:root {
  --color-brand: #0f5d6f;
  --color-brand-strong: #073a44;
  --color-accent: #f2aa3d;
  --color-brand-soft: #d7edf1;
  --container: min(1240px, 92vw);
}

body.ruping-theme {
  background:
    radial-gradient(980px 420px at 8% -10%, rgba(15, 93, 111, 0.18), transparent 70%),
    radial-gradient(820px 360px at 95% 8%, rgba(242, 170, 61, 0.14), transparent 65%),
    #f4f7fb;
}

.ruping-theme .topbar {
  background: #06343d;
}

.ruping-theme .site-header {
  background: rgba(248, 251, 255, 0.92);
}

.ruping-theme .hero-overlay {
  background: linear-gradient(118deg, rgba(7, 24, 34, 0.84), rgba(5, 36, 42, 0.62));
}

.ruping-theme .hero-shell {
  min-height: clamp(22rem, 68vh, 34rem);
}

.ruping-theme .hero-content {
  min-height: clamp(22rem, 68vh, 34rem);
  padding-block: clamp(1.6rem, 4.5vh, 3rem);
}

.ruping-theme .hero-bg img {
  object-position: center 42%;
}

.ruping-theme .hero-content h1 {
  max-width: 18ch;
}

.section-about .card {
  border-color: #cbe0e5;
  background: linear-gradient(165deg, #ffffff, #f2f8fa);
}

.section-focus {
  background:
    linear-gradient(160deg, rgba(12, 67, 80, 0.11), rgba(255, 255, 255, 0.9)),
    #eef5f8;
}

.section-focus .focus-area {
  border-top: 4px solid rgba(15, 93, 111, 0.72);
  border-color: #bfd9e1;
}

.section-projects {
  padding-top: 4rem;
}

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

.project-card {
  border: 1px solid #c9dfe4;
  border-radius: 0.95rem;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 16px 31px rgba(7, 58, 68, 0.12);
}

.project-card img {
  width: 100%;
  height: 12.2rem;
  object-fit: cover;
}

.project-card div {
  padding: 0.95rem;
}

.project-card h3 {
  margin-bottom: 0.4rem;
}

.section-process .timeline {
  border: 1px solid #c6dce1;
  border-radius: 0.88rem;
  padding: 0.92rem;
  background: #fff;
}

.section-advantages .card {
  border: 1px solid #c9dde3;
  background: linear-gradient(160deg, rgba(15, 93, 111, 0.08), #fff);
}

.section-contact .card {
  border-color: #bfd8df;
}

.formal-note {
  font-size: 0.93rem;
  color: #4f5f78;
}

.ruping-theme .site-footer {
  background: #072f38;
}

@media (max-width: 980px) {
  .ruping-theme .hero-shell,
  .ruping-theme .hero-content {
    min-height: clamp(19rem, 60vh, 27rem);
  }

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

  .project-card img {
    height: 11rem;
  }
}