/* ================================================
   Global Market Updates — Main Stylesheet
   Data-driven, authoritative, financial journalism
   Charcoal + Emerald Green color scheme
   ================================================ */

:root {
  --color-primary: #1c1c2e;
  --color-primary-dark: #111122;
  --color-accent: #2e8b57;
  --color-accent-light: #3aa86b;
  --color-accent-dark: #236b43;
  --color-text: #1a1a1a;
  --color-text-muted: #5a5a5a;
  --color-text-light: #888;
  --color-border: #d4d4d4;
  --color-border-light: #ebebeb;
  --color-bg: #f8f8f6;
  --color-bg-card: #ffffff;
  --color-bg-dark: #1c1c2e;
  --color-bg-masthead: #111122;
  --font-serif: 'Georgia', 'Times New Roman', Times, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
  --radius: 3px;
  --shadow: 0 1px 4px rgba(0,0,0,0.08), 0 2px 12px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.12), 0 2px 6px rgba(0,0,0,0.08);
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.6; -webkit-font-smoothing: antialiased; }

/* ---- Skip Link ---- */
.skip-link { position: absolute; top: -100%; left: 16px; background: var(--color-accent); color: #fff; padding: 8px 16px; border-radius: var(--radius); font-weight: 600; z-index: 9999; text-decoration: none; }
.skip-link:focus { top: 8px; }

/* ---- Container ---- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ---- Header ---- */
.site-header { background: var(--color-bg-masthead); border-bottom: 3px solid var(--color-accent); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 0; min-height: 64px; }
.site-brand { display: flex; align-items: center; flex-shrink: 0; }
.site-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.site-logo img { height: 36px; width: auto; }
.brand-text { display: flex; flex-direction: column; }
.logo-text { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 700; color: #fff; letter-spacing: 0.02em; line-height: 1.2; }
.logo-tagline { font-size: 0.68rem; color: var(--color-accent-light); letter-spacing: 0.06em; text-transform: uppercase; line-height: 1; margin-top: 2px; }

/* ---- Nav ---- */
.site-nav { display: flex; align-items: center; }
.nav-links { display: flex; list-style: none; gap: 4px; }
.nav-links a { color: rgba(255,255,255,0.82); text-decoration: none; font-size: 0.82rem; font-weight: 500; padding: 6px 10px; border-radius: var(--radius); transition: color var(--transition), background var(--transition); letter-spacing: 0.02em; white-space: nowrap; }
.nav-links a:hover { color: #fff; background: rgba(46,139,87,0.3); }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; color: #fff; }

/* ---- Nav Container (article template) ---- */
.nav-container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 64px; }

/* ---- Hero/Masthead Banner ---- */
.site-masthead { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%); border-bottom: 1px solid rgba(46,139,87,0.4); padding: 32px 0 24px; text-align: center; }
.masthead-label { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent-light); margin-bottom: 8px; }
.masthead-title { font-family: var(--font-serif); font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; color: #fff; letter-spacing: 0.01em; line-height: 1.15; }
.masthead-sub { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 8px; letter-spacing: 0.04em; }
.masthead-divider { width: 60px; height: 2px; background: var(--color-accent); margin: 16px auto 0; }

/* ---- Featured Section ---- */
.featured-section { padding: 40px 0 32px; }
.featured-grid { display: grid; grid-template-columns: 1fr 340px; gap: 24px; }
.featured-card { background: var(--color-bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--color-border-light); }
.featured-card--main { display: flex; flex-direction: column; }
.featured-image img { width: 100%; height: 320px; object-fit: cover; display: block; }
.featured-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.featured-body .card-category { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 10px; display: block; }
.featured-body h2 { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 700; line-height: 1.3; color: var(--color-primary); margin-bottom: 12px; }
.featured-body h2 a { text-decoration: none; color: inherit; }
.featured-body h2 a:hover { color: var(--color-accent-dark); }
.featured-body .card-excerpt { color: var(--color-text-muted); font-size: 0.92rem; line-height: 1.65; flex: 1; }
.card-meta { font-size: 0.75rem; color: var(--color-text-light); margin-top: 16px; display: flex; gap: 8px; align-items: center; }
.card-meta .sep { color: var(--color-accent); }

