/* ===== VARIÁVEIS GLOBAIS ===== */
:root {
  --text-color: #1e293b;
  --gray: #64748b;
  --primary: #4361ee;
  --primary-light: #818cf8;
  --secondary: #3b82f6;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --border-radius: 16px;
  --card-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --transition: all 0.2s ease;
}

/* ===== HERO ===== */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--text-color);
  margin-bottom: 16px;
}
.hero p {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== SEÇÕES DE FERRAMENTAS ===== */
.section-title {
  font-size: 20px;
  font-weight: 700;
  margin: 48px 0 20px;
  color: var(--text-color);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 12px;
}

.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px 20px;
  text-decoration: none;
  color: var(--text-color);
  transition: var(--transition);
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px -8px rgba(67, 97, 238, 0.15);
  border-color: var(--primary-light);
}
.tool-icon {
  font-size: 28px;
  line-height: 1;
}
.tool-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
}
.tool-card p {
  font-size: 13px;
  color: var(--gray);
  margin: 0;
}

/* ===== BOTÕES GLOBAIS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn:hover {
  background: var(--secondary);
  transform: translateY(-1px);
}
.btn-block {
  width: 100%;
}

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border-color);
  padding: 32px 0;
  text-align: center;
  color: var(--gray);
  font-size: 13px;
  margin-top: 48px;
}
footer a {
  color: var(--primary);
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}

/* ===== RESPONSIVO ===== */
@media (max-width: 640px) {
  .hero {
    padding: 48px 0 36px;
  }
  .tools-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .tool-card {
    padding: 16px 14px;
  }
  .tool-icon {
    font-size: 22px;
  }
  .tool-card h3 {
    font-size: 13px;
  }
  .tool-card p {
    display: none;
  }
  .section-title {
    font-size: 17px;
    margin: 36px 0 14px;
  }
}