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

:root {
  --indigo: #6366f1;
  --indigo-dark: #4f46e5;
  --indigo-light: #e0e7ff;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-400: #94a3b8;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --white: #ffffff;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--slate-900); background: var(--white); line-height: 1.6; overflow-x: hidden; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.gradient-text { background: linear-gradient(135deg, #6366f1, #a855f7); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-title { font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 800; text-align: center; margin-bottom: 12px; }
.section-sub { text-align: center; color: var(--slate-400); margin-bottom: 48px; font-size: 1rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; border-radius: 10px; font-weight: 600; font-size: 0.95rem; text-decoration: none; transition: all .2s; cursor: pointer; border: 2px solid transparent; white-space: nowrap; }
.btn-primary { background: var(--indigo); color: white; } .btn-primary:hover { background: var(--indigo-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(99,102,241,.35); }
.btn-outline { border-color: var(--gray-200); color: var(--slate-900); } .btn-outline:hover { border-color: var(--indigo); color: var(--indigo); }
.btn-ghost { color: var(--slate-700); } .btn-ghost:hover { color: var(--indigo); }
.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 12px; }
.btn-xl { padding: 18px 40px; font-size: 1.1rem; border-radius: 14px; }
.btn-full { width: 100%; }

/* ── Nav ─────────────────────────────────────────────────────── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--gray-200); }
.nav-inner { display: flex; align-items: center; gap: 32px; height: 64px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.1rem; color: var(--slate-900); text-decoration: none; flex-shrink: 0; }
.nav-links { display: flex; gap: 24px; flex: 1; }
.nav-links a { color: var(--slate-700); text-decoration: none; font-size: .9rem; font-weight: 500; } .nav-links a:hover { color: var(--indigo); }
.nav-ctas { display: flex; align-items: center; gap: 10px; }

/* Hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  margin-left: auto;
  flex-shrink: 0;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--slate-900);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* Mobile menu */
.nav-mobile {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: white;
  border-bottom: 1px solid var(--gray-200);
  padding: 8px 24px 20px;
  flex-direction: column;
  z-index: 99;
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
}
.nav-mobile.open { display: flex; }
.nav-mobile a:not(.btn) {
  color: var(--slate-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-200);
  display: block;
}
.nav-mobile-ctas { display: flex; flex-direction: column; gap: 8px; padding-top: 16px; }

/* ── Hero ────────────────────────────────────────────────────── */
.hero { padding: 120px 0 80px; background: linear-gradient(180deg, #f8faff 0%, #fff 100%); text-align: center; overflow: hidden; }
.hero-inner { display: flex; flex-direction: column; align-items: center; gap: 24px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--indigo-light); color: var(--indigo-dark); padding: 6px 16px; border-radius: 100px; font-size: .85rem; font-weight: 600; }
.hero-title { font-size: clamp(2rem, 7vw, 4.5rem); font-weight: 900; line-height: 1.1; letter-spacing: -.02em; max-width: 700px; }
.hero-sub { font-size: clamp(.95rem, 2.5vw, 1.2rem); color: var(--slate-400); max-width: 540px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.hero-social-proof { display: flex; align-items: center; gap: 12px; color: var(--slate-400); font-size: .85rem; }
.avatars { display: flex; }
.avatar { width: 32px; height: 32px; border-radius: 50%; border: 2px solid white; display: flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; color: white; margin-left: -8px; } .avatar:first-child { margin-left: 0; }

