/* ==========================================================================
   HESKO.SITE — Material Digital
   Pure HTML5 + CSS3
   ========================================================================== */

:root {
  --graphite: #161817;
  --carbon: #0D0F0E;
  --concrete: #B7B5AD;
  --warm-stone: #D8D0C0;
  --porcelain: #F1EEE6;
  --copper: #A96243;
  --oxidized: #526B62;
  --steel-blue: #536873;
  --brass: #C19A5B;
  --text: #171918;
  --text-light: #F4F1E9;

  --grad-steel: linear-gradient(115deg, #343938 0%, #8A908D 45%, #303534 100%);
  --grad-oxidized: linear-gradient(135deg, #526B62 0%, #687A6B 42%, #A96243 100%);
  --grad-stone: linear-gradient(135deg, #B7B5AD 0%, #D8D0C0 50%, #AFA99D 100%);
  --grad-glass: linear-gradient(135deg, rgba(30, 34, 33, 0.96), rgba(78, 87, 84, 0.72));
  --grad-brass: linear-gradient(135deg, #80633B 0%, #C19A5B 48%, #E0C488 100%);
  --grad-divider: linear-gradient(90deg, #8A908D 0%, #A96243 50%, #C19A5B 100%);

  --font-display: "Albert Sans", sans-serif;
  --font-secondary: "General Sans", "Albert Sans", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --space-xs: clamp(0.5rem, 1vw, 0.75rem);
  --space-sm: clamp(1rem, 2vw, 1.5rem);
  --space-md: clamp(1.5rem, 3vw, 2.5rem);
  --space-lg: clamp(2.5rem, 6vw, 5rem);
  --space-xl: clamp(4rem, 10vw, 8rem);

  --nav-h: 4.25rem;
  --radius: 4px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset ----------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(0.95rem, 1.05vw, 1.05rem);
  line-height: 1.6;
  color: var(--text);
  background: var(--porcelain);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  font: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--graphite);
  color: var(--text-light);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

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

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel-blue);
}

.section-label--light {
  color: var(--concrete);
}

/* Buttons --------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 3rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition:
    background 0.45s var(--ease),
    color 0.45s var(--ease),
    border-color 0.45s var(--ease),
    transform 0.45s var(--ease),
    box-shadow 0.45s var(--ease);
}

.btn--primary {
  background: var(--graphite);
  color: var(--porcelain);
  border-color: var(--graphite);
}

.btn--primary:hover {
  background: var(--copper);
  border-color: var(--copper);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(22, 24, 23, 0.18);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(23, 25, 24, 0.28);
}

.btn--ghost:hover {
  border-color: var(--copper);
  color: var(--copper);
  transform: translateY(-2px);
}

.btn--brass {
  background: var(--grad-brass);
  color: var(--carbon);
  border-color: transparent;
  box-shadow: 0 10px 30px rgba(193, 154, 91, 0.25);
}

.btn--brass:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(193, 154, 91, 0.35);
}

/* 1. Navigation --------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(241, 238, 230, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(22, 24, 23, 0.12);
}

.nav__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.nav__brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.15rem;
  justify-self: start;
  transition: color 0.35s var(--ease);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.nav__tld {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--steel-blue);
}

.nav__brand:hover {
  color: var(--copper);
}

.nav__brand:hover .nav__tld {
  color: var(--copper);
}

.nav__center {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--steel-blue);
}

.nav__index {
  justify-self: end;
  font-family: var(--font-secondary);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  position: relative;
  padding-bottom: 0.2rem;
  transition: color 0.35s var(--ease);
}

.nav__index::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}

.nav__index:hover {
  color: var(--copper);
}

.nav__index:hover::after {
  transform: scaleX(1);
}

.nav__drawer {
  display: none;
  justify-self: end;
  position: relative;
}

.nav__menu {
  list-style: none;
  width: 2rem;
  height: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.nav__menu::-webkit-details-marker {
  display: none;
}

.nav__menu span {
  display: block;
  height: 1px;
  background: var(--graphite);
  transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
}

.nav__drawer[open] .nav__menu span:first-child {
  transform: translateY(0.55rem) rotate(45deg);
}

.nav__drawer[open] .nav__menu span:last-child {
  transform: translateY(-0.55rem) rotate(-45deg);
}

