:root {
  --bg-base: #f5f7fa;
  --bg-surface: #ffffff;
  --text-primary: #0e1726;
  --text-secondary: #4a5568;
  --accent-news: #0a66c2;
  --accent-market-up: #0f9d58;
  --accent-market-down: #d93025;
  --warning: #f59e0b;
  --divider: #e2e8f0;
  --focus: #2563eb;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 48px;
  --space-10: 64px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-pill: 999px;

  --shadow-rest: 0 2px 10px rgba(2, 6, 23, 0.06);
  --shadow-hover: 0 8px 24px rgba(2, 6, 23, 0.12);

  --container: min(1280px, calc(100% - 2rem));
  --content: min(740px, 100%);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text-primary);
  background:
    radial-gradient(circle at 10% 20%, #d9ebff 0, transparent 30%),
    radial-gradient(circle at 90% 10%, #ffe5da 0, transparent 32%),
    linear-gradient(180deg, #fdfefe, var(--bg-base) 34%, #eef3f8);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.top-strip {
  border-bottom: 1px solid var(--divider);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
}

.top-strip .container {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-2) 0;
  font-size: 0.84rem;
  color: var(--text-secondary);
  overflow-x: auto;
}

.market-ticker {
  display: flex;
  gap: var(--space-4);
  white-space: nowrap;
}

.up {
  color: var(--accent-market-up);
}

.down {
  color: var(--accent-market-down);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--divider);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
}

.site-header .container {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
  min-height: 76px;
}

.logo {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.65rem;
  letter-spacing: 0.03em;
}

.logo-mark {
  color: var(--accent-news);
}

.main-nav {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  font-weight: 500;
}

.main-nav a {
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-3);
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  background: #ebf3ff;
  color: #16457a;
}

.header-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
}

.btn,
.chip {
  border: 1px solid var(--divider);
  border-radius: var(--radius-pill);
  background: var(--bg-surface);
  padding: 10px 14px;
  font: inherit;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #0d5fc2, #2084d8);
  color: #fff;
  border: none;
}

.breaking {
  margin: var(--space-6) auto;
}

.breaking .container {
  background: linear-gradient(120deg, #0e1726, #1f2f4c);
  color: #e9eef7;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.badge {
  border-radius: var(--radius-pill);
  padding: 5px 10px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.badge-warning {
  background: #ffcf7f;
  color: #2d1c00;
}

.badge-live {
  background: #ffd9d6;
  color: #6b0a02;
}

.hero {
  margin-bottom: var(--space-8);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-6);
}

.card {
  background: var(--bg-surface);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-rest);
  overflow: hidden;
  transition: transform 160ms ease-out, box-shadow 160ms ease-out;
}

.card:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: var(--shadow-hover);
}

.card-body {
  padding: var(--space-6);
}

.eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-news);
  font-weight: 700;
}

.headline {
  font-family: "DM Serif Display", Georgia, serif;
  line-height: 1.2;
  margin: var(--space-2) 0 var(--space-4);
}

.headline-xl {
  font-size: clamp(1.8rem, 2.8vw, 3rem);
}

.headline-lg {
  font-size: clamp(1.35rem, 2.1vw, 2rem);
}

.meta {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.hero-visual,
.card-visual {
  min-height: 240px;
  background:
    linear-gradient(150deg, rgba(10, 102, 194, 0.85), rgba(12, 33, 66, 0.65)),
    radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.28), transparent 40%),
    radial-gradient(circle at 80% 60%, rgba(255, 200, 127, 0.36), transparent 38%);
}

.layout-2col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.story-list {
  display: grid;
  gap: var(--space-4);
}

.story-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-4);
  padding: var(--space-4);
}

.story-thumb {
  min-height: 84px;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(140deg, #0f3d73, #1e78d8),
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.25), transparent 30%);
}

.sidebar-stack {
  display: grid;
  gap: var(--space-4);
}

.market-card .row,
.feed-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--divider);
}

.market-card .row:last-child,
.feed-row:last-child {
  border-bottom: none;
}

.sparkline {
  height: 42px;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(15, 157, 88, 0.2), rgba(15, 157, 88, 0.01)),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 9px,
      rgba(14, 23, 38, 0.06) 9px,
      rgba(14, 23, 38, 0.06) 10px
    );
}

