/* ============================================================
   Casa Quipu — Web · Phase 2 styles
   Companion to Web.html — uses the same parchment tokens.
   ============================================================ */

/* ============================================================
   1) ANATOMY SCHEMATIC
   ============================================================ */
.anatomy {
  background: var(--bg);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  position: relative;
  display: flex;
  align-items: stretch;
  overflow: hidden;
}
.anatomy-inner {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  padding: var(--s-7) var(--s-7) var(--s-6);
  gap: var(--s-5);
}
@media (max-width: 720px) {
  .anatomy-inner { padding: var(--s-6) var(--s-5); }
}

.anatomy-head {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  align-items: center;
  max-width: none;
  margin: 0 auto;
}
.anatomy-head .t-display-l {
  font-size: clamp(28px, 4.2vw, 56px);
  white-space: nowrap;
  line-height: 1.0;
}
@media (max-width: 720px) {
  .anatomy-head .t-display-l { white-space: normal; font-size: clamp(28px, 6vw, 40px); }
}
.anatomy-head-body {
  font-size: var(--t-body-m);
  color: var(--ink-dim);
  margin: 0;
}
.anatomy-stage {
  position: relative;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  aspect-ratio: 720 / 820;
}
@media (max-width: 720px) {
  .anatomy-stage { aspect-ratio: 360 / 720; max-width: 100%; }
}

.anatomy-wireframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.anatomy-wireframe * {
  stroke: var(--ink);
  stroke-width: 1;
  fill: none;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.62;
}
.anatomy-wireframe .ink-fill { fill: var(--border); stroke: none; opacity: 1; }

/* Markers */
.anatomy-marker {
  position: absolute;
  width: 14px;
  height: 14px;
  margin-left: -7px;
  margin-top: -7px;
  cursor: pointer;
  z-index: 4;
  background: transparent;
  border: 0;
  padding: 0;
}
.anatomy-marker::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ink);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--bg);
  transition: background var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}
.anatomy-marker::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--ink);
  animation: anatomy-pulse 2.2s cubic-bezier(0.22, 1, 0.36, 1) infinite;
}
@keyframes anatomy-pulse {
  0%   { transform: scale(1);   opacity: 0.9; }
  70%  { transform: scale(2.6); opacity: 0;   }
  100% { transform: scale(2.6); opacity: 0;   }
}
.anatomy-marker:hover::before,
.anatomy-marker.is-active::before {
  background: var(--ink-dim);
  transform: scale(1.15);
}
.anatomy-marker:focus-visible {
  outline: none;
}
.anatomy-marker:focus-visible::before {
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--ink);
}

/* Hover label */
.anatomy-label {
  position: absolute;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  line-height: 1;
  color: var(--ink);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
  z-index: 5;
  letter-spacing: var(--ls-display-italic);
  padding: 4px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
}
.anatomy-marker:hover + .anatomy-label,
.anatomy-marker.is-active + .anatomy-label {
  opacity: 1;
  transform: translateY(0);
}

.anatomy-coda {
  text-align: center;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(18px, 1.8vw, 22px);
  color: var(--ink-dim);
  letter-spacing: var(--ls-display-italic);
  margin: 0 auto;
}

/* Detail panel — slides in from right (desktop) or up from bottom (mobile) */
.anatomy-panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: min(440px, 92vw);
  background: var(--bg);
  border-left: 1px solid var(--ink);
  z-index: 200;
  transform: translateX(100%);
  transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.anatomy-panel.is-open { transform: translateX(0); }
.anatomy-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-5) var(--s-6);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.anatomy-panel-num {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-s);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink);
}
.anatomy-panel-close {
  background: transparent;
  border: 1px solid var(--border);
  width: 32px;
  height: 32px;
  border-radius: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}
.anatomy-panel-close:hover { border-color: var(--ink); color: var(--ink); }
.anatomy-panel-body {
  padding: var(--s-7) var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
  overflow-y: auto;
  flex: 1;
}
.anatomy-panel-eyebrow {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-l);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink);
}
.anatomy-panel-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.05;
  letter-spacing: var(--ls-display-italic);
  color: var(--ink);
  margin: 0;
  text-wrap: balance;
}
.anatomy-panel-body p {
  font-size: var(--t-body-m);
  line-height: 1.6;
  color: var(--ink-dim);
  margin: 0;
}
.anatomy-panel-meta {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: var(--t-ui-s);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink);
  padding-top: var(--s-5);
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.anatomy-scrim {
  position: fixed;
  inset: 0;
  background: rgba(13, 12, 10, 0.85);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 420ms cubic-bezier(0.22, 1, 0.36, 1);
}
.anatomy-scrim.is-visible { opacity: 1; pointer-events: auto; }