.nav__panel {
  position: absolute;
  top: calc(100% + 1rem);
  right: 0;
  min-width: 12rem;
  padding: 1rem;
  background: var(--porcelain);
  border: 1px solid rgba(22, 24, 23, 0.14);
  border-radius: var(--radius);
  box-shadow: 0 16px 40px rgba(13, 15, 14, 0.12);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.nav__panel a {
  font-family: var(--font-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.3s var(--ease);
}

.nav__panel a:hover {
  color: var(--copper);
}

/* 2. Hero --------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: calc(100svh - var(--nav-h));
  padding: var(--space-lg) clamp(1.25rem, 4vw, 3rem) var(--space-md);
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(216, 208, 192, 0.55), transparent 70%),
    radial-gradient(ellipse 50% 40% at 15% 80%, rgba(183, 181, 173, 0.35), transparent 60%),
    var(--porcelain);
  overflow: hidden;
}

.hero__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--steel-blue);
  margin-bottom: var(--space-md);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3.4rem, 9vw, 7.5rem);
  line-height: 0.9;
  letter-spacing: -0.045em;
  color: var(--text);
}

.hero__title span {
  display: block;
}

.hero__title-em {
  font-weight: 600;
}

.hero__support {
  max-width: 28rem;
  margin-top: var(--space-md);
  font-family: var(--font-secondary);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  font-weight: 400;
  line-height: 1.65;
  color: rgba(23, 25, 24, 0.72);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: var(--space-md);
}

.hero__stage {
  position: relative;
  min-height: clamp(280px, 48vw, 520px);
  display: grid;
  place-items: center;
}

.hero__watermark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: clamp(5rem, 18vw, 14rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: rgba(22, 24, 23, 0.04);
  pointer-events: none;
  user-select: none;
}

.sculpture {
  position: relative;
  width: min(100%, 480px);
  aspect-ratio: 1;
  animation: sculpture-float 12s var(--ease-soft) infinite alternate;
}

.sculpture__metal,
.sculpture__stone,
.sculpture__glass,
.sculpture__ceramic,
.sculpture__copper {
  position: absolute;
}

.sculpture__metal {
  inset: 12% 18% 28% 10%;
  background:
    repeating-linear-gradient(
      105deg,
      rgba(255, 255, 255, 0.08) 0px,
      rgba(255, 255, 255, 0.08) 1px,
      transparent 1px,
      transparent 3px
    ),
    var(--grad-steel);
  border-radius: 3px;
  box-shadow:
    0 30px 60px rgba(13, 15, 14, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    inset 0 -20px 40px rgba(0, 0, 0, 0.18);
  transform: rotate(-4deg);
  z-index: 1;
}

.sculpture__stone {
  width: 38%;
  height: 34%;
  right: 8%;
  bottom: 14%;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.35), transparent 45%),
    var(--grad-stone);
  border-radius: 2px;
  clip-path: polygon(8% 0%, 100% 12%, 92% 100%, 0% 88%);
  box-shadow: 0 18px 36px rgba(13, 15, 14, 0.2);
  z-index: 2;
}

.sculpture__glass {
  width: 42%;
  height: 48%;
  left: 28%;
  top: 22%;
  background: var(--grad-glass);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  backdrop-filter: blur(4px);
  box-shadow:
    0 20px 40px rgba(13, 15, 14, 0.22),
    inset 0 0 40px rgba(255, 255, 255, 0.05);
  transform: rotate(8deg);
  z-index: 3;
  mix-blend-mode: multiply;
  opacity: 0.88;
}

.sculpture__ceramic {
  width: 34%;
  aspect-ratio: 1;
  left: 8%;
  bottom: 18%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, #ffffff 0%, #f1eee6 35%, #d8d0c0 70%, #b7b5ad 100%);
  box-shadow:
    0 22px 40px rgba(13, 15, 14, 0.18),
    inset 0 -12px 24px rgba(175, 169, 157, 0.45),
    inset 0 8px 16px rgba(255, 255, 255, 0.7);
  z-index: 4;
}

.sculpture__copper {
  width: 22%;
  aspect-ratio: 1;
  right: 22%;
  top: 16%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, transparent 58%, #a96243 59%, #7a4630 100%);
  box-shadow:
    0 12px 24px rgba(169, 98, 67, 0.35),
    inset 0 0 0 1px rgba(224, 196, 136, 0.25);
  z-index: 5;
  animation: copper-spin 28s linear infinite;
}

