* {
  box-sizing: border-box;
  font-family: 'Inter', system-ui, sans-serif;
}

body {
  margin: 0;
  background: #f5f8f5;
  color: #1f2933;
}

/* HEADER */
.solar-header {
  background: linear-gradient(135deg, #2f6f3e, #3c8c52);
  color: #fff;
  padding: 30px 20px;
  text-align: center;
}

.solar-header .logo {
  font-size: 26px;
  font-weight: 700;
}

.solar-header span {
  font-weight: 400;
  opacity: .85;
}

.solar-header p {
  margin-top: 6px;
  opacity: .9;
}

/* FORM SECTION */
.solar-form-section {
  padding: 50px 20px;
}

.form-card {
  max-width: 1100px;
  margin: auto;
  background: #fff;
  padding: 40px;
  border-radius: 18px;
  box-shadow: 0 25px 60px rgba(0,0,0,.08);
}

.form-card h1 {
  margin: 0;
  font-size: 30px;
  text-align: center;
}

.subtitle {
  text-align: center;
  color: #5f6c7b;
  margin-bottom: 30px;
}

/* GRID */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.form-grid textarea {
  grid-column: span 2;
  resize: vertical;
  min-height: 100px;
}

/* INPUTS */
.form-grid input,
.form-grid select,
.form-grid textarea {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid #d1d5db;
  font-size: 15px;
  transition: 0.2s ease;
}

.form-grid input:focus,
.form-grid select:focus,
.form-grid textarea:focus {
  border-color: #2f6f3e;
  outline: none;
  box-shadow: 0 0 0 3px rgba(47,111,62,.15);
}

/* BUTTON */
.btn-submit {
  margin-top: 30px;
  width: 100%;
  padding: 18px;
  font-size: 18px;
  font-weight: 600;
  border: none;
  border-radius: 40px;
  color: #fff;
  background: linear-gradient(135deg, #2f6f3e, #3c8c52);
  cursor: pointer;
  box-shadow: 0 15px 35px rgba(47,111,62,.35);
}

.btn-submit:hover {
  transform: translateY(-1px);
}

/* FOOTER */
.solar-footer {
  background: #2f6f3e;
  color: #fff;
  text-align: center;
  padding: 18px;
  margin-top: 60px;
  font-size: 14px;
}

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

  .form-grid textarea {
    grid-column: span 1;
  }

  .form-card {
    padding: 25px;
  }
}