/* ==========================================================================
   Z&S ENTERPRISES — PACKAGING STUDIO (gallery.html)
   A digital packaging lab: fold mechanics, structure anatomy, configurator,
   workbench and industry scenes. Shares brand tokens from style.css.
   ========================================================================== */

.zs-studio {
  background: var(--zs-cream);
  overflow-x: hidden;
}

.zs-studio section { position: relative; }

.zs-studio-container {
  width: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 var(--zs-gutter);
}

/* ---- shared technical vocabulary --------------------------------------- */

.zs-mono-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--zs-mocha-warm);
}

.zs-studio-kicker {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.zs-studio-kicker .zs-mono-tag { color: var(--zs-gold); }

.zs-studio-kicker-line {
  flex: 1;
  height: 1px;
  background: var(--zs-line);
}

/* reveal-on-scroll (self-contained, respects reduced motion) */
[data-ps-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms var(--zs-ease), transform 700ms var(--zs-ease);
}
[data-ps-reveal].is-in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  [data-ps-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   01 — HERO — ENTER THE STUDIO
   ========================================================================== */

.zs-ps-hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: radial-gradient(120% 130% at 15% 0%, #1c3427 0%, var(--zs-bg) 55%, #0f1a15 100%);
  color: var(--zs-ivory);
  padding: calc(var(--zs-nav-clearance) + 24px) 0 64px;
  --fold: 0; /* 0 = flat sheet, 1 = fully folded package */
}

.zs-ps-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(244,240,231,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244,240,231,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(75% 60% at 50% 40%, #000 40%, transparent 90%);
  pointer-events: none;
}

.zs-ps-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 20px;
  min-height: 68vh;
}

.zs-ps-hero-copy { position: relative; z-index: 3; }

.zs-ps-hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--zs-gold);
  display: block;
  margin-bottom: 22px;
}

.zs-ps-hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 0.94;
  font-size: clamp(46px, 6.4vw, 96px);
  margin: 0;
  text-transform: uppercase;
}

.zs-ps-hero-title span {
  display: block;
  opacity: calc(0.28 + var(--fold) * 0.72);
  transition: opacity 60ms linear;
}

.zs-ps-hero-title span em {
  font-style: normal;
  color: var(--zs-gold);
}

.zs-ps-hero-sub {
  max-width: 460px;
  margin: 26px 0 34px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--zs-text-muted);
}

.zs-ps-hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--zs-ivory);
  opacity: 0.75;
}
.zs-ps-hero-scroll-track {
  width: 30px; height: 2px; background: rgba(244,240,231,0.25); position: relative; overflow: hidden;
}
.zs-ps-hero-scroll-track::after {
  content: ""; position: absolute; inset: 0; width: 40%; background: var(--zs-gold);
  animation: zsPsScrollTrack 1.8s ease-in-out infinite;
}
@keyframes zsPsScrollTrack {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(340%); }
}

/* ---- the fold stage ---- */

.zs-ps-fold-stage {
  position: relative;
  height: 420px;
  perspective: 1400px;
  z-index: 2;
}

.zs-ps-fold-sheet {
  position: absolute;
  inset: 0;
  margin: auto;
  width: min(70%, 260px);
  height: min(70%, 260px);
  transform-style: preserve-3d;
  transform: rotateX(calc(var(--fold) * 8deg)) rotateY(calc(var(--fold) * -6deg));
}

.zs-ps-flap {
  position: absolute;
  background: linear-gradient(155deg, #2C4A3A, #1F3328);
  border: 1px solid rgba(244,240,231,0.14);
  box-shadow: inset 0 0 0 1px rgba(244,240,231,0.03);
}

.zs-ps-flap-base {
  inset: 0;
  background: linear-gradient(155deg, #2C4A3A, #1F3328);
}

.zs-ps-flap-top {
  left: 0; right: 0; top: -100%; height: 100%;
  transform-origin: bottom center;
  transform: rotateX(calc(180deg - var(--fold) * 90deg));
  background: linear-gradient(200deg, #33543F, #223729);
}

.zs-ps-flap-left {
  top: 0; bottom: 0; left: -100%; width: 100%;
  transform-origin: right center;
  transform: rotateY(calc(-180deg + var(--fold) * 90deg));
  background: linear-gradient(20deg, #24392C, #1A2A21);
}

