/* ==========================================================================
   3conomics — Prototype Stylesheet
   Dark-mode Web3 aesthetic. Built for the 3conomics.com prototype.
   ========================================================================== */

:root {
  /* Colors */
  --bg-0: #0a0e1a;
  --bg-1: #0f1629;
  --bg-2: #151d36;
  --bg-3: #1e2846;
  --border: rgba(148, 163, 255, 0.12);
  --border-strong: rgba(148, 163, 255, 0.22);

  --text-0: #f8fafc;
  --text-1: #cbd5e1;
  --text-2: #94a3b8;
  --text-3: #64748b;

  --primary: #22d3ee;      /* electric cyan */
  --primary-dim: #0891b2;
  --accent: #a855f7;       /* magenta/purple for "3" */
  --accent-dim: #7c3aed;
  --success: #10b981;
  --warning: #f59e0b;

  --gradient-brand: linear-gradient(135deg, #22d3ee 0%, #a855f7 100%);
  --gradient-hero: radial-gradient(ellipse at top, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
                   radial-gradient(ellipse at bottom right, rgba(34, 211, 238, 0.1) 0%, transparent 50%);
  --gradient-card: linear-gradient(145deg, rgba(34, 211, 238, 0.04) 0%, rgba(168, 85, 247, 0.04) 100%);

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Layout */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --container: 1200px;
  --nav-h: 72px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --glow-primary: 0 0 32px rgba(34, 211, 238, 0.35);
  --glow-accent: 0 0 32px rgba(168, 85, 247, 0.35);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
  z-index: 0;
}

main, nav, footer { position: relative; z-index: 1; }

img { max-width: 100%; display: block; }

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--accent); }

h1, h2, h3, h4 {
  color: var(--text-0);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { color: var(--text-1); }

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-2);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--primary);
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-sm { padding: 3rem 0; }

.section-title {
  text-align: center;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-2);
  font-size: 1.125rem;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  background: rgba(34, 211, 238, 0.08);
  padding: 0.4rem 0.9rem;
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 999px;
  margin-bottom: 1rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(10, 14, 26, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--text-0);
  letter-spacing: -0.02em;
}

.logo:hover { color: var(--text-0); }

.logo-mark {
  font-size: 1.75rem;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 900;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  display: inline-block;
  padding: 0.5rem 0.85rem;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-0);
  background: rgba(255, 255, 255, 0.05);
}

.nav-cta {
  padding: 0.55rem 1.15rem !important;
  background: var(--gradient-brand) !important;
  color: var(--bg-0) !important;
  font-weight: 600 !important;
  border-radius: var(--radius-sm) !important;
}

.nav-cta:hover {
  color: var(--bg-0) !important;
  transform: translateY(-1px);
  box-shadow: var(--glow-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-0);
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle svg { width: 24px; height: 24px; }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero h1 .gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--text-1);
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-brand);
  color: var(--bg-0);
}

.btn-primary:hover {
  color: var(--bg-0);
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-0);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-0);
  border-color: var(--primary);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ==========================================================================
   Cards & Grid
   ========================================================================== */

.grid {
  display: grid;
  gap: 1.5rem;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card:hover::before { opacity: 1; }

.card-icon {
  display: inline-flex;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(34, 211, 238, 0.1);
  color: var(--primary);
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-weight: 700;
}

.card-icon-accent {
  background: rgba(168, 85, 247, 0.1);
  color: var(--accent);
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-2);
  font-size: 0.95rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}

.card-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.card-link:hover::after { transform: translateX(4px); }

/* ==========================================================================
   Content pages
   ========================================================================== */

.page-header {
  padding: 4rem 0 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header .lead {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.15rem;
  color: var(--text-2);
}

.content-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  align-items: start;
}

.toc {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
  padding: 1.5rem;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.toc-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-3);
  margin-bottom: 1rem;
}

.toc ul {
  list-style: none;
}

.toc li { margin-bottom: 0.5rem; }

.toc a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-2);
  padding: 0.35rem 0.75rem;
  border-left: 2px solid transparent;
  border-radius: 0;
}

.toc a:hover,
.toc a.active {
  color: var(--text-0);
  border-left-color: var(--primary);
  background: rgba(34, 211, 238, 0.05);
}

