:root {
  --bg: #090909;
  --header-height: 6rem;
  --panel: #111111;
  --surface: #1b1b1b;
  --text: #f4f4f4;
  --muted: #b2b2b2;
  --accent: #b9a97f;
  --accent-soft: rgba(185, 169, 127, 0.18);
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 18px 70px rgba(0, 0, 0, 0.35);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html, body {
  min-height: 100%;
}

body {
  width: 100%;
  overflow-x: hidden;
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  background: radial-gradient(circle at top left, rgba(255,255,255,0.04), transparent 35%),
              linear-gradient(180deg, #0a0a0a 0%, #080808 100%);
  color: var(--text);
  line-height: 1.65;
  opacity: 0;
  transition: opacity 0.45s ease;
}

body.page-ready {
  opacity: 1;
}

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

.page-shell,
main {
  overflow-x: hidden;
}

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

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

.page-shell {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.site-header,
.site-footer {
  width: 100%;
  padding: 1.4rem clamp(1.5rem, 3vw, 3rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(9, 9, 9, 0.92);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  backdrop-filter: blur(16px);
  height: var(--header-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-mark {
  display: inline-flex;
  width: 3rem;
  height: 3rem;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.18);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.9rem;
}

.brand-name {
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.28em;
  font-size: 0.9rem;
}

.nav-toggle {
  display: none;
  position: relative;
  width: 3.4rem;
  height: 3.4rem;
  padding: 0;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: transparent;
  text-indent: -9999px;
  overflow: hidden;
  cursor: pointer;
  border-radius: 999px;
  transition: background 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.nav-toggle::before,
.nav-toggle::after,
.nav-toggle span {
  content: '';
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.2s ease;
  transform-origin: center;
}

.nav-toggle::before {
  top: 1rem;
}

.nav-toggle span {
  top: 1.7rem;
}

.nav-toggle::after {
  top: 2.4rem;
}

.nav-toggle:hover {
  background: rgba(185,169,127,0.14);
  transform: translateY(-1px);
}

.site-header.nav-open .nav-toggle {
  border-color: rgba(185,169,127,0.35);
  background: rgba(185,169,127,0.12);
}

.site-header.nav-open .nav-toggle::before {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.site-header.nav-open .nav-toggle span {
  opacity: 0;
  transform: scaleX(0.2);
}

.site-header.nav-open .nav-toggle::after {
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

.main-nav,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
}

.main-nav {
  transition: transform 0.32s ease, opacity 0.32s ease, visibility 0.32s ease;
  z-index: 25;
}

.hero-support {
  display: grid;
  grid-template-columns: repeat(3, minmax(12rem, 1fr));
  gap: 1rem;
  margin-top: 2.8rem;
}

.support-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 1.6rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.support-card span {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
}

.support-card h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.support-card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.main-nav a,
.footer-nav a {
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.82rem;
  color: var(--muted);
}

.site-header.nav-open .main-nav {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.main-nav a::after,
.footer-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.main-nav a:hover::after,
.footer-nav a:hover::after {
  width: 100%;
}

.hero-landing,
.hero-page {
  position: relative;
  /* hero should fill viewport minus header; prefer dynamic --vh to avoid mobile address-bar issues */
  min-height: calc((var(--vh, 1vh) * 100) - var(--header-height));
  /* fallback for browsers without --vh */
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg rgba(145, 145, 145, 0.6) 0%, rgba(255, 255, 255, 0.95) 1000%);
  z-index: 1;
}


.hero-overlay-inicio {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26, 26, 26, 0.6) 0%, rgba(255, 255, 255, 0.95) 1000%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  width: min(100%, 58rem);
  max-width: 58rem;
  padding: clamp(2.5rem, 6vw, 4rem) 1.5rem;
  animation: revealUp 1.2s ease forwards;
  opacity: 0;
  transform: translateY(35px);
}

.hero-content .eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.38em;
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 1.8rem;
}

.hero-content h1 {
  font-size: clamp(3rem, 4vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
  color: white;
}

