/* ============================================
   AnsrNow — Marketing Site Styles
   ============================================ */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #0ea5e9;
  --dark: #0f172a;
  --gray-900: #1e293b;
  --gray-700: #334155;
  --gray-500: #64748b;
  --gray-300: #cbd5e1;
  --gray-100: #f1f5f9;
  --gray-50: #f8fafc;
  --white: #ffffff;
  --green: #10b981;
  --red: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1), 0 4px 8px rgba(0,0,0,0.05);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 720px; }

/* ---- Typography ---- */
h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; }
h2 { font-size: 2.25rem; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.4; }

.section-header { text-align: center; margin-bottom: 56px; }
.section-sub { color: var(--gray-500); font-size: 1.125rem; max-width: 560px; margin: 12px auto 0; }

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-ghost { background: transparent; color: var(--gray-700); }
.btn-ghost:hover { color: var(--primary); }
.btn-white { background: var(--white); color: var(--primary); }
.btn-white:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; border-radius: var(--radius); }
.btn-block { display: block; width: 100%; text-align: center; }

/* ---- Nav ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid var(--gray-100);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 1.35rem; font-weight: 800; color: var(--dark);
  text-decoration: none; letter-spacing: -0.02em;
}
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  color: var(--gray-700); text-decoration: none; font-size: 0.92rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--primary); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

.mobile-menu-btn {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 4px;
}
.mobile-menu-btn span {
  display: block; width: 22px; height: 2px; background: var(--gray-700); border-radius: 2px;
  transition: all 0.2s;
}
.mobile-menu {
  display: none; flex-direction: column; gap: 12px;
  padding: 16px 24px 24px; border-top: 1px solid var(--gray-100);
}
.mobile-menu a { color: var(--gray-700); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.mobile-menu hr { border: none; border-top: 1px solid var(--gray-100); }

/* ---- Hero ---- */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 50%, var(--primary-light) 100%);
}
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.badge {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  font-size: 0.85rem; font-weight: 600; padding: 6px 14px;
  border-radius: 20px; margin-bottom: 20px;
}
.highlight { color: var(--primary); }
.hero-sub { font-size: 1.2rem; color: var(--gray-500); margin-top: 20px; max-width: 480px; line-height: 1.7; }
.hero-cta { margin-top: 32px; display: flex; align-items: center; gap: 16px; }
.hero-note { font-size: 0.85rem; color: var(--gray-500); }

/* Widget preview */
.widget-preview {
  background: var(--white); border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow-lg); border: 1px solid var(--gray-100);
  max-width: 380px; margin-left: auto;
}
.widget-header {
  background: var(--primary); color: white; padding: 14px 18px;
  display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.95rem;
}
.widget-dot {
  width: 10px; height: 10px; background: var(--green); border-radius: 50%;
  display: inline-block;
}
.widget-messages { padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.msg {
  padding: 10px 14px; border-radius: 12px; font-size: 0.88rem;
  max-width: 85%; line-height: 1.5;
}
.msg-user {
  background: var(--primary); color: white;
  align-self: flex-end; border-bottom-right-radius: 4px;
}
.msg-bot {
  background: var(--gray-100); color: var(--gray-900);
  align-self: flex-start; border-bottom-left-radius: 4px;
}
.msg-bot strong { font-weight: 600; }
.msg.typing { display: flex; gap: 4px; padding: 12px 18px; }
.msg.typing span {
  width: 7px; height: 7px; background: var(--gray-300); border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out;
}
.msg.typing span:nth-child(2) { animation-delay: 0.2s; }
.msg.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
  40% { transform: scale(1.2); opacity: 1; }
}
.widget-input {
  border-top: 1px solid var(--gray-100); padding: 14px 18px;
  display: flex; align-items: center; justify-content: space-between;
  color: var(--gray-300); font-size: 0.88rem;
}
.widget-send {
  width: 32px; height: 32px; background: var(--primary); color: white;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
}

/* ---- Stats ---- */
.stats { padding: 48px 0; border-bottom: 1px solid var(--gray-100); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-value { font-size: 2rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.88rem; color: var(--gray-500); margin-top: 4px; }

/* ---- Problem/Solution ---- */
.problem { padding: 96px 0; }
.problem h2 { text-align: center; }
.problem .section-sub { text-align: center; max-width: 600px; margin: 12px auto 0; }
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 48px; }
.problem-card {
  padding: 36px; border-radius: var(--radius); border: 1px solid var(--gray-100);
}
.problem-card.before { background: var(--gray-50); }
.problem-card.after { background: var(--primary-light); border-color: var(--primary); }
.problem-icon { font-size: 2rem; margin-bottom: 12px; }
.problem-card h3 { margin-bottom: 16px; }
.problem-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.problem-card ul li { padding-left: 24px; position: relative; color: var(--gray-700); font-size: 0.95rem; }
.problem-card.before ul li::before {
  content: '✕'; position: absolute; left: 0; color: var(--red); font-weight: 700;
}
.problem-card.after ul li::before {
  content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700;
}