@media (max-width: 720px) {
  .anatomy-panel {
    top: auto;
    right: 0;
    left: 0;
    width: 100%;
    height: min(80vh, 600px);
    border-left: 0;
    border-top: 1px solid var(--ink);
    transform: translateY(100%);
  }
  .anatomy-panel.is-open { transform: translateY(0); }
}

/* ============================================================
   2) SITE-TYPE SKETCHES RAIL
   ============================================================ */
.sketches-wrap {
  margin-top: var(--s-8);
  position: relative;
}
.sketches-rail {
  display: flex;
  gap: var(--s-5);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 4px 4px var(--s-5);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.sketches-rail::-webkit-scrollbar { height: 4px; }
.sketches-rail::-webkit-scrollbar-thumb { background: var(--border); }
.sketches-rail::-webkit-scrollbar-track { background: transparent; }

.sketch-card {
  flex: 0 0 380px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}
@media (max-width: 720px) {
  .sketch-card { flex: 0 0 86vw; }
}

.sketch-frame {
  background: var(--bg);
  border: 1px solid var(--ink);
  aspect-ratio: 4 / 5;
  position: relative;
  overflow: hidden;
}
.sketch-frame svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.sketch-frame svg * {
  stroke: var(--ink);
  stroke-width: 1;
  fill: none;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0;
  transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}
.sketch-frame.is-drawn svg * { opacity: 0.72; }

/* Pulsing CTA cursor — copper dot that fades in/out after the frame finishes drawing. */
.sketch-frame svg .sketch-pulse {
  stroke: var(--ink);
  fill: var(--ink);
  opacity: 0;
  stroke-dasharray: none;
  stroke-dashoffset: 0;
  transition: opacity 0.4s var(--ease);
}
.sketch-frame.is-drawn svg .sketch-pulse {
  animation: sketchPulse 1.6s ease-in-out infinite;
  animation-delay: 1.4s;
}
@keyframes sketchPulse {
  0%, 100% { opacity: 0.25; }
  50%      { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .sketch-frame svg .sketch-pulse { opacity: 0.7; animation: none; }
}

.sketch-meta {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.sketch-label {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-m);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink-dim);
}
.sketch-line {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: var(--ls-display-italic);
  color: var(--ink);
}

.sketches-foot {
  margin-top: var(--s-6);
  text-align: center;
  font-size: var(--t-body-m);
  color: var(--ink-dim);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   3) PERFORMANCE SCOREBOARD — comparison table
   ============================================================ */
.score-intro {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: var(--t-body-l);
  line-height: var(--lh-body);
  color: var(--ink-dim);
  max-width: 720px;
  margin: var(--s-5) auto 0;
  text-wrap: pretty;
}

.score-table {
  margin-top: var(--s-9);
  border-top: 1px solid var(--ink);
}

/* Shared 3-column grid for header + rows.
   On desktop: meta column flexes; value columns fixed. */
.score-table-head,
.score-table-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px 160px;
  align-items: baseline;
  gap: var(--s-6);
}

.score-table-head {
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--border);
}
.score-table-head-label {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-s);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  text-align: center;
}
.score-table-head-label--ours { color: var(--ink); }
.score-table-head-label--dim  { color: var(--ink-dim); }

.score-table-row {
  padding: var(--s-6) 0;
  border-bottom: 1px solid var(--border);
}
.score-table-row:last-child { border-bottom: 0; }

.score-table-meta {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.score-table-index {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  font-variant-numeric: lining-nums tabular-nums;
}
.score-table-label {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-m);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink);
}
.score-table-desc {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: var(--t-body-m);
  line-height: var(--lh-body);
  color: var(--ink-dim);
  margin: var(--s-2) 0 0;
  max-width: 56ch;
  text-wrap: pretty;
}

