@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Fira+Code:wght@400;500;600&display=swap');

:root {
  --bg-deep:    #0a0e1a;
  --bg-card:    rgba(255,255,255,0.04);
  --bg-card2:   rgba(255,255,255,0.07);
  --accent:     #f7df1e;
  --accent2:    #e8c900;
  --blue:       #4fc3f7;
  --purple:     #a78bfa;
  --green:      #34d399;
  --red:        #f87171;
  --text:       #e2e8f0;
  --text-muted: #94a3b8;
  --border:     rgba(255,255,255,0.08);
  --glow:       0 0 40px rgba(247,223,30,0.15);
  --radius:     16px;
  --radius-sm:  10px;
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── SCROLLBAR ─────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ─── BACKGROUND BLOBS ──────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 700px 500px at 20% 20%, rgba(247,223,30,.06) 0%, transparent 70%),
    radial-gradient(ellipse 600px 400px at 80% 80%, rgba(79,195,247,.05) 0%, transparent 70%),
    radial-gradient(ellipse 400px 300px at 60% 40%, rgba(167,139,250,.04) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

/* ─── HEADER ────────────────────────── */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%;
  height: 72px;
  background: rgba(10,14,26,0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.4rem; font-weight: 800;
  text-decoration: none; color: var(--text);
}
.logo span { color: var(--accent); font-family: 'Fira Code', monospace; }
.logo-icon {
  width: 36px; height: 36px;
  background: var(--accent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 900; color: #0a0e1a;
  font-family: 'Fira Code', monospace;
}

nav { display: flex; align-items: center; gap: 6px; }
nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem; font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
nav a:hover { color: var(--accent); background: rgba(247,223,30,.08); }
nav a.active { color: var(--accent); }

.btn-nav {
  background: var(--accent);
  color: #0a0e1a !important;
  font-weight: 700 !important;
  padding: 8px 20px !important;
  border-radius: 50px !important;
  transition: var(--transition) !important;
}
.btn-nav:hover { background: var(--accent2) !important; transform: translateY(-1px); }

/* ─── BURGER ────────────────────────── */
.burger {
  display: none;
  flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px; border: none;
  background: none; z-index: 200;
}
.burger span {
  display: block; width: 26px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed; inset: 0;
  background: rgb(10,14,26);
  z-index: 99;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 12px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(.77,0,.18,1);
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
  font-size: 1.5rem; font-weight: 700;
  color: var(--text);
  text-decoration: none;
  padding: 10px 30px;
  border-radius: var(--radius);
  width: 280px; text-align: center;
  transition: var(--transition);
  border: 1px solid transparent;
}
.mobile-nav a:hover { color: var(--accent); border-color: var(--accent); background: rgba(247,223,30,.08); }

/* ─── HERO ──────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 100px 5% 60px;
  position: relative; z-index: 1;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(247,223,30,.1);
  border: 1px solid rgba(247,223,30,.3);
  color: var(--accent);
  font-size: 0.8rem; font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 28px;
  letter-spacing: 0.05em;
  animation: fadeDown 0.6s ease both;
}

.hero h1 {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 24px;
  animation: fadeUp 0.7s 0.1s ease both;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero h1 .mono { font-family: 'Fira Code', monospace; font-size: 0.85em; }

.hero-desc {
  font-size: 1.15rem; color: var(--text-muted); max-width: 580px; margin: 0 auto 40px;
  animation: fadeUp 0.7s 0.2s ease both;
}

.hero-btns {
  display: flex; gap: 14px; justify-content: center; flex-wrap: wrap;
  animation: fadeUp 0.7s 0.3s ease both;
}

.btn-primary {
  background: var(--accent);
  color: #0a0e1a;
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 700; font-size: 1rem;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 0 30px rgba(247,223,30,.3);
}
.btn-primary:hover { background: var(--accent2); transform: translateY(-2px); box-shadow: 0 0 50px rgba(247,223,30,.4); }

.btn-secondary {
  background: transparent;
  color: var(--text);
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 600; font-size: 1rem;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); background: rgba(247,223,30,.05); }

.hero-stats {
  display: flex; gap: 40px; justify-content: center; margin-top: 64px;
  animation: fadeUp 0.7s 0.4s ease both;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num { font-size: 2rem; font-weight: 800; color: var(--accent); display: block; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* ─── SECTIONS COMMON ───────────────── */
section { position: relative; z-index: 1; padding: 100px 5%; }
.section-label {
  display: inline-block;
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
  background: rgba(247,223,30,.1);
  border: 1px solid rgba(247,223,30,.2);
  padding: 4px 14px; border-radius: 50px;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800; line-height: 1.15;
  margin-bottom: 16px;
}
.section-desc { color: var(--text-muted); font-size: 1.05rem; max-width: 560px; }
.section-head { margin-bottom: 64px; }
.section-head.center { text-align: center; }
.section-head.center .section-desc { margin: 0 auto; }

/* ─── ABOUT SECTION ─────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-img-wrap {
  position: relative;
}
.about-code-block {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  position: relative;
  overflow: hidden;
}
.about-code-block::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--blue), var(--purple));
}
.code-line { display: flex; }
.code-num { color: rgba(255,255,255,.2); margin-right: 20px; min-width: 20px; }
.kw { color: var(--purple); }
.fn { color: var(--blue); }
.str { color: var(--green); }
.cm { color: rgba(255,255,255,.3); }
.nm { color: var(--accent); }

.about-features { display: flex; flex-direction: column; gap: 20px; margin-top: 36px; }
.about-feat {
  display: flex; gap: 16px; align-items: flex-start;
}
.feat-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: rgba(247,223,30,.1);
  border: 1px solid rgba(247,223,30,.2);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.feat-title { font-weight: 600; margin-bottom: 4px; }
.feat-desc { font-size: 0.875rem; color: var(--text-muted); }

/* ─── TOPICS SECTION ────────────────── */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.topic-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-decoration: none; color: inherit;
  transition: var(--transition);
  position: relative; overflow: hidden;
  display: flex; flex-direction: column; gap: 14px;
  cursor: pointer;
}
.topic-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--topic-color,var(--accent)) 0%, transparent 60%);
  opacity: 0; transition: var(--transition);
}
.topic-card:hover { border-color: var(--topic-color,var(--accent)); transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.topic-card:hover::before { opacity: 0.05; }
.topic-icon {
  width: 52px; height: 52px;
  background: rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}
.topic-name { font-size: 1.1rem; font-weight: 700; }
.topic-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; }
.topic-meta {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.75rem; color: var(--text-muted);
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.topic-tag {
  background: rgba(255,255,255,.06);
  padding: 3px 10px; border-radius: 50px;
}

/* ─── FEATURES SECTION ──────────────── */
.features-section { background: rgba(255,255,255,.02); }
.features-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}
.feature-card:hover { background: var(--bg-card2); border-color: rgba(255,255,255,.15); transform: translateY(-3px); }
.feat-num {
  font-size: 0.7rem; font-weight: 700;
  color: var(--accent); letter-spacing: 0.1em;
  margin-bottom: 16px;
  font-family: 'Fira Code', monospace;
}
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 0.875rem; color: var(--text-muted); }

/* ─── TESTIMONIALS ──────────────────── */
.reviews-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.review-card:hover { background: var(--bg-card2); }
.stars { color: var(--accent); font-size: 0.9rem; margin-bottom: 14px; }
.review-text { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem; color: #0a0e1a;
}
.reviewer-name { font-weight: 600; font-size: 0.9rem; }
.reviewer-role { font-size: 0.75rem; color: var(--text-muted); }

/* ─── BLOG SECTION ──────────────────── */
.blog-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px;
}
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none; color: inherit;
  transition: var(--transition);
  display: flex; flex-direction: column;
}
.blog-card:hover { border-color: rgba(255,255,255,.2); transform: translateY(-3px); }
.blog-thumb {
  height: 180px;
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
  position: relative; overflow: hidden;
}
.blog-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.blog-tag {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 8px;
}
.blog-title { font-size: 1rem; font-weight: 700; line-height: 1.4; margin-bottom: 8px; }
.blog-desc { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 16px; flex: 1; }
.blog-meta { font-size: 0.75rem; color: var(--text-muted); display: flex; gap: 12px; }

