:root {
  --black: #0b0b0b;
  --ink: #151515;
  --ink-soft: #1b1a19;
  --cream: #f2ece1;
  --cream-deep: #e7dfd1;
  --paper: #faf7f1;
  --copper: #b87333;
  --copper-light: #d28a48;
  --muted-dark: #a7a095;
  --muted-light: #706a61;
  --line-dark: rgba(242, 236, 225, 0.12);
  --line-light: rgba(21, 21, 21, 0.12);
  --display: "Fraunces", Georgia, serif;
  --body: "Archivo", Arial, sans-serif;
  --max-width: 1240px;
  --radius: 8px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
}

img {
  display: block;
  height: auto;
  max-width: 100%;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.06;
}

.skip-link {
  background: var(--copper);
  color: var(--black);
  left: 16px;
  padding: 10px 16px;
  position: fixed;
  top: -80px;
  z-index: 200;
}

.skip-link:focus {
  top: 16px;
}

.container {
  margin: 0 auto;
  max-width: var(--max-width);
  padding-inline: 32px;
  width: 100%;
}

.eyebrow {
  align-items: center;
  color: var(--copper-light);
  display: inline-flex;
  font-size: 0.72rem;
  font-weight: 600;
  gap: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.eyebrow::before {
  background: currentColor;
  content: "";
  height: 1px;
  width: 30px;
}

.eyebrow--dark {
  color: var(--copper);
}

.section-heading {
  font-size: clamp(2.1rem, 4.6vw, 4rem);
  margin-top: 22px;
  max-width: 800px;
}

.section-lead {
  color: var(--muted-light);
  font-size: 1.05rem;
  margin-top: 24px;
  max-width: 650px;
}

.section-lead--light {
  color: var(--muted-dark);
}

.btn {
  align-items: center;
  border: 1px solid transparent;
  display: inline-flex;
  font-size: 0.84rem;
  font-weight: 600;
  justify-content: center;
  letter-spacing: 0.04em;
  min-height: 52px;
  padding: 14px 26px;
  transition:
    background 180ms var(--ease),
    border-color 180ms var(--ease),
    color 180ms var(--ease),
    transform 180ms var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--copper);
  color: var(--black);
}

.btn--primary:hover {
  background: var(--copper-light);
}

.btn--outline {
  border-color: rgba(242, 236, 225, 0.28);
  color: var(--cream);
}

.btn--outline:hover {
  border-color: var(--copper-light);
  color: var(--copper-light);
}

.btn--dark-outline {
  border-color: var(--ink);
  color: var(--ink);
}

.btn--dark-outline:hover {
  background: var(--ink);
  color: var(--cream);
}

/* Navigation */
.site-header {
  background: rgba(11, 11, 11, 0.82);
  border-bottom: 1px solid var(--line-dark);
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  transition: background 200ms ease;
  z-index: 100;
}

.site-header.scrolled {
  background: rgba(11, 11, 11, 0.97);
}

.nav {
  align-items: center;
  display: flex;
  height: 86px;
  justify-content: space-between;
}

.brand {
  align-items: center;
  color: var(--cream);
  display: inline-flex;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 500;
  gap: 14px;
  letter-spacing: 0.18em;
  position: relative;
  z-index: 2;
}

.brand-mark {
  background:
    linear-gradient(135deg, rgba(184, 115, 51, 0.22), transparent 50%),
    #151515;
  border: 1px solid var(--copper);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  display: grid;
  height: 34px;
  place-items: center;
  transform: rotate(45deg);
  width: 34px;
}

.brand-mark::before {
  border-bottom: 1px solid var(--copper-light);
  border-left: 1px solid var(--copper-light);
  content: "";
  height: 12px;
  width: 12px;
}

.nav-menu {
  align-items: center;
  display: flex;
  gap: 34px;
}

.nav-menu a {
  color: var(--cream);
  font-size: 0.86rem;
  position: relative;
}

.nav-menu a:not(.nav-cta)::after {
  background: var(--copper);
  bottom: -8px;
  content: "";
  height: 1px;
  left: 0;
  position: absolute;
  transition: width 180ms ease;
  width: 0;
}

