body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

input[type="number"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    z-index: 1;
    pointer-events: auto;
}

button:hover {
    background-color: #218838;
}

.result {
    margin-top: 20px;
    font-size: 1.2em;
    color: #333;
}

#dailyMileageList {
    list-style-type: none;
    padding: 0;
    margin-top: 20px;
}

#dailyMileageList li {
    padding: 8px;
    margin: 4px 0;
    background-color: #f8f9fa;
    border-radius: 4px;
    border-left: 4px solid #28a745;
}

/* Remove the previous first-week styling */
#dailyMileageList li:nth-child(-n+7) {
    border-left-color: initial;
    background-color: initial;
}

/* Phase-specific colors - Rainbow progression */
#dailyMileageList li[data-phase="0"] {
    border-left-color: #ff4136;  /* Red */
    background-color: #ffdfdd;
}

#dailyMileageList li[data-phase="1"] {
    border-left-color: #ff851b;  /* Orange */
    background-color: #ffe4cc;
}

#dailyMileageList li[data-phase="2"] {
    border-left-color: #ffdc00;  /* Yellow */
    background-color: #fff8cc;
}

#dailyMileageList li[data-phase="3"] {
    border-left-color: #2ecc40;  /* Green */
    background-color: #d4edda;
}

#dailyMileageList li[data-phase="4"] {
    border-left-color: #0074d9;  /* Blue */
    background-color: #cce5ff;
}

/* Days after all phases */
#dailyMileageList li:not([data-phase]) {
    border-left-color: #7f00ff;  /* Violet */
    background-color: #e8d5ff;
}

#phasesContainer {
    margin: 20px 0;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.phase-input {
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    background-color: white;
}

.phase-input h4 {
    margin: 0 0 10px 0;
    color: #495057;
}

.phase-input label {
    display: block;
    margin: 5px 0;
}

.phase-input input {
    width: calc(100% - 20px);
    margin: 5px 0;
}

.remove-phase {
    background-color: #dc3545;
    margin-top: 10px;
}

.remove-phase:hover {
    background-color: #c82333;
}

#addPhaseButton {
    background-color: #17a2b8;
    margin-top: 10px;
}

#addPhaseButton:hover {
    background-color: #138496;
}