* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: #f0f6fd;
  color: #1a2433;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── NAV ── */
.nav {
  background: #042C53;
  padding: 14px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(4,44,83,0.35);
}

.nav-logo {
  color: #85B7EB;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-links a {
  color: #B5D4F4;
  font-size: 13px;
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active { color: #fff; }

/* Dropdown */
.nav-dropdown { position: relative; }

.nav-dropdown > a::after {
  content: ' ▾';
  font-size: 10px;
  opacity: 0.7;
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 14px);
  right: 0;
  background: #042C53;
  border: 0.5px solid rgba(133,183,235,0.25);
  border-radius: 8px;
  padding: 6px 0;
  min-width: 210px;
  box-shadow: 0 8px 24px rgba(4,44,83,0.45);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu { display: block; }

.nav-dropdown-menu a {
  display: block;
  padding: 8px 16px;
  color: #B5D4F4;
  font-size: 12px;
  text-decoration: none;
  transition: background 0.15s;
}

.nav-dropdown-menu a:hover {
  background: rgba(133,183,235,0.1);
  color: #fff;
}

/* ── HERO (home) ── */
.hero {
  background: linear-gradient(135deg, #0C447C 0%, #185FA5 60%, #378ADD 100%);
  padding: 56px 48px 48px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.hero-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: #E6F1FB;
  border: 3px solid #85B7EB;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 500;
  color: #0C447C;
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-text h1 {
  color: #fff;
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 8px;
}

.hero-text > p {
  color: #B5D4F4;
  font-size: 13px;
  line-height: 1.75;
  max-width: 500px;
}

.hero-badges {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.badge {
  background: rgba(255,255,255,0.12);
  color: #E6F1FB;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 99px;
  border: 0.5px solid rgba(133,183,235,0.4);
}

/* ── HERO RESUME BUTTONS ── */
.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-left: auto;
  flex-shrink: 0;
}

.resume-btn {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: 8px;
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
  transition: opacity 0.15s;
  background: #fff;
  color: #0C447C;
  border: none;
}

.resume-btn-outline {
  background: transparent;
  color: #E6F1FB;
  border: 0.5px solid rgba(133,183,235,0.5);
}

.resume-btn:hover { opacity: 0.85; }

/* ── PAGE HERO (inner pages) ── */
.page-hero {
  background: linear-gradient(135deg, #0C447C 0%, #185FA5 60%, #378ADD 100%);
  padding: 32px 48px;
}

.page-hero h1 {
  color: #fff;
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 4px;
}

.page-hero p {
  color: #B5D4F4;
  font-size: 13px;
}

/* ── BODY / GRID ── */
.body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 24px 48px;
  max-width: 1100px;
  margin: 0 auto;
}

.body.single-col {
  grid-template-columns: 1fr;
  max-width: 780px;
}

/* ── CARDS ── */
.card {
  background: #fff;
  border-radius: 12px;
  border: 0.5px solid #B5D4F4;
  padding: 20px;
}

.card-full { grid-column: 1 / -1; }

.card h2 {
  font-size: 11px;
  font-weight: 600;
  color: #185FA5;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

/* ── ABOUT TEXT ── */
.about-text {
  font-size: 13px;
  color: #4a5568;
  line-height: 1.8;
}

.about-text p + p { margin-top: 10px; }

.about-text a { color: #185FA5; }

.about-text ul {
  padding-left: 18px;
  margin-top: 6px;
}

.about-text ul li { margin-bottom: 5px; }

/* ── SKILL TAGS ── */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.skill-tag {
  font-size: 11px;
  background: #E6F1FB;
  color: #185FA5;
  padding: 4px 10px;
  border-radius: 99px;
  border: 0.5px solid #B5D4F4;
}

/* ── PUBLICATIONS ── */
.pub-item {
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 0.5px solid #E6F1FB;
}

.pub-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.pub-number {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  color: #185FA5;
  background: #E6F1FB;
  padding: 2px 8px;
  border-radius: 99px;
  margin-bottom: 5px;
}

.pub-title {
  font-size: 13px;
  font-weight: 500;
  color: #1a2433;
  line-height: 1.5;
  margin-bottom: 3px;
}

.pub-authors {
  font-size: 12px;
  color: #718096;
  margin-bottom: 3px;
}

.pub-venue {
  font-size: 12px;
  color: #4a5568;
  font-style: italic;
}

.pub-venue a {
  color: #185FA5;
  text-decoration: none;
}

.pub-venue a:hover { text-decoration: underline; }

/* ── CONTACT ── */
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: #4a5568;
  text-decoration: none;
  transition: color 0.15s;
}

.contact-link:hover { color: #185FA5; }

.contact-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #378ADD;
  flex-shrink: 0;
}