.nav-menu a:not(.nav-cta):hover {
  color: var(--copper-light);
}

.nav-menu a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  border: 1px solid var(--copper);
  color: var(--copper-light) !important;
  padding: 10px 18px;
}

.nav-cta:hover {
  background: var(--copper);
  color: var(--black) !important;
}

.menu-toggle {
  background: transparent;
  cursor: pointer;
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  position: relative;
  z-index: 2;
}

.menu-toggle span {
  background: var(--cream);
  height: 1px;
  transition: transform 180ms ease, opacity 180ms ease;
  width: 25px;
}

/* Hero */
.hero {
  align-items: center;
  background:
    radial-gradient(circle at 20% 40%, rgba(184, 115, 51, 0.11), transparent 34%),
    linear-gradient(135deg, #0b0b0b 0%, #1d1b19 100%);
  color: var(--cream);
  display: flex;
  min-height: 100svh;
  overflow: hidden;
  padding: 138px 0 88px;
  position: relative;
}

.hero::before {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='.2'/%3E%3C/svg%3E");
  content: "";
  inset: 0;
  mix-blend-mode: overlay;
  opacity: 0.2;
  pointer-events: none;
  position: absolute;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: clamp(48px, 7vw, 88px);
  grid-template-columns: 1.06fr 0.94fr;
  position: relative;
  z-index: 1;
}

.hero-copy h1 {
  font-size: clamp(3.2rem, 7.3vw, 6.6rem);
  margin: 28px 0 30px;
  max-width: 760px;
}

.hero-copy h1 em {
  color: var(--copper-light);
  display: block;
  font-weight: 400;
}

.hero-lead {
  color: var(--muted-dark);
  font-size: clamp(1rem, 1.4vw, 1.16rem);
  max-width: 610px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.hero-points {
  border-top: 1px solid var(--line-dark);
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 52px;
  padding-top: 28px;
}

.hero-point strong {
  color: var(--cream);
  display: block;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 500;
}

.hero-point span {
  color: var(--muted-dark);
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  margin-top: 5px;
  text-transform: uppercase;
}

.stone-frame {
  margin-left: auto;
  max-width: 520px;
  position: relative;
  width: 100%;
}

.stone-photo {
  aspect-ratio: 4 / 5;
  background: #8b9090;
  border: 1px solid rgba(242, 236, 225, 0.13);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.48);
  overflow: hidden;
  padding: 14px;
  transform: perspective(1100px) rotateY(-3deg);
}

.stone-photo img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.stone-tag {
  background: rgba(11, 11, 11, 0.9);
  bottom: 32px;
  color: var(--cream);
  font-size: 0.72rem;
  left: 32px;
  letter-spacing: 0.09em;
  padding: 10px 14px;
  position: absolute;
  text-transform: uppercase;
}

.stone-tag::before {
  background: var(--copper-light);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--copper);
  content: "";
  display: inline-block;
  height: 7px;
  margin-right: 9px;
  width: 7px;
}

.stone-badge {
  align-items: center;
  background: #111;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  color: var(--muted-dark);
  display: flex;
  font-size: 0.72rem;
  gap: 10px;
  letter-spacing: 0.06em;
  padding: 14px 20px;
  position: absolute;
  right: -34px;
  top: 38px;
}

.stone-badge b {
  color: var(--copper-light);
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 500;
}

/* Flagship material */
.flagship {
  background: var(--paper);
  padding: clamp(88px, 10vw, 144px) 0;
}

.flagship-grid {
  align-items: center;
  display: grid;
  gap: clamp(52px, 8vw, 100px);
  grid-template-columns: 0.9fr 1.1fr;
}

.flagship-visual {
  background: var(--cream-deep);
  border: 1px solid var(--line-light);
  padding: 18px;
  position: relative;
}