.section {
  margin-bottom: var(--space-9);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.section-title h2 {
  margin: 0;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(1.4rem, 2vw, 2.2rem);
}

.chip-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.card-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.learning-widget {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(226, 235, 247, 0.55));
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-md);
  padding: var(--space-7);
}

.learning-intro {
  margin: 0 0 var(--space-6);
  color: var(--text-secondary);
  max-width: 70ch;
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.learning-card {
  height: 100%;
}

.learning-card .card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.learning-points {
  margin: 0;
  padding-left: var(--space-5);
  color: var(--text-secondary);
  display: grid;
  gap: var(--space-2);
  flex: 1;
}

.learning-card .btn {
  align-self: flex-start;
}

.newsletter {
  background:
    linear-gradient(130deg, #0d284d, #0d5fc2),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.25), transparent 45%);
  color: #fff;
}

.newsletter .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-7);
  padding: var(--space-8) 0;
}

.newsletter h3 {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(1.4rem, 2vw, 2.4rem);
  margin: 0 0 var(--space-2);
}

.newsletter-form {
  display: flex;
  gap: var(--space-2);
  width: min(520px, 100%);
}

.newsletter-form input {
  flex: 1;
  border-radius: var(--radius-pill);
  border: none;
  padding: 12px 16px;
  font: inherit;
}

.site-footer {
  background: #0e1726;
  color: #c5d0e1;
  padding: var(--space-9) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6);
}

.footer-grid h4 {
  color: #f5f7fa;
  margin-top: 0;
}

.footer-grid a {
  display: block;
  margin-bottom: 8px;
  color: #c5d0e1;
}

.footer-bottom {
  border-top: 1px solid rgba(197, 208, 225, 0.2);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  font-size: 0.88rem;
}

.page-hero {
  margin: var(--space-7) 0;
}

.page-hero h1 {
  margin: 0 0 var(--space-3);
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(1.8rem, 3vw, 3.2rem);
}

.world-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-6);
}

.article-layout {
  display: grid;
  grid-template-columns: 64px minmax(0, var(--content)) 300px;
  justify-content: center;
  gap: var(--space-6);
}

.share-rail {
  position: sticky;
  top: 92px;
  display: grid;
  gap: var(--space-2);
  align-content: start;
}

.share-rail button {
  border: 1px solid var(--divider);
  background: white;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  cursor: pointer;
}

.article-content {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--divider);
  box-shadow: var(--shadow-rest);
  padding: var(--space-7);
}

.article-content p {
  margin: 0 0 var(--space-5);
  font-size: 1.05rem;
}

.pull-quote {
  margin: var(--space-7) 0;
  padding-left: var(--space-6);
  border-left: 4px solid var(--accent-news);
  font-size: 1.3rem;
  font-family: "DM Serif Display", Georgia, serif;
}

.related-column {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

.progress-bar {
  position: sticky;
  top: 0;
  width: 100%;
  height: 4px;
  background: #dde5ef;
  z-index: 100;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #0a66c2, #2f9af6);
}

.focusable:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.mobile-bottom-nav {
  display: none;
}

@media (max-width: 1100px) {
  .site-header .container {
    grid-template-columns: 1fr;
    padding: var(--space-3) 0;
  }

  .main-nav,
  .header-actions {
    justify-content: flex-start;
  }

  .hero-grid,
  .layout-2col,
  .world-layout,
  .article-layout,
  .card-row,
  .learning-grid,
  .footer-grid,
  .newsletter .container {
    grid-template-columns: 1fr;
  }

  .article-layout {
    max-width: 760px;
    margin: 0 auto;
  }

  .share-rail {
    position: static;
    grid-auto-flow: column;
  }
}

@media (max-width: 760px) {
  :root {
    --container: min(1280px, calc(100% - 1rem));
  }

  .main-nav {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: var(--space-1);
  }

  .hero-grid,
  .story-grid,
  .card-row,
  .newsletter-form {
    grid-template-columns: 1fr;
  }

  .story-item {
    grid-template-columns: 1fr;
  }

  .mobile-bottom-nav {
    position: sticky;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-1);
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--divider);
    padding: var(--space-2);
    z-index: 90;
  }

  .mobile-bottom-nav a {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
  }
}