.content article + article {
  margin-top: 4rem;
}

.content h2 {
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.content h3 {
  margin: 2rem 0 1rem;
  color: var(--text-0);
}

.content h4 {
  margin: 1.5rem 0 0.5rem;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.content p {
  margin-bottom: 1rem;
}

.content ul, .content ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text-1);
}

.content li {
  margin-bottom: 0.5rem;
}

.content li strong {
  color: var(--text-0);
}

.feature-list {
  list-style: none !important;
  margin-left: 0 !important;
  display: grid;
  gap: 0.75rem;
}

.feature-list li {
  padding: 1rem 1.25rem;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
}

.feature-list li strong {
  display: block;
  color: var(--text-0);
  margin-bottom: 0.25rem;
}

/* Info / callout boxes */
.callout {
  padding: 1.25rem 1.5rem;
  background: rgba(34, 211, 238, 0.06);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  margin: 1.5rem 0;
}

.callout-warning {
  background: rgba(245, 158, 11, 0.06);
  border-color: rgba(245, 158, 11, 0.25);
  border-left-color: var(--warning);
}

.callout strong {
  color: var(--text-0);
  display: block;
  margin-bottom: 0.35rem;
}

.callout p { margin: 0; color: var(--text-1); font-size: 0.95rem; }

/* ==========================================================================
   Case studies / comparison
   ========================================================================== */

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0 2rem;
}

.compare-col {
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-1);
}

.compare-col.web2 {
  border-left: 3px solid var(--text-3);
}

.compare-col.web3 {
  border-left: 3px solid var(--primary);
  background: linear-gradient(145deg, rgba(34, 211, 238, 0.03) 0%, rgba(168, 85, 247, 0.03) 100%);
}

.compare-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.compare-tag.web2 {
  background: rgba(100, 116, 139, 0.15);
  color: var(--text-2);
}

.compare-tag.web3 {
  background: rgba(34, 211, 238, 0.12);
  color: var(--primary);
}

.compare-col h4 {
  color: var(--text-0);
  margin-bottom: 0.75rem;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  text-transform: none;
  letter-spacing: normal;
}

.compare-col p {
  font-size: 0.92rem;
  color: var(--text-2);
}

/* ==========================================================================
   Glossary
   ========================================================================== */

.glossary-search {
  max-width: 500px;
  margin: 0 auto 3rem;
  display: flex;
  align-items: center;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
}

.glossary-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-0);
  font-family: inherit;
  font-size: 1rem;
  padding: 0.5rem;
}

.glossary-search input::placeholder { color: var(--text-3); }

.glossary-list {
  display: grid;
  gap: 1rem;
}

.glossary-item {
  padding: 1.5rem;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.glossary-item:hover {
  border-color: var(--border-strong);
  transform: translateX(4px);
}

.glossary-term {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-mono);
  margin-bottom: 0.35rem;
}

.glossary-def {
  color: var(--text-1);
  font-size: 0.95rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  margin-top: 5rem;
  padding: 4rem 0 2rem;
  background: var(--bg-1);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-2);
  margin-top: 1rem;
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 1rem;
}

.footer-col ul { list-style: none; }

.footer-col li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: var(--text-2);
  font-size: 0.9rem;
}

.footer-col a:hover { color: var(--primary); }

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-3);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 960px) {
  .content-layout {
    grid-template-columns: 1fr;
  }
  .toc {
    position: static;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    background: var(--bg-1);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 0;
    transform: translateY(-150%);
    transition: transform 0.3s ease;
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .nav-links a { padding: 0.85rem 1rem; }
  .nav-toggle { display: block; }

  .compare {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .section { padding: 3rem 0; }
  .hero { padding: 3rem 0 2rem; }
}

/* ==========================================================================
   Newsletter: signup forms, lead magnets, landing page, exit-intent modal
   ========================================================================== */

/* Base form (reused across all contexts) */
.newsletter-form {
  display: flex;
  gap: 0.5rem;
  max-width: 480px;
  width: 100%;
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 0.85rem 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s ease;
}

.newsletter-form input[type="email"]::placeholder { color: var(--text-3); }

.newsletter-form input[type="email"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}

