/* ---------------------------------------------------------------
   Munsif Sokiyna — Academic site
   Design tokens
--------------------------------------------------------------- */
:root {
  --bg: #FAF9F6;
  --bg-alt: #F2EEE4;
  --surface: #FFFFFF;
  --border: #E4DFD2;

  --text: #1C2430;
  --text-muted: #5B6472;
  --text-soft: #838C99;

  --navy: #10243E;
  --navy-2: #17324F;
  --accent: #A9721F;
  --accent-soft: #F3E6CE;
  --accent-strong: #8A5C16;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(16,36,62,0.04), 0 8px 24px rgba(16,36,62,0.06);
  --shadow-lg: 0 4px 8px rgba(16,36,62,0.05), 0 20px 48px rgba(16,36,62,0.10);

  --font-serif: "Lora", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --maxw: 1080px;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 0.5em;
  font-weight: 600;
}

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

p { margin: 0 0 1em; color: var(--text); }

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }
section + section { border-top: 1px solid var(--border); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 10px;
}

.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head h2 { font-size: 2rem; }
.section-head p { color: var(--text-muted); font-size: 1.05rem; }

/* ---------------------------------------------------------------
   Buttons
--------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); box-shadow: var(--shadow); }

.btn-outline { background: transparent; color: var(--navy); border-color: var(--border); }
.btn-outline:hover { border-color: var(--navy); }

.btn-accent { background: var(--accent-soft); color: var(--accent-strong); }
.btn-accent:hover { background: #ecd8b0; }

/* ---------------------------------------------------------------
   Header / Nav
--------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.88);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--navy);
}
.brand .mark {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 700;
}
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 500;
}
.nav-links a:hover { color: var(--accent-strong); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: transform .2s ease, opacity .2s ease;
}

@media (max-width: 780px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height .25s ease;
  }
  .nav-links.open { max-height: 400px; }
  .nav-links li { border-top: 1px solid var(--border); }
  .nav-links a { display: block; padding: 14px 24px; }
}

/* ---------------------------------------------------------------
   Hero
--------------------------------------------------------------- */
.hero {
  padding: 88px 0 96px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}
.hero-eyebrow {
  color: var(--accent-strong);
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  margin-bottom: 14px;
}
.hero .role {
  font-size: 1.15rem;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 6px;
}
.hero .dept {
  color: var(--text-muted);
  margin-bottom: 22px;
  font-size: 1rem;
}
.hero .tagline {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 46ch;
  margin-bottom: 30px;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-photo-wrap {
  position: relative;
  justify-self: center;
}
.hero-photo {
  width: 300px; height: 300px;
  border-radius: 50%;
  object-fit: cover;
  border: 6px solid var(--surface);
  box-shadow: var(--shadow-lg);
}
.hero-photo-ring {
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1.5px dashed var(--accent);
  opacity: .55;
}

@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-ctas { justify-content: center; }
  .hero-photo-wrap { order: -1; }
  .hero-photo { width: 200px; height: 200px; }
}

/* ---------------------------------------------------------------
   About
--------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 0; }
.tag {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 999px;
}

.snapshot { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.snapshot h3 { font-size: 1.05rem; margin-bottom: 16px; }
.snapshot-list { list-style: none; margin: 0 0 24px; padding: 0; }
.snapshot-list li {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
}
.snapshot-list li:first-child { border-top: none; }
.snapshot-list .k { color: var(--text-muted); }
.snapshot-list .v { color: var(--text); font-weight: 500; text-align: right; }

.timeline-mini { list-style: none; margin: 0; padding: 0; }
.timeline-mini li {
  padding: 10px 0 10px 18px;
  border-left: 2px solid var(--border);
  margin-left: 3px;
  position: relative;
  font-size: 0.9rem;
}
.timeline-mini li::before {
  content: "";
  position: absolute;
  left: -5px; top: 15px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.timeline-mini .yr { color: var(--text-soft); font-size: 0.8rem; display: block; }

@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------
   News / Milestones
--------------------------------------------------------------- */
.news-list { list-style: none; margin: 0; padding: 0; }
.news-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--border);
}
.news-item:first-child { border-top: none; }
.news-date { color: var(--text-soft); font-size: 0.88rem; padding-top: 3px; }
.news-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent-strong);
  background: var(--accent-soft);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.news-item h3 { font-size: 1.1rem; margin-bottom: 6px; }
.news-item p { color: var(--text-muted); margin: 0; font-size: 0.96rem; }

@media (max-width: 640px) {
  .news-item { grid-template-columns: 1fr; gap: 6px; }
}

/* ---------------------------------------------------------------
   Research / Publications
--------------------------------------------------------------- */
.pub-group { margin-bottom: 44px; }
.pub-group h3 {
  font-size: 1.1rem;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--navy);
  margin-bottom: 20px;
}
.pub-list { list-style: none; margin: 0; padding: 0; }
.pub-item {
  padding: 16px 0;
  border-top: 1px solid var(--border);
  font-size: 0.96rem;
}
.pub-item:first-child { border-top: none; }
.pub-item .authors { color: var(--text); }
.pub-item .title { font-weight: 600; color: var(--navy); }
.pub-item .venue { color: var(--text-muted); font-style: italic; }
.pub-status {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--bg-alt);
  color: var(--text-muted);
  margin-left: 8px;
  vertical-align: middle;
}

/* ---------------------------------------------------------------
   Teaching
--------------------------------------------------------------- */
.stat-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin: 28px 0 40px;
}
.stat { min-width: 120px; }
.stat .num { font-family: var(--font-serif); font-size: 1.9rem; color: var(--navy); font-weight: 700; }
.stat .label { color: var(--text-muted); font-size: 0.85rem; }

.course-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.course-table th, .course-table td {
  text-align: left;
  padding: 14px 18px;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--border);
}
.course-table th {
  background: var(--bg-alt);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: .04em;
}
.course-table tr:last-child td { border-bottom: none; }

/* ---------------------------------------------------------------
   Contact
--------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}
.contact-card h4 { font-size: 0.98rem; margin-bottom: 6px; }
.contact-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 14px; }
.contact-card a.btn { width: 100%; justify-content: center; }

/* ---------------------------------------------------------------
   Footer
--------------------------------------------------------------- */
.site-footer {
  background: var(--navy);
  color: #C9D2DE;
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand { font-family: var(--font-serif); color: #fff; font-size: 1.05rem; }
.footer-links { display: flex; gap: 18px; list-style: none; margin: 0; padding: 0; }
.footer-links a {
  color: #C9D2DE;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.18);
  display: flex; align-items: center; justify-content: center;
}
.footer-links a:hover { border-color: var(--accent); color: var(--accent-soft); text-decoration: none; }
.footer-copy { color: #8496AC; font-size: 0.82rem; margin-top: 22px; text-align: center; }

/* ---------------------------------------------------------------
   Reveal-on-scroll
--------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* Skip link for accessibility */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--navy); color: #fff; padding: 10px 16px; z-index: 200;
}
.skip-link:focus { left: 12px; top: 12px; }