/* ============================================================
   Fairmont Clinical — shared stylesheet
   Site Management Organization for clinical trials.
   Durham, NC. Est. 2013. See about.html for the founding story.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,wght@0,500;0,600;0,700;1,500&family=Work+Sans:wght@400;500;600;700&family=Roboto+Mono:wght@400;500&display=swap');

:root {
  --navy: #232a4d;
  --navy-deep: #171b33;
  --paper: #f7f7f5;
  --paper-deep: #eae9e5;
  --violet: #6d4e8c;
  --violet-deep: #52396b;
  --amber: #c48a3e;
  --ink: #1c2033;
  --line: #d8d7d2;
  --line-dark: #333a5c;

  --font-display: "Newsreader", serif;
  --font-body: "Work Sans", sans-serif;
  --font-mono: "Roboto Mono", "Courier New", monospace;

  --max: 1140px;
  --pad: clamp(20px, 5vw, 60px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.24;
  margin: 0 0 0.5em;
  color: var(--ink);
}
h1 { font-size: clamp(2rem, 4.2vw, 2.9rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.85rem); }
h3 { font-size: clamp(1.05rem, 1.8vw, 1.2rem); font-family: var(--font-body); font-weight: 700; }

p { margin: 0 0 1.1em; color: var(--ink); opacity: 0.8; max-width: 64ch; }
a { color: var(--violet); text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 3px; font-weight: 600; }
a:hover { color: var(--amber); }

main { scroll-margin-top: 80px; }

.label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.7rem;
  color: var(--violet);
}

.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--pad); }

.skip-link {
  position: absolute; left: -9999px; top: auto;
  background: var(--navy-deep); color: var(--paper);
  padding: 10px 16px; z-index: 100; text-decoration: none;
  font-family: var(--font-mono); font-size: 0.8rem;
}
.skip-link:focus { left: 16px; top: 16px; }

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible,
textarea:focus-visible, label:focus-visible, .nav-toggle-label:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- Header / Nav ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--paper); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; padding-block: 15px; }

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { flex-shrink: 0; color: var(--violet); }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; }
.brand-sub { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.07em; text-transform: uppercase; color: var(--violet); opacity: 0.8; margin-top: 3px; }

nav.primary-nav { display: flex; align-items: center; gap: 22px; }
nav.primary-nav a {
  font-family: var(--font-body); font-weight: 600; font-size: 0.82rem;
  text-decoration: none; color: var(--ink); padding-bottom: 3px; border-bottom: 2px solid transparent;
}
nav.primary-nav a:hover, nav.primary-nav a[aria-current="page"] { border-bottom-color: var(--amber); color: var(--violet); }
.nav-cta { background: var(--navy); color: var(--paper) !important; padding: 8px 16px; border-radius: 3px; border-bottom: none !important; }
.nav-cta:hover { background: var(--violet); color: var(--paper) !important; }

.nav-toggle { display: none; }
.nav-toggle-label { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; }
.nav-toggle-label span { display: block; width: 22px; height: 2px; background: var(--ink); }

/* ---------- Buttons / links ---------- */
.btn {
  display: inline-block; font-family: var(--font-body); font-weight: 600; font-size: 0.86rem;
  text-decoration: none; padding: 12px 24px; border-radius: 3px; border: 2px solid var(--navy);
  transition: background-color .15s ease, color .15s ease;
}
.btn-primary { background: var(--navy); color: var(--paper); }
.btn-primary:hover { background: var(--violet); border-color: var(--violet); }
.btn-outline { background: transparent; color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: var(--paper); }
.text-link { font-family: var(--font-body); font-weight: 700; font-size: 0.88rem; }

/* ---------- Opening ---------- */
.opening { padding-block: clamp(46px, 7vw, 78px) clamp(30px, 5vw, 44px); }
.opening h1 { max-width: 21ch; }
.opening .lede { max-width: 60ch; }
.cta-row { display: flex; gap: 16px; margin-top: 22px; flex-wrap: wrap; }

/* ---------- Bridge diagram (the signature device) ---------- */
.bridge-wrap { padding-block: 10px clamp(30px, 5vw, 50px); }
.bridge-diagram { max-width: 820px; margin-inline: auto; }
.bridge-caption { text-align: center; font-family: var(--font-mono); font-size: 0.76rem; color: var(--violet); margin-top: 4px; }

/* ---------- Page header ---------- */
.page-header { padding-block: clamp(42px, 7vw, 70px) 36px; border-bottom: 1px solid var(--line); }
.page-header h1 { max-width: 22ch; }
.page-header .lede { margin-top: 14px; }

.lede { font-size: 1.06rem; max-width: 58ch; opacity: 0.84; }

/* ---------- Sections ---------- */
section { padding-block: clamp(44px, 7vw, 78px); }
.alt-bg { background: var(--paper-deep); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.dark-bg { background: var(--navy-deep); color: var(--paper); }
.dark-bg p { color: var(--paper); opacity: 0.72; }
.dark-bg .label { color: #b6a3d1; }
.section-head { max-width: 660px; margin-bottom: 34px; }
.section-head .label { display: block; margin-bottom: 12px; }