.flagship-visual img {
  aspect-ratio: 1 / 1;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.flagship-visual figcaption {
  align-items: center;
  color: var(--muted-light);
  display: flex;
  font-size: 0.7rem;
  justify-content: space-between;
  letter-spacing: 0.12em;
  padding: 14px 2px 0;
  text-transform: uppercase;
}

.flagship-visual figcaption strong {
  color: var(--ink);
  font-weight: 600;
}

.flagship-copy h2 {
  font-size: clamp(2.6rem, 5.4vw, 5rem);
  margin: 24px 0 28px;
}

.flagship-copy {
  min-width: 0;
}

.flagship-copy h2 em {
  color: var(--copper);
  font-weight: 400;
}

.flagship-copy p {
  color: var(--muted-light);
  font-size: 1.05rem;
  max-width: 620px;
}

.flagship-copy p + p {
  margin-top: 18px;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.feature-list span {
  border: 1px solid var(--line-light);
  color: var(--ink);
  font-size: 0.73rem;
  letter-spacing: 0.06em;
  padding: 9px 13px;
  text-transform: uppercase;
}

.flagship-copy .btn {
  margin-top: 34px;
}

/* Materials */
.materials {
  background:
    radial-gradient(circle at 80% 18%, rgba(184, 115, 51, 0.1), transparent 30%),
    var(--black);
  color: var(--cream);
  padding: clamp(88px, 10vw, 142px) 0;
}

.materials-header {
  align-items: end;
  display: flex;
  gap: 50px;
  justify-content: space-between;
}

.materials-header .section-heading {
  max-width: 700px;
}

.materials-header .section-lead {
  max-width: 430px;
}

.material-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 64px;
}

.material-card {
  border: 1px solid var(--line-dark);
  min-height: 390px;
  overflow: hidden;
  padding: 28px;
  position: relative;
  transition: border-color 180ms ease, transform 180ms var(--ease);
}

.material-card:hover {
  border-color: rgba(184, 115, 51, 0.7);
  transform: translateY(-4px);
}

.material-card::before,
.material-card::after {
  content: "";
  inset: 0;
  position: absolute;
}

.material-card::after {
  background: linear-gradient(180deg, rgba(11, 11, 11, 0.08), rgba(11, 11, 11, 0.92));
}

.material-card--light::before {
  background:
    linear-gradient(118deg, transparent 30%, rgba(120, 111, 96, 0.38) 31%, transparent 33%),
    linear-gradient(45deg, #e7e1d6, #bfb5a6);
}

.material-card--grey::before {
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.14) 1px, transparent 1.5px),
    linear-gradient(135deg, #777c7b, #363938);
  background-size: 20px 20px, auto;
}

.material-card--dark::before {
  background:
    linear-gradient(150deg, transparent 35%, rgba(184, 115, 51, 0.22) 36%, transparent 38%),
    linear-gradient(135deg, #302b28, #080808);
}

.material-card--vein::before {
  background:
    linear-gradient(72deg, transparent 42%, rgba(240, 235, 224, 0.16) 43%, transparent 45%),
    linear-gradient(132deg, #6e6258, #2a2420);
}

.material-card-content {
  bottom: 28px;
  left: 28px;
  position: absolute;
  right: 28px;
  z-index: 1;
}

.material-card-index {
  color: var(--copper-light);
  font-family: var(--display);
  font-style: italic;
}

.material-card h3 {
  color: var(--cream);
  font-size: 1.55rem;
  margin: 14px 0 10px;
}

.material-card p {
  color: var(--muted-dark);
  font-size: 0.88rem;
}

.materials-note {
  align-items: center;
  border-top: 1px solid var(--line-dark);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin-top: 50px;
  padding-top: 30px;
}

.materials-note p {
  color: var(--muted-dark);
  max-width: 650px;
}

/* Applications */
.applications {
  background: var(--cream);
  padding: clamp(88px, 10vw, 142px) 0;
}

.application-grid {
  border-left: 1px solid var(--line-light);
  border-top: 1px solid var(--line-light);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 62px;
}

.application-card {
  border-bottom: 1px solid var(--line-light);
  border-right: 1px solid var(--line-light);
  min-height: 230px;
  padding: 32px;
  transition: background 180ms ease;
}

