/* ==========================================================================
   AURELIS — Core Stylesheet
   Structure:
   1. Base & utilities
   2. Skip link / focus
   3. Custom cursor
   4. Preloader
   5. Header & navigation
   6. Menu overlay
   7. Hero
   8. Section scaffolding
   9. Manifesto
   10. Principles
   11. Residences
   12. Materials
   13. Numbers
   14. Location
   15. Architect note
   16. Inquiry / form
   17. Footer
   18. Progress rail
   ========================================================================== */

/* ---------- 1. Base & utilities ---------- */

html {
  scroll-behavior: smooth;
}

body {
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

body.is-locked {
  overflow: hidden;
  height: 100%;
}

.container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--ink-muted);
}

.eyebrow__index {
  color: var(--accent-soft);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.5em;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

section[data-light] {
  background: var(--surface-light);
  color: var(--ink-on-light);
}

section[data-light] .ink-muted {
  color: var(--ink-on-light-muted);
}

.ink-muted {
  color: var(--ink-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  position: relative;
  overflow: hidden;
  transition: color var(--dur-fast) var(--ease-soft);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: translateY(101%);
  transition: transform var(--dur-med) var(--ease-editorial);
  z-index: -1;
}

.btn:hover::before,
.btn:focus-visible::before {
  transform: translateY(0);
}

.btn:hover,
.btn:focus-visible {
  color: var(--surface);
}

section[data-light] .btn {
  color: var(--ink-on-light);
}

section[data-light] .btn::before {
  background: var(--ink-on-light);
}

section[data-light] .btn:hover,
section[data-light] .btn:focus-visible {
  color: var(--surface-light);
}

.link-underline {
  position: relative;
  padding-bottom: 0.2em;
}

.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transition: right var(--dur-fast) var(--ease-soft);
}

.link-underline:hover::after,
.link-underline:focus-visible::after,
.link-underline.is-active::after {
  right: 0;
}

.grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 180px 180px;
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--surface-raised);
}

.media-frame__placeholder {
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, var(--pf-a, #26261f) 0%, var(--pf-b, #171713) 60%, var(--pf-c, #0e0e0c) 100%);
}

.media-frame__caption {
  position: absolute;
  left: var(--space-3);
  bottom: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-bone);
  opacity: 0.75;
}

.noscript-nav {
  position: relative;
  background: var(--color-basalt);
  color: var(--color-bone);
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding: var(--space-3) var(--gutter);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.noscript-nav a {
  color: inherit;
}

.field-reset {
  border: none;
  padding: 0;
}

.material-item__swatch--limestone {
  background: #cdbfa4;
}
.material-item__swatch--timber {
  background: #221c17;
}
.material-item__swatch--bronze {
  background: #746b5c;
}
.material-item__swatch--wool {
  background: #efe9dc;
}
.material-item__swatch--plaster {
  background: #b7ac99;
}

/* ---------- 2. Skip link / focus ---------- */

.skip-link {
  position: fixed;
  top: -100%;
  left: var(--space-3);
  z-index: 2000;
  background: var(--color-bone);
  color: var(--color-basalt);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  transition: top var(--dur-fast) var(--ease-soft);
}

.skip-link:focus {
  top: var(--space-3);
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

/* ---------- 3. Custom cursor ---------- */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 44px;
  height: 44px;
  margin-left: -22px;
  margin-top: -22px;
  border-radius: 50%;
  border: 1px solid var(--color-bone);
  pointer-events: none;
  z-index: var(--z-cursor);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-bone);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-soft), width var(--dur-fast) var(--ease-soft),
    height var(--dur-fast) var(--ease-soft), margin var(--dur-fast) var(--ease-soft),
    background var(--dur-fast) var(--ease-soft), border-color var(--dur-fast) var(--ease-soft);
  will-change: transform;
}

.cursor.is-visible {
  opacity: 1;
}

.cursor__label {
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-soft);
}

.cursor.is-active {
  width: 84px;
  height: 84px;
  margin-left: -42px;
  margin-top: -42px;
  background: var(--color-clay);
  border-color: var(--color-clay);
  color: var(--color-bone);
}

