:root{
  --bg:#f0f5fa;
  --text:#1a2b4a;
  --muted:#5a6b7d;
  --line:#d8e2ec;
  --card:#ffffff;
  --accent:#FFCB05;
  --accent2:#e6b800;
  --hero-bg:#f0f5fa;
  --shadow: 0 10px 30px rgba(2, 8, 23, 0.08);
  --radius: 18px;
  --max: 1400px;
}

*{ box-sizing:border-box; }
html{ margin:0; padding:0; overflow-x: hidden; overflow-y: scroll; }
body{ margin:0; padding:0; }
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

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

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Top bar */
.topbar{
  position: sticky;
  top: 0;
  background: rgba(240, 245, 250, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: none;
  z-index: 10;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 18px;
  padding: 10px 0;
}

.brand{
  font-weight: 700;
  letter-spacing: 0.2px;
  display:flex;
  align-items:center;
  gap:10px;
}
.brand-logo{
  height: 200px;
  width: auto;
  max-width: 420px;
  flex-shrink: 0;
  object-fit: contain;
}

.navlinks{
  display:flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items:center;
  justify-content:flex-end;
}
.navlinks a{
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
}
.navlinks a:hover{
  background: rgba(2,8,23,0.04);
  text-decoration:none;
  color: var(--text);
}
.navlinks a.active{
  background: rgba(232, 107, 92, 0.10);
  color: var(--accent);
}

/* Dropdown menu */
.nav-dropdown{
  position: relative;
}
.nav-dropdown-btn{
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-dropdown-btn:hover{
  background: rgba(2,8,23,0.04);
  color: var(--text);
}
.dropdown-arrow{
  font-size: 10px;
}
.nav-dropdown-content{
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  min-width: 140px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  border: 1px solid var(--line);
  padding: 6px 0;
  z-index: 100;
}
.nav-dropdown:hover .nav-dropdown-content{
  display: block;
}
.nav-dropdown-content a{
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text);
  border-radius: 0;
}
.nav-dropdown-content a:hover{
  background: rgba(2,8,23,0.04);
  text-decoration: none;
}

/* Nav icon (Instagram) */
.nav-icon{
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  color: var(--muted);
  border-radius: 8px;
}
.nav-icon:hover{
  background: rgba(2,8,23,0.04);
  color: var(--text);
  text-decoration: none;
}

/* Hero */
.hero{
  padding: 0 0 10px;
  min-height: 380px;
  position: relative;
  background-color: #f0f5fa;
}

.hero .container{
  position: relative;
  min-height: 360px;
  overflow: hidden;
}

/* Background image container - now inside container */
.hero .container::before{
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 80%;
  background-image: url('../bg.png');
  background-size: cover;
  background-position: center;
  z-index: 0;
  border-radius: 12px;
}

/* Gradient overlay that fades the image on the left - smoother transition */
.hero .container::after{
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    to right,
    #f0f5fa 0%,
    #f0f5fa 15%,
    rgba(240, 245, 250, 0.95) 25%,
    rgba(240, 245, 250, 0.8) 35%,
    rgba(240, 245, 250, 0.5) 45%,
    rgba(240, 245, 250, 0.2) 55%,
    rgba(240, 245, 250, 0) 65%
  );
  z-index: 1;
  border-radius: 12px;
}
.hero-content{
  max-width: 600px;
  position: relative;
  z-index: 2;
}

.hero-title{
  font-size: 52px;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--text);
}
.hero-title span{
  display:block;
}
.hero-title em{
  font-style: italic;
  color: var(--accent);
}
@media (max-width: 520px){
  .hero-title{ font-size: 36px; }
}

.hero-text{
  margin-top: 24px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.6;
  max-width: 52ch;
}