.score-table-value {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(56px, 6vw, 80px);
  line-height: 1;
  text-align: center;
  font-variant-numeric: lining-nums tabular-nums;
  align-self: center;
}
.score-table-value--ours { color: var(--ink); }
.score-table-value--dim  { color: var(--ink-dim); }

@media (max-width: 720px) {
  .score-table { margin-top: var(--s-7); }
  .score-table-head,
  .score-table-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--s-4);
  }
  .score-table-head-spacer { display: none; }
  .score-table-head { padding: var(--s-3) 0; }
  .score-table-row {
    grid-template-areas:
      "meta  meta"
      "ours  dim";
    padding: var(--s-5) 0;
  }
  .score-table-meta { grid-area: meta; }
  .score-table-value--ours { grid-area: ours; }
  .score-table-value--dim  { grid-area: dim; }
  .score-table-value { font-size: 56px; text-align: left; }
}

.score-foot {
  text-align: center;
  margin-top: var(--s-8);
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
  align-items: center;
}
.score-foot-line {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  color: var(--ink-dim);
  max-width: 620px;
  letter-spacing: var(--ls-display-italic);
}
.score-method {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  text-align: center;
  margin: var(--s-7) auto 0;
  max-width: 560px;
  line-height: 1.6;
}
.score-foot-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
}
.score-foot-eyebrow {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-l);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink);
}

/* Modal — Lighthouse audit form */
.modal-scrim {
  position: fixed;
  inset: 0;
  background: rgba(13, 12, 10, 0.85);
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms cubic-bezier(0.22, 1, 0.36, 1);
}
.modal-scrim.is-open { opacity: 1; pointer-events: auto; }
.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -48%);
  width: min(480px, 92vw);
  background: var(--bg);
  border: 1px solid var(--ink);
  z-index: 301;
  opacity: 0;
  pointer-events: none;
  transition: opacity 320ms cubic-bezier(0.22, 1, 0.36, 1), transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}
.modal.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%);
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--s-5) var(--s-6);
  border-bottom: 1px solid var(--border);
}
.modal-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 28px;
  line-height: 1;
  letter-spacing: var(--ls-display-italic);
  margin: 0;
}
.modal-body {
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}
.modal-body p {
  font-size: var(--t-body-s);
  color: var(--ink-dim);
  margin: 0 0 var(--s-3);
}
.field {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.field label {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: var(--t-ui-s);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink-dim);
}
.field input {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--ink-dim);
  padding: 10px 0;
  font-family: var(--font-body);
  font-size: var(--t-body-m);
  color: var(--ink);
  border-radius: 0;
  transition: border-color var(--dur-base) var(--ease);
}
.field input:focus {
  outline: none;
  border-bottom: 1px solid var(--ink);
}
.modal-body button {
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--ink);
  padding: 14px 22px;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-l);
  letter-spacing: var(--ls-ui-tight);
  text-transform: uppercase;
  border-radius: 0;
  cursor: pointer;
  margin-top: var(--s-3);
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}
.modal-body button:hover {
  background: var(--ink);
  border-color: var(--ink);
}
.modal-close {
  background: transparent;
  border: 1px solid var(--border);
  width: 32px;
  height: 32px;
  cursor: pointer;
  transition: border-color var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}
.modal-close:hover { border-color: var(--ink); color: var(--ink); }
.modal-success {
  padding: var(--s-7) var(--s-6);
  text-align: center;
  display: none;
  flex-direction: column;
  gap: var(--s-4);
  align-items: center;
}
.modal.is-success .modal-success { display: flex; }
.modal.is-success .modal-body { display: none; }

/* ============================================================
   4) DEMOS SECTION (A, B, C, D)
   ============================================================ */
.demos {
  display: flex;
  flex-direction: column;
  gap: var(--s-10);
}
.demo-head {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  margin-bottom: var(--s-7);
}
.demo-eyebrow {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-l);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink);
}
.demo-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(36px, 4.5vw, 64px);
  line-height: 1.0;
  letter-spacing: var(--ls-display-italic);
  color: var(--ink);
  margin: 0;
  text-wrap: balance;
  max-width: 18ch;
}

