/* ============================================================
   Hamed Khosravi — personal site
   Single stylesheet, no build step, no external requests.
   ============================================================ */

:root {
  --bg:        #ffffff;
  --surface:   #f7f7f5;
  --text:      #22262b;
  --muted:     #6b7280;
  --faint:     #9aa1ab;
  --rule:      #e4e4e0;
  --accent:    #9c5221;   /* warm rust — reads as ink, not decoration */
  --accent-bg: #f4ece5;
  --maxw:      1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #16181c;
    --surface:   #1e2126;
    --text:      #dfe2e6;
    --muted:     #9aa1ab;
    --faint:     #757d88;
    --rule:      #2c3037;
    --accent:    #d79a6e;
    --accent-bg: #2a221c;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 16.5px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* ------------------------------------------------------------
   Layout — sidebar + content, collapses to a single column
   ------------------------------------------------------------ */

.layout {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 4rem 1.75rem 3rem;
  display: grid;
  grid-template-columns: 232px 1fr;
  gap: 3.75rem;
  align-items: start;
}

.sidebar { position: sticky; top: 3rem; text-align: center; }

/* --- avatar --- */
.avatar {
  width: 168px;
  height: 168px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto 1.15rem;
  border: 1px solid var(--rule);
}

.avatar-fallback {
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 3.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- identity block --- */
.name {
  font-size: 1.42rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  margin: 0 0 0.25rem;
  line-height: 1.25;
}

.role {
  margin: 0 0 0.7rem;
  font-size: 0.93rem;
  color: var(--accent);
  font-weight: 500;
}

.affil {
  margin: 0 0 1.35rem;
  font-size: 0.845rem;
  line-height: 1.55;
  color: var(--muted);
}

/* --- link list --- */
.links {
  list-style: none;
  margin: 0;
  padding: 1.2rem 0 0;
  border-top: 1px solid var(--rule);
  font-size: 0.875rem;
  text-align: left;
}

.links li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.52rem;
}

.links .ic {
  color: var(--faint);
  width: 15px;
  height: 15px;
  flex: none;
  position: relative;
  top: 2px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.links li:hover .ic { color: var(--accent); }

.links a { color: var(--text); }
.links a:hover { color: var(--accent); }

/* ------------------------------------------------------------
   Content
   ------------------------------------------------------------ */

.content { min-width: 0; max-width: 44rem; }

section { margin-bottom: 2.9rem; }

h2 {
  font-size: 0.795rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--muted);
  margin: 0 0 1.05rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

p { margin: 0 0 1.05rem; }

.lede { font-size: 1.05rem; }

.cta {
  padding: 0.85rem 1.05rem;
  background: var(--surface);
  border-left: 2px solid var(--accent);
  border-radius: 0 4px 4px 0;
  font-size: 0.95rem;
  margin-bottom: 0;
}

.note {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: -0.45rem;
  margin-bottom: 1.15rem;
}

.interests {
  color: var(--text);
  margin-bottom: 0;
  font-size: 0.965rem;
}

/* --- Academic service --- */
.service-line {
  display: grid;
  grid-template-columns: 7.6rem 1fr;
  gap: 0.95rem;
  margin-bottom: 0.7rem;
  font-size: 0.945rem;
  line-height: 1.6;
}

.service-line:last-child { margin-bottom: 0; }

.service-label {
  color: var(--faint);
  font-size: 0.83rem;
  letter-spacing: 0.01em;
}

/* Single child so inline <em>/<strong> don't each become grid items. */
.service-body { line-height: 1.6; }

/* --- News --- */
.news { list-style: none; margin: 0; padding: 0; font-size: 0.945rem; }

.news li {
  display: grid;
  grid-template-columns: 4.2rem 1fr;
  gap: 0.95rem;
  margin-bottom: 0.62rem;
}

.news .item { line-height: 1.6; }

.date {
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  font-size: 0.83rem;
  letter-spacing: 0.01em;
}

/* --- Publications --- */
.pubs {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: pub;
}

.pubs li {
  position: relative;
  padding-left: 2.1rem;
  margin-bottom: 1.4rem;
  counter-increment: pub;
}

.pubs li::before {
  content: counter(pub) ".";
  position: absolute;
  left: 0;
  top: 0.06rem;
  color: var(--faint);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.pubs .title {
  display: block;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 0.13rem;
}

.pubs .authors {
  display: block;
  font-size: 0.895rem;
  color: var(--muted);
}

.pubs .authors strong { color: var(--text); font-weight: 600; }

.pubs .venue {
  display: block;
  font-size: 0.875rem;
  color: var(--faint);
  font-style: italic;
}

.pubs .eqnote {
  display: block;
  font-size: 0.815rem;
  color: var(--faint);
  margin-top: 0.1rem;
}

.pubs .authors sup { font-size: 0.72em; }

.pubs .tags { display: block; margin-top: 0.38rem; }

.pubs .tags a {
  display: inline-block;
  font-size: 0.755rem;
  font-weight: 600;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  padding: 0.14rem 0.55rem;
  margin-right: 0.36rem;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--muted);
}

.pubs .tags a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-bg);
  text-decoration: none;
}

/* --- Timeline (experience / awards) --- */
.timeline { list-style: none; margin: 0; padding: 0; font-size: 0.945rem; }

.timeline li {
  display: grid;
  grid-template-columns: 7.6rem 1fr;
  gap: 0.95rem;
  margin-bottom: 0.85rem;
}

.timeline .what { line-height: 1.55; }

.timeline .detail {
  grid-column: 2;
  font-size: 0.885rem;
  color: var(--muted);
  margin-top: 0.22rem;
  line-height: 1.6;
}

/* --- Footer --- */
footer {
  margin-top: 3.5rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--rule);
  font-size: 0.83rem;
  color: var(--faint);
}

footer p { margin: 0; }

/* ------------------------------------------------------------
   Responsive
   ------------------------------------------------------------ */

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding: 2.5rem 1.35rem 2.5rem;
  }

  .sidebar { position: static; max-width: 25rem; margin: 0 auto; }

  .avatar { width: 132px; height: 132px; }
  .avatar-fallback { font-size: 2.6rem; }

  .links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.35rem 1.15rem;
  }
  .links li { margin-bottom: 0; }

  .content { max-width: none; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }

  .news li,
  .timeline li,
  .service-line { grid-template-columns: 1fr; gap: 0.1rem; }
  .news li { margin-bottom: 0.85rem; }
  .service-line { margin-bottom: 0.85rem; }
  .timeline .detail { grid-column: 1; }
}

/* ------------------------------------------------------------
   Print
   ------------------------------------------------------------ */

@media print {
  .layout { display: block; max-width: none; padding: 0; }
  .sidebar { text-align: left; margin-bottom: 1.5rem; }
  a { color: inherit; text-decoration: none; }
  .cta { display: none; }
}