:root {
  --ink: #092b2f;
  --ink-2: #0f3f45;
  --deep: #061d21;
  --teal: #0d7b82;
  --aqua: #74d6d3;
  --mint: #e8f6f3;
  --ivory: #fbf8f1;
  --paper: #ffffff;
  --gold: #c7a557;
  --line: rgba(9, 43, 47, 0.13);
  --muted: #607377;
  --shadow: 0 24px 70px rgba(6, 29, 33, 0.12);
  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "Inter", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { background: var(--ivory); color: var(--ink); font-family: var(--font-body); font-size: 16px; line-height: 1.7; }
body.nav-locked { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

h1, h2, h3 { color: var(--ink); font-family: var(--font-display); letter-spacing: 0; line-height: 1.08; }
h1 { max-width: 920px; color: var(--paper); font-size: clamp(44px, 6.6vw, 86px); }
h2 { font-size: clamp(34px, 4vw, 56px); }
h3 { font-size: 23px; }
p { color: var(--muted); margin-bottom: 1rem; }
ul { padding-left: 1.1rem; }
li { margin-bottom: 0.65rem; color: var(--muted); }

.container { width: min(1220px, calc(100% - 48px)); margin: 0 auto; }
.section-white, .section-soft, .section-ink { padding: 108px 0; }
.section-white { background: var(--paper); }
.section-soft { background: linear-gradient(180deg, var(--mint), #f7f2e8); }
.section-ink { background: radial-gradient(circle at 18% 20%, rgba(116, 214, 211, 0.18), transparent 34%), linear-gradient(135deg, var(--deep), var(--ink-2)); color: var(--paper); }
.section-ink h2, .section-ink h3 { color: var(--paper); }
.section-ink p, .section-ink li { color: rgba(255, 255, 255, 0.72); }

.eyebrow-label { display: block; margin-bottom: 16px; color: var(--aqua); font-size: 12px; font-weight: 900; letter-spacing: 0.16em; text-transform: uppercase; }
.eyebrow-label.gold { color: var(--gold); }
.section-head { max-width: 840px; margin-bottom: 46px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { font-size: 18px; }
.fade-in { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

#navbar { position: fixed; inset: 0 0 auto; z-index: 1000; padding: 18px 30px; transition: background 0.25s ease, box-shadow 0.25s ease, padding 0.25s ease; }
#navbar.scrolled, #navbar.menu-open { background: rgba(6, 29, 33, 0.94); box-shadow: 0 18px 46px rgba(0,0,0,0.24); backdrop-filter: blur(18px); }
#navbar.scrolled { padding: 12px 30px; }
.nav-container { width: min(1240px, 100%); margin: 0 auto; display: flex; align-items: center; gap: 26px; }
.nav-logo { flex-shrink: 0; color: var(--paper); font-family: var(--font-display); font-size: 23px; font-weight: 700; }
.nav-logo span { color: var(--gold); }
.nav-links { display: flex; justify-content: center; align-items: center; flex: 1; gap: 18px; list-style: none; padding: 0; }
.nav-links li { margin: 0; }
.nav-links a { position: relative; color: rgba(255,255,255,0.78); font-size: 13px; font-weight: 800; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -7px; height: 2px; background: var(--gold); transform: scaleX(0); transition: transform 0.2s ease; }
.nav-links a:hover { color: var(--paper); }
.nav-links a:hover::after { transform: scaleX(1); }
.hamburger { display: none; position: relative; min-width: 48px; min-height: 48px; border: 1px solid rgba(255,255,255,0.2); border-radius: 999px; background: radial-gradient(circle at 30% 25%, rgba(116,214,211,0.28), rgba(255,255,255,0.08)); color: var(--paper); cursor: pointer; box-shadow: inset 0 1px 0 rgba(255,255,255,0.18), 0 16px 34px rgba(0,0,0,0.2); }
.hamburger-line { position: absolute; left: 14px; right: 14px; height: 2px; border-radius: 999px; background: var(--paper); transform-origin: center; transition: top 0.22s ease, transform 0.22s ease, opacity 0.16s ease, background 0.22s ease; }
.hamburger-line:nth-child(1) { top: 16px; }
.hamburger-line:nth-child(2) { top: 23px; }
.hamburger-line:nth-child(3) { top: 30px; }
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) { top: 23px; transform: rotate(45deg); }
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) { opacity: 0; transform: scaleX(0.2); }
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) { top: 23px; transform: rotate(-45deg); }