/* ---------- 4A) Code becoming design ---------- */
.demo-code {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--ink);
}
@media (max-width: 860px) {
  .demo-code { grid-template-columns: 1fr; }
}
.code-pane {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  padding: var(--s-5);
  min-height: 520px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink);
  overflow: hidden;
  position: relative;
  white-space: pre-wrap;
  word-break: break-word;
}
@media (max-width: 860px) {
  .code-pane { border-right: 0; border-bottom: 1px solid var(--border); }
}
.code-pane .code-line {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 8px;
  white-space: pre-wrap;
  min-height: 1.65em;
}
.code-pane .code-ln {
  color: var(--border);
  font-family: inherit;
  text-align: right;
  user-select: none;
}
.code-pane .tok-tag   { color: var(--ink-dim); }
.code-pane .tok-attr  { color: var(--ink-dim); }
.code-pane .tok-str   { color: var(--ink-dim); }
.code-pane .tok-com   { color: var(--ink-dim); font-style: italic; }
.code-pane .tok-prop  { color: var(--ink); }
.code-pane .tok-val   { color: var(--ink); }
.code-caret {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--ink);
  vertical-align: text-bottom;
  margin-left: 1px;
  animation: code-caret-blink 0.9s steps(2, end) infinite;
}
@keyframes code-caret-blink {
  0%, 50%   { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}

.render-pane {
  background: var(--bg);
  padding: 0;
  min-height: 520px;
  overflow: hidden;
  position: relative;
}
.render-pane-inner {
  width: 100%;
  height: 100%;
  min-height: 520px;
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.rp-hero        { background: var(--bg-surface); border: 1px solid var(--border); aspect-ratio: 16/8; position: relative; opacity: 0; transition: opacity 0.4s var(--ease); }
.rp-hero.is-on  { opacity: 1; }
.rp-hero::after {
  content: "";
  position: absolute;
  inset: 14%;
  background: radial-gradient(ellipse at 30% 40%, var(--bg-surface) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 60%, var(--border) 0%, transparent 70%);
  opacity: 0.7;
}
.rp-title       { font-family: var(--font-display); font-style: italic; font-weight: 300; font-size: 32px; line-height: 1; color: var(--ink); letter-spacing: var(--ls-display-italic); opacity: 0; transition: opacity 0.4s var(--ease); }
.rp-title.is-on { opacity: 1; }
.rp-sub         { font-family: var(--font-body); font-size: 13px; color: var(--ink-dim); opacity: 0; transition: opacity 0.4s var(--ease); }
.rp-sub.is-on   { opacity: 1; }
.rp-cta         { align-self: flex-start; background: var(--ink); color: var(--bg); border: 0; padding: 10px 18px; font-family: var(--font-ui); font-weight: 700; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; opacity: 0; transition: opacity 0.4s var(--ease); }
.rp-cta.is-on   { opacity: 1; }
.rp-divider     { height: 1px; background: var(--border); opacity: 0; transition: opacity 0.4s var(--ease); }
.rp-divider.is-on { opacity: 1; }
.rp-menu-label  { font-family: var(--font-ui); font-weight: 700; font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim); opacity: 0; transition: opacity 0.4s var(--ease); }
.rp-menu-label.is-on { opacity: 1; }
.rp-menu-item   { display: flex; justify-content: space-between; font-family: var(--font-body); font-weight: 300; font-size: 12px; color: var(--ink); padding: 4px 0; border-bottom: 1px solid var(--border); opacity: 0; transition: opacity 0.4s var(--ease); }
.rp-menu-item.is-on { opacity: 1; }
.rp-menu-item span:last-child { color: var(--ink); font-weight: 500; font-size: 11px; }

.demo-code-controls {
  display: flex;
  gap: var(--s-4);
  margin-top: var(--s-5);
  align-items: center;
  flex-wrap: wrap;
}
.demo-code-coda {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  color: var(--ink-dim);
  letter-spacing: var(--ls-display-italic);
}

