/* ==========================================================================
   Morning Briefings - Editorial Broadsheet Design
   ========================================================================== */

/* --------------------------------------------------------------------------
   Fonts
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Source+Sans+3:ital,wght@0,300;0,400;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* --------------------------------------------------------------------------
   CSS Variables - Editorial Palette
   -------------------------------------------------------------------------- */
:root {
  /* Colors */
  --ink: #0d0d0d;
  --paper: #f7f5f0;
  --accent: #c41230;
  --muted: #6b6b6b;
  --rule: #d4d0c8;
  --link: #1a4d7c;
  --link-hover: #c41230;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Spacing */
  --max-width: 760px;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8e4dc;
    --paper: #1a1918;
    --accent: #e85a6f;
    --muted: #9a958d;
    --rule: #3d3a36;
    --link: #7db4d8;
    --link-hover: #e85a6f;
  }
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  padding: var(--space-lg) var(--space-md);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

header {
  max-width: var(--max-width);
  margin: 0 auto var(--space-xl);
  text-align: center;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
}

footer {
  max-width: var(--max-width);
  margin: var(--space-xxl) auto 0;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--rule);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

footer p {
  margin: 0;
}

/* --------------------------------------------------------------------------
   Masthead
   -------------------------------------------------------------------------- */
.masthead {
  margin-bottom: var(--space-lg);
}

.masthead-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.masthead-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.masthead-title:hover {
  color: var(--accent);
}

.masthead-date {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--muted);
}

.masthead-rule {
  border: none;
  height: 3px;
  background: var(--ink);
  margin: var(--space-sm) 0;
}

.masthead-rule.thin {
  height: 1px;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
}

h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.25;
  margin: var(--space-xl) 0 var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--ink);
}

h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.3;
  margin: var(--space-lg) 0 var(--space-sm);
  color: var(--ink);
}

p {
  margin-bottom: var(--space-md);
}

a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--link-hover);
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

/* --------------------------------------------------------------------------
   Lists
   -------------------------------------------------------------------------- */
ul, ol {
  margin: 0 0 var(--space-md) var(--space-lg);
}

li {
  margin-bottom: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Horizontal Rules
   -------------------------------------------------------------------------- */
hr {
  border: none;
  height: 1px;
  background: var(--rule);
  margin: var(--space-xl) 0;
}

/* Decorative section divider */
.section-divider {
  text-align: center;
  margin: var(--space-xl) 0;
  position: relative;
}

.section-divider::before {
  content: '◆';
  display: block;
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.5em;
}

/* --------------------------------------------------------------------------
   Featured Briefing (Homepage)
   -------------------------------------------------------------------------- */
.featured-briefing {
  background: transparent;
  margin-bottom: var(--space-xxl);
}

.featured-rule {
  display: none;
}

.featured-content {
  font-size: 1rem;
  line-height: 1.7;
}

.featured-content h2 {
  font-size: 1.35rem;
  margin-top: var(--space-xl);
}

.featured-content h3 {
  font-size: 1.1rem;
}

.featured-content p:first-of-type {
  font-size: 1.1rem;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Archive Section
   -------------------------------------------------------------------------- */
.archive-section {
  margin-top: var(--space-xl);
}

.archive-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.archive-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.archive-rule {
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.archive-list li {
  margin: 0;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--rule);
}

.archive-list li:last-child {
  border-bottom: none;
}

.archive-list a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.15s ease;
}

.archive-list a::before {
  content: '▸';
  color: var(--muted);
  font-size: 0.75rem;
  transition: color 0.15s ease, transform 0.15s ease;
}

.archive-list a:hover {
  color: var(--accent);
}

.archive-list a:hover::before {
  color: var(--accent);
  transform: translateX(2px);
}

.archive-list time {
  color: inherit;
}

/* --------------------------------------------------------------------------
   Empty State
   -------------------------------------------------------------------------- */
.empty-state {
  font-style: italic;
  color: var(--muted);
  text-align: center;
  padding: var(--space-xl) 0;
}

/* --------------------------------------------------------------------------
   Individual Briefing Page
   -------------------------------------------------------------------------- */
article {
  margin-bottom: var(--space-xl);
}

article h1 {
  font-size: 2rem;
  margin-bottom: var(--space-lg);
}

article ul {
  margin-bottom: var(--space-lg);
}

article li {
  margin-bottom: var(--space-sm);
}

/* Source links styling */
article p strong:only-child {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Back Link
   -------------------------------------------------------------------------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: var(--space-lg);
  letter-spacing: 0.05em;
  transition: color 0.15s ease;
}

.back-link::before {
  content: '←';
}

.back-link:hover {
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
  body {
    background: white;
    color: black;
    font-size: 11pt;
  }

  header, footer {
    display: none;
  }

  .archive-section {
    display: none;
  }

  a {
    color: black;
    text-decoration: underline;
  }

  h2 {
    border-bottom-color: black;
  }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  html {
    font-size: 16px;
  }

  body {
    padding: var(--space-md);
  }

  .masthead-title {
    font-size: 1.75rem;
  }

  .featured-title {
    font-size: 1.75rem;
  }

  .featured-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }
}