.hero-copy {
  max-width: 42rem;
  color:  white;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  margin-bottom: 2.4rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 11rem;
  padding: 1rem 1.6rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.18);
  transition: transform 0.28s ease, background 0.28s ease, color 0.28s ease;
}

.hero-button:hover {
  transform: translateY(-2px);
  background: rgba(185, 169, 127, 0.12);
  color: var(--text);
}

.hero-button.ghost {
  color: var(--muted);
}

.section-grid {
  display: grid;
  gap: 1.6rem;
  padding: 4rem clamp(1.5rem, 3vw, 3rem);
}

.section-intro {
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.feature-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 2rem;
  min-height: 15rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow);
}

.feature-index {
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  margin-bottom: 1rem;
  color: var(--accent);
}

.feature-card h2 {
  font-size: 1.6rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--muted);
  font-size: 1rem;
  letter-spacing: 0.06em;
}

.section-materials-preview,
.section-portfolio,
.section-contact {
  padding: 4rem clamp(1.5rem, 3vw, 3rem);
  gap: 2rem;
}

.section-materials-preview {
  display: grid;
  gap: 1.4rem;
}

.section-materials-preview h2,
.section-portfolio h2,
.section-contact h2 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-note {
  max-width: 62rem;
  color: var(--muted);
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.materials-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.materials-card {
  position: relative;
  aspect-ratio: 1 / 1;
  min-height: 13rem;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  border-radius: 1.15rem;
  border: 2px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  font-size:1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, border-color 0.25s ease;
  overflow: hidden;
}

.materials-card-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.9);
  transform: scale(1);
  z-index: 0;
}

.materials-card:hover {
  transform: translateY(-3px);
  border-color: rgba(185,169,127,0.35);
}

.materials-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(12,12,12,0.12), rgba(9,9,9,0.28));
  z-index: 1;
  pointer-events: none;
}

.materials-card > * {
  position: relative;
  z-index: 2;
}

.materials-card-label {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 3.4rem;
  padding: 0.8rem 0.9rem;
  background: rgba(8, 8, 8, 0.9);
  border-top: 1px solid rgba(255,255,255,0.1);
  line-height: 1.25;
  color: #ffffff;
}

.materials-card.granite { background: linear-gradient(135deg, rgba(26,26,26,0.9), rgba(41,41,41,0.95)); }
.materials-card.quartz { background: linear-gradient(135deg, rgba(23,23,23,0.9), rgba(54,52,48,0.95)); }
.materials-card.marble { background: linear-gradient(135deg, rgba(31,31,31,0.9), rgba(65,64,62,0.95)); }
.materials-card.porcelain { background: linear-gradient(135deg, rgba(28,28,28,0.9), rgba(57,57,57,0.95)); }
.materials-card.calacatta { background: linear-gradient(135deg, rgba(42,37,33,0.9), rgba(80,73,66,0.95)); }

.section-portfolio {
  display: grid;
}

.section-heading {
  max-width: 55rem;
  margin-bottom: 2rem;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
}

.portfolio-card {
  min-height: 14rem;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 1rem;
  padding: 0;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  align-items: stretch;
}

.portfolio-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.portfolio-card p {
  position: relative;
  margin: 0;
  z-index: 1;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 1rem 1.2rem;
  background: rgba(8, 8, 8, 0.9);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.portfolio-card.variant-1 { background: linear-gradient(135deg, rgba(25,25,25,0.95), rgba(40,40,40,0.96)); }
.portfolio-card.variant-2 { background: linear-gradient(135deg, rgba(20,20,20,0.95), rgba(45,45,45,0.96)); }
.portfolio-card.variant-3 { background: linear-gradient(135deg, rgba(18,18,18,0.95), rgba(43,43,43,0.96)); }
.portfolio-card.variant-4 { background: linear-gradient(135deg, rgba(22,22,22,0.95), rgba(48,48,48,0.96)); }

.section-contact {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  align-items: center;
  gap: 2rem;
}

.section-contact ul {
  list-style: none;
  margin-top: 1.5rem;
  display: grid;
  gap: 0.8rem;
  padding-left: 0;
}

