/* =============================================
   NeuralPath AI — Premium Dark Theme
   ============================================= */

:root {
  --bg:       #080b14;
  --bg-card:  #0f1423;
  --bg-hover: #161d30;
  --border:   rgba(99,102,241,.18);
  --text:     #e2e8f0;
  --text-muted:#94a3b8;
  --accent:   #6366f1;
  --accent-2: #8b5cf6;
  --accent-glow: rgba(99,102,241,.35);
  --success:  #10b981;
  --radius:   14px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; }

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAVBAR ─────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0;
  transition: background var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  background: rgba(8,11,20,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.logo-mark {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 8px;
  display: inline-block;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
  margin-left: auto;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-ghost {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
  font-family: inherit;
}
.btn-ghost:hover { color: var(--text); background: var(--bg-hover); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border: none;
  padding: 10px 22px;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  font-family: inherit;
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 8px 24px var(--accent-glow); }
.btn-primary.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 12px; }
.btn-primary.btn-full { width: 100%; justify-content: center; }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 22px;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background var(--transition), border-color var(--transition);
  font-family: inherit;
}
.btn-outline:hover { background: var(--bg-hover); border-color: var(--accent); }
.btn-outline.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 12px; }
.btn-outline.btn-full { width: 100%; justify-content: center; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  display: block;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border);
  background: rgba(8,11,20,.96);
}
.mobile-menu a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 10px 0;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}
.mobile-menu a:last-child { border-bottom: none; margin-top: 8px; }
.mobile-menu.open { display: flex; }

/* ── HERO ───────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,.06) 1px, transparent 1px);
  background-size: 60px 60px;
}
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.glow-1 { width: 600px; height: 600px; background: rgba(99,102,241,.12); top: -200px; right: -100px; }
.glow-2 { width: 400px; height: 400px; background: rgba(139,92,246,.1); bottom: 0; left: -100px; }
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99,102,241,.15);
  border: 1px solid rgba(99,102,241,.3);
  color: #a5b4fc;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: .5px;
}
.badge::before {
  content: '';
  width: 6px; height: 6px;
  background: #6366f1;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.4)} }
.hero-headline {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 60%, #a5b4fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.7;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.play-icon { font-size: .7rem; }
.trust-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.trust-row > span { color: var(--text-muted); font-size: .85rem; }
.trust-logos { display: flex; gap: 20px; flex-wrap: wrap; }
.trust-logos span {
  color: var(--text-muted);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .5px;
  opacity: .7;
}

/* Dashboard card */
.dashboard-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,.5);
}
.dash-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.dash-dots { display: flex; gap: 6px; }
.dash-dots span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.dash-title { flex: 1; text-align: center; font-size: .8rem; color: var(--text-muted); font-weight: 500; }
.dash-live {
  display: flex; align-items: center; gap: 6px;
  font-size: .75rem; color: var(--success); font-weight: 600;
}
.dot-live {
  width: 6px; height: 6px; border-radius: 50%; background: var(--success);
  animation: pulse 1.5s infinite;
}
.dash-body { display: flex; gap: 0; }
.dash-metric {
  flex: 1; padding: 20px;
  border-right: 1px solid var(--border);
  text-align: center;
}
.dash-metric:last-child { border-right: none; }
.metric-value { font-size: 1.6rem; font-weight: 800; color: var(--text); }
.metric-label { font-size: .75rem; color: var(--text-muted); margin-top: 4px; }
.dash-chart { padding: 12px 0 0; height: 80px; }
.dash-chart svg { width: 100%; height: 100%; }

/* ── STATS ──────────────────────────────────── */
.stats {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-grid { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 32px; }
.stat-item { text-align: center; }
.stat-value { font-size: 2.8rem; font-weight: 800; color: var(--text); letter-spacing: -1px; }
.stat-label { font-size: .9rem; color: var(--text-muted); margin-top: 4px; }

/* ── SECTIONS ───────────────────────────────── */
.section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-badge {
  display: inline-block;
  background: rgba(99,102,241,.15);
  border: 1px solid rgba(99,102,241,.3);
  color: #a5b4fc;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.5px;
  margin-bottom: 12px;
  color: var(--text);
}
.section-header p { color: var(--text-muted); font-size: 1.05rem; }

/* ── FEATURES ───────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 16px 48px rgba(99,102,241,.15);
}
.feature-icon { font-size: 2rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.feature-card p { color: var(--text-muted); font-size: .9rem; line-height: 1.65; }