/* Mockup */
.mockup-wrapper { width: 100%; max-width: 820px; margin-top: 16px; perspective: 1000px; }
.mockup { border-radius: 16px; overflow: hidden; box-shadow: 0 40px 100px rgba(0,0,0,.2); border: 1px solid var(--gray-200); transform: rotateX(4deg); background: white; }
.mockup-topbar { background: var(--gray-100); padding: 10px 16px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--gray-200); }
.mockup-dots { display: flex; gap: 6px; } .mockup-dots span { width: 12px; height: 12px; border-radius: 50%; background: var(--gray-200); }
.mockup-url { flex: 1; text-align: center; font-size: .75rem; color: var(--slate-400); }
.mockup-body { display: flex; height: 280px; }
.mockup-sidebar { width: 140px; background: #0f172a; padding: 12px 8px; flex-shrink: 0; }
.mockup-nav-item { padding: 8px 12px; border-radius: 8px; font-size: .75rem; color: #94a3b8; margin-bottom: 4px; cursor: default; }
.mockup-nav-item.active { background: #6366f1; color: white; }
.mockup-content { flex: 1; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.mockup-kpis { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.mockup-kpi { background: var(--gray-100); border-radius: 8px; padding: 12px; text-align: center; }
.kpi-num { font-size: 1.4rem; font-weight: 800; color: var(--slate-900); } .kpi-num.green { color: #10b981; } .kpi-num.blue { color: #6366f1; }
.kpi-label { font-size: .65rem; color: var(--slate-400); margin-top: 2px; }
.mockup-chart { display: flex; align-items: flex-end; gap: 6px; height: 80px; background: var(--gray-100); border-radius: 8px; padding: 8px; }
.chart-bar { flex: 1; background: #e0e7ff; border-radius: 4px 4px 0 0; } .chart-bar.active { background: #6366f1; }
.mockup-leads { display: flex; flex-direction: column; gap: 6px; }
.mockup-lead { display: flex; align-items: center; gap: 8px; padding: 6px 8px; background: var(--gray-100); border-radius: 6px; font-size: .75rem; }
.lead-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; } .lead-dot.green { background: #10b981; } .lead-dot.blue { background: #6366f1; } .lead-dot.yellow { background: #f59e0b; }
.mockup-lead span { flex: 1; color: var(--slate-700); font-weight: 500; }
.lead-score { font-weight: 700; color: var(--slate-900); }

/* ── Problems ────────────────────────────────────────────────── */
.problems { padding: 80px 0; background: white; }
.problems-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 48px 0 24px; }
.problem-card { background: #fff8f0; border: 1px solid #fed7aa; border-radius: 16px; padding: 24px; }
.problem-icon { font-size: 2rem; margin-bottom: 12px; }
.problem-card p { color: var(--slate-700); font-size: .95rem; }
.solution-arrow { text-align: center; font-size: 2rem; color: var(--slate-400); margin: 16px 0; }
.solution-box { background: linear-gradient(135deg, #ede9fe, #dbeafe); border-radius: 20px; padding: 32px 24px; text-align: center; }
.solution-box h3 { font-size: clamp(1.1rem, 3vw, 1.6rem); font-weight: 800; }

/* ── How it works ────────────────────────────────────────────── */
.how-it-works { padding: 80px 0; background: var(--slate-900); color: white; }
.how-it-works .section-title { color: white; }
.steps-grid { display: flex; align-items: center; gap: 16px; margin-top: 48px; flex-wrap: wrap; justify-content: center; }
.step-card { background: var(--slate-800); border-radius: 20px; padding: 32px 24px; flex: 1; min-width: 220px; max-width: 300px; text-align: center; border: 1px solid var(--slate-700); }
.step-number { width: 32px; height: 32px; background: var(--indigo); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: .85rem; margin: 0 auto 16px; }
.step-icon { font-size: 2.5rem; margin-bottom: 12px; }
.step-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { color: var(--slate-400); font-size: .9rem; }
.step-connector { font-size: 1.5rem; color: var(--slate-600); flex-shrink: 0; }

/* ── Features ────────────────────────────────────────────────── */
.features { padding: 80px 0; background: var(--gray-100); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 48px; }
.feature-card { background: white; border-radius: 20px; padding: 28px; border: 1px solid var(--gray-200); transition: box-shadow .2s; }
.feature-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,.08); }
.feature-icon { font-size: 2rem; margin-bottom: 12px; }
.feature-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.feature-card p { color: var(--slate-400); font-size: .9rem; }

/* ── Pricing ─────────────────────────────────────────────────── */
.pricing { padding: 80px 0; background: white; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; margin-top: 48px; }
.plan-card { border: 2px solid var(--gray-200); border-radius: 20px; padding: 32px 28px; position: relative; transition: border-color .2s, box-shadow .2s; }
.plan-card.popular { border-color: var(--indigo); box-shadow: 0 0 0 4px rgba(99,102,241,.1); }
.popular-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--indigo); color: white; font-size: .75rem; font-weight: 700; padding: 4px 16px; border-radius: 100px; white-space: nowrap; }
.plan-name { font-weight: 700; font-size: 1rem; margin-bottom: 8px; color: var(--slate-700); }
.plan-price { font-size: 2.25rem; font-weight: 900; margin-bottom: 24px; } .plan-price span { font-size: 1rem; font-weight: 500; color: var(--slate-400); }
.plan-features { list-style: none; margin-bottom: 28px; display: flex; flex-direction: column; gap: 10px; }
.plan-features li { font-size: .9rem; color: var(--slate-700); }

