body {
  margin: 0;
  background: #f6f7f6;
  font-family: Arial, sans-serif;
  color: #1f2933;
}

.shell {
  max-width: 1100px;
  margin: 30px auto;
  background: #fff;
  min-height: 90vh;
  border: 1px solid #e5e7eb;
}

.topbar {
  height: 70px;
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 0 28px;
  border-bottom: 1px solid #eee;
}

.logo {
  color: #2fac45;
  font-weight: bold;
}

nav {
  display: flex;
  gap: 25px;
}

nav a {
  text-decoration: none;
  color: #555;
}

nav a.active {
  color: #111;
  border-bottom: 2px solid #2fac45;
  padding-bottom: 4px;
}

main {
  padding: 28px;
}

.hero {
  height: 220px;
  background: linear-gradient(#fff, #fafafa);
  border-radius: 10px;
  margin-bottom: 28px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 24px;
}

.card {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 24px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(0,0,0,.03);
}

.green {
  color: #2fac45;
}

.odd {
  font-size: 36px;
  color: #2fac45;
  font-weight: bold;
}

.pick {
  border-top: 1px solid #eee;
  padding: 14px 0;
}

.pick span {
  display: block;
  color: #777;
  margin-top: 5px;
}

.button {
  display: block;
  text-align: center;
  background: #2fac45;
  color: #fff;
  padding: 15px;
  border-radius: 8px;
  text-decoration: none;
  margin-top: 20px;
}

input {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  margin: 8px 0 14px;
}

button {
  width: 100%;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid #2fac45;
  background: #fff;
  color: #2fac45;
  font-weight: bold;
  cursor: pointer;
}

input[type="checkbox"] {
  width: auto;
  margin-right: 8px;
}

.settings label {
  display: block;
  margin: 10px 0;
}

.settings input[type="number"],
.settings input[type="text"],
.settings select {
  width: 100%;
}

@media (max-width: 850px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    height: 120px;
  }
}