.sculpture__tag {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  color: var(--steel-blue);
  white-space: nowrap;
  opacity: 0.85;
}

.sculpture__tag--metal { top: 6%; left: 4%; }
.sculpture__tag--stone { bottom: 6%; right: 2%; }
.sculpture__tag--glass { top: 38%; right: -2%; }
.sculpture__tag--copper { top: 10%; right: 18%; }
.sculpture__tag--ceramic { bottom: 12%; left: 0%; }

.hero__scroll {
  position: absolute;
  right: clamp(1.25rem, 4vw, 3rem);
  bottom: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  color: var(--steel-blue);
  transition: color 0.35s var(--ease);
}

.hero__scroll:hover {
  color: var(--copper);
}

@keyframes sculpture-float {
  from { transform: translateY(0); }
  to { transform: translateY(-10px); }
}

@keyframes copper-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 3. Manifesto ---------------------------------------------------------- */

.manifesto {
  background: var(--carbon);
  color: var(--text-light);
  padding: var(--space-xl) clamp(1.25rem, 4vw, 3rem);
}

.manifesto__inner {
  max-width: 960px;
  margin: 0 auto;
}

.manifesto__title {
  margin-top: var(--space-md);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.manifesto__title span {
  display: block;
}

.manifesto__title span:last-child {
  font-weight: 600;
}

.manifesto__rule {
  width: min(12rem, 40%);
  height: 1px;
  margin: var(--space-md) 0;
  background: var(--copper);
}

.manifesto__text {
  max-width: 36rem;
  font-family: var(--font-secondary);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.7;
  color: rgba(244, 241, 233, 0.72);
}

/* 4. Material Index ----------------------------------------------------- */

.index {
  background: var(--porcelain);
  padding: var(--space-xl) clamp(1.25rem, 4vw, 3rem);
}

.index__header {
  max-width: 1400px;
  margin: 0 auto var(--space-md);
}

.index__list {
  max-width: 1400px;
  margin: 0 auto;
  border-top: 1px solid rgba(22, 24, 23, 0.14);
}

.index__row {
  display: grid;
  grid-template-columns: clamp(4rem, 10vw, 7rem) 1fr auto;
  gap: var(--space-sm);
  align-items: center;
  padding: clamp(1.4rem, 3vw, 2.2rem) 0.5rem;
  border-bottom: 1px solid rgba(22, 24, 23, 0.14);
  position: relative;
  overflow: hidden;
  transition:
    padding 0.5s var(--ease),
    background 0.5s var(--ease),
    transform 0.5s var(--ease);
}

.index__row::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  z-index: 0;
}

.index__row--metal::before { background: var(--grad-steel); }
.index__row--stone::before { background: var(--grad-stone); }
.index__row--glass::before { background: var(--grad-glass); }
.index__row--ceramic::before {
  background: linear-gradient(135deg, #f1eee6 0%, #d8d0c0 55%, #b7b5ad 100%);
}
.index__row--copper::before { background: var(--grad-oxidized); }

.index__num,
.index__body,
.index__arrow {
  position: relative;
  z-index: 1;
}

.index__num {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1;
  transition: color 0.4s var(--ease);
}

.index__name {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.index__desc {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--font-secondary);
  font-size: 0.95rem;
  color: rgba(23, 25, 24, 0.62);
  transition: color 0.4s var(--ease);
}

.index__arrow {
  font-size: 1.4rem;
  transform: translateX(0);
  transition: transform 0.45s var(--ease);
}

.index__row:hover,
.index__row:focus-visible {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  transform: scaleY(1.01);
}

.index__row:hover::before,
.index__row:focus-visible::before {
  opacity: 0.18;
}

.index__row:hover .index__num,
.index__row:focus-visible .index__num {
  color: var(--copper);
}

.index__row:hover .index__arrow,
.index__row:focus-visible .index__arrow {
  transform: translateX(8px);
}

.index__row--metal:hover,
.index__row--glass:hover,
.index__row--copper:hover {
  color: var(--text);
}

.index__row--metal:hover .index__desc,
.index__row--glass:hover .index__desc,
.index__row--copper:hover .index__desc {
  color: rgba(23, 25, 24, 0.75);
}

