/* ═══════════════════════════════════════════════════
   АСТРОБОТ — Blog Styles
   Dark glassmorphism · gradient accents · SEO-ready
═══════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
  --bg:          #06060a;
  --bg2:         #0d0d18;
  --glass:       rgba(255,255,255,0.04);
  --glass-hover: rgba(255,255,255,0.07);
  --glass-border:rgba(255,255,255,0.09);
  --glass-border2:rgba(255,255,255,0.14);
  --accent:      #2de2e6;
  --accent-glow: rgba(45,226,230,0.25);
  --accent-glow2:rgba(45,226,230,0.1);
  --purple:      #a855f7;
  --purple-glow: rgba(168,85,247,0.2);
  --pink:        #f472b6;
  --text:        #f4f4f6;
  --text2:       #9494a8;
  --text3:       #4a4a62;
  --green:       #22c55e;
  --gold:        #f59e0b;
  --r:           16px;
  --r-sm:        10px;
  --r-pill:      999px;
  --ease:        cubic-bezier(.4,0,.2,1);
  --spring:      cubic-bezier(.34,1.56,.64,1);
  --t:           0.18s;
  --t-slow:      0.35s;
  --container:   1100px;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 5% -5%,  rgba(168,85,247,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 95% 15%,  rgba(45,226,230,0.12) 0%, transparent 55%),
    radial-gradient(ellipse 40% 40% at 50% 95%, rgba(168,85,247,0.07) 0%, transparent 60%);
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.blog-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ═══════════════════════════════════
   NAVIGATION
═══════════════════════════════════ */
.blog-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(6,6,10,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}
.blog-nav-inner {
  max-width: var(--container);
  margin: 0 auto; padding: 0 24px;
  height: 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.blog-logo {
  display: flex; align-items: center; gap: 9px;
  font-size: 1rem; font-weight: 800; color: var(--text);
  text-decoration: none; letter-spacing: -0.3px;
  transition: opacity var(--t);
}
.blog-logo:hover { opacity: .8; }
.blog-logo span {
  background: linear-gradient(135deg, var(--text) 40%, var(--accent));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.blog-nav-links {
  display: flex; align-items: center; gap: 6px;
}
.blog-nav-links a {
  color: var(--text2); font-size: 0.86rem; text-decoration: none; font-weight: 500;
  padding: 7px 14px; border-radius: var(--r-pill);
  transition: all var(--t) var(--ease);
}
.blog-nav-links a:hover { color: var(--text); background: var(--glass); }
.btn-nav-cta {
  display: flex; align-items: center; gap: 7px;
  background: linear-gradient(135deg, var(--accent), rgba(168,85,247,0.9)) !important;
  color: #000 !important; font-weight: 700 !important;
  padding: 8px 16px !important;
  box-shadow: 0 0 14px var(--accent-glow);
  transition: all var(--t) var(--spring) !important;
}
.btn-nav-cta:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 4px 24px var(--accent-glow) !important;
  background: var(--glass) !important;
  color: #000 !important;
}
.blog-burger {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--text2); padding: 8px; border-radius: var(--r-sm);
  transition: all var(--t);
}
.blog-burger:hover { background: var(--glass); color: var(--text); }
.blog-mobile-menu {
  display: none; flex-direction: column; gap: 2px;
  padding: 8px 24px 12px;
  border-top: 1px solid var(--glass-border);
  background: rgba(6,6,10,0.95);
}
.blog-mobile-menu.open { display: flex; }
.blog-mobile-menu a {
  color: var(--text2); text-decoration: none; font-size: 0.9rem; font-weight: 500;
  padding: 10px 12px; border-radius: var(--r-sm);
  transition: all var(--t) var(--ease);
}
.blog-mobile-menu a:hover { background: var(--glass); color: var(--text); }

