:root {
  --primary-red: #fe0000;
  --white: #ffffff;
  --light-gray: #f5f5f5;
  --border-gray: #e0e0e0;
  --text-dark: #333333;
  --text-gray: #666666;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 6px 30px rgba(254, 0, 0, 0.15);
}

.container-comprar_pasaje {
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
}

.form-card {
  background: var(--white);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease;
}

.form-card:hover {
  box-shadow: var(--shadow-hover);
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 30px;
  text-align: left;
}

.trip-type {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-gray);
}

.radio-option {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-gray);
  transition: color 0.3s ease;
}

.radio-option:hover {
  color: var(--text-dark);
}

.radio-option input[type="radio"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-gray);
  border-radius: 50%;
  margin-right: 10px;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
  padding: 12px 12px;
}

.radio-option input[type="radio"]:checked {
  border-color: var(--primary-red);
}

.radio-option input[type="radio"]:checked::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--primary-red);
  border-radius: 50%;
}

.radio-option input[type="radio"]:checked + span {
  color: var(--primary-red);
  font-weight: 600;
}

.search-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  line-height: 1.6;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper input,
.input-wrapper select {
  width: 100%;
  padding: 10px 41px 10px 12px;
  border: 2px solid var(--border-gray);
  border-radius: 10px;
  font-size: 1rem;
  color: var(--text-dark);
  background: var(--white);
  transition: all 0.3s ease;
  outline: none;
  font-family: inherit;
  cursor: pointer;
  appearance: none;
}

.input-wrapper input:focus,
.input-wrapper select:focus {
  border-color: var(--primary-red);
  box-shadow: 0 0 0 3px rgba(254, 0, 0, 0.1);
}

.input-wrapper input::placeholder {
  color: #999999;
}

.input-wrapper select {
  padding-right: 45px;
}

.input-wrapper select option {
  color: var(--text-dark);
  background: var(--white);
  padding: 8px;
}

.input-wrapper .icon {
  position: absolute;
  right: 16px;
  font-size: 1.2rem;
  pointer-events: none;
  opacity: 0.6;
}

.date-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.date-group .input-group.hidden {
  display: none;
}

input[type="date"] {
  cursor: pointer;
}

input[type="date"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 0;
  position: absolute;
  right: 0;
  width: 100%;
  height: 100%;
}

.btn-search {
  width: 100%;
  padding: 16px;
  background: var(--primary-red);
  color: var(--white);
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-search:hover {
  background: #e00000;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(254, 0, 0, 0.3);
}

.btn-search:active {
  transform: translateY(0);
}

.titulo-comprar_pasaje {
    display: flex;
}

.titulo-comprar_pasaje img {
    margin-left: 14%;
    width: 70px;
    height: 70px;
}

@media (max-width: 640px) {
  .form-card {
    padding: 30px 20px;
  }

  h1 {
    font-size: 1.5rem;
  }

  .date-group {
    grid-template-columns: 1fr;
  }

  .trip-type {
    flex-direction: column;
    gap: 15px;
  }
}

@media (prefers-color-scheme: light) {
  body {
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
  }
}