.btn-line {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 12px 22px;
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--ink);
  border-radius: 0;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-l);
  letter-spacing: var(--ls-ui-tight);
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}
.btn-line:hover { background: var(--ink); border-color: var(--ink); }
.btn-line[disabled] { opacity: 0.4; cursor: not-allowed; }
.btn-line--ghost {
  background: transparent;
  color: var(--ink);
}
.btn-line--ghost:hover { background: var(--ink); color: var(--bg); }

/* ---------- 4B) Type-your-domain mockup ---------- */
.demo-mockup-form {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--s-5);
  max-width: 800px;
  align-items: end;
}
@media (max-width: 720px) {
  .demo-mockup-form { grid-template-columns: 1fr; }
}
.demo-mockup-field {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.demo-mockup-field label {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: var(--t-ui-s);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink-dim);
}
.demo-mockup-field input,
.demo-mockup-field select {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--ink-dim);
  padding: 14px 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.2vw, 28px);
  color: var(--ink);
  letter-spacing: var(--ls-display-italic);
  border-radius: 0;
  appearance: none;
  background-image: none;
}
.demo-mockup-field input::placeholder {
  color: var(--ink-dim);
  font-style: italic;
}
.demo-mockup-field input:focus,
.demo-mockup-field select:focus {
  outline: none;
  border-bottom-color: var(--ink);
}
.demo-mockup-field--select {
  position: relative;
}
.demo-mockup-field--select::after {
  content: "↓";
  position: absolute;
  right: 0;
  bottom: 18px;
  font-family: var(--font-ui);
  color: var(--ink-dim);
  pointer-events: none;
}
.demo-mockup-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--ink);
  padding: 16px 24px;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-l);
  letter-spacing: var(--ls-ui-tight);
  text-transform: uppercase;
  border-radius: 0;
  cursor: pointer;
  margin-top: var(--s-6);
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}
.demo-mockup-cta:hover { background: var(--ink); border-color: var(--ink); }

.demo-mockup-loader {
  margin-top: var(--s-7);
  height: 80px;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--s-3);
}
.demo-mockup-loader.is-on { display: flex; }
.loader-label {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: var(--t-ui-s);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink-dim);
}
.loader-cord {
  width: 180px;
  height: 24px;
}
.loader-cord path {
  stroke: var(--ink);
  stroke-width: 1.2;
  fill: none;
  stroke-dasharray: 4 6;
  animation: loader-cord 1.4s linear infinite;
}
@keyframes loader-cord {
  0%   { stroke-dashoffset: 20; }
  100% { stroke-dashoffset: 0; }
}
.loader-cord ellipse {
  fill: var(--ink);
  opacity: 0.85;
  transform-origin: center;
  animation: loader-knot 1.4s cubic-bezier(0.22, 1, 0.36, 1) infinite;
}
@keyframes loader-knot {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.3); }
}

.demo-mockup-output {
  margin-top: var(--s-7);
  display: none;
}
.demo-mockup-output.is-on { display: block; }
.demo-mockup-browser {
  border: 1px solid var(--ink);
  background: var(--bg);
}
.demo-mockup-browser .browser-chrome { padding: 10px 14px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.demo-mockup-canvas {
  height: 500px;
  overflow-y: auto;
  background: var(--bg);
}
.demo-mockup-canvas iframe,
.demo-mockup-canvas .mockup-inner {
  width: 100%;
  border: 0;
  display: block;
}
.demo-mockup-canvas .mockup-inner { min-height: 500px; padding: var(--s-5); }
.demo-mockup-foot {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s-5);
  margin-top: var(--s-4);
  flex-wrap: wrap;
}
.demo-mockup-foot-line {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-dim);
}