/* ── FAQ ─────────────────────────────────────────────────────── */
.faq { padding: 80px 0; background: var(--gray-100); }
.faq-list { max-width: 720px; margin: 48px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: white; border-radius: 14px; border: 1px solid var(--gray-200); overflow: hidden; }
.faq-item summary { padding: 18px 24px; font-weight: 600; cursor: pointer; font-size: .95rem; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.25rem; color: var(--indigo); flex-shrink: 0; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding: 0 24px 18px; color: var(--slate-700); font-size: .9rem; }

/* ── CTA final ───────────────────────────────────────────────── */
.cta-final { padding: 96px 0; background: linear-gradient(135deg, #4f46e5, #7c3aed); text-align: center; color: white; }
.cta-final h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 900; margin-bottom: 16px; }
.cta-final p { font-size: 1.05rem; margin-bottom: 32px; opacity: .85; }
.cta-final .btn-primary { background: white; color: var(--indigo-dark); } .cta-final .btn-primary:hover { background: #f1f5f9; }
.cta-small { margin-top: 16px; font-size: .8rem; opacity: .65; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer { padding: 40px 0; background: var(--slate-900); color: var(--slate-400); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; color: white; font-size: .9rem; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--slate-400); text-decoration: none; font-size: .85rem; } .footer-links a:hover { color: white; }
.footer-copy { font-size: .8rem; }

/* ════════════════════════════════════════════════════════════════
   RESPONSIVE — tablet  ≤ 768px
═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  /* Nav */
  .nav-links  { display: none; }
  .nav-ctas   { display: none; }
  .nav-hamburger { display: flex; }

  /* Hero */
  .hero { padding: 88px 0 52px; }
  .hero-ctas { flex-direction: column; align-items: stretch; width: 100%; max-width: 320px; }
  .hero-ctas .btn { justify-content: center; }

  /* Mockup — menor e sem 3-D */
  .mockup-wrapper { max-width: 100%; }
  .mockup { transform: none; }
  .mockup-body { height: 200px; }
  .mockup-sidebar { width: 90px; }
  .mockup-nav-item { font-size: .65rem; padding: 6px 8px; }
  .kpi-num { font-size: 1.1rem; }

  /* Sections */
  .problems  { padding: 56px 0; }
  .how-it-works { padding: 56px 0; }
  .features  { padding: 56px 0; }
  .pricing   { padding: 56px 0; }
  .faq       { padding: 56px 0; }
  .cta-final { padding: 64px 0; }

  .section-sub { font-size: .95rem; margin-bottom: 32px; }

  /* Problems grid — 2 columns on tablet */
  .problems-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 32px 0 20px; }

  /* Features — single column */
  .features-grid { grid-template-columns: 1fr; }

  /* Pricing — single column, centered */
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }

  /* Steps */
  .step-connector { transform: rotate(90deg); }
  .step-card { min-width: 180px; padding: 24px 16px; }

  /* Footer */
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 16px; }

  /* Buttons */
  .btn-xl { padding: 14px 28px; font-size: 1rem; }
  .btn-lg { padding: 12px 24px; }
}

/* ════════════════════════════════════════════════════════════════
   RESPONSIVE — mobile  ≤ 480px
═══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  /* Hero */
  .hero { padding: 80px 0 40px; }
  .hero-social-proof { flex-direction: column; gap: 6px; text-align: center; }

  /* Hide heavy mockup on tiny screens */
  .mockup-wrapper { display: none; }

  /* Problems — single column */
  .problems-grid { grid-template-columns: 1fr; }
  .problem-card { padding: 20px 16px; }

  /* Steps — stacked vertically, no connector */
  .steps-grid { flex-direction: column; align-items: stretch; gap: 12px; }
  .step-connector { display: none; }
  .step-card { max-width: 100%; min-width: 0; padding: 20px 16px; text-align: left; }
  .step-number { margin: 0 0 12px; }

  /* Feature card */
  .feature-card { padding: 20px 16px; border-radius: 14px; }

  /* Pricing */
  .plan-card { padding: 24px 16px; border-radius: 16px; }

  /* FAQ */
  .faq-item summary { padding: 14px 16px; font-size: .9rem; }
  .faq-item p { padding: 0 16px 14px; }

  /* Solution box */
  .solution-box { padding: 24px 16px; }

  /* CTA */
  .cta-final { padding: 48px 0; }
  .cta-final p { font-size: .95rem; }
}