/* ============================================
   Dr. Erdem Uçar — Academic Site
   Palette derived from the JOTS cover (Franz Steiner Verlag):
   steel blue + parchment white + ink navy — light theme
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --paper:      #FAF7F0;
  --panel:      #FFFFFF;
  --rule:       #E4DFD1;
  --ink:        #1E2B36;
  --ink-soft:   #47555F;
  --steel:      #4A7FA5;
  --steel-dark: #35566E;
  --steel-pale: #E7EFF4;
  --text-muted: #7B8790;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --max-w: 880px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18.5px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--steel-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--steel);
  outline-offset: 3px;
}

img { max-width: 100%; display: block; }

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }

header.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav-row {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.site-name {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.site-name span { color: var(--steel-dark); font-weight: 400; }

nav.main-nav { display: flex; gap: 22px; flex-wrap: wrap; }

nav.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--steel-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--steel-dark);
}

.band {
  background: var(--steel);
  color: #fff;
  display: inline-block;
  padding: 5px 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}

.hero { padding: 64px 0; border-bottom: 1px solid var(--rule); }

.hero-flex {
  display: flex;
  align-items: center;
  gap: 40px;
}

.portrait {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--panel);
  box-shadow: 0 0 0 1px var(--rule);
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .hero-flex {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .portrait { width: 100px; height: 100px; }
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  line-height: 1.15;
  margin: 0 0 20px;
  color: var(--ink);
  max-width: 17ch;
}

.hero h1 .accent { color: var(--steel-dark); }

.hero p.lede {
  font-size: 1.24rem;
  color: var(--ink-soft);
  max-width: 58ch;
  margin: 0 0 30px;
  line-height: 1.6;
}

.hero-links { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid var(--steel);
  color: var(--ink);
  background: transparent;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn:hover { background: var(--steel-pale); text-decoration: none; }

.btn.primary { background: var(--steel); border-color: var(--steel); color: #fff; }

.btn.primary:hover { background: var(--steel-dark); border-color: var(--steel-dark); color: #fff; }

section { padding: 56px 0; border-bottom: 1px solid var(--rule); }
section:last-of-type { border-bottom: none; }

h2.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.8rem;
  color: var(--ink);
  margin: 0 0 8px;
}

p.section-intro { color: var(--ink-soft); max-width: 62ch; margin: 0 0 34px; }
p.section-intro.justify { text-align: justify; }

h3 { font-family: var(--font-display); font-weight: 600; color: var(--ink); }

ul.plain-list { margin: 0; padding: 0; list-style: none; }

ul.plain-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 1rem;
}

ul.plain-list li:last-child { border-bottom: none; }
ul.plain-list li strong { color: var(--ink); font-weight: 600; }

ul.tag-list {
  columns: 2;
  column-gap: 40px;
  margin: 0;
  padding: 0;
  list-style: none;
}

ul.tag-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.98rem;
  font-weight: 400;
  color: var(--ink-soft);
  break-inside: avoid;
}

@media (max-width: 640px) {
  ul.tag-list { columns: 1; }
}

.grid { display: grid; gap: 20px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 640px) { .grid.cols-2 { grid-template-columns: 1fr; } }

.card { background: var(--panel); border: 1px solid var(--rule); padding: 22px; }
.card h3 { font-size: 1.05rem; margin: 0 0 8px; }
.card p { color: var(--ink-soft); font-size: 0.95rem; margin: 0; }

.news-item {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid var(--rule);
}

.news-item:last-child { border-bottom: none; }
.news-item img { width: 100%; border: 1px solid var(--rule); }

.news-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--steel-dark);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.news-item h3 { font-size: 1.15rem; margin: 4px 0 10px; }

.citation {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--ink-soft);
  border-left: 2px solid var(--steel);
  padding-left: 12px;
  margin: 10px 0;
}

.news-item .body-text { color: var(--ink-soft); font-size: 0.95rem; margin: 0 0 8px; }

@media (max-width: 560px) {
  .news-item { grid-template-columns: 1fr; }
  .news-item img { max-width: 160px; }
}

.book-card { display: grid; grid-template-columns: 130px 1fr; gap: 22px; align-items: start; }
.book-card img { border: 1px solid var(--rule); }

@media (max-width: 520px) {
  .book-card { grid-template-columns: 1fr; }
  .book-card img { max-width: 160px; }
}

.book-card .book-meta {
  font-family: var(--font-mono);
  font-size: 0.83rem;
  color: var(--ink-soft);
  margin: 6px 0 10px;
}

.pub-category { margin-bottom: 40px; }

.pub-category h3 {
  font-size: 1.1rem;
  color: var(--steel-dark);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 8px;
  margin-bottom: 18px;
}

ol.pub-list { list-style: none; margin: 0; padding: 0; counter-reset: pub; }

ol.pub-list li {
  counter-increment: pub;
  padding: 14px 0 14px 44px;
  position: relative;
  border-bottom: 1px solid var(--rule);
  font-size: 1.02rem;
  color: var(--ink-soft);
}

ol.pub-list li:last-child { border-bottom: none; }

ol.pub-list li::before {
  content: counter(pub);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--steel);
}

ol.pub-list li strong.t { color: var(--ink); font-weight: 600; }
.pub-list .pub-venue { color: var(--text-muted); }

.pub-list .doi {
  display: inline-block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.cv-block { margin-bottom: 34px; }

.cv-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.95rem;
}

.cv-row:last-child { border-bottom: none; }

@media (max-width: 560px) {
  .cv-row { grid-template-columns: 1fr; gap: 4px; }
}

.cv-row .yr { font-family: var(--font-mono); color: var(--steel-dark); font-size: 0.85rem; }
.cv-row .desc { color: var(--ink-soft); }
.cv-row .desc strong { color: var(--ink); font-weight: 600; }

.contact-list { list-style: none; padding: 0; margin: 0; }

.contact-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
}

.contact-list li:last-child { border-bottom: none; }

.contact-list .label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

footer { padding: 40px 0 60px; }
footer p { color: var(--text-muted); font-size: 0.85rem; font-family: var(--font-mono); font-weight: 600; text-align: center; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }