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

body {
  background: #0b0d10;
  color: #ffffff;
  font-family: 'Manrope', sans-serif;
}

/* header */
.site-header {
  width: 100%;
  height: 80px;
  padding: 0 40px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Sticky header */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 2000;
}

#header .site-header {
  background: rgba(12, 13, 15, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

body {
  padding-top: 72px;
}

.site-logo {
  color: #ffffff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 2px;
}

.site-nav {
  display: flex;
  gap: 32px;
}

.site-nav a {
  color: #b8b8b8;
  text-decoration: none;
  font-size: 14px;
}

/* footer */
.site-footer {
  padding: 48px 40px 28px;

  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;

  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: inline-block;
  margin-bottom: 10px;

  color: #ffffff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 2px;
}

.footer-info p {
  color: #888888;
  font-size: 14px;
}

.footer-links {
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

.footer-links a {
  color: #b8b8b8;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-copyright {
  grid-column: 1 / -1;

  padding-top: 28px;
  color: #888888;
  font-size: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* main */
.hero {
  min-height: 620px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-content {
  padding: 80px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-label {
  margin-bottom: 18px;
  color: #c8a96a;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
}

.hero h1 {
  margin-bottom: 24px;
  font-size: clamp(48px, 6vw, 88px);
  line-height: 1;
}

.hero-description {
  max-width: 520px;
  color: #a5a5a5;
  font-size: 17px;
  line-height: 1.8;
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  gap: 14px;
}

.hero-image {
  position: relative;
  overflow: hidden;
}

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

.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;

  background: linear-gradient(
    to right,
    #0b0d10 0%,
    rgba(11, 13, 16, 0.7) 12%,
    transparent 40%
  );
}

/* button */
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-height: 48px;
  padding: 0 24px;

  text-decoration: none;
  font-size: 14px;
  font-weight: 600;

  border-radius: 4px;
  transition: 0.2s ease;
}

.primary-button {
  background: #c8a96a;
  color: #0b0d10;
}

.primary-button:hover {
  background: #ddbe7d;
}

.secondary-button {
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.secondary-button:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

/* Cart main */
.featured-projects {
  max-width: 1400px;
  margin: 0 auto;
  padding: 110px 40px;
}

.section-header {
  margin-bottom: 36px;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-header h2 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 600;
  letter-spacing: -1px;
}

.section-header > a {
  color: #a5a5a5;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.section-header > a:hover {
  color: #ffffff;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

/* img card */
.project-card {
  position: relative;
  display: block;
  overflow: hidden;

  color: #ffffff;
  text-decoration: none;
  border-radius: 6px;
  background: #15181c;
}

.project-card--featured {
  aspect-ratio: 7 / 4;
}

.project-card img {
  width: 100%;
  height: 100%;
  display: block;

  object-fit: cover;
  object-position: center;
}

.project-card__content {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;

  padding: 60px 24px 22px;

  background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
}

.project-card__content h3 {
  margin-bottom: 6px;
  font-size: 24px;
}

.project-card__content p {
  color: #c4c4c4;
  font-size: 13px;
  line-height: 1.5;
}

/* selected work */
.selected-work {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px 110px;
}

.selected-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.project-card--selected {
  aspect-ratio: 4 / 3;
}

.project-card--selected .project-card__content {
  padding: 55px 18px 16px;
}

.project-card--selected .project-card__content h3 {
  font-size: 18px;
}

.project-card--selected .project-card__content p {
  font-size: 12px;
}

/* Sculpt-Studies */
.sculpt-studies {
  width: min(1050px, calc(100% - 48px));
  margin: 0 auto;
  padding: 80px 0;
}

.sculpt-studies-card {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 6px;
  background: #151515;
  color: inherit;
  text-decoration: none;
}

.sculpt-studies-card img {
  display: block;
  width: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.sculpt-studies-card__content {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 24px;
}

.sculpt-studies-card__content span {
  flex-shrink: 0;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.sculpt-studies-card:hover img {
  transform: scale(1.025);
}

@media (max-width: 768px) {
  .sculpt-studies {
    width: min(100% - 32px, 1200px);
    padding: 60px 0;
  }

  .sculpt-studies-card img {
    height: 380px;
  }

  .sculpt-studies-card__content {
    display: block;
    padding: 25px;
  }

  .sculpt-studies-card__content h3 {
    font-size: 23px;
  }

  .sculpt-studies-card__content span {
    display: inline-block;
    margin-top: 18px;
  }
}

/* Back-to-Top */
#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid #3a3a3a;
  border-radius: 50%;
  background: #171717;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0.25s ease;
  z-index: 1000;
}

#back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  background: #fff;
  color: #111;
}

@media (max-width: 768px) {
  #back-to-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
  }
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid #d6bd7b;
  outline-offset: 4px;
}

/* Tablet: fix Sculpt Studies cropping */
@media (max-width: 768px) {
  .sculpt-studies-card img {
    height: auto;
    object-fit: contain;
  }
}

/* Mobile */
@media (max-width: 640px) {
  body {
    padding-top: 112px;
  }

  /* Header */
  .site-header {
    height: 112px;
    padding: 14px 18px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 12px;
  }

  .site-logo {
    font-size: 12px;
    white-space: nowrap;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    flex: 0 0 auto;
    font-size: 11px;
    white-space: nowrap;
  }

  /* Hero */
  .hero {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .hero-content {
    padding: 56px 22px 40px;
  }

  .hero h1 {
    margin-bottom: 20px;
    font-size: 44px;
    line-height: 0.98;
  }

  .hero-description {
    font-size: 15px;
    line-height: 1.65;
  }

  .hero-actions {
    margin-top: 26px;
    flex-wrap: wrap;
  }

  .primary-button,
  .secondary-button {
    min-height: 44px;
    padding: 0 18px;
    font-size: 13px;
  }

  .hero-image {
    height: 430px;
  }

  .hero-image img {
    object-position: center;
  }

  .hero-image::after {
    background: linear-gradient(
      to bottom,
      rgba(11, 13, 16, 0.08),
      transparent 65%,
      rgba(11, 13, 16, 0.25)
    );
  }

  /* Sections */
  .featured-projects {
    padding: 70px 20px;
  }

  .selected-work {
    padding: 0 20px 70px;
  }

  .section-header {
    margin-bottom: 24px;
  }

  .section-header h2 {
    font-size: 30px;
  }

  /* Project cards */
  .featured-grid,
  .selected-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .project-card--featured {
    aspect-ratio: 16 / 10;
  }

  .project-card--selected {
    aspect-ratio: 4 / 3;
  }

  .project-card__content {
    padding: 52px 18px 16px;
  }

  .project-card__content h3 {
    font-size: 20px;
  }

  .project-card__content p {
    font-size: 12px;
  }

  .project-card--selected .project-card__content {
    padding: 48px 16px 14px;
  }

  .project-card--selected .project-card__content h3 {
    font-size: 18px;
  }

  /* Sculpt Studies */
  .sculpt-studies {
    width: calc(100% - 40px);
    padding: 64px 0;
  }

  .sculpt-studies-card img {
    height: auto;
    object-fit: contain;
  }

  .sculpt-studies-card__content {
    padding: 16px;
  }

  .sculpt-studies-card__content span {
    margin-top: 0;
    font-size: 12px;
  }

  /* Footer */
  .site-footer {
    padding: 40px 20px 24px;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 14px 20px;
  }

  .footer-copyright {
    grid-column: auto;
    padding-top: 22px;
  }
}