.application-card:hover {
  background: var(--paper);
}

.application-index {
  color: var(--copper);
  font-family: var(--display);
  font-style: italic;
}

.application-card h3 {
  font-size: 1.55rem;
  margin: 42px 0 12px;
}

.application-card p {
  color: var(--muted-light);
  font-size: 0.9rem;
}

/* Projects */
.projects {
  background: var(--cream-deep);
  border-bottom: 1px solid var(--line-light);
  border-top: 1px solid var(--line-light);
  padding: clamp(82px, 9vw, 126px) 0;
}

.project-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  margin-top: 56px;
}

.project-card {
  background: var(--ink);
  color: var(--cream);
  min-height: 390px;
  overflow: hidden;
  padding: 28px;
  position: relative;
}

.project-card::before {
  content: "";
  inset: 0;
  opacity: 0.72;
  position: absolute;
}

.project-card--main::before {
  background:
    linear-gradient(135deg, transparent 30%, rgba(184, 115, 51, 0.16)),
    url("kamien.webp") center / cover;
  filter: grayscale(0.25) contrast(1.05);
}

.project-card--lines::before {
  background:
    repeating-linear-gradient(110deg, transparent 0 48px, rgba(242, 236, 225, 0.06) 49px 50px),
    linear-gradient(135deg, #292725, #111);
}

.project-card--blocks::before {
  background:
    linear-gradient(90deg, transparent 48%, rgba(242, 236, 225, 0.08) 49% 51%, transparent 52%),
    linear-gradient(#4d4a46, #171615);
}

.project-card::after {
  background: linear-gradient(180deg, transparent 26%, rgba(11, 11, 11, 0.94));
  content: "";
  inset: 0;
  position: absolute;
}

.project-card-content {
  bottom: 28px;
  left: 28px;
  position: absolute;
  right: 28px;
  z-index: 1;
}

.project-card small {
  color: var(--copper-light);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.project-card h3 {
  font-size: 1.65rem;
  margin: 10px 0 6px;
}

.project-card p {
  color: var(--muted-dark);
  font-size: 0.86rem;
}

.project-disclaimer {
  color: var(--muted-light);
  font-size: 0.8rem;
  margin-top: 18px;
}

/* Process */
.process {
  background: var(--paper);
  padding: clamp(88px, 10vw, 142px) 0;
}

.process-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 62px;
}

.process-card {
  border-top: 1px solid var(--ink);
  padding-top: 24px;
}

.process-index {
  color: var(--copper);
  display: block;
  font-family: var(--display);
  font-size: 2.5rem;
  font-style: italic;
}

.process-card h3 {
  font-size: 1.35rem;
  margin: 20px 0 12px;
}

.process-card p {
  color: var(--muted-light);
  font-size: 0.9rem;
}

/* Contact */
.contact {
  background:
    radial-gradient(circle at 20% 80%, rgba(184, 115, 51, 0.1), transparent 28%),
    var(--black);
  color: var(--cream);
  padding: clamp(90px, 10vw, 148px) 0;
}

.contact-grid {
  align-items: center;
  display: grid;
  gap: clamp(54px, 8vw, 100px);
  grid-template-columns: 1.04fr 0.96fr;
}

.contact-grid > * {
  min-width: 0;
}

.contact h2 {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  margin: 24px 0 24px;
}

.contact h2 em {
  color: var(--copper-light);
  font-weight: 400;
}

.contact-copy {
  color: var(--muted-dark);
  max-width: 620px;
}

.contact-panel {
  background: rgba(242, 236, 225, 0.04);
  border: 1px solid var(--line-dark);
  padding: 36px;
}

.contact-row {
  align-items: center;
  border-bottom: 1px solid var(--line-dark);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 17px 0;
}

.contact-row:first-child {
  padding-top: 0;
}

.contact-row span {
  color: var(--muted-dark);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.contact-row strong {
  color: var(--cream);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: right;
}

