/* ==========================================================
   Sin Guhe · Variant A — "Spec Sheet"
   Paper + signage blue + technical hairlines, a 4-slide
   paginated deck in the spirit of the Checkpoint microsite.
   ========================================================== */

:root {
  --ink:        #0B1F3F;       /* deep signage navy */
  --ink-2:      #16315A;
  --paper:      #FFFFFF;       /* pure white */
  --paper-lite: #FAFBFD;       /* subtle off-white for contrast surfaces */
  --paper-deep: #EEF1F4;
  --steel:      #B9C0C8;
  --steel-dk:   #6F7886;
  --blue:       #1857B8;       /* signage blue */
  --blue-deep:  #0E3F8F;
  --blue-soft:  rgba(24,87,184,0.10);
  --wa:         #25D366;       /* WhatsApp green */
  --wa-deep:    #1FB257;
  --mute:       rgba(11,31,63,0.58);
  --line:       rgba(11,31,63,0.12);
  --line-hd:    rgba(11,31,63,0.28);
  --line-soft:  rgba(11,31,63,0.06);

  --display: "Archivo Black", "Archivo", system-ui, sans-serif;
  --sans:    "Archivo", system-ui, -apple-system, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;
  --cn:      "Noto Sans SC", "Archivo", system-ui, sans-serif;
  --cn-disp: "Noto Sans SC", "Archivo Black", system-ui, sans-serif;

  --top-h:  44px;
  --foot-h: 92px;
  --pad:    20px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  overflow-y: auto;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--blue); color: #fff; }

/* ----------------------------------------------------------
   App shell
   ---------------------------------------------------------- */
.app {
  position: relative;
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  height: 100vh;
  height: 100dvh;
  min-height: 720px;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  isolation: isolate;
  container-type: inline-size;
  /* faint blueprint grid overlay across the entire app */
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px;
}

/* Corner crop-marks — pinned at the four corners of the app */
.app::before, .app::after,
.app .crop-tl, .app .crop-tr {
  content: ""; position: absolute; width: 14px; height: 14px;
  border: 1px solid var(--ink);
  z-index: 40; pointer-events: none;
}
.app::before  { top: 10px;    left: 10px;    border-right: 0; border-bottom: 0; }
.app::after   { bottom: 10px; right: 10px;   border-left: 0;  border-top: 0; }
.app .crop-tl { top: 10px;    right: 10px;   border-left: 0;  border-bottom: 0; }
.app .crop-tr { bottom: 10px; left: 10px;    border-right: 0; border-top: 0; }

/* ----------------------------------------------------------
   Top bar — logo + full legal name
   ---------------------------------------------------------- */
.top-bar {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1080px;
  height: var(--top-h);
  padding: 0 var(--pad);
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px;
  z-index: 30;
  background: linear-gradient(180deg, var(--paper) 70%, rgba(255,255,255,0));
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  text-decoration: none;
  flex: 0 0 auto;
}
.brand-mark {
  width: 22px;
  height: 22px;
  object-fit: contain;
  display: block;
}
.brand-en {
  font-family: var(--display);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}

.progress {
  display: flex;
  gap: 4px;
  flex: 1;
  align-items: center;
  max-width: 240px;
}
.progress .bar {
  flex: 1;
  height: 3px;
  background: var(--line-hd);
  position: relative;
  overflow: hidden;
}
.progress .bar.done { background: var(--ink); }
.progress .bar.active::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--blue);
  transform-origin: left;
  animation: a-progress 0.5s ease-out forwards;
}
@keyframes a-progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }

.counter {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink);
  white-space: nowrap;
}
.counter b { color: var(--blue); font-weight: 700; }

/* ----------------------------------------------------------
   Deck — slides translate horizontally
   ---------------------------------------------------------- */
.deck-wrap { flex: 1; position: relative; overflow: hidden; }
.deck {
  display: flex;
  width: 500%;
  height: 100%;
  transition: transform 0.44s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
.app.booting .deck { transition: none; }

