/* ==========================================================================
   SOCIALISM.ORG / SOLIDARITY ECONOMY PORTAL
   Modernist Editorial Design (Offline-First, Zero External CDNs)
   ========================================================================== */

:root {
  --bg-primary: #0d1013;
  --bg-surface: #161a20;
  --bg-card: #1c222b;
  --bg-card-hover: #242c38;
  --border-subtle: #2a3340;
  --border-prominent: #3d4a5d;
  
  --text-primary: #f2f4f8;
  --text-secondary: #9eaec4;
  --text-muted: #67768b;
  --text-inverse: #0d1013;
  
  --accent-red: #e63946;
  --accent-red-hover: #d62839;
  --accent-red-subtle: rgba(230, 57, 70, 0.15);
  
  --accent-gold: #f4a261;
  --accent-gold-subtle: rgba(244, 162, 97, 0.15);
  
  --accent-emerald: #2a9d8f;
  --accent-emerald-subtle: rgba(42, 157, 143, 0.15);
  
  --accent-cyan: #48cae4;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
  
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.45);
}

[data-theme="light"] {
  --bg-primary: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-card: #f1f3f5;
  --bg-card-hover: #e9ecef;
  --border-subtle: #dee2e6;
  --border-prominent: #ced4da;
  
  --text-primary: #121417;
  --text-secondary: #495057;
  --text-muted: #868e96;
  --text-inverse: #ffffff;
  
  --accent-red: #c92a2a;
  --accent-red-hover: #b02525;
  --accent-red-subtle: rgba(201, 42, 42, 0.1);
  
  --accent-gold: #d97706;
  --accent-gold-subtle: rgba(217, 119, 6, 0.1);
  
  --accent-emerald: #0f766e;
  --accent-emerald-subtle: rgba(15, 118, 110, 0.1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-display);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  background-color: rgba(22, 26, 32, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 2rem;
  height: 2rem;
  background: var(--accent-red);
  color: white;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

.brand-badge {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  background: var(--accent-red-subtle);
  color: var(--accent-red);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--accent-red);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text-primary);
}

.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s;
}

.theme-toggle:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 50% 0%, var(--accent-red-subtle) 0%, transparent 65%);
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-prominent);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: var(--accent-red);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
}

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

.btn-primary:hover {
  background: var(--accent-red-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(230, 57, 70, 0.4);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-prominent);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-secondary);
  transform: translateY(-1px);
}

/* Stats Banner */
.stats-banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 3.5rem;
}

.stat-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: left;
}

.stat-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.stat-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Sections */
.section {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-emerald);
  background: var(--accent-emerald-subtle);
  border: 1px solid var(--accent-emerald);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 680px;
  font-size: 1.05rem;
}

/* Manifesto Layout */
.manifesto-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-prominent);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 880px;
  margin: 0 auto;
  position: relative;
}

.manifesto-lead {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--accent-red);
  padding-left: 1.25rem;
}

.manifesto-body p {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.manifesto-quote {
  background: var(--bg-card);
  border-left: 3px solid var(--accent-gold);
  padding: 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-primary);
  margin: 1.75rem 0;
}

/* Offerings Catalog */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-prominent);
}

.filter-btn.active {
  background: var(--accent-red);
  color: white;
  border-color: var(--accent-red);
}

.offerings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.75rem;
}

.offering-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.offering-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-prominent);
  box-shadow: var(--shadow-md);
}

.offering-card.featured {
  border-color: var(--accent-red);
  background: linear-gradient(180deg, var(--bg-surface) 0%, rgba(230, 57, 70, 0.04) 100%);
  grid-column: 1 / -1;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.card-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.card-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.tag-flagship {
  background: var(--accent-red-subtle);
  color: var(--accent-red);
  border-color: var(--accent-red);
  font-weight: 700;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.card-feature-item {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-feature-item::before {
  content: "✓";
  color: var(--accent-emerald);
  font-weight: bold;
}

.card-action {
  margin-top: auto;
}

.featured-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: center;
}

@media (max-width: 900px) {
  .featured-layout {
    grid-template-columns: 1fr;
  }
}

/* Simulators */
.sim-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.sim-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sim-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-emerald);
  background: var(--accent-emerald-subtle);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
}

.sim-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.trade-actors {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.actor-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  text-align: center;
}

.actor-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.actor-balance {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.balance-pos { color: var(--accent-emerald); }
.balance-neg { color: var(--accent-gold); }

.trade-arrow {
  color: var(--text-muted);
  font-size: 1.25rem;
  font-weight: bold;
}

.sim-controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.sim-slider-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.sim-slider {
  width: 100%;
  accent-color: var(--accent-red);
}

.sim-actions {
  display: flex;
  gap: 0.5rem;
}

.sim-sum-box {
  background: var(--bg-primary);
  border: 1px dashed var(--border-prominent);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.sim-sum-highlight {
  color: var(--accent-cyan);
  font-weight: bold;
}

/* Comparison Table */
.comp-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  margin-top: 2rem;
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.comp-table th, .comp-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.comp-table th {
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.comp-table tr:last-child td {
  border-bottom: none;
}

.comp-table .highlight-col {
  background: rgba(230, 57, 70, 0.05);
  font-weight: 600;
  color: var(--text-primary);
}

/* CTA & Footer */
.cta-box {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
  border: 1px solid var(--border-prominent);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 0 2rem;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.footer-text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
}

.footer-link:hover {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .offerings-grid {
    grid-template-columns: 1fr;
  }
  .trade-actors {
    grid-template-columns: 1fr;
  }
  .trade-arrow {
    transform: rotate(90deg);
    margin: 0.25rem 0;
  }
}