.contact-panel .btn {
  margin-top: 28px;
  width: 100%;
}

.contact-note {
  color: var(--muted-dark);
  font-size: 0.72rem;
  margin-top: 12px;
  text-align: center;
}

/* Footer */
.footer {
  background: #070707;
  border-top: 1px solid var(--line-dark);
  color: var(--muted-dark);
  padding: 30px 0;
}

.footer-inner {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  font-size: 0.78rem;
  gap: 18px;
  justify-content: space-between;
}

.footer-brand {
  color: var(--cream);
  font-family: var(--display);
  font-size: 1rem;
  letter-spacing: 0.14em;
}

/* 404 */
.not-found-page {
  background:
    radial-gradient(circle at 22% 42%, rgba(184, 115, 51, 0.12), transparent 32%),
    linear-gradient(135deg, #0b0b0b 0%, #1d1b19 100%);
  color: var(--cream);
  min-height: 100svh;
}

.not-found {
  display: flex;
  flex-direction: column;
  margin: 0 auto;
  max-width: var(--max-width);
  min-height: 100svh;
  padding: 32px;
}

.not-found-content {
  margin-block: auto;
  max-width: 760px;
  padding: 80px 0;
}

.not-found-content h1 {
  font-size: clamp(3.4rem, 8vw, 7rem);
  margin: 28px 0 24px;
}

.not-found-content > p:not(.eyebrow) {
  color: var(--muted-dark);
  font-size: 1.05rem;
}

.not-found-content .btn {
  margin-top: 36px;
}

/* Responsive */
@media (max-width: 1020px) {
  .hero-grid,
  .flagship-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .stone-frame {
    margin: 0;
    max-width: 620px;
  }

  .stone-photo {
    aspect-ratio: 5 / 4;
    transform: none;
  }

  .flagship-visual {
    max-width: 660px;
  }

  .materials-header {
    align-items: start;
    flex-direction: column;
    gap: 0;
  }

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

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

  .project-card--main {
    grid-column: 1 / -1;
  }

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

@media (max-width: 760px) {
  .container {
    padding-inline: 20px;
  }

  .nav {
    height: 74px;
  }

  .nav-menu {
    align-items: stretch;
    background: rgba(11, 11, 11, 0.99);
    border-bottom: 1px solid var(--line-dark);
    flex-direction: column;
    gap: 0;
    left: 0;
    padding: 88px 20px 24px;
    position: fixed;
    right: 0;
    top: 0;
    transform: translateY(-110%);
    transition: transform 220ms var(--ease);
  }

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

  .nav-menu a {
    border-bottom: 1px solid var(--line-dark);
    font-size: 1rem;
    padding: 16px 0;
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-cta {
    border: 0;
    color: var(--copper-light) !important;
    padding-inline: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    padding: 116px 0 70px;
  }

  .hero-copy h1 {
    font-size: clamp(3rem, 15vw, 5rem);
  }

  .hero-points {
    grid-template-columns: 1fr;
  }

  .stone-badge {
    display: none;
  }

  .flagship-visual {
    display: none;
  }

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

@media (max-width: 540px) {
  .brand {
    font-size: 1.08rem;
  }

  .brand-mark {
    height: 29px;
    width: 29px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stone-photo {
    aspect-ratio: 4 / 5;
  }

  .stone-tag {
    bottom: 24px;
    left: 24px;
  }

  .flagship-visual figcaption {
    align-items: start;
    flex-direction: column;
    gap: 4px;
  }

  .flagship-copy h2 {
    font-size: clamp(2.15rem, 10.5vw, 2.6rem);
  }

  .contact h2 {
    font-size: clamp(2.15rem, 10.5vw, 2.8rem);
  }

  .material-grid,
  .application-grid,
  .project-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .project-card--main {
    grid-column: auto;
  }

  .materials-note {
    align-items: stretch;
    flex-direction: column;
  }

  .materials-note .btn {
    width: 100%;
  }

  .contact-panel {
    padding: 26px 22px;
  }

  .contact-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .contact-row strong {
    text-align: left;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .not-found {
    padding: 24px 20px;
  }

  .not-found-content .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}