/* The mockup itself — minimal embedded "site" rendered inline */
.mk { font-family: var(--font-body); color: var(--ink); display: flex; flex-direction: column; gap: 14px; }
.mk-eyebrow { font-family: var(--font-ui); font-weight: 700; font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink); }
.mk-title   { font-family: var(--font-display); font-style: italic; font-weight: 300; font-size: clamp(36px, 4.5vw, 56px); line-height: 1.0; letter-spacing: var(--ls-display-italic); margin: 0; }
.mk-sub     { font-size: 14px; color: var(--ink-dim); max-width: 60ch; }
.mk-cta     { align-self: flex-start; background: var(--ink); color: var(--bg); padding: 10px 18px; font-family: var(--font-ui); font-weight: 700; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; }
.mk-img     { background: var(--bg-surface); border: 1px solid var(--border); aspect-ratio: 16/8; position: relative; }
.mk-img::after { content:""; position:absolute; inset:14%; background: radial-gradient(ellipse at 30% 40%, var(--bg-surface) 0%, transparent 60%), radial-gradient(ellipse at 70% 60%, var(--border) 0%, transparent 70%); opacity:.7; }
.mk-grid    { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mk-card    { background: var(--bg-surface); border: 1px solid var(--border); aspect-ratio: 1/1; position: relative; }
.mk-row     { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.mk-row span:last-child { color: var(--ink); font-weight: 500; font-size: 12px; }
.mk-rule    { height: 1px; background: var(--border); }
.mk-foot    { font-family: var(--font-ui); font-weight: 600; font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim); padding-top: 12px; border-top: 1px solid var(--border); }

/* ---------- 4C) Wireframe ↔ Finished slider ---------- */
.demo-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--ink);
  background: var(--bg);
  overflow: hidden;
  user-select: none;
  touch-action: none;
}
.demo-slider-side {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
}
.demo-slider-wire { background: var(--bg); }
.demo-slider-fin  {
  background: var(--bg);
  clip-path: inset(0 0 0 50%);
}
.demo-slider-wire svg { width: 100%; height: 100%; display: block; padding: 24px; }
.demo-slider-wire svg * {
  stroke: var(--ink);
  stroke-width: 1;
  fill: none;
  stroke-linecap: round;
  opacity: 0.72;
  vector-effect: non-scaling-stroke;
}
.demo-slider-fin .mk { padding: 24px; height: 100%; box-sizing: border-box; overflow: hidden; }
.demo-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--ink);
  transform: translateX(-0.5px);
  cursor: ew-resize;
  z-index: 5;
}
.demo-slider-handle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 56px;
  background: var(--bg);
  border: 1px solid var(--ink);
}
.demo-slider-handle::after {
  content: "·  ·";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 12px;
  color: var(--ink);
  letter-spacing: 0.2em;
}
.demo-slider-corner {
  position: absolute;
  top: 12px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  background: var(--bg);
  padding: 4px 8px;
  border: 1px solid var(--border);
  z-index: 4;
}
.demo-slider-corner--left  { left: 12px; }
.demo-slider-corner--right { right: 12px; }

.demo-slider-caption {
  margin-top: var(--s-4);
  text-align: center;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  color: var(--ink-dim);
  letter-spacing: var(--ls-display-italic);
}

/* ---------- 4D) Mini-game homepage builder ---------- */
.demo-game {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--s-5);
  border: 1px solid var(--ink);
  min-height: 560px;
}
@media (max-width: 860px) {
  .demo-game { grid-template-columns: 1fr; }
}
.game-sidebar {
  background: var(--bg-surface);
  padding: var(--s-5);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
@media (max-width: 860px) {
  .game-sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
}
.game-sidebar-head {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--t-ui-s);
  letter-spacing: var(--ls-ui);
  text-transform: uppercase;
  color: var(--ink-dim);
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--border);
}

.game-block {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: var(--s-4);
  cursor: grab;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  transition: border-color var(--dur-base) var(--ease), background var(--dur-base) var(--ease);
  min-height: 60px;
}
.game-block:hover { border-color: var(--ink); }
.game-block:active { cursor: grabbing; }
.game-block.is-dragging { opacity: 0.4; }
.game-block svg {
  flex-shrink: 0;
  width: 44px;
  height: 32px;
}
.game-block svg * { stroke: var(--ink); stroke-width: 1; fill: none; opacity: 0.7; vector-effect: non-scaling-stroke; }
.game-block-label {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}

.game-workspace {
  position: relative;
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
}
.game-canvas {
  flex: 1;
  border: 1px dashed var(--border);
  padding: var(--s-4);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  background: var(--bg);
  position: relative;
  min-height: 320px;
}
.game-canvas.is-drop-target { border: 1px dashed var(--ink); background: var(--bg-surface); }
.game-canvas.is-empty::before {
  content: attr(data-placeholder);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 20px;
  color: var(--ink-dim);
  letter-spacing: var(--ls-display-italic);
  text-align: center;
  pointer-events: none;
}

