:root {
  --bg: #fafafa;
  --bg-dark: #0f172a;
  --bg-section: #f1f5f9;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #059669;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --font: 'Inter', sans-serif;
  --max-w: 1100px;
  --radius: 12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Animate */
.anim {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
.anim.visible {
  opacity: 1;
  transform: translateY(0);
}
.anim-delay-1 { transition-delay: 0.1s; }
.anim-delay-2 { transition-delay: 0.2s; }
.anim-delay-3 { transition-delay: 0.3s; }

/* Header */
header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.logo span {
  color: var(--text);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #25d366;
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s;
}

.header-cta:hover {
  background: #1ebe5d;
}

/* Hero */
#hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1e3a5f 100%);
  color: #fff;
  padding: 5rem 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.15);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #93c5fd;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

#hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 1.2rem;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

#hero h1 em {
  font-style: normal;
  color: #60a5fa;
}

#hero p {
  font-size: 1.15rem;
  color: #94a3b8;
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

.hero-ctas {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.btn-wa {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #25d366;
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 0.9rem 2rem;
  border-radius: 10px;
  text-decoration: none;
  transition:
    background 0.2s,
    transform 0.15s;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-wa:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
}

.btn-outline-white {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.9rem 1.8rem;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: background 0.2s;
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.08);
}

.hero-social-proof {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.proof-number {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
}

.proof-label {
  font-size: 0.8rem;
  color: #64748b;
}

/* Problem section */
#problem {
  padding: 5rem 0;
  background: #fff;
}

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.6rem;
}

#problem h2,
#solution h2,
#pricing h2,
#faq h2,
#testimonials h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
  margin-top: 3rem;
}

.problem-card {
  background: #fff1f2;
  border: 1px solid #ffe4e6;
  border-radius: var(--radius);
  padding: 1.5rem;
}

.problem-card .icon {
  font-size: 1.8rem;
  margin-bottom: 0.8rem;
}

.problem-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #9f1239;
  margin-bottom: 0.5rem;
}

.problem-card p {
  font-size: 0.9rem;
  color: #6b7280;
  line-height: 1.6;
}

/* Solution */
#solution {
  padding: 5rem 0;
  background: var(--bg-section);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-top: 3rem;
}

.solution-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition:
    box-shadow 0.2s,
    transform 0.2s;
}

.solution-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.solution-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.solution-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.solution-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* How it works */
#how {
  padding: 5rem 0;
  background: #fff;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  counter-reset: steps;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  counter-increment: steps;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.step h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Testimonials */
#testimonials {
  padding: 5rem 0;
  background: var(--bg-section);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.testimonial-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.8rem;
  border: 1px solid var(--border);
}

.testimonial-stars {
  color: #f59e0b;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 1.2rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #dbeafe, #93c5fd);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary-dark);
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.testimonial-specialty {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Pricing */
#pricing {
  padding: 5rem 0;
  background: #fff;
  text-align: center;
}

#pricing > .container > p {
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 3rem;
}

.pricing-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--bg-dark);
  color: #fff;
  border-radius: 16px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.15);
  top: -100px;
  right: -80px;
}

.pricing-badge {
  display: inline-block;
  background: rgba(37, 211, 102, 0.15);
  color: #25d366;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.pricing-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.pricing-price sup {
  font-size: 1.5rem;
  font-weight: 700;
  vertical-align: super;
  margin-right: 0.1em;
}

.pricing-period {
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 2rem;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: #cbd5e1;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.check {
  color: #25d366;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.btn-pricing {
  display: block;
  width: 100%;
  text-align: center;
  background: #25d366;
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 1rem;
  border-radius: 10px;
  text-decoration: none;
  transition: background 0.2s;
}

.btn-pricing:hover {
  background: #1ebe5d;
}

.pricing-note {
  font-size: 0.78rem;
  color: #475569;
  margin-top: 1rem;
  text-align: center;
}

/* FAQ */
#faq {
  padding: 5rem 0;
  background: var(--bg-section);
}

.faq-list {
  max-width: 720px;
  margin: 3rem auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.3rem 0;
}

.faq-q {
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-q span {
  transition: transform 0.25s;
}

.faq-q.open span {
  transform: rotate(45deg);
}

.faq-a {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.3s ease,
    padding 0.3s;
}

.faq-a.open {
  max-height: 300px;
  padding-top: 0.8rem;
}

/* CTA Final */
#cta-final {
  background: linear-gradient(135deg, var(--primary-dark), #1e40af);
  color: #fff;
  padding: 5rem 0;
  text-align: center;
}

#cta-final h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

#cta-final p {
  color: #bfdbfe;
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
footer {
  background: var(--bg-dark);
  color: #64748b;
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
}

footer a {
  color: #64748b;
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover {
  color: #94a3b8;
}

/* Responsive */
@media (max-width: 640px) {
  #hero {
    padding: 3.5rem 0 3rem;
  }
  .hero-social-proof {
    gap: 1.5rem;
  }
  .pricing-price {
    font-size: 2.8rem;
  }
}