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

body {
  background: #f9fbfd;
}

/* WRAPPER */
.form-wrapper {
  max-width: 900px;
  margin: 120px auto 80px;
  padding: 40px;
  background: #ffffff;
  border-radius: 26px;
  box-shadow: 0 18px 45px rgba(0,0,0,0.12);
}

.form-wrapper h2 {
  text-align: center;
  color: #1ea77f;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 35px;
}

/* FORM GROUP */
.form-group {
  margin-bottom: 22px;
}

.form-group label {
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}

/* INPUT */
input[type="text"],
input[type="tel"],
input[type="file"] {
  width: 100%;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1.8px solid #ddd;
  font-size: 14px;
  transition: 0.3s;
}

input:focus {
  outline: none;
  border-color: #1ea77f;
  box-shadow: 0 0 0 3px rgba(30,167,127,0.15);
}

/* LOMBA */
.lomba-option {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

/* PESERTA */
.peserta-box {
  margin-top: 20px;
  padding: 24px;
  background: #f1faf7;
  border-radius: 18px;
  display: none;
}

.peserta-box h4 {
  color: #1ea77f;
  margin-bottom: 16px;
}

.peserta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.peserta-grid input {
  padding: 12px 16px;
  border-radius: 12px;
  border: 1.6px solid #ddd;
}

/* BUTTON */
.btn-submit {
  width: 100%;
  padding: 16px;
  margin-top: 30px;
  border: none;
  border-radius: 18px;
  background: #1ea77f;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: 0.3s;
}

.btn-submit:hover {
  background: #168f6d;
}

/* ALERT */
.alert {
  padding: 18px 22px;
  border-radius: 16px;
  margin-bottom: 28px;
  font-size: 14px;
  line-height: 1.6;
}

.alert.success {
  background: #eafaf4;
  color: #0f5132;
  border: 1.5px solid #1ea77f;
}

.alert.error {
  background: #fdecea;
  color: #842029;
  border: 1.5px solid #dc3545;
}

.btn-wa {
  display: inline-block;
  margin-top: 15px;
  padding: 14px 26px;
  background: linear-gradient(135deg, #25D366, #1ebe5d);
  color: #fff;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-wa:hover {
  background: linear-gradient(135deg, #1ebe5d, #25D366);
  transform: scale(1.05);
}


/* RESPONSIVE */
@media (max-width: 768px) {
  .peserta-grid {
    grid-template-columns: 1fr;
  }

  .form-wrapper {
    margin: 90px 20px;
    padding: 30px;
  }
}