* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Segoe UI", Arial, sans-serif;
  background: linear-gradient(135deg, #7c3aed, #4c1d95);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 16px;
}

.app-container {
  width: 100%;
  max-width: 640px;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

header.app-header {
  background: linear-gradient(135deg, #111, #333);
  color: #fff;
  padding: 28px 24px;
  text-align: center;
}

header.app-header h1 {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

header.app-header p {
  color: #ccc;
  font-size: 0.9rem;
}

main {
  padding: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: #333;
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid #e2e2e2;
  border-radius: 10px;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: #7c3aed;
}

.form-row {
  display: flex;
  gap: 16px;
}

.form-row .form-group {
  flex: 1;
}

.info-text {
  font-size: 0.85rem;
  color: #666;
  background: #f3ecff;
  border-left: 4px solid #7c3aed;
  padding: 10px 12px;
  border-radius: 6px;
  margin-bottom: 20px;
}

.submit-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(124, 58, 237, 0.35);
}

#map-container {
  margin-top: 24px;
  background: #f8f8fb;
  border-radius: 10px;
  padding: 12px;
  min-height: 60px;
}

#results-container {
  margin-top: 20px;
}

.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.breakdown-table td {
  padding: 10px 8px;
  border-bottom: 1px solid #eee;
  color: #333;
}

.breakdown-table td:last-child {
  text-align: right;
  font-weight: 600;
}

.breakdown-table .total-row td {
  border-top: 2px solid #7c3aed;
  border-bottom: none;
  font-size: 1.4rem;
  color: #7c3aed;
  font-weight: 800;
  padding-top: 16px;
}

.loading {
  text-align: center;
  color: #7c3aed;
  font-weight: 600;
  padding: 16px;
}

.error {
  background: #fde2e2;
  color: #b91c1c;
  padding: 12px 14px;
  border-radius: 8px;
  font-weight: 600;
}

@media (max-width: 480px) {
  .form-row {
    flex-direction: column;
    gap: 0;
  }

  header.app-header h1 {
    font-size: 1.3rem;
  }
}