* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background: #0f1115;
  color: #e9edf3;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 14px;
}

a {
  color: #9fd4ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: rgba(10, 12, 16, 0.92);
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  z-index: 20;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 70px;
  gap: 20px;
}

.site-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}

.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: #d6dce5;
}

.project-page {
  padding-bottom: 60px;
}

.project-hero {
  padding: 48px 0 28px;
}

.back-link {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 0.95rem;
}

.project-kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: #8ea0b5;
  margin-bottom: 10px;
}

.project-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.1;
}

.project-tagline {
  font-size: 1.1rem;
  max-width: 700px;
  color: #c6cfdb;
  margin-bottom: 24px;
}

.project-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.meta-card {
  background: #171b22;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  padding: 14px 16px;
}

.meta-label {
  display: block;
  font-size: 0.8rem;
  color: #8ea0b5;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.meta-value {
  display: block;
  font-weight: 600;
  color: #fff;
}

.project-feature-image {
  padding: 0 0 30px;
}

.project-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
  gap: 28px;
  align-items: start;
}

.content-block,
.sidebar-card {
  background: #171b22;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 22px;
}

.content-block + .content-block,
.sidebar-card + .sidebar-card {
  margin-top: 20px;
}

.content-block h2,
.sidebar-card h3 {
  margin-top: 0;
  margin-bottom: 14px;
}

.project-main p,
.project-sidebar li {
  color: #d6dce5;
}

.project-sidebar ul {
  margin: 0;
  padding-left: 18px;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.download-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.download-list a {
  display: block;
  background: #10141b;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 12px 14px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-list span {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: #10141b;
  border: 1px solid rgba(255,255,255,0.08);
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  color: #9ba9ba;
  text-align: center;
}

@media (max-width: 860px) {
  .project-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-direction: column;
    justify-content: center;
    padding: 12px 0;
  }
}