.clean-datepicker {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;

  border: none;
  background: transparent;
  font-size: 1.2rem;
  color: #333;
  outline: none;
  padding: 0;
  cursor: pointer;
}

.save-button {
  background-color: #3b82f6; /* blue-500 */
  color: white;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  height: 2.5rem;
}

.save-button:hover {
  background-color: #2563eb; /* blue-600 */
}

.save-button:active {
  transform: scale(0.97);
}

.save-button:disabled {
  background-color: #cbd5e1; /* gray-300 */
  cursor: not-allowed;
}

.start-end {
  display: flex;
  justify-content: space-between;
}


/* minimal text field input */
.input-group {
    position: relative;
    margin: 30px 0;
}

.minimal-input {
    width: 100%;
    padding: 12px 0;
    font-family: monospace;
    font-size: 16px;
    border: none;
    border-bottom: 2px solid #e1e5e9;
    background: transparent;
    outline: none;
    transition: all 0.3s ease;
    color: #2c3e50;
}

.minimal-input:focus {
    border-bottom-color: #3498db;
}

.minimal-input::placeholder {
    color: #aaa;
    opacity: 1;
}

.minimal-input:focus::placeholder {
    opacity: 0.7;
    transform: translateY(-2px);
    transition: all 0.3s ease;
}


/* minimal text area */
.minimal-textarea {
  width: 100%;
  min-height: 40px;
  resize: none;
  border: none;
  outline: none;
  font-size: 16px;
  line-height: 1.4;
  background: transparent;
  box-sizing: border-box;
  overflow: hidden;
}

.minimal-textarea::placeholder {
  color: #aaa;
}


.form-group {
  display: flex;
  flex-direction: column;
  margin-top: 1rem;
}

.form-label {
  display: block;
  font-size: 0.875rem; /* 14px */
  font-weight: 600;
  color: #374151;
  margin-bottom: 0.5rem; /* 8px */
}

/* Input with unit */

.input-with-unit {
  display: flex;
  align-items: center;
  width: 100%;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem; /* rounded-lg */
  background-color: #fff;
  font-size: 1rem;
  color: #1f2937;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-with-unit:focus-within {
  border-color: #3b82f6; /* border-blue-500 */
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5); /* ring-2 and ring-blue-500 */
}

.input-with-unit input {
  width: 100%;
  padding: 0.75rem 1rem; /* px-4 py-3 */
  color: #2d3748; /* text-gray-800 */
  background-color: transparent;
  border: none;
  outline: none;
  font-size: 1rem;
}

.input-with-unit span {
  color: #a0aec0; /* text-gray-500 */
  padding-right: 1rem; /* 16px */
}

/* Chrome, Safari, Edge, Opera */
.input-with-unit input::-webkit-outer-spin-button,
.input-with-unit input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Firefox */
.input-with-unit input[type="number"] {
  -moz-appearance: textfield;
}

.input-with-unit:has(input:disabled) {
  background-color: #f3f4f6;
  color: #6b7280;
  cursor: not-allowed;
}