:root {
  --night: #05070e;
  --night-2: #0f172a;
  --crimson: #e11d48;
  --magenta: #be185d;
  --text: #f8fafc;
  --muted: #94a3b8;
  --card: rgba(255, 255, 255, 0.05);
  --glass: rgba(255, 255, 255, 0.08);
  --success: #10b981;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: 
    radial-gradient(1000px circle at 50% 0%, rgba(225, 29, 72, 0.15), transparent 70%),
    linear-gradient(180deg, var(--night) 0%, var(--night-2) 100%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
}

.text-gradient {
  background: linear-gradient(90deg, #f43f5e, #fb7185);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 7, 14, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem 0;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 45px;
  transition: transform 0.3s;
}
.logo img:hover {
  transform: scale(1.05);
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(90deg, var(--crimson), var(--magenta));
  color: #fff;
  box-shadow: 0 8px 24px rgba(225, 29, 72, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(225, 29, 72, 0.5);
  filter: brightness(1.1);
}

/* Hero Section */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero-img {
  max-width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 40px rgba(225, 29, 72, 0.2);
  margin-top: 3rem;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

/* Plans / Pricing */
.plans {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
}

.grid-plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--glass);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
}

.card:hover {
  transform: translateY(-10px);
  border-color: rgba(225, 29, 72, 0.5);
  box-shadow: 0 15px 40px rgba(0,0,0,0.4), 0 0 20px rgba(225, 29, 72, 0.2);
}

.card.popular::before {
  content: 'MAIS VENDIDO';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #f59e0b, #ef4444);
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  box-shadow: 0 5px 15px rgba(245, 158, 11, 0.4);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 1.5rem 0;
  color: #fff;
}

.price span {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 400;
}

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

.features li {
  margin-bottom: 0.8rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.features li::before {
  content: '✓';
  color: var(--success);
  font-weight: bold;
}

/* CTA WhatsApp Flutuante */
.wa-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: #FFF;
  border-radius: 50%;
  text-align: center;
  font-size: 30px;
  box-shadow: 0px 5px 20px rgba(37, 211, 102, 0.5);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: transform 0.3s;
}

.wa-float:hover {
  transform: scale(1.1) rotate(5deg);
}

/* Footer */
footer {
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 3rem 0 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Utility for Keyword Density */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}