/* ═══════════════════════════════════
   HERO
═══════════════════════════════════ */
.blog-hero {
  position: relative; z-index: 1;
  padding: 80px 0 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 70% 80% at 60% 50%, rgba(45,226,230,0.05) 0%, transparent 70%);
}
.blog-hero .blog-container {
  display: flex; align-items: center; justify-content: space-between; gap: 48px;
}
.blog-hero-content { flex: 1; max-width: 560px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--accent-glow2); border: 1px solid rgba(45,226,230,0.25);
  color: var(--accent); font-size: 0.76rem; font-weight: 700;
  padding: 5px 14px; border-radius: var(--r-pill); margin-bottom: 20px;
  letter-spacing: 0.5px; text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900; line-height: 1.1; letter-spacing: -1.5px;
  margin-bottom: 18px; color: var(--text);
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 20%, var(--purple) 80%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 1.05rem; color: var(--text2); line-height: 1.7;
  margin-bottom: 30px; max-width: 480px;
}
.btn-hero {
  display: inline-flex; align-items: center; gap: 9px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #000; font-weight: 800; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 14px; text-decoration: none;
  box-shadow: 0 0 24px var(--accent-glow), 0 0 48px var(--purple-glow);
  transition: all var(--t) var(--spring);
}
.btn-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px var(--accent-glow), 0 0 60px var(--purple-glow);
}
.hero-visual {
  position: relative; width: 280px; height: 280px; flex-shrink: 0;
}
.hero-orb {
  position: absolute; border-radius: 50%;
  background: radial-gradient(circle, rgba(45,226,230,0.2) 0%, transparent 70%);
  width: 200px; height: 200px; top: 40px; left: 40px;
  animation: heroOrb 5s ease-in-out infinite;
}
.hero-orb--2 {
  background: radial-gradient(circle, rgba(168,85,247,0.15) 0%, transparent 70%);
  width: 160px; height: 160px; top: 60px; left: 60px;
  animation: heroOrb 7s ease-in-out infinite reverse;
}
@keyframes heroOrb {
  0%, 100% { transform: scale(1); opacity: .7; }
  50% { transform: scale(1.15); opacity: 1; }
}
.hero-chart {
  position: relative; z-index: 1; width: 100%; height: 100%;
  animation: rotateSlow 40s linear infinite;
}
@keyframes rotateSlow { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════
   STATS
═══════════════════════════════════ */
.blog-stats {
  position: relative; z-index: 1;
  padding: 20px 0 60px;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.stat-item {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--r); padding: 22px 16px; text-align: center;
  transition: all var(--t-slow) var(--ease);
}
.stat-item:hover {
  border-color: var(--glass-border2); background: var(--glass-hover);
  transform: translateY(-3px);
}
.stat-num {
  font-size: 2.2rem; font-weight: 900; letter-spacing: -1px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label {
  font-size: 0.8rem; color: var(--text3); margin-top: 4px; font-weight: 500;
}

/* ═══════════════════════════════════
   ARTICLES
═══════════════════════════════════ */
.blog-articles {
  position: relative; z-index: 1;
  padding: 0 0 80px;
}
.section-head {
  text-align: center; margin-bottom: 48px;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -0.8px;
  color: var(--text); margin-bottom: 10px;
}
.section-sub {
  font-size: 1rem; color: var(--text2); max-width: 500px; margin: 0 auto;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.article-card {
  background: rgba(13,13,24,0.8);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 26px;
  display: flex; flex-direction: column; gap: 14px;
  transition: all var(--t-slow) var(--ease);
  position: relative; overflow: hidden;
  backdrop-filter: blur(12px);
}
.article-card::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(135deg, rgba(45,226,230,0.03) 0%, transparent 60%);
  opacity: 0; transition: opacity var(--t-slow);
}
.article-card:hover { 
  border-color: rgba(45,226,230,0.25);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 30px rgba(45,226,230,0.06);
}
.article-card:hover::before { opacity: 1; }

