/* OHPEN Lab — site stylesheet */
:root {
  --navy: #0f2a43;
  --navy-2: #163a5c;
  --teal: #0e8f8a;
  --teal-dark: #0a6d69;
  --gold: #d9a441;
  --ink: #1d2733;
  --muted: #5b6b7c;
  --line: #e3e9ef;
  --bg: #ffffff;
  --bg-soft: #f4f7fa;
  --radius: 14px;
  --shadow: 0 10px 28px rgba(15, 42, 67, 0.10);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}

img { max-width: 100%; }

a { color: var(--teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15, 42, 67, 0.97);
  backdrop-filter: blur(6px);
  border-bottom: 3px solid var(--teal);
}
.nav-inner {
  max-width: 1160px; margin: 0 auto; padding: 10px 24px 8px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.brand { display: flex; align-items: center; justify-content: center; gap: 10px; }
.brand a { color: #fff; font-weight: 700; font-size: 1.08rem; letter-spacing: 1.2px; text-decoration: none; white-space: nowrap; }
.brand .dot { color: var(--gold); }
.nav-links {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 4px; list-style: none;
  max-width: 100%;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  display: block; padding: 9px 11px; color: #d7e2ec; font-size: 0.88rem;
  font-weight: 500; border-radius: 8px; text-decoration: none; white-space: nowrap;
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.10); }
.nav-links a.active { color: #fff; background: var(--teal); }

/* ---------- Hero / page headers ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 55%, var(--teal-dark) 100%);
  color: #fff; padding: 72px 0 64px;
}
.hero h1 { font-size: 2.3rem; line-height: 1.2; max-width: 850px; }
.hero h1 span { color: var(--gold); }
.hero .tagline { margin-top: 16px; font-size: 1.12rem; color: #cfe0ea; max-width: 780px; }
.hero .hero-cta { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }

.page-head {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 60%, var(--teal-dark) 100%);
  color: #fff; padding: 48px 0 40px;
}
.page-head h1 { font-size: 2rem; }
.page-head p { margin-top: 10px; color: #cfe0ea; max-width: 820px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem; text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-outline { border: 2px solid rgba(255,255,255,0.65); color: #fff; }
.btn-teal { background: var(--teal); color: #fff; }

/* ---------- Sections ---------- */
.section { padding: 56px 0; }
.section.soft { background: var(--bg-soft); }
.section h2 {
  font-size: 1.6rem; color: var(--navy); margin-bottom: 8px;
}
.section .lede { color: var(--muted); max-width: 800px; margin-bottom: 28px; }
.kicker {
  text-transform: uppercase; letter-spacing: 1.6px; font-size: 0.78rem;
  font-weight: 700; color: var(--teal); margin-bottom: 6px;
}

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 20px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: 0 2px 8px rgba(15,42,67,0.05);
}
.card h3 { color: var(--navy); font-size: 1.05rem; margin-bottom: 8px; line-height: 1.4; }
.card p { color: var(--muted); font-size: 0.93rem; }
.card .meta { font-size: 0.83rem; color: var(--teal-dark); font-weight: 600; margin-bottom: 8px; }

/* ---------- Notice banner ---------- */
.banner {
  background: linear-gradient(120deg, #fdf6e8, #f6ead0);
  border: 1px solid #ecd9ae; border-left: 6px solid var(--gold);
  border-radius: var(--radius); padding: 20px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.banner strong { color: var(--navy); }
.banner p { color: #5f5232; font-size: 0.95rem; }

/* ---------- People ---------- */
.person-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 22px; }
.person { text-align: center; }
.person .photo, .person .avatar {
  width: 132px; height: 132px; border-radius: 50%; margin: 0 auto 12px;
  border: 4px solid #fff; box-shadow: 0 4px 14px rgba(15,42,67,0.18);
}
.person .photo { object-fit: cover; display: block; }
.person .avatar {
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--navy-2));
}
.person .avatar.alt { background: linear-gradient(135deg, #7b6ccb, var(--navy-2)); }
.person h3 { font-size: 1rem; color: var(--navy); }
.person .role { font-size: 0.85rem; color: var(--muted); margin-top: 2px; }
.person .note { font-size: 0.8rem; color: var(--teal-dark); margin-top: 3px; }