.zs-ps-flap-right {
  top: 0; bottom: 0; right: -100%; width: 100%;
  transform-origin: left center;
  transform: rotateY(calc(180deg - var(--fold) * 90deg));
  background: linear-gradient(160deg, #2A4436, #1C2E24);
}

.zs-ps-fold-label {
  position: absolute;
  bottom: -34px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--zs-gold);
  opacity: 0.85;
}

.zs-ps-fold-state {
  font-family: var(--font-mono);
  font-weight: 600;
}

.zs-ps-hero-hint {
  position: absolute;
  right: 0;
  bottom: -34px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--zs-text-muted);
  opacity: 0.7;
}

@media (max-width: 1180px) {
  .zs-ps-hero-inner { grid-template-columns: 1fr; gap: 48px; text-align: left; }
  .zs-ps-fold-stage { height: 320px; }
}
@media (max-width: 640px) {
  .zs-ps-hero-title { font-size: clamp(38px, 11vw, 60px); }
  .zs-ps-fold-stage { height: 240px; }
}

/* ==========================================================================
   02 — STRUCTURE LAB (prototype + anatomy + blueprint)
   ========================================================================== */

.zs-ps-lab {
  padding: 120px 0 100px;
  background: var(--zs-cream);
  border-top: 1px solid var(--zs-line);
}

.zs-ps-lab-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 48px;
}

.zs-ps-lab-title { font-size: clamp(30px, 4vw, 48px); margin: 0; max-width: 620px; }

.zs-ps-lab-desc { max-width: 340px; color: var(--zs-charcoal-soft); font-size: 15px; line-height: 1.65; }

.zs-ps-lab-grid {
  display: grid;
  grid-template-columns: 240px 1fr 220px;
  gap: 28px;
  align-items: start;
}

/* structure list */
.zs-ps-structs {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--zs-line);
}
.zs-ps-struct-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--zs-line);
  padding: 14px 4px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--zs-charcoal-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  transition: color 200ms var(--zs-ease), padding-left 200ms var(--zs-ease);
}
.zs-ps-struct-btn:hover { color: var(--zs-charcoal); padding-left: 8px; }
.zs-ps-struct-btn.is-active { color: var(--zs-forest); }
.zs-ps-struct-btn.is-active .zs-ps-struct-num { color: var(--zs-gold); }
.zs-ps-struct-num { font-family: var(--font-mono); font-size: 11px; color: var(--zs-charcoal-soft); }

/* prototype stage */
.zs-ps-stage {
  position: relative;
  min-height: 460px;
  border: 1px solid var(--zs-line);
  background: var(--zs-sand);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.zs-ps-stage-modes {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 5;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.zs-ps-mode-btn {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--zs-line);
  background: rgba(251,248,241,0.85);
  color: var(--zs-charcoal-soft);
  cursor: pointer;
  transition: all 200ms var(--zs-ease);
}
.zs-ps-mode-btn.is-active { background: var(--zs-forest); border-color: var(--zs-forest); color: var(--zs-ivory); }

.zs-ps-blueprint-toggle {
  position: absolute;
  top: 14px; right: 14px;
  z-index: 5;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--zs-mocha-warm);
  background: rgba(251,248,241,0.85);
  color: var(--zs-mocha-warm);
  cursor: pointer;
}
.zs-ps-blueprint-toggle.is-active { background: var(--zs-mocha-warm); color: var(--zs-ivory); }

.zs-ps-stage-media {
  position: relative;
  width: 78%;
  max-width: 340px;
  aspect-ratio: 1 / 1;
}

.zs-ps-stage-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 30px 40px rgba(34,29,23,0.18));
  opacity: 0;
  transform: scale(0.94);
  transition: opacity 480ms var(--zs-ease), transform 480ms var(--zs-ease), filter 400ms var(--zs-ease);
}
.zs-ps-stage-media img.is-active { opacity: 1; transform: scale(1); }

/* anatomy mode: separate the image into "layers" */
.zs-ps-stage[data-mode="anatomy"] .zs-ps-stage-media img.is-active {
  transform: scale(0.82) translateY(-18px);
  filter: drop-shadow(0 60px 50px rgba(34,29,23,0.22));
}

