/* ---------------------------------------------------------
   Tugay Kaçak — personal site
   Custom styling on top of the Bootstrap "cosmo" theme
   --------------------------------------------------------- */

:root {
  --ink: #1c2321;
  --soft: #5f6d69;
  --accent: #14554c;
  --accent-soft: #e6efec;
  --line: #e2e0da;
  --paper: #ffffff;
}

body {
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
}

.main-container {
  max-width: 980px;
}

/* ---------- Navbar ---------- */
.navbar-default {
  background-color: var(--accent);
  border: 0;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .08);
}
.navbar-default .navbar-brand,
.navbar-default .navbar-nav > li > a {
  color: #ffffff;
  font-weight: 500;
}
.navbar-default .navbar-brand {
  font-weight: 700;
  letter-spacing: -.01em;
}
.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover,
.navbar-default .navbar-nav > .active > a:focus {
  background-color: rgba(255, 255, 255, .14);
  color: #ffffff;
}

/* ---------- Headings ---------- */
h1.title {
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 24px;
}
h2 {
  margin-top: 44px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-size: 1.6rem;
  font-weight: 600;
}
h3 {
  margin-top: 28px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent);
}

a {
  color: var(--accent);
}
a:hover {
  color: #0d3a34;
}

hr {
  border-top: 1px solid var(--line);
  margin: 36px 0;
}

/* ---------- Home hero ---------- */
.hero {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.hero-text {
  flex: 1 1 420px;
}
.hero-photo {
  flex: 0 0 180px;
  text-align: center;
}
.hero-photo img {
  width: 170px;
  height: 170px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 20px 0;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
  transition: border-color .15s ease;
}
.card:hover {
  border-color: var(--accent);
}
.card h3 {
  margin-top: 0;
  font-size: 1.05rem;
}

/* ---------- Publication numbering ---------- */
sup {
  color: var(--accent);
  font-weight: 600;
  margin-right: 4px;
}

/* ---------- Status tags ---------- */
.tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}
.tag.review   { background: #fdf0d9; color: #8a5c07; }
.tag.revision { background: #e6efec; color: #14554c; }
.tag.prep     { background: #eceff1; color: #4a5658; }

/* ---------- Tables ---------- */
table {
  width: 100%;
  margin: 18px 0;
  border-collapse: collapse;
}
th, td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
th {
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--soft);
}

/* ---------- Small screens ---------- */
@media (max-width: 700px) {
  .hero-photo {
    flex: 1 1 100%;
    text-align: left;
  }
}