.director-card {
  display: flex; gap: 28px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: 0 2px 10px rgba(15,42,67,0.06);
  flex-wrap: wrap;
}
.director-card img {
  width: 180px; height: 180px; object-fit: cover; border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.director-card .bio { flex: 1; min-width: 260px; }
.director-card h3 { color: var(--navy); font-size: 1.3rem; }
.director-card .title { color: var(--teal-dark); font-weight: 600; margin: 4px 0 12px; font-size: 0.95rem; }
.director-card p { color: var(--muted); font-size: 0.95rem; margin-bottom: 10px; }

/* ---------- Lists ---------- */
.alumni-list { list-style: none; }
.alumni-list li {
  padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 0.95rem;
}
.alumni-list li strong { color: var(--navy); }
.alumni-list li .yrs { color: var(--teal-dark); font-weight: 600; font-size: 0.85rem; }
.alumni-list li em { color: var(--muted); font-style: normal; font-size: 0.88rem; display: block; }

.news-list { list-style: none; }
.news-list li {
  padding: 16px 0; border-bottom: 1px solid var(--line);
  display: flex; gap: 18px; align-items: baseline;
}
.news-list .yr {
  flex: 0 0 56px; font-weight: 700; color: var(--teal); font-size: 0.95rem;
}
.news-list .what { flex: 1; }
.news-list .what a { color: var(--navy); font-weight: 600; }
.news-list .what a:hover { color: var(--teal-dark); }
.news-list .src { color: var(--muted); font-size: 0.85rem; display: block; margin-top: 2px; }

.pub-list { list-style: none; }
.pub-list li { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 0.94rem; color: var(--muted); }
.pub-list li strong { color: var(--navy); font-weight: 600; }
.pub-list li .venue { color: var(--teal-dark); font-weight: 600; }

/* ---------- Project cards ---------- */
.project {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; margin-bottom: 22px; box-shadow: 0 2px 8px rgba(15,42,67,0.05);
}
.project .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.tag {
  display: inline-block; padding: 3px 12px; border-radius: 999px;
  font-size: 0.76rem; font-weight: 700; letter-spacing: 0.3px;
}
.tag.nih { background: #e3f2f1; color: var(--teal-dark); }
.tag.industry { background: #fdf1dc; color: #8a6620; }
.tag.role { background: #e9edf5; color: var(--navy-2); }
.project h3 { color: var(--navy); font-size: 1.12rem; margin-bottom: 6px; }
.project .grant { color: var(--teal-dark); font-weight: 600; font-size: 0.88rem; margin-bottom: 10px; }
.project p { color: var(--muted); font-size: 0.94rem; }

/* ---------- Highlight strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { text-align: center; padding: 20px 10px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.stat .num { font-size: 1.7rem; font-weight: 800; color: var(--navy); }
.stat .lbl { font-size: 0.85rem; color: var(--muted); margin-top: 2px; }

/* ---------- App page ---------- */
.app-hero { display: flex; gap: 32px; align-items: center; flex-wrap: wrap; }
.app-hero img.icon {
  width: 150px; height: 150px; border-radius: 32px; box-shadow: var(--shadow);
}
.app-hero .intro { flex: 1; min-width: 280px; }
.badges { display: flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }

/* ---------- Cinematic hero (home) ---------- */
.hero-cinema {
  position: relative; min-height: 90vh; display: flex; align-items: center;
  overflow: hidden; color: #fff;
  background:
    radial-gradient(1200px 600px at 80% 10%, rgba(14,143,138,0.28), transparent 60%),
    radial-gradient(900px 500px at 10% 90%, rgba(217,164,65,0.14), transparent 60%),
    linear-gradient(160deg, #081627 0%, #0f2a43 55%, #123a52 100%);
}
#net-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-cinema::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, transparent 60%, rgba(8,22,39,0.85) 100%);
}
.hero-content {
  position: relative; z-index: 2; padding-top: 90px; padding-bottom: 110px;
  text-align: center;
}
.hero-kicker {
  text-transform: uppercase; letter-spacing: 4px; font-size: 0.8rem;
  font-weight: 700; color: var(--gold); margin-bottom: 22px;
}
.hero-cinema h1 {
  font-size: clamp(1.85rem, 4.4vw, 3.3rem); line-height: 1.16; font-weight: 800;
  max-width: 950px; margin: 0 auto; letter-spacing: -0.4px;
}
.hero-cinema h1 .cap {
  color: #6fd8d2;
  text-shadow: 0 0 26px rgba(111, 216, 210, 0.55);
}
.hero-acronym {
  margin-top: 20px; font-size: clamp(0.78rem, 1.5vw, 0.95rem);
  text-transform: uppercase; letter-spacing: 7px; font-weight: 700; color: var(--gold);
}
.hero-rule {
  width: 78px; height: 3px; margin: 22px auto 0; border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.hero-sub {
  margin: 22px auto 0; font-size: clamp(1rem, 1.8vw, 1.15rem); color: #c6d8e4;
  max-width: 660px; line-height: 1.7;
}
.hero-cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.fade-up { opacity: 0; transform: translateY(24px); animation: fadeUp 0.9s ease forwards; }
.d1 { animation-delay: 0.15s; } .d2 { animation-delay: 0.45s; }
.d3 { animation-delay: 0.75s; } .d4 { animation-delay: 1.05s; }
@keyframes fadeUp { to { opacity: 1; transform: none; } }
.scroll-hint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  z-index: 2; color: #9fd6d3; font-size: 1.4rem; animation: bob 2s ease-in-out infinite;
  text-decoration: none;
}
.scroll-hint:hover { text-decoration: none; color: #fff; }
@keyframes bob { 0%,100% { transform: translate(-50%,0); } 50% { transform: translate(-50%,10px); } }
@media (prefers-reduced-motion: reduce) {
  .fade-up { animation: none; opacity: 1; transform: none; }
  .scroll-hint { animation: none; }
}

/* ---------- Pillar art cards ---------- */
.pillar {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 2px 10px rgba(15,42,67,0.06);
  display: flex; flex-direction: column;
}
.pillar img { width: 100%; height: 210px; object-fit: cover; display: block; }
.pillar .pillar-body { padding: 22px 24px 26px; }
.pillar h3 { color: var(--navy); font-size: 1.12rem; margin-bottom: 8px; line-height: 1.4; }
.pillar p { color: var(--muted); font-size: 0.93rem; }

/* ---------- Project chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-block; padding: 9px 18px; border-radius: 999px;
  background: #fff; border: 1.5px solid var(--line); color: var(--navy);
  font-weight: 600; font-size: 0.86rem; text-decoration: none;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.chip:hover { text-decoration: none; border-color: var(--teal); box-shadow: 0 4px 14px rgba(14,143,138,0.18); transform: translateY(-1px); }
.chip .src { color: var(--teal-dark); font-weight: 700; margin-right: 6px; }

/* ---------- Award band ---------- */
.award-band {
  position: relative; overflow: hidden; color: #fff; padding: 70px 0;
  background:
    radial-gradient(700px 400px at 85% 20%, rgba(217,164,65,0.20), transparent 60%),
    linear-gradient(140deg, #0b1f33 0%, #14395c 70%, #17546b 100%);
}
.award-flex { display: flex; align-items: center; gap: 44px; flex-wrap: wrap; }
.award-medal { flex: 0 0 190px; }
.award-medal svg { width: 190px; height: auto; filter: drop-shadow(0 10px 24px rgba(0,0,0,0.35)); }
.award-copy { flex: 1; min-width: 280px; }
.award-copy .k { text-transform: uppercase; letter-spacing: 3px; font-size: 0.76rem; font-weight: 700; color: #9fd6d3; }
.award-copy h2 { color: var(--gold); font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.25; margin: 10px 0 12px; }
.award-copy p { color: #c6d8e4; max-width: 620px; }
.honor-pills { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.honor-pill {
  padding: 8px 16px; border-radius: 999px; font-size: 0.82rem; font-weight: 600;
  background: rgba(255,255,255,0.10); border: 1px solid rgba(255,255,255,0.22); color: #eaf2f7;
}

/* ---------- Workflow figure ---------- */
.workflow-fig { margin-top: 26px; }
.workflow-fig img { width: 100%; height: auto; border-radius: var(--radius); box-shadow: 0 4px 18px rgba(15,42,67,0.10); }

/* ---------- Footer ---------- */
footer {
  background: var(--navy); color: #b9c9d6; margin-top: 40px;
  padding: 44px 0 30px; font-size: 0.92rem;
}
footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
@media (max-width: 720px) { footer .cols { grid-template-columns: 1fr; } }
footer h4 { color: #fff; margin-bottom: 10px; font-size: 1rem; }
footer a { color: #9fd6d3; }
footer .fineprint {
  margin-top: 30px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.8rem; color: #7f93a5;
}