/* 5. Surface Gallery ---------------------------------------------------- */

.gallery {
  background:
    linear-gradient(180deg, #ebe7dc 0%, var(--porcelain) 100%);
  padding: var(--space-xl) clamp(1.25rem, 4vw, 3rem);
}

.gallery__header {
  max-width: 1400px;
  margin: 0 auto var(--space-lg);
}

.gallery__title {
  margin-top: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
  max-width: 1400px;
  margin: 0 auto;
}

.surface {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.surface__panel {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: 3px;
  overflow: hidden;
  transition:
    transform 0.6s var(--ease),
    box-shadow 0.6s var(--ease);
}

.surface__panel::before,
.surface__panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.surface:hover .surface__panel {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(13, 15, 14, 0.18);
}

.surface__meta {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.surface__num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--steel-blue);
}

.surface__name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.12em;
}

/* Brushed */
.surface--brushed .surface__panel {
  background:
    repeating-linear-gradient(
      112deg,
      rgba(255, 255, 255, 0.1) 0 1px,
      transparent 1px 4px
    ),
    linear-gradient(115deg, #2f3432 0%, #8a908d 42%, #3a3f3d 68%, #6f7673 100%);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.25);
}

.surface--brushed .surface__panel::after {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  animation: sheen 7s var(--ease-soft) infinite;
}

/* Raw stone */
.surface--raw .surface__panel {
  background:
    radial-gradient(ellipse at 20% 30%, rgba(255, 255, 255, 0.25), transparent 40%),
    radial-gradient(ellipse at 70% 70%, rgba(120, 110, 95, 0.28), transparent 45%),
    linear-gradient(145deg, #c4beb2 0%, #d8d0c0 40%, #a8a094 100%);
}

.surface--raw .surface__panel::before {
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0 7px,
      rgba(90, 82, 70, 0.04) 7px 8px
    ),
    repeating-linear-gradient(
      90deg,
      transparent 0 11px,
      rgba(90, 82, 70, 0.03) 11px 12px
    );
}

/* Smoked glass */
.surface--smoked .surface__panel {
  background:
    linear-gradient(160deg, rgba(40, 46, 44, 0.95), rgba(90, 100, 96, 0.55)),
    linear-gradient(45deg, #161817, #536873);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.surface--smoked .surface__panel::after {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), transparent 40%, rgba(255, 255, 255, 0.05));
}

/* Oxidized */
.surface--oxidized .surface__panel {
  background:
    radial-gradient(circle at 70% 20%, rgba(169, 98, 67, 0.55), transparent 35%),
    radial-gradient(circle at 25% 80%, rgba(82, 107, 98, 0.7), transparent 40%),
    var(--grad-oxidized);
}

.surface--oxidized .surface__panel::before {
  background:
    repeating-radial-gradient(
      circle at 40% 40%,
      transparent 0 10px,
      rgba(0, 0, 0, 0.04) 10px 12px
    );
}

/* Polished brass */
.surface--polished .surface__panel {
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 240, 200, 0.55), transparent 35%),
    var(--grad-brass);
  box-shadow: inset 0 -30px 50px rgba(80, 55, 20, 0.25);
}

.surface--polished .surface__panel::after {
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.35) 48%, transparent 62%);
  animation: sheen 9s var(--ease-soft) infinite;
}

/* Matte ceramic */
.surface--matte .surface__panel {
  background:
    radial-gradient(circle at 35% 30%, #ffffff, #f1eee6 45%, #d8d0c0 100%);
  box-shadow:
    inset 0 -20px 40px rgba(183, 181, 173, 0.45),
    inset 0 10px 20px rgba(255, 255, 255, 0.65);
}

@keyframes sheen {
  0%, 100% { transform: translateX(-40%); opacity: 0.3; }
  50% { transform: translateX(40%); opacity: 0.7; }
}

/* 6. Featured Objects --------------------------------------------------- */

.objects {
  background: var(--porcelain);
  padding: var(--space-xl) clamp(1.25rem, 4vw, 3rem);
}

.objects__header {
  max-width: 1400px;
  margin: 0 auto var(--space-lg);
}

.objects__title {
  margin-top: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  letter-spacing: -0.03em;
}

.object {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(22, 24, 23, 0.12);
}

