body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: #333;
}

.main-container {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
    text-align: center;
}

h2 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

span {
    font-size: 1.5rem;
}

.tp-color {
    color: blue;
}

.fp-color {
    color: magenta;
}

.fn-color {
    color: orangered;
}

.tn-color {
    color: deepskyblue;
}

.correct-color {
    background-color: lawngreen !important;
}

.wrong-color {
    background-color: red !important;
}

.neutral-color {
    background-color: lightgray !important;
}

.tooltip-container {
    position: relative;
    display: inline-block;
    cursor: help;
}

.tooltip-text {
    visibility: hidden;
    background-color: black;
    color: white;
    text-align: center;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 14px;
    white-space: nowrap;
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.next-btn {
    display: block;
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: lawngreen;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.next-btn:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

.quiz-btn {
    background-color: yellow;
}

.quiz-btn:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

.main-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 10px;
}

.form-grid {
    display: grid;
    grid-template-columns: max-content 0.7fr;
    column-gap: 10px;
    row-gap: 5px;
    align-items: baseline;
}

.form-grid > div:nth-child(odd) {
    text-align: right;
}

.hidden {
    display: none !important;
}

.long-story {
    display: flex;
    padding: 12px;
    margin: 10px 0;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: lightgray;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}