body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f6f8fb;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: auto;
  padding: 30px;
}

h1 {
  font-size: 26px;
  margin-bottom: 20px;
}

/* Box */
.box {
  background: #fff;
  padding: 25px;
  border-radius: 12px;
  border: 1px solid #e6ebf2;
}

.sub {
  color: #6b7280;
  margin-bottom: 25px;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* Card */
.card {
  background: #f9fbff;
  padding: 20px;
  border-radius: 12px;
  border: 1px solid #e5eaf1;
  transition: 0.25s;
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.05);
}

/* Big Card */
.big {
  grid-column: span 1;
  border: 2px solid #4a6cf7;
}

/* Badge */
.beta {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #4a6cf7;
  color: white;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 6px;
}

/* Icon */
.icon {
  font-size: 28px;
  margin-bottom: 10px;
}

.big-icon {
  font-size: 36px;
}

/* Button */
.btn {
  display: block;
  margin-top: 15px;
  padding: 10px;
  background: linear-gradient(90deg, #4a6cf7, #6a8dff);
  color: white;
  text-align: center;
  border-radius: 6px;
  text-decoration: none;
}

/* Sub button */
.subbtn {
  margin-top: 10px;
  background: #eef2f7;
  padding: 8px;
  text-align: center;
  border-radius: 6px;
  font-size: 13px;
}

/* Link */
.link {
  margin-top: 10px;
  display: inline-block;
  color: #4a6cf7;
  text-decoration: none;
  font-weight: 500;
}