/* ============================================
   SEO by Role — Design System
   "The Matrix" — Role-based pathways
   Pure CSS, no Tailwind
   ============================================ */

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

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

body {
  font-family: 'Karla', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.7;
  color: #475569;
  background-color: #f8fafc;
}

img { max-width: 100%; height: auto; display: block; }
a { color: #65a30d; text-decoration: none; transition: color 0.2s ease; }
a:hover { color: #84cc16; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  color: #0f172a;
  line-height: 1.25;
  margin-bottom: 0.75em;
}

h1 { font-size: 2.75rem; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 2rem; font-weight: 600; letter-spacing: -0.015em; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }
h5 { font-size: 1.1rem; font-weight: 500; }
h6 { font-size: 1rem; font-weight: 500; }

p { margin-bottom: 1.25em; }

.text-muted { color: #94a3b8; }
.text-secondary { color: #475569; }
.text-primary { color: #0f172a; }

/* --- Layout --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: #f1f5f9;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* --- Role Colors --- */
:root {
  --color-base: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-alt: #f1f5f9;
  --color-accent: #65a30d;
  --color-accent-light: #84cc16;
  --color-secondary: #475569;
  --color-cta: #2563eb;
  --color-cta-hover: #3b82f6;
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;

  /* Role tints */
  --role-executives: #fef3c7;
  --role-executives-border: #f59e0b;
  --role-product-managers: #dbeafe;
  --role-product-managers-border: #3b82f6;
  --role-developers: #d1fae5;
  --role-developers-border: #10b981;
  --role-content-teams: #fce7f3;
  --role-content-teams-border: #ec4899;
  --role-founders: #e0e7ff;
  --role-founders-border: #6366f1;
  --role-marketing-managers: #ccfbf1;
  --role-marketing-managers-border: #14b8a6;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  text-decoration: none;
}

.btn-cta {
  background-color: var(--color-cta);
  color: #ffffff;
}
.btn-cta:hover {
  background-color: var(--color-cta-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-cta);
  border: 2px solid var(--color-cta);
}
.btn-outline:hover {
  background-color: var(--color-cta);
  color: #ffffff;
}

.btn-accent {
  background-color: var(--color-accent);
  color: #ffffff;
}
.btn-accent:hover {
  background-color: var(--color-accent-light);
  color: #ffffff;
}

/* --- Cards --- */
.card {
  background-color: var(--color-surface);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

/* Role cards */
.role-card {
  border-radius: 12px;
  padding: 2rem;
  border: 1px solid var(--color-border);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  display: block;
}

.role-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.role-card[data-role="executives"] { background-color: var(--role-executives); border-left: 4px solid var(--role-executives-border); }
.role-card[data-role="product-managers"] { background-color: var(--role-product-managers); border-left: 4px solid var(--role-product-managers-border); }
.role-card[data-role="developers"] { background-color: var(--role-developers); border-left: 4px solid var(--role-developers-border); }
.role-card[data-role="content-teams"] { background-color: var(--role-content-teams); border-left: 4px solid var(--role-content-teams-border); }
.role-card[data-role="founders"] { background-color: var(--role-founders); border-left: 4px solid var(--role-founders-border); }
.role-card[data-role="marketing-managers"] { background-color: var(--role-marketing-managers); border-left: 4px solid var(--role-marketing-managers-border); }

.role-card .role-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
}

.role-card .role-title {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: 1.15rem;
  color: #0f172a;
  margin-bottom: 0.5rem;
}

.role-card .role-desc {
  font-size: 0.9rem;
  color: #475569;
  line-height: 1.5;
  margin-bottom: 0;
}

/* Article cards */
.article-card {
  background-color: var(--color-surface);
  border-radius: 10px;
  border: 1px solid var(--color-border);
  padding: 1.5rem 1.5rem 1.5rem 2rem;
  border-left: 4px solid var(--color-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  display: block;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
}

