/* Base epoch tab button styling (used by Date→Epoch and PDF sections) */
.epoch-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center;
}

.epoch-tab-btn {
    display: inline-block;
    padding: 8px 16px;
    margin: 0 5px;
    background-color: #f8f9fa;
    color: #495057;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.epoch-tab-btn:hover {
    background-color: #e9ecef;
    color: #343a40;
    border-color: #ced4da;
}

.epoch-tab-btn.active {
    background-color: lightslategray;
    color: #ffffff;
    border-color: lightslategray;
    box-shadow: 0 2px 4px rgba(0, 123, 255, 0.25);
}

/* Dark theme overrides for epoch tab buttons */
[data-theme="dark"] .epoch-tab-btn {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .epoch-tab-btn:hover {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-light) !important;
}

[data-theme="dark"] .epoch-tab-btn.active {
    background-color: var(--button-bg) !important;
    color: #ffffff !important;
    border-color: var(--button-bg) !important;
    box-shadow: 0 2px 4px var(--shadow) !important;
}


/* ================== Footer Enhancement Styles ================== */
.footer-links {
    margin-top: 8px;
    font-size: 12px;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-weight: 500;
}

.footer-link:hover {
    color: var(--text-accent);
    text-decoration: underline;
}

.footer-separator {
    color: var(--text-secondary);
    margin: 0 8px;
}

/* Light theme footer visibility fixes - override any previous styles */
footer {
    color: #ffffff !important; /* Force white text for version and visit count */
}

footer span {
    color: #ffffff !important; /* Force white text for spans in footer */
}

/* "NT" in the version line links to the author but looks like plain text */
.footer-author {
    color: inherit !important;
    text-decoration: none;
}

.footer-link {
    color: #cccccc !important; /* Light grey for links in light theme */
}

.footer-link:hover {
    color: #ffffff !important; /* White on hover in light theme */
}

.footer-separator {
    color: #cccccc !important; /* Light grey for separators in light theme */
}