/* Typography Archaeology - Font Layer System */
.archaeology-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: #f8f8f8;
    border: 1px solid #ddd;
    font-family: 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    position: relative;
}

.archaeology-text {
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 4;
}

/* Layer 1: Contemporary Sans-serif (default visible) */
.archaeology-text {
    font-family: 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    letter-spacing: 0.01em;
    color: #333;
}

/* Layer 2: Serif (revealed on hover) */
.archaeology-text::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: 'Times New Roman', Georgia, serif;
    font-weight: 400;
    color: #555;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 3;
    pointer-events: none;
    mix-blend-mode: multiply;
}

/* Layer 3: Script (revealed on longer hover) */
.archaeology-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: 'Brush Script MT', cursive;
    font-weight: 400;
    color: #777;
    opacity: 0;
    transition: opacity 0.8s ease;
    z-index: 2;
    pointer-events: none;
    mix-blend-mode: overlay;
    font-size: 1.1em;
    line-height: 1.4;
}

/* Layer 4: Blackletter (final archaeological layer) */
.archaeology-text[data-blackletter]::before {
    font-family: 'Old English Text MT', 'Blackletter686 BT', fantasy;
    font-weight: bold;
    color: #333;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

/* Hover states for layer reveals */
.archaeology-text:hover::before {
    opacity: 0.7;
    transition-delay: 0.2s;
}

.archaeology-text:hover::after {
    opacity: 0.5;
    transition-delay: 0.6s;
}

/* Extended hover for blackletter reveal */
.archaeology-text:hover:active::before {
    font-family: 'Old English Text MT', 'Blackletter686 BT', fantasy;
    opacity: 0.8;
    transition-delay: 1s;
}

/* Progressive opacity blending */
.layer-demo {
    margin: 2rem 0;
    padding: 1rem;
    background: white;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.layer-controls {
    margin: 1rem 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.layer-btn {
    padding: 0.5rem 1rem;
    border: 1px solid #666;
    background: white;
    cursor: pointer;
    font-family: monospace;
    font-size: 0.9em;
    transition: all 0.2s ease;
}

.layer-btn:hover {
    background: #f0f0f0;
}

.layer-btn.active {
    background: #333;
    color: white;
}

/* Manual layer toggle styles */
.manual-layers {
    position: relative;
}

.manual-layers .layer-sans {
    font-family: 'Helvetica Neue', sans-serif;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.manual-layers .layer-serif {
    position: absolute;
    top: 0;
    left: 0;
    font-family: 'Times New Roman', serif;
    opacity: 0;
    transition: opacity 0.3s ease;
    mix-blend-mode: multiply;
    pointer-events: none;
}

.manual-layers .layer-script {
    position: absolute;
    top: 0;
    left: 0;
    font-family: 'Brush Script MT', cursive;
    opacity: 0;
    transition: opacity 0.3s ease;
    mix-blend-mode: overlay;
    pointer-events: none;
    font-size: 1.1em;
}

.manual-layers .layer-blackletter {
    position: absolute;
    top: 0;
    left: 0;
    font-family: 'Old English Text MT', fantasy;
    opacity: 0;
    transition: opacity 0.3s ease;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    pointer-events: none;
}

/* Historical timeline */
.timeline {
    margin: 2rem 0;
    padding: 1rem;
    background: linear-gradient(to right, #f0f0f0 0%, #e0e0e0 25%, #d0d0d0 50%, #c0c0c0 75%, #b0b0b0 100%);
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
    text-align: center;
    color: #666;
}

.timeline-markers {
    display: flex;
    justify-content: space-between;
    font-weight: bold;
    margin-top: 0.5rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .archaeology-container {
        padding: 1rem;
        margin: 1rem;
    }

    .layer-controls {
        flex-direction: column;
    }

    .layer-btn {
        text-align: center;
    }
}