.zs-ps-anatomy-layer {
  position: absolute;
  left: 50%;
  bottom: 6%;
  transform: translate(-50%, 0) scale(0);
  opacity: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--zs-forest);
  background: rgba(251,248,241,0.92);
  border: 1px solid var(--zs-gold-line);
  padding: 5px 10px;
  white-space: nowrap;
  transition: transform 420ms var(--zs-ease), opacity 300ms var(--zs-ease);
  pointer-events: none;
}
.zs-ps-stage[data-mode="anatomy"] .zs-ps-anatomy-layer {
  opacity: 1;
  transform: translate(calc(-50% + var(--lx, 0px)), var(--ly, 0px)) scale(1);
}

/* blueprint mode: technical overlay */
.zs-ps-blueprint-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 320ms var(--zs-ease);
  background-image:
    linear-gradient(rgba(31,51,40,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,51,40,0.08) 1px, transparent 1px);
  background-size: 22px 22px;
}
.zs-ps-stage.is-blueprint .zs-ps-blueprint-overlay { opacity: 1; }
.zs-ps-stage.is-blueprint .zs-ps-stage-media img.is-active {
  filter: sepia(0.15) saturate(0.35) brightness(0.94) drop-shadow(0 0 0 rgba(0,0,0,0));
  mix-blend-mode: multiply;
}
.zs-ps-stage.is-blueprint { background: #EFEAD9; }
.zs-ps-blueprint-note {
  position: absolute;
  bottom: 12px; left: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--zs-mocha-warm);
  opacity: 0;
  transition: opacity 320ms var(--zs-ease);
}
.zs-ps-stage.is-blueprint .zs-ps-blueprint-note { opacity: 1; }

/* structure meta panel */
.zs-ps-struct-meta { border-top: 1px solid var(--zs-line); padding-top: 16px; }
.zs-ps-struct-meta-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--zs-charcoal);
  margin: 0 0 8px;
}
.zs-ps-struct-meta-desc { font-size: 13.5px; color: var(--zs-charcoal-soft); line-height: 1.6; margin: 0 0 16px; }
.zs-ps-struct-meta-labels { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.zs-ps-struct-meta-labels li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--zs-forest);
  display: flex;
  align-items: center;
  gap: 8px;
}
.zs-ps-struct-meta-labels li::before { content: ""; width: 12px; height: 1px; background: var(--zs-gold); }

@media (max-width: 1180px) {
  .zs-ps-lab-grid { grid-template-columns: 1fr; }
  .zs-ps-structs { flex-direction: row; flex-wrap: wrap; border-top: none; }
  .zs-ps-struct-btn { width: auto; border-bottom: none; border: 1px solid var(--zs-line); border-radius: 999px; padding: 8px 14px; }
  .zs-ps-struct-btn:hover, .zs-ps-struct-btn.is-active { padding-left: 14px; }
}
@media (max-width: 640px) {
  .zs-ps-stage { min-height: 340px; }
}

/* ==========================================================================
   03 — HOW DOES IT OPEN
   ========================================================================== */

.zs-ps-open {
  padding: 100px 0;
  background: var(--zs-sand);
  border-top: 1px solid var(--zs-line);
}

.zs-ps-open-inner { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }

.zs-ps-open-copy .zs-ps-lab-title { max-width: 420px; }

.zs-ps-open-select { display: flex; gap: 8px; flex-wrap: wrap; margin: 22px 0 18px; }
.zs-ps-open-select button {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--zs-line);
  background: var(--zs-cream);
  color: var(--zs-charcoal-soft);
  cursor: pointer;
}
.zs-ps-open-select button.is-active { background: var(--zs-forest); border-color: var(--zs-forest); color: var(--zs-ivory); }

.zs-ps-open-status {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--zs-mocha-warm);
}

.zs-ps-open-stage {
  position: relative;
  height: 400px;
  border: 1px solid var(--zs-line);
  background: var(--zs-cream);
  overflow: hidden;
  touch-action: pan-y;
  cursor: grab;
  user-select: none;
}
.zs-ps-open-stage:active { cursor: grabbing; }

.zs-ps-open-media {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.zs-ps-open-media img {
  width: 60%;
  max-width: 280px;
  object-fit: contain;
  filter: drop-shadow(calc(30px + var(--open, 0) * 14px) calc(34px + var(--open, 0) * 10px) 34px rgba(34,29,23,calc(0.16 + var(--open, 0) * 0.08)));
  transform: translateY(calc(var(--open, 0) * -14px)) scale(calc(1 + var(--open, 0) * 0.04));
  transition: transform 90ms linear, filter 90ms linear;
}