.section-contact li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--muted);
}

.section-contact li::before {
  content: '•';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
}

.cta-panel {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.cta-panel p {
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 1.75rem;
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  color: var(--muted);
  font-size: 0.92rem;
  flex-direction: column;
  align-items: stretch;
}

.footer-bottom {
  padding: 1.5rem clamp(1.5rem, 3vw, 3rem);
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}

.footer-advanced {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 2rem;
  padding: 3rem clamp(1.5rem, 3vw, 3rem);
  background: rgba(13,13,13,0.98);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-advanced h3 {
  margin-bottom: 1rem;
  font-size: 0.98rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.footer-advanced p,
.footer-advanced a,
.footer-advanced li {
  color: var(--muted);
  line-height: 1.85;
}

.footer-advanced a {
  display: inline-block;
  margin-top: 0.65rem;
}

.footer-advanced ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.65rem;
}

.hero-page {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3rem;
  padding: 5rem clamp(1.5rem, 3vw, 3rem);
  min-height: calc(100vh - 8rem);
}

.hero-split {
  background: linear-gradient(135deg, rgba(255,255,255,0.03), rgba(9,9,9,0.92));
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
}

.hero-copy,
.hero-quote {
  opacity: 0;
  transform: translateY(30px);
  animation: revealUp 1s ease forwards;
}

.hero-copy {
  animation-delay: 0.18s;
}

.hero-quote {
  max-width: 24rem;
  padding: 1.4rem 1.6rem;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  color: var(--text);
  line-height: 1.8;
  animation-delay: 0.28s;
}

.animate-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-item.visible {
  opacity: 1;
  transform: none;
}

.section-panel {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 2.8rem;
  margin: 0 clamp(1.5rem, 3vw, 3rem);
  box-shadow: var(--shadow);
}

.section-panel h2 {
  margin-bottom: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 1.55rem;
}

.section-panel p,
.section-panel ul {
  color: var(--muted);
  line-height: 1.85;
}

.section-panel ul {
  margin-top: 1.2rem;
  list-style: none;
  display: grid;
  gap: 0.9rem;
}

.section-panel ul li {
  position: relative;
  padding-left: 1rem;
}

.section-panel ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.8rem;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--accent);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(12rem, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.detail-grid article {
  border: 1px solid rgba(255,255,255,0.08);
  padding: 1.8rem;
  background: rgba(255,255,255,0.02);
}

.detail-grid h3 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.category-grid {
  padding: clamp(1.5rem, 3vw, 3rem);
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.category-card {
  position: relative;
  min-height: 18rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(180deg, rgba(16,16,16,0.88), rgba(9,9,9,0.96));
  overflow: hidden;
  box-shadow: var(--shadow);
}

.category-card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: blur(10px) brightness(0.45);
  transform: scale(1.08);
  z-index: 0;
}

.category-card span,
.category-card p {
  position: relative;
  z-index: 2;
}

.category-card span {
  font-size: 1.55rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 1rem;
}

.category-card p {
  color: var(--muted);
  line-height: 1.8;
}

.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(255,255,255,0.04), transparent 40%);
  pointer-events: none;
  z-index: 1;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 2rem;
  padding: clamp(1.5rem, 3vw, 3rem);
}

.contact-panel,
.contact-form,
.location-panel {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
}

.contact-panel,
.location-panel {
  padding: 2.6rem;
}

.contact-panel ul,
.location-panel ul {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.9rem;
  list-style: none;
}

.contact-form {
  display: grid;
  gap: 1.25rem;
  padding: 2.6rem;
}

.contact-form label {
  display: grid;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 1rem 1rem;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  outline: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: rgba(185,169,127,0.45);
}

.contact-form button {
  margin-top: 0.5rem;
  padding: 1rem 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  border: 1px solid rgba(185,169,127,0.32);
  background: rgba(185,169,127,0.08);
  color: var(--text);
  cursor: pointer;
}

.map-panel {
  display: grid;
  min-height: 22rem;
  padding: 1.5rem;
}

.map-frame {
  flex: 1;
  display: grid;
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(145deg, rgba(255,255,255,0.04), rgba(9,9,9,0.92));
  overflow: hidden;
  min-height: 24rem;
}