/* Featured card spans 2 columns */
.article-card--featured {
  grid-column: span 2;
  border-color: rgba(45,226,230,0.2);
  background: rgba(10,10,20,0.9);
}
.article-card--featured::after {
  content: 'Рекомендуем';
  position: absolute; top: 16px; right: 16px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #000; font-size: 0.65rem; font-weight: 800;
  padding: 4px 12px; border-radius: var(--r-pill);
  letter-spacing: 0.3px;
}

.article-tag {
  display: inline-flex; align-items: center;
  background: var(--glass); border: 1px solid var(--glass-border2);
  color: var(--text3); font-size: 0.7rem; font-weight: 700;
  padding: 4px 12px; border-radius: var(--r-pill);
  text-transform: uppercase; letter-spacing: 0.8px;
  width: fit-content;
}
.article-icon {
  width: 46px; height: 46px; border-radius: 13px;
  background: linear-gradient(135deg, rgba(45,226,230,0.1), rgba(168,85,247,0.1));
  border: 1px solid var(--glass-border2);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 16px var(--accent-glow);
}
.article-title {
  font-size: 1.05rem; font-weight: 800; line-height: 1.3; letter-spacing: -0.3px;
  color: var(--text);
}
.article-card--featured .article-title { font-size: 1.25rem; }
.article-excerpt {
  font-size: 0.87rem; color: var(--text2); line-height: 1.7;
  flex: 0;
}
.article-body {
  flex: 1;
  font-size: 0.85rem; color: var(--text2); line-height: 1.8;
  display: flex; flex-direction: column; gap: 10px;
}
.article-body h3 {
  font-size: 0.9rem; font-weight: 700; color: var(--text); margin-top: 6px;
}
.article-body p { color: var(--text2); }
.article-body strong { color: var(--text); font-weight: 600; }

.article-footer {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding-top: 14px; border-top: 1px solid var(--glass-border);
  flex-wrap: wrap;
}
.article-meta { display: flex; gap: 14px; align-items: center; }
.article-read { font-size: 0.76rem; color: var(--text3); }
.article-date { font-size: 0.76rem; color: var(--text3); }

.btn-article {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--accent-glow2); border: 1px solid rgba(45,226,230,0.25);
  color: var(--accent); font-size: 0.8rem; font-weight: 700;
  padding: 8px 16px; border-radius: var(--r-pill); text-decoration: none;
  transition: all var(--t) var(--spring); white-space: nowrap;
}
.btn-article:hover {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #000; border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* ═══════════════════════════════════
   CTA BANNER
═══════════════════════════════════ */
.blog-cta {
  position: relative; z-index: 1;
  padding: 0 0 80px;
}
.cta-card {
  position: relative; overflow: hidden;
  background: rgba(13,13,24,0.9);
  border: 1px solid rgba(45,226,230,0.2);
  border-radius: 24px; padding: 60px 48px;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px rgba(45,226,230,0.06), 0 0 120px rgba(168,85,247,0.04);
}
.cta-orbs { position: absolute; inset: 0; pointer-events: none; }
.cta-orb {
  position: absolute; border-radius: 50%;
}
.cta-orb--1 {
  width: 300px; height: 300px; top: -100px; right: -60px;
  background: radial-gradient(circle, rgba(45,226,230,0.1) 0%, transparent 70%);
}
.cta-orb--2 {
  width: 200px; height: 200px; bottom: -60px; left: 10%;
  background: radial-gradient(circle, rgba(168,85,247,0.1) 0%, transparent 70%);
}
.cta-content {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 18px;
}
.cta-icon {
  width: 70px; height: 70px; border-radius: 22px;
  background: linear-gradient(135deg, rgba(45,226,230,0.12), rgba(168,85,247,0.12));
  border: 1px solid rgba(45,226,230,0.2);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 30px var(--accent-glow), 0 0 60px var(--purple-glow);
}
.cta-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 900; letter-spacing: -1px; line-height: 1.15;
  max-width: 600px;
}
.cta-sub {
  font-size: 1rem; color: var(--text2); max-width: 520px; line-height: 1.7;
}
.cta-btns {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  margin-top: 8px;
}
.btn-cta-primary {
  display: inline-flex; align-items: center; gap: 9px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #000; font-weight: 800; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 14px; text-decoration: none;
  box-shadow: 0 0 20px var(--accent-glow);
  transition: all var(--t) var(--spring);
}
.btn-cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px var(--accent-glow);
}
.btn-cta-outline {
  display: inline-flex; align-items: center;
  background: var(--glass); border: 1px solid var(--glass-border2);
  color: var(--text2); font-weight: 600; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 14px; text-decoration: none;
  transition: all var(--t) var(--ease);
}
.btn-cta-outline:hover {
  background: var(--glass-hover); border-color: var(--accent); color: var(--accent);
}