.cursor.is-active .cursor__label {
  opacity: 1;
}

.cursor.is-light-bg {
  border-color: var(--color-basalt);
  color: var(--color-basalt);
}

@media (hover: none), (pointer: coarse) {
  .cursor {
    display: none;
  }
}

/* ---------- 4. Preloader ---------- */

.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--surface);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  transition: opacity var(--dur-slow) var(--ease-editorial), visibility var(--dur-slow) var(--ease-editorial);
}

.loader[hidden] {
  display: none;
}

.loader.is-hiding {
  opacity: 0;
  pointer-events: none;
}

.loader__coords {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  letter-spacing: var(--ls-wide);
  color: var(--ink-muted);
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

.loader__brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 8vw, 4.5rem);
  letter-spacing: 0.08em;
}

.loader__track {
  width: min(220px, 60vw);
  height: 1px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}

.loader__bar {
  position: absolute;
  inset: 0;
  transform-origin: left;
  transform: scaleX(0);
  background: var(--accent-soft);
}

.loader__percent {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--ink-muted);
}

/* ---------- 5. Header & navigation ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--space-3) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  color: var(--color-bone);
  mix-blend-mode: difference;
}

.site-header__brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.06em;
}

.site-header__brand span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  margin-top: 2px;
  opacity: 0.75;
}

.site-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-header__index {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
}

.menu-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: inherit;
}

.menu-btn__lines {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 22px;
}

.menu-btn__lines span {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform var(--dur-fast) var(--ease-soft), opacity var(--dur-fast) var(--ease-soft);
}

.menu-btn[aria-expanded="true"] .menu-btn__lines span:first-child {
  transform: translateY(2.5px) rotate(45deg);
}

.menu-btn[aria-expanded="true"] .menu-btn__lines span:last-child {
  transform: translateY(-2.5px) rotate(-45deg);
}

/* ---------- 6. Menu overlay ---------- */

.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--surface);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(5rem, 12vh, 8rem) var(--gutter) var(--space-6);
  transform: translateY(-102%);
  transition: transform var(--dur-med) var(--ease-editorial);
}

.menu-overlay.is-open {
  transform: translateY(0);
}

.menu-overlay[hidden] {
  display: flex;
}

.menu-overlay__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.menu-overlay__item {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  border-top: var(--hairline);
  padding: var(--space-3) 0;
}

.menu-overlay__item:last-child {
  border-bottom: var(--hairline);
}

.menu-overlay__num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--ink-muted);
}

.menu-overlay__link {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-style: italic;
  transition: transform var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
  display: inline-block;
}

.menu-overlay__item:hover .menu-overlay__link,
.menu-overlay__item:focus-within .menu-overlay__link {
  color: var(--accent-soft);
  transform: translateX(0.4em);
}

.menu-overlay__foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--ink-muted);
  letter-spacing: var(--ls-wide);
}

/* ---------- 7. Hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background: var(--surface);
  color: var(--color-bone);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: calc(var(--z-terrain) + 1);
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.8s var(--ease-editorial);
}

.hero__canvas-fallback {
  position: absolute;
  inset: 0;
  z-index: var(--z-terrain);
  background: radial-gradient(ellipse at 50% 30%, #24241f 0%, #16160f 55%, #0c0c0a 100%);
  opacity: 0;
  transition: opacity 1.8s var(--ease-editorial);
}

body.is-ready .hero__canvas,
body.is-ready .hero__canvas-fallback {
  opacity: 1;
}

/* Entrance choreography: each hero element fades/rises in staggered,
   gated by body.is-ready (set once the preloader completes). */
.hero__coords,
.hero__wordmark,
.hero__type,
.hero__support,
.hero__cta-wrap,
.hero__scroll-cue {
  opacity: 0;
  transform: translateY(18px);
}

body.is-ready .hero__coords {
  animation: hero-rise 0.9s var(--ease-editorial) 0.05s forwards;
}
body.is-ready .hero__wordmark {
  animation: hero-rise 1s var(--ease-editorial) 0.2s forwards;
}
body.is-ready .hero__type {
  animation: hero-rise 0.9s var(--ease-editorial) 0.4s forwards;
}
body.is-ready .hero__support {
  animation: hero-rise 0.9s var(--ease-editorial) 0.75s forwards;
}
body.is-ready .hero__cta-wrap {
  animation: hero-rise 0.9s var(--ease-editorial) 0.85s forwards;
}
body.is-ready .hero__scroll-cue {
  animation: hero-rise 0.9s var(--ease-editorial) 0.95s forwards;
}

