:root {
  --theme-primary: #0b4070;
  --theme-secondary: #f16673;
  --theme-secondary-light: #f9b5b7;
  --theme-surface: rgba(255, 255, 255, 0.9);
  --theme-surface-soft: rgba(255, 255, 255, 0.8);
  --theme-surface-strong: rgba(255, 255, 255, 0.96);
  --theme-text-strong: #091d34;
  --theme-text-muted: rgba(9, 29, 52, 0.7);
  --theme-border: rgba(9, 29, 52, 0.12);
  --theme-shadow: 0 20px 45px rgba(8, 31, 54, 0.18);
  --theme-gradient: linear-gradient(180deg, rgba(11, 64, 112, 0.08) 0%, rgba(241, 102, 115, 0.08) 100%);
  --theme-gradient-alt: linear-gradient(180deg, rgba(241, 102, 115, 0.08) 0%, rgba(11, 64, 112, 0.05) 100%);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Noto Sans', sans-serif;
  background: linear-gradient(180deg, #f3f6fb 0%, #fef9f8 100%);
  color: var(--theme-text-strong);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(6, 20, 36, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 25px rgba(5, 22, 41, 0.2);
}

.navbar-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem clamp(1.5rem, 6vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.88);
}

.navbar-brand {
  font-family: 'Google Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand i {
  color: var(--theme-secondary-light);
}

.navbar-links {
  display: flex;
  gap: clamp(1rem, 3vw, 1.75rem);
}

.navbar-links a {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  position: relative;
  padding-bottom: 0.25rem;
}

.navbar-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #ffe1a2, #f9b5b7);
  transition: width 0.3s ease;
}

.navbar-links a:hover::after,
.navbar-links a:focus::after {
  width: 100%;
}

.hero-landing {
  position: relative;
  color: #fff;
  overflow: hidden;
  background: radial-gradient(circle at 15% 15%, rgba(255, 216, 171, 0.45), transparent 45%),
              radial-gradient(circle at 85% 10%, rgba(255, 255, 255, 0.22), transparent 55%),
              linear-gradient(135deg, #0b4070 0%, #2b7995 40%, #f16673 100%);
}

.hero-landing::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 45%);
  pointer-events: none;
}

.hero-landing .hero-body {
  padding: clamp(4rem, 10vw, 6.5rem) clamp(1.5rem, 6vw, 6rem) clamp(3rem, 8vw, 5rem);
}

.landing-shell {
  max-width: 1200px;
  margin: 0 auto;
}

.landing-card {
  position: relative;
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  align-items: stretch;
}

.hero-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-left {
  padding-left: clamp(0rem, 4vw, 2.5rem);
}

.landing-kicker {
  font-family: 'Castoro', serif;
  font-size: clamp(1.8rem, 2.5vw, 2.25rem);
  color: #f7c486;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.landing-title {
  font-family: 'Google Sans', sans-serif;
  font-size: clamp(2.2rem, 3vw + 1rem, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  margin: 0;
}

.landing-summary {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
}

.landing-bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.2rem;
}

.landing-bullets li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.landing-bullet-icon {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.13);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: #ffe1a2;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
}

.landing-bullets li div {
  flex: 1;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.88);
}

.landing-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 0.5rem;
}

.landing-button {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.landing-button:hover,
.landing-button:focus {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.28);
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.22);
}

.landing-button-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.landing-image-frame {
  position: relative;
  aspect-ratio: 1;
  border-radius: 28px;
  padding: 1.1rem;
  width: min(100%, 480px);
  margin: auto;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.08));
  box-shadow: 0 28px 60px rgba(11, 22, 42, 0.32);
  overflow: hidden;
}

.landing-image-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.28);
  pointer-events: none;
}

.photo-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 40px rgba(11, 22, 42, 0.25);
}

.photo-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.section {
  padding: clamp(3.5rem, 8vw, 5rem) clamp(1.75rem, 6vw, 5rem);
}

