/* Info circle button and tooltip popup */
.btn-with-info {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    vertical-align: middle;
}
.info-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #3A5B7B;
    color: white;
    border: none;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    flex-shrink: 0;
    transition: background 0.2s;
}
.info-btn:hover {
    background: #2d4860;
}
/* Info buttons on dark headers - use lighter background for visibility */
.header .info-btn,
.header-content .info-btn {
    background: rgba(255, 255, 255, 0.25);
}
.header .info-btn:hover,
.header-content .info-btn:hover {
    background: rgba(255, 255, 255, 0.4);
}
.info-btn:focus {
    outline: 2px solid #E94E1B;
    outline-offset: 2px;
}
.info-tooltip-popup {
    display: none;
    position: fixed;
    z-index: 10001;
    max-width: 280px;
    padding: 12px 16px;
    background: #333;
    color: white;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.4;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.info-tooltip-popup.show {
    display: block;
}
.info-tooltip-popup::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid #333;
}