.slide {
  flex: 0 0 20%;
  width: 20%;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.slide-inner {
  position: relative;
  flex: 1;
  display: flex; flex-direction: column;
  padding: calc(var(--top-h) + 18px) var(--pad) calc(var(--foot-h) + 8px);
  gap: 14px;
  min-height: 0;
}

/* ----------------------------------------------------------
   Editorial parts — stamp, headline stack, body
   ---------------------------------------------------------- */
.stamp {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--line-hd);
  background: var(--paper-lite);
  padding: 5px 10px 5px 8px;
  width: fit-content;
  border-radius: 1px;
}
.stamp .d {
  width: 6px; height: 6px; background: var(--blue);
  display: inline-block;
  animation: a-pulse 1.6s ease-in-out infinite;
}
@keyframes a-pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.stamp .sep { opacity: 0.4; }

.h-stack { display: block; margin: 0; }
.h-stack .line {
  display: block;
  font-family: var(--display);
  font-size: clamp(34px, 9.2vw, 56px);
  line-height: 0.95;
  letter-spacing: -0.015em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.06em;
}
.h-stack .line:last-child { margin-bottom: 0; }
.h-stack .line .ink {
  display: inline-block;
  opacity: 0; transform: translateY(20px);
}
.slide.is-active .h-stack .line .ink {
  animation: a-up 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.slide.is-active .h-stack .line:nth-child(1) .ink { animation-delay: 0.15s; }
.slide.is-active .h-stack .line:nth-child(2) .ink { animation-delay: 0.32s; }
.slide.is-active .h-stack .line:nth-child(3) .ink { animation-delay: 0.49s; }
@keyframes a-up {
  0%   { opacity: 0; transform: translateY(20px); }
  60%  { opacity: 1; }
  100% { opacity: 1; transform: translateY(0); }
}

.h-stack .mk {
  background: var(--blue);
  color: #fff;
  padding: 0 0.10em;
  display: inline-block;
  transform-origin: left center;
  transform: scaleX(0);
  opacity: .4;
}
.slide.is-active .h-stack .line:last-child .mk {
  animation: a-mk 0.55s cubic-bezier(0.5,1.55,0.45,1) 0.6s forwards;
}
@keyframes a-mk {
  0%   { transform: scaleX(0);    opacity: .4; }
  55%  { transform: scaleX(1.05); opacity: 1; }
  100% { transform: scaleX(1);    opacity: 1; }
}

.h-cn {
  font-family: var(--cn-disp);
  font-weight: 900;
  font-size: clamp(22px, 5.2vw, 32px);
  line-height: 1.18;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 22px 0 0;
  opacity: 0; transform: translateY(8px);
  transition: opacity .5s ease, transform .5s ease;
}
.slide.is-active .h-cn {
  opacity: 1; transform: none;
  transition-delay: 0.7s;
}
.h-cn .accent { color: var(--blue); }

.h-fact {
  font-family: var(--sans);
  font-size: clamp(14px, 3.4vw, 17px);
  line-height: 1.45;
  color: var(--ink);
  max-width: 42ch;
  margin: 22px 0 0;
  opacity: 0; transform: translateY(8px);
  transition: opacity .5s ease, transform .5s ease;
}
.slide.is-active .h-fact {
  opacity: 1; transform: none;
  transition-delay: 0.7s;
}
.h-fact em {
  font-style: normal;
  font-family: var(--cn);
  font-weight: 700;
  display: block;
  margin-top: 6px;
  font-size: clamp(13px, 3.2vw, 16px);
  color: var(--ink);
  letter-spacing: 0.02em;
}
.h-fact em .accent { color: var(--blue); }

.body {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  max-width: 38ch;
  opacity: 0; transform: translateY(8px);
  transition: opacity .5s ease, transform .5s ease;
}
.slide.is-active .body {
  opacity: 1; transform: none;
  transition-delay: 1.35s;
}
.body em {
  font-family: var(--cn);
  font-style: normal;
  font-weight: 500;
  color: var(--mute);
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