.themed-section {
  background: var(--theme-gradient);
}

.themed-alt {
  background: var(--theme-gradient-alt);
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-card {
  background: var(--theme-surface);
  border-radius: 26px;
  padding: clamp(2rem, 4vw, 3rem);
  box-shadow: var(--theme-shadow);
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
}

.section-title {
  font-family: 'Google Sans', sans-serif;
  font-size: clamp(2rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--theme-primary);
}

.section-title::after {
  content: "";
  width: 80px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, #f7c486, #f16673);
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.85rem;
  color: var(--theme-text-muted);
  margin-bottom: 1rem;
  font-weight: 600;
}

.section-body {
  color: var(--theme-text-muted);
  font-size: 1.05rem;
  margin-bottom: 1.75rem;
}

.highlight-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.highlight-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.75));
  border-radius: 20px;
  padding: 1.5rem;
  border: 1px solid rgba(9, 29, 52, 0.08);
  box-shadow: 0 12px 28px rgba(9, 29, 52, 0.12);
}

.highlight-card h3 {
  font-family: 'Google Sans', sans-serif;
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
  color: var(--theme-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.timeline {
  display: grid;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, rgba(11, 64, 112, 0.2), rgba(241, 102, 115, 0.25));
}

.timeline-item {
  padding-left: 2.8rem;
  position: relative;
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: 6px;
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(11, 64, 112, 0.92), rgba(241, 102, 115, 0.85));
  box-shadow: 0 10px 24px rgba(11, 64, 112, 0.25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.95rem;
}

.timeline-title {
  font-family: 'Google Sans', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
  color: var(--theme-primary);
}

.timeline-meta {
  font-size: 0.95rem;
  color: var(--theme-text-muted);
  margin: 0.3rem 0 0.75rem;
}

.publication-card {
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.8));
  border-radius: 22px;
  padding: 1.75rem;
  border-left: 5px solid rgba(11, 64, 112, 0.65);
  box-shadow: 0 12px 30px rgba(11, 64, 112, 0.14);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.publication-card:hover,
.publication-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(241, 102, 115, 0.8);
  box-shadow: 0 20px 40px rgba(11, 64, 112, 0.18);
}

.publication-title {
  font-family: 'Google Sans', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--theme-primary);
}

.publication-meta {
  font-size: 0.95rem;
  color: var(--theme-text-muted);
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  background: rgba(11, 64, 112, 0.08);
  color: var(--theme-primary);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.chip i {
  font-size: 1rem;
}

.contact-card {
  text-align: center;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.74));
  border-radius: 24px;
  padding: clamp(2rem, 5vw, 3rem);
  box-shadow: 0 18px 38px rgba(11, 64, 112, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.contact-icon {
  width: 68px;
  height: 68px;
  border-radius: 22px;
  margin: 0 auto 1.2rem;
  background: linear-gradient(135deg, rgba(11, 64, 112, 0.92), rgba(241, 102, 115, 0.9));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.6rem;
  box-shadow: 0 16px 32px rgba(11, 64, 112, 0.22);
}

.contact-card a {
  color: var(--theme-primary);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color 0.25s ease;
  word-break: break-word;
}

.contact-card a:hover,
.contact-card a:focus {
  color: var(--theme-secondary);
}

footer {
  background: rgba(5, 22, 41, 0.92);
  color: rgba(255, 255, 255, 0.8);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.footer-shell {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
  justify-items: center;
}

.footer-links {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  font-size: 1.3rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.25s ease, transform 0.25s ease;
}

.footer-links a:hover,
.footer-links a:focus {
  color: #f9b5b7;
  transform: translateY(-2px);
}

@media (max-width: 980px) {
  .landing-card {
    grid-template-columns: 1fr;
  }

  .hero-left {
    padding-left: 0;
  }

  .navbar-links {
    display: none;
  }
}

@media (max-width: 540px) {
  .section-card {
    padding: 1.75rem;
  }

  .landing-bullets li {
    flex-direction: column;
  }

  .landing-button {
    width: 100%;
    justify-content: center;
  }
}