.game-piece {
  border: 1px solid var(--ink);
  padding: var(--s-4);
  background: var(--bg);
  display: flex;
  align-items: center;
  gap: var(--s-3);
  position: relative;
  cursor: grab;
  transition: border-color var(--dur-base) var(--ease);
}
.game-piece:hover { border-color: var(--ink); }
.game-piece.is-dragging { opacity: 0.4; }
.game-piece svg {
  flex: 0 0 60px;
  height: 40px;
}
.game-piece svg * { stroke: var(--ink); stroke-width: 1; fill: none; opacity: 0.7; vector-effect: non-scaling-stroke; }
.game-piece-label {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.game-piece-remove {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  width: 24px;
  height: 24px;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 12px;
  line-height: 1;
  color: var(--ink-dim);
  transition: border-color var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}
.game-piece-remove:hover { border-color: var(--ink); color: var(--ink); }

.game-piece.is-finished {
  border: 1px solid var(--ink);
  padding: var(--s-4);
  cursor: default;
}
.game-piece.is-finished svg { display: none; }
.game-piece.is-finished .game-piece-remove { display: none; }
.game-piece.is-finished .game-piece-label { display: none; }

.game-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-4) var(--s-5);
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
}
@media (max-width: 860px) {
  .game-foot { flex-direction: column; align-items: stretch; }
}
.game-timer {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 36px;
  line-height: 1;
  color: var(--ink);
  letter-spacing: var(--ls-display-italic);
  font-variant-numeric: tabular-nums;
}
.game-timer.is-low { color: var(--ink); }
.game-actions { display: flex; gap: var(--s-3); flex-wrap: wrap; }

.game-result {
  margin-top: var(--s-5);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  align-items: center;
}
.game-result-line {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  color: var(--ink);
  letter-spacing: var(--ls-display-italic);
  max-width: 560px;
}

/* Reduced motion overrides */
@media (prefers-reduced-motion: reduce) {
  .anatomy-marker::after { animation: none; }
  .loader-cord path { animation: none; }
  .loader-cord ellipse { animation: none; }
  .code-caret { animation: none; }
  .sketch-frame svg * { transition: none; stroke-dashoffset: 0; }
  .anatomy-panel, .modal, .modal-scrim, .anatomy-scrim { transition-duration: 1ms; }
}

/* ============================================================
   MOBILE PASS — touch targets, density, aspect ratios
   ============================================================ */
@media (max-width: 720px) {

  /* Safety: prevent stray horizontal scroll */
  html, body { overflow-x: hidden; }
  body { -webkit-text-size-adjust: 100%; }

  /* Anatomy markers — expand the touch hit area without growing the visual dot. */
  .anatomy-marker {
    width: 44px;
    height: 44px;
    margin-left: -22px;
    margin-top: -22px;
  }
  .anatomy-marker::before {
    inset: 15px;          /* keeps the visible dot at 14px inside the 44px button */
  }
  .anatomy-marker::after {
    inset: 15px;
  }
  .anatomy-label {
    font-size: 14px;
    padding: 3px 8px;
  }

  /* Anatomy panel — full width, taller, with safer scroll */
  .anatomy-panel-body { padding: var(--s-6) var(--s-5); }
  .anatomy-panel-head { padding: var(--s-4) var(--s-5); }

  /* Sketches rail — slightly tighter labels */
  .sketch-card { gap: var(--s-3); }
  .sketch-line { font-size: 18px; }

  /* Scoreboard — tighten value type on narrower screens */
  .score-table-value { font-size: 48px; }
  .score-intro { font-size: var(--t-body-m); }

  /* Modal — better padding on small screens */
  .modal-body { padding: var(--s-5); gap: var(--s-3); }
  .modal-head { padding: var(--s-4) var(--s-5); }
  .modal-title { font-size: 22px; }
  .modal-body button { padding: 16px 18px; min-height: 48px; }
  .field input { padding: 12px 0; min-height: 44px; }