/* ----------------------------------------------------------
   Spec block — a labelled visual area with corner brackets
   and a monospace caption strip beneath
   ---------------------------------------------------------- */
.spec {
  position: relative;
  border: 1px solid var(--ink);
  background: var(--paper-lite);
  overflow: hidden;
  flex: 1;
  min-height: 0;
  display: flex; flex-direction: column;
}
.spec-corners::before,
.spec-corners::after,
.spec-corners .c-tl,
.spec-corners .c-tr {
  content: ""; position: absolute; width: 10px; height: 10px;
  border: 2px solid var(--blue);
  z-index: 4; pointer-events: none;
}
.spec-corners::before  { top: -1px; left: -1px;   border-right: 0; border-bottom: 0; }
.spec-corners::after   { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.spec-corners .c-tl    { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.spec-corners .c-tr    { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }

.spec-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  /* duotone blue — desaturate then tint */
  filter: grayscale(1) contrast(1.04) brightness(1.0);
}
.spec-img::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
      rgba(11,31,63,0.55) 0%,
      rgba(11,31,63,0.30) 30%,
      rgba(24,87,184,0.42) 70%,
      rgba(11,31,63,0.65) 100%);
  mix-blend-mode: multiply;
}
.spec-img-wrap {
  flex: 1;
  position: relative;
  min-height: 0;
  overflow: hidden;
}

.spec-caption {
  border-top: 1px solid var(--line-hd);
  background: var(--paper);
  padding: 6px 10px;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--ink);
  flex: 0 0 auto;
}
.spec-caption .pn { color: var(--blue); font-weight: 700; }
.spec-caption .sep { opacity: 0.4; }
.spec-caption .grow { flex: 1; }

/* Floating dimension labels on top of the spec image */
.dim {
  position: absolute;
  z-index: 5;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: #fff;
  background: var(--ink);
  padding: 3px 7px;
  border-radius: 1px;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
.dim.tl { top: 10px; left: 10px; }
.dim.tr { top: 10px; right: 10px; background: var(--blue); }
.dim.bl { bottom: 10px; left: 10px; }
.dim.br { bottom: 10px; right: 10px; }

/* ----------------------------------------------------------
   Slide 1 — Hero (Alternate 02 · "Product Centerpiece")
   Editorial layout: headline → divider + masthead → boxed product photo.
   The blueprint grid stays — the photo lives inside a paper-lite cell
   that matches inner-page cell language, so the grid frames the box
   without bleeding through the product itself.
   ---------------------------------------------------------- */
.slide-1 .spec { display: none; }

.slide-1 .ed-stage {
  position: absolute;
  inset: 0;
  padding: calc(var(--top-h) + 18px) var(--pad) calc(var(--foot-h) + 8px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.slide-1 .ed-headline { margin: 0; }

/* Centerpiece photo — wrapped in a paper-lite cell with a 1px ink border,
   same vocabulary as the inner-page product cells. Two stacked imgs
   crossfade inside; mix-blend-mode hides their white backgrounds. */
.slide-1 .ed-photo {
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: var(--paper-lite);
}
.slide-1 .ed-photo img {
  position: absolute;
  inset: 16px;
  width: calc(100% - 32px);
  height: calc(100% - 32px);
  object-fit: contain;
  opacity: 0;
  transition: opacity .25s ease;
  mix-blend-mode: multiply;
}
.slide-1 .ed-photo img.is-current { opacity: 1; }

/* Masthead at the foot — CN legal name above EN, hairline rule on top,
   no white box. Reads like a colophon under the centerpiece. */
.slide-1 .ed-mast {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-top: 14px;
  border-top: 1px solid var(--ink);
  color: var(--ink);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .5s ease, transform .5s ease;
}
.slide-1.is-active .ed-mast {
  opacity: 1;
  transform: none;
  transition-delay: 0.55s;
}
.slide-1 .ed-mast .cn {
  font-family: var(--cn-disp);
  font-weight: 900;
  font-size: clamp(14px, 3.6vw, 16px);
  letter-spacing: 0.06em;
  line-height: 1.15;
}
.slide-1 .ed-mast .en {
  font-family: var(--display);
  font-size: clamp(13px, 3.4vw, 14.5px);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1;
}

