd-demo.zd-computing .zd-board .zd-block,
.zd-demo.zd-computing .zd-ep .zd-chips,
.zd-demo.zd-computing .zd-tpls .zd-tpl {
  opacity: 0.55; filter: saturate(0.55);
}
.zd-demo .zd-board .zd-block, .zd-demo .zd-ep .zd-chips, .zd-demo .zd-tpls .zd-tpl { transition: opacity 0.25s ease, filter 0.25s ease; }
.zd-block.zd-pending { border-style: dashed !important; animation: zd-pendpulse 0.7s ease infinite; }
@keyframes zd-pendpulse { 50% { opacity: 0.55; } }

/* ---------- fake cursor ---------- */
.zd-cursor {
  position: absolute; top: 0; left: 0; width: 20px; height: 20px; z-index: 30; opacity: 0;
  transition: transform 0.7s cubic-bezier(0.45, 0.05, 0.25, 1), opacity 0.3s ease;
  pointer-events: none; filter: drop-shadow(0 2px 4px rgba(13, 27, 42, 0.35));
}
.zd-cursor.zd-click svg { animation: zd-clickpop 0.28s ease; }
@keyframes zd-clickpop { 40% { scale: 0.72; } }
.zd-cursor svg { width: 100%; height: 100%; }

/* click ripple */
.zd-ripple {
  position: absolute; width: 34px; height: 34px; border-radius: 50%; z-index: 29;
  border: 2px solid rgba(15, 118, 110, 0.7); opacity: 0; pointer-events: none;
  transform: translate(-50%, -50%) scale(0.3);
}
.zd-ripple.zd-go { animation: zd-rippleout 0.55s ease-out; }
@keyframes zd-rippleout { 0% { opacity: 0.9; transform: translate(-50%, -50%) scale(0.3); } 100% { opacity: 0; transform: translate(-50%, -50%) scale(1.25); } }

/* ---------- entrance choreography ---------- */
.zd-demo [data-enter] { opacity: 0; transform: translateY(14px); }
.zd-demo.zd-static [data-enter], .zd-demo [data-enter].zd-in {
  opacity: 1; transform: none;
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.zd-demo .zd-pop.zd-in { transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1); }

/* ---------- segmented control (ideal/real) ---------- */
.zd-seg {
  display: inline-flex; background: var(--zpanel2); border: 1px solid var(--zline);
  border-radius: 999px; padding: 3px; gap: 2px; position: relative;
}
.zd-seg .zd-seg-opt {
  font-size: 10.5px; font-weight: 700; color: var(--zink3); padding: 5px 14px; border-radius: 999px;
  transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
.zd-seg .zd-seg-opt.zd-on { background: var(--zink); color: #fff; box-shadow: var(--zshadow); }
.zd-seg .zd-seg-opt.zd-pre { animation: zd-segpre 0.5s ease; }
@keyframes zd-segpre { 45% { background: var(--zokbg); color: var(--zokink); box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.18); } }
.zd-stage.zd-fadeout { opacity: 0; }

/* ---------- popover (reassign) ---------- */
.zd-popover {
  position: absolute; z-index: 60; width: 224px; background: var(--zpanel);
  border: 1px solid var(--zline2); border-radius: 10px; box-shadow: 0 12px 44px rgba(20, 29, 41, 0.25);
  padding: 9px; opacity: 0; transform: scale(0.96) translateY(4px); transform-origin: top left;
  transition: opacity 0.15s ease, transform 0.15s ease;
  pointer-events: none;
}
.zd-popover.zd-open {
  opacity: 1; transform: none; pointer-events: auto;
  transition: opacity 0.28s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.zd-pop-head { font-size: 10px; font-weight: 800; letter-spacing: 0.06em; color: var(--zink3); text-transform: uppercase; padding: 2px 6px 7px; }
.zd-pop-item {
  display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 700; color: var(--zink);
  padding: 7px 7px; border-radius: 7px; transition: background 0.2s ease; cursor: pointer;
}
.zd-pop-item .zd-lvl { font-size: 8.5px; padding: 2px 5px; border-radius: 4px; color: #fff; font-weight: 800; }
.zd-pop-item small { color: var(--zink3); font-weight: 600; font-size: 10.5px; }
.zd-pop-item.zd-hover, .zd-pop-item:hover { background: var(--zl3bg); }
.zd-pop-item.zd-picked { background: var(--zokbg); }
.zd-pop-off {
  border-top: 1px solid var(--zline); margin-top: 6px; padding: 8px 4px 3px; color: var(--zgap);
  font-size: 11px; font-weight: 700; text-align: center; cursor: pointer; border-radius: 7px;
}
.zd-pop-off:hover { background: var(--zgapbg); }

