/* Ringside Analytics — portfolio site styles
 * Dark theme, data-forward. One file styles index.html + paper.html.
 */

:root {
  --bg:        #0f1115;
  --bg-card:   #161922;
  --bg-code:   #1c2029;
  --text:      #e6e8ee;
  --text-dim:  #9ba0ad;
  --accent:    #c9352d;        /* the wrestling-red from the figures */
  --accent-bg: rgba(201, 53, 45, 0.10);
  --border:    #2a2f3c;
  --link:      #ff6b6b;
  --link-hov:  #ff8a8a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
  padding: 0;
}

/* Layout */
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

.container-wide {
  max-width: 1100px;
}

/* Hero / landing page */
.hero {
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.15;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-dim);
  margin: 0 0 1.5rem;
}

.hero .meta {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* Section + card grid */
.section {
  margin-bottom: 3rem;
}

.section h2 {
  font-size: 1.5rem;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  transition: border-color 0.15s, transform 0.15s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0 0 0.75rem;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.card a {
  color: var(--link);
  text-decoration: none;
  font-weight: 500;
}

.card a:hover { color: var(--link-hov); }

.card .badge {
  display: inline-block;
  font-size: 0.75rem;
  background: var(--accent-bg);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 0.5rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* Stats banner */
.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.stat .num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
}

.stat .label {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Generic typography */
h1, h2, h3, h4 {
  color: var(--text);
  font-weight: 600;
}

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 1rem; }
h2 { font-size: 1.6rem; margin: 2.5rem 0 1rem; padding-bottom: 0.3rem; border-bottom: 1px solid var(--border); }
h3 { font-size: 1.2rem; margin: 1.8rem 0 0.6rem; }
h4 { font-size: 1.05rem; margin: 1.4rem 0 0.5rem; color: var(--text-dim); }

p { margin: 0 0 1rem; }

a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s, color 0.15s;
}

a:hover {
  color: var(--link-hov);
  border-bottom-color: var(--link-hov);
}

/* Code */
code {
  font-family: "JetBrains Mono", "SF Mono", Consolas, Monaco, monospace;
  background: var(--bg-code);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.9em;
  color: #ffd0cd;
}

pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  line-height: 1.5;
  font-size: 0.85rem;
}

pre code {
  background: transparent;
  padding: 0;
  color: var(--text);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.92rem;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--bg-card);
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.78rem;
}

tr:hover td { background: rgba(255,255,255,0.02); }

/* Blockquote */
blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-dim);
  font-style: italic;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  margin: 1.5rem 0;
  display: block;
  background: white;            /* matplotlib figs have transparent bg; white pad reads better in dark theme */
  padding: 0.5rem;
}

figure {
  margin: 1.5rem 0;
  text-align: center;
}

figcaption {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-top: 0.5rem;
  font-style: italic;
}

/* TOC styling (pandoc default class) */
nav#TOC {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.5rem;
  margin: 1.5rem 0 2.5rem;
  font-size: 0.92rem;
}

nav#TOC ul { padding-left: 1.2rem; margin: 0.4rem 0; }
nav#TOC > ul { padding-left: 1rem; }
nav#TOC li { margin: 0.25rem 0; }
nav#TOC > ul > li > a { font-weight: 600; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding-top: 1.5rem;
  color: var(--text-dim);
  font-size: 0.88rem;
  text-align: center;
}

/* Buttons / CTA */
.cta {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: 600;
  margin: 0.5rem 0.5rem 0.5rem 0;
  border: none;
}

.cta:hover {
  background: #d44a42;
  color: white;
  border-bottom-color: transparent;
}

.cta.ghost {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}

.cta.ghost:hover {
  background: var(--accent-bg);
  color: var(--accent);
  border-bottom-color: transparent;
}

/* Responsive */
@media (max-width: 640px) {
  .container { padding: 2rem 1rem 3rem; }
  .hero h1 { font-size: 2rem; }
  .stats { gap: 1.2rem; padding: 1rem; }
  .stat .num { font-size: 1.4rem; }
}