.nav-cta, .btn-primary, .btn-glass, .btn-line, .btn-submit { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; font-weight: 900; font-size: 14px; transition: transform 0.22s ease, background 0.22s ease, border 0.22s ease, color 0.22s ease, box-shadow 0.22s ease; }
.nav-cta, .btn-primary, .btn-submit { border: 0; background: linear-gradient(135deg, var(--teal), #129da2); color: var(--paper); padding: 12px 24px; box-shadow: 0 14px 30px rgba(13, 123, 130, 0.28); }
.nav-cta:hover, .btn-primary:hover, .btn-submit:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(13, 123, 130, 0.34); }
.btn-glass { color: var(--paper); border: 1px solid rgba(255,255,255,0.35); background: rgba(255,255,255,0.1); padding: 11px 22px; backdrop-filter: blur(10px); }
.btn-glass:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }
.btn-line { color: var(--gold); border: 1px solid rgba(199,165,87,0.75); padding: 11px 22px; }
.btn-line:hover { background: var(--gold); color: var(--deep); transform: translateY(-2px); }

.hero { position: relative; min-height: 100svh; display: flex; align-items: center; overflow: hidden; isolation: isolate; background: var(--deep); }
.hero-media { position: absolute; inset: 0; background: url("/images/hero-clinical-research.png") center / cover no-repeat; transform: scale(1.04); opacity: 0.72; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,29,33,0.96), rgba(6,29,33,0.82) 48%, rgba(6,29,33,0.44)), radial-gradient(circle at 74% 18%, rgba(116,214,211,0.22), transparent 34%); }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.2fr) 420px; gap: 56px; align-items: center; padding: 128px 0 74px; }
.hero-copy p { max-width: 720px; color: rgba(255,255,255,0.78); font-size: 19px; margin-top: 24px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-panel { padding: 24px; border: 1px solid rgba(255,255,255,0.18); border-radius: 8px; background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.07)); box-shadow: 0 30px 70px rgba(0,0,0,0.28); backdrop-filter: blur(18px); }
.portrait-card { display: flex; align-items: center; gap: 16px; padding-bottom: 22px; border-bottom: 1px solid rgba(255,255,255,0.14); }
.portrait-mark { width: 78px; height: 78px; display: grid; place-items: center; flex-shrink: 0; border-radius: 8px; background: linear-gradient(135deg, var(--gold), #f0d892); color: var(--deep); font-family: var(--font-display); font-size: 32px; font-weight: 700; }
.portrait-card strong { display: block; color: var(--paper); font-size: 20px; }
.portrait-card span, .trust-strip span { color: rgba(255,255,255,0.66); font-size: 13px; }
.metric-row { display: grid; gap: 14px; margin: 22px 0; }
.metric-row div { display: grid; grid-template-columns: 86px 1fr; align-items: center; gap: 12px; padding: 14px; border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; background: rgba(255,255,255,0.08); }
.metric-row strong { color: var(--aqua); font-size: 34px; line-height: 1; }
.metric-row span { color: rgba(255,255,255,0.72); font-size: 13px; line-height: 1.35; }
.trust-strip { display: flex; flex-wrap: wrap; gap: 8px; }
.trust-strip span { width: 100%; }
.trust-strip b { color: var(--paper); border: 1px solid rgba(255,255,255,0.14); border-radius: 999px; padding: 6px 10px; font-size: 12px; }

.overview-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.feature-card, .project-card, .achievement-panel, .publication-list article, .blog-feature, .hire-card, .contact-form-wrap { border: 1px solid var(--line); border-radius: 8px; background: var(--paper); box-shadow: var(--shadow); }
.feature-card { padding: 28px; }
.feature-card.large { grid-column: span 2; }
.feature-card i { color: var(--teal); font-size: 28px; margin-bottom: 18px; }
.feature-card h3 { margin-bottom: 10px; }
.feature-card p:last-child { margin-bottom: 0; }

