/* ===================================
   PocketSignals Pro · smart-pocket.online
   Shared stylesheet for article pages
   =================================== */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, ul, ol { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* --- Variables --- */
:root {
  --bg-gradient: linear-gradient(180deg, #0A0E1A 0%, #131A2E 100%);
  --bg-base: #0A0E1A;
  --bg-card: #0F172A;
  --bg-card-hover: #1E293B;
  --border: #1E293B;
  --border-light: #334155;

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  --blue: #3B82F6;
  --cyan: #06B6D4;
  --green: #10B981;
  --green-light: #34D399;
  --red: #EF4444;
  --red-light: #F87171;
  --yellow: #F59E0B;
  --purple: #8B5CF6;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --container: 1180px;
  --article-width: 780px;
}

/* --- Base --- */
body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-gradient);
  background-attachment: fixed;
  min-height: 100vh;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Decorative atmosphere */
body::before {
  content: '';
  position: fixed;
  top: 10%;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: '';
  position: fixed;
  bottom: 10%;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* --- Header / Nav --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}
.logo-text { color: var(--text-primary); }
.logo-text span { color: var(--cyan); }

.nav-menu {
  display: flex;
  gap: 2rem;
  font-size: 0.94rem;
  font-weight: 500;
}
.nav-menu a {
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}
.nav-menu a:hover { color: var(--text-primary); }
.nav-menu a.active {
  color: var(--text-primary);
}
.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  border-radius: 2px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.5);
}

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

/* --- Main layout --- */
main {
  position: relative;
  z-index: 1;
}

.article-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* --- Breadcrumbs --- */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.breadcrumbs a {
  color: var(--text-secondary);
  transition: color 0.2s;
}
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs .sep { color: var(--text-muted); opacity: 0.5; }

/* --- Hero --- */
.article-hero {
  max-width: var(--article-width);
  margin: 0 auto 3rem;
  text-align: center;
}
.hero-tag {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 999px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.lead {
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 660px;
  margin: 0 auto;
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
  font-size: 0.84rem;
  color: var(--text-muted);
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* --- Article body --- */
article.content {
  max-width: var(--article-width);
  margin: 0 auto;
}

article.content p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}
article.content p strong,
article.content strong,
.cta-block strong { color: #FFFFFF; font-weight: 700; }

article.content h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.75rem);
  font-weight: 700;
  color: var(--text-primary);
  margin: 3rem 0 1.25rem;
  letter-spacing: -0.02em;
  scroll-margin-top: 100px;
  position: relative;
  padding-left: 1rem;
}
article.content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.35em;
  bottom: 0.35em;
  width: 4px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
  border-radius: 2px;
}

article.content h3 {
  font-size: clamp(1.15rem, 2vw, 1.3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin: 2.25rem 0 0.75rem;
  letter-spacing: -0.01em;
  scroll-margin-top: 100px;
}

article.content a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(6, 182, 212, 0.35);
  transition: color 0.2s, border-color 0.2s;
}
article.content a:hover {
  color: var(--green-light);
  border-bottom-color: var(--green-light);
}

/* --- Figure --- */
.article-image {
  margin: 2.5rem 0;
}
.article-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.article-image figcaption {
  margin-top: 0.85rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.55;
  text-align: center;
  padding: 0 1rem;
}

/* --- CTA block --- */
.cta-block {
  margin: 3rem 0;
  padding: 2rem 2rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(6, 182, 212, 0.08));
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-block p {
  position: relative;
  margin-bottom: 1rem;
  color: var(--text-primary);
}
.cta-block p:last-child { margin-bottom: 0; }
.cta-block .cta-lead {
  font-size: 1.05rem;
  font-weight: 500;
}
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff !important;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  border-bottom: none !important;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
  position: relative;
}
.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(59, 130, 246, 0.6);
  color: #fff !important;
}

/* --- Related articles --- */
.related {
  max-width: var(--article-width);
  margin: 4rem auto 0;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}
.related h3 {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.related-card {
  display: block;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, transform 0.2s;
}
.related-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}
.related-card .rc-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.related-card .rc-title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(10, 14, 26, 0.5);
  margin-top: 4rem;
  padding: 3rem 1.5rem 2rem;
  position: relative;
  z-index: 1;
}
.footer-container {
  max-width: var(--container);
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-about p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-top: 0.75rem;
}
.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-col ul li {
  margin-bottom: 0.625rem;
}
.footer-col ul a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: color 0.2s;
}
.footer-col ul a:hover { color: var(--cyan); }

.footer-disclaimer {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.footer-disclaimer strong { color: var(--text-secondary); }
.footer-copy {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- Blog hub: hero, categories, article grid --- */
.blog-hero {
  max-width: var(--article-width);
  margin: 0 auto 3rem;
  text-align: center;
}
.blog-hero h1 { margin-bottom: 1rem; }
.blog-hero .lead { max-width: 700px; }