/* toast */
.zd-toast {
  position: absolute; left: 50%; bottom: -18px; transform: translate(-50%, 14px); z-index: 50;
  box-shadow: 0 10px 30px rgba(1, 28, 54, 0.35);
  background: var(--zink); color: #fff; font-size: 12.5px; font-weight: 600;
  padding: 8px 16px; border-radius: 999px; opacity: 0; white-space: nowrap; max-width: 92%;
  overflow: hidden; text-overflow: ellipsis;
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.zd-toast.zd-show {
  opacity: 1; transform: translate(-50%, 0);
  transition: opacity 0.3s ease, transform 0.45s cubic-bezier(0.34, 1.4, 0.64, 1);
}

/* ---------- interactivity layer ---------- */
.zd-try {
  position: absolute; bottom: -14px; right: 14px; z-index: 40; pointer-events: none;
  box-shadow: 0 8px 24px rgba(1, 28, 54, 0.3);
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(13, 27, 42, 0.88); color: #fff; font-size: 12px; font-weight: 600;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: 7px 13px; border-radius: 999px; transition: opacity 0.3s ease;
}
.zd-try::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: #14bba6;
  animation: zd-tryblink 1.6s ease infinite;
}
@keyframes zd-tryblink { 50% { opacity: 0.35; } }
.zd-try.zd-hide { opacity: 0; }
.zd-demo.zd-toasting .zd-try { opacity: 0; }
.zd-replay { transition: opacity 0.3s ease; }
.zd-demo.zd-toasting .zd-replay { opacity: 0; pointer-events: none; }
.zd-try.zd-nudge { animation: zd-nudgepulse 0.45s ease; }
@keyframes zd-nudgepulse { 40% { transform: scale(1.08); } }
.zd-replay {
  position: absolute; bottom: -14px; left: 14px; z-index: 40; display: none;
  background: #fff; color: var(--zink); border: 1px solid var(--zline2);
  font-size: 12px; font-weight: 700; padding: 7px 13px; border-radius: 999px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  cursor: pointer; box-shadow: var(--zshadow);
}
.zd-replay:hover { background: var(--zpanel2); }
.zd-demo.zd-user .zd-replay { display: inline-flex; }
.zd-demo.zd-user .zd-cursor, .zd-demo.zd-user .zd-beam:not(.zd-sweep) { opacity: 0 !important; }
.zd-demo.zd-user .zd-cursor { display: none; }

/* clickable affordances inside the stage */
.zd-demo .zd-ea { cursor: pointer; border-radius: 6px; padding-left: 3px; padding-right: 3px; margin: 0 -3px; transition: background 0.2s ease; }
.zd-demo .zd-ea .zd-toggle { transition: background 0.25s ease, box-shadow 0.2s ease; }
.zd-demo .zd-ea:hover { background: var(--zokbg); }
.zd-demo .zd-ea:hover .zd-toggle { box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.18); }
.zd-demo .zd-seg-opt { cursor: pointer; }
.zd-demo .zd-resolve-btn { cursor: pointer; user-select: none; }
.zd-demo .zd-resolve-btn:hover { background: var(--zink2); }
.zd-demo[data-zd-scene="zd-reassign"] .zd-block { cursor: pointer; }
.zd-demo[data-zd-scene="zd-reassign"] .zd-block:hover { box-shadow: 0 0 0 2px rgba(27, 94, 155, 0.45); }

/* caption under each demo (lives outside the scaled stage) */
.zd-caption {
  padding: 14px 18px; font-size: 14.5px; color: var(--muted, #5a6b7d);
  border-top: 1px solid var(--line-cool, #dfe5ea); background: #fff; position: relative; z-index: 2;
}
.zd-caption b { color: var(--navy, #011c36); font-weight: 650; }
.zd-step-label { transition: opacity 0.3s ease; }

