/* Adam B. Weiner, MD site styles.
   Font stack: Arial as requested by site owner. */

:root {
  --color-ink: #0f1c2e;
  --color-ink-soft: #2a3a52;
  --color-muted: #5a6478;
  --color-line: #e3e6ec;
  --color-bg: #ffffff;
  --color-bg-soft: #f6f8fb;
  --color-bg-tint: #eef3f9;
  --color-accent: #0a4b7a;        /* deep medical blue */
  --color-accent-hover: #0d3e63;
  --color-gold: #b8893d;          /* academic accent for donor sections */
  --color-gold-soft: #f6efe1;
  --shadow-card: 0 1px 2px rgba(15, 28, 46, 0.04), 0 8px 24px rgba(15, 28, 46, 0.06);
  --radius: 4px;
  --radius-lg: 8px;
  --max-w: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

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

h1, h2, h3, h4 {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--color-ink);
  line-height: 1.2;
  margin: 0 0 0.5em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: 2.6rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.05rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-muted); font-weight: 700; }

p { margin: 0 0 1em; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 0.6em;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.site-header {
  border-bottom: 1px solid var(--color-line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-ink);
  letter-spacing: 0.01em;
}
.nav-brand a { color: var(--color-ink); }
.nav-brand a:hover { text-decoration: none; }
.nav-brand small {
  display: block;
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
}
.nav-links a:hover { color: var(--color-accent); text-decoration: none; }

.nav-cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 9px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
}
.nav-cta:hover { background: var(--color-accent-hover); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 1.4rem;
  cursor: pointer;
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 20px;
    gap: 14px;
    border-bottom: 1px solid var(--color-line);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); text-decoration: none; }
.btn-secondary {
  background: #fff;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-secondary:hover { background: var(--color-bg-tint); text-decoration: none; }
.btn-gold {
  background: var(--color-gold);
  color: #fff;
  border-color: var(--color-gold);
}
.btn-gold:hover { background: #9a7330; border-color: #9a7330; text-decoration: none; }
.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}
.btn-ghost:hover { border-color: var(--color-ink-soft); text-decoration: none; }

/* ---------- Hero ---------- */

.hero {
  padding: 80px 0 72px;
  background: linear-gradient(180deg, #f6f8fb 0%, #ffffff 100%);
  border-bottom: 1px solid var(--color-line);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: 3rem;
  margin-bottom: 18px;
}
.hero p.lead {
  font-size: 1.18rem;
  color: var(--color-ink-soft);
  margin-bottom: 28px;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust {
  margin-top: 36px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-size: 0.92rem;
  color: var(--color-muted);
}
.hero-trust strong { color: var(--color-ink); display: block; font-size: 1.4rem; font-weight: 700; }
.hero-image {
  background: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 0.9rem;
  border: 1px solid var(--color-line);
  background-image: linear-gradient(135deg, #eef3f9 0%, #dde6f0 100%);
  overflow: hidden;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-image.headshot { background: #f0f4f9; }

.team-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto 12px;
  border: 1px solid var(--color-line);
  background: var(--color-bg-soft);
}

/* ---------- Logo strips (funders, institutions) ---------- */

.logo-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: center;
  gap: 32px;
  padding: 24px 0;
}
.logo-strip img {
  max-height: 64px;
  max-width: 100%;
  width: auto;
  margin: 0 auto;
  filter: grayscale(100%);
  opacity: 0.78;
  transition: filter 0.2s ease, opacity 0.2s ease;
}
.logo-strip img:hover { filter: grayscale(0); opacity: 1; }
@media (max-width: 860px) {
  .logo-strip { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

.funders-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: center;
  text-align: center;
  padding: 36px 0;
}
.funders-strip .funder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: #fff;
  min-height: 110px;
}
.funders-strip .funder strong {
  font-size: 0.92rem;
  color: var(--color-ink);
  letter-spacing: 0.02em;
  line-height: 1.25;
}
.funders-strip .funder span {
  font-size: 0.78rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
@media (max-width: 860px) {
  .funders-strip { grid-template-columns: repeat(2, 1fr); }
}

.callout-warning {
  background: var(--color-gold-soft);
  border-left: 4px solid var(--color-gold);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 18px 0;
  font-size: 0.98rem;
}
.callout-warning strong { color: #8a6420; }

