.paper-guide {
    position: absolute;
    bottom: 60px;
    width: 825px;
    height: 85vh;
    z-index: 3; 
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.paper-sheet {
    background: var(--paper-color);
    width: 100%;
    min-height: 100vh; 
    height: auto; 
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    padding: 40px 40px;
    padding-bottom: 50vh; 
    font-family: var(--font-typewriter);
    font-size: 1.65rem; 
    line-height: 2.0;
    color: #9e9e9e; 
    overflow: hidden;
    position: relative;
    border: 1px solid #e0e0e0;
}

.words {
    height: 100%;
    outline: none;
    white-space: pre-wrap;
    word-break: break-word;
    transition: transform 0.3s ease-out; 
}

.word {
    margin: 0 15px 0 0; 
    display: inline-block;
}

.letter {
    position: relative;
}

.letter.correct {
    color: var(--text-color); 
    text-shadow: 0 0 1px rgba(0,0,0,0.2);
}

.letter.incorrect {
    color: var(--error-color);
    text-decoration: line-through;
    opacity: 0.7;
}

.letter.extra {
    text-decoration: none;
    opacity: 1;
}

.letter.current::before {
    content: '';
    position: absolute;
    left: -2px;
    top: 10%;
    height: 80%;
    width: 2px;
    background-color: #000;
    animation: blink 1s infinite;
    opacity: 1;
}

.word.current-word-end .letter:last-child::after {
    content: '';
    position: absolute;
    right: 0;
    top: 10%;
    height: 80%;
    width: 2px;
    background-color: #000;
    animation: blink 1s infinite;
    opacity: 1;
}

.sheet-content {
    width: 100%;
    color: var(--text-color);
    font-family: var(--font-typewriter);
    padding-bottom: 100px;
}

.sheet-content h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    text-decoration: underline;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.sheet-footer {
    margin-top: 50px;
    display: flex;
    justify-content: center;
    gap: 30px;
    padding-bottom: 50px;
}

.zen-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background-color: var(--text-color);
    animation: blink 1s infinite;
    vertical-align: middle;
    margin-left: 1px;
}