.object:last-child {
  border-bottom: 1px solid rgba(22, 24, 23, 0.12);
}

.object--quiet,
.object--float {
  grid-template-columns: 1.35fr 1fr;
}

.object--frame {
  grid-template-columns: 1fr 0.85fr;
}

.object__visual {
  position: relative;
  min-height: clamp(260px, 36vw, 420px);
  border-radius: 3px;
  overflow: hidden;
  transition: transform 0.7s var(--ease);
}

.object:hover .object__visual {
  transform: translateY(-4px);
}

.object__visual::before,
.object__visual::after {
  content: "";
  position: absolute;
}

/* Quiet Machine — horizontal architectural */
.object--quiet .object__visual {
  background:
    linear-gradient(180deg, #e8e3d6 0%, #d5cfc1 100%);
}

.object--quiet .object__visual::before {
  left: 8%;
  top: 28%;
  width: 72%;
  height: 18%;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.12) 0 1px,
      transparent 1px 5px
    ),
    var(--grad-steel);
  border-radius: 2px;
  box-shadow: 0 16px 32px rgba(13, 15, 14, 0.2);
}

.object--quiet .object__visual::after {
  left: 18%;
  bottom: 22%;
  width: 28%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 28%, #fff, #f1eee6 50%, #cfc7b8);
  box-shadow: 0 14px 28px rgba(13, 15, 14, 0.15);
}

/* Copper Frame — vertical */
.object--frame .object__visual {
  background: var(--carbon);
  min-height: clamp(340px, 48vw, 520px);
}

.object--frame .object__visual::before {
  inset: 12% 28%;
  background: var(--grad-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 40px rgba(255, 255, 255, 0.04);
}

.object--frame .object__visual::after {
  inset: 8% 22%;
  border: 3px solid transparent;
  border-image: linear-gradient(180deg, #a96243, #526b62, #7a4630) 1;
  opacity: 0.9;
}

/* Floating Surface — asymmetric */
.object--float .object__visual {
  background:
    radial-gradient(ellipse at 60% 40%, rgba(83, 104, 115, 0.25), transparent 50%),
    #1a1d1c;
}

.object--float .object__visual::before {
  width: 48%;
  height: 42%;
  left: 12%;
  top: 28%;
  background: var(--grad-stone);
  clip-path: polygon(0 10%, 100% 0, 90% 100%, 8% 88%);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  transform: rotate(-6deg);
}

.object--float .object__visual::after {
  width: 30%;
  height: 8%;
  right: 16%;
  top: 38%;
  background: var(--grad-brass);
  border-radius: 1px;
  box-shadow: 0 10px 20px rgba(193, 154, 91, 0.3);
  transform: rotate(18deg);
}

.object__material {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--steel-blue);
}

.object__name {
  margin-top: 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.object__desc {
  margin-top: 1rem;
  max-width: 28rem;
  font-family: var(--font-secondary);
  color: rgba(23, 25, 24, 0.68);
  line-height: 1.7;
}

.object__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: var(--space-md);
  max-width: 28rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(22, 24, 23, 0.12);
}

.object__year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--concrete);
}

.object__link {
  font-family: var(--font-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.35s var(--ease);
}

.object__link span {
  display: inline-block;
  transition: transform 0.4s var(--ease);
}

.object__link:hover {
  color: var(--copper);
}

.object__link:hover span {
  transform: translateX(6px);
}

/* 7. Material Lab ------------------------------------------------------- */

.lab {
  background: var(--graphite);
  color: var(--text-light);
  padding: var(--space-xl) clamp(1.25rem, 4vw, 3rem);
  overflow: hidden;
}

.lab__inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.lab__title {
  margin-top: var(--space-md);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.lab__title span {
  display: block;
}

.lab__title span:last-child {
  font-weight: 600;
}

.lab__stage {
  position: relative;
  margin-top: var(--space-lg);
  min-height: clamp(280px, 50vw, 460px);
  display: grid;
  place-items: center;
}

.lab__object {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 16 / 10;
  border-radius: 4px;
  background:
    linear-gradient(125deg, #536873 0%, #161817 35%, #a96243 70%, #c19a5b 100%);
  background-size: 220% 220%;
  animation: material-shift 14s var(--ease-soft) infinite alternate;
  box-shadow:
    0 40px 80px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -30px 60px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.lab__object::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      108deg,
      rgba(255, 255, 255, 0.06) 0 1px,
      transparent 1px 5px
    );
  opacity: 0.55;
}

