/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--space-m);
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 1.75rem); }

p {
  margin-top: 0;
  margin-bottom: var(--space-m);
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-accent-dark);
}

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

ul, ol {
  margin-top: 0;
  margin-bottom: var(--space-m);
  padding-left: var(--space-l);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-m);
  background: var(--color-surface);
}

th, td {
  padding: var(--space-s);
  border: 1px solid var(--color-border);
  text-align: left;
}
th {
  background: var(--color-bg-alt);
  font-weight: 600;
  font-family: var(--font-display);
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-m);
}
.container-narrow {
  max-width: var(--container-narrow);
}

/* Header & Nav */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-s);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  text-decoration: none;
  color: var(--color-primary);
}
.site-nav {
  display: flex;
  align-items: center;
}
.menu-list {
  display: flex;
  gap: var(--space-m);
  list-style: none;
  margin: 0;
  padding: 0;
}
.menu-list a {
  text-decoration: none;
  color: var(--color-secondary);
  font-weight: 500;
  font-size: 0.9375rem;
}
.menu-list a:hover {
  color: var(--color-primary);
}
.menu-list a.active {
  color: var(--color-accent);
  text-decoration: underline;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2xs);
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .menu-list {
    display: none;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: var(--space-m);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .menu-list.open {
    display: flex;
  }
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: var(--color-surface);
  padding: var(--space-2xl) 0 var(--space-m);
  margin-top: var(--space-3xl);
}
.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}
.footer-col strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.125rem;
  margin-bottom: var(--space-s);
}
.footer-col p {
  color: #D1D5DB;
  font-size: 0.875rem;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col ul li {
  margin-bottom: var(--space-2xs);
}
.footer-col a {
  color: #D1D5DB;
  text-decoration: none;
  font-size: 0.875rem;
}
.footer-col a:hover {
  color: var(--color-surface);
  text-decoration: underline;
}
.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: var(--space-m);
  text-align: center;
  font-size: 0.75rem;
  color: #9CA3AF;
}

/* Typography components */
.intro-lead {
  font-size: 1.25rem;
  color: var(--color-secondary);
  max-width: 65ch;
  margin-bottom: var(--space-l);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-s);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-surface);
}
.btn-primary:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-surface);
}
.btn-outline {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

/* Callouts / Alerts */
.callout {
  padding: var(--space-m);
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-accent);
  margin-bottom: var(--space-l);
}
.callout-warning {
  border-left-color: var(--color-danger);
  background: var(--color-danger-light);
}
.callout h4 {
  margin-bottom: var(--space-2xs);
  font-size: 1.125rem;
}
.callout p:last-child {
  margin-bottom: 0;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-m);
}
label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-3xs);
}
input[type="text"], input[type="number"], select, textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-s);
  font-family: inherit;
  font-size: 1rem;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Layout Utilities */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

.editorial-spread {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin: var(--space-3xl) 0;
}
@media (min-width: 1024px) {
  .editorial-spread {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}