:root {
  color-scheme: light;
  --paper: #f4efe4;
  --paper-strong: #fbf8f0;
  --ink: #1f1b18;
  --ink-soft: #5d5449;
  --accent: #9b4f32;
  --line: rgba(31, 27, 24, 0.12);
  --shadow: 0 18px 48px rgba(54, 39, 29, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(155, 79, 50, 0.1), transparent 32%),
    linear-gradient(180deg, #e5ddd1 0%, #f4efe4 26%, #efe6d8 100%);
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", serif;
}

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

.project-shell {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-hero,
.info-card,
.content-card,
.excerpt-card {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), transparent 34%),
    var(--paper-strong);
  box-shadow: var(--shadow);
}

.project-hero {
  margin-top: 1rem;
  padding: 2rem;
}

.project-kicker {
  margin: 0;
  color: var(--accent);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.project-hero h1 {
  margin: 0.65rem 0 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.08;
}

.project-lead {
  max-width: 52rem;
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.9;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.4rem;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.75rem 1.1rem;
  border: 1px solid var(--line);
  background: rgba(31, 27, 24, 0.03);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.action-btn.primary {
  border-color: rgba(155, 79, 50, 0.28);
  background: rgba(155, 79, 50, 0.1);
  color: var(--accent);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.info-card,
.content-card,
.excerpt-card {
  padding: 1.5rem;
}

.info-card h2,
.content-card h2,
.excerpt-card h2 {
  margin: 0;
  font-size: 1.2rem;
}

.meta-list {
  display: grid;
  gap: 0.95rem;
  margin: 1rem 0 0;
}

.meta-list div {
  padding-top: 0.95rem;
  border-top: 1px dashed var(--line);
}

.meta-list dt {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meta-list dd {
  margin: 0.35rem 0 0;
  line-height: 1.8;
}

.highlight-list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--ink-soft);
  line-height: 1.9;
}

.content-card,
.excerpt-card {
  margin-top: 1rem;
}

.content-card p,
.excerpt-card p,
.excerpt-card blockquote {
  margin: 1rem 0 0;
  color: var(--ink-soft);
  line-height: 1.95;
}

.excerpt-card blockquote {
  margin: 1rem 0 0;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--accent);
  background: rgba(155, 79, 50, 0.06);
}

.doc-content {
  margin-top: 1rem;
}

.doc-content p {
  margin: 0.65rem 0;
  color: var(--ink-soft);
  line-height: 1.95;
  font-size: 0.95rem;
}

.doc-content .doc-title {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.doc-content .doc-heading {
  color: var(--ink);
  font-weight: 600;
}

.doc-content .doc-meta {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.doc-content .doc-alert {
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 760px) {
  .project-shell {
    width: min(100% - 1rem, 1100px);
    padding: 1rem 0 2rem;
  }

  .project-hero,
  .info-card,
  .content-card,
  .excerpt-card {
    padding: 1.2rem;
  }

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