.lab__light {
  position: absolute;
  inset: -20%;
  background: linear-gradient(
    105deg,
    transparent 30%,
    rgba(255, 255, 255, 0.22) 48%,
    transparent 62%
  );
  animation: light-sweep 8s var(--ease-soft) infinite;
}

.lab__labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.lab__labels li {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: rgba(244, 241, 233, 0.55);
}

.lab__labels li:nth-child(1) { top: 8%; left: 4%; }
.lab__labels li:nth-child(2) { top: 8%; right: 4%; }
.lab__labels li:nth-child(3) { bottom: 8%; left: 4%; }
.lab__labels li:nth-child(4) { bottom: 8%; right: 4%; }

@keyframes material-shift {
  0% { background-position: 0% 40%; }
  100% { background-position: 100% 60%; }
}

@keyframes light-sweep {
  0% { transform: translateX(-35%) skewX(-12deg); }
  100% { transform: translateX(35%) skewX(-12deg); }
}

/* 8. Archive ------------------------------------------------------------ */

.archive {
  background: var(--porcelain);
  padding: var(--space-xl) clamp(1.25rem, 4vw, 3rem);
}

.archive__header {
  max-width: 900px;
  margin: 0 auto var(--space-md);
}

.archive__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.archive__list {
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid rgba(22, 24, 23, 0.14);
}

.archive__row {
  display: grid;
  grid-template-columns: 0.75rem 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1.15rem 0.25rem;
  border-bottom: 1px solid rgba(22, 24, 23, 0.12);
  transition:
    transform 0.4s var(--ease),
    padding 0.4s var(--ease);
}

.archive__marker {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper);
  opacity: 0;
  transform: scale(0.5);
  transition:
    opacity 0.35s var(--ease),
    transform 0.35s var(--ease);
}

.archive__meta {
  font-family: var(--font-mono);
  font-size: clamp(0.78rem, 1.4vw, 0.9rem);
  letter-spacing: 0.1em;
  color: rgba(23, 25, 24, 0.62);
  transition: color 0.35s var(--ease);
}

.archive__arrow {
  opacity: 0.35;
  transform: translateX(0);
  transition:
    transform 0.4s var(--ease),
    opacity 0.4s var(--ease),
    color 0.4s var(--ease);
}

.archive__row:hover,
.archive__row:focus-visible {
  transform: translateX(8px);
}

.archive__row:hover .archive__marker,
.archive__row:focus-visible .archive__marker {
  opacity: 1;
  transform: scale(1);
}

.archive__row:hover .archive__meta,
.archive__row:focus-visible .archive__meta {
  color: var(--text);
}

.archive__row:hover .archive__arrow,
.archive__row:focus-visible .archive__arrow {
  opacity: 1;
  color: var(--copper);
  transform: translateX(6px);
}

/* 9. Final Installation ------------------------------------------------- */

.installation {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: var(--space-xl) clamp(1.25rem, 4vw, 3rem);
  background: var(--carbon);
  color: var(--text-light);
  overflow: hidden;
  text-align: center;
}

.installation__sculpture {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.install-glass,
.install-stone,
.install-copper,
.install-brass {
  position: absolute;
}

.install-glass {
  width: min(42vw, 380px);
  height: min(48vw, 420px);
  left: 12%;
  top: 18%;
  background: var(--grad-glass);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  transform: rotate(-8deg);
  opacity: 0.55;
  filter: blur(0.2px);
  animation: install-drift 16s var(--ease-soft) infinite alternate;
}

.install-stone {
  width: min(28vw, 240px);
  height: min(22vw, 180px);
  right: 14%;
  bottom: 22%;
  background: var(--grad-stone);
  clip-path: polygon(10% 0, 100% 15%, 88% 100%, 0 85%);
  opacity: 0.45;
  animation: install-drift 18s var(--ease-soft) infinite alternate-reverse;
}

.install-copper {
  width: min(18vw, 140px);
  aspect-ratio: 1;
  left: 22%;
  bottom: 20%;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, transparent 55%, #a96243 56%, #526b62 100%);
  opacity: 0.65;
  animation: copper-spin 40s linear infinite;
}

