:root {
  --bg: #121212;
  --line: rgba(255, 255, 255, 0.16);
  --line-strong: rgba(255, 255, 255, 0.34);
  --text: #d7d7d7;
  --text-muted: #969696;
  --red: #d84c3f;
  --accent: #d4d4d4;
  --radius: 24px;
  --nav-height: 64px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  font-family: "Saira Semi Condensed", "Avenir Next Condensed", "Arial Narrow", sans-serif;
  background: radial-gradient(1200px 700px at 76% 84%, #1b1b1b 0%, var(--bg) 58%);
  overflow-x: hidden;
}

body {
  padding: 20px;
}

.shell {
  position: relative;
  min-height: calc(100vh - 40px);
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(255, 255, 255, 0.01));
  overflow: hidden;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.13;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.16) 0.5px, transparent 0.5px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 4px);
  background-size: 3px 3px, 100% 4px;
  mix-blend-mode: overlay;
}

.content-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(12, 12, 12, 0.62) 0%, rgba(12, 12, 12, 0.4) 34%, rgba(12, 12, 12, 0.1) 58%, rgba(12, 12, 12, 0.02) 100%);
}

.articles-main {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 40px - var(--nav-height));
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: 24px;
  padding: 32px 26px;
}

.articles-list-wrap {
  border-right: 1px solid var(--line);
  padding-right: 18px;
}

.page-title {
  margin: 0;
  font-size: 1.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.page-sub {
  margin: 6px 0 14px;
  color: var(--text-muted);
  font-family: "Share Tech Mono", "SFMono-Regular", monospace;
  font-size: 0.85rem;
}

.articles-list {
  display: grid;
  gap: 8px;
}

.article-link {
  display: block;
  text-decoration: none;
  color: #c8c8c8;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.article-link:hover,
.article-link:focus-visible {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  color: #e5e5e5;
  outline: none;
}

.article-link.active {
  border-color: rgba(216, 76, 63, 0.5);
  background: rgba(216, 76, 63, 0.1);
  color: #efefef;
}

.article-title {
  display: block;
  font-size: 1.02rem;
  line-height: 1.25;
}

.article-meta {
  display: block;
  margin-top: 3px;
  color: #8f8f8f;
  font-size: 0.75rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-family: "Share Tech Mono", "SFMono-Regular", monospace;
}

.article-content {
  max-width: 860px;
  padding-right: 14px;
}

.article-content h1,
.article-content h2,
.article-content h3 {
  color: #e1e1e1;
  margin-top: 1.35em;
  margin-bottom: 0.45em;
  line-height: 1.2;
}

.article-content h1 {
  margin-top: 0;
  font-size: clamp(1.7rem, 2.8vw, 2.45rem);
}

.article-content h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
}

.article-content h3 {
  font-size: clamp(1.1rem, 1.9vw, 1.35rem);
}

.article-content p,
.article-content li {
  color: #cfcfcf;
  font-size: 1.05rem;
  line-height: 1.75;
}

.article-content ul,
.article-content ol {
  padding-left: 1.2em;
}

.article-content a {
  color: #dedede;
}

.loading,
.error {
  font-family: "Share Tech Mono", "SFMono-Regular", monospace;
  color: #9a9a9a;
}

@media (max-width: 900px) {
  .articles-main {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .articles-list-wrap {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding-right: 0;
    padding-bottom: 12px;
  }
}

@media (max-width: 640px) {
  body {
    padding: 10px;
  }

  .shell {
    min-height: calc(100vh - 20px);
  }

  .articles-main {
    min-height: calc(100vh - 20px - var(--nav-height));
    padding: 20px 14px 18px;
  }

  .article-content p,
  .article-content li {
    font-size: 1rem;
    line-height: 1.68;
  }
}