.newsletter-form button {
  padding: 0.85rem 1.5rem;
  background: var(--gradient-brand);
  color: var(--bg-0);
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.newsletter-form button:hover {
  transform: translateY(-1px);
  box-shadow: var(--glow-primary);
}

.form-note {
  display: block;
  font-size: 0.8rem;
  color: var(--text-3);
  margin-top: 0.65rem;
  text-align: center;
}

.newsletter-success {
  text-align: center;
  color: var(--primary);
  font-weight: 600;
  padding: 1.25rem;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: var(--radius-sm);
  max-width: 480px;
  width: 100%;
}

/* Compact footer signup row */
.newsletter-footer {
  padding: 2.5rem 0;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.newsletter-footer .eyebrow {
  margin-bottom: 1rem;
}

.newsletter-footer h3 {
  margin-bottom: 0.6rem;
  font-size: 1.5rem;
}

.newsletter-footer p {
  color: var(--text-2);
  margin: 0 auto 1.5rem;
  max-width: 560px;
}

.newsletter-footer .newsletter-form {
  margin: 0 auto;
}

/* Inline lead-magnet card (mid-content on article pages) */
.lead-magnet {
  margin: 3rem 0;
  padding: 2rem;
  background: var(--gradient-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.lead-magnet::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
}

.lead-magnet-icon {
  display: inline-flex;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(168, 85, 247, 0.12);
  color: var(--accent);
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-family: var(--font-mono);
  font-weight: 700;
  margin-bottom: 1rem;
}

.lead-magnet-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: rgba(168, 85, 247, 0.1);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.lead-magnet h3 {
  margin-bottom: 0.5rem;
}

.lead-magnet-desc {
  color: var(--text-2);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.lead-magnet .form-note {
  text-align: left;
}

/* Exit-intent modal */
.exit-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.exit-modal.open {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.exit-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.exit-modal-content {
  position: relative;
  max-width: 520px;
  width: 100%;
  padding: 2.5rem;
  background: var(--bg-1);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.4s ease;
}

.exit-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  color: var(--text-3);
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.exit-modal-close:hover {
  color: var(--text-0);
  background: rgba(255, 255, 255, 0.06);
}

.exit-modal-content .eyebrow {
  margin-bottom: 0.85rem;
}

.exit-modal-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.exit-modal-content p {
  color: var(--text-2);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Newsletter landing page */
.newsletter-hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.newsletter-hero h1 {
  margin-bottom: 1.25rem;
}

.newsletter-hero h1 .gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.newsletter-hero .lead {
  font-size: 1.2rem;
  color: var(--text-1);
  max-width: 620px;
  margin: 0 auto 2.5rem;
}

.newsletter-hero .newsletter-form {
  margin: 0 auto 0.25rem;
}

.format-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}

.format-step {
  padding: 1.5rem;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.format-step:hover { border-color: var(--border-strong); }

.format-step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(34, 211, 238, 0.1);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.format-step h4 {
  color: var(--text-0);
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.format-step p {
  font-size: 0.9rem;
  color: var(--text-2);
  margin: 0;
}

.issue-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.issue-preview {
  padding: 1.75rem;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.issue-preview:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.issue-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-3);
  margin-bottom: 0.5rem;
}

.issue-preview h4 {
  color: var(--text-0);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.issue-preview p {
  color: var(--text-2);
  font-size: 0.9rem;
  margin: 0;
}

.issue-preview-magnet {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--primary);
  font-family: var(--font-mono);
}

/* FAQ */
.faq {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child { border-bottom: none; }

.faq-item h4 {
  color: var(--text-0);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.faq-item p {
  color: var(--text-2);
  font-size: 0.95rem;
  margin: 0;
}

@media (max-width: 720px) {
  .newsletter-form { flex-direction: column; }
  .newsletter-form button { width: 100%; }
  .lead-magnet { padding: 1.5rem; }
  .exit-modal-content { padding: 2rem; }
}

/* Netlify honeypot — DOM-present, visually hidden from humans */
.netlify-honeypot {
  position: absolute !important;
  left: -9999px !important;
  top: auto !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.newsletter-error {
  display: block;
  margin-top: 0.65rem;
  color: #f87171;
  font-size: 0.85rem;
  text-align: center;
}

.newsletter-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}