.split-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 58px; align-items: center; }
.service-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.service-list span { display: flex; align-items: center; min-height: 58px; border: 1px solid rgba(255,255,255,0.13); border-radius: 8px; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.88); padding: 13px 15px; font-weight: 700; }

.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.project-card { position: relative; min-height: 224px; padding: 26px; overflow: hidden; transition: transform 0.25s ease, box-shadow 0.25s ease; }
.project-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 5px; background: linear-gradient(var(--teal), var(--gold)); }
.project-card:hover { transform: translateY(-6px); box-shadow: 0 30px 70px rgba(6,29,33,0.16); }
.project-card span, .publication-list span, .blog-feature span { display: block; margin-bottom: 12px; color: var(--gold); font-size: 11px; font-weight: 900; letter-spacing: 0.14em; text-transform: uppercase; }
.project-card h3 { margin-bottom: 12px; }
.project-card p { margin: 0; }

.timeline { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.timeline article { position: relative; padding: 24px 24px 24px 28px; border: 1px solid var(--line); border-radius: 8px; background: linear-gradient(180deg, #ffffff, #f8fcfb); }
.timeline article::before { content: ""; position: absolute; left: 0; top: 24px; bottom: 24px; width: 4px; background: var(--teal); border-radius: 0 999px 999px 0; }
.timeline span { display: block; margin-bottom: 8px; color: var(--gold); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: 0.08em; }
.timeline h3 { margin-bottom: 9px; font-size: 21px; }
.timeline p { margin: 0; font-size: 15px; }

.achievement-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; align-items: start; }
.achievement-panel { padding: 30px; }
.achievement-panel h3 { margin-bottom: 18px; }
.achievement-panel li strong { color: var(--ink); }

.publication-list { display: grid; gap: 18px; }
.publication-list article { padding: 26px 30px; }
.publication-list h3 { margin-bottom: 10px; }
.publication-list p { margin-bottom: 0.5rem; }
.publication-list a, .text-link { display: inline-flex; margin-top: 8px; color: var(--teal); font-weight: 900; }
.publication-list a:hover, .text-link:hover { color: var(--ink); text-decoration: underline; }

.blog-feature { display: grid; grid-template-columns: 150px 1fr; gap: 28px; padding: 34px; align-items: start; }
.blog-icon { width: 118px; height: 118px; display: grid; place-items: center; border-radius: 8px; color: var(--paper); background: linear-gradient(135deg, var(--teal), var(--ink)); font-size: 42px; }
.blog-feature h3 { margin-bottom: 14px; font-size: clamp(26px, 3vw, 40px); }

.hire-card { padding: 30px; color: var(--ink); }
.hire-card i { color: var(--teal); font-size: 38px; margin-bottom: 18px; }
.hire-card .btn-primary { margin-top: 10px; }

.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.contact-list { display: grid; gap: 12px; margin-top: 28px; }
.contact-list a, .contact-list span { display: flex; align-items: center; gap: 12px; color: var(--ink); font-weight: 700; overflow-wrap: anywhere; }
.contact-list i { width: 18px; color: var(--teal); }
.contact-form-wrap { padding: 30px; }
.contact-form-wrap form { display: grid; gap: 14px; }
.contact-form-wrap label { display: grid; gap: 7px; color: var(--ink); font-size: 13px; font-weight: 900; letter-spacing: 0.02em; }
.contact-form-wrap input, .contact-form-wrap textarea, .contact-form-wrap select { width: 100%; border: 1px solid var(--line); border-radius: 8px; background: #f8fbfa; color: var(--ink); font: inherit; padding: 13px 14px; outline: none; }
.contact-form-wrap input:focus, .contact-form-wrap textarea:focus, .contact-form-wrap select:focus { border-color: var(--teal); box-shadow: 0 0 0 4px rgba(13,123,130,0.12); }
.btn-submit { width: 100%; cursor: pointer; gap: 10px; }
.btn-submit:disabled { cursor: wait; opacity: 0.7; transform: none; }
.form-success, .form-error { margin-top: 14px; padding: 13px 15px; border-radius: 8px; font-weight: 900; text-align: center; }
.form-success { color: #086735; border: 1px solid rgba(8,103,53,0.28); background: #e8f8ee; }
.form-error { color: #9b2d1b; border: 1px solid rgba(155,45,27,0.25); background: #fff0eb; }
.hidden { display: none; }

footer { background: #061719; color: var(--paper); padding: 42px 0; }
.footer-grid { display: grid; grid-template-columns: 1fr 1.2fr auto; gap: 28px; align-items: center; }
footer h3 { color: var(--paper); font-size: 22px; margin-bottom: 4px; }
footer p { color: rgba(255,255,255,0.58); margin: 0; font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.footer-links a { color: rgba(255,255,255,0.68); font-size: 14px; font-weight: 700; }
.footer-links a:hover { color: var(--gold); }