/* ---- Sidebar Cards ---- */
.featured-sidebar { display: flex; flex-direction: column; gap: 16px; }
.sidebar-card { background: var(--color-bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--color-border-light); display: flex; gap: 0; }
.sidebar-image img { width: 110px; height: 100%; object-fit: cover; flex-shrink: 0; display: block; }
.sidebar-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.sidebar-body .card-category { font-size: 0.63rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }
.sidebar-body h3 { font-family: var(--font-serif); font-size: 0.88rem; font-weight: 700; line-height: 1.35; color: var(--color-primary); }
.sidebar-body h3 a { text-decoration: none; color: inherit; }
.sidebar-body h3 a:hover { color: var(--color-accent-dark); }
.sidebar-body .card-meta { font-size: 0.7rem; color: var(--color-text-light); margin-top: 4px; }

/* ---- Section Headers ---- */
.section-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; padding-bottom: 12px; border-bottom: 2px solid var(--color-primary); }
.section-header h2 { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 700; color: var(--color-primary); letter-spacing: 0.01em; }
.section-label { font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); font-weight: 700; }

/* ---- Articles Grid ---- */
.articles-section { padding: 32px 0 48px; }
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card { background: var(--color-bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--color-border-light); transition: box-shadow var(--transition), transform var(--transition); display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.article-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.card-image img { width: 100%; height: 180px; object-fit: cover; display: block; }
.card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.card-category { font-size: 0.63rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); display: block; margin-bottom: 6px; }
.card-body h3 { font-family: var(--font-serif); font-size: 1rem; font-weight: 700; line-height: 1.35; color: var(--color-primary); margin-bottom: 8px; }
.card-excerpt { font-size: 0.83rem; color: var(--color-text-muted); line-height: 1.55; flex: 1; }
.empty-grid { text-align: center; padding: 48px 24px; color: var(--color-text-muted); font-size: 0.95rem; border: 2px dashed var(--color-border); border-radius: var(--radius); }
.empty-grid p { margin-bottom: 8px; }
.empty-grid strong { color: var(--color-primary); }

/* ---- Category Pages ---- */
.category-header { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%); border-bottom: 3px solid var(--color-accent); padding: 48px 0 40px; }
.category-header .category-label { font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent-light); margin-bottom: 8px; display: block; }
.category-header h1 { font-family: var(--font-serif); font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 700; color: #fff; line-height: 1.2; }
.category-header p { color: rgba(255,255,255,0.65); font-size: 0.95rem; margin-top: 10px; max-width: 600px; }
.category-content { padding: 40px 0 56px; }

