/* =========================
   Content wrapper
   ========================= */

.content {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 25px 128px;
}

/* =========================
   Headings & intro
   ========================= */

.content .heading {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont,
               "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #6f6f6f;
  text-align: center;
}

.content .hero {
  margin-top: 0;
}

.content .tagline {
  font-size: 1.08rem;
  line-height: 1.6;
  color: #6a6a6a;
  text-align: center;
}

.content section {
  margin-top: 76px;
}

.content h2 {
  font-size: 1.25rem;
  font-family: "inter","Newsreader", Georgia, "Times New Roman", serif;
  font-weight: 600;
  margin: 0 0 20px 0;
}

.content p {
  font-size: 1.01rem;
  line-height: 1.65;
  margin: 0 0 22px 0;
  color: #1f1f1f;
}


/* =========================
   Lists
   ========================= */
.content .value-list {
  list-style: none;
  padding: 0;
  margin: 0 0 25px 0;
  max-width: 640px;
  display: grid;
  gap: 18px;
}

.content .value-list li {
  position: relative;
  padding-left: 22px;
  line-height: 1.6;
}

/* subtle vertical marker instead of bullet */

/* key philosophical phrase */
.content .value-list .key {
  position: relative;
  color: #000000;
  font-weight: 600;
  /*display: inline-block;*/
}
/* thin, short underline */
.content .value-list .key::after {
  content: "";
  position: absolute;
  left: 2px;
  bottom: 0px;        /* vertical offset from text */
  width: 95%;          /* makes it shorter than the text */
  height: 1px;         /* very thin line */
  background: #000000;
  opacity: 0.2;        /* softer SaaS feel */
}

/* explanatory continuation */
.content .value-list .rest {
  color: #6f6f6f;
}
.content .connections {
  list-style: none;
  margin: 0 0 28px 0;
  padding-left: 22px;
}

.content li {
  font-size: 1.04rem;
  line-height: 1.6;
  margin-bottom: 12px;
  color: #1f1f1f;
}


/* =========================
   Inline elements
   ========================= */

.content em {
  font-style: italic;
}

.content a {
  color: #6f6f6f;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.content a:hover {
  text-decoration-thickness: 2px;
}

/* =========================
   Social / misc
   ========================= */

.content .social {
  margin-top: 34px;
}

.content .research-heading {
  font-size: 32px;
  margin-bottom: 28px;
}

.content .tag-bar {
  display: flex;
  gap: 14px;
  margin-bottom: 36px;
}

.content .tag-bar button {
  color: #6f6f6f;
  background: none;
  border: none;
  font-size: 0.95rem;
  cursor: pointer;
}

.content .tag-bar button.active {
  color: #000;
  font-weight: 600;
}

/* --- Research card --- */
.content .research-item {
  margin-bottom: 42px;
  padding-bottom: 28px;
  border-bottom: 1px solid #6f6f6f;
}

/* --- Image square cover --- */
.content .research-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;     /* forces square */
  object-fit: cover;       /* crop instead of stretch */
  border-radius: 18px;
  margin-bottom: 18px;
  background: #111;        /* fallback while loading */
}

/* --- Meta line --- */
.content .meta {
  font-size: 0.82rem;
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

/* --- Title (clean research style) --- */
.content .research-item h2 {
  margin: 0 0 10px 0;
  font-size: 1.3rem;
  font-weight: 650;
  line-height: 1.35;
}

.content .research-item h2 a {
  /* dark headline */
  text-decoration: none;   /* remove underline */
}

/* --- Summary spacing --- */
.content .research-item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  max-width: 520px;
}
/* =========================
   Research index items
   ========================= */

.content .research-item {
  padding: 2.25rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

/* Meta row (type + date) */
.content .research-meta {
  font-size: 0.85rem;
  color: #8a8a8a;
  margin-bottom: 0.4rem;
  display: flex;
  gap: 0.75rem;
}

/* Optional separator dot feel */
.content .research-meta span:not(:last-child)::after {
  content: "·";
  margin-left: 0.75rem;
}
.content .research-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.content .research-link:hover .research-title {
  text-decoration: underline;
}

.content .research-link:hover {
  cursor: pointer;
}
/* Summary */
.content .research-summary {
  line-height: 1.6;
  margin: 0;
}


.content .paper-title {
  font-size: 32px;
  font-weight: 600;
  text-align: center;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 40px;
}
.content .paper-abstract {
  margin-bottom: 64px;
}

.content .paper-abstract h2 {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #666;
  margin-bottom: 16px;
}

.content .paper-abstract p {
  color: #222;
}

.content .introduction h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-top: 72px;
  margin-bottom: 20px;
}

.content .body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 48px;
  margin-bottom: 12px;
}

.content .body h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 8px;
}

/* ----------------------------
   Paragraphs
----------------------------- */

.content .body p {
  margin-bottom: 22px;
}

/* ----------------------------
   Emphasis & Quotes
----------------------------- */

.content blockquote {
  margin: 32px 0;
  padding-left: 20px;
  border-left: 2px solid #ddd;
  color: #444;
  font-style: italic;
}

/* ----------------------------
   Inline Citations
----------------------------- */

.content .citation {
  color: #6f6f6f;              /* soft grey, not default blue */
  text-decoration: none;
  font-size: 0.7em;
  position: relative;
  vertical-align: super;
  line-height: 0;    /* Prevents the superscript from adding extra height to the line */
  transition: color 0.2s ease, opacity 0.2s ease;
  opacity: 0.8;
}

/* thin underline that appears on hover */
.content .citation::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

/* hover interaction */
.content .citation:hover {
  color: #000000;              /* becomes epistemically “active” */
  opacity: 1;
}

.content .citation:hover::after {
  transform: scaleX(1);        /* smooth reveal underline */
}

/* ----------------------------
   References
----------------------------- */

.paper-references {
  margin-top: 96px;
  padding-top: 48px;
  border-top: 1px solid #eee;
}

.paper-references h2 {
  font-size: 1.2rem;
  margin-bottom: 24px;
}

.paper-references ol {
  padding-left: 18px;
}

.paper-references li {
  font-size: 0.95rem;
  margin-bottom: 14px;
  color: #333;
}

/* ----------------------------
   Links
----------------------------- */

.content a {
  color: #111;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content a:hover {
  text-decoration-thickness: 2px;
}

/* ----------------------------
   Mobile Tuning
----------------------------- */

@media (max-width: 640px) {
  .content {
    padding: 72px 18px 120px;
  }

  .paper-title {
    font-size: 1.9rem;
  }

  .content h2 {
    font-size: 1.3rem;
  }
}