@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=SUIT:wght@300;400;500;600;700&display=swap');

:root {
  --bg: #121417;
  --bg-alt: #191d21;
  --panel: #171a1e;
  --panel-soft: #1d2228;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text-main: #edf1f4;
  --text-sub: #a0abb5;
  --text-dim: #66727d;
  --cyan: #6cd6df;
  --green: #9ad77b;
  --orange: #ffb15c;
  --yellow: #ffd76b;
  --rose: #ff8f8f;
  --slate: #b0bcc8;
  --mono: "IBM Plex Mono", monospace;
  --sans: "SUIT", sans-serif;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(108, 214, 223, 0.12), transparent 24%),
    linear-gradient(180deg, #101214 0%, #14171b 45%, #121417 100%);
  color: var(--text-main);
  font-family: var(--sans);
  line-height: 1.75;
}

a {
  color: inherit;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.6rem;
  border-bottom: 1px solid var(--border);
  background: rgba(18, 20, 23, 0.82);
  backdrop-filter: blur(14px);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  font-family: var(--mono);
}

.brand-mark {
  color: var(--cyan);
  font-size: 0.82rem;
}

.brand-text {
  color: var(--text-sub);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.2rem;
}

.nav-links a {
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--text-main);
}

.page-shell {
  width: min(1080px, calc(100% - 2.4rem));
  margin: 0 auto;
  padding: 3.2rem 0 5rem;
}

.narrow-shell {
  width: min(920px, calc(100% - 2.4rem));
}

.eyebrow,
.note-label,
.metric-name,
.topic-kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.9fr);
  gap: 1.4rem;
  align-items: start;
  margin-bottom: 3.5rem;
}

.hero-copy h1,
.page-hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  margin: 0.8rem 0 1rem;
}

.hero-summary {
  max-width: 700px;
  color: var(--text-sub);
  font-size: 1.03rem;
}

.hero-note,
.profile-panel,
.plain-card,
.summary-strip,
.empty-panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.hero-note,
.profile-panel,
.empty-panel {
  padding: 1.4rem;
}

.bullet-list {
  list-style: none;
  margin: 0.8rem 0 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.bullet-list li {
  position: relative;
  padding-left: 1rem;
  color: var(--text-sub);
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82rem;
  width: 0.38rem;
  height: 0.38rem;
  border-radius: 999px;
  background: var(--cyan);
}

.metric-grid,
.summary-strip,
.principle-grid,
.topic-grid {
  display: grid;
  gap: 1rem;
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-card,
.summary-item {
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
}

.metric-card strong,
.summary-item strong {
  display: block;
  margin-top: 0.45rem;
  font-size: 1.15rem;
}

.hero-actions,
.inline-links,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-actions {
  margin-top: 1.5rem;
}

.button,
.pill,
.inline-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.76rem;
}

.button.primary {
  background: var(--text-main);
  color: #121417;
}

.pill {
  color: var(--text-sub);
  background: rgba(255, 255, 255, 0.03);
}

.content-section {
  margin-bottom: 3.5rem;
}

.section-top {
  margin-bottom: 1.2rem;
}

.section-top h2 {
  margin-top: 0.45rem;
  font-size: 1.9rem;
}

.topic-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.topic-grid-wide {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tag-section {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.tag-tile {
  min-width: 120px;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.tag-tile:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
}

.topic-card {
  min-height: 190px;
  padding: 1.2rem;
  border-radius: 20px;
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--panel);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.topic-card:hover,
.post-row:hover,
.plain-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
}

.topic-card h3 {
  margin: 0.75rem 0 0.55rem;
  font-size: 1.12rem;
}

.topic-card p,
.post-row p,
.profile-panel p,
.plain-card p,
.info-block p,
.empty-panel p {
  color: var(--text-sub);
}

.topic-meta,
.post-link {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--text-dim);
}

.tone-cyan {
  box-shadow: inset 0 3px 0 0 var(--cyan);
}

.tone-orange {
  box-shadow: inset 0 3px 0 0 var(--orange);
}

.tone-yellow {
  box-shadow: inset 0 3px 0 0 var(--yellow);
}

.tone-green {
  box-shadow: inset 0 3px 0 0 var(--green);
}

.tone-rose {
  box-shadow: inset 0 3px 0 0 var(--rose);
}

.tone-slate {
  box-shadow: inset 0 3px 0 0 var(--slate);
}

.stack-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.post-row {
  display: block;
  padding: 1.25rem 1.3rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.post-row-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 0.85rem;
}

.post-date {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.post-row h3 {
  font-size: 1.14rem;
  margin-bottom: 0.35rem;
}

.page-hero {
  margin-bottom: 2.4rem;
}

.article-shell {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 1.6rem;
  box-shadow: var(--shadow);
}

.article-header {
  padding-bottom: 1.2rem;
  margin-bottom: 1.6rem;
  border-bottom: 1px solid var(--border);
}

.article-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  margin: 0.8rem 0 1rem;
}

.article-body {
  color: var(--text-sub);
}

.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--text-main);
  line-height: 1.3;
}

.article-body h2 {
  font-size: 1.55rem;
  margin: 2rem 0 0.9rem;
}

.article-body h3 {
  font-size: 1.2rem;
  margin: 1.6rem 0 0.7rem;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body blockquote,
.article-body pre {
  margin-bottom: 1rem;
}

.article-body ul,
.article-body ol {
  padding-left: 1.3rem;
}

.article-body li {
  margin-bottom: 0.35rem;
}

.article-body a {
  color: var(--cyan);
  text-decoration: none;
}

.article-body a:hover {
  text-decoration: underline;
}

.article-body code {
  font-family: var(--mono);
  font-size: 0.88em;
  color: var(--yellow);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.12rem 0.35rem;
}

.article-body pre {
  overflow-x: auto;
  padding: 1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #101316;
}

.article-body pre code {
  background: transparent;
  border: 0;
  color: var(--text-main);
  padding: 0;
}

.article-body blockquote {
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--cyan);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 0 12px 12px 0;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 1rem;
}

.stack-panel {
  display: grid;
  gap: 1rem;
}

.info-block {
  padding: 1.1rem 0;
  border-top: 1px solid var(--border);
}

.principle-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.plain-card {
  padding: 1.2rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.plain-card h3 {
  margin-bottom: 0.5rem;
}

.summary-strip {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0.9rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.4rem 1.6rem 2rem;
  color: var(--text-dim);
  text-align: center;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.site-footer a {
  color: var(--text-sub);
  text-decoration: none;
}

@media (max-width: 900px) {
  .hero-split,
  .two-column,
  .topic-grid,
  .principle-grid,
  .summary-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-nav {
    padding: 0.9rem 1rem;
    gap: 1rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    gap: 0.9rem;
    flex-wrap: wrap;
  }

  .page-shell,
  .narrow-shell {
    width: min(100% - 1.4rem, 1080px);
    padding-top: 2rem;
  }

  .hero-copy h1,
  .page-hero h1 {
    font-size: 2.5rem;
  }

  .post-row-head {
    flex-direction: column;
    align-items: flex-start;
  }
}