/* ── PRICING ────────────────────────────────── */
.pricing-section { background: rgba(99,102,241,.03); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  transition: transform var(--transition);
}
.pricing-card.popular {
  border-color: var(--accent);
  transform: scale(1.03);
  background: linear-gradient(145deg, rgba(99,102,241,.1), var(--bg-card));
}
.popular-badge {
  position: absolute;
  top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  padding: 4px 16px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 700;
  white-space: nowrap;
}
.plan-name { font-size: .85rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 24px; }
.price-amount { font-size: 2.4rem; font-weight: 800; color: var(--text); }
.price-period { color: var(--text-muted); font-size: .9rem; }
.plan-features { list-style: none; margin-bottom: 28px; display: flex; flex-direction: column; gap: 10px; }
.plan-features li { display: flex; gap: 10px; color: var(--text-muted); font-size: .9rem; align-items: center; }
.check { color: var(--success); font-weight: 700; flex-shrink: 0; }

/* ── TESTIMONIALS ───────────────────────────── */
.testimonials-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); }
.stars { color: #f59e0b; font-size: 1rem; margin-bottom: 16px; letter-spacing: 2px; }
blockquote { color: var(--text); font-size: .95rem; line-height: 1.7; margin-bottom: 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.author-name { font-weight: 700; font-size: .9rem; }
.author-title { color: var(--text-muted); font-size: .8rem; margin-top: 2px; }

/* ── FAQ ────────────────────────────────────── */
.faq-container { max-width: 720px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.open { border-color: var(--accent); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  gap: 16px;
  font-family: inherit;
}
.faq-arrow { flex-shrink: 0; transition: transform var(--transition); }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .4s ease; }
.faq-answer p { padding: 0 24px 20px; color: var(--text-muted); font-size: .9rem; line-height: 1.7; }
.faq-item.open .faq-answer { max-height: 200px; }

/* ── CTA SECTION ────────────────────────────── */
.cta-section { background: transparent; }
.cta-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.glow-cta {
  position: absolute;
  width: 400px; height: 400px;
  background: rgba(99,102,241,.15);
  border-radius: 50%;
  filter: blur(60px);
  top: -150px; left: 50%; transform: translateX(-50%);
  pointer-events: none;
}
.cta-card h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
}
.cta-card p { color: var(--text-muted); margin-bottom: 32px; font-size: 1rem; position: relative; }
.signup-form { display: flex; gap: 12px; max-width: 460px; margin: 0 auto 16px; position: relative; }
.email-input {
  flex: 1;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--text);
  font-size: .95rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
}
.email-input::placeholder { color: var(--text-muted); }
.email-input:focus { border-color: var(--accent); }
.signup-note { color: var(--text-muted); font-size: .82rem; }

/* ── FOOTER ─────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.footer-brand { max-width: 240px; }
.footer-brand span:first-child + span {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 10px 0 8px;
}
.footer-brand p { color: var(--text-muted); font-size: .85rem; line-height: 1.6; }
.footer-links { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); margin-bottom: 4px; }
.footer-col a { color: var(--text-muted); text-decoration: none; font-size: .88rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: .83rem;
  color: var(--text-muted);
}
.social-links { display: flex; gap: 16px; }
.social-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: color var(--transition);
}
.social-links a:hover { color: var(--text); }

/* ── FLOATING WIDGETS ───────────────────────── */
.float-whatsapp {
  position: fixed;
  bottom: 80px; right: 24px;
  width: 52px; height: 52px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.4);
  z-index: 90;
  transition: transform var(--transition);
}
.float-whatsapp:hover { transform: scale(1.1); }
.back-to-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 42px; height: 42px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  z-index: 90;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }

/* ── SCROLL REVEAL ──────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease calc(var(--delay, 0s)), transform .6s ease calc(var(--delay, 0s));
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ─────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid, .pricing-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-card.popular { transform: none; }
}
@media (max-width: 768px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .features-grid, .pricing-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .btn-ghost { display: none; }
  .hamburger { display: flex; }
  .cta-card { padding: 40px 24px; }
  .signup-form { flex-direction: column; }
  .stats-grid { flex-direction: column; align-items: center; }
  .section { padding: 64px 0; }
  .footer-top { flex-direction: column; gap: 32px; }
  .footer-links { gap: 32px; }
}