@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=JetBrains+Mono:wght@300;400;500&display=swap');

:root {
  --bg: #0a0a0f;
  --bg2: #111118;
  --fg: #e8e4de;
  --fg-dim: #8a8680;
  --accent: #c9a96e;
  --accent2: #6ea5c9;
  --accent3: #c96e8a;
  --serif: 'EB Garamond', Georgia, serif;
  --mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg);
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* ─── NAV ─── */
.note-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.note-nav a {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-decoration: none;
  letter-spacing: 0.08em;
  transition: color 0.3s;
}

.note-nav a:hover { color: var(--accent); }

.note-tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 12px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 20px;
}

.note-tag[data-tag="Machine Learning"] { color: var(--accent2); border-color: rgba(110,165,201,0.3); }
.note-tag[data-tag="Technology"] { color: var(--accent); border-color: rgba(201,169,110,0.3); }
.note-tag[data-tag="Introspection"] { color: var(--accent3); border-color: rgba(201,110,138,0.3); }

/* ─── ARTICLE ─── */
.note-article {
  max-width: 740px;
  margin: 0 auto;
  padding: 80px 24px 120px;
}

.note-article header {
  margin-bottom: 48px;
}

.note-article .note-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 16px;
}

.note-article h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--fg);
}

.note-article h2 {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--fg);
  margin: 48px 0 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(201,169,110,0.15);
}

.note-article h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--fg);
  margin: 36px 0 16px;
}

.note-article h4 {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin: 28px 0 12px;
}

.note-article p {
  font-size: 1.1rem;
  color: var(--fg);
  margin-bottom: 1.2em;
  line-height: 1.8;
}

.note-article a {
  color: var(--accent2);
  text-decoration: none;
  border-bottom: 1px solid rgba(110,165,201,0.3);
  transition: all 0.3s;
}

.note-article a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ─── LISTS ─── */
.note-article ul, .note-article ol {
  margin: 0 0 1.2em 1.5em;
  font-size: 1.05rem;
  color: var(--fg);
}

.note-article li {
  margin-bottom: 0.5em;
  line-height: 1.7;
}

.note-article li ul, .note-article li ol {
  margin-top: 0.4em;
  margin-bottom: 0.4em;
}

/* ─── BLOCKQUOTE ─── */
.note-article blockquote {
  border-left: 3px solid var(--accent);
  margin: 24px 0;
  padding: 16px 24px;
  background: rgba(201,169,110,0.04);
  border-radius: 0 8px 8px 0;
}

.note-article blockquote p {
  font-style: italic;
  color: var(--fg-dim);
  margin-bottom: 0.5em;
}

.note-article blockquote p:last-child { margin-bottom: 0; }

/* ─── CODE ─── */
.note-article code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--bg2);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--accent2);
}

.note-article pre {
  background: var(--bg2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 20px 24px;
  margin: 24px 0;
  overflow-x: auto;
  position: relative;
}

.note-article pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--fg);
}

/* ─── IMAGES ─── */
.note-article img {
  max-width: 100%;
  border-radius: 10px;
  margin: 24px 0;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.06);
}

.note-article figure {
  margin: 32px 0;
  text-align: center;
}

.note-article figcaption {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-dim);
  margin-top: 8px;
}

/* ─── TABLES ─── */
.note-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
}

.note-article th {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-align: left;
  padding: 10px 16px;
  border-bottom: 2px solid rgba(201,169,110,0.2);
  background: var(--bg2);
}

.note-article td {
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  color: var(--fg);
  vertical-align: top;
}

.note-article tr:hover td {
  background: rgba(255,255,255,0.02);
}

/* ─── MATH (KaTeX overrides) ─── */
.katex { color: var(--fg); }
.katex-display {
  margin: 24px 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 8px 0;
}

/* ─── HR ─── */
.note-article hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--fg-dim), transparent);
  opacity: 0.2;
  margin: 48px 0;
}

/* ─── KEY IDEAS BOX ─── */
.key-ideas {
  background: var(--bg2);
  border: 1px solid rgba(110,165,201,0.15);
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
}

.key-ideas h4 {
  margin-top: 0;
  color: var(--accent2);
}

/* ─── FOOTER ─── */
.note-footer {
  max-width: 740px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.note-footer a {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-decoration: none;
  letter-spacing: 0.08em;
  transition: color 0.3s;
}

.note-footer a:hover { color: var(--accent); }

/* ─── RESPONSIVE ─── */
@media (max-width: 600px) {
  .note-nav { padding: 12px 16px; }
  .note-article { padding: 48px 16px 80px; }
  .note-article pre { padding: 14px 16px; }
  .note-article table { font-size: 0.85rem; }
  .note-article th, .note-article td { padding: 8px 10px; }
}