.callout-prep {
  background: linear-gradient(135deg, #eef3f9 0%, #ffffff 100%);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  padding: 24px 28px;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin: 24px 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}
.callout-prep h3 { margin: 0 0 6px; font-size: 1.15rem; }
.callout-prep p { margin: 0 0 4px; color: var(--color-ink-soft); }
@media (max-width: 600px) {
  .callout-prep { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .hero { padding: 48px 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: 2.1rem; }
  .hero-image { aspect-ratio: 4 / 3; }
}

/* ---------- Sections ---------- */

section { padding: 72px 0; }

.section-tint { background: var(--color-bg-soft); }
.section-gold { background: var(--color-gold-soft); }

.section-header { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.section-header p { color: var(--color-ink-soft); font-size: 1.1rem; }

/* ---------- Cards / Grids ---------- */

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

@media (max-width: 860px) {
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-card); transform: translateY(-2px); }
.card h3 { margin-top: 8px; }
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--color-bg-tint);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

/* ---------- Stat / Trust strip ---------- */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
  padding: 48px 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.stat-strip .stat strong {
  display: block;
  font-size: 2.4rem;
  color: var(--color-accent);
  font-weight: 700;
  line-height: 1;
}
.stat-strip .stat span {
  display: block;
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
@media (max-width: 860px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Testimonial ---------- */

.testimonial {
  background: #fff;
  border-left: 4px solid var(--color-accent);
  padding: 28px 32px;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  box-shadow: var(--shadow-card);
}
.testimonial blockquote {
  margin: 0 0 14px;
  font-size: 1.1rem;
  color: var(--color-ink);
  line-height: 1.55;
  font-style: italic;
}
.testimonial cite {
  font-style: normal;
  color: var(--color-muted);
  font-size: 0.92rem;
}

/* ---------- Donor band ---------- */

.donor-band {
  background: linear-gradient(135deg, #0a4b7a 0%, #0d2a44 100%);
  color: #fff;
  padding: 64px 0;
}
.donor-band h2 { color: #fff; }
.donor-band p { color: rgba(255, 255, 255, 0.85); }
.donor-band .btn-gold { background: var(--color-gold); border-color: var(--color-gold); }

/* ---------- Forms ---------- */

.form { display: grid; gap: 14px; max-width: 560px; }
.form label { font-size: 0.92rem; font-weight: 700; color: var(--color-ink-soft); }
.form input, .form textarea, .form select {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
  width: 100%;
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}
.form textarea { min-height: 130px; resize: vertical; }

/* ---------- FAQ accordion ---------- */

.faq details {
  border-bottom: 1px solid var(--color-line);
  padding: 18px 0;
}
.faq summary {
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--color-accent);
  font-weight: 400;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details > p, .faq details > div { margin-top: 12px; color: var(--color-ink-soft); }

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

.page-header {
  background: var(--color-bg-soft);
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--color-line);
}
.page-header h1 { font-size: 2.4rem; margin-bottom: 12px; }
.page-header p { font-size: 1.15rem; color: var(--color-ink-soft); max-width: 720px; }

/* ---------- Two-column content ---------- */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: start;
}
.two-col aside { position: sticky; top: 96px; }
.aside-card {
  background: var(--color-bg-soft);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
}
.aside-card h4 { color: var(--color-accent); margin-bottom: 12px; letter-spacing: 0.08em; }
@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .two-col aside { position: static; }
}

/* ---------- Lists with icons ---------- */

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li {
  position: relative;
  padding: 6px 0 6px 32px;
  color: var(--color-ink-soft);
}
.checklist li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 6px;
  color: var(--color-accent);
  font-weight: 700;
}

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

.site-footer {
  background: var(--color-ink);
  color: #c8d0dc;
  padding: 56px 0 32px;
  margin-top: 0;
  font-size: 0.95rem;
}
.site-footer h5 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.site-footer a { color: #c8d0dc; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid #2a3a52;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: 6px 0; }
.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  font-size: 0.85rem;
  color: #8794a8;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- Utilities ---------- */

.text-center { text-align: center; }
.muted { color: var(--color-muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

.tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--color-bg-tint);
  color: var(--color-accent);
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}