/* ---- Features ---- */
.features { padding: 96px 0; background: var(--gray-50); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--white); padding: 32px; border-radius: var(--radius);
  border: 1px solid var(--gray-100); transition: box-shadow 0.2s, transform 0.2s;
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature-icon { font-size: 2rem; margin-bottom: 14px; }
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--gray-500); font-size: 0.92rem; line-height: 1.6; }

/* ---- How It Works ---- */
.how-it-works { padding: 96px 0; }
.steps-grid { display: flex; align-items: flex-start; gap: 16px; justify-content: center; }
.step {
  flex: 1; max-width: 280px; text-align: center;
}
.step.arrow {
  flex: 0; font-size: 1.5rem; color: var(--gray-300); margin-top: 16px;
  display: flex; align-items: center;
}
.step-number {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--primary); color: white;
  font-size: 1.2rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h3 { margin-bottom: 8px; }
.step p { color: var(--gray-500); font-size: 0.92rem; }

/* ---- Social Proof ---- */
.social-proof { padding: 96px 0; background: var(--gray-50); }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial {
  background: var(--white); padding: 32px; border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}
.testimonial-stars { color: #f59e0b; font-size: 1.1rem; margin-bottom: 14px; letter-spacing: 2px; }
.testimonial blockquote {
  font-size: 0.95rem; color: var(--gray-700); line-height: 1.7;
  margin-bottom: 20px; font-style: italic;
}
.testimonial-author strong { display: block; font-size: 0.92rem; color: var(--gray-900); }
.testimonial-author span { font-size: 0.82rem; color: var(--gray-500); }

/* ---- Pricing ---- */
.pricing { padding: 96px 0; }
.pricing-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
  max-width: 720px; margin: 0 auto;
}
.pricing-card {
  padding: 40px; border-radius: var(--radius); border: 1px solid var(--gray-100);
  background: var(--white); position: relative;
}
.pricing-card.popular {
  border: 2px solid var(--primary); box-shadow: var(--shadow-lg);
}
.pricing-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: white; font-size: 0.78rem; font-weight: 600;
  padding: 4px 16px; border-radius: 20px;
}
.pricing-name { font-size: 1.1rem; font-weight: 600; color: var(--gray-500); }
.pricing-price {
  font-size: 3rem; font-weight: 800; color: var(--dark); margin: 8px 0;
}
.pricing-price span { font-size: 1rem; font-weight: 500; color: var(--gray-500); }
.pricing-desc { color: var(--gray-500); font-size: 0.9rem; margin-bottom: 24px; }
.pricing-features { list-style: none; margin-bottom: 32px; display: flex; flex-direction: column; gap: 10px; }
.pricing-features li {
  font-size: 0.92rem; color: var(--gray-700); padding-left: 24px; position: relative;
}
.pricing-features li::before {
  content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700;
}

/* ---- FAQ ---- */
.faq { padding: 96px 0; background: var(--gray-50); }
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item {
  background: var(--white); border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm); overflow: hidden;
}
.faq-item summary {
  padding: 18px 24px; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; list-style: none; display: flex; align-items: center;
  justify-content: space-between;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.3rem; color: var(--gray-500); font-weight: 400; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
  padding: 0 24px 18px; color: var(--gray-500); font-size: 0.92rem; line-height: 1.7;
}
.faq-item code { background: var(--gray-100); padding: 2px 6px; border-radius: 4px; font-size: 0.85rem; }

/* ---- Final CTA ---- */
.final-cta {
  padding: 96px 0; text-align: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
}
.final-cta h2 { color: white; margin-bottom: 12px; }
.final-cta p { color: rgba(255,255,255,0.8); font-size: 1.1rem; margin-bottom: 32px; }

/* ---- Footer ---- */
.footer { padding: 64px 0 0; background: var(--dark); color: var(--gray-300); }
.footer-inner { display: flex; justify-content: space-between; gap: 48px; }
.footer-brand .logo { color: var(--white); }
.footer-brand p { font-size: 0.88rem; margin-top: 10px; color: var(--gray-500); line-height: 1.6; }
.footer-links { display: flex; gap: 64px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { color: var(--white); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.footer-col a { color: var(--gray-500); text-decoration: none; font-size: 0.88rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  margin-top: 48px; padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.82rem; color: var(--gray-500);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }

  .nav-links, .nav-cta { display: none; }
  .mobile-menu-btn { display: flex; }
  .mobile-menu.open { display: flex; }

  .hero { padding: 110px 0 60px; }
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .widget-preview { margin: 0 auto; max-width: 340px; }
  .hero-content { text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; flex-wrap: wrap; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .steps-grid { flex-direction: column; align-items: center; }
  .step.arrow { transform: rotate(90deg); }
  .testimonials-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }

  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-links { gap: 40px; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.85rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-value { font-size: 1.5rem; }
}