.spec-meta {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  background: var(--ink);
  color: var(--paper);
}
.spec-meta > div {
  padding: 8px 10px 9px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-right: 1px solid rgba(255,255,255,0.14);
  line-height: 1.4;
}
.spec-meta > div:last-child { border-right: 0; }
.spec-meta .k { color: var(--steel); font-size: 8.5px; display: block; margin-bottom: 2px; opacity: 0.85; }
.spec-meta .v { color: var(--paper); font-weight: 700; }
.spec-meta .v.blue { color: #7DA9F0; }

/* ----------------------------------------------------------
   Slide 2 — Buy / Sell / Repair stack (pure paper typography)
   ---------------------------------------------------------- */
.h-stack.h-numbered .line { padding-left: 0; }
.h-stack.h-numbered .num {
  font-family: var(--mono);
  font-size: 0.30em;
  color: var(--blue);
  letter-spacing: 0.10em;
  vertical-align: 0.6em;
  margin-right: 0.30em;
  font-weight: 700;
}

/* About paragraph block — Founded-in-1991 brand story.
   Sits between the headline and the numerical proof grid.
   Hairline border + paper-lite fill, consistent with inner-page cells. */
.t-about {
  background: var(--paper-lite);
  border: 1px solid var(--ink);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.t-about p {
  margin: 0;
  font-size: clamp(13.5px, 1.5cqi, 15.5px);
  line-height: 1.55;
  color: var(--ink);
}
.t-about p b { font-weight: 700; }
.t-about .t-about-cn {
  font-family: var(--cn);
  padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--ink);
  letter-spacing: 0.01em;
}
.t-about .t-about-cn .accent { color: var(--blue); font-weight: 700; }

/* Trust grid — 2x2 editorial numerals for the credibility slide */
.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
  flex: 0 1 auto;
  min-height: 0;
  width: 100%;
}
.t-cell { aspect-ratio: auto; min-height: 130px; }
.t-cell {
  background: var(--paper-lite);
  padding: 16px 16px 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  min-width: 0;
  position: relative;
}
.t-cell.feat { background: var(--ink); }
.t-num {
  font-family: var(--display);
  font-size: clamp(64px, 16cqi, 140px);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.t-num sup {
  font-size: 0.42em;
  vertical-align: super;
  color: var(--blue);
  margin-left: 0.04em;
  font-weight: 700;
}
.t-cell.feat .t-num { color: var(--paper); }
.t-cell.feat .t-num sup { color: #7DA9F0; }
.t-k {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  display: block;
  margin-top: 8px;
}
.t-cell.feat .t-k { color: var(--paper); }
.t-cn {
  font-family: var(--cn);
  font-weight: 700;
  font-size: 15px;
  color: var(--mute);
  letter-spacing: 0.04em;
  margin-top: 0;
  display: block;
}
.t-cell.feat .t-cn { color: var(--steel); }

/* ----------------------------------------------------------
   Non-hero slides — compact stack so the grid takes the lower half
   ---------------------------------------------------------- */
.slide:not(.slide-1) .slide-inner { gap: 10px; }
.slide:not(.slide-1) .h-stack .line { font-size: clamp(28px, 7.4vw, 44px); }
.slide:not(.slide-1) .h-cn { font-size: clamp(16px, 4vw, 20px); margin-top: 8px; }