@keyframes hero-rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Word-by-word split reveal (see js/animations.js splitWords()).
   Each .split-word is an inline-block span; the parent's aria-label
   carries the full sentence for assistive tech, and the spans are
   aria-hidden so screen readers are not read the text twice. */
.split-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.5em);
  transition: opacity 0.7s var(--ease-editorial), transform 0.7s var(--ease-editorial);
  transition-delay: calc(var(--i, 0) * 55ms);
}

.is-split-visible .split-word {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .hero__canvas,
  .hero__canvas-fallback,
  .hero__coords,
  .hero__wordmark,
  .hero__type,
  .hero__statement,
  .hero__support,
  .hero__cta-wrap,
  .hero__scroll-cue {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

.hero__vignette {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(18, 18, 16, 0.15) 0%, rgba(18, 18, 16, 0) 30%, rgba(18, 18, 16, 0.75) 100%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: var(--z-content);
  padding: clamp(6rem, 14vh, 9rem) var(--gutter) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero__coords {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wider);
  color: var(--color-limestone);
  opacity: 0.8;
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.hero__wordmark {
  font-family: var(--font-display);
  font-size: var(--fs-display-xl);
  line-height: 0.88;
  letter-spacing: 0.01em;
}

.hero__type {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-limestone);
}

.hero__statement {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: var(--fs-display-md);
  max-width: 22ch;
  line-height: var(--lh-tight);
}

.hero__bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

.hero__support {
  max-width: 30ch;
  font-size: var(--fs-body);
  color: var(--color-limestone);
}

.hero__cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
}

.hero__scroll-cue {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-limestone);
  opacity: 0.75;
}

.hero__scroll-cue .scroll-line {
  width: 1px;
  height: 34px;
  background: currentColor;
  position: relative;
  overflow: hidden;
}

.hero__scroll-cue .scroll-line::after {
  content: "";
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bone);
  animation: scrollcue 2.6s var(--ease-soft) infinite;
}

@keyframes scrollcue {
  0% {
    top: -100%;
  }
  60% {
    top: 100%;
  }
  100% {
    top: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__scroll-cue .scroll-line::after {
    animation: none;
    top: 0;
  }
}

/* ---------- 8. Section scaffolding ---------- */

.section {
  position: relative;
  padding-block: var(--space-8);
}

.section--tight {
  padding-block: var(--space-6);
}

.section__head {
  margin-bottom: var(--space-6);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--fs-display-lg);
  line-height: var(--lh-tight);
  margin-top: var(--space-3);
  max-width: 18ch;
}

.section__intro {
  margin-top: var(--space-3);
  color: var(--ink-muted);
  max-width: 40ch;
}

section[data-light] .section__intro {
  color: var(--ink-on-light-muted);
}

.divider {
  border: none;
  height: 64px;
  width: 100%;
  color: var(--line);
}

section[data-light] .divider {
  color: var(--line-on-light);
}

/* ---------- 9. Manifesto ---------- */

.manifesto {
  background: var(--surface);
}

.manifesto__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.manifesto__lines {
  grid-column: 1 / span 12;
}

.manifesto__line {
  font-family: var(--font-display);
  font-size: var(--fs-display-lg);
  line-height: var(--lh-tight);
  color: var(--ink-muted);
  transition: color var(--dur-slow) var(--ease-editorial);
}

.manifesto__line.is-visible {
  color: var(--ink);
}

.manifesto__body {
  grid-column: 4 / span 7;
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.manifesto__para {
  font-size: var(--fs-body-lg);
  color: var(--ink-muted);
  max-width: var(--measure);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-slow) var(--ease-editorial), transform var(--dur-slow) var(--ease-editorial);
}