/* ---------- narrow mode (container < 700px): compact 480px design ---------- */
.zd-demo.zd-narrow .zd-att { display: none; }
.zd-demo.zd-narrow .zd-main, .zd-demo.zd-narrow .zd-main.zd-main--two { grid-template-columns: 1fr; }
.zd-demo.zd-narrow .zd-setupbox, .zd-demo.zd-narrow .zd-ep, .zd-demo.zd-narrow .zd-sheet { width: 100%; }
.zd-demo.zd-narrow .zd-kpis { grid-template-columns: 1fr 1fr; gap: 8px; }
.zd-demo.zd-narrow .zd-timehead,
.zd-demo.zd-narrow .zd-row { grid-template-columns: 52px 1fr 18px 1fr 22px 1fr; }
.zd-demo.zd-narrow .zd-rowlabel .zd-div { display: none; }
.zd-demo.zd-narrow .zd-timehead .zd-th.zd-dim { font-size: 0; }
.zd-demo.zd-narrow .zd-topbar { flex-wrap: wrap; row-gap: 6px; }
.zd-demo.zd-narrow .zd-popover { width: 300px; }
.zd-demo.zd-narrow .zd-pop-item { font-size: 15px; padding: 12px 8px; }
.zd-demo.zd-narrow .zd-pop-head { font-size: 12px; }
.zd-demo.zd-narrow .zd-pop-off { font-size: 13px; padding: 12px 4px 6px; }
/* the cursor's targets (attendance toggle) are hidden in narrow mode —
   the story auto-plays and the state changes carry it */
.zd-demo.zd-narrow[data-zd-scene="zd-hero"] .zd-cursor { display: none; }
/* hero's interactive target (attendance strip) is hidden in narrow mode,
   so don't advertise interactivity there */
.zd-demo.zd-narrow[data-zd-scene="zd-hero"] .zd-try { display: none; }

/* replay affordance for reduced-motion users: none — static end state is shown */
@media (prefers-reduced-motion: reduce) {
  .zd-demo .zd-cursor, .zd-demo .zd-beam { display: none !important; }
}


/* ---------- scene: school setup (zd-setup) ---------- */
.zd-setupbox {
  position: relative;
  width: 560px; margin: 0 auto; background: var(--zpanel); border: 1px solid var(--zline2);
  border-radius: 14px; box-shadow: 0 12px 44px rgba(20, 29, 41, 0.18); overflow: hidden;
}
.zd-setuphead { padding: 16px 20px 12px; border-bottom: 1px solid var(--zline); background: var(--zpanel2); }
.zd-setuphead b { font-size: 15px; color: var(--zink); }
.zd-setuphead div { font-size: 11px; color: var(--zink3); margin-top: 2px; }
.zd-tpls { padding: 14px 18px 6px; }
.zd-tpl {
  border: 1.5px solid var(--zline); border-radius: 10px; padding: 10px 13px; margin-bottom: 10px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease; cursor: pointer;
}
.zd-tpl b { font-size: 12.5px; color: var(--zink); }
.zd-tpl .zd-tpl-desc { font-size: 10.5px; color: var(--zink3); margin-top: 4px; }
.zd-tpl .zd-bell { display: flex; gap: 3px; margin-top: 7px; }
.zd-tpl .zd-bell i {
  height: 7px; border-radius: 3px; background: var(--zline2); flex: 1;
}
.zd-tpl .zd-bell i.zd-b-rec { flex: 0 0 22px; background: repeating-linear-gradient(135deg, #e6ecf0 0 3px, #d8e0e6 3px 6px); }
.zd-tpl.zd-hovering { border-color: var(--zline2); background: var(--zpanel2); }
.zd-tpl.zd-picked { border-color: var(--zok); background: var(--zokbg); box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15); }
.zd-tpl.zd-picked .zd-bell i { background: var(--zokbd); }
.zd-tpl.zd-picked .zd-bell i.zd-b-rec { background: repeating-linear-gradient(135deg, #cde5e0 0 3px, #b9ded7 3px 6px); }
.zd-setupfoot { display: flex; justify-content: flex-end; gap: 10px; padding: 12px 18px 16px; }
.zd-btn-ghost { font-size: 11.5px; font-weight: 700; color: var(--zink2); border: 1px solid var(--zline2); border-radius: 999px; padding: 7px 16px; cursor: pointer; background: #fff; }
.zd-btn-dark { font-size: 11.5px; font-weight: 700; color: #fff; background: var(--zink); border-radius: 999px; padding: 7px 16px; cursor: pointer; }
.zd-btn-dark.zd-firing { animation: zd-btnpulse 0.6s ease; }

/* ---------- scene: build the ideal day (zd-build) ---------- */
.zd-slot {
  border: 1.5px dashed var(--zline2); border-radius: 6px; min-height: 25px; background: var(--zpanel2);
}
.zd-fill-pop { animation: zd-fillpop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes zd-fillpop { 0% { transform: scale(0.85); opacity: 0; } 100% { transform: none; opacity: 1; } }

/* ---------- scene: EA panel (zd-eapanel) ---------- */
.zd-ep {
  position: relative;
  width: 460px; margin: 0 auto; background: var(--zpanel); border: 1px solid var(--zline);
  border-radius: 14px; box-shadow: var(--zshadow); padding: 16px 18px;
}
.zd-ep-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.zd-ep-head .zd-avatar { width: 30px; height: 30px; border-radius: 9px; font-size: 14px; background: #b95445; color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; }
.zd-ep-head b { font-size: 15px; color: var(--zink); display: block; }
.zd-ep-head span { font-size: 10.5px; color: var(--zink3); }
.zd-ep-row { margin: 12px 0; }
.zd-ep-label { font-size: 9px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--zink3); margin-bottom: 7px; display: flex; justify-content: space-between; }
.zd-ep-label small { font-weight: 600; text-transform: none; letter-spacing: 0; color: var(--zink4); }
.zd-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.zd-chip {
  font-size: 11px; font-weight: 700; color: var(--zink2); background: var(--zpanel2);
  border: 1px solid var(--zline); border-radius: 8px; padding: 6px 12px; cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.zd-chip:hover { border-color: var(--zline2); background: #fff; }
.zd-chip.zd-on { background: var(--zink); color: #fff; border-color: var(--zink); }
.zd-cap {
  font-size: 11px; font-weight: 700; border-radius: 999px; padding: 6px 13px; cursor: pointer;
  border: 1.5px solid var(--zline2); color: var(--zink3); background: #fff; display: inline-flex; align-items: center; gap: 6px;
  transition: all 0.25s ease;
}
.zd-cap i { width: 7px; height: 7px; border-radius: 50%; background: var(--zink4); font-style: normal; }
.zd-cap.zd-on { border-color: var(--zokbd); background: var(--zokbg); color: var(--zokink); }
.zd-cap.zd-on i { background: var(--zok); }
.zd-cap.zd-swap { animation: zd-swapflash 0.8s ease; }

/* ---------- scene: printable sheet (zd-print) ---------- */
.zd-sheet {
  width: 560px; margin: 0 auto; background: #fff; border: 1px solid var(--zline);
  border-radius: 4px; box-shadow: 0 10px 34px rgba(20, 29, 41, 0.16); padding: 20px 24px 16px;
  font-family: Georgia, "Times New Roman", serif;
}
.zd-sheet.zd-printing { animation: zd-sheetlift 0.7s ease; }
@keyframes zd-sheetlift { 40% { transform: translateY(-6px); box-shadow: 0 22px 50px rgba(20, 29, 41, 0.28); } }
.zd-sheet-title { font-size: 14px; font-weight: 700; color: #111; border-bottom: 2px solid #111; padding-bottom: 6px; }
.zd-sheet-sec { font-size: 8.5px; font-weight: 800; letter-spacing: 0.1em; color: #333; margin: 12px 0 4px; font-family: var(--sans, sans-serif); }
.zd-sheetrow { display: flex; gap: 12px; font-size: 10px; color: #222; padding: 4px 0; border-bottom: 1px solid #e8e8e4; }
.zd-sheetrow b { flex: 0 0 74px; font-size: 10.5px; }
.zd-sheet-foot { font-size: 8.5px; color: #777; margin-top: 10px; font-style: italic; }

/* ---------- scene: transparency rail (zd-trace3) ---------- */
.zd-rail { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; align-items: start; }
.zd-demo.zd-narrow .zd-rail { grid-template-columns: 1fr; }
.zd-work { display: flex; gap: 7px; font-size: 10.5px; color: var(--zink2); padding: 4px 0; align-items: baseline; transition: opacity 0.3s ease; }
.zd-work .zd-tick { color: var(--zok); font-weight: 800; opacity: 0; transition: opacity 0.3s ease; }
.zd-work.zd-done { color: var(--zink4); text-decoration: line-through; }
.zd-work.zd-done .zd-tick { opacity: 1; text-decoration: none; display: inline-block; }