/* ----------------------------------------------------------
   Five product categories (2x3 grid; the PDF cell is the only CTA)
   ---------------------------------------------------------- */
.prod-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
  flex: 1;
  min-height: 0;
}
.prod-cell {
  background: var(--paper-lite);
  padding: 10px 10px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 0;
  min-height: 0;
  cursor: default;
  overflow: hidden;
}
.prod-img {
  flex: 1;
  min-height: 0;
  max-width: 86%;
  max-height: 100%;
  object-fit: contain;
  display: block;
  mix-blend-mode: multiply;
}
.prod-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  flex: 0 0 auto;
  text-align: center;
  min-width: 0;
  width: 100%;
}
.prod-tag {
  font-family: var(--display);
  font-size: clamp(12px, 2.8cqi, 16px);
  text-transform: uppercase;
  letter-spacing: -0.005em;
  line-height: 1.05;
  color: var(--ink);
}
.prod-tt {
  font-family: var(--cn);
  font-weight: 900;
  font-size: clamp(13px, 3cqi, 16px);
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* PDF download cell — the one interactive element on this slide */
.prod-cta {
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  cursor: pointer;
  transition: background .15s ease;
  justify-content: center;
}
@media (hover: hover) { .prod-cta:hover { background: var(--blue); } }
.prod-cta-icon {
  font-family: var(--display);
  font-size: clamp(22px, 5cqi, 32px);
  letter-spacing: 0.05em;
  color: #7DA9F0;
  line-height: 1;
}
.prod-cta .prod-tag { color: var(--paper); }
.prod-cta .prod-tt { color: #7DA9F0; }

/* ----------------------------------------------------------
   Four services (2x2 grid)
   ---------------------------------------------------------- */

.svc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
  flex: 1;
  min-height: 0;
}
.svc-cell {
  background: var(--paper-lite);
  padding: 16px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  position: relative;
  overflow: hidden;
}
.svc-cell.feat { background: var(--ink); }
.svc-num {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--blue);
  font-weight: 700;
}
.svc-cell.feat .svc-num { color: #7DA9F0; }
.svc-tag {
  font-family: var(--display);
  font-size: clamp(17px, 4.6cqi, 28px);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--ink);
  margin-top: 4px;
}
.svc-cell.feat .svc-tag { color: var(--paper); }
.svc-tt {
  font-family: var(--cn);
  font-weight: 900;
  font-size: clamp(18px, 4.6cqi, 24px);
  letter-spacing: 0.04em;
  color: var(--blue);
  margin-top: -2px;
}
.svc-cell.feat .svc-tt { color: #7DA9F0; }
.svc-desc {
  margin: auto 0 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink);
}
.svc-cell.feat .svc-desc { color: var(--paper); }

/* ----------------------------------------------------------
   Slide 4 — Visit · big tap rows + simple branch list
   ---------------------------------------------------------- */

.tap-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tap-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 18px;
  border: 1px solid var(--ink);
  background: var(--paper-lite);
  text-decoration: none;
  color: var(--ink);
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
@media (hover: hover) { .tap-row:hover { background: var(--ink); color: var(--paper); transform: translateY(-1px); } }
.tap-row.wa { background: var(--wa); border-color: var(--wa); color: #fff; }
@media (hover: hover) { .tap-row.wa:hover { background: var(--wa-deep); border-color: var(--wa-deep); color: #fff; } }
.tap-k {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
}
.tap-v {
  font-family: var(--display);
  font-size: clamp(20px, 5cqi, 28px);
  letter-spacing: 0.005em;
  font-weight: 700;
  white-space: nowrap;
}

.loc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
  flex: 1;
  min-height: 0;
}
.loc-list li {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--paper-lite);
  min-width: 0;
  min-height: 0;
}
.loc-list li.hq { background: var(--ink); }
.loc-list li.hq .nm { color: var(--paper); }
.loc-list li.hq .nm em { color: var(--steel); }
.loc-list li.hq .lm { color: var(--paper); }
.loc-list li.hq .dir { color: #7DA9F0; border-bottom-color: #7DA9F0; }
@media (hover: hover) { .loc-list li.hq .dir:hover { color: var(--paper); border-bottom-color: var(--paper); } }
.loc-list .nm {
  font-family: var(--display);
  font-size: clamp(18px, 4.2cqi, 22px);
  text-transform: uppercase;
  letter-spacing: 0.005em;
  line-height: 1.1;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.loc-list .nm em {
  font-family: var(--cn);
  font-style: normal;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: none;
}
.loc-list .lm {
  font-family: var(--cn);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-top: 4px;
}
.loc-list .dir {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--blue);
  font-weight: 700;
  white-space: nowrap;
  border-bottom: 1px solid var(--blue);
  padding-bottom: 2px;
  text-decoration: none;
  align-self: flex-end;
  margin-top: auto;
}
@media (hover: hover) { .loc-list .dir:hover { color: var(--ink); border-bottom-color: var(--ink); } }

