:root {
  --bg-dark: #050507;
  --bg-card: #111118;
  --primary: #7c3aed;
  --secondary: #3b82f6;
  --accent: #10b981; /* Verde para sucesso/networking */
  --warning: #f59e0b; /* Amarelo para o alerta */
  --text-main: #ffffff;
  --text-dim: #a1a1aa;
  --gradient: linear-gradient(135deg, #7c3aed, #3b82f6);
  --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

/* RESET & BASE */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 8%;
  position: fixed;
  width: 100%;
  top: 0;
  background: rgba(5, 5, 7, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 1000;
}

header h1 {
  font-size: 1.25rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn-back {
  text-decoration: none;
  color: var(--text-dim);
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.btn-back:hover {
  border-color: var(--primary);
  color: var(--text-main);
  background: rgba(124, 58, 237, 0.1);
}

/* HERO */
.hero-small {
  padding: 160px 8% 60px;
  text-align: left;
  background: radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.15), transparent 40%);
}

.badge {
  background: rgba(124, 58, 237, 0.1);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 1px solid rgba(124, 58, 237, 0.2);
}

.hero-content h2 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin: 1rem 0;
  letter-spacing: -2px;
}

/* GRID & CARDS */
.content-section {
  padding: 60px 8%;
}

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

.card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.5);
}

.card-icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  background: rgba(255, 255, 255, 0.05);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.card h3 {
  margin-bottom: 1rem;
  font-weight: 700;
}

.card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* WARNING SECTION */
.warning-box {
  background: rgba(245, 158, 11, 0.03);
  border: 1px dashed rgba(245, 158, 11, 0.3);
  padding: 3rem;
  border-radius: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.warning-box h3 {
  color: var(--warning);
  margin-bottom: 1.5rem;
  text-align: center;
}

.warning-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.warning-list li {
  padding-left: 25px;
  position: relative;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.warning-list li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: var(--warning);
  font-weight: bold;
}

/* HIGHLIGHT CARD (CONCLUSÃO) */
.highlight-card {
  background: var(--gradient);
  text-align: center;
  padding: 4rem 2rem;
  border: none;
}

.highlight-card h3, .highlight-card p {
  color: white;
}

.highlight-card p {
  font-size: 1.25rem;
  font-weight: 600;
  max-width: 700px;
  margin: 0 auto;
}

/* FOOTER */
footer {
  padding: 4rem;
  text-align: center;
  color: var(--text-dim);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-small { padding-top: 120px; }
  .warning-box { padding: 1.5rem; }
}