* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  color: #1F2937;
  background: #FAFAFA;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }

/* HEADER */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #F3F4F6;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
}
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 22px; }
.logo-icon { font-size: 26px; }
.logo-text { color: #8B5CF6; }
.nav { display: flex; align-items: center; gap: 28px; font-weight: 500; font-size: 15px; color: #4B5563; }
.nav a:hover { color: #8B5CF6; }

/* BUTTONS */
.btn {
  display: inline-block; font-weight: 600; cursor: pointer; border: none;
  padding: 12px 24px; border-radius: 10px; font-size: 15px;
  transition: all .2s; text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, #8B5CF6 0%, #6D28D9 100%);
  color: white; box-shadow: 0 4px 12px rgba(139,92,246,0.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(139,92,246,0.4); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 16px 32px; font-size: 17px; }
.btn-block { display: block; width: 100%; }

/* HERO */
.hero {
  padding: 80px 0 100px;
  background: 
    radial-gradient(circle at 20% 30%, rgba(139,92,246,0.15), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(99,102,241,0.1), transparent 50%);
}
.hero .container {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center;
}
.badge {
  display: inline-block; padding: 6px 14px; background: white;
  border: 1px solid #E5E7EB; border-radius: 100px;
  font-size: 13px; font-weight: 600; color: #6D28D9;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 56px; font-weight: 800; line-height: 1.1;
  letter-spacing: -1.5px; margin-bottom: 20px;
}
.highlight {
  background: linear-gradient(135deg, #8B5CF6, #EC4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 19px; color: #4B5563; margin-bottom: 32px; max-width: 540px;
}
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-note { font-size: 14px; color: #6B7280; }

/* PHONE MOCKUP */
.hero-mockup { display: flex; justify-content: center; }
.phone {
  width: 320px; height: 600px;
  background: #1F2937; border-radius: 40px;
  padding: 14px; box-shadow: 0 30px 60px rgba(0,0,0,0.2);
  position: relative;
}
.phone::before {
  content: ''; position: absolute; top: 22px; left: 50%; transform: translateX(-50%);
  width: 100px; height: 5px; background: #111; border-radius: 10px;
}
.phone-screen {
  width: 100%; height: 100%; background: #ECE5DD;
  border-radius: 28px; padding: 50px 14px 14px;
  overflow: hidden; display: flex; flex-direction: column; gap: 8px;
}
.msg {
  max-width: 80%; padding: 8px 12px; border-radius: 12px;
  font-size: 13px; line-height: 1.4;
}
.msg-user { background: #DCF8C6; align-self: flex-end; border-bottom-right-radius: 4px; }
.msg-bot { background: white; align-self: flex-start; border-bottom-left-radius: 4px; }

/* SECTIONS */
.section { padding: 80px 0; }
.section-alt { background: white; }
.section h2 {
  font-size: 40px; font-weight: 800; text-align: center;
  letter-spacing: -1px; margin-bottom: 12px;
}
.section-subtitle {
  text-align: center; font-size: 18px; color: #6B7280; margin-bottom: 60px;
}

/* CARDS */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: white; padding: 32px 24px; border-radius: 16px;
  border: 1px solid #F3F4F6; transition: all .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(139,92,246,0.1); }
.card-icon { font-size: 32px; margin-bottom: 16px; }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.card p { color: #6B7280; font-size: 15px; }

/* FEATURES */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature {
  padding: 24px; background: #FAFAFA; border-radius: 12px;
  border: 1px solid #F3F4F6;
}
.feature-icon { font-size: 28px; display: block; margin-bottom: 12px; }
.feature h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.feature p { color: #6B7280; font-size: 14px; }

/* PRICING */
.pricing { max-width: 420px; margin: 0 auto; }
.price-card {
  background: white; border-radius: 20px; padding: 40px 32px;
  border: 2px solid #8B5CF6; position: relative;
  box-shadow: 0 20px 50px rgba(139,92,246,0.15);
}
.price-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, #8B5CF6, #6D28D9); color: white;
  padding: 6px 16px; border-radius: 100px; font-size: 12px; font-weight: 700;
}
.price-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.price { display: flex; align-items: baseline; margin-bottom: 24px; }
.price-currency { font-size: 22px; font-weight: 600; color: #6B7280; }
.price-value { font-size: 64px; font-weight: 800; letter-spacing: -2px; }
.price-period { font-size: 16px; color: #6B7280; margin-left: 4px; }
.price-features { list-style: none; margin-bottom: 28px; }
.price-features li { padding: 8px 0; font-size: 15px; color: #4B5563; }
.price-note { text-align: center; margin-top: 12px; font-size: 13px; color: #9CA3AF; }

/* CTA / FORM */
.section-cta {
  background: linear-gradient(135deg, #8B5CF6 0%, #6D28D9 100%);
  color: white;
}
.section-cta h2 { color: white; }
.section-cta .section-subtitle { color: rgba(255,255,255,0.9); }
.cta-box {
  max-width: 480px; margin: 0 auto; text-align: center;
  background: white; padding: 48px 32px; border-radius: 20px;
  color: #1F2937;
  box-shadow: 0 30px 60px rgba(0,0,0,0.2);
}
.cta-box h2 { color: #1F2937; font-size: 28px; margin-bottom: 8px; }
.cta-box p { color: #6B7280; margin-bottom: 28px; font-size: 15px; }
.form-row { margin-bottom: 14px; }
.form input {
  width: 100%; padding: 14px 16px; border: 1.5px solid #E5E7EB;
  border-radius: 10px; font-size: 15px; font-family: inherit;
  transition: border .2s;
}
.form input:focus { outline: none; border-color: #8B5CF6; }
.form-msg { margin-top: 14px; font-size: 14px; min-height: 20px; }
.form-msg.success { color: #10B981; }
.form-msg.error { color: #EF4444; }

/* FOOTER */
.footer {
  padding: 32px 0; text-align: center; color: #9CA3AF;
  font-size: 14px; border-top: 1px solid #F3F4F6; background: white;
}

/* RESPONSIVO */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-mockup { display: none; }
  .hero h1 { font-size: 40px; }
  .cards, .features { grid-template-columns: 1fr; }
  .nav a:not(.btn) { display: none; }
}