/* ═══════════════════════════════════
   FOOTER
═══════════════════════════════════ */
.blog-footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--glass-border);
  padding: 48px 0 24px;
  background: rgba(6,6,10,0.8);
  backdrop-filter: blur(20px);
}
.footer-inner {
  display: flex; gap: 48px; justify-content: space-between;
  flex-wrap: wrap; margin-bottom: 36px;
}
.footer-brand {
  max-width: 280px; display: flex; flex-direction: column; gap: 10px;
}
.footer-brand p { font-size: 0.83rem; color: var(--text3); line-height: 1.65; }
.footer-links {
  display: flex; gap: 48px; flex-wrap: wrap;
}
.footer-col {
  display: flex; flex-direction: column; gap: 8px;
}
.footer-col-title {
  font-size: 0.72rem; font-weight: 700; color: var(--text3);
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px;
}
.footer-col a {
  font-size: 0.84rem; color: var(--text3); text-decoration: none;
  transition: color var(--t);
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  padding-top: 20px; border-top: 1px solid var(--glass-border);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 0.76rem; color: var(--text3);
}

/* ═══════════════════════════════════
   RESPONSIVE
═══════════════════════════════════ */
@media (max-width: 900px) {
  .articles-grid { grid-template-columns: 1fr 1fr; }
  .article-card--featured { grid-column: span 2; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-visual { display: none; }
  .blog-hero .blog-container { justify-content: center; }
  .blog-hero-content { max-width: 100%; text-align: center; }
  .hero-sub { margin: 0 auto 30px; }
}

@media (max-width: 600px) {
  .blog-nav-links { display: none; }
  .blog-burger { display: flex; }
  .articles-grid { grid-template-columns: 1fr; }
  .article-card--featured { grid-column: span 1; }
  .article-card--featured .article-title { font-size: 1.1rem; }
  .cta-card { padding: 36px 20px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; }
  .footer-links { gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .hero-title { font-size: 1.9rem; }
}

/* ── Blog filters ── */
.blog-filters {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: 36px;
}
.blog-filter-btn {
  padding: 8px 18px; border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.6);
  font-size: 0.875rem; font-weight: 500; cursor: pointer;
  transition: all 0.2s ease; font-family: inherit;
}
.blog-filter-btn:hover { border-color: rgba(45,226,230,0.4); color: #fff; }
.blog-filter-btn.active {
  background: linear-gradient(135deg, rgba(45,226,230,0.15), rgba(168,85,247,0.15));
  border-color: rgba(45,226,230,0.5);
  color: #2de2e6;
}

/* ── Article cover emoji ── */
.article-cover-emoji {
  font-size: 2.8rem; line-height: 1; margin-bottom: 12px;
}

/* ── Loading / empty states ── */
.articles-loading {
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 60px 0; color: rgba(255,255,255,0.4); font-size: 0.95rem;
}
.loading-spinner {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid rgba(45,226,230,0.2);
  border-top-color: #2de2e6;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.articles-empty {
  grid-column: 1 / -1;
  text-align: center; padding: 60px 0;
  color: rgba(255,255,255,0.35); font-size: 1rem;
}