/* Photo-agnostic "opening" cue: a soft light sweep + lifted shadow that
   works with any product photo, since the source images are generic
   marketing shots (not a consistent closed-box asset) and can't support
   a pixel-aligned flap overlay. */
.zs-ps-open-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(60% 50% at 50% 30%, rgba(244, 240, 231, calc(var(--open, 0) * 0.55)), transparent 70%);
  opacity: calc(var(--open, 0));
  transition: opacity 90ms linear;
  z-index: 3;
}

.zs-ps-open-instructions {
  position: absolute;
  bottom: 12px; left: 0; right: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--zs-charcoal-soft);
  opacity: 0.75;
}

.zs-ps-open-btn {
  margin-top: 18px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--zs-forest);
  background: none;
  color: var(--zs-forest);
  cursor: pointer;
}

@media (max-width: 1180px) {
  .zs-ps-open-inner { grid-template-columns: 1fr; }
}

/* ==========================================================================
   04 — PURPOSE / SCENE TRANSFORMATION
   ========================================================================== */

.zs-ps-purpose {
  padding: 110px 0;
  color: var(--zs-ivory);
  background: var(--zs-scene-bg, var(--zs-forest));
  transition: background 620ms var(--zs-ease);
  overflow: hidden;
}

.zs-ps-purpose-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }

.zs-ps-purpose-list { display: flex; flex-direction: column; gap: 2px; margin: 26px 0 0; padding: 0; list-style: none; }
.zs-ps-purpose-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-top: 1px solid rgba(244,240,231,0.15);
  padding: 16px 0;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  color: rgba(244,240,231,0.55);
  transition: color 220ms var(--zs-ease);
}
.zs-ps-purpose-list li:last-child .zs-ps-purpose-btn { border-bottom: 1px solid rgba(244,240,231,0.15); }
.zs-ps-purpose-btn-name { font-family: var(--font-display); font-size: clamp(22px, 2.6vw, 32px); font-weight: 700; text-transform: uppercase; }
.zs-ps-purpose-btn-sub { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; white-space: nowrap; }
.zs-ps-purpose-btn.is-active { color: var(--zs-ivory); }
.zs-ps-purpose-btn.is-active .zs-ps-purpose-btn-sub { color: var(--zs-gold); }

.zs-ps-purpose-scene {
  position: relative;
  aspect-ratio: 4 / 3.2;
  border: 1px solid rgba(244,240,231,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.zs-ps-purpose-scene img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 10%;
  opacity: 0;
  transform: translateY(16px) scale(0.96);
  transition: opacity 520ms var(--zs-ease), transform 520ms var(--zs-ease);
}
.zs-ps-purpose-scene img.is-active { opacity: 1; transform: none; }

.zs-ps-purpose-copy {
  margin-top: 18px;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(244,240,231,0.85);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 420ms var(--zs-ease) 80ms, transform 420ms var(--zs-ease) 80ms;
}
.zs-ps-purpose-copy.is-active { opacity: 1; transform: none; }

@media (max-width: 1180px) {
  .zs-ps-purpose-inner { grid-template-columns: 1fr; }
}

/* ==========================================================================
   05 — BUILD YOUR PACKAGING (CONFIGURATOR)
   ========================================================================== */

.zs-ps-config { padding: 110px 0; background: var(--zs-cream); border-top: 1px solid var(--zs-line); }

.zs-ps-config-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }

.zs-ps-config-steps { list-style: none; margin: 28px 0 0; padding: 0; counter-reset: step; }
.zs-ps-config-step { border-top: 1px solid var(--zs-line); padding: 18px 0; }
.zs-ps-config-step:last-child { border-bottom: 1px solid var(--zs-line); }
.zs-ps-config-step-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.zs-ps-config-step-num { font-family: var(--font-mono); font-size: 11px; color: var(--zs-gold); }
.zs-ps-config-step-name { font-family: var(--font-body); font-weight: 700; font-size: 14px; color: var(--zs-charcoal); }
.zs-ps-config-options { display: flex; flex-wrap: wrap; gap: 8px; }
.zs-ps-config-opt {
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 13px;
  border-radius: 999px;
  border: 1px solid var(--zs-line);
  background: var(--zs-sand);
  color: var(--zs-charcoal-soft);
  cursor: pointer;
  transition: all 180ms var(--zs-ease);
}
.zs-ps-config-opt.is-active { background: var(--zs-forest); border-color: var(--zs-forest); color: var(--zs-ivory); }