/* ---- Article Pages ---- */
.article-header { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%); border-bottom: 3px solid var(--color-accent); padding: 40px 0 36px; }
.article-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 16px; font-size: 0.78rem; color: rgba(255,255,255,0.6); }
.article-meta .sep { color: var(--color-accent); }
.article-meta .category a { color: var(--color-accent-light); text-decoration: none; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.72rem; }
.article-meta .category a:hover { color: #fff; }
.article-header h1 { font-family: var(--font-serif); font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; color: #fff; line-height: 1.25; max-width: 820px; }
.article-subtitle { font-size: 1.1rem; color: rgba(255,255,255,0.65); margin-top: 10px; line-height: 1.5; max-width: 720px; }
.author-info { margin-top: 14px; font-size: 0.82rem; color: rgba(255,255,255,0.6); }
.author-info .author { font-weight: 500; }
.hero-image { background: #000; }
.hero-image img { width: 100%; max-height: 500px; object-fit: cover; display: block; }
.article-content { padding: 36px 0; }
.article-content .container { max-width: 760px; }
.article-body { padding: 36px 0; max-width: 760px; margin: 0 auto; }
.article-body p { font-size: 1.02rem; line-height: 1.78; color: #222; margin-bottom: 1.4em; }
.article-body h2 { font-family: var(--font-serif); font-size: 1.35rem; font-weight: 700; color: var(--color-primary); margin: 2em 0 0.7em; padding-bottom: 8px; border-bottom: 1px solid var(--color-border-light); }
.article-body h3 { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 700; color: var(--color-primary); margin: 1.5em 0 0.5em; }
.article-body a { color: var(--color-accent); text-decoration: underline; }
.article-body a:hover { color: var(--color-primary); }
.article-body strong { color: #111; font-weight: 700; }
.article-body ul, .article-body ol { margin: 0.5em 0 1.2em 1.4em; }
.article-body li { margin-bottom: 0.4em; font-size: 1.02rem; line-height: 1.7; }
blockquote { border-left: 4px solid var(--color-accent); margin: 1.5em 0; padding: 16px 24px; background: rgba(46,139,87,0.04); font-style: italic; color: #333; }
blockquote p { margin-bottom: 0.5em; }
blockquote cite, blockquote footer { font-style: normal; font-size: 0.85rem; color: var(--color-text-muted); display: block; margin-top: 8px; }

/* ---- Related Coverage (cross-site links) ---- */
.related-coverage { background: #f0f5f2; border: 1px solid #a0c4b0; border-radius: var(--radius); padding: 20px 24px; margin: 24px 0; }
.related-coverage h3 { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent-dark); margin-bottom: 12px; }
.related-coverage ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.related-coverage li a { color: var(--color-primary); text-decoration: none; font-size: 0.88rem; font-weight: 500; border-bottom: 1px solid transparent; transition: border-color var(--transition), color var(--transition); }
.related-coverage li a:hover { color: var(--color-accent); border-bottom-color: var(--color-accent); }

/* ---- Related Articles ---- */
.related-articles { padding: 40px 0 48px; border-top: 1px solid var(--color-border); margin-top: 24px; }
.related-articles h3 { font-family: var(--font-serif); font-size: 1.2rem; color: var(--color-primary); margin-bottom: 24px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ---- Footer ---- */
.site-footer { background: var(--color-bg-masthead); border-top: 3px solid var(--color-accent); padding: 48px 0 24px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-logo { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 700; color: #fff; display: block; margin-bottom: 10px; }
.footer-desc { font-size: 0.82rem; color: rgba(255,255,255,0.45); line-height: 1.6; max-width: 280px; }
.footer-nav-heading { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent-light); display: block; margin-bottom: 14px; }
.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-nav a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 0.82rem; transition: color var(--transition); }
.footer-nav a:hover { color: var(--color-accent-light); }
.footer-bottom { padding-top: 20px; }
.footer-bottom p { font-size: 0.75rem; color: rgba(255,255,255,0.3); }
.footer-container { max-width: var(--max-width); margin: 0 auto; padding: 32px 20px; text-align: center; }
.footer-container p { font-size: 0.82rem; color: rgba(255,255,255,0.5); margin-bottom: 4px; }
.footer-tagline { font-size: 0.75rem; color: rgba(255,255,255,0.3); letter-spacing: 0.04em; }

/* ---- Fade-in ---- */
.fade-in { animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .featured-grid { grid-template-columns: 1fr; }
  .articles-grid, .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .featured-image img { height: 240px; }
}
@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--color-bg-masthead); padding: 12px 20px; border-bottom: 2px solid var(--color-accent); }
  .nav-links.open { display: flex; }
  .menu-toggle { display: block; }
  .articles-grid, .related-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .sidebar-card { flex-direction: column; }
  .sidebar-image img { width: 100%; height: 140px; }
  .article-header h1 { font-size: 1.35rem; }
}