:root {
  --primary: #3b1f61;
  --bg-light: #f7f6f8;
  --bg-dark: #18141e;
  --surface-light: #ffffff;
  --surface-dark: #2a2435;
  --text-light: #141019;
  --text-muted: #6f5b8b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Lexend", sans-serif;
  background: var(--bg-light);
  color: var(--text-light);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

html.dark body {
  background: var(--bg-dark);
  color: #f3f3f3;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #ede9f1;
  z-index: 50;
}

html.dark .site-header {
  background: rgba(24, 20, 30, 0.95);
  border-color: #333;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav {
  display: none;
  gap: 32px;
}

.nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
}

.nav a.active {
  color: var(--primary);
  font-weight: 700;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 20px;
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
}

/* Layout */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
  flex-grow: 1;
}

/* Intro */

.page-intro h2 {
  font-size: 40px;
  margin-bottom: 16px;
  color: var(--primary);
}

.page-intro p {
  max-width: 640px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* Filters */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 40px 0;
}

.filter {
  height: 36px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid #ede9f1;
  background: white;
  cursor: pointer;
  font-size: 14px;
}

.filter.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* List header */

.list-header {
  display: none;
  grid-template-columns: 1fr 8fr 3fr;
  gap: 24px;
  font-size: 12px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 2px solid #ede9f1;
  padding: 12px 24px;
  margin-bottom: 16px;
}

.align-right {
  text-align: right;
}

/* Citations */

.citations {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.citation {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 20px;
  background: white;
  border-radius: 16px;
  transition: background 0.2s, border 0.2s;
}

.citation:hover {
  background: rgba(59, 31, 97, 0.03);
}

.year {
  font-weight: 700;
  color: var(--primary);
  background: #f3f0f7;
  padding: 4px 8px;
  border-radius: 6px;
  width: fit-content;
}

.details h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.details p {
  font-size: 14px;
  color: var(--text-muted);
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
}

.btn.primary {
  background: rgba(59, 31, 97, 0.1);
  color: var(--primary);
}

.btn.primary:hover {
  background: var(--primary);
  color: white;
}

.btn.success {
  background: #ecfdf5;
  color: #047857;
}

.btn.outline {
  border: 1px solid #ddd;
  color: var(--text-muted);
}

/* Footer */

/* .site-footer {
  border-top: 1px solid #ede9f1;
  padding: 48px 24px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.socials {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
} */

/* Responsive */

@media (min-width: 768px) {
  .nav {
    display: flex;
  }

  .citation {
    grid-template-columns: 1fr 8fr 3fr;
    align-items: center;
  }

  .list-header {
    display: grid;
  }
}