.map-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.sample-grid,
.project-grid {
  display: grid;
  gap: 1rem;
}

.sample-grid {
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
}

.sample-card {
  position: relative;
  min-height: 12rem;
  border: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: 1rem;
}

.sample-card:nth-child(1) { background: radial-gradient(circle at top left, #222, #0b0b0b); }
.sample-card:nth-child(2) { background: radial-gradient(circle at top left, #404040, #101010); }
.sample-card:nth-child(3) { background: radial-gradient(circle at top left, #fafafa, #dedede); }
.sample-card:nth-child(4) { background: radial-gradient(circle at top left, #0f1723, #121116); }
.sample-card:nth-child(5) { background: radial-gradient(circle at top left, #5b4535, #120e0b); }
.sample-card:nth-child(6) { background: radial-gradient(circle at top left, #1a2f24, #0b120c); }
.sample-card:nth-child(7) { background: radial-gradient(circle at top left, #c8b79d, #2f2922); }
.sample-card:nth-child(8) { background: radial-gradient(circle at top left, #462d26, #130c0b); }
.sample-card:nth-child(9) { background: radial-gradient(circle at top left, #1f1f1f, #0a0a0a); }
.sample-card:nth-child(10) { background: radial-gradient(circle at top left, #d9c9b2, #2f281f); }

.sample-card::after {
  content: attr(data-name);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: end center;
  background: rgba(0,0,0,0.6);
  color: white;
  font-size: 0.94rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  padding-bottom: 1rem;
}

.sample-card:hover::after {
  transform: translateY(0);
}

.sample-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.95;
}

.sample-card span {
  position: relative;
  z-index: 1;
  color: transparent;
}

.sample-card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
   
  transform: scale(1.1);
  z-index: 0;
}

.project-grid {
  grid-template-columns: repeat(3, minmax(12rem, 1fr));
}

.project-card {
  position: relative;
  min-height: 12rem;
  border: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
  background-color: #111;
}

.project-card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  
  transform: scale(1.1);
  z-index: 0;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.08) 0%, rgba(0,0,0,0.4) 100%);
}

.project-card p {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  margin: 0;
  color: var(--text);
  z-index: 1;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.82rem;
}

.project-card.variant-1 { background: linear-gradient(150deg, #292929, #121212); }
.project-card.variant-2 { background: linear-gradient(160deg, #1b1b1b, #2f2f2f); }
.project-card.variant-3 { background: linear-gradient(160deg, #0f0f0f, #202020); }
.project-card.variant-4 { background: linear-gradient(160deg, #151515, #282828); }
.project-card.variant-5 { background: linear-gradient(160deg, #232323, #101010); }
.project-card.variant-6 { background: linear-gradient(160deg, #131313, #2a2a2a); }
.project-card.variant-7 { background: linear-gradient(160deg, #181818, #303030); }
.project-card.variant-8 { background: linear-gradient(160deg, #111111, #272727); }
.project-card.variant-9 { background: linear-gradient(160deg, #202020, #141414); }
.project-card.variant-10 { background: linear-gradient(160deg, #0d0d0d, #242424); }
.project-card.variant-11 { background: linear-gradient(160deg, #191919, #2b2b2b); }
.project-card.variant-12 { background: linear-gradient(160deg, #121212, #242424); }
.project-card.variant-13 { background: linear-gradient(160deg, #1f1f1f, #171717); }
.project-card.variant-14 { background: linear-gradient(160deg, #141414, #262626); }
.project-card.variant-15 { background: linear-gradient(160deg, #111111, #212121); }

.whatsapp-float {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 50;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.8rem;
  height: 3.8rem;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(10,10,10,0.98);
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 18px 45px rgba(0,0,0,0.35);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.whatsapp-float svg {
  width: 1.5rem;
  height: 1.5rem;
  fill: var(--text);
}

