/* --- Global Reset & Variables --- */
:root {
    --background: #121212;
    --surface1: #1a1a1a;
    --surface2: #242424;
    --primary-text: #e0e0e0;
    --secondary-text: #aaaaaa;
    --accent: #ffdd57;
    --accent-hover: #ffc800;
    --border-color: #333333;
}

body {
    font-family: 'Source Serif 4', Georgia, serif;
    background: var(--background);
    color: var(--primary-text);
    margin: 0;
    line-height: 1.6;
    font-size: 17px;
}

h1,
h2,
h3 {
    font-family: 'Inter', sans-serif;
    color: var(--primary-text);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5em;
}

section {
    padding: 60px 20px;
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-hover);
    text-decoration: none;
}

/* --- Hero Section --- */
.hero {
    padding: 80px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    color: var(--accent);
    margin: 0;
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 400;
    margin: 10px 0 20px;
    color: var(--primary-text);
    font-family: 'Source Serif 4', serif;
    font-style: italic;
}

.hero-text {
    font-size: 1.1rem;
    color: var(--secondary-text);
    max-width: 600px;
    margin: 0 auto 30px;
}

/* --- Sections --- */
.manifesto {
    background: var(--surface1);
}

.manifesto p,
.manifesto ol,
.manifesto ul {
    max-width: 700px;
    margin: 0 auto 1em;
    font-size: 1.15rem;
    text-align: left;
}

.manifesto ul {
    list-style-position: outside;
    padding-left: 20px;
}

.manifesto li {
    margin-bottom: 1em;
}

.manifesto li strong {
    color: var(--primary-text);
}

.manifesto li code {
    background-color: var(--surface2);
    border: 1px solid var(--border-color);
    color: var(--secondary-text);
    padding: 0.1em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: monospace;
}

.manifesto strong {
    color: var(--primary-text);
    font-weight: 600;
}

.manifesto hr {
    border: none;
    height: 1px;
    background-color: var(--border-color);
    max-width: 200px;
    margin: 2.5em auto;
}

/* --- App-Specific Styles --- */
#app-section {
    max-width: 1400px;
}

/* Style for the "Experiment Results" title */
#app-section>h2 {
    font-size: 2rem;
    margin-bottom: 40px;
}

#paper-title {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    text-align: center;
    color: var(--primary-text);
    font-size: 1.2em;
    line-height: 1.3;
    overflow-wrap: break-word;
    hyphens: none;
    max-width: 90ch;
    margin: 0 auto 0.2em;
}

.paper-controls {
    display: flex;
    justify-content: center;
    gap: 0.75em;
    margin-bottom: 1em;
}

.paper-controls .btn {
    font-family: 'Inter', sans-serif;
    font-size: 0.9em;
    color: var(--background);
    background: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 6px;
    padding: 0.35em 0.6em;
    text-decoration: none;
    display: inline-block;
}

.paper-controls .btn:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.artifact-card {
    border: 1px solid var(--border-color);
    background: var(--surface1);
    border-radius: 8px;
    padding: 1.5em;
    margin-bottom: 2em;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    text-align: left;
}

.artifact-header {
    text-align: center;
    margin-bottom: 1.5em;
}

.artifact-header h3 {
    font-family: 'Inter', sans-serif;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.5em;
    margin-top: 0;
    color: var(--accent);
}

.artifact-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5em;
    margin-bottom: 2em;
    border: 1px solid var(--border-color);
    padding: 1em;
    border-radius: 8px;
    background: var(--background);
}

.nav-button {
    cursor: pointer;
    font-size: 2.5em;
    user-select: none;
    padding: 0 20px;
    color: var(--accent);
    border-radius: 50%;
    transition: color 0.3s, background-color 0.2s;
    position: relative;
    width: 1em;
    height: 1em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#prev-artifact::before {
    content: '\2039';
    /* single left angle quotation mark ‹ */
}

#next-artifact::before {
    content: '\203A';
    /* single right angle quotation mark › */
}

.nav-button:hover {
    color: var(--accent-hover);
    background-color: var(--surface1);
}

.nav-button.disabled {
    color: var(--border-color);
    cursor: not-allowed;
    background-color: transparent;
}

#artifact-text-container {
    flex-grow: 1;
    max-height: 350px;
    overflow-y: auto;
    border-left: 4px solid var(--accent);
    padding-left: 1.5em;
    font-size: 1.1em;
}

.columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2em;
}

.column {
    background-color: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5em;
    max-height: 600px;
    overflow-y: auto;
}

.column h3 {
    font-family: 'Inter', sans-serif;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.5em;
    margin-top: 0;
    color: var(--accent);
    position: sticky;
    top: -24px;
    background-color: var(--background);
    z-index: 10;
}

.query-block {
    margin-bottom: 1.5em;
    cursor: pointer;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid transparent;
    transition: background-color 0.2s, border-color 0.2s;
}

.query-block:hover {
    background-color: var(--surface1);
}

.query-block.selected {
    background-color: rgba(255, 221, 87, 0.05);
    border-color: var(--accent);
}

.query-category {
    font-family: 'Inter', sans-serif;
    font-weight: bold;
    font-size: 0.8em;
    text-transform: uppercase;
    color: var(--secondary-text);
    display: block;
    margin-bottom: 0.5em;
}

.query-text {
    background-color: var(--surface1);
    padding: 10px;
    border-radius: 4px;
    border-left: 3px solid var(--accent);
}

.query-block.selected .query-text {
    background-color: var(--surface2);
}

.reference-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1em;
    margin-bottom: 1em;
    background-color: var(--surface1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.reference-card b {
    color: var(--primary-text);
    font-weight: 600;
    display: block;
    margin-bottom: 2px;
}

.reference-card .confidence {
    color: var(--secondary-text);
    margin-top: 4px;
    margin-bottom: 6px;
    font-size: 0.95rem;
}

.reference-card details.reasoning>summary,
.reference-card details.reasoning>div {
    font-size: 0.95rem;
}

/* Code blocks styling */
.artifact-card pre {
    background: var(--surface2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 14px;
    overflow-x: auto;
    font-size: 0.95rem;
    line-height: 1.45;
    color: var(--primary-text);
}

.artifact-card pre code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--secondary-text);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}


/* --- Responsive Design --- */
@media (max-width: 992px) {
    .columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    #paper-title {
        font-size: 1.3em;
        /* Responsive size for smaller screens */
    }

    .artifact-navigation {
        flex-direction: column;
    }
}