/* America 250 Reader — patriotic stylesheet */
:root {
  --navy: #002868;
  --navy-deep: #001a4d;
  --red: #BF0A30;
  --red-deep: #8a0722;
  --gold: #F5A623;
  --light: #F8F6F0;
  --paper: #FBF9F2;
  --text: #1a1a1a;
  --muted: #5a5a5a;
  --rule: #d8d2c2;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--text);
  font-family: 'Georgia', 'Garamond', 'Times New Roman', serif;
  line-height: 1.6;
}

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

.reader-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ───── Top header bar ───── */
.reader-header {
  background: var(--navy);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-bottom: 4px solid var(--red);
}
.reader-breadcrumb {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.85);
}
.reader-breadcrumb a {
  color: rgba(255,255,255,0.95);
  text-decoration: underline;
}
.reader-breadcrumb span { color: var(--gold); }

/* ───── Hero ───── */
.reader-hero {
  background:
    linear-gradient(135deg, rgba(0,40,104,0.92), rgba(0,26,77,0.95)),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 12px, transparent 12px 24px);
  color: #fff;
  padding: 3rem 1.5rem;
  position: relative;
  border-bottom: 6px solid var(--gold);
}
.reader-hero .reader-wrap { position: relative; }
.reader-hero__num {
  position: absolute;
  top: 0;
  right: 1.5rem;
  background: var(--gold);
  color: var(--navy-deep);
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  letter-spacing: 0.06em;
}
.reader-hero__title {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: clamp(1.7rem, 3.4vw, 2.7rem);
  font-weight: 700;
  margin: 0 0 0.6rem;
  line-height: 1.2;
}
.reader-hero__sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.88);
  margin: 0 0 1.5rem;
}
.reader-hero__btn {
  display: inline-block;
  background: var(--red);
  color: #fff;
  padding: 0.75rem 1.4rem;
  border-radius: 4px;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.reader-hero__btn:hover {
  background: var(--red-deep);
  border-color: var(--gold);
  text-decoration: none;
}

/* ───── TOC grid (index page) ───── */
.toc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.toc-card {
  display: block;
  background: #fff;
  border: 1px solid var(--rule);
  border-left: 4px solid var(--navy);
  padding: 1.25rem;
  border-radius: 4px;
  transition: transform 0.12s, box-shadow 0.12s, border-color 0.12s;
  color: var(--text);
}
.toc-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,40,104,0.10);
  border-left-color: var(--red);
  text-decoration: none;
}
.toc-card__num {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
}
.toc-card__title {
  font-family: 'Georgia', serif;
  font-size: 1.1rem;
  margin: 0.35rem 0 0;
  color: var(--navy);
  line-height: 1.35;
}

.reader-back {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2.5rem 0;
  padding: 1.25rem 0;
  border-top: 2px solid var(--rule);
  border-bottom: 2px solid var(--rule);
}
.dl-btn {
  background: var(--navy);
  color: #fff;
  padding: 0.55rem 1rem;
  border-radius: 4px;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
}
.dl-btn:hover { background: var(--navy-deep); text-decoration: none; }

/* ───── Section page two-column layout ───── */
.reader-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2.5rem;
  align-items: start;
  padding: 2rem 1.5rem 1rem;
}

.reader-sidebar {
  position: sticky;
  top: 1rem;
  align-self: start;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}
.reader-sidebar .sidebar-label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
  margin: 0 0 0.6rem;
}
.sidebar-link {
  display: block;
  padding: 0.5rem 0.6rem;
  border-left: 3px solid transparent;
  font-size: 0.92rem;
  line-height: 1.35;
  color: var(--text);
  border-radius: 2px;
  margin-bottom: 0.15rem;
}
.sidebar-link:hover {
  background: rgba(0,40,104,0.05);
  text-decoration: none;
}
.sidebar-link.active {
  border-left-color: var(--navy);
  background: rgba(0,40,104,0.06);
  font-weight: 700;
  color: var(--navy);
}

/* Mobile sections selector (collapsible) */
.reader-sidebar-mobile {
  display: none;
  margin: 1.25rem 0;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.65rem 1rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}
.reader-sidebar-mobile summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--navy);
}
.reader-sidebar-mobile .sidebar-link { padding: 0.45rem 0.4rem; }