@media (max-width: 1120px) {
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 12px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-panel { max-width: 620px; }
  .overview-grid, .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 840px) {
  .container { width: min(100% - 34px, 1220px); }
  #navbar { padding: 12px 16px; }
  #navbar::before { content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none; background: radial-gradient(circle at 82% 12%, rgba(116,214,211,0.18), transparent 36%), rgba(2,14,16,0.45); opacity: 0; transition: opacity 0.24s ease; }
  #navbar.menu-open::before { opacity: 1; }
  .nav-container { position: relative; min-height: 54px; padding: 7px 8px 7px 14px; border: 1px solid rgba(255,255,255,0.14); border-radius: 999px; background: linear-gradient(135deg, rgba(6,29,33,0.78), rgba(15,63,69,0.58)); box-shadow: 0 18px 46px rgba(0,0,0,0.24); backdrop-filter: blur(18px); }
  .nav-logo { max-width: calc(100vw - 116px); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 20px; }
  .hamburger { display: inline-flex; align-items: center; justify-content: center; margin-left: auto; flex-shrink: 0; }
  .nav-cta { display: none; }
  .nav-links {
    position: fixed;
    top: 78px;
    left: 16px;
    right: 16px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    max-height: min(72vh, 620px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 14px;
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 28px;
    background:
      radial-gradient(circle at 10% 0%, rgba(116,214,211,0.24), transparent 34%),
      linear-gradient(145deg, rgba(6,29,33,0.97), rgba(11,62,67,0.93));
    box-shadow: 0 30px 80px rgba(0,0,0,0.38), inset 0 1px 0 rgba(255,255,255,0.12);
    backdrop-filter: blur(24px) saturate(130%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-12px) scale(0.98);
    transform-origin: top right;
    transition: opacity 0.22s ease, visibility 0.22s ease, transform 0.22s ease;
  }
  .nav-links::before {
    content: "";
    position: absolute;
    top: -7px;
    right: 28px;
    width: 26px;
    height: 26px;
    border-radius: 8px 8px 2px 8px;
    background: rgba(6,29,33,0.96);
    transform: rotate(45deg);
    border-left: 1px solid rgba(255,255,255,0.12);
    border-top: 1px solid rgba(255,255,255,0.12);
  }
  .nav-links.open { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0) scale(1); }
  .nav-links li { position: relative; z-index: 1; }
  .nav-links a { display: flex; align-items: center; min-height: 50px; padding: 12px 16px; border: 1px solid rgba(255,255,255,0.09); border-radius: 18px; background: rgba(255,255,255,0.07); color: rgba(255,255,255,0.9); font-size: 15px; }
  .nav-links a:hover, .nav-links a:focus-visible { background: rgba(116,214,211,0.16); color: var(--paper); outline: none; border-color: rgba(116,214,211,0.35); }
  .nav-links a::after { display: none; }
  .section-white, .section-soft, .section-ink { padding: 80px 0; }
  .hero-grid { padding: 116px 0 60px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions > a { width: 100% !important; }
  .overview-grid, .project-grid, .timeline, .achievement-layout, .split-layout, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .feature-card.large { grid-column: auto; }
  .service-list { grid-template-columns: 1fr; }
  .blog-feature { grid-template-columns: 1fr; }
  .footer-grid, .footer-links { text-align: center; justify-content: center; }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  h1 { font-size: clamp(40px, 13vw, 58px); }
  .hero-copy p, .section-head p { font-size: 16px; }
  .hero-panel, .feature-card, .project-card, .achievement-panel, .publication-list article, .blog-feature, .hire-card, .contact-form-wrap { padding: 22px; }
  .metric-row div { grid-template-columns: 1fr; }
  .portrait-card { align-items: flex-start; }
}