.install-brass {
  width: min(20vw, 160px);
  height: 8px;
  right: 24%;
  top: 32%;
  background: var(--grad-brass);
  border-radius: 1px;
  opacity: 0.5;
  transform: rotate(24deg);
  box-shadow: 0 0 40px rgba(193, 154, 91, 0.2);
}

.installation__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.installation__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(3.2rem, 9vw, 7rem);
  line-height: 0.92;
  letter-spacing: -0.045em;
}

.installation__title span {
  display: block;
}

.installation__title span:last-child {
  font-weight: 600;
}

.installation__text {
  margin: var(--space-md) auto;
  max-width: 28rem;
  font-family: var(--font-secondary);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.7;
  color: rgba(244, 241, 233, 0.7);
}

@keyframes install-drift {
  from { transform: translateY(0) rotate(-8deg); }
  to { transform: translateY(-16px) rotate(-5deg); }
}

/* 10. Footer ------------------------------------------------------------ */

.footer {
  background: var(--graphite);
  color: var(--text-light);
  padding: 0 clamp(1.25rem, 4vw, 3rem) var(--space-md);
}

.footer__divider {
  height: 2px;
  background: var(--grad-divider);
  margin-bottom: var(--space-lg);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.2fr 1.5fr;
  gap: var(--space-lg);
  max-width: 1400px;
  margin: 0 auto;
  padding-top: var(--space-md);
}

.footer__logo {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.footer__tld {
  font-family: var(--font-mono);
  font-size: 0.35em;
  letter-spacing: 0.1em;
  color: var(--concrete);
  vertical-align: super;
  margin-left: 0.15em;
}

.footer__tagline {
  margin-top: 1rem;
  font-family: var(--font-secondary);
  font-size: 1.05rem;
  color: rgba(244, 241, 233, 0.65);
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.footer__col h3 {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--concrete);
  margin-bottom: 1rem;
}

.footer__col a {
  display: inline-block;
  font-family: var(--font-secondary);
  font-size: 0.95rem;
  color: rgba(244, 241, 233, 0.72);
  margin-bottom: 0.65rem;
  position: relative;
  transition: color 0.35s var(--ease);
}

.footer__col a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.footer__col a:hover {
  color: var(--text-light);
}

.footer__col a:hover::after {
  transform: scaleX(1);
}

.footer__bottom {
  max-width: 1400px;
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(244, 241, 233, 0.1);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: rgba(244, 241, 233, 0.45);
}

/* Responsive ------------------------------------------------------------ */

@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .hero__stage {
    order: -1;
    min-height: clamp(260px, 55vw, 400px);
  }

  .sculpture {
    width: min(100%, 400px);
  }

  .gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .object--quiet,
  .object--frame,
  .object--float {
    grid-template-columns: 1fr;
  }

  .object--frame .object__visual {
    order: -1;
  }

  .footer__top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav__index {
    display: none;
  }

  .nav__inner {
    grid-template-columns: auto 1fr auto;
    gap: 0.75rem;
  }

  .nav__center {
    justify-self: center;
    font-size: 0.6rem;
  }

  .nav__drawer {
    display: block;
  }

  .hero {
    padding-bottom: calc(var(--space-lg) + 2rem);
  }

  .hero__scroll {
    position: static;
    display: inline-block;
    margin-top: var(--space-md);
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .sculpture__tag--glass,
  .sculpture__tag--copper {
    display: none;
  }

  .index__row {
    grid-template-columns: 3.5rem 1fr auto;
    gap: 0.75rem;
  }

  .index__desc {
    font-size: 0.85rem;
  }

  .gallery__grid {
    grid-template-columns: 1fr;
  }

  .surface__panel {
    aspect-ratio: 16 / 11;
  }

  .lab__labels li:nth-child(2),
  .lab__labels li:nth-child(3) {
    display: none;
  }

  .footer__cols {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .install-glass {
    width: 55vw;
    height: 50vw;
    left: 5%;
  }

  .install-stone {
    width: 36vw;
    height: 28vw;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: clamp(3rem, 14vw, 4rem);
  }

  .manifesto__title,
  .lab__title,
  .installation__title {
    font-size: clamp(2.6rem, 13vw, 3.4rem);
  }
}

/* Reduced motion -------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}