body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    color: #333;
    background: #fdfdfd;
}
.nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}
.nav a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: bold;
}
.nav a:hover {
    color: #3498db;
}
h1 { margin-bottom: 0.5rem; color: #2c3e50; }
.subtitle { color: #666; font-size: 1.2rem; margin-bottom: 2rem; }

/* Intro / Experiment Sections */
.intro, .manifesto {
    background: #eef2f5;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border-left: 5px solid #3498db;
}

/* Flex Cards (Personas, Bef/Aft) */
.personas, .comparison {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}
.persona-card, .comparison-card {
    flex: 1;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
}
.persona-card h3, .comparison-card h3 { margin-top: 0; }

/* Questions & Journal Entries */
.question, .entry, .module-card, .lesson-card {
    margin-bottom: 2rem;
    padding: 1rem;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 6px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.question h3 { margin-top: 0; color: #444; }
.hint {
    font-style: italic;
    color: #7f8c8d;
    font-size: 0.9em;
    margin-top: 0.5rem;
}

/* Module Detail Specifics */
.agent-text {
    margin-bottom: 1rem;
    color: #2c3e50;
}
.user-response {
    background: #e8f4fc;
    padding: 1rem;
    border-radius: 6px;
    color: #34495e;
    border-left: 4px solid #3498db;
}
.label {
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: bold;
    display: block;
    margin-bottom: 0.5rem;
    color: #7f8c8d;
}

/* Progress Bars / Status */
.status-mastered { color: #27ae60; border-left: 5px solid #27ae60; padding-left: 1rem; }
.status-in-progress { color: #f39c12; border-left: 5px solid #f39c12; padding-left: 1rem; }
.status-unread { color: #95a5a6; border-left: 5px solid #95a5a6; padding-left: 1rem; }

.lessons {
    margin-top: 0.5rem;
    font-size: 0.9em;
    background: #f9f9f9;
    padding: 0.5rem;
    border-radius: 4px;
}
.lessons h4 {
    margin: 0 0 0.25rem 0;
    font-size: 1em;
    color: #555;
}
.lessons ul {
    margin: 0;
    padding-left: 1.2rem;
    color: #333;
}