.manifesto__para.is-visible {
  opacity: 1;
  transform: translateY(0);
  color: var(--ink);
}

/* ---------- 10. Principles ---------- */

.principles {
  background: var(--surface);
}

.principles__stage {
  position: relative;
}

.principle {
  min-height: 92vh;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-6);
  border-top: var(--hairline);
}

.principle:last-child {
  border-bottom: var(--hairline);
}

.principle__index {
  grid-column: 1 / span 2;
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  color: var(--accent-soft);
  align-self: start;
}

.principle__title {
  grid-column: 3 / span 4;
  font-family: var(--font-display);
  font-size: var(--fs-display-md);
  line-height: var(--lh-tight);
}

.principle__text {
  grid-column: 7 / span 5;
  max-width: var(--measure);
  color: var(--ink-muted);
  font-size: var(--fs-body-lg);
}

.principle__visual {
  grid-column: 1 / -1;
  margin-top: var(--space-5);
  height: clamp(180px, 28vw, 320px);
  position: relative;
  overflow: hidden;
}

/* Stone: grounded, textured slab that rises into place */
.principle--stone .principle__visual {
  background: linear-gradient(180deg, #2c2b25 0%, #1b1a15 100%);
}

.principle--stone .principle__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    100deg,
    rgba(232, 225, 213, 0.05) 0px,
    rgba(232, 225, 213, 0.05) 1px,
    transparent 1px,
    transparent 14px
  );
}

.principle--stone .principle__slab {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0%;
  background: var(--color-metal);
  opacity: 0.35;
  transition: height 1.2s var(--ease-editorial);
}

.principle--stone.is-active .principle__slab {
  height: 100%;
}

/* Light: mask sweeps from shadow to warm exposure */
.principle--light .principle__visual {
  background: #14140f;
}

.principle--light .principle__sweep {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 0%, rgba(154, 90, 58, 0.55) 45%, rgba(244, 240, 232, 0.85) 55%, transparent 100%);
  transform: translateX(-120%);
  transition: transform 1.6s var(--ease-editorial);
}

.principle--light.is-active .principle__sweep {
  transform: translateX(120%);
}

/* Silence: near-empty, a single slow line */
.principle--silence .principle__visual {
  background: transparent;
  border-top: var(--hairline);
  border-bottom: var(--hairline);
  display: flex;
  align-items: center;
  justify-content: center;
}

.principle--silence .principle__pulse {
  width: 1px;
  height: 0;
  background: var(--color-metal);
  transition: height 2.2s var(--ease-editorial);
}

.principle--silence.is-active .principle__pulse {
  height: 70%;
}

/* ---------- 11. Residences ---------- */

.residences {
  background: var(--surface-light);
  color: var(--ink-on-light);
}

.residences__gallery-wrap {
  margin-top: var(--space-6);
}

.residences__gallery {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--space-4);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.residences__gallery::-webkit-scrollbar {
  display: none;
}

.residence-card {
  scroll-snap-align: start;
  flex: 0 0 min(78vw, 640px);
  display: flex;
  flex-direction: column;
}

.residence-card__media {
  aspect-ratio: 4 / 3;
  margin-bottom: var(--space-3);
}

.residence-card__num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--color-clay);
  letter-spacing: var(--ls-wide);
}

.residence-card__name {
  font-family: var(--font-display);
  font-size: var(--fs-display-sm);
  margin-top: var(--space-1);
}

.residence-card__desc {
  margin-top: var(--space-2);
  color: var(--ink-on-light-muted);
  max-width: 44ch;
}

.residence-card__specs {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  border-top: var(--hairline-light);
  padding-top: var(--space-3);
}

.residence-card__spec dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--ink-on-light-muted);
}

.residence-card__spec dd {
  margin-top: 4px;
  font-size: var(--fs-body);
}

.residences__controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.residences__buttons {
  display: flex;
  gap: var(--space-2);
}

.gallery-btn {
  width: 46px;
  height: 46px;
  border: var(--hairline-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}

.gallery-btn:hover,
.gallery-btn:focus-visible {
  background: var(--ink-on-light);
  color: var(--surface-light);
}

