/* ====================================================
   Uptracker — SEO pages (blog, landing pages)
   Dark theme, consistent with main design system
   ==================================================== */

:root {
  --bg:        #060C17;
  --bg-1:      #0C1424;
  --bg-2:      #121D33;
  --accent:    #00C4A3;
  --accent-2:  #00DDB8;
  --accent-dim: rgba(0,196,163,.12);
  --accent-glow: rgba(0,196,163,.25);
  --cta:       #F59E0B;
  --cta-dim:   rgba(245,158,11,.13);
  --text:      #E2EAF8;
  --text-2:    #A0AABA;
  --text-3:    #6B7A99;
  --border:    rgba(255,255,255,.07);
  --border-2:  rgba(255,255,255,.12);
  --radius:    12px;
  --radius-lg: 18px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ─────────────────────────────────── */
.seo-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6,12,23,.90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.seo-nav__logo img { height: 28px; display: block; }

.seo-nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.seo-nav__links a {
  color: var(--text-2);
  font-size: .9rem;
  transition: color .18s;
}
.seo-nav__links a:hover { color: var(--accent); text-decoration: none; }

.seo-nav__cta a {
  background: var(--cta);
  color: #020a06;
  padding: .55rem 1.35rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: .9rem;
  transition: background .18s, transform .12s;
  display: inline-block;
}
.seo-nav__cta a:hover {
  background: #D97706;
  text-decoration: none;
  transform: translateY(-1px);
}

/* ── Layout ──────────────────────────────── */
.seo-wrapper {
  max-width: 820px;
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
}

/* ── Breadcrumb ──────────────────────────── */
.seo-breadcrumb {
  font-size: .82rem;
  color: var(--text-3);
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-wrap: wrap;
}
.seo-breadcrumb a { color: var(--text-3); }
.seo-breadcrumb a:hover { color: var(--accent); text-decoration: none; }
.seo-breadcrumb .sep { opacity: .5; }

/* ── Typography ──────────────────────────── */
.seo-wrapper h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.03em;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.seo-wrapper .article-meta {
  font-size: .82rem;
  color: var(--text-3);
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.seo-wrapper p {
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 1.15rem;
  font-size: 1.03rem;
}

.seo-wrapper strong {
  color: var(--text);
  font-weight: 600;
}

.seo-wrapper h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin: 2.5rem 0 .85rem;
  padding-left: .9rem;
  border-left: 3px solid var(--accent);
  letter-spacing: -.02em;
}

.seo-wrapper h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin: 1.75rem 0 .6rem;
}

.seo-wrapper ul {
  margin: .5rem 0 1.5rem 0;
  padding: 0;
  list-style: none;
}
.seo-wrapper ul li {
  color: var(--text-2);
  line-height: 1.75;
  padding: .3rem 0 .3rem 1.4rem;
  position: relative;
  font-size: 1.03rem;
}
.seo-wrapper ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .75rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .75;
}
.seo-wrapper ul li strong { color: var(--text); }

.seo-wrapper code {
  background: var(--bg-2);
  color: var(--accent);
  padding: .15rem .45rem;
  border-radius: 5px;
  font-size: .88rem;
  font-family: 'JetBrains Mono', monospace;
}

/* ── CTA box ─────────────────────────────── */
.seo-cta-box {
  background: linear-gradient(135deg, rgba(0,196,163,.1) 0%, rgba(0,196,163,.06) 100%);
  border: 1px solid var(--accent-glow);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  text-align: center;
  margin: 3rem 0;
  position: relative;
  overflow: hidden;
}
.seo-cta-box::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.seo-cta-box h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: .6rem;
}
.seo-cta-box p {
  color: var(--text-2);
  margin-bottom: 1.35rem;
  font-size: .97rem;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--cta);
  color: #020a06;
  font-weight: 700;
  font-size: 1rem;
  padding: .75rem 1.75rem;
  border-radius: 9px;
  transition: background .18s, transform .12s, box-shadow .2s;
  text-decoration: none;
}
.btn-cta:hover {
  background: #D97706;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245,158,11,.25);
  text-decoration: none;
  color: #020a06;
}

/* ── Blog index ──────────────────────────── */
.blog-intro {
  color: var(--text-2);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.blog-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.blog-card {
  display: block;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: padding-left .2s;
  position: relative;
}
.blog-card:hover { text-decoration: none; padding-left: .5rem; }
.blog-card:first-child { padding-top: 0; }

.blog-card__date {
  font-size: .78rem;
  color: var(--text-3);
  margin-bottom: .5rem;
  font-weight: 500;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.blog-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: .55rem;
  line-height: 1.4;
  transition: color .18s;
}
.blog-card:hover .blog-card__title { color: var(--accent); }

.blog-card__desc {
  font-size: .93rem;
  color: var(--text-2);
  line-height: 1.65;
}

.blog-card__arrow {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--border-2);
  font-size: 1.2rem;
  transition: color .18s, right .2s;
}
.blog-card:hover .blog-card__arrow {
  color: var(--accent);
  right: -.25rem;
}

/* ── Landing pages ───────────────────────── */
.landing-hero {
  background: linear-gradient(135deg, rgba(0,196,163,.08) 0%, rgba(0,196,163,.03) 100%);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  margin-bottom: 2.5rem;
  position: relative;
  overflow: hidden;
}
.landing-hero::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.landing-hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin-bottom: .8rem;
  border: none;
  padding: 0;
}
.landing-hero p {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 1.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.feature-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color .2s, transform .15s;
}
.feature-card:hover {
  border-color: var(--accent-glow);
  transform: translateY(-2px);
}
.feature-card__icon {
  font-size: 1.5rem;
  margin-bottom: .6rem;
}
.feature-card h3 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: .4rem;
}
.feature-card p {
  font-size: .85rem;
  color: var(--text-2);
  margin: 0;
  line-height: 1.6;
}

/* ── Stat strip ──────────────────────────── */
.seo-stats {
  display: flex;
  gap: 1.5rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}
.seo-stat {
  flex: 1;
  min-width: 130px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  text-align: center;
}
.seo-stat__num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.seo-stat__label {
  font-size: .78rem;
  color: var(--text-3);
  margin-top: .25rem;
}

/* ── Back link ───────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--text-3);
  font-size: .9rem;
  margin-top: 2.5rem;
  transition: color .18s;
}
.back-link:hover { color: var(--accent); text-decoration: none; }

/* ── Footer ──────────────────────────────── */
.seo-footer {
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  padding: 1.75rem 2rem;
  text-align: center;
  font-size: .84rem;
  color: var(--text-3);
}
.seo-footer a {
  color: var(--text-3);
  margin: 0 .6rem;
  transition: color .18s;
}
.seo-footer a:hover { color: var(--accent); text-decoration: none; }

/* ── Responsive ──────────────────────────── */
@media (max-width: 640px) {
  .seo-nav { padding: .8rem 1rem; }
  .seo-nav__links { display: none; }
  .seo-wrapper { padding: 2rem 1rem 4rem; }
  .seo-cta-box { padding: 1.75rem 1.25rem; }
  .landing-hero { padding: 1.75rem 1.25rem; }
  .seo-stats { gap: .75rem; }
}