:root {
  /* Institute for America Palette - Authoritative, Editorial */
  --c-flag-blue: #0A1F3E;
  --c-deep-navy: #061226;
  --c-crimson: #BA1C21;
  --c-off-white: #F9F8F6;
  --c-paper: #F3F1EC;
  --c-slate: #546473;
  --c-ink: #111111;
  --c-accent-gold: #D4AF37;

  /* Typography */
  --font-display: 'Zilla Slab', serif;
  --font-body: 'Public Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Layout & Spacing */
  --max-w-content: 1100px;
  --max-w-article: 780px;
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 1rem;
  --spacing-4: 1.5rem;
  --spacing-5: 2rem;
  --spacing-6: 3rem;
  --spacing-8: 4rem;
  --spacing-12: 6rem;

  /* Utilities */
  --border-radius-sm: 2px;
  --border-radius-md: 4px;
  --transition: all 0.2s ease-in-out;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--c-off-white);
  color: var(--c-ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-deep-navy);
  margin-bottom: var(--spacing-3);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--spacing-3);
}

a {
  color: var(--c-crimson);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: var(--transition);
}

a:hover {
  color: var(--c-deep-navy);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-w-content);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.article-container {
  max-width: var(--max-w-article);
}

.grid {
  display: grid;
  gap: var(--spacing-5);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }

/* Editorial Specific */
.kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-crimson);
  display: block;
  margin-bottom: var(--spacing-2);
}

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--c-slate);
  line-height: 1.5;
  margin-bottom: var(--spacing-4);
}

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin-bottom: var(--spacing-4);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  text-align: left;
}

th {
  background-color: var(--c-paper);
  padding: var(--spacing-3);
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--c-deep-navy);
  border-bottom: 2px solid var(--c-deep-navy);
}

td {
  padding: var(--spacing-3);
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

/* Header */
.site-header {
  background-color: var(--c-flag-blue);
  color: var(--c-off-white);
  padding: var(--spacing-3) 0;
  border-bottom: 4px solid var(--c-crimson);
}

.site-header a {
  color: var(--c-off-white);
  text-decoration: none;
}

.site-header .logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  gap: var(--spacing-4);
  font-size: 0.9rem;
  font-weight: 600;
}

.main-nav a[aria-current="page"] {
  color: var(--c-accent-gold);
  border-bottom: 2px solid var(--c-accent-gold);
  padding-bottom: 2px;
}

/* Footer */
.site-footer {
  background-color: var(--c-deep-navy);
  color: var(--c-paper);
  padding: var(--spacing-8) 0 var(--spacing-4);
  margin-top: var(--spacing-12);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-6);
}

.footer-col h4 {
  color: var(--c-off-white);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-3);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--spacing-2);
}

.footer-col a {
  color: var(--c-slate);
  text-decoration: none;
  font-size: 0.95rem;
}

.footer-col a:hover {
  color: var(--c-off-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-4);
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--c-slate);
}

/* Structural Components */
.section-title {
  border-top: 2px solid var(--c-deep-navy);
  padding-top: var(--spacing-2);
  margin-bottom: var(--spacing-5);
}

.section-title h2 {
  font-size: 1.5rem;
  margin-bottom: 0;
}

/* Cards & Widgets */
.card {
  background-color: #fff;
  border: 1px solid rgba(0,0,0,0.1);
  padding: var(--spacing-4);
  height: 100%;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-2);
}

.tool-widget {
  background-color: var(--c-paper);
  border-left: 4px solid var(--c-crimson);
  padding: var(--spacing-4);
  margin: var(--spacing-5) 0;
}

.input-group {
  margin-bottom: var(--spacing-3);
}

.input-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-1);
  font-size: 0.9rem;
}

.input-group input, .input-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid rgba(0,0,0,0.2);
  font-family: var(--font-body);
  font-size: 1rem;
}

.btn {
  display: inline-block;
  background-color: var(--c-deep-navy);
  color: var(--c-off-white);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
}

.btn:hover {
  background-color: var(--c-crimson);
  color: var(--c-off-white);
}

/* Asymmetrical Layout specific for home */
.hero-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-6);
  padding: var(--spacing-8) 0;
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
  .hero-layout {
    grid-template-columns: 1fr;
  }
  .main-nav {
    flex-wrap: wrap;
  }
}