.zs-ps-config-visual {
  position: sticky;
  top: calc(var(--zs-nav-clearance) + 20px);
  border: 1px solid var(--zs-line);
  background: var(--zs-sand);
  min-height: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 24px;
}

.zs-ps-config-stack { position: relative; width: 220px; height: 220px; margin-bottom: 22px; }
.zs-ps-config-stack-layer {
  position: absolute;
  left: 50%; bottom: 0;
  transform: translate(-50%, 30px);
  width: 100%;
  opacity: 0;
  padding: 9px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--zs-gold-line);
  background: var(--zs-cream);
  color: var(--zs-forest);
  transition: transform 420ms var(--zs-ease), opacity 420ms var(--zs-ease);
}
.zs-ps-config-stack-layer.is-set {
  opacity: 1;
  transform: translate(-50%, calc(var(--layer-i, 0) * -34px));
}
.zs-ps-config-summary { width: 100%; border-top: 1px solid var(--zs-line); padding-top: 16px; }
.zs-ps-config-summary dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0 0 18px; }
.zs-ps-config-summary dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--zs-charcoal-soft); }
.zs-ps-config-summary dd { margin: 0; font-family: var(--font-body); font-size: 13px; font-weight: 600; color: var(--zs-charcoal); }
.zs-ps-config-ready { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--zs-gold); margin-bottom: 12px; display: block; }

@media (max-width: 1180px) {
  .zs-ps-config-grid { grid-template-columns: 1fr; }
  .zs-ps-config-visual { position: relative; top: auto; }
}

/* ==========================================================================
   06 — THE PACKAGING WORKBENCH
   ========================================================================== */

.zs-ps-bench { padding: 110px 0; background: var(--zs-forest); color: var(--zs-ivory); }

.zs-ps-bench-desk {
  position: relative;
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  min-height: 300px;
}

.zs-ps-bench-obj {
  position: relative;
  border: 1px solid rgba(244,240,231,0.16);
  background: rgba(244,240,231,0.04);
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: transform 260ms var(--zs-ease), background 260ms var(--zs-ease), opacity 260ms var(--zs-ease), border-color 260ms var(--zs-ease);
}
.zs-ps-bench-obj img { width: 100%; aspect-ratio: 1/1; object-fit: contain; filter: drop-shadow(0 10px 14px rgba(0,0,0,0.35)); }
.zs-ps-bench-obj-name { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; text-align: center; color: rgba(244,240,231,0.75); }

.zs-ps-bench-desk.has-focus .zs-ps-bench-obj { opacity: 0.4; transform: scale(0.94); }
.zs-ps-bench-desk.has-focus .zs-ps-bench-obj.is-focus {
  opacity: 1;
  transform: translateY(-10px) scale(1.06);
  border-color: var(--zs-gold);
  background: rgba(244,240,231,0.08);
}

.zs-ps-bench-info {
  margin-top: 26px;
  border-top: 1px solid rgba(244,240,231,0.16);
  padding-top: 20px;
  min-height: 64px;
}
.zs-ps-bench-info-name { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin: 0 0 8px; }
.zs-ps-bench-info-desc { font-size: 14px; line-height: 1.65; color: rgba(244,240,231,0.75); max-width: 560px; margin: 0; }
.zs-ps-bench-info-hint { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(244,240,231,0.5); }

@media (max-width: 900px) {
  .zs-ps-bench-desk { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 420px) {
  .zs-ps-bench-desk { grid-template-columns: repeat(2, 1fr); }
}

/* ==========================================================================
   07 — WHAT DOES YOUR PRODUCT NEED (INDUSTRY)
   ========================================================================== */

.zs-ps-industry { padding: 110px 0; background: var(--zs-cream); border-top: 1px solid var(--zs-line); }

.zs-ps-industry-inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 44px; align-items: start; }