/* ───── Main reading column ───── */
.reader-main {
  max-width: 720px;
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--text);
}
.section-heading {
  font-family: 'Georgia', serif;
  color: var(--navy);
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--gold);
}
.reader-main h2 {
  color: var(--navy);
  font-family: 'Georgia', serif;
  font-size: 1.45rem;
  margin: 2rem 0 0.75rem;
  line-height: 1.3;
}
.reader-main h3 {
  color: var(--red);
  font-family: 'Georgia', serif;
  font-size: 1.2rem;
  margin: 1.6rem 0 0.5rem;
}
.reader-main h4 {
  color: var(--text);
  font-family: 'Helvetica Neue', Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.92rem;
  margin: 1.4rem 0 0.4rem;
}
.reader-main p { margin: 0 0 1rem; }
.reader-main ul {
  padding-left: 1.5rem;
  margin: 0 0 1.25rem;
}
.reader-main ul li { margin-bottom: 0.4rem; }

.reader-main strong { color: var(--navy-deep); }
.reader-main em { color: var(--red-deep); font-style: italic; }

/* ───── Tables ───── */
.reader-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.reader-main table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: #fff;
}
.reader-main th, .reader-main td {
  border: 1px solid var(--rule);
  padding: 0.6rem 0.8rem;
  vertical-align: top;
  text-align: left;
}
.reader-main thead th {
  background: var(--navy);
  color: #fff;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-weight: 700;
  letter-spacing: 0.03em;
}
.reader-main tbody tr:nth-child(odd) { background: var(--light); }
.reader-main tbody tr:nth-child(even) { background: #fff; }

/* ───── Callouts (single-cell tables) ───── */
.reader-callout {
  background: #FFF8E1;
  border-left: 6px solid var(--gold);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  color: #1a1a1a;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}
.reader-callout__title {
  margin: 0 0 0.85rem 0;
  color: var(--red);
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.reader-callout p {
  margin: 0 0 0.85rem 0;
  font-weight: 400;
  color: #1a1a1a;
}
.reader-callout p:last-child { margin-bottom: 0; }
.reader-callout strong { color: #000; font-weight: 700; }

/* ───── Portraits ───── */
.reader-portrait {
  float: right;
  margin: 0.25rem 0 1rem 1.5rem;
  max-width: 200px;
}
.reader-portrait img {
  display: block;
  max-width: 180px;
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 3px solid var(--navy);
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
}
/* clear floats so following sections start fresh */
.reader-main h2, .reader-main h3 { clear: right; }

/* ───── Bottom prev/next nav ───── */
.reader-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 1.5rem;
  margin-top: 1rem;
  border-top: 2px solid var(--rule);
}
.nav-btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  padding: 0.7rem 1rem;
  border-radius: 4px;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  border: 2px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.nav-btn:hover {
  background: var(--navy-deep);
  text-decoration: none;
  border-color: var(--gold);
}
.nav-btn--prev { justify-self: start; }
.nav-btn--next { justify-self: end; background: var(--red); }
.nav-btn--next:hover { background: var(--red-deep); }
.nav-btn--toc { background: transparent; color: var(--navy); border: 2px solid var(--navy); }
.nav-btn--toc:hover { background: var(--navy); color: #fff; }
.nav-btn--disabled {
  background: #d0cfc7;
  color: #7a7a7a;
  pointer-events: none;
  cursor: not-allowed;
  border-color: transparent;
}

/* ───── Footer ───── */
.reader-footer {
  background: var(--navy-deep);
  color: rgba(255,255,255,0.75);
  text-align: center;
  padding: 2rem 1.5rem;
  margin-top: 3rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.88rem;
  border-top: 4px solid var(--red);
}
.reader-footer .nav-logo {
  display: block;
  color: var(--gold);
  letter-spacing: 0.2em;
  font-weight: 700;
  margin-bottom: 0.4rem;
  font-size: 1rem;
}
.reader-footer a:hover { color: #fff; }

/* ───── Mobile ───── */
@media (max-width: 768px) {
  .reader-body {
    grid-template-columns: 1fr;
    padding: 1.25rem 1rem;
    gap: 1rem;
  }
  .reader-sidebar { display: none; }
  .reader-sidebar-mobile { display: block; }
  .reader-hero { padding: 2rem 1rem; }
  .reader-hero__num { position: static; display: inline-block; margin-bottom: 0.75rem; }
  .section-heading { font-size: 1.5rem; }
  .reader-portrait {
    float: none;
    margin: 0 auto 1rem;
    max-width: 220px;
  }
  .reader-portrait img { margin: 0 auto; }
  .reader-nav {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .nav-btn--prev, .nav-btn--next, .nav-btn--toc {
    justify-self: stretch;
    text-align: center;
  }
}