  /* Demo section — reduce stack gap so it doesn't feel sparse on mobile */
  .demos { gap: var(--s-8); }
  .demo-head { margin-bottom: var(--s-5); gap: var(--s-3); }
  .demo-title { font-size: clamp(28px, 7vw, 40px); }
  .demo-eyebrow { font-size: 12px; letter-spacing: 0.14em; }

  /* Demo A — code/render panes shrink to fit phones */
  .code-pane    { min-height: 360px; font-size: 11.5px; padding: var(--s-4); }
  .render-pane  { min-height: 360px; }
  .render-pane-inner { min-height: 360px; padding: var(--s-4); }
  .rp-title { font-size: 24px; }
  .demo-code-controls { gap: var(--s-3); }

  /* Demo B — full-width inputs and CTA, tighter spacing */
  .demo-mockup-field input,
  .demo-mockup-field select {
    font-size: 22px;
    padding: 12px 0;
    min-height: 44px;
  }
  .demo-mockup-cta {
    width: 100%;
    margin-top: var(--s-5);
    padding: 16px 20px;
    min-height: 48px;
  }
  .demo-mockup-canvas { height: 420px; }
  .mk-title { font-size: clamp(28px, 8vw, 40px); }

  /* Demo C — taller stage on phones (16:9 is too squat) */
  .demo-slider { aspect-ratio: 4 / 5; }
  .demo-slider-handle::before { width: 36px; height: 64px; } /* easier grab */
  .demo-slider-corner { font-size: 9px; padding: 3px 6px; top: 8px; }
  .demo-slider-corner--left  { left: 8px; }
  .demo-slider-corner--right { right: 8px; }
  .demo-slider-wire svg { padding: 14px; }
  .demo-slider-fin .mk { padding: 14px !important; gap: 10px; }
  .demo-slider-caption { font-size: 16px; margin-top: var(--s-3); }

  /* Demo D — mini-game: sidebar becomes a 2-up grid on mobile, workspace gets full vertical room. */
  .demo-game {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .game-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: var(--s-4);
    gap: var(--s-3);
    border-right: 0;
    border-bottom: 1px solid var(--border);
    align-items: stretch;
  }
  .game-sidebar-head {
    grid-column: 1 / -1;
    font-size: 10px;
    padding-bottom: var(--s-2);
  }
  .game-block {
    min-height: 56px;
    padding: var(--s-3);
  }
  .game-block-label { font-size: 10px; letter-spacing: 0.1em; }
  .game-workspace { padding: var(--s-4); }
  .game-canvas { min-height: 280px; padding: var(--s-3); }
  .game-canvas.is-empty::before { font-size: 16px; }
  .game-foot { padding: var(--s-3) var(--s-4); }
  .game-timer { font-size: 28px; }
  .game-piece { padding: var(--s-3); }
  .game-piece-remove { min-width: 32px; min-height: 32px; width: 32px; height: 32px; }

  /* Process steps — already stack — tighten the inner spacing */
  .process-step { padding: var(--s-4) 0; gap: var(--s-3); }

  /* Demo-mockup foot — wrap cleanly */
  .demo-mockup-foot { flex-direction: column; gap: var(--s-3); align-items: flex-start; }
  .demo-mockup-foot-line { font-size: 16px; }

  /* Buttons — guarantee 44px hit area */
  .btn-line, .link-arrow, .btn-primary, .hero-jumplink {
    min-height: 44px;
    align-items: center;
  }
  .link-arrow { padding: 6px 0; }

  /* Section heads — keep titles in proportion */
  .section-head { margin-bottom: var(--s-6); }

  /* Score foot CTA — center and breathe a little less */
  .score-foot { gap: var(--s-5); margin-top: var(--s-6); }
  .score-foot-line { font-size: 16px; }

  /* Build paragraph + sketches foot — readable line length */
  .build-paragraph { font-size: 16px; }
  .sketches-foot { font-size: 14px; }
}

/* Very small phones (≤380px) — squeeze one more notch */
@media (max-width: 380px) {
  .demo-title { font-size: 26px; }
  .score-value { font-size: 38px; }
  .score-table-value { font-size: 38px; }
  .game-sidebar { grid-template-columns: 1fr; }
  .modal-body { padding: var(--s-4); }
  .anatomy-head .t-display-l { font-size: 28px; }
}