.cta-row{
  margin-top: 28px;
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 16px 28px;
  border-radius: 6px;
  border: none;
  background: #fff;
  box-shadow: 0 4px 12px rgba(2,8,23,0.08);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.btn:hover{
  text-decoration:none;
  transform: translateY(-2px);
  transition: 0.15s ease;
  box-shadow: 0 6px 16px rgba(2,8,23,0.12);
}
.btn-primary{
  background: var(--accent);
  color: #00274C;
}
.btn-primary:hover{
  background: var(--accent2);
  color: #00274C;
}

.card{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card h3{
  margin: 0 0 8px;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.card p{ margin: 0; color: var(--text); }

/* Sections */
.section{
  padding: 22px 0;
}
.section-title{
  font-size: 18px;
  margin: 0 0 10px;
}
.notice{
  display:grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.notice-item{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 14px;
}
.notice-item .meta{
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}
.notice-item a{
  color: var(--accent2);
  font-weight: 600;
}
.notice-item a:hover{ text-decoration: underline; }

/* Publication list */
.pub-list{
  list-style: none;
  padding: 0;
  margin: 0;
}
.pub-list li{
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}
.pub-list li:last-child{
  border-bottom: none;
}
.pub-list li em{
  font-style: italic;
}
.pub-list li a{
  color: var(--accent2);
  word-break: break-all;
}
.pub-list li a:hover{
  text-decoration: underline;
}

/* Research areas list */
.research-areas{
  list-style: none;
  padding: 0;
  margin: 0;
}
.research-areas li{
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.research-areas li:last-child{
  border-bottom: none;
}
.research-areas a{
  color: var(--accent2);
  font-size: 16px;
  font-weight: 500;
  display: block;
}
.research-areas a:hover{
  text-decoration: underline;
}

/* Project details */
.project-details{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px 24px;
  padding: 12px 16px;
  background: rgba(0,0,0,0.02);
  border-radius: 8px;
  margin-bottom: 8px;
}
.project-details p{
  margin: 0;
  font-size: 14px;
}

/* Footer */
.footer{
  margin-top: 40px;
  background: #5a7a9b;
  padding: 5px 0 50px;
  color: #d0e0f0;
  font-size: 14px;
}

.footer-grid{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  align-items: start;
}

.footer-right{
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 15px;
}

.footer-left{
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-logos{
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.footer-logos a{
  display: block;
}

.footer-logo-img{
  width: auto;
  /* filter: brightness(0) invert(1); */
  opacity: 0.9;
  transition: opacity 0.2s;
}

.footer-logo-umich{
  height: 125px;
}

.footer-logo-kines{
  height: 45px;
}

.footer-logo-img:hover{
  opacity: 1;
}

.footer-contact{
  margin-left: auto;
  text-align: right;
  padding-top: 20px;
}

.footer-section{
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-section p{
  margin: 0;
  color: #a0b4c8;
  font-size: 14px;
  line-height: 1.5;
}

.footer-title{
  color: #6ab0e3;
  font-size: 18px;
  font-weight: 600;
  font-style: italic;
  margin: 0 0 12px;
}

.footer-section a{
  color: #6ab0e3;
  text-decoration: underline;
  font-size: 14px;
}
.footer-section a:hover{
  color: #fff;
}

.footer-social{
  display: flex;
  align-items: flex-start;
}

.social-icon{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: #d0e0f0;
  border-radius: 50%;
  color: #3a5a7b;
}
.social-icon:hover{
  background: #fff;
  text-decoration: none;
}

.small{
  font-size: 12px;
  color: var(--muted);
}

@media (max-width: 800px){
  .footer-grid{
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .footer-left{
    grid-column: 1 / -1;
    align-items: center;
    text-align: center;
  }
  .footer-logo img{
    height: 40px;
  }
  .footer-social{
    grid-column: 1 / -1;
    justify-content: center;
  }
}

.footer-copyright{
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.15);
  text-align: center;
  font-size: 13px;
  color: #a0b4c8;
}

@media (max-width: 500px){
  .footer-grid{
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-left{
    align-items: center;
  }
  .footer-section{
    align-items: center;
  }
}