/* ── TIMELINE (CV) ── */
.timeline-item {
  position: relative;
  padding-left: 18px;
  margin-bottom: 22px;
  border-left: 2px solid #E6F1FB;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -5px;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #378ADD;
}

.timeline-title {
  font-size: 13px;
  font-weight: 600;
  color: #1a2433;
  margin-bottom: 1px;
}

.timeline-subtitle {
  font-size: 12px;
  color: #185FA5;
  font-weight: 500;
  margin-bottom: 3px;
}

.timeline-date {
  font-size: 11px;
  color: #85B7EB;
  font-weight: 500;
}

.timeline-desc {
  font-size: 12px;
  color: #4a5568;
  line-height: 1.7;
  margin-top: 6px;
}

.timeline-desc a { color: #185FA5; }

.timeline-desc ul {
  padding-left: 16px;
  margin-top: 4px;
}

.timeline-desc li { margin-bottom: 3px; }

/* ── AWARD ITEMS ── */
.award-item {
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 0.5px solid #E6F1FB;
}

.award-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.award-title {
  font-size: 13px;
  font-weight: 500;
  color: #1a2433;
  margin-bottom: 3px;
}

.award-title a {
  color: #185FA5;
  text-decoration: none;
}

.award-title a:hover { text-decoration: underline; }

.award-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.award-year {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  color: #378ADD;
  background: #E6F1FB;
  padding: 2px 8px;
  border-radius: 99px;
}

.award-inst {
  font-size: 11px;
  color: #85B7EB;
}

.award-desc {
  font-size: 12px;
  color: #4a5568;
  line-height: 1.65;
}

.award-desc a {
  color: #185FA5;
  text-decoration: none;
}

.award-desc a:hover { text-decoration: underline; }

/* ── TEACHING ITEMS ── */
.course-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 0.5px solid #E6F1FB;
}

.course-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.course-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #E6F1FB;
  border: 0.5px solid #B5D4F4;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 15px;
}

.course-title {
  font-size: 13px;
  font-weight: 500;
  color: #1a2433;
}

.course-title a {
  color: #185FA5;
  text-decoration: none;
}

.course-title a:hover { text-decoration: underline; }

.course-desc {
  font-size: 12px;
  color: #4a5568;
  margin-top: 2px;
  line-height: 1.55;
}

.course-tag {
  display: inline-block;
  margin-top: 5px;
  font-size: 10px;
  background: #E6F1FB;
  color: #185FA5;
  padding: 2px 8px;
  border-radius: 99px;
}

/* ── SECTION DIVIDER inside card ── */
.section-divider {
  border: none;
  border-top: 0.5px solid #E6F1FB;
  margin: 16px 0;
}

/* ── TUTORIAL ITEMS ── */
.tut-item {
  padding: 14px 0;
  border-bottom: 0.5px solid #E6F1FB;
}

.tut-item:last-child { border-bottom: none; padding-bottom: 0; }

.tut-title {
  font-size: 13px;
  font-weight: 600;
  color: #1a2433;
  margin-bottom: 3px;
}

.tut-topic {
  font-size: 12px;
  color: #4a5568;
  line-height: 1.6;
  margin-bottom: 7px;
}

.tut-links {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}

.tut-link {
  font-size: 11px;
  color: #185FA5;
  text-decoration: none;
  background: #E6F1FB;
  padding: 3px 10px;
  border-radius: 99px;
  border: 0.5px solid #B5D4F4;
  transition: background 0.15s;
}

.tut-link:hover { background: #B5D4F4; }

.tut-links-label {
  font-size: 11px;
  color: #85B7EB;
  font-weight: 500;
}

.tut-note {
  font-size: 11px;
  color: #718096;
  margin-top: 6px;
  font-style: italic;
  line-height: 1.6;
}

/* Warning card variant */
.card-warn {
  background: #FFFBEB;
  border-color: #FDE68A;
}

.card-warn h2 { color: #92400E; }

/* ── FOOTER ── */
.footer {
  background: #042C53;
  padding: 14px 48px;
  text-align: center;
  margin-top: 40px;
}

.footer span { color: #378ADD; font-size: 11px; }

/* ── UTILITY ── */
.read-more {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  color: #185FA5;
  text-decoration: none;
}

.read-more:hover { text-decoration: underline; }

/* ── RESPONSIVE ── */
@media (max-width: 720px) {
  .nav { padding: 12px 20px; }
  .nav-links { gap: 16px; }
  .hero { flex-direction: column; padding: 32px 20px; gap: 20px; }
  .hero-actions { flex-direction: row; margin-left: 0; }
  .page-hero { padding: 24px 20px; }
  .body { grid-template-columns: 1fr; padding: 16px 20px; }
  .card-full { grid-column: 1; }
  .footer { padding: 12px 20px; margin-top: 24px; }
}