.gallery-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.residences__progress {
  flex: 1;
  height: 1px;
  background: var(--line-on-light);
  position: relative;
  max-width: 240px;
}

.residences__progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 33.33%;
  background: var(--ink-on-light);
  transition: left 0.15s var(--ease-soft), width 0.15s var(--ease-soft);
}

/* ---------- 12. Materials ---------- */

.materials {
  background: var(--surface);
}

.materials__index {
  border-top: var(--hairline);
  margin-top: var(--space-5);
}

/* Native <details>/<summary> disclosure: works with zero JS, fully
   keyboard and screen-reader accessible, no hover dependency. */
.material-item {
  border-bottom: var(--hairline);
}

.material-item__summary {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  cursor: pointer;
  list-style: none;
}

.material-item__summary::-webkit-details-marker {
  display: none;
}

.material-item__summary::marker {
  content: "";
}

.material-item__swatch {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.material-item__name {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1.4vw, 2.4rem);
  transition: transform var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}

.material-item__summary:hover .material-item__name,
.material-item__summary:focus-visible .material-item__name {
  transform: translateX(0.35em);
  color: var(--accent-soft);
}

.material-item__index {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--ink-muted);
  justify-self: end;
}

.material-item__index::after {
  content: "+";
  display: inline-block;
  margin-left: var(--space-3);
  transition: transform var(--dur-fast) var(--ease-soft);
}

.material-item[open] .material-item__index::after {
  transform: rotate(45deg);
}

.material-item__note {
  max-height: 0;
  overflow: hidden;
  color: var(--ink-muted);
  max-width: var(--measure);
  padding-left: calc(2.5rem + var(--space-4));
  transition: max-height var(--dur-med) var(--ease-editorial), padding-bottom var(--dur-med) var(--ease-editorial);
}

.material-item[open] .material-item__note {
  max-height: 8rem;
  padding-bottom: var(--space-4);
}

/* ---------- 13. Numbers ---------- */

.numbers {
  background: var(--color-basalt-raised);
}

.numbers__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.stat {
  border-top: var(--hairline);
  padding-top: var(--space-3);
}

.stat__value {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 1.6rem + 3vw, 4.2rem);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 0.15em;
}

.stat__unit {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  color: var(--accent-soft);
}

.stat__label {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* ---------- 14. Location ---------- */

.location {
  background: var(--surface);
}

.location__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-6);
  align-items: center;
  margin-top: var(--space-6);
}

.location__map-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  border: var(--hairline);
  overflow: hidden;
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 1s var(--ease-editorial), transform 1s var(--ease-editorial);
}

.location__map-wrap.is-revealed {
  opacity: 1;
  transform: scale(1);
}

.location__map {
  width: 100%;
  height: 100%;
  transition: transform 0.5s var(--ease-soft);
  will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
  .location__map-wrap {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .location__map {
    transition: none;
  }
}

.location__facts {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.location__fact {
  display: flex;
  gap: var(--space-3);
  border-top: var(--hairline);
  padding-top: var(--space-3);
  align-items: baseline;
}

.location__fact-value {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  color: var(--accent-soft);
  white-space: nowrap;
}

.location__fact-label {
  color: var(--ink-muted);
}

.location__note {
  margin-top: var(--space-3);
  font-size: var(--fs-small);
  color: var(--ink-muted);
  font-style: italic;
}

/* ---------- 15. Architect note ---------- */

.architect {
  background: var(--surface-light);
  color: var(--ink-on-light);
}

.architect__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.architect__quote {
  grid-column: 2 / span 9;
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-display-md);
  line-height: var(--lh-snug);
}

.architect__byline {
  grid-column: 2 / span 9;
  margin-top: var(--space-5);
  display: flex;
  gap: var(--space-3);
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.architect__byline strong {
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: none;
  letter-spacing: normal;
  font-size: var(--fs-body);
}

/* ---------- 16. Inquiry / form ---------- */

.inquiry {
  background: var(--surface);
}

.inquiry__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-6);
  margin-top: var(--space-5);
}

.inquiry__intro {
  max-width: 32ch;
}

.inquiry__appointment {
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--accent-soft);
}