.article-card[data-role="executives"] { border-left-color: var(--role-executives-border); }
.article-card[data-role="product-managers"] { border-left-color: var(--role-product-managers-border); }
.article-card[data-role="developers"] { border-left-color: var(--role-developers-border); }
.article-card[data-role="content-teams"] { border-left-color: var(--role-content-teams-border); }
.article-card[data-role="founders"] { border-left-color: var(--role-founders-border); }
.article-card[data-role="marketing-managers"] { border-left-color: var(--role-marketing-managers-border); }

.article-card .article-role-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

.article-card[data-role="executives"] .article-role-tag { background-color: var(--role-executives); color: #92400e; }
.article-card[data-role="product-managers"] .article-role-tag { background-color: var(--role-product-managers); color: #1e40af; }
.article-card[data-role="developers"] .article-role-tag { background-color: var(--role-developers); color: #065f46; }
.article-card[data-role="content-teams"] .article-role-tag { background-color: var(--role-content-teams); color: #9d174d; }
.article-card[data-role="founders"] .article-role-tag { background-color: var(--role-founders); color: #3730a3; }
.article-card[data-role="marketing-managers"] .article-role-tag { background-color: var(--role-marketing-managers); color: #0f766e; }

.article-card .article-title {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: #0f172a;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.article-card .article-excerpt {
  font-size: 0.9rem;
  color: #64748b;
  line-height: 1.55;
  margin-bottom: 0;
}

/* --- Mega Nav --- */
.mega-nav {
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.mega-nav .nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.mega-nav .logo {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: #0f172a;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mega-nav .logo .logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: #475569;
  color: #84cc16;
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 8px;
  letter-spacing: -0.02em;
}

.mega-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.mega-nav .nav-links a {
  color: #475569;
  font-weight: 500;
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s;
}

.mega-nav .nav-links a:hover {
  color: #0f172a;
}

.mega-nav .nav-dropdown {
  position: relative;
}

.mega-nav .nav-dropdown-trigger {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: #475569;
  font-weight: 500;
  font-size: 0.9rem;
  background: none;
  border: none;
  font-family: inherit;
  padding: 0.5rem 0;
}

.mega-nav .nav-dropdown-trigger:hover {
  color: #0f172a;
}

.mega-nav .nav-dropdown-trigger svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}

.mega-nav .nav-dropdown.open .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.mega-nav .dropdown-panel {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: -1rem;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.25rem;
  width: 420px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
  z-index: 100;
}

.mega-nav .nav-dropdown.open .dropdown-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.mega-nav .dropdown-role-link {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color 0.15s;
}

.mega-nav .dropdown-role-link:hover {
  background-color: #f8fafc;
}

.mega-nav .dropdown-role-link .role-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.mega-nav .dropdown-role-link .dropdown-role-name {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: #0f172a;
  display: block;
}

.mega-nav .dropdown-role-link .dropdown-role-sub {
  font-size: 0.75rem;
  color: #94a3b8;
  display: block;
  margin-top: 0.15rem;
}

.mega-nav .nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  background-color: var(--color-cta);
  color: #ffffff !important;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  transition: background-color 0.2s;
}

.mega-nav .nav-cta:hover {
  background-color: var(--color-cta-hover);
  color: #ffffff !important;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #0f172a;
  margin: 5px 0;
  transition: 0.3s;
}

/* --- Hero --- */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero h1 {
  font-size: 3.25rem;
  max-width: 700px;
  margin: 0 auto 1.25rem;
  letter-spacing: -0.03em;
}

.hero .hero-sub {
  font-size: 1.2rem;
  color: #64748b;
  max-width: 560px;
  margin: 0 auto 3rem;
  line-height: 1.65;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 900px;
  margin: 0 auto;
}