/* ----------------------------------------------------------
   Foot — Back / Next + final-slide CTAs
   ---------------------------------------------------------- */
.foot {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1080px;
  height: var(--foot-h);
  padding: 0 var(--pad);
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
  z-index: 30;
  background: linear-gradient(0deg, var(--paper) 60%, rgba(255,255,255,0));
}
.nav-btn {
  appearance: none;
  background: var(--paper-lite);
  border: 1px solid var(--ink);
  color: var(--ink);
  padding: 13px 16px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 1px;
  transition: background .15s ease, transform .15s ease;
}
@media (hover: hover) { .nav-btn:hover { background: var(--paper-deep); transform: translateY(-1px); } }
.nav-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.nav-btn .ic { display: inline-flex; }

.nav-next {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: 15px 22px;
  font-family: var(--display);
  font-size: 15px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 10px;
  border-radius: 1px;
  transition: background .15s ease, transform .15s ease;
  position: relative;
}
.nav-next::before {
  content: ""; position: absolute;
  top: 2px; right: 2px; bottom: 2px;
  border-right: 2px solid var(--blue);
  width: 8px;
  pointer-events: none;
  opacity: 0;
}
@media (hover: hover) { .nav-next:hover { background: var(--blue); transform: translateY(-1px); } }
.nav-next .ic { color: currentColor; }

.foot-cta {
  display: flex; gap: 8px; flex: 1;
  justify-content: flex-end;
  align-items: stretch;
}
.cta-wa, .cta-loc {
  border: 1px solid var(--ink);
  background: var(--paper-lite);
  color: var(--ink);
  padding: 14px 18px;
  font-family: var(--display);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 10px;
  border-radius: 1px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, transform .15s, color .15s;
}
.cta-wa {
  background: var(--wa);
  color: #fff;
  border-color: var(--wa);
  flex: 1;
  justify-content: center;
}
@media (hover: hover) { .cta-wa:hover { background: var(--wa-deep); border-color: var(--wa-deep); transform: translateY(-1px); } }
@media (hover: hover) { .cta-loc:hover { background: var(--ink); color: var(--paper); transform: translateY(-1px); } }
.cta-wa .ic, .cta-loc .ic { display: inline-flex; }

/* ----------------------------------------------------------
   Desktop / wider container — bump scales, keep paper feel
   ---------------------------------------------------------- */
@media (min-width: 700px) {
  :root { --top-h: 56px; --foot-h: 108px; --pad: clamp(28px, 4cqi, 48px); }
  body { background: #0B121F; }
  .app { box-shadow: 0 0 0 1px rgba(255,255,255,0.06), 0 30px 80px -20px rgba(0,0,0,0.4); }
  .h-stack .line { font-size: clamp(48px, 6.6cqi, 84px); }
  .h-cn { font-size: clamp(22px, 3cqi, 32px); }
  .body { font-size: clamp(15px, 1.6cqi, 18px); }
  .progress { max-width: 280px; }
  .prod-grid { grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, minmax(0, 1fr)); }
}

/* Reduced motion — collapse all animations */
@media (prefers-reduced-motion: reduce) {
  .deck { transition: none; }
  .h-stack .line .ink,
  .h-stack .mk,
  .h-cn, .body {
    opacity: 1 !important; transform: none !important; animation: none !important;
  }
}