.categories-grid {
  max-width: var(--container);
  margin: 0 auto 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.category-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.75rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.category-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.category-card .cat-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: linear-gradient(135deg, rgba(59,130,246,0.18), rgba(6,182,212,0.14));
  border: 1px solid rgba(59,130,246,0.25);
}
.category-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.category-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}
.category-card .cat-meta {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--cyan);
  font-weight: 600;
}

/* Articles list on hub & category pages */
.articles-list {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.article-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, transform 0.2s;
}
.article-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}
.article-card .ac-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.article-card .ac-label.pillar {
  color: var(--green-light);
}
.article-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin: 0;
}
.article-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}
.article-card .ac-read {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.88rem;
  color: var(--cyan);
  font-weight: 600;
}

.section-title {
  max-width: var(--container);
  margin: 0 auto 1.5rem;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.section-subtitle {
  max-width: var(--container);
  margin: -0.75rem auto 2rem;
  color: var(--text-secondary);
  font-size: 0.98rem;
}

/* --- E-E-A-T info blocks inside articles --- */
.info-block {
  margin: 1.75rem 0;
  padding: 1.1rem 1.25rem 1.1rem 1rem;
  border-left: 4px solid var(--blue);
  background: rgba(59, 130, 246, 0.06);
  border-radius: 8px;
}
.info-block .ib-title {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.info-block p { margin: 0; color: var(--text-primary); }
.info-block p + p { margin-top: 0.5rem; }

.info-block.mistake {
  border-left-color: var(--red);
  background: rgba(239, 68, 68, 0.07);
}
.info-block.mistake .ib-title { color: var(--red-light); }

.info-block.tip {
  border-left-color: var(--green);
  background: rgba(16, 185, 129, 0.07);
}
.info-block.tip .ib-title { color: var(--green-light); }

.info-block.important {
  border-left-color: var(--yellow);
  background: rgba(245, 158, 11, 0.08);
}
.info-block.important .ib-title { color: var(--yellow); }

.info-block.experience {
  border-left-color: var(--purple);
  background: rgba(139, 92, 246, 0.07);
}
.info-block.experience .ib-title { color: var(--purple); }

/* Inline CTA (native, inside paragraph flow) */
.inline-cta {
  margin: 1.75rem 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(16,185,129,0.08), rgba(6,182,212,0.08));
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.inline-cta p {
  margin: 0;
  color: var(--text-primary);
  font-size: 0.98rem;
  flex: 1 1 260px;
}
.inline-cta a {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.25rem;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #fff !important;
  font-weight: 700;
  font-size: 0.93rem;
  border-radius: 8px;
  border-bottom: none !important;
  white-space: nowrap;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}
.inline-cta a:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(16, 185, 129, 0.45);
}

/* Tables of contents */
.toc {
  margin: 2rem 0 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.toc-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.toc ol {
  list-style: decimal;
  padding-left: 1.25rem;
  margin: 0;
  color: var(--text-secondary);
}
.toc ol li {
  margin-bottom: 0.45rem;
  line-height: 1.55;
}
.toc ol li a {
  color: var(--text-secondary);
  border-bottom: none;
  transition: color 0.2s;
}
.toc ol li a:hover { color: var(--cyan); }

/* Info lists inside articles (checklists, steps) */
.check-list, .step-list {
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}
.check-list li, .step-list li {
  position: relative;
  padding: 0.6rem 0 0.6rem 2rem;
  color: var(--text-secondary);
  line-height: 1.6;
  border-bottom: 1px solid rgba(30, 41, 59, 0.6);
}
.check-list li:last-child, .step-list li:last-child { border-bottom: none; }
.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: var(--green-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.8rem;
}
.step-list { counter-reset: step; }
.step-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
}

/* Comparison / fact tables inside articles */
.fact-table {
  width: 100%;
  margin: 1.75rem 0;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: 0.94rem;
}
.fact-table th, .fact-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.fact-table th {
  background: rgba(59, 130, 246, 0.08);
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.02em;
}
.fact-table tr:last-child td { border-bottom: none; }
.fact-table td strong { color: var(--text-primary); }

/* Author / E-E-A-T block */
.author-block {
  max-width: var(--article-width);
  margin: 3rem auto 0;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.author-block .ab-avatar {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
}
.author-block .ab-name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}
.author-block .ab-role {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* --- Responsive --- */
@media (max-width: 880px) {
  .nav-menu { display: none; }
  .nav-toggle { display: block; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .article-container { padding: 1.5rem 1rem 3rem; }
  .nav-cta { padding: 0.55rem 1rem; font-size: 0.85rem; }
  .cta-block { padding: 1.5rem 1.25rem; }
  .article-image { margin: 2rem -1rem; }
  .article-image img { border-radius: 0; border-left: none; border-right: none; }
  .article-image figcaption { padding: 0 1rem; }
}