.whatsapp-float:hover {
  transform: translateY(-3px);
  border-color: rgba(185,169,127,0.45);
  background: rgba(185,169,127,0.14);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .feature-card {
    padding: 1.5rem;
    min-height: auto;
    gap: 0.75rem;
  }

  .feature-index {
    font-size: 0.72rem;
    margin-bottom: 0.25rem;
  }

  .feature-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
  }

  .feature-card p {
    font-size: 0.95rem;
  }

  .main-nav {
    position: fixed;
    inset: 5.2rem 0 auto 0;
    background: rgba(12,12,12,0.98);
    flex-direction: column;
    padding: 2rem 1.5rem 2.5rem;
    gap: 1rem;
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.32s ease, opacity 0.32s ease;
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .main-nav a {
    font-size: 0.95rem;
    color: var(--text);
  }

  .site-header {
    flex-wrap: wrap;
    align-items: center;
    padding: 1rem clamp(1rem, 3vw, 1.5rem);
  }

  .site-header.nav-open {
    background: rgba(9,9,9,0.98);
  }

  .site-header.nav-open .nav-toggle {
    background: rgba(185,169,127,0.12);
  }

  .hero-page,
  .hero-landing {
    min-height: auto;
    min-height: calc((var(--vh, 1vh) * 100) - var(--header-height));
    min-height: calc(100vh - var(--header-height));
    padding: 5.5rem 1rem 2rem;
    align-items: start;
  }

  .hero-content {
    width: 100%;
    max-width: 100%;
    padding: 0 0 1.25rem;
  }

  .hero-content h1 {
    font-size: clamp(2.25rem, 5.3vw, 3.2rem);
    max-width: 10ch;
  }

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

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

  .hero-button {
    width: 100%;
    max-width: 18rem;
  }

  .section-contact,
  .contact-layout,
  .section-categories,
  .detail-grid,
  .project-grid,
  .category-grid,
  .footer-advanced {
    grid-template-columns: 1fr;
  }

  .section-panel,
  .contact-panel,
  .contact-form,
  .map-panel {
    margin: 0 1.25rem 1.5rem;
  }

  .site-footer {
    padding-inline: 0;
  }

  .footer-advanced {
    padding: 2.2rem 1rem;
    gap: 1.5rem;
  }
}

@media (max-width: 720px) {
  .section-intro {
    grid-template-columns: 1fr;
  }

  .feature-card {
    padding: 1.25rem;
  }

  .feature-card h2 {
    font-size: 1.1rem;
    letter-spacing: 0.1em;
  }

  .feature-card p {
    font-size: 0.9rem;
  }

  .whatsapp-float {
    right: 1rem;
    bottom: 1rem;
    width: 3.4rem;
    height: 3.4rem;
  }

  .hero-content {
    padding: 0 0 1rem;
  }

  .hero-content h1 {
    font-size: clamp(2rem, 8vw, 2.7rem);
    letter-spacing: 0.12em;
  }

  .hero-copy {
    font-size: 0.95rem;
  }

  .hero-landing {
    min-height: auto;
    min-height: calc((var(--vh, 1vh) * 100) - var(--header-height));
    min-height: calc(100vh - var(--header-height));
    padding-block: 5rem 2rem;
  }

  .materials-preview {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .materials-card {
    min-height: clamp(10rem, 42vw, 13.5rem);
  }

  .materials-card-label {
    min-height: 3rem;
    font-size: 0.95rem;
    letter-spacing: 0.14em;
  }

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

  .section-grid,
  .section-materials-preview,
  .section-portfolio,
  .section-contact {
    padding: 3rem 1rem;
  }

  .section-contact {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .section-note {
    max-width: 100%;
  }
}

@keyframes revealUp {
  from {
    opacity: 0;
    transform: translateY(35px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .hero-page {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .contact-layout,
  .section-categories {
    grid-template-columns: 1fr;
  }

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

.section-panel,
.contact-panel,
.contact-form,
.map-panel {
  margin: 0 clamp(1rem, 4vw, 1.5rem);
}

.hero-page {
  padding: 3rem 1.2rem;
}

.category-grid {
  padding: 2rem 1.2rem 3rem;
}