/* AC&Co public site — pack v21 §3.3. Mockup + production share this sheet. */

:root {
  --bg: #f7f6f3;
  --text: #1a1a1a;
  --muted: #4a4a4a;
  --accent: #1e3a5f;
  --border: #ddd9d2;
  --max: 68rem;
  --space: clamp(1.25rem, 3vw, 2.5rem);
  font-size: 100%;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

h1,
h2,
h3,
.site-logo {
  font-family: "Newsreader", "Source Serif 4", Georgia, serif;
  font-weight: 500;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin: 0 0 1rem;
}

h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  margin: 2.5rem 0 0.75rem;
}

h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
  max-width: 42em;
}

.lead {
  font-size: 1.125rem;
  color: var(--muted);
}

a {
  color: var(--accent);
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration-thickness: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

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

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem var(--space);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-logo {
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: 0.02em;
}

.site-logo span {
  color: var(--accent);
}

.site-logo .logo-img {
  display: block;
  height: 1.65rem;
  width: auto;
}

.site-main dl dt {
  font-weight: 500;
  margin-top: 1rem;
}
.site-main dl dd {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9375rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--text);
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
  font-weight: 500;
}

.site-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--space);
  padding-bottom: 4rem;
}

.hero {
  padding: clamp(2rem, 6vw, 4rem) 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.hero__kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0 0 0.75rem;
  font-weight: 500;
}

.work-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  margin: 1.5rem 0 2rem;
}

.work-card {
  border: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  background: #fff;
}

.work-card h3 {
  margin-top: 0;
}

.work-card .issue {
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
}

.sector-list,
.perspectives-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.sector-list li,
.perspectives-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  max-width: 42em;
}

.callout {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 0 0.75rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem var(--space);
  font-size: 0.875rem;
  color: var(--muted);
  max-width: var(--max);
  margin: 0 auto;
}

.mockup-banner {
  background: var(--accent);
  color: #fff;
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
}

.mockup-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  padding: 0.75rem var(--space);
  border-bottom: 1px solid var(--border);
  background: #fff;
}

.mockup-nav button {
  font: inherit;
  font-size: 0.875rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: pointer;
  border-radius: 2px;
}

.mockup-nav button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

[data-mockup-page] {
  display: none;
}

[data-mockup-page].is-active {
  display: block;
}

@media (max-width: 40rem) {
  .site-nav {
    width: 100%;
  }
}

/* Logo variations — mockups/logo-variations.html */
.logo-v1 span {
  color: var(--accent);
}
.logo-v2 {
  font-family: Inter, sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
}
.logo-v3 {
  font-family: Inter, sans-serif;
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
}
.logo-v4 {
  font-family: Newsreader, serif;
  font-size: 1.1rem;
  line-height: 1.1;
  text-decoration: none;
  color: var(--text);
  display: inline-block;
  border-left: 3px solid var(--accent);
  padding-left: 0.5rem;
}
.logo-v4 small {
  display: block;
  font-family: Inter, sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
.logo-v5 {
  font-family: Newsreader, serif;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--text);
}
.logo-v5 em {
  font-style: normal;
  color: var(--accent);
}

.logo-showcase {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  margin: 2rem 0;
}
.logo-showcase article {
  border: 1px solid var(--border);
  padding: 1.5rem;
  background: #fff;
  min-height: 6rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.in-page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.875rem;
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
}
.in-page-nav a {
  text-decoration: none;
  color: var(--muted);
}
.in-page-nav a:hover {
  color: var(--accent);
}

.perspectives-theme {
  margin: 0.5rem 0 1.25rem;
  padding-left: 1rem;
  border-left: 2px solid var(--border);
}
.perspectives-theme strong {
  display: block;
  font-weight: 500;
  margin-bottom: 0.25rem;
}
.perspectives-theme span {
  font-size: 0.9rem;
  color: var(--muted);
}

.section-anchor {
  scroll-margin-top: 5rem;
}