/* Services — plain rule-divided list */
.service-list { border-top: 2px solid var(--ink); }
.service-item { padding-block: 30px; border-bottom: 1px solid var(--line); }
.service-item .label { margin-bottom: 8px; display: block; }
.service-item h3 { margin-bottom: 10px; font-size: clamp(1.15rem, 2vw, 1.35rem); font-family: var(--font-display); font-weight: 600; }
.service-item ul { margin: 14px 0 0; padding-left: 20px; }
.service-item li { margin-bottom: 6px; opacity: 0.8; }

/* Trial lifecycle steps */
.lifecycle { border-top: 2px solid var(--ink); }
.lifecycle-step { display: grid; grid-template-columns: 150px 1fr; border-bottom: 1px solid var(--line); }
.lifecycle-step .stage-marker { font-family: var(--font-mono); font-size: 0.72rem; color: var(--violet); padding: 26px 18px 26px 0; }
.lifecycle-step .stage-marker strong { display: block; font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.lifecycle-step .stage-content { padding: 26px 0 26px 24px; border-left: 1px solid var(--line); }
.lifecycle-step .stage-content h3 { margin-bottom: 8px; }

/* Enrollment funnel */
.funnel { display: flex; flex-direction: column; gap: 2px; max-width: 640px; margin-inline: auto; }
.funnel-stage { background: var(--navy); color: var(--paper); padding: 14px 24px; display: flex; justify-content: space-between; align-items: baseline; font-family: var(--font-mono); font-size: 0.82rem; }
.funnel-stage .funnel-pct { font-weight: 700; font-size: 1rem; }
.funnel-stage:nth-child(1) { background: var(--navy); }
.funnel-stage:nth-child(2) { background: #2f3760; }
.funnel-stage:nth-child(3) { background: var(--violet-deep); }
.funnel-stage:nth-child(4) { background: var(--violet); }
.funnel-stage:nth-child(5) { background: var(--amber); color: var(--ink); }

/* Team roster */
.roster-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.roster-card { background: var(--paper); padding: 24px 22px; }
.roster-card .name { font-family: var(--font-display); font-weight: 700; font-size: 1.12rem; }
.roster-card .role { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.03em; text-transform: uppercase; color: var(--violet); display: block; margin: 3px 0 10px; }

/* Principles (About) — distinct from the roster */
.principle-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.principle { background: var(--paper); padding: 24px 22px; }
.principle .principle-index { font-family: var(--font-mono); font-size: 0.7rem; color: var(--violet); }
.principle h3 { margin: 8px 0 8px; font-family: var(--font-display); font-weight: 600; }

/* Protocol Notes (journal) */
.note-item { border-bottom: 1px solid var(--line); padding-block: 26px; }
.note-item .label { margin-bottom: 8px; display: block; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: start; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.form-grid .full { grid-column: 1 / -1; }
label { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--violet); display: block; margin-bottom: 6px; }
input, textarea, select {
  width: 100%; border: 1px solid var(--ink); background: var(--paper); padding: 10px 12px;
  font-family: var(--font-body); font-size: 1rem; color: var(--ink); border-radius: 3px;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--violet); outline-offset: 1px; }

/* ---------- Footer ---------- */
footer.site-footer { background: var(--navy-deep); color: var(--paper); padding-block: 46px 24px; }
footer.site-footer a { color: var(--paper); opacity: 0.78; text-decoration: none; font-weight: 400; }
footer.site-footer a:hover { opacity: 1; color: #c9b3e8; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 22px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; gap: 16px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.76rem; }
.footer-meta { font-family: var(--font-body); font-size: 0.88rem; opacity: 0.76; text-align: right; }
.footer-bottom { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line-dark); font-family: var(--font-mono); font-size: 0.68rem; opacity: 0.55; }

/* ---------- 404 ---------- */
.error-page { padding-block: 96px 116px; }

/* ---------- Reduced motion / accessibility floor ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-toggle-label { display: flex; }
  nav.primary-nav {
    position: fixed; top: 60px; left: 0; right: 0; z-index: 45;
    background: var(--paper); flex-direction: column; align-items: flex-start;
    padding: 20px var(--pad) 26px; gap: 16px;
    transform: translateY(-120%); transition: transform .25s ease;
    border-bottom: 1px solid var(--line);
  }
  .nav-toggle:checked ~ nav.primary-nav { transform: translateY(0); }
  .roster-grid, .principle-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-row { flex-direction: column; }
  .footer-meta { text-align: left; }
  .lifecycle-step { grid-template-columns: 100px 1fr; }
  .funnel-stage { flex-direction: column; gap: 2px; }
}