/* NPAMN — shared site styles */

:root {
  --navy: #1a2b4c;
  --navy-dark: #11203a;
  --ink: #2b2b2b;
  --muted: #5c5c5c;
  --rule: #e1e1e1;
  --bg: #ffffff;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

a {
  color: var(--navy);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* Skip link for keyboard users */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 8px 14px;
  z-index: 100;
}
.skip-link:focus {
  left: 8px;
  top: 8px;
}

/* ---------- Header / Nav ---------- */

header.site-header {
  border-bottom: 1px solid var(--rule);
  background: #fff;
}

.nav-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--navy-dark);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--navy-dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

nav.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

nav.primary-nav a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
}

nav.primary-nav a[aria-current="page"] {
  color: var(--navy-dark);
  font-weight: 700;
  border-bottom: 2px solid var(--navy-dark);
  padding-bottom: 2px;
}

.nav-toggle {
  display: none;
}

@media (max-width: 720px) {
  nav.primary-nav ul {
    display: none;
  }
  .nav-toggle {
    display: inline-block;
    background: none;
    border: 1px solid var(--rule);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.9rem;
    cursor: pointer;
  }
  nav.primary-nav.open ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: absolute;
    right: 24px;
    top: 64px;
    background: #fff;
    border: 1px solid var(--rule);
    padding: 16px 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }
}

/* ---------- Hero (Home page) ---------- */

.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.hero img.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10, 16, 30, 0.55);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 40px 24px;
  max-width: 800px;
}

.hero-content .eyebrow {
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 0.8rem;
  opacity: 0.85;
  margin-bottom: 14px;
}

.hero-content h1 {
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 0;
}

/* ---------- Page header (non-home pages) ---------- */

.page-header {
  background: url('assets/hero_image.jpg') center center / cover no-repeat;
  color: #fff;
  padding: 56px 24px 40px;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10, 16, 30, 0.55);
}

.page-header h1 {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
}

/* ---------- Main content ---------- */

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 24px 72px;
  text-align: center;
}

main p {
  color: var(--ink);
  max-width: 760px;
}

main h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy-dark);
  margin-top: 0;
}

.lede {
  font-size: 1.1rem;
  color: var(--ink);
  max-width: 760px;
  margin-bottom: 28px;
}

ul.domain-list {
  max-width: 760px;
  padding-left: 22px;
  margin: 18px 0 32px;
}

ul.domain-list li {
  margin-bottom: 12px;
}

.org-note {
  background: #f4f6f9;
  border-left: 3px solid var(--navy-dark);
  padding: 18px 22px;
  max-width: 760px;
  margin-top: 32px;
  font-size: 0.95rem;
  color: var(--muted);
}

/* ---------- Publications ---------- */

.publication {
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 28px 30px;
  margin-bottom: 32px;
}

.publication h2 {
  margin-bottom: 6px;
  font-size: 1.25rem;
}

.publication .authors {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.publication .article-link {
  display: inline-block;
  margin-bottom: 22px;
  font-weight: 600;
}

.endorsement-group {
  margin-top: 18px;
}

.endorsement-group h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin: 0 0 12px;
  font-weight: 600;
}

.logo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
  margin-bottom: 22px;
}

.logo-row.centered {
  justify-content: center;
}

.logo-row img {
  max-height: 56px;
  width: auto;
  object-fit: contain;
}

/* ---------- Contact form ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  max-width: 600px;
}

.contact-grid .full {
  grid-column: 1 / -1;
}

label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}

label .required {
  color: #b3261e;
}

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

button.submit-btn {
  background: var(--navy-dark);
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
}

button.submit-btn:hover {
  background: var(--navy);
}

@media (max-width: 600px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Footer ---------- */

footer.site-footer {
  border-top: 1px solid var(--rule);
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}