/* ─── CTA / CONTACT ─────────────────── */
.cta-section { text-align: center; }
.cta-box {
  background: linear-gradient(135deg, rgba(247,223,30,.08), rgba(79,195,247,.05));
  border: 1px solid rgba(247,223,30,.2);
  border-radius: 24px;
  padding: 80px 40px;
  position: relative; overflow: hidden;
  max-width: 800px; margin: 0 auto;
}
.cta-box::before {
  content: '{ }';
  position: absolute; right: -20px; bottom: -40px;
  font-size: 14rem; font-family: 'Fira Code', monospace; font-weight: 700;
  color: rgba(247,223,30,.03); line-height: 1;
  pointer-events: none;
}
.cta-box h2 { font-size: clamp(1.8rem,4vw,2.8rem); font-weight: 800; margin-bottom: 16px; }
.cta-box p { color: var(--text-muted); max-width: 500px; margin: 0 auto 36px; font-size: 1.05rem; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ─── FOOTER ────────────────────────── */
footer {
  background: rgba(255,255,255,.02);
  border-top: 1px solid var(--border);
  padding: 60px 5% 30px;
  position: relative; z-index: 1;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 14px; display: inline-flex; }
.footer-brand p { font-size: 0.875rem; color: var(--text-muted); max-width: 260px; line-height: 1.7; }
.footer-col h4 { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 0.875rem; color: var(--text-muted); text-decoration: none; margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 28px; border-top: 1px solid var(--border);
  font-size: 0.8rem; color: var(--text-muted); flex-wrap: wrap; gap: 10px;
}
.footer-socials { display: flex; gap: 10px; }
.social-btn {
  width: 36px; height: 36px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  text-decoration: none; font-size: 0.9rem;
  transition: var(--transition);
}
.social-btn:hover { border-color: var(--accent); background: rgba(247,223,30,.1); }

/* ─── INNER-PAGE ────────────────────── */
.page-hero {
  min-height: 360px;
  display: flex; align-items: center;
  padding: 130px 5% 60px;
  position: relative; z-index: 1;
}
.page-hero-inner { max-width: 760px; }
.page-hero h1 { font-size: clamp(2rem,5vw,3.5rem); font-weight: 900; margin-bottom: 16px; }
.page-hero p { font-size: 1.1rem; color: var(--text-muted); }
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.8rem; color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text); }

.content-section { max-width: 860px; margin: 0 auto; padding: 80px 5%; }
.content-section h2 { font-size: 1.6rem; font-weight: 800; margin: 40px 0 16px; }
.content-section h3 { font-size: 1.2rem; font-weight: 700; margin: 28px 0 12px; color: var(--accent); }
.content-section p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.8; }
.content-section ul { list-style: none; padding: 0; margin-bottom: 20px; }
.content-section ul li {
  padding: 8px 0 8px 24px; position: relative; color: var(--text-muted); font-size: 0.95rem;
}
.content-section ul li::before { content: '▸'; position: absolute; left: 0; color: var(--accent); }
.code-block {
  background: rgba(0,0,0,.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px; margin: 20px 0;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem; line-height: 1.9;
  overflow-x: auto; position: relative;
}
.code-block::before {
  content: 'JS';
  position: absolute; top: 10px; right: 14px;
  font-size: 0.7rem; color: var(--accent); font-weight: 700;
}
.info-box {
  background: rgba(79,195,247,.06);
  border-left: 3px solid var(--blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px; margin: 20px 0;
  font-size: 0.9rem; color: var(--text-muted);
}
.warn-box {
  background: rgba(247,223,30,.06);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px; margin: 20px 0;
  font-size: 0.9rem; color: var(--text-muted);
}
.nav-btns {
  display: flex; gap: 14px; flex-wrap: wrap;
  margin-top: 60px; padding-top: 40px;
  border-top: 1px solid var(--border);
}

/* ─── ANIMATIONS ────────────────────── */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── RESPONSIVE ────────────────────── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  nav { display: none; }
  .burger { display: flex; }
  .mobile-nav { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .cta-box { padding: 50px 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .topics-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
}