* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f2f7ed;
  color: #203b2b;
}

header {
  text-align: center;
  padding: 25px 15px;
  background: #174c35;
  color: white;
}

header h1 {
  margin-bottom: 8px;
}

header p {
  margin: 0;
}

main {
  width: min(900px, 92%);
  margin: 30px auto;
}

.hero {
  text-align: center;
  padding: 40px 20px;
  border-radius: 20px;
  background: #dcebd4;
}

.hero h2 {
  font-size: 32px;
  margin: 12px 0;
}

.tag {
  color: #42734f;
  font-weight: bold;
  letter-spacing: 1px;
}

.card {
  background: white;
  margin-top: 22px;
  padding: 25px;
  border-radius: 16px;
  box-shadow: 0 5px 18px #173d2510;
}

button {
  border: none;
  border-radius: 9px;
  padding: 12px 18px;
  margin: 8px 5px 8px 0;
  background: #28734c;
  color: white;
  font-size: 15px;
  cursor: pointer;
}

button:hover {
  background: #174c35;
}

.secondary {
  background: #64766a;
}

select, textarea {
  display: block;
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border: 1px solid #c8d7c8;
  border-radius: 8px;
  font: inherit;
}

textarea {
  min-height: 100px;
  resize: vertical;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 22px;
}

.stat {
  text-align: center;
  background: #dcebd4;
  border-radius: 15px;
  padding: 15px;
}

.stat h2 {
  font-size: 32px;
  color: #28734c;
}

#timer {
  font-size: 36px;
  text-align: center;
}

footer {
  text-align: center;
  padding: 20px;
  color: #55715e;
}

@media (max-width: 500px) {
  .hero h2 {
    font-size: 25px;
  }

  .card {
    padding: 18px;
  }
}