/* --- CTA Box --- */
.cta-box {
  background-color: var(--color-surface);
  border: 2px solid #e2e8f0;
  border-radius: 16px;
  padding: 3rem;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.cta-box p {
  color: #64748b;
  margin-bottom: 1.5rem;
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: #0f172a;
  text-align: left;
  line-height: 1.4;
}

.faq-question .faq-icon {
  font-size: 1.25rem;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-left: 1rem;
  transition: transform 0.25s ease;
}

.faq-item.open .faq-question .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding-bottom: 1.25rem;
}

.faq-answer p {
  color: #64748b;
  font-size: 0.95rem;
  line-height: 1.65;
}

/* --- Breadcrumbs --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #94a3b8;
  padding: 1rem 0;
}

.breadcrumb a {
  color: #64748b;
}

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

.breadcrumb .sep {
  color: #cbd5e1;
}

/* --- Article Content --- */
.article-header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2.5rem;
}

.article-header h1 {
  font-size: 2.5rem;
  max-width: 700px;
}

.article-header .article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #94a3b8;
}

.article-content h2 {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #f1f5f9;
}

.article-content h3 {
  margin-top: 2rem;
}

.article-content ul, .article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

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

.article-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 1rem 1.5rem;
  background-color: #f8fafc;
  margin: 1.5rem 0;
  font-style: italic;
  color: #475569;
}

.article-content code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85em;
  background-color: #f1f5f9;
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

.article-content pre {
  background-color: #1e293b;
  color: #e2e8f0;
  padding: 1.5rem;
  border-radius: 10px;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.85rem;
  line-height: 1.6;
}

.article-content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: inherit;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.article-content th {
  text-align: left;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--color-border);
  color: #0f172a;
}

.article-content td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.article-content strong {
  color: #0f172a;
  font-weight: 500;
}

/* --- Footer --- */
.site-footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid #1e293b;
}

.footer-col h4 {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: #e2e8f0;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #94a3b8;
}

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

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

.footer-col ul a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col ul a:hover {
  color: #84cc16;
}

.footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #64748b;
}

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

.footer-bottom .entity-links a {
  color: #64748b;
  font-size: 0.8rem;
}

.footer-bottom .entity-links a:hover {
  color: #84cc16;
}

/* --- Role Landing Pages --- */
.role-hero {
  padding: 4rem 0 3rem;
}

.role-hero .role-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}

.role-hero[data-role="executives"] .role-badge { background-color: var(--role-executives); color: #92400e; }
.role-hero[data-role="product-managers"] .role-badge { background-color: var(--role-product-managers); color: #1e40af; }
.role-hero[data-role="developers"] .role-badge { background-color: var(--role-developers); color: #065f46; }
.role-hero[data-role="content-teams"] .role-badge { background-color: var(--role-content-teams); color: #9d174d; }
.role-hero[data-role="founders"] .role-badge { background-color: var(--role-founders); color: #3730a3; }
.role-hero[data-role="marketing-managers"] .role-badge { background-color: var(--role-marketing-managers); color: #0f766e; }

.role-hero h1 {
  font-size: 2.75rem;
  max-width: 650px;
}

.role-hero .role-hero-sub {
  font-size: 1.15rem;
  color: #64748b;
  max-width: 600px;
  margin-top: 1rem;
  line-height: 1.65;
}

/* Skill level indicators */
.skill-level {
  display: flex;
  gap: 4px;
  align-items: center;
}

.skill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #e2e8f0;
}

.skill-dot.filled {
  background-color: var(--color-accent);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .hero h1 { font-size: 2.25rem; }
  .role-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .section { padding: 3rem 0; }

  .mega-nav .nav-links { display: none; }
  .nav-toggle { display: block; }

  .mega-nav .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    gap: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  }

  .mega-nav .dropdown-panel {
    position: static;
    width: 100%;
    box-shadow: none;
    border: none;
    padding: 0.5rem 0;
  }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-bottom .entity-links { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 480px) {
  .role-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.85rem; }
  .container { padding: 0 1rem; }
}