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  position: relative;
}

.field--full {
  grid-column: 1 / -1;
}

.field__label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
}

.field__optional {
  opacity: 0.6;
  text-transform: none;
  letter-spacing: 0;
}

.field__input,
.field__select,
.field__textarea {
  border: none;
  border-bottom: 1px solid var(--line);
  padding: var(--space-2) 0;
  background: transparent;
  color: var(--ink);
  font-size: var(--fs-body);
  transition: border-color var(--dur-fast) var(--ease-soft);
}

.field__select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-muted) 50%), linear-gradient(135deg, var(--ink-muted) 50%, transparent 50%);
  background-position: calc(100% - 6px) 55%, calc(100% - 1px) 55%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.field__select option {
  background: var(--surface);
  color: var(--ink);
}

.field__textarea {
  resize: vertical;
  min-height: 6rem;
}

.field__input:focus,
.field__select:focus,
.field__textarea:focus {
  border-color: var(--accent-soft);
  outline: none;
}

.field__input[aria-invalid="true"],
.field__select[aria-invalid="true"],
.field__textarea[aria-invalid="true"] {
  border-color: #b5654a;
}

.field__error {
  font-size: var(--fs-small);
  color: var(--color-clay-soft);
  min-height: 1.2em;
}

.field__radios {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.field__radio {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--fs-body);
}

.field__radio input {
  width: 1em;
  height: 1em;
  accent-color: var(--color-clay);
}

.inquiry__success {
  border-top: var(--hairline);
  padding-top: var(--space-4);
  max-width: 40ch;
}

.inquiry__success:focus {
  outline: none;
}

.inquiry__success-title {
  font-family: var(--font-display);
  font-size: var(--fs-display-sm);
  font-style: italic;
}

.inquiry__success-msg {
  margin-top: var(--space-3);
  color: var(--ink-muted);
}

.form__footnote {
  font-size: var(--fs-small);
  color: var(--ink-muted);
  max-width: 42ch;
}

.form__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.form__status {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.form__status[data-state="success"] {
  color: var(--accent-secondary);
}

.form__status[data-state="error"] {
  color: var(--color-clay-soft);
}

.btn[disabled] {
  opacity: 0.5;
  pointer-events: none;
}

.btn__spinner {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  border-top-color: transparent;
  display: none;
  animation: spin 0.8s linear infinite;
}

.btn.is-loading .btn__spinner {
  display: inline-block;
}

.btn.is-loading .btn__text {
  opacity: 0.7;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- 17. Footer ---------- */

.site-footer {
  background: var(--color-basalt-raised);
  color: var(--ink);
  padding-block: var(--space-6) var(--space-4);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: var(--hairline);
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 1.4rem + 2vw, 2.6rem);
}

.site-footer__brand span {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: var(--space-1);
}

.site-footer__heading {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: var(--space-3);
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-lg);
  color: var(--ink-muted);
}

.site-footer__meta a:hover,
.site-footer__meta a:focus-visible {
  color: var(--ink);
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-4);
}

.site-footer__disclaimer {
  max-width: 52ch;
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.lang-switch {
  display: inline-flex;
  border: var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.lang-switch button {
  padding: 0.5em 0.9em;
  color: var(--ink-muted);
  transition: color var(--dur-fast) var(--ease-soft), background var(--dur-fast) var(--ease-soft);
}

.lang-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--surface);
}

.site-header .lang-switch {
  border-color: currentColor;
}

.site-header .lang-switch button {
  color: var(--color-limestone);
}

.site-header .lang-switch button[aria-pressed="true"] {
  background: var(--color-bone);
  color: var(--color-basalt);
}

.footer__contour {
  margin-top: var(--space-5);
  height: 40px;
  width: 100%;
  color: var(--line);
}

/* ---------- 18. Progress rail ---------- */

.progress-rail {
  position: fixed;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--z-nav);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-bone);
  mix-blend-mode: difference;
}

.progress-rail__track {
  width: 1px;
  height: 120px;
  background: rgba(244, 240, 232, 0.25);
  position: relative;
}

.progress-rail__fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: var(--color-bone);
  transition: height 0.15s linear;
}

.progress-rail__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: var(--ls-wide);
}