.zs-ps-industry-rail { list-style: none; margin: 26px 0 0; padding: 0; max-height: 480px; overflow-y: auto; }
.zs-ps-industry-rail-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--zs-line);
  padding: 12px 4px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--zs-charcoal-soft);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  transition: color 180ms var(--zs-ease), padding-left 180ms var(--zs-ease);
}
.zs-ps-industry-rail-btn:hover { padding-left: 8px; color: var(--zs-charcoal); }
.zs-ps-industry-rail-btn.is-active { color: var(--zs-forest); padding-left: 8px; }
.zs-ps-industry-rail-btn.is-active::after { content: "→"; color: var(--zs-gold); }

.zs-ps-industry-scene {
  position: relative;
  border: 1px solid var(--zs-line);
  background: var(--zs-sand);
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.zs-ps-industry-scene img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 12%;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 480ms var(--zs-ease), transform 480ms var(--zs-ease);
}
.zs-ps-industry-scene img.is-active { opacity: 1; transform: none; }

.zs-ps-industry-chips { position: absolute; left: 16px; bottom: 16px; display: flex; gap: 8px; flex-wrap: wrap; max-width: 80%; }
.zs-ps-industry-chip {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 11px;
  border-radius: 999px;
  background: rgba(251,248,241,0.92);
  border: 1px solid var(--zs-gold-line);
  color: var(--zs-forest);
}

@media (max-width: 1180px) {
  .zs-ps-industry-inner { grid-template-columns: 1fr; }
  .zs-ps-industry-rail { max-height: none; }
}

/* ==========================================================================
   08 — FROM MATERIAL TO PACKAGE (PROCESS)
   ========================================================================== */

.zs-ps-process { padding: 110px 0; background: var(--zs-mocha); color: var(--zs-ivory); overflow: hidden; }

.zs-ps-process-track {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.zs-ps-process-track::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 46px;
  height: 1px;
  background: rgba(244,240,231,0.18);
}
.zs-ps-process-step { position: relative; text-align: center; padding-top: 8px; }
.zs-ps-process-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--zs-bg); border: 2px solid rgba(244,240,231,0.35);
  margin: 30px auto 20px;
  transition: border-color 260ms var(--zs-ease), background 260ms var(--zs-ease);
}
.zs-ps-process-step.is-in .zs-ps-process-dot { border-color: var(--zs-gold); background: var(--zs-gold); }
.zs-ps-process-media { width: 84%; margin: 0 auto 14px; aspect-ratio: 1/1; overflow: hidden; border: 1px solid rgba(244,240,231,0.16); }
.zs-ps-process-media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) brightness(0.75); transition: filter 500ms var(--zs-ease); }
.zs-ps-process-step.is-in .zs-ps-process-media img { filter: grayscale(0) brightness(1); }
.zs-ps-process-name { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(244,240,231,0.6); }
.zs-ps-process-step.is-in .zs-ps-process-name { color: var(--zs-gold); }

@media (max-width: 900px) {
  .zs-ps-process-track { grid-template-columns: repeat(3, 1fr); row-gap: 32px; }
  .zs-ps-process-track::before { display: none; }
}
@media (max-width: 420px) {
  .zs-ps-process-track { grid-template-columns: repeat(2, 1fr); }
}

/* ==========================================================================
   09 — FINAL CTA — dimensional transition
   ========================================================================== */

.zs-ps-cta {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--zs-bg);
  color: var(--zs-ivory);
}

.zs-ps-cta-media {
  position: absolute;
  inset: 0;
  background-image: url('/assets/img/02-zs-sealed-corrugated-box.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.16;
  transform: scale(1.15);
  transition: opacity 900ms var(--zs-ease), transform 900ms var(--zs-ease);
}
.zs-ps-cta.is-in .zs-ps-cta-media { opacity: 0.34; transform: scale(1); }

.zs-ps-cta-scrim { position: absolute; inset: 0; background: radial-gradient(60% 60% at 50% 40%, rgba(20,35,29,0.2), rgba(15,26,21,0.92)); }

.zs-ps-cta-inner { position: relative; z-index: 2; max-width: 720px; padding: 0 24px; }
.zs-ps-cta-eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--zs-gold); display: block; margin-bottom: 20px; }
.zs-ps-cta-title { font-family: var(--font-display); font-weight: 800; text-transform: uppercase; font-size: clamp(38px, 6vw, 72px); line-height: 0.98; margin: 0 0 26px; }
.zs-ps-cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 8